New upstream version 4.18.0

New upstream version 4.17.4
2025-08-26 22:55:14 +02:00 · 2025-03-29 13:24:20 +01:00
587 changed files with 26075 additions and 20457 deletions
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,7 @@ if ENABLE_SUBIDS
 SUBDIRS += libsubid
 endif

-SUBDIRS += src po contrib doc etc tests/unit
+SUBDIRS += src po doc etc tests/unit

 if ENABLE_REGENERATE_MAN
 SUBDIRS += man
--- a/Makefile.in
+++ b/Makefile.in
@@ -163,7 +163,7 @@ am__define_uniq_tagged_files = \
  unique=`for i in $$list; do \
    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
  done | $(am__uniquify_input)`
-DIST_SUBDIRS = lib libsubid src po contrib doc etc tests/unit man
+DIST_SUBDIRS = lib libsubid src po doc etc tests/unit man
 am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/config.h.in \
 	$(top_srcdir)/man/po/Makefile.in ABOUT-NLS AUTHORS.md COPYING \
 	ChangeLog NEWS README compile config.guess config.rpath \
@@ -243,6 +243,7 @@ EGREP = @EGREP@
 ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@
 GMSGFMT = @GMSGFMT@
 GMSGFMT_015 = @GMSGFMT_015@
@@ -333,8 +334,6 @@ XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@
 XMLCATALOG = @XMLCATALOG@
 XML_CATALOG_FILE = @XML_CATALOG_FILE@
 XSLTPROC = @XSLTPROC@
-YACC = @YACC@
-YFLAGS = @YFLAGS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
@@ -389,7 +388,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = lib $(am__append_1) src po contrib doc etc tests/unit \
+SUBDIRS = lib $(am__append_1) src po doc etc tests/unit \
 	$(am__append_2)
 CLEANFILES = man/8.out man/po/remove-potcdate.* man/*/login.defs.d man/*/*.mo
 EXTRA_DIST = NEWS README tests/
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -22,14 +22,15 @@ To do so, use the procedure documented by the package, typically 'autoreconf'.])

 # ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
 #
-#   Copyright (C) 1999-2008, 2011-2015 Free Software Foundation, Inc.
+#   Copyright (C) 1999-2008, 2011-2019, 2021-2022 Free Software
+#   Foundation, Inc.
 #   Written by Thomas Tanner, 1999
 #
 # This file is free software; the Free Software Foundation gives
 # unlimited permission to copy and/or distribute it, with or without
 # modifications, as long as this notice is preserved.

-# serial 20 LTDL_INIT
+# serial 21 LTDL_INIT

 # LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
 # ------------------------------------------
@@ -357,7 +358,7 @@ AC_CONFIG_COMMANDS_PRE([
    if test -n "$_LT_LIBOBJS"; then
      # Remove the extension.
      _lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
-      for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
+      for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | $SED "$_lt_sed_drop_objext" | sort -u`; do
        _ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
        _ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
      done
@@ -495,7 +496,7 @@ AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
    # If you are looking for one http://www.opendarwin.org/projects/dlcompat
    lt_cv_sys_dlopen_deplibs=yes
    ;;
-  freebsd* | dragonfly*)
+  freebsd* | dragonfly* | midnightbsd*)
    lt_cv_sys_dlopen_deplibs=yes
    ;;
  gnu* | linux* | k*bsd*-gnu | kopensolaris*-gnu)
@@ -930,8 +931,8 @@ AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])

-# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
-# serial 11 (pkg-config-0.29.1)
+# pkg.m4 - Macros to locate and use pkg-config.   -*- Autoconf -*-
+# serial 12 (pkg-config-0.29.2)

 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
@@ -973,7 +974,7 @@ dnl
 dnl See the "Since" comment for each macro you use to see what version
 dnl of the macros you require.
 m4_defun([PKG_PREREQ],
-[m4_define([PKG_MACROS_VERSION], [0.29.1])
+[m4_define([PKG_MACROS_VERSION], [0.29.2])
 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 ])dnl PKG_PREREQ
@@ -1018,7 +1019,7 @@ dnl Check to see whether a particular set of modules exists. Similar to
 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
 dnl
 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-dnl only at the first occurence in configure.ac, so if the first place
+dnl only at the first occurrence in configure.ac, so if the first place
 dnl it's called might be skipped (such as if it is within an "if", you
 dnl have to call PKG_CHECK_EXISTS manually
 AC_DEFUN([PKG_CHECK_EXISTS],
@@ -1074,7 +1075,7 @@ AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl

 pkg_failed=no
-AC_MSG_CHECKING([for $1])
+AC_MSG_CHECKING([for $2])

 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
@@ -1084,17 +1085,17 @@ and $1[]_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.])

 if test $pkg_failed = yes; then
-   	AC_MSG_RESULT([no])
+        AC_MSG_RESULT([no])
        _PKG_SHORT_ERRORS_SUPPORTED
        if test $_pkg_short_errors_supported = yes; then
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else 
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+                $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+        else
+                $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
        fi
-	# Put the nasty error message in config.log where it belongs
-	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+        # Put the nasty error message in config.log where it belongs
+        echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD

-	m4_default([$4], [AC_MSG_ERROR(
+        m4_default([$4], [AC_MSG_ERROR(
 [Package requirements ($2) were not met:

 $$1_PKG_ERRORS
@@ -1105,8 +1106,8 @@ installed software in a non-standard prefix.
 _PKG_TEXT])[]dnl
        ])
 elif test $pkg_failed = untried; then
-     	AC_MSG_RESULT([no])
-	m4_default([$4], [AC_MSG_FAILURE(
+        AC_MSG_RESULT([no])
+        m4_default([$4], [AC_MSG_FAILURE(
 [The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -1116,10 +1117,10 @@ _PKG_TEXT
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
        ])
 else
-	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
-	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+        $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+        $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
        AC_MSG_RESULT([yes])
-	$3
+        $3
 fi[]dnl
 ])dnl PKG_CHECK_MODULES

--- a/config.h.in
+++ b/config.h.in
@@ -91,27 +91,18 @@
 /* Defined to 1 if you have the declaration of 'fgetpwent_r' */
 #undef HAVE_FGETPWENT_R

-/* Define to 1 if you have the `futimes' function. */
-#undef HAVE_FUTIMES
-
 /* Define to 1 if you have the `getentropy' function. */
 #undef HAVE_GETENTROPY

 /* Define to 1 if you have the `getrandom' function. */
 #undef HAVE_GETRANDOM

-/* Define to 1 if you have the `getspnam' function. */
-#undef HAVE_GETSPNAM
-
 /* Define to 1 if you have the `getspnam_r' function. */
 #undef HAVE_GETSPNAM_R

 /* Define if the GNU gettext() function is already present or preinstalled. */
 #undef HAVE_GETTEXT

-/* Define to 1 if you have the `getusershell' function. */
-#undef HAVE_GETUSERSHELL
-
 /* Define if you have the iconv() function and it works. */
 #undef HAVE_ICONV

@@ -466,8 +457,5 @@
 /* Define for large files, on AIX-style hosts. */
 #undef _LARGE_FILES

-/* Path for utmp file. */
-#undef _UTMP_FILE
-
 /* Path for wtmp file. */
 #undef _WTMP_FILE
--- a/510
+++ b/510
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ m4_define([libsubid_abi_major], 5)
 m4_define([libsubid_abi_minor], 0)
 m4_define([libsubid_abi_micro], 0)
 m4_define([libsubid_abi], [libsubid_abi_major.libsubid_abi_minor.libsubid_abi_micro])
-AC_INIT([shadow], [4.17.3], [pkg-shadow-devel@lists.alioth.debian.org], [],
+AC_INIT([shadow], [4.18.0], [pkg-shadow-devel@lists.alioth.debian.org], [],
 	[https://github.com/shadow-maint/shadow])
 AM_INIT_AUTOMAKE([1.11 foreign dist-xz subdir-objects tar-pax])
 AC_CONFIG_MACRO_DIRS([m4])
@@ -30,7 +30,6 @@ AM_MAINTAINER_MODE
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_LN_S
-AC_PROG_YACC
 LT_INIT
 LT_LIB_DLLOAD

@@ -39,8 +38,8 @@ dnl Checks for libraries.
 dnl shadow now uses the libc's shadow implementation
 AC_CHECK_HEADER([shadow.h],,[AC_MSG_ERROR([You need a libc with shadow.h])])

-AC_CHECK_FUNCS(arc4random_buf futimes \
-	getentropy getrandom getspnam getusershell \
+AC_CHECK_FUNCS(arc4random_buf \
+	getentropy getrandom \
 	lckpwdf lutimes \
 	updwtmpx innetgr \
 	getspnam_r \
@@ -90,18 +89,6 @@ if test $shadow_cv_mailfile != none; then
 		[Name of user's mail spool file if stored in user's home directory.])
 fi

-AC_CACHE_CHECK([location of utmp], shadow_cv_utmpdir,
-[for shadow_cv_utmpdir in /var/run /var/adm /usr/adm /etc none; do
-	if test -f $shadow_cv_utmpdir/utmp; then
-		break
-	fi
-done])
-if test "$shadow_cv_utmpdir" = "none"; then
-	AC_MSG_WARN(utmp file not found)
-fi
-AC_DEFINE_UNQUOTED(_UTMP_FILE, "$shadow_cv_utmpdir/utmp",
-	[Path for utmp file.])
-
 AC_CACHE_CHECK([location of faillog/lastlog/wtmp], shadow_cv_logdir,
 [for shadow_cv_logdir in /var/log /var/adm /usr/adm /etc; do
 	if test -d $shadow_cv_logdir; then
@@ -115,13 +102,7 @@ AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$shadow_cv_logdir/lastlog",
 AC_DEFINE_UNQUOTED(FAILLOG_FILE, "$shadow_cv_logdir/faillog",
 	[Path for faillog file.])

-AC_CACHE_CHECK([location of the passwd program], shadow_cv_passwd_dir,
-[if test -f /usr/bin/passwd; then
-	shadow_cv_passwd_dir=/usr/bin
-else
-	shadow_cv_passwd_dir=/bin
-fi])
-AC_DEFINE_UNQUOTED(PASSWD_PROGRAM, "$shadow_cv_passwd_dir/passwd",
+AC_DEFINE_UNQUOTED(PASSWD_PROGRAM, "$exec_prefix/bin/passwd",
 	[Path to passwd program.])

 AC_ARG_ENABLE(shadowgrp,
@@ -349,7 +330,7 @@ if test "$enable_lastlog" = "yes" && test "$ac_cv_header_lastlog_h" = "yes"; the
 		enable_lastlog="yes"
 	else
 		AC_MSG_ERROR([Cannot enable support for lastlog on systems where the data structures aren't available])
-		enable_subids="no"
+		enable_lastlog="no"
 	fi
 fi
 AM_CONDITIONAL(ENABLE_LASTLOG, test "x$enable_lastlog" != "xno")
@@ -702,7 +683,6 @@ AC_CONFIG_FILES([
 	libsubid/Makefile
 	libsubid/subid.h
 	src/Makefile
-	contrib/Makefile
 	etc/Makefile
 	etc/pam.d/Makefile
 	etc/shadow-maint/Makefile
--- a/contrib/Makefile.am
+++ b/contrib/Makefile.am
@@ -1,4 +0,0 @@
-# This is a dummy Makefile.am to get automake work flawlessly,
-# and also cooperate to make a distribution for `make dist'
-
-EXTRA_DIST = README adduser.c adduser.sh adduser2.sh
--- a/contrib/Makefile.in
+++ b/contrib/Makefile.in
@@ -1,507 +0,0 @@
-# Makefile.in generated by automake 1.16.5 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994-2021 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-# This is a dummy Makefile.am to get automake work flawlessly,
-# and also cooperate to make a distribution for `make dist'
-VPATH = @srcdir@
-am__is_gnu_make = { \
-  if test -z '$(MAKELEVEL)'; then \
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-.PRECIOUS: Makefile
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-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
--- a/contrib/README
+++ b/contrib/README
@@ -1,7 +0,0 @@
-People keep sending various adduser programs and scripts...  They are
-all in this directory.  I haven't tested them, use at your own risk.
-Anyway, the best one I've seen so far is adduser-3.x from Debian.
-
-udbachk.tgz is a passwd/group/shadow file integrity checker.
-
--marekm
--- a/contrib/adduser.c
+++ b/contrib/adduser.c
@@ -1,503 +0,0 @@
-/****
-** 04/21/96
-** hacked even more, replaced gets() with something slightly harder to buffer
-** overflow. Added support for setting a default quota on new account, with
-** edquota -p. Other cleanups for security, I let some users run adduser suid
-** root to add new accounts. (overflow checks, clobber environment, valid 
-** shell checks, restrictions on gid + home dir settings).
-
-** Added max. username length. Used syslog() a bit for important events. 
-** Support to immediately expire account with passwd -e.
-
-** Called it version 2.0! Because I felt like it!
-
-** -- Chris, chris@ferret.lmh.ox.ac.uk
-
-** 03/17/96
-** hacked a bit more, removed unused code, cleaned up for gcc -Wall.
-** --marekm
-**
-** 02/26/96
-** modified to call shadow utils (useradd,chage,passwd) on shadowed 
-** systems - Cristian Gafton, gafton@sorosis.ro
-**
-** 6/27/95
-** shadow-adduser 1.4:
-**
-** now it copies the /etc/skel dir into the person's dir, 
-** makes the mail folders, changed some defaults and made a 'make 
-** install' just for the hell of it.
-**
-** Greg Gallagher
-** CIN.Net
-**
-** 1/28/95
-** shadow-adduser 1.3:
-** 
-** Basically a bug-fix on my additions in 1.2.  Thanks to Terry Stewart 
-** (stew@texas.net) for pointing out one of the many idiotic bugs I introduced.
-** It was such a stupid bug that I would have never seen it myself.
-**
-**                                Brandon
-*****
-** 01/27/95
-** 
-** shadow-adduser 1.2:
-** I took the C source from adduser-shadow (credits are below) and made
-** it a little more worthwhile.  Many small changes... Here's
-** the ones I can remember:
-** 
-** Removed support for non-shadowed systems (if you don't have shadow,
-**     use the original adduser, don't get this shadow version!)
-** Added support for the correct /etc/shadow fields (Min days before
-**     password change, max days before password change, Warning days,
-**     and how many days from expiry date does the account go invalid)
-**     The previous version just left all of those fields blank.
-**     There is still one field left (expiry date for the account, period)
-**     which I have left blank because I do not use it and didn't want to
-**     spend any more time on this.  I'm sure someone will put it in and
-**     tack another plethora of credits on here. :)
-** Added in the password date field, which should always reflect the last
-**     date the password was changed, for expiry purposes.  "passwd" always
-**     updates this field, so the adduser program should set it up right
-**     initially (or a user could keep their initial password forever ;)
-**     The number is in days since Jan 1st, 1970.
-**
-**                       Have fun with it, and someone please make
-**                       a real version(this is still just a hack)
-**                       for us all to use (and Email it to me???)
-**
-**                               Brandon
-**                                  photon@usis.com
-**
-***** 
-** adduser 1.0: add a new user account (For systems not using shadow)
-** With a nice little interface and a will to do all the work for you.
-**
-** Craig Hagan
-** hagan@opine.cs.umass.edu
-**
-** Modified to really work, look clean, and find unused uid by Chris Cappuccio
-** chris@slinky.cs.umass.edu
-**
-*****
-**
-** 01/19/95
-**
-** FURTHER modifications to enable shadow passwd support (kludged, but
-** no more so than the original)  by Dan Crowson - dcrowson@mo.net
-**
-** Search on DAN for all changes...
-**
-*****
-**
-** cc -O -o adduser adduser.c
-** Use gcc if you have it... (political reasons beyond my control) (chris)
-**
-** I've gotten this program to work with success under Linux (without
-** shadow) and SunOS 4.1.3. I would assume it should work pretty well
-** on any system that uses no shadow. (chris)
-**
-** If you have no crypt() then try
-** cc -DNO_CRYPT -O -o adduser adduser.c xfdes.c
-** I'm not sure how login operates with no crypt()... I guess
-** the same way we're doing it here.
-*/
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <pwd.h>
-#include <grp.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-#include <time.h>
-#include <sys/types.h>
-#include <sys/timeb.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <syslog.h>
-
-#include "string/strcmp/streq.h"
-
-
-#define IMMEDIATE_CHANGE	/* Expire newly created password, must be changed
-				 * immediately upon next login */
-#define HAVE_QUOTAS		/* Obvious */
-#define EXPIRE_VALS_SET		/* If defined, 'normal' users can't change 
-				 * password expiry values (if running suid root) */
-
-#define HAVE_GETUSERSHELL	/* FIXME: Isn't this defined in config.h too? */
-#define LOGGING			/* If we want to log various things to syslog */
-#define MAX_USRNAME  8		/* Longer usernames seem to work on my system....
-				 * But they're probably a poor idea */
-
-
-#define DEFAULT_SHELL	"/bin/bash"	/* because BASH is your friend */
-#define DEFAULT_HOME	"/home"
-#define USERADD_PATH	"/usr/sbin/useradd"
-#define CHAGE_PATH	"/usr/bin/chage"
-#define PASSWD_PATH	"/usr/bin/passwd"
-#define EDQUOTA_PATH	"/usr/sbin/edquota"
-#define QUOTA_DEFAULT	"defuser"
-#define DEFAULT_GROUP	100
-
-#define DEFAULT_MIN_PASS 0
-#define DEFAULT_MAX_PASS 100
-#define DEFAULT_WARN_PASS 14
-#define DEFAULT_USER_DIE 366
-
-void safeget (char *, int);
-
-void 
-main (void)
-{
-  char foo[32];
-  char usrname[32], person[32], dir[32], shell[32];
-  unsigned int group, min_pass, max_pass, warn_pass, user_die;
-  /* the group and uid of the new user */
-  int bad = 0, done = 0, correct = 0, olduid;
-  char cmd[255];
-  struct group *grp;
-
-  /* flags, in order:
-   * bad to see if the username is in /etc/passwd, or if strange stuff has
-   * been typed if the user might be put in group 0
-   * done allows the program to exit when a user has been added
-   * correct loops until a username is found that isn't in /etc/passwd
-   */
-
-  /* The real program starts HERE! */
-
-  if (geteuid () != 0)
-    {
-      printf ("It seems you don't have access to add a new user.  Try\n");
-      printf ("logging in as root or su root to gain superuser access.\n");
-      exit (1);
-    }
-
-  /* Sanity checks
-   */
-
-#ifdef LOGGING
-  openlog ("adduser", LOG_PID | LOG_CONS | LOG_NOWAIT, LOG_AUTH);
-  syslog (LOG_INFO, "invoked by user %s\n", getpwuid (getuid ())->pw_name);
-#endif
-
-  if (!(grp = getgrgid (DEFAULT_GROUP)))
-    {
-      printf ("Error: the default group %d does not exist on this system!\n",
-	      DEFAULT_GROUP);
-      printf ("adduser must be recompiled.\n");
-#ifdef LOGGING
-      syslog (LOG_ERR, "warning: failed. no such default group\n");
-      closelog ();
-#endif
-      exit (1);
-    };
-
-  while (!correct)
-    {				/* loop until a "good" usrname is chosen */
-      while (!done)
-	{
-	  printf ("\nLogin to add (^C to quit): ");
-	  fflush (stdout);
-
-	  safeget (usrname, sizeof (usrname));
-
-	  if (!strlen (usrname))
-	    {
-	      printf ("Empty input.\n");
-	      done = 0;
-	      continue;
-	    };
-
-	  /* what I saw here before made me think maybe I was running DOS */
-	  /* might this be a solution? (chris) */
-	  if (strlen (usrname) > MAX_USRNAME)
-	    {
-	      printf ("That name is longer than the maximum of %d characters. Choose another.\n", MAX_USRNAME);
-	      done = 0;
-	    }
-	  else if (getpwnam (usrname) != NULL)
-	    {
-	      printf ("That name is in use, choose another.\n");
-	      done = 0;
-	    }
-	  else if (strchr (usrname, ' ') != NULL)
-	    {
-	      printf ("No spaces in username!!\n");
-	      done = 0;
-	    }
-	  else
-	    done = 1;
-	};			/* done, we have a valid new user name */
-
-      /* all set, get the rest of the stuff */
-      printf ("\nEditing information for new user [%s]\n", usrname);
-
-      printf ("\nFull Name [%s]: ", usrname);
-      fflush (stdout);
-      safeget (person, sizeof (person));
-      if (!strlen (person))
-	{
-	  bzero (person, sizeof (person));
-	  strcpy (person, usrname);
-	};
-
-      if (getuid () == 0)
-	{
-	  do
-	    {
-	      bad = 0;
-	      printf ("GID [%d]: ", DEFAULT_GROUP);
-	      fflush (stdout);
-	      safeget (foo, sizeof (foo));
-	      if (!strlen (foo))
-		group = DEFAULT_GROUP;
-	      else if (isdigit (*foo))
-		{
-		  group = atoi (foo);
-		  if (!(grp = getgrgid (group)))
-		    {
-		      printf ("unknown gid %s\n", foo);
-		      group = DEFAULT_GROUP;
-		      bad = 1;
-		    };
-		}
-	      else if ((grp = getgrnam (foo)))
-		group = grp->gr_gid;
-	      else
-		{
-		  printf ("unknown group %s\n", foo);
-		  group = DEFAULT_GROUP;
-		  bad = 1;
-		}
-	      if (group == 0)
-		{		/* You're not allowed to make root group users! */
-		  printf ("Creation of root group users not allowed (must be done by hand)\n");
-		  group = DEFAULT_GROUP;
-		  bad = 1;
-		};
-	    }
-	  while (bad);
-	}
-      else
-	{
-	  printf ("Group will be default of: %d\n", DEFAULT_GROUP);
-	  group = DEFAULT_GROUP;
-	}
-
-      if (getuid () == 0)
-	{
-	  printf ("\nIf home dir ends with a / then '%s' will be appended to it\n", usrname);
-	  printf ("Home Directory [%s/%s]: ", DEFAULT_HOME, usrname);
-	  fflush (stdout);
-	  safeget (dir, sizeof (dir));
-	  if (!strlen(dir))  /* hit return */
-	    sprintf(dir, "%s/%s", DEFAULT_HOME, usrname);
-	  else if (dir[strlen (dir) - 1] == '/')
-	    strcat(dir, usrname);
-	}
-      else
-	{
-	  printf ("\nHome directory will be %s/%s\n", DEFAULT_HOME, usrname);
-	  sprintf (dir, "%s/%s", DEFAULT_HOME, usrname);
-	}
-
-      printf ("\nShell [%s]: ", DEFAULT_SHELL);
-      fflush (stdout);
-      safeget (shell, sizeof (shell));
-      if (!strlen (shell))
-	strcpy(shell, DEFAULT_SHELL);
-      else
-	{
-	  char *sh;
-	  int ok = 0;
-#ifdef HAVE_GETUSERSHELL
-	  setusershell ();
-	  while ((sh = getusershell ()) != NULL)
-	    if (streq(shell, sh))
-	      ok = 1;
-	  endusershell ();
-#endif
-	  if (!ok)
-	    {
-	      if (getuid () == 0)
-		printf ("Warning: root allowed non standard shell\n");
-	      else
-		{
-		  printf ("Shell NOT in /etc/shells, DEFAULT used\n");
-		  strcpy(shell, DEFAULT_SHELL);
-		}
-	    }
-	}
-
-#ifdef EXPIRE_VALS_SET
-      if (getuid () == 0)
-	{
-#endif
-	  printf ("\nMin. Password Change Days [%d]: ", DEFAULT_MIN_PASS);
-	  fflush (stdout);
-	  safeget (foo, sizeof (foo));
-	  if (strlen (foo) > 1)
-	    min_pass = DEFAULT_MIN_PASS;
-	  else
-	    min_pass = atoi (foo);
-
-	  printf ("Max. Password Change Days [%d]: ", DEFAULT_MAX_PASS);
-	  fflush (stdout);
-	  safeget (foo, sizeof (foo));
-	  if (strlen (foo) > 1)
-	    max_pass = atoi (foo);
-	  else
-	    max_pass = DEFAULT_MAX_PASS;
-
-	  printf ("Password Warning Days [%d]: ", DEFAULT_WARN_PASS);
-	  fflush (stdout);
-	  safeget (foo, sizeof (foo));
-	  warn_pass = atoi (foo);
-	  if (warn_pass == 0)
-
-	    warn_pass = DEFAULT_WARN_PASS;
-
-	  printf ("Days after Password Expiry for Account Locking [%d]: ", DEFAULT_USER_DIE);
-	  fflush (stdout);
-	  safeget (foo, sizeof (foo));
-	  user_die = atoi (foo);
-	  if (user_die == 0)
-	    user_die = DEFAULT_USER_DIE;
-
-#ifdef EXPIRE_VALS_SET
-	}
-      else
-	{
-	  printf ("\nSorry, account expiry values are set.\n");
-	  user_die = DEFAULT_USER_DIE;
-	  warn_pass = DEFAULT_WARN_PASS;
-	  max_pass = DEFAULT_MAX_PASS;
-	  min_pass = DEFAULT_MIN_PASS;
-	}
-#endif
-
-      printf ("\nInformation for new user [%s] [%s]:\n", usrname, person);
-      printf ("Home directory: [%s] Shell: [%s]\n", dir, shell);
-      printf ("GID: [%d]\n", group);
-      printf ("MinPass: [%d] MaxPass: [%d] WarnPass: [%d] UserExpire: [%d]\n",
-	      min_pass, max_pass, warn_pass, user_die);
-      printf ("\nIs this correct? [y/N]: ");
-      fflush (stdout);
-      safeget (foo, sizeof (foo));
-
-      done = bad = correct = (foo[0] == 'y' || foo[0] == 'Y');
-
-      if (bad != 1)
-	printf ("\nUser [%s] not added\n", usrname);
-    }
-
-  /* Clobber the environment, I run this suid root sometimes to let 
-   * non root privileged accounts add users --chris */
-
-  *environ = NULL;
-
-  bzero (cmd, sizeof (cmd));
-  sprintf (cmd, "%s -g %d -d %s -s %s -c \"%s\" -m -k /etc/skel %s",
-	   USERADD_PATH, group, dir, shell, person, usrname);
-  printf ("Calling useradd to add new user:\n%s\n", cmd);
-  if (system (cmd))
-    {
-      printf ("User add failed!\n");
-#ifdef LOGGING
-      syslog (LOG_ERR, "could not add new user\n");
-      closelog ();
-#endif
-      exit (errno);
-    };
-
-  olduid = getuid ();	/* chage, passwd, edquota etc. require ruid = root
-			 */
-  setuid (0);
-
-  bzero (cmd, sizeof (cmd));
-
-  /* Chage runs suid root. => we need ruid root to run it with
-   * anything other than chage -l
-   */
-
-  sprintf (cmd, "%s -m %d -M %d -W %d -I %d %s", CHAGE_PATH,
-	   min_pass, max_pass, warn_pass, user_die, usrname);
-  printf ("%s\n", cmd);
-  if (system (cmd))
-    {
-      printf ("There was an error setting password expire values\n");
-#ifdef LOGGING
-      syslog (LOG_ERR, "password expire values could not be set\n");
-#endif
-    };
-
-  /* I want to add a user completely with one easy command --chris */
-
-#ifdef HAVE_QUOTAS
-  bzero (cmd, sizeof (cmd));
-  sprintf (cmd, "%s -p %s -u %s", EDQUOTA_PATH, QUOTA_DEFAULT, usrname);
-  printf ("%s\n", cmd);
-  if (system (cmd))
-    {
-      printf ("\nWarning: error setting quota\n");
-#ifdef LOGGING
-      syslog (LOG_ERR, "warning: account created but NO quotas set!\n");
-#endif /* LOGGING */
-    }
-  else
-    printf ("\nDefault quota set.\n");
-#endif /* HAVE_QUOTAS */
-
-  bzero (cmd, sizeof (cmd));
-  sprintf (cmd, "%s %s", PASSWD_PATH, usrname);
-  if (system (cmd))
-    {
-      printf ("\nWarning: error setting password\n");
-#ifdef LOGGING
-      syslog (LOG_ERR, "warning: password set failed!\n");
-#endif
-    }
-#ifdef IMMEDIATE_CHANGE
-  bzero (cmd, sizeof (cmd));
-  sprintf (cmd, "%s -e %s", PASSWD_PATH, usrname);
-  if (system (cmd))
-    {
-      printf ("\nWarning: error expiring password\n");
-#ifdef LOGGING
-      syslog (LOG_ERR, "warning: password expire failed!\n");
-#endif /* LOGGING */
-    }
-#endif /* IMMEDIATE_CHANGE */
-
-  setuid (olduid);
-
-#ifdef LOGGING
-  closelog ();
-#endif
-
-  printf ("\nDone.\n");
-}
-
-void 
-safeget (char *buf, int maxlen)
-{
-  int c, i = 0, bad = 0;
-  char *bstart = buf;
-  while ((c = getc (stdin)) != EOF && (c != '\n') && (++i < maxlen))
-    {
-      bad = (!isalnum (c) && (c != '_') && (c != ' '));
-      *(buf++) = c;
-    }
-  stpcpy(buf, "");
-
-  if (bad)
-    {
-      printf ("\nString contained banned character. Please stick to alphanumerics.\n");
-      stpcpy(bstart, "");
-    }
-}
-
--- a/contrib/adduser.sh
+++ b/contrib/adduser.sh
@@ -1,90 +0,0 @@
-#!/bin/sh
-# adduser script for use with shadow passwords and useradd command.
-# by Hrvoje Dogan <hdogan@student.math.hr>, Dec 1995.
-
-echo -n "Login name for new user []:"
-read LOGIN
-if [ -z $LOGIN ]
-then echo "Come on, man, you can't leave the login field empty...";exit
-fi
-echo
-echo -n "User id for $LOGIN [ defaults to next available]:"
-read ID
-GUID="-u $ID"
-if [ -z $ID ] 
-then GUID=""
-fi
-
-echo
-echo -n "Initial group for $LOGIN [users]:"
-read GID
-GGID="-g $GID"
-if [ -z $GID ]
-then GGID=""
-fi
-
-echo
-echo -n "Additional groups for $LOGIN []:"
-read AGID
-GAGID="-G $AGID"
-if [ -z $AGID ]
-then GAGID=""
-fi
-
-echo
-echo -n "$LOGIN's home directory [/home/$LOGIN]:"
-read HME
-GHME="-d $HME"
-if [ -z $HME ]
-then GHME=""
-fi
-
-echo
-echo -n "$LOGIN's shell [/bin/bash]:"
-read SHL
-GSHL="-s $SHL"
-if [ -z $SHL ]
-then GSHL=""
-fi
-
-echo
-echo -n "$LOGIN's account expiry date (MM/DD/YY) []:"
-read EXP
-GEXP="-e $EXP"
-if [ -z $EXP ]
-then GEXP=""
-fi
-echo
-echo OK, I'm about to make a new account. Here's what you entered so far:
-echo New login name: $LOGIN
-if [ -z $GUID ] 
-then echo New UID: [Next available]
-else echo New UID: $UID
-fi
-if [ -z $GGID ]
-then echo Initial group: users
-else echo Initial group: $GID
-fi
-if [ -z $GAGID ]
-then echo Additional groups: [none]
-else echo Additional groups: $AGID
-fi
-if [ -z $GHME ]
-then echo Home directory: /home/$LOGIN
-else echo Home directory: $HME
-fi
-if [ -z $GSHL ]
-then echo Shell: /bin/bash
-else echo Shell: $SHL
-fi
-if [ -z $GEXP ]
-then echo Expiry date: [no expiration]
-else echo Expiry date: $EXP
-fi
-echo "This is it... if you want to bail out, you'd better do it now."
-read FOO
-echo Making new account...
-/usr/sbin/useradd $GHME -m $GEXP $GGID $GAGID $GSHL $GUID $LOGIN
-/usr/bin/chfn $LOGIN
-/usr/bin/passwd $LOGIN
-echo "Done..."
--- a/contrib/adduser2.sh
+++ b/contrib/adduser2.sh
@@ -1,743 +0,0 @@
-#!/bin/bash
-#
-#  adduser			Interactive user adding program.
-#
-#  Copyright (C) 1996		Petri Mattila, Prihateam Networks
-#				petri@prihateam.fi
-#	
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2, or (at your option)
-#  any later version.
-#
-# Changes:
-#	220496	v0.01	Initial version
-#	230496	v0.02	More checks, embolden summary
-#	240496		Even more checks
-#	250496 		Help with ?
-#	040596	v0.03	Cleanups
-#	050596	v0.04	Bug fixes, expire date checks
-#	070596	v0.05	Iso-latin-1 names
-#
-
-## Defaults
-
-# default groups
-def_group="users"
-def_other_groups=""
-
-# default home directory
-def_home_dir=/home/users
-
-# default shell
-def_shell=/bin/tcsh
-
-# Default expiration date (mm/dd/yy)
-def_expire=""
-
-# default dates
-def_pwd_min=0
-def_pwd_max=90
-def_pwd_warn=14
-def_pwd_iact=14
-
-
-# possible UIDs
-uid_low=1000
-uid_high=64000
-
-# skel directory
-skel=/etc/skel
-
-# default mode for home directory
-def_mode=711
-
-# Regex, that the login name must meet, only ANSI characters
-login_regex='^[0-9a-zA-Z_-]*$'
-
-# Regex, that the user name must meet
-# ANSI version
-##name_regex='^[0-9a-zA-Z_-\ ]*$'
-# ISO-LATIN-1 version
-name_regex='^[0-9a-zA-ZÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöùúûüýþÿ_-\ ]*$'
-
-# set PATH
-export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
-
-# Some special characters
-case "$TERM" in
-   vt*|ansi*|con*|xterm*|linux*)
-	S='[1m'	# start embolden
-	E='[m'	# end embolden
-	;;
-   *)	
-	S=''
-	E=''
-	;;
-esac
-
-
-## Functions
-
-check_root() {
-	if test "$EUID" -ne 0
-	then
-		echo "You must be root to run this program."
-		exit 1
-	fi
-}
-
-check_user() {
-	local usr pwd uid gid name home sh
-
-	cat /etc/passwd | (
-		while IFS=":" read usr pwd uid gid name home sh
-		do
-			if test "$1" = "${usr}"
-			then
-				return 1
-			fi
-		done
-		return 0
-	)
-}
-
-check_group() {
-	local read grp pwd gid members
-
-	cat /etc/group | (
-		while IFS=":" read grp pwd gid members
-		do
-			if test "$1" = "${grp}"
-			then
-				return 1
-			fi
-		done
-		return 0
-	)
-}
-
-check_other_groups() {
-	local grp check IFS
-
-	check="$1"
-	IFS=","
-
-	set ${check}
-	for grp
-	do
-		if check_group "${grp}"
-		then
-			echo "Group ${grp} does not exist."
-			return 1
-		fi
-	done
-	return 0
-}		
-
-check_uid() {
-	local usr pwd uid gid name home sh
-	
-	cat /etc/passwd | (
-		while IFS=":" read usr pwd uid gid name home sh
-		do
-			if test "$1" = "${uid}"
-			then
-				return 1
-			fi
-		done
-		return 0
-	)
-}
-
-read_yn() {
-	local ans ynd
-	
-	ynd="$1"
-	
-	while :
-	do
-		read ans	
-		case "${ans}" in
-		      "") return ${ynd} ;;
-		    [nN]) return 1 ;;
-		    [yY]) return 0 ;;
-		       *) echo -n "Y or N, please ? " ;;
-		esac
-	done
-}
-
-read_login() {
-	echo
-	while :
-	do
-		echo -n "Login: ${def_login:+[${def_login}] }"
-		read login
-		
-		if test "${login}" = '?'
-		then
-			less /etc/passwd
-			echo
-			continue
-		fi
-
-		if test -z "${login}" -a -n "${def_login}"
-		then
-			login="${def_login}"
-			echo "Using ${login}"
-			return
-		fi
-		
-		if test "${#login}" -gt 8
-		then
-			echo "Login must be at most 8 characters long"
-			continue
-		fi
-		
-		if test "${#login}" -lt 2
-		then
-			echo "Login must be at least 2 characters long"
-			continue
-		fi
-		
-		if ! expr "${login}" : "${login_regex}" &> /dev/null
-		then
-			echo "Please use letters, numbers and special characters _-,."
-			continue
-		fi
-		
-		if ! check_user "${login}"
-		then
-			echo "Username ${login} is already in use"
-			continue
-		fi
-		
-		def_login="${login}"
-		return
-	done
-}
-
-read_name () {
-	echo
-	while :
-	do
-		echo -n "Real name: ${def_name:+[${def_name}] }"
-		read name
-		
-		if test "${name}" = '?'
-		then
-			less /etc/passwd
-			echo
-			continue
-		fi
-
-		if test -z "${name}" -a -n "${def_name}"
-		then
-			name="${def_name}"
-			echo "Using ${name}"
-		fi
-
-		if test "${#name}" -gt 32
-		then
-			echo "Name should be at most 32 characters long"
-			continue
-		fi
-
-		if ! expr "${name}" : "${name_regex}" &> /dev/null
-		then
-			echo "Please use letters, numbers, spaces and special characters ,._-"
-			continue
-		fi
-		
-		def_name="${name}"
-		return
-	done
-}
-
-read_home() {
-	local x
-	
-	echo
-	while :
-	do
-		echo -n "Home Directory: [${def_home_dir}/${login}] "
-		read home
-		
-		if test -z "${home}"
-		then
-			home="${def_home_dir}/${login}"
-			echo "Using ${home}"
-		fi
-		
-		if ! expr "${home}" : '^[0-9a-zA-Z,._-\/]*$' &> /dev/null
-		then
-			echo "Please use letters, numbers, spaces and special characters ,._-/"
-			continue
-		fi
-		
-		x="$(basename ${home})"
-		if test "${x}" != "${login}"
-		then
-			echo "Warning: you are about to use different login name and home directory."
-		fi
-		
-		x="$(dirname ${home})"
-		if ! test -d "${x}"
-		then
-			echo "Directory ${x} does not exist."
-			echo "If you still want to use it, please make it manually."
-			continue
-		fi
-		
-		def_home_dir="${x}"
-		return
-	done
-}
-
-read_shell () {
-	local x
-
-	echo
-	while :
-	do
-		echo -n "Shell: [${def_shell}] "
-		read shell
-		
-		if test -z "${shell}"
-		then
-			shell="${def_shell}"
-			echo "Using ${shell}"
-		fi
-		
-		for x in $(cat /etc/shells)
-		do
-			if test "${x}" = "${shell}"
-			then
-				def_shell="${shell}"
-				return
-			fi
-		done
-
-		echo "Possible shells are:"
-		cat /etc/shells
-	done
-}
-
-read_group () {
-	echo
-	while :
-	do
-		echo -n "Group: [${def_group}] "
-		read group
-		
-		if test -z "${group}"
-		then
-			group="${def_group}"
-			echo "Using ${group}"
-		fi
-		
-		if test "${group}" = '?'
-		then
-			less /etc/group
-			echo
-			continue
-		fi
-
-		if check_group "${group}"
-		then
-			echo "Group ${group} does not exist."
-			continue
-		fi
-		
-		def_group="${group}"
-		return
-	done
-}
-
-read_other_groups () {
-	echo
-	while :
-	do
-		echo -n "Other groups: [${def_og:-none}] "
-		read other_groups
-		
-		if test "${other_groups}" = '?'
-		then
-			less /etc/group
-			echo
-			continue
-		fi
-
-		if test -z "${other_groups}"
-		then
-			if test -n "${def_og}"
-			then
-				other_groups="${def_og}"
-				echo "Using ${other_groups}"
-			else	
-				echo "No other groups"
-				return
-			fi
-		fi
-		
-		
-		if ! check_other_groups "${other_groups}"
-		then
-			continue
-		fi
-		
-		def_og="${other_groups}"
-		return
-	done
-}
-
-read_uid () {
-	echo
-	while :
-	do
-		echo -n "uid: [first free] "
-		read uid
-			
-		if test -z "${uid}"
-		then
-			echo "Using first free UID."
-			return
-		fi
-		
-		if test "${uid}" = '?'
-		then
-			less /etc/passwd
-			echo
-			continue
-		fi
-
-		if ! expr "${uid}" : '^[0-9]+$' &> /dev/null
-		then
-			echo "Please use numbers only."
-			continue
-		fi
-		if test "${uid}" -lt "${uid_low}"
-		then
-			echo "UID must be greater than ${uid_low}"
-			continue
-		fi
-		if test "${uid}" -gt "${uid_high}"
-		then
-			echo "UID must be smaller than ${uid_high}"
-			continue
-		fi
-		if ! check_uid "${uid}"
-		then
-			echo "UID ${uid} is already in use"
-			continue
-		fi
-		
-		return
-	done
-}
-
-read_max_valid_days() {
-	echo
-	while :
-	do
-		echo -en "Maximum days between password changes: [${def_pwd_max}] "
-		read max_days
-		
-		if test -z "${max_days}"
-		then
-			max_days="${def_pwd_max}"
-			echo "Using ${max_days}"
-			return
-		fi
-		
-		if ! expr "${max_days}" : '^[0-9]+$' &> /dev/null
-		then
-			echo "Please use numbers only."
-			continue
-		fi
-		if test "${max_days}" -lt 7
-		then
-			echo "Warning: you are using a value shorter than a week."
-		fi
-		
-		def_pwd_max="${max_days}"
-		return	
-	done
-}
-
-read_min_valid_days() {
-	echo
-	while :
-	do
-		echo -en "Minimum days between password changes: [${def_pwd_min}] "
-		read min_days
-		
-		if test -z "${min_days}"
-		then
-			min_days="${def_pwd_min}"
-			echo "Using ${min_days}"
-			return
-		fi
-		
-		if ! expr "${min_days}" : '^[0-9]+$' &> /dev/null
-		then
-			echo "Please use numbers only."
-			continue
-		fi
-		if test "${min_days}" -gt 7
-		then
-			echo "Warning: you are using a value longer than a week."
-		fi
-		
-		def_pwd_min="${min_days}"
-		return	
-	done
-}
-
-read_warning_days() {
-	echo
-	while :
-	do
-		echo -en "Number of warning days before password expires: [${def_pwd_warn}] "
-		read warn_days
-		
-		if test -z "${warn_days}"
-		then
-			warn_days="${def_pwd_warn}"
-			echo "Using ${warn_days}"
-		fi
-
-		if ! expr "${warn_days}" : '^[0-9]+$' &> /dev/null
-		then
-			echo "Please use numbers only."
-			continue
-		fi
-		if test "${warn_days}" -gt 14
-		then
-			echo "Warning: you are using a value longer than two week."
-		fi
-		
-		def_pwd_warn="${warn_days}"
-		return	
-	done
-}
-
-
-read_inactive_days() {
-	echo
-	while :
-	do
-		echo -en "Number of usable days after expiration: [${def_pwd_iact}] "
-		read iact_days
-		
-		if test -z "${iact_days}"
-		then
-			iact_days="${def_pwd_iact}"
-			echo "Using ${iact_days}"
-			return
-		fi
-		if ! expr "${iact_days}" : '^[0-9]+$' &> /dev/null
-		then
-			echo "Please use numbers only."
-			continue
-		fi
-		if test "${iact_days}" -gt 14
-		then
-			echo "Warning: you are using a value that is more than two weeks."
-		fi
-		
-		def_pwd_iact="${iact_days}"
-		return	
-	done
-}
-
-read_expire_date() {
-	local ans
-	
-	echo
-	while :
-	do
-		echo -en "Expire date of this account (mm/dd/yy): [${def_expire:-never}] "
-		read ans
-		
-		if test -z "${ans}"
-		then
-			if test -z "${def_expire}"
-			then
-				ans="never"
-			else
-				ans="${def_expire}"
-				echo "Using ${def_expire}"
-			fi
-		fi
-		
-		if test "${ans}" = "never"
-		then
-			echo "Account will never expire."
-			def_expire=""
-			expire=""
-			return
-		fi
-
-		if ! expr "${ans}" : '^[0-9][0-9]/[0-9][0-9]/[0-9][0-9]$' &> /dev/null
-		then
-			echo "Please use format mm/dd/yy"
-			continue
-		fi
-		
-		if ! expire_date="$(date -d ${ans} '+%A, %B %d %Y')"
-		then
-			continue
-		fi
-		
-		def_expire="${expire}"
-		return	
-	done
-}
-
-read_passwd_yn() {
-	echo -en "\nDo you want to set password [Y/n] ? "
-	if read_yn 0
-	then
-		set_pwd="YES"
-	else
-		set_pwd=""
-	fi
-}
-
-
-print_values() {
-
-clear
-cat << EOM
-
-Login:        ${S}${login}${E}
-Group:        ${S}${group}${E}
-Other groups: ${S}${other_groups:-[none]}${E}
-
-Real Name:    ${S}${name}${E}
-
-uid:          ${S}${uid:-[first free]}${E}
-home:         ${S}${home}${E}
-shell:        ${S}${shell}${E}
-
-Account expiration date:                   ${S}${expire_date:-never}${E}
-Minimum days between password changes:     ${S}${min_days}${E}
-Maximum days between password changes:     ${S}${max_days}${E}
-Number of usable days after expiration:    ${S}${iact_days}${E}
-Number of warning days before expiration:  ${S}${warn_days}${E}
-
-${S}${set_pwd:+Set password for this account.}${E}
-
-EOM
-}
-
-set_user() {
-	if ! useradd \
-		-c "${name}" \
-		-d "${home}" \
-		-g "${group}" \
-		-s "${shell}" \
-		${expire:+-e ${expire}} \
-		${uid:+-u ${uid}} \
-		${other_groups:+-G ${other_groups}} \
-		${login}
-	then
-		echo "Error ($?) in useradd...exiting..."
-		exit 1
-	fi
-}
-
-set_aging() {
-	if ! passwd \
-		-x ${max_days} \
-		-n ${min_days} \
-		-w ${warn_days} \
-		-i ${iact_days} \
-		${login}
-	then
-		echo "Error ($?) in setting password aging...exiting..." 
-		exit 1
-	fi
-}
-
-set_password() {
-	if test -n "${set_pwd}"
-	then
-		echo
-		passwd ${login}
-		echo
-	fi
-}	
-
-set_system() {
-	if test -d "${home}"
-	then
-		echo "Directory ${home} already exists."
-		echo "Skeleton files not copied."
-		return
-	fi
-	
-	echo -n "Copying skeleton files..."
-	( 
-	  mkdir ${home}
-	  cd ${skel} && cp -af . ${home}
-	  chmod ${def_mode} ${home}
-	  chown -R ${login}:${group} ${home}
-	)
-	echo "done."
-
-	## Add your own stuff here:
-	echo -n "Setting up other files..."
-	(
-	  mailbox="/var/spool/mail/${login}"
-	  touch ${mailbox}
-	  chown "${login}:mail" ${mailbox}
-	  chmod 600 ${mailbox}
-	)
-	echo "done."
-}
-
-
-read_values() {
-	clear
-	echo -e "\nPlease answer the following questions about the new user to be added."
-	
-	while :
-	do
-		read_login
-		read_name
-		read_group
-		read_other_groups
-		read_home
-		read_shell
-		read_uid
-		read_expire_date
-		read_max_valid_days
-		read_min_valid_days
-		read_warning_days
-		read_inactive_days
-		read_passwd_yn
-
-		print_values
-		
-		echo -n "Is this correct [N/y] ? "
-		read_yn 1 && return
-	done
-}
-
-
-main() {
-	check_root
-	read_values
-	set_user
-	set_aging
-	set_system
-	set_password
-}
-
-
-## Run it 8-)
-main
-
-# End.
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -161,6 +161,7 @@ EGREP = @EGREP@
 ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@
 GMSGFMT = @GMSGFMT@
 GMSGFMT_015 = @GMSGFMT_015@
@@ -251,8 +252,6 @@ XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@
 XMLCATALOG = @XMLCATALOG@
 XML_CATALOG_FILE = @XML_CATALOG_FILE@
 XSLTPROC = @XSLTPROC@
-YACC = @YACC@
-YFLAGS = @YFLAGS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
--- a/etc/Makefile.in
+++ b/etc/Makefile.in
@@ -250,6 +250,7 @@ EGREP = @EGREP@
 ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@
 GMSGFMT = @GMSGFMT@
 GMSGFMT_015 = @GMSGFMT_015@
@@ -340,8 +341,6 @@ XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@
 XMLCATALOG = @XMLCATALOG@
 XML_CATALOG_FILE = @XML_CATALOG_FILE@
 XSLTPROC = @XSLTPROC@
-YACC = @YACC@
-YFLAGS = @YFLAGS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
--- a/etc/pam.d/Makefile.in
+++ b/etc/pam.d/Makefile.in
@@ -193,6 +193,7 @@ EGREP = @EGREP@
 ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@
 GMSGFMT = @GMSGFMT@
 GMSGFMT_015 = @GMSGFMT_015@
@@ -283,8 +284,6 @@ XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@
 XMLCATALOG = @XMLCATALOG@
 XML_CATALOG_FILE = @XML_CATALOG_FILE@
 XSLTPROC = @XSLTPROC@
-YACC = @YACC@
-YFLAGS = @YFLAGS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
--- a/etc/shadow-maint/Makefile.in
+++ b/etc/shadow-maint/Makefile.in
@@ -158,6 +158,7 @@ EGREP = @EGREP@
 ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@
 GMSGFMT = @GMSGFMT@
 GMSGFMT_015 = @GMSGFMT_015@
@@ -248,8 +249,6 @@ XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@
 XMLCATALOG = @XMLCATALOG@
 XML_CATALOG_FILE = @XML_CATALOG_FILE@
 XSLTPROC = @XSLTPROC@
-YACC = @YACC@
-YFLAGS = @YFLAGS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -59,12 +59,8 @@ libshadow_la_SOURCES = \
 	atoi/a2i/a2u_nc.h \
 	atoi/getnum.c \
 	atoi/getnum.h \
-	atoi/str2i/str2i.c \
-	atoi/str2i/str2i.h \
-	atoi/str2i/str2s.c \
-	atoi/str2i/str2s.h \
-	atoi/str2i/str2u.c \
-	atoi/str2i/str2u.h \
+	atoi/str2i.c \
+	atoi/str2i.h \
 	atoi/strtoi/strtoi.c \
 	atoi/strtoi/strtoi.h \
 	atoi/strtoi/strtou.c \
@@ -98,18 +94,21 @@ libshadow_la_SOURCES = \
 	failure.h \
 	fd.c \
 	fields.c \
+	fields.h \
 	find_new_gid.c \
 	find_new_uid.c \
 	find_new_sub_gids.c \
 	find_new_sub_uids.c \
 	fputsx.c \
+	fs/mkstemp/fmkomstemp.c \
+	fs/mkstemp/fmkomstemp.h \
+	fs/mkstemp/mkomstemp.c \
+	fs/mkstemp/mkomstemp.h \
 	fs/readlink/areadlink.c \
 	fs/readlink/areadlink.h \
 	fs/readlink/readlinknul.c \
 	fs/readlink/readlinknul.h \
 	get_pid.c \
-	getdate.h \
-	getdate.y \
 	getdef.c \
 	getdef.h \
 	getgr_nam_gid.c \
@@ -129,7 +128,6 @@ libshadow_la_SOURCES = \
 	loginprompt.c \
 	mail.c \
 	motd.c \
-	must_be.h \
 	myname.c \
 	nss.c \
 	nscd.c \
@@ -172,7 +170,6 @@ libshadow_la_SOURCES = \
 	sgetspent.c \
 	sgroupio.c \
 	sgroupio.h\
-	shadow.c \
 	shadow/grp/agetgroups.c \
 	shadow/grp/agetgroups.h \
 	shadowio.c \
@@ -186,16 +183,24 @@ libshadow_la_SOURCES = \
 	spawn.c \
 	sssd.c \
 	sssd.h \
+	string/ctype/strchrisascii/strchriscntrl.c \
+	string/ctype/strchrisascii/strchriscntrl.h \
 	string/ctype/strisascii/strisdigit.c \
 	string/ctype/strisascii/strisdigit.h \
+	string/ctype/strisascii/strisprint.c \
+	string/ctype/strisascii/strisprint.h \
+	string/ctype/strtoascii/strtolower.c \
+	string/ctype/strtoascii/strtolower.h \
 	string/memset/memzero.c \
 	string/memset/memzero.h \
+	string/sprintf/aprintf.c \
+	string/sprintf/aprintf.h \
 	string/sprintf/snprintf.c \
 	string/sprintf/snprintf.h \
 	string/sprintf/stpeprintf.c \
 	string/sprintf/stpeprintf.h \
-	string/sprintf/xasprintf.c \
-	string/sprintf/xasprintf.h \
+	string/sprintf/xaprintf.c \
+	string/sprintf/xaprintf.h \
 	string/strchr/strchrcnt.c \
 	string/strchr/strchrcnt.h \
 	string/strchr/strchrscnt.c \
@@ -204,8 +209,12 @@ libshadow_la_SOURCES = \
 	string/strchr/strnul.h \
 	string/strcmp/strcaseeq.c \
 	string/strcmp/strcaseeq.h \
+	string/strcmp/strcaseprefix.c \
+	string/strcmp/strcaseprefix.h \
 	string/strcmp/streq.c \
 	string/strcmp/streq.h \
+	string/strcmp/strprefix.c \
+	string/strcmp/strprefix.h \
 	string/strcpy/stpecpy.c \
 	string/strcpy/stpecpy.h \
 	string/strcpy/strncat.c \
@@ -234,6 +243,14 @@ libshadow_la_SOURCES = \
 	string/strspn/strrspn.h \
 	string/strtok/stpsep.c \
 	string/strtok/stpsep.h \
+	string/strtok/astrsep2ls.c \
+	string/strtok/astrsep2ls.h \
+	string/strtok/strsep2arr.c \
+	string/strtok/strsep2arr.h \
+	string/strtok/strsep2ls.c \
+	string/strtok/strsep2ls.h \
+	string/strtok/xastrsep2ls.c \
+	string/strtok/xastrsep2ls.h \
 	strtoday.c \
 	sub.c \
 	subordinateio.h \
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
--- a/lib/adds.h
+++ b/lib/adds.h
@@ -20,7 +20,7 @@
 ({                                                                            \
 	long  addend_[] = {a, b, __VA_ARGS__};                                \
                                                                              \
-	addslN(NITEMS(addend_), addend_);                                     \
+	addslN(countof(addend_), addend_);                                    \
 })


--- a/lib/atoi/a2i/a2s.h
+++ b/lib/atoi/a2i/a2s.h
@@ -8,49 +8,13 @@

 #include <config.h>

-#include "atoi/a2i/a2s_c.h"
-#include "atoi/a2i/a2s_nc.h"
+#include "atoi/a2i/a2i.h"


-#define a2sh(n, s, ...)                                                       \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2sh_c,                                        \
-		const void *:  a2sh_c,                                        \
-		char *:        a2sh_nc,                                       \
-		void *:        a2sh_nc                                        \
-	)(n, s, __VA_ARGS__)                                                  \
-)
-
-#define a2si(n, s, ...)                                                       \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2si_c,                                        \
-		const void *:  a2si_c,                                        \
-		char *:        a2si_nc,                                       \
-		void *:        a2si_nc                                        \
-	)(n, s, __VA_ARGS__)                                                  \
-)
-
-#define a2sl(n, s, ...)                                                       \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2sl_c,                                        \
-		const void *:  a2sl_c,                                        \
-		char *:        a2sl_nc,                                       \
-		void *:        a2sl_nc                                        \
-	)(n, s, __VA_ARGS__)                                                  \
-)
-
-#define a2sll(n, s, ...)                                                      \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2sll_c,                                       \
-		const void *:  a2sll_c,                                       \
-		char *:        a2sll_nc,                                      \
-		void *:        a2sll_nc                                       \
-	)(n, s, __VA_ARGS__)                                                  \
-)
+#define a2sh(...)   a2i(short, __VA_ARGS__)
+#define a2si(...)   a2i(int, __VA_ARGS__)
+#define a2sl(...)   a2i(long, __VA_ARGS__)
+#define a2sll(...)  a2i(long long, __VA_ARGS__)


 #endif  // include guard
--- a/lib/atoi/a2i/a2u.h
+++ b/lib/atoi/a2i/a2u.h
@@ -8,49 +8,13 @@

 #include <config.h>

-#include "atoi/a2i/a2u_c.h"
-#include "atoi/a2i/a2u_nc.h"
+#include "atoi/a2i/a2i.h"


-#define a2uh(n, s, ...)                                                       \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2uh_c,                                        \
-		const void *:  a2uh_c,                                        \
-		char *:        a2uh_nc,                                       \
-		void *:        a2uh_nc                                        \
-	)(n, s, __VA_ARGS__)                                                  \
-)
-
-#define a2ui(n, s, ...)                                                       \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2ui_c,                                        \
-		const void *:  a2ui_c,                                        \
-		char *:        a2ui_nc,                                       \
-		void *:        a2ui_nc                                        \
-	)(n, s, __VA_ARGS__)                                                  \
-)
-
-#define a2ul(n, s, ...)                                                       \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2ul_c,                                        \
-		const void *:  a2ul_c,                                        \
-		char *:        a2ul_nc,                                       \
-		void *:        a2ul_nc                                        \
-	)(n, s, __VA_ARGS__)                                                  \
-)
-
-#define a2ull(n, s, ...)                                                      \
-(                                                                             \
-	_Generic(s,                                                           \
-		const char *:  a2ull_c,                                       \
-		const void *:  a2ull_c,                                       \
-		char *:        a2ull_nc,                                      \
-		void *:        a2ull_nc                                       \
-	)(n, s, __VA_ARGS__)                                                  \
-)
+#define a2uh(...)   a2i(unsigned short, __VA_ARGS__)
+#define a2ui(...)   a2i(unsigned int, __VA_ARGS__)
+#define a2ul(...)   a2i(unsigned long, __VA_ARGS__)
+#define a2ull(...)  a2i(unsigned long long, __VA_ARGS__)


 #endif  // include guard
--- a/lib/atoi/str2i/str2i.c
+++ b/lib/atoi/str2i/str2i.c
@@ -1,8 +1,8 @@
 // SPDX-FileCopyrightText: 2007-2009, Nicolas François
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-FileCopyrightText: 2023-2025, Alejandro Colomar <alx@kernel.org>
 // SPDX-License-Identifier: BSD-3-Clause


 #include <config.h>

-#include "atoi/str2i/str2i.h"
+#include "atoi/str2i.h"
--- a/lib/atoi/str2i.h
+++ b/lib/atoi/str2i.h
@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: 2007-2009, Nicolas François
+// SPDX-FileCopyrightText: 2023-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_ATOI_STR2I_H_
+#define SHADOW_INCLUDE_LIB_ATOI_STR2I_H_
+
+
+#include <config.h>
+
+#include <stddef.h>
+
+#include "atoi/a2i/a2i.h"
+#include "typetraits.h"
+
+
+#define str2i(T, ...)  a2i(T, __VA_ARGS__, NULL, 0, type_min(T), type_max(T))
+
+#define str2sh(...)    str2i(short, __VA_ARGS__)
+#define str2si(...)    str2i(int, __VA_ARGS__)
+#define str2sl(...)    str2i(long, __VA_ARGS__)
+#define str2sll(...)   str2i(long long, __VA_ARGS__)
+
+#define str2uh(...)    str2i(unsigned short, __VA_ARGS__)
+#define str2ui(...)    str2i(unsigned int, __VA_ARGS__)
+#define str2ul(...)    str2i(unsigned long, __VA_ARGS__)
+#define str2ull(...)   str2i(unsigned long long, __VA_ARGS__)
+
+
+#endif  // include guard
--- a/lib/atoi/str2i/str2i.h
+++ b/lib/atoi/str2i/str2i.h
@@ -1,31 +0,0 @@
-// SPDX-FileCopyrightText: 2007-2009, Nicolas François
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#ifndef SHADOW_INCLUDE_LIB_ATOI_STR2I_STR2I_H_
-#define SHADOW_INCLUDE_LIB_ATOI_STR2I_STR2I_H_
-
-
-#include <config.h>
-
-#include "atoi/str2i/str2s.h"
-#include "atoi/str2i/str2u.h"
-
-
-#define str2i(TYPE, ...)                                                      \
-(                                                                             \
-	_Generic((TYPE) 0,                                                    \
-		short:              str2sh,                                   \
-		int:                str2si,                                   \
-		long:               str2sl,                                   \
-		long long:          str2sll,                                  \
-		unsigned short:     str2uh,                                   \
-		unsigned int:       str2ui,                                   \
-		unsigned long:      str2ul,                                   \
-		unsigned long long: str2ull                                   \
-	)(__VA_ARGS__)                                                        \
-)
-
-
-#endif  // include guard
--- a/lib/atoi/str2i/str2s.c
+++ b/lib/atoi/str2i/str2s.c
@@ -1,14 +0,0 @@
-// SPDX-FileCopyrightText: 2007-2009, Nicolas François
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#include <config.h>
-
-#include "atoi/str2i/str2s.h"
-
-
-extern inline int str2sh(short *restrict n, const char *restrict s);
-extern inline int str2si(int *restrict n, const char *restrict s);
-extern inline int str2sl(long *restrict n, const char *restrict s);
-extern inline int str2sll(long long *restrict n, const char *restrict s);
--- a/lib/atoi/str2i/str2s.h
+++ b/lib/atoi/str2i/str2s.h
@@ -1,57 +0,0 @@
-// SPDX-FileCopyrightText: 2007-2009, Nicolas François
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#ifndef SHADOW_INCLUDE_LIB_ATOI_STR2I_STR2S_H_
-#define SHADOW_INCLUDE_LIB_ATOI_STR2I_STR2S_H_
-
-
-#include <config.h>
-
-#include <limits.h>
-#include <stddef.h>
-
-#include "atoi/a2i/a2s.h"
-#include "attr.h"
-
-
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2sh(short *restrict n, const char *restrict s);
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2si(int *restrict n, const char *restrict s);
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2sl(long *restrict n, const char *restrict s);
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2sll(long long *restrict n, const char *restrict s);
-
-
-inline int
-str2sh(short *restrict n, const char *restrict s)
-{
-	return a2sh(n, s, NULL, 0, SHRT_MIN, SHRT_MAX);
-}
-
-
-inline int
-str2si(int *restrict n, const char *restrict s)
-{
-	return a2si(n, s, NULL, 0, INT_MIN, INT_MAX);
-}
-
-
-inline int
-str2sl(long *restrict n, const char *restrict s)
-{
-	return a2sl(n, s, NULL, 0, LONG_MIN, LONG_MAX);
-}
-
-
-inline int
-str2sll(long long *restrict n, const char *restrict s)
-{
-	return a2sll(n, s, NULL, 0, LLONG_MIN, LLONG_MAX);
-}
-
-
-#endif  // include guard
--- a/lib/atoi/str2i/str2u.c
+++ b/lib/atoi/str2i/str2u.c
@@ -1,14 +0,0 @@
-// SPDX-FileCopyrightText: 2007-2009, Nicolas François
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#include <config.h>
-
-#include "atoi/str2i/str2u.h"
-
-
-extern inline int str2uh(unsigned short *restrict n, const char *restrict s);
-extern inline int str2ui(unsigned int *restrict n, const char *restrict s);
-extern inline int str2ul(unsigned long *restrict n, const char *restrict s);
-extern inline int str2ull(unsigned long long *restrict n, const char *restrict s);
--- a/lib/atoi/str2i/str2u.h
+++ b/lib/atoi/str2i/str2u.h
@@ -1,57 +0,0 @@
-// SPDX-FileCopyrightText: 2007-2009, Nicolas François
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#ifndef SHADOW_INCLUDE_LIB_ATOI_STR2I_STR2U_H_
-#define SHADOW_INCLUDE_LIB_ATOI_STR2I_STR2U_H_
-
-
-#include <config.h>
-
-#include <limits.h>
-#include <stddef.h>
-
-#include "atoi/a2i/a2u.h"
-#include "attr.h"
-
-
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2uh(unsigned short *restrict n, const char *restrict s);
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2ui(unsigned int *restrict n, const char *restrict s);
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2ul(unsigned long *restrict n, const char *restrict s);
-ATTR_STRING(2) ATTR_ACCESS(write_only, 1)
-inline int str2ull(unsigned long long *restrict n, const char *restrict s);
-
-
-inline int
-str2uh(unsigned short *restrict n, const char *restrict s)
-{
-	return a2uh(n, s, NULL, 0, 0, USHRT_MAX);
-}
-
-
-inline int
-str2ui(unsigned int *restrict n, const char *restrict s)
-{
-	return a2ui(n, s, NULL, 0, 0, UINT_MAX);
-}
-
-
-inline int
-str2ul(unsigned long *restrict n, const char *restrict s)
-{
-	return a2ul(n, s, NULL, 0, 0, ULONG_MAX);
-}
-
-
-inline int
-str2ull(unsigned long long *restrict n, const char *restrict s)
-{
-	return a2ull(n, s, NULL, 0, 0, ULLONG_MAX);
-}
-
-
-#endif  // include guard
--- a/lib/audit_help.c
+++ b/lib/audit_help.c
@@ -25,6 +25,8 @@
 #include "attr.h"
 #include "prototypes.h"
 #include "shadowlog.h"
+#include "string/sprintf/snprintf.h"
+
 int audit_fd;

 void audit_help_open (void)
@@ -46,10 +48,14 @@ void audit_help_open (void)

 /*
 * This function will log a message to the audit system using a predefined
- * message format. Parameter usage is as follows:
+ * message format. For additional information on the user account lifecycle
+ * events check
+ * <https://github.com/linux-audit/audit-documentation/wiki/SPEC-User-Account-Lifecycle-Events>
 *
- * type - type of message: AUDIT_USER_CHAUTHTOK for changing any account
- *	  attributes.
+ * Parameter usage is as follows:
+ *
+ * type - type of message. A list of possible values is available in
+ *        "audit-records.h" file.
 * pgname - program's name
 * op  -  operation. "adding user", "changing finger info", "deleting group"
 * name - user's account or group name. If not available use NULL.
@@ -68,6 +74,47 @@ void audit_logger (int type, MAYBE_UNUSED const char *pgname, const char *op,
 	}
 }

+/*
+ * This function will log a message to the audit system using a predefined
+ * message format. For additional information on the group account lifecycle
+ * events check
+ * <https://github.com/linux-audit/audit-documentation/wiki/SPEC-User-Account-Lifecycle-Events>
+ *
+ * Parameter usage is as follows:
+ *
+ * type - type of message. A list of possible values is available in
+ *        "audit-records.h" file.
+ * op  -  operation. "adding-user", "modify-group", "deleting-user-from-group"
+ * name - user's account or group name. If not available use NULL.
+ * id  -  uid or gid that the operation is being performed on. This is used
+ *	  only when user is NULL.
+ * grp_type - type of group: "grp" or "new_group"
+ * grp - group name associated with event
+ */
+void
+audit_logger_with_group(int type, const char *op, const char *name,
+    id_t id, const char *grp_type, const char *grp,
+    shadow_audit_result result)
+{
+	int len;
+	char enc_group[GROUP_NAME_MAX_LENGTH * 2 + 1];
+	char buf[countof(enc_group) + 100];
+
+	if (audit_fd < 0)
+		return;
+
+	len = strnlen(grp, sizeof(enc_group)/2);
+	if (audit_value_needs_encoding(grp, len)) {
+		SNPRINTF(buf, "%s %s=%s", op, grp_type,
+			audit_encode_value(enc_group, grp, len));
+	} else {
+		SNPRINTF(buf, "%s %s=\"%s\"", op, grp_type, grp);
+	}
+
+	audit_log_acct_message(audit_fd, type, NULL, buf, name, id,
+		               NULL, NULL, NULL, result);
+}
+
 void audit_logger_message (const char *message, shadow_audit_result result)
 {
 	if (audit_fd < 0) {
--- a/lib/cleanup_group.c
+++ b/lib/cleanup_group.c
@@ -62,7 +62,7 @@ void cleanup_report_mod_group (void *cleanup_info)
 	         gr_dbname (),
 	         info->action));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_USER_ACCT, log_get_progname(),
+	audit_logger (AUDIT_GRP_MGMT, log_get_progname(),
 	              info->audit_msg,
 	              info->name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
@@ -80,7 +80,7 @@ void cleanup_report_mod_gshadow (void *cleanup_info)
 	         sgr_dbname (),
 	         info->action));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_USER_ACCT, log_get_progname(),
+	audit_logger (AUDIT_GRP_MGMT, log_get_progname(),
 	              info->audit_msg,
 	              info->name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
@@ -101,7 +101,7 @@ void cleanup_report_add_group_group (void *group_name)
 	SYSLOG ((LOG_ERR, "failed to add group %s to %s", name, gr_dbname ()));
 #ifdef WITH_AUDIT
 	audit_logger (AUDIT_ADD_GROUP, log_get_progname(),
-	              "adding group to /etc/group",
+	              "adding-group",
 	              name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
 #endif
@@ -120,8 +120,8 @@ void cleanup_report_add_group_gshadow (void *group_name)

 	SYSLOG ((LOG_ERR, "failed to add group %s to %s", name, sgr_dbname ()));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_ADD_GROUP, log_get_progname(),
-	              "adding group to /etc/gshadow",
+	audit_logger (AUDIT_GRP_MGMT, log_get_progname(),
+	              "adding-shadow-group",
 	              name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
 #endif
@@ -143,8 +143,8 @@ void cleanup_report_del_group_group (void *group_name)
 	         "failed to remove group %s from %s",
 	         name, gr_dbname ()));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_ADD_GROUP, log_get_progname(),
-	              "removing group from /etc/group",
+	audit_logger (AUDIT_DEL_GROUP, log_get_progname(),
+	              "removing-group",
 	              name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
 #endif
@@ -166,8 +166,8 @@ void cleanup_report_del_group_gshadow (void *group_name)
 	         "failed to remove group %s from %s",
 	         name, sgr_dbname ()));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_ADD_GROUP, log_get_progname(),
-	              "removing group from /etc/gshadow",
+	audit_logger (AUDIT_GRP_MGMT, log_get_progname(),
+	              "removing-shadow-group",
 	              name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
 #endif
@@ -187,7 +187,7 @@ void cleanup_unlock_group (MAYBE_UNUSED void *arg)
 		         log_get_progname(), gr_dbname ());
 		SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ()));
 #ifdef WITH_AUDIT
-		audit_logger_message ("unlocking group file",
+		audit_logger_message ("unlocking-group",
 		                      SHADOW_AUDIT_FAILURE);
 #endif
 	}
@@ -207,7 +207,7 @@ void cleanup_unlock_gshadow (MAYBE_UNUSED void *arg)
 		         log_get_progname(), sgr_dbname ());
 		SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ()));
 #ifdef WITH_AUDIT
-		audit_logger_message ("unlocking gshadow file",
+		audit_logger_message ("unlocking-gshadow",
 		                      SHADOW_AUDIT_FAILURE);
 #endif
 	}
--- a/lib/cleanup_user.c
+++ b/lib/cleanup_user.c
@@ -44,7 +44,7 @@ void cleanup_report_mod_passwd (void *cleanup_info)
 	         pw_dbname (),
 	         info->action));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_USER_ACCT, log_get_progname(),
+	audit_logger (AUDIT_USER_MGMT, log_get_progname(),
 	              info->audit_msg,
 	              info->name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
@@ -65,7 +65,7 @@ void cleanup_report_add_user_passwd (void *user_name)
 	SYSLOG ((LOG_ERR, "failed to add user %s to %s", name, pw_dbname ()));
 #ifdef WITH_AUDIT
 	audit_logger (AUDIT_ADD_USER, log_get_progname(),
-	              "adding user to /etc/passwd",
+	              "adding-user",
 	              name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
 #endif
@@ -84,8 +84,8 @@ void cleanup_report_add_user_shadow (void *user_name)

 	SYSLOG ((LOG_ERR, "failed to add user %s to %s", name, spw_dbname ()));
 #ifdef WITH_AUDIT
-	audit_logger (AUDIT_ADD_USER, log_get_progname(),
-	              "adding user to /etc/shadow",
+	audit_logger (AUDIT_USER_MGMT, log_get_progname(),
+	              "adding-shadow-user",
 	              name, AUDIT_NO_ID,
 	              SHADOW_AUDIT_FAILURE);
 #endif
@@ -104,7 +104,7 @@ void cleanup_unlock_passwd (MAYBE_UNUSED void *arg)
 		         log_get_progname(), pw_dbname ());
 		SYSLOG ((LOG_ERR, "failed to unlock %s", pw_dbname ()));
 #ifdef WITH_AUDIT
-		audit_logger_message ("unlocking passwd file",
+		audit_logger_message ("unlocking-passwd",
 		                      SHADOW_AUDIT_FAILURE);
 #endif
 	}
@@ -123,7 +123,7 @@ void cleanup_unlock_shadow (MAYBE_UNUSED void *arg)
 		         log_get_progname(), spw_dbname ());
 		SYSLOG ((LOG_ERR, "failed to unlock %s", spw_dbname ()));
 #ifdef WITH_AUDIT
-		audit_logger_message ("unlocking shadow file",
+		audit_logger_message ("unlocking-shadow",
 		                      SHADOW_AUDIT_FAILURE);
 #endif
 	}
--- a/lib/commonio.c
+++ b/lib/commonio.c
@@ -35,8 +35,10 @@
 #include "shadowlog_internal.h"
 #include "sssd.h"
 #include "string/memset/memzero.h"
+#include "string/sprintf/aprintf.h"
 #include "string/sprintf/snprintf.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strtok/stpsep.h"


@@ -74,17 +76,10 @@ int lrename (const char *old, const char *new)
 {
 	int res;
 	char *r = NULL;
-
-#ifndef __GLIBC__
-	char resolved_path[PATH_MAX];
-#endif				/* !__GLIBC__ */
 	struct stat sb;
+
 	if (lstat (new, &sb) == 0 && S_ISLNK (sb.st_mode)) {
-#ifdef __GLIBC__ /* now a POSIX.1-2008 feature */
 		r = realpath (new, NULL);
-#else				/* !__GLIBC__ */
-		r = realpath (new, resolved_path);
-#endif				/* !__GLIBC__ */
 		if (NULL == r) {
 			perror ("realpath in lrename()");
 		} else {
@@ -94,9 +89,7 @@ int lrename (const char *old, const char *new)

 	res = rename (old, new);

-#ifdef __GLIBC__
 	free (r);
-#endif				/* __GLIBC__ */

 	return res;
 }
@@ -369,9 +362,12 @@ int commonio_lock_nowait (struct commonio_db *db, bool log)
 		return 1;
 	}

-	if (asprintf(&file, "%s.%ju", db->filename, (uintmax_t) getpid()) == -1)
+	file = aprintf("%s.%ju", db->filename, (uintmax_t) getpid());
+	if (file == NULL)
 		goto cleanup_ENOMEM;
-	if (asprintf(&lock, "%s.lock", db->filename) == -1)
+
+	lock = aprintf("%s.lock", db->filename);
+	if (lock == NULL)
 		goto cleanup_ENOMEM;

 	if (do_lock_file (file, lock, log) != 0) {
@@ -524,7 +520,7 @@ static void add_one_entry (struct commonio_db *db,

 static bool name_is_nis (const char *name)
 {
-	return (('+' == name[0]) || ('-' == name[0]));
+	return strprefix(name, "+") || strprefix(name, "-");
 }


--- a/lib/console.c
+++ b/lib/console.c
@@ -17,6 +17,7 @@
 #include "getdef.h"
 #include "prototypes.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strcpy/strtcpy.h"
 #include "string/strtok/stpsep.h"

@@ -103,9 +104,7 @@ is_listed(const char *cfgin, const char *tty, bool def)

 bool console (const char *tty)
 {
-	if (strncmp (tty, "/dev/", 5) == 0) {
-		tty += 5;
-	}
+	tty = strprefix(tty, "/dev/") ?: tty;

 	return is_listed ("CONSOLE", tty, true);
 }
--- a/lib/copydir.c
+++ b/lib/copydir.c
@@ -38,8 +38,10 @@
 #include <attr/libattr.h>
 #endif				/* WITH_ATTR */
 #include "shadowlog.h"
-#include "string/sprintf/xasprintf.h"
+#include "string/sprintf/aprintf.h"
+#include "string/sprintf/xaprintf.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"


 static /*@null@*/const char *src_orig;
@@ -232,7 +234,7 @@ static /*@exposed@*/ /*@null@*/struct link_name *check_link (const char *name, c
 	lp->ln_dev = sb->st_dev;
 	lp->ln_ino = sb->st_ino;
 	lp->ln_count = sb->st_nlink;
-	xasprintf(&lp->ln_name, "%s%s", dst_orig, name + strlen(src_orig));
+	lp->ln_name = xaprintf("%s%s", dst_orig, name + strlen(src_orig));
 	lp->ln_next = links;
 	links = lp;

@@ -321,13 +323,13 @@ static int copy_tree_impl (const struct path_info *src, const struct path_info *
 			continue;
 		}

-		if (asprintf(&src_name, "%s/%s", src->full_path, ent->d_name) == -1)
-		{
+		src_name = aprintf("%s/%s", src->full_path, ent->d_name);
+		if (src_name == NULL) {
 			err = -1;
 			continue;
 		}
-		if (asprintf(&dst_name, "%s/%s", dst->full_path, ent->d_name) == -1)
-		{
+		dst_name = aprintf("%s/%s", dst->full_path, ent->d_name);
+		if (dst_name == NULL) {
 			err = -1;
 			goto skip;
 		}
@@ -576,10 +578,10 @@ static int copy_symlink (const struct path_info *src, const struct path_info *ds
 	 * create a link to the corresponding entry in the dst_orig
 	 * directory.
 	 */
-	if (strncmp(oldlink, src_orig, strlen(src_orig)) == 0) {
+	if (strprefix(oldlink, src_orig)) {
 		char  *dummy;

-		xasprintf(&dummy, "%s%s", dst_orig, oldlink + strlen(src_orig));
+		dummy = xaprintf("%s%s", dst_orig, oldlink + strlen(src_orig));
 		free(oldlink);
 		oldlink = dummy;
 	}
--- a/lib/defines.h
+++ b/lib/defines.h
@@ -65,6 +65,14 @@
 #endif
 #endif

+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN 64
+#endif
+
 #include <syslog.h>

 #ifndef LOG_WARN
--- a/lib/encrypt.c
+++ b/lib/encrypt.c
@@ -17,6 +17,8 @@
 #include "prototypes.h"
 #include "defines.h"
 #include "shadowlog_internal.h"
+#include "string/strcmp/strprefix.h"
+

 /*@exposed@*//*@null@*/char *pw_encrypt (const char *clear, const char *salt)
 {
@@ -35,7 +37,7 @@

 	/* Some crypt() do not return NULL if the algorithm is not
 	 * supported, and return a DES encrypted password. */
-	if ((NULL != salt) && (salt[0] == '$') && (strlen (cp) <= 13))
+	if ((NULL != salt) && strprefix(salt, "$") && (strlen (cp) <= 13))
 	{
 		/*@observer@*/const char *method;
 		switch (salt[1])
--- a/lib/env.c
+++ b/lib/env.c
@@ -22,7 +22,8 @@
 #include "defines.h"
 #include "shadowlog.h"
 #include "string/sprintf/snprintf.h"
-#include "string/sprintf/xasprintf.h"
+#include "string/sprintf/xaprintf.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strdup/xstrdup.h"


@@ -77,7 +78,7 @@ void addenv (const char *string, /*@null@*/const char *value)
 	size_t  i, n;

 	if (NULL != value) {
-		xasprintf(&newstring, "%s=%s", string, value);
+		newstring = xaprintf("%s=%s", string, value);
 	} else {
 		newstring = xstrdup (string);
 	}
@@ -175,7 +176,7 @@ void set_env (int argc, char *const *argv)
 			const char *const *p;

 			for (p = forbid; NULL != *p; p++) {
-				if (strncmp (*argv, *p, strlen (*p)) == 0) {
+				if (strprefix(*argv, *p)) {
 					break;
 				}
 			}
@@ -210,7 +211,7 @@ void sanitize_env (void)

 	for (cur = envp; NULL != *cur; cur++) {
 		for (bad = forbid; NULL != *bad; bad++) {
-			if (strncmp (*cur, *bad, strlen (*bad)) == 0) {
+			if (strprefix(*cur, *bad)) {
 				for (move = cur; NULL != *move; move++) {
 					*move = *(move + 1);
 				}
@@ -222,7 +223,7 @@ void sanitize_env (void)

 	for (cur = envp; NULL != *cur; cur++) {
 		for (bad = noslash; NULL != *bad; bad++) {
-			if (strncmp (*cur, *bad, strlen (*bad)) != 0) {
+			if (!strprefix(*cur, *bad)) {
 				continue;
 			}
 			if (strchr (*cur, '/') == NULL) {
--- a/lib/fields.c
+++ b/lib/fields.c
@@ -9,13 +9,15 @@

 #include <config.h>

-#ident "$Id$"
+#include "fields.h"

 #include <ctype.h>
 #include <string.h>
 #include <stdio.h>

 #include "prototypes.h"
+#include "string/ctype/strisascii/strisprint.h"
+#include "string/ctype/strchrisascii/strchriscntrl.h"
 #include "string/strcmp/streq.h"
 #include "string/strspn/stpspn.h"
 #include "string/strspn/stprspn.h"
@@ -25,41 +27,27 @@
 /*
 * valid_field - insure that a field contains all legal characters
 *
- * The supplied field is scanned for non-printable and other illegal
- * characters.
- *  + -1 is returned if an illegal or control character is present.
- *  +  1 is returned if no illegal or control characters are present,
- *       but the field contains a non-printable character.
- *  +  0 is returned otherwise.
+ * Return:
+ *	-1	Illegal or control characters are present.
+ *	1	Non-ASCII characters are present.
+ *	0	All chatacters are legal and ASCII.
 */
-int valid_field (const char *field, const char *illegal)
+int
+valid_field_(const char *field, const char *illegal)
 {
-	const char *cp;
-	int err = 0;
-
-	if (NULL == field) {
+	if (NULL == field)
 		return -1;
-	}

-	/* For each character of field, search if it appears in the list
-	 * of illegal characters. */
-	if (illegal && NULL != strpbrk (field, illegal)) {
+	if (strpbrk(field, illegal))
 		return -1;
-	}
+	if (strchriscntrl(field))
+		return -1;
+	if (strisprint(field))
+		return 0;
+	if (streq(field, ""))
+		return 0;

-	/* Search if there are non-printable or control characters */
-	for (cp = field; !streq(cp, ""); cp++) {
-		unsigned char c = *cp;
-		if (!isprint (c)) {
-			err = 1;
-		}
-		if (iscntrl (c)) {
-			err = -1;
-			break;
-		}
-	}
-
-	return err;
+	return 1;  // !ASCII
 }

 /*
--- a/lib/fields.h
+++ b/lib/fields.h
@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+#ifndef _SHADOW_INCLUDE_LIB_FIELDS_H_
+#define _SHADOW_INCLUDE_LIB_FIELDS_H_
+
+
+#include <config.h>
+
+#include <stddef.h>
+
+
+#define valid_field(field, illegal)  valid_field_(field, "" illegal "")
+
+
+int valid_field_(const char *field, const char *illegal);
+void change_field(char *buf, size_t maxsize, const char *prompt);
+
+
+#endif  // include guard
--- a/lib/fs/mkstemp/fmkomstemp.c
+++ b/lib/fs/mkstemp/fmkomstemp.c
@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "fs/mkstemp/fmkomstemp.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+
+
+extern inline FILE *fmkomstemp(char *template, unsigned int flags, mode_t m);
--- a/lib/fs/mkstemp/fmkomstemp.h
+++ b/lib/fs/mkstemp/fmkomstemp.h
@@ -0,0 +1,44 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_FS_MKSTEMP_FMKOMSTEMP_H_
+#define SHADOW_INCLUDE_LIB_FS_MKSTEMP_FMKOMSTEMP_H_
+
+
+#include <config.h>
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "fs/mkstemp/mkomstemp.h"
+
+
+inline FILE *fmkomstemp(char *template, unsigned int flags, mode_t m);
+
+
+// FILE make with-open(2)-flags with-mode secure temporary
+inline FILE *
+fmkomstemp(char *template, unsigned int flags, mode_t m)
+{
+	int   fd;
+	FILE  *fp;
+
+	fd = mkomstemp(template, flags, m);
+	if (fd == -1)
+		return NULL;
+
+	fp = fdopen(fd, "w");
+	if (fp == NULL)
+		goto fail;
+
+	return fp;
+fail:
+	close(fd);
+	unlink(template);
+	return NULL;
+}
+
+
+#endif  // include guard
--- a/lib/fs/mkstemp/mkomstemp.c
+++ b/lib/fs/mkstemp/mkomstemp.c
@@ -0,0 +1,12 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "fs/mkstemp/mkomstemp.h"
+
+#include <sys/types.h>
+
+
+extern inline int mkomstemp(char *template, unsigned int flags, mode_t m);
--- a/lib/fs/mkstemp/mkomstemp.h
+++ b/lib/fs/mkstemp/mkomstemp.h
@@ -0,0 +1,41 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_FS_MKSTEMP_MKOMSTEMP_H_
+#define SHADOW_INCLUDE_LIB_FS_MKSTEMP_MKOMSTEMP_H_
+
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+
+inline int mkomstemp(char *template, unsigned int flags, mode_t m);
+
+
+// make with-open(2)-like-flags with-mode secure temporary
+inline int
+mkomstemp(char *template, unsigned int flags, mode_t m)
+{
+	int  fd;
+
+	fd = mkostemp(template, flags);
+	if (fd == -1)
+		return -1;
+
+	if (fchmod(fd, m) == -1)
+		goto fail;
+
+	return fd;
+fail:
+	close(fd);
+	unlink(template);
+	return -1;
+}
+
+
+#endif  // include guard
--- a/lib/fs/readlink/areadlink.h
+++ b/lib/fs/readlink/areadlink.h
@@ -9,11 +9,11 @@
 #include <config.h>

 #include <errno.h>
-#include <limits.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>

+#include "defines.h"
 #include "alloc/malloc.h"
 #include "attr.h"
 #include "fs/readlink/readlinknul.h"
--- a/lib/fs/readlink/readlinknul.c
+++ b/lib/fs/readlink/readlinknul.c
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
 // SPDX-License-Identifier: BSD-3-Clause


@@ -6,9 +6,8 @@

 #include "fs/readlink/readlinknul.h"

-#include <stddef.h>
 #include <sys/types.h>


 extern inline ssize_t readlinknul(const char *restrict link, char *restrict buf,
-    size_t size);
+    ssize_t size);
--- a/lib/fs/readlink/readlinknul.h
+++ b/lib/fs/readlink/readlinknul.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
 // SPDX-License-Identifier: BSD-3-Clause


@@ -9,7 +9,6 @@
 #include <config.h>

 #include <errno.h>
-#include <stddef.h>
 #include <string.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -18,35 +17,33 @@
 #include "sizeof.h"


-#define READLINKNUL(link, buf)  readlinknul(link, buf, NITEMS(buf))
+#define READLINKNUL(link, buf)  readlinknul(link, buf, countof(buf))


 ATTR_STRING(1)
 inline ssize_t readlinknul(const char *restrict link, char *restrict buf,
-    size_t size);
+    ssize_t size);


 // Similar to readlink(2), but terminate the string.
 inline ssize_t
-readlinknul(const char *restrict link, char *restrict buf, size_t size)
+readlinknul(const char *restrict link, char *restrict buf, ssize_t size)
 {
-	size_t   ulen;
-	ssize_t  slen;
+	ssize_t  len;

-	slen = readlink(link, buf, size);
-	if (slen == -1)
+	len = readlink(link, buf, size);
+	if (len == -1)
 		return -1;

-	ulen = slen;
-	if (ulen == size) {
+	if (len == size) {
 		stpcpy(&buf[size-1], "");
 		errno = E2BIG;
 		return -1;
 	}

-	stpcpy(&buf[ulen], "");
+	stpcpy(&buf[len], "");

-	return slen;
+	return len;
 }


--- a/lib/get_pid.c
+++ b/lib/get_pid.c
@@ -5,15 +5,15 @@

 #include <config.h>

-#ident "$Id$"
-
-#include "prototypes.h"
-#include "defines.h"
+#include <limits.h>
+#include <fcntl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <fcntl.h>

+#include "defines.h"
 #include "atoi/getnum.h"
+#include "defines.h"
+#include "prototypes.h"
 #include "string/sprintf/snprintf.h"


@@ -52,22 +52,21 @@ int get_pidfd_from_fd(const char *pidfdstr)
 int open_pidfd(const char *pidstr)
 {
 	int    proc_dir_fd;
-	char   proc_dir_name[32];
+	char   proc_dir_name[PATH_MAX];
 	pid_t  target;

 	if (get_pid(pidstr, &target) == -1)
 		return -ENOENT;

-	/* max string length is 6 + 10 + 1 + 1 = 18, allocate 32 bytes */
-	if (SNPRINTF(proc_dir_name, "/proc/%u/", target) == -1) {
-		fprintf(stderr, "snprintf of proc path failed for %u: %s\n",
+	if (SNPRINTF(proc_dir_name, "/proc/%d/", target) == -1) {
+		fprintf(stderr, "snprintf of proc path failed for %d: %s\n",
 			target, strerror(errno));
 		return -EINVAL;
 	}

 	proc_dir_fd = open(proc_dir_name, O_DIRECTORY);
 	if (proc_dir_fd < 0) {
-		fprintf(stderr, _("Could not open proc directory for target %u: %s\n"),
+		fprintf(stderr, _("Could not open proc directory for target %d: %s\n"),
 			target, strerror(errno));
 		return -EINVAL;
 	}
--- a/lib/getdate.c
+++ b/lib/getdate.c
--- a/lib/getdate.h
+++ b/lib/getdate.h
@@ -1,16 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1997 - 2000, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2005       , Tomasz Kłoczko
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef _GETDATE_H_
-#define _GETDATE_H_
-
-#include <config.h>
-#include "defines.h"
-
-time_t get_date (const char *p, /*@null@*/const time_t *now);
-#endif
--- a/lib/getdate.y
+++ b/lib/getdate.y
@@ -1,950 +0,0 @@
-%{
-/*
-**  Originally written by Steven M. Bellovin <smb@research.att.com> while
-**  at the University of North Carolina at Chapel Hill.  Later tweaked by
-**  a couple of people on Usenet.  Completely overhauled by Rich $alz
-**  <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990;
-**
-**  This grammar has 13 shift/reduce conflicts.
-**
-**  This code is in the public domain and has no copyright.
-*/
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* Since the code of getdate.y is not included in the Emacs executable
-   itself, there is no need to #define static in this file.  Even if
-   the code were included in the Emacs executable, it probably
-   wouldn't do any harm to #undef it here; this will only cause
-   problems if we try to write to a static variable, which I don't
-   think this code needs to do.  */
-#ifdef emacs
-# undef static
-#endif
-
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-#include <time.h>
-
-#include "attr.h"
-#include "getdate.h"
-#include "string/strcmp/streq.h"
-#include "string/strspn/stpspn.h"
-
-
-/* Some old versions of bison generate parsers that use bcopy.
-   That loses on systems that don't provide the function, so we have
-   to redefine it here.  */
-#if !defined (HAVE_BCOPY) && !defined (bcopy)
-# define bcopy(from, to, len) memcpy ((to), (from), (len))
-#endif
-
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
-   as well as gratuitously global symbol names, so we can have multiple
-   yacc generated parsers in the same program.  Note that these are only
-   the variables produced by yacc.  If other parser generators (bison,
-   byacc, etc) produce additional global names that conflict at link time,
-   then those parser generators need to be fixed instead of adding those
-   names to this list. */
-
-#define yymaxdepth gd_maxdepth
-#define yyparse gd_parse
-#define yylex   gd_lex
-#define yyerror gd_error
-#define yylval  gd_lval
-#define yychar  gd_char
-#define yydebug gd_debug
-#define yypact  gd_pact
-#define yyr1    gd_r1
-#define yyr2    gd_r2
-#define yydef   gd_def
-#define yychk   gd_chk
-#define yypgo   gd_pgo
-#define yyact   gd_act
-#define yyexca  gd_exca
-#define yyerrflag gd_errflag
-#define yynerrs gd_nerrs
-#define yyps    gd_ps
-#define yypv    gd_pv
-#define yys     gd_s
-#define yy_yys  gd_yys
-#define yystate gd_state
-#define yytmp   gd_tmp
-#define yyv     gd_v
-#define yy_yyv  gd_yyv
-#define yyval   gd_val
-#define yylloc  gd_lloc
-#define yyreds  gd_reds          /* With YYDEBUG defined */
-#define yytoks  gd_toks          /* With YYDEBUG defined */
-#define yylhs   gd_yylhs
-#define yylen   gd_yylen
-#define yydefred gd_yydefred
-#define yydgoto gd_yydgoto
-#define yysindex gd_yysindex
-#define yyrindex gd_yyrindex
-#define yygindex gd_yygindex
-#define yytable  gd_yytable
-#define yycheck  gd_yycheck
-
-static int yylex (void);
-static int yyerror (const char *s);
-
-#define EPOCH		1970
-#define HOUR(x)		((x) * 60)
-
-#define MAX_BUFF_LEN    128   /* size of buffer to read the date into */
-
-/*
-**  An entry in the lexical lookup table.
-*/
-typedef struct _TABLE {
-    const char	*name;
-    int		type;
-    int		value;
-} TABLE;
-
-
-/*
-**  Meridian:  am, pm, or 24-hour style.
-*/
-typedef enum _MERIDIAN {
-    MERam, MERpm, MER24
-} MERIDIAN;
-
-
-/*
-**  Global variables.  We could get rid of most of these by using a good
-**  union as the yacc stack.  (This routine was originally written before
-**  yacc had the %union construct.)  Maybe someday; right now we only use
-**  the %union very rarely.
-*/
-static const char	*yyInput;
-static int	yyDayOrdinal;
-static int	yyDayNumber;
-static int	yyHaveDate;
-static int	yyHaveDay;
-static int	yyHaveRel;
-static int	yyHaveTime;
-static int	yyHaveZone;
-static int	yyTimezone;
-static int	yyDay;
-static int	yyHour;
-static int	yyMinutes;
-static int	yyMonth;
-static int	yySeconds;
-static int	yyYear;
-static MERIDIAN	yyMeridian;
-static int	yyRelDay;
-static int	yyRelHour;
-static int	yyRelMinutes;
-static int	yyRelMonth;
-static int	yyRelSeconds;
-static int	yyRelYear;
-
-%}
-
-%union {
-    int			Number;
-    enum _MERIDIAN	Meridian;
-}
-
-%token	tAGO tDAY tDAY_UNIT tDAYZONE tDST tHOUR_UNIT tID
-%token	tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT
-%token	tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE
-
-%type	<Number>	tDAY tDAY_UNIT tDAYZONE tHOUR_UNIT tMINUTE_UNIT
-%type	<Number>	tMONTH tMONTH_UNIT
-%type	<Number>	tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE
-%type	<Meridian>	tMERIDIAN o_merid
-
-%%
-
-spec	: /* NULL */
-	| spec item
-	;
-
-item	: time {
-	    yyHaveTime++;
-	}
-	| zone {
-	    yyHaveZone++;
-	}
-	| date {
-	    yyHaveDate++;
-	}
-	| day {
-	    yyHaveDay++;
-	}
-	| rel {
-	    yyHaveRel++;
-	}
-	| number
-	;
-
-time	: tUNUMBER tMERIDIAN {
-	    yyHour = $1;
-	    yyMinutes = 0;
-	    yySeconds = 0;
-	    yyMeridian = $2;
-	}
-	| tUNUMBER ':' tUNUMBER o_merid {
-	    yyHour = $1;
-	    yyMinutes = $3;
-	    yySeconds = 0;
-	    yyMeridian = $4;
-	}
-	| tUNUMBER ':' tUNUMBER tSNUMBER {
-	    yyHour = $1;
-	    yyMinutes = $3;
-	    yyMeridian = MER24;
-	    yyHaveZone++;
-	    yyTimezone = ($4 < 0
-			  ? -$4 % 100 + (-$4 / 100) * 60
-			  : - ($4 % 100 + ($4 / 100) * 60));
-	}
-	| tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid {
-	    yyHour = $1;
-	    yyMinutes = $3;
-	    yySeconds = $5;
-	    yyMeridian = $6;
-	}
-	| tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER {
-	    yyHour = $1;
-	    yyMinutes = $3;
-	    yySeconds = $5;
-	    yyMeridian = MER24;
-	    yyHaveZone++;
-	    yyTimezone = ($6 < 0
-			  ? -$6 % 100 + (-$6 / 100) * 60
-			  : - ($6 % 100 + ($6 / 100) * 60));
-	}
-	;
-
-zone	: tZONE {
-	    yyTimezone = $1;
-	}
-	| tDAYZONE {
-	    yyTimezone = $1 - 60;
-	}
-	|
-	  tZONE tDST {
-	    yyTimezone = $1 - 60;
-	}
-	;
-
-day	: tDAY {
-	    yyDayOrdinal = 1;
-	    yyDayNumber = $1;
-	}
-	| tDAY ',' {
-	    yyDayOrdinal = 1;
-	    yyDayNumber = $1;
-	}
-	| tUNUMBER tDAY {
-	    yyDayOrdinal = $1;
-	    yyDayNumber = $2;
-	}
-	;
-
-date	: tUNUMBER '/' tUNUMBER {
-	    yyMonth = $1;
-	    yyDay = $3;
-	}
-	| tUNUMBER '/' tUNUMBER '/' tUNUMBER {
-	  /* Interpret as YYYY/MM/DD if $1 >= 1000, otherwise as MM/DD/YY.
-	     The goal in recognizing YYYY/MM/DD is solely to support legacy
-	     machine-generated dates like those in an RCS log listing.  If
-	     you want portability, use the ISO 8601 format.  */
-	  if ($1 >= 1000)
-	    {
-	      yyYear = $1;
-	      yyMonth = $3;
-	      yyDay = $5;
-	    }
-	  else
-	    {
-	      yyMonth = $1;
-	      yyDay = $3;
-	      yyYear = $5;
-	    }
-	}
-	| tUNUMBER tSNUMBER tSNUMBER {
-	    /* ISO 8601 format.  yyyy-mm-dd.  */
-	    yyYear = $1;
-	    yyMonth = -$2;
-	    yyDay = -$3;
-	}
-	| tUNUMBER tMONTH tSNUMBER {
-	    /* e.g. 17-JUN-1992.  */
-	    yyDay = $1;
-	    yyMonth = $2;
-	    yyYear = -$3;
-	}
-	| tMONTH tUNUMBER {
-	    yyMonth = $1;
-	    yyDay = $2;
-	}
-	| tMONTH tUNUMBER ',' tUNUMBER {
-	    yyMonth = $1;
-	    yyDay = $2;
-	    yyYear = $4;
-	}
-	| tUNUMBER tMONTH {
-	    yyMonth = $2;
-	    yyDay = $1;
-	}
-	| tUNUMBER tMONTH tUNUMBER {
-	    yyMonth = $2;
-	    yyDay = $1;
-	    yyYear = $3;
-	}
-	;
-
-rel	: relunit tAGO {
-	    yyRelSeconds = -yyRelSeconds;
-	    yyRelMinutes = -yyRelMinutes;
-	    yyRelHour = -yyRelHour;
-	    yyRelDay = -yyRelDay;
-	    yyRelMonth = -yyRelMonth;
-	    yyRelYear = -yyRelYear;
-	}
-	| relunit
-	;
-
-relunit	: tUNUMBER tYEAR_UNIT {
-	    yyRelYear += $1 * $2;
-	}
-	| tSNUMBER tYEAR_UNIT {
-	    yyRelYear += $1 * $2;
-	}
-	| tYEAR_UNIT {
-	    yyRelYear += $1;
-	}
-	| tUNUMBER tMONTH_UNIT {
-	    yyRelMonth += $1 * $2;
-	}
-	| tSNUMBER tMONTH_UNIT {
-	    yyRelMonth += $1 * $2;
-	}
-	| tMONTH_UNIT {
-	    yyRelMonth += $1;
-	}
-	| tUNUMBER tDAY_UNIT {
-	    yyRelDay += $1 * $2;
-	}
-	| tSNUMBER tDAY_UNIT {
-	    yyRelDay += $1 * $2;
-	}
-	| tDAY_UNIT {
-	    yyRelDay += $1;
-	}
-	| tUNUMBER tHOUR_UNIT {
-	    yyRelHour += $1 * $2;
-	}
-	| tSNUMBER tHOUR_UNIT {
-	    yyRelHour += $1 * $2;
-	}
-	| tHOUR_UNIT {
-	    yyRelHour += $1;
-	}
-	| tUNUMBER tMINUTE_UNIT {
-	    yyRelMinutes += $1 * $2;
-	}
-	| tSNUMBER tMINUTE_UNIT {
-	    yyRelMinutes += $1 * $2;
-	}
-	| tMINUTE_UNIT {
-	    yyRelMinutes += $1;
-	}
-	| tUNUMBER tSEC_UNIT {
-	    yyRelSeconds += $1 * $2;
-	}
-	| tSNUMBER tSEC_UNIT {
-	    yyRelSeconds += $1 * $2;
-	}
-	| tSEC_UNIT {
-	    yyRelSeconds += $1;
-	}
-	;
-
-number	: tUNUMBER
-          {
-	    if ((yyHaveTime != 0) && (yyHaveDate != 0) && (yyHaveRel == 0))
-	      yyYear = $1;
-	    else
-	      {
-		if ($1>10000)
-		  {
-		    yyHaveDate++;
-		    yyDay= ($1)%100;
-		    yyMonth= ($1/100)%100;
-		    yyYear = $1/10000;
-		  }
-		else
-		  {
-		    yyHaveTime++;
-		    if ($1 < 100)
-		      {
-			yyHour = $1;
-			yyMinutes = 0;
-		      }
-		    else
-		      {
-		    	yyHour = $1 / 100;
-		    	yyMinutes = $1 % 100;
-		      }
-		    yySeconds = 0;
-		    yyMeridian = MER24;
-		  }
-	      }
-	  }
-	;
-
-o_merid	: /* NULL */
-	  {
-	    $$ = MER24;
-	  }
-	| tMERIDIAN
-	  {
-	    $$ = $1;
-	  }
-	;
-
-%%
-
-/* Month and day table. */
-static TABLE const MonthDayTable[] = {
-    { "january",	tMONTH,  1 },
-    { "february",	tMONTH,  2 },
-    { "march",		tMONTH,  3 },
-    { "april",		tMONTH,  4 },
-    { "may",		tMONTH,  5 },
-    { "june",		tMONTH,  6 },
-    { "july",		tMONTH,  7 },
-    { "august",		tMONTH,  8 },
-    { "september",	tMONTH,  9 },
-    { "sept",		tMONTH,  9 },
-    { "october",	tMONTH, 10 },
-    { "november",	tMONTH, 11 },
-    { "december",	tMONTH, 12 },
-    { "sunday",		tDAY, 0 },
-    { "monday",		tDAY, 1 },
-    { "tuesday",	tDAY, 2 },
-    { "tues",		tDAY, 2 },
-    { "wednesday",	tDAY, 3 },
-    { "wednes",		tDAY, 3 },
-    { "thursday",	tDAY, 4 },
-    { "thur",		tDAY, 4 },
-    { "thurs",		tDAY, 4 },
-    { "friday",		tDAY, 5 },
-    { "saturday",	tDAY, 6 },
-    { NULL, 0, 0 }
-};
-
-/* Time units table. */
-static TABLE const UnitsTable[] = {
-    { "year",		tYEAR_UNIT,	1 },
-    { "month",		tMONTH_UNIT,	1 },
-    { "fortnight",	tDAY_UNIT,	14 },
-    { "week",		tDAY_UNIT,	7 },
-    { "day",		tDAY_UNIT,	1 },
-    { "hour",		tHOUR_UNIT,	1 },
-    { "minute",		tMINUTE_UNIT,	1 },
-    { "min",		tMINUTE_UNIT,	1 },
-    { "second",		tSEC_UNIT,	1 },
-    { "sec",		tSEC_UNIT,	1 },
-    { NULL, 0, 0 }
-};
-
-/* Assorted relative-time words. */
-static TABLE const OtherTable[] = {
-    { "tomorrow",	tMINUTE_UNIT,	1 * 24 * 60 },
-    { "yesterday",	tMINUTE_UNIT,	-1 * 24 * 60 },
-    { "today",		tMINUTE_UNIT,	0 },
-    { "now",		tMINUTE_UNIT,	0 },
-    { "last",		tUNUMBER,	-1 },
-    { "this",		tMINUTE_UNIT,	0 },
-    { "next",		tUNUMBER,	2 },
-    { "first",		tUNUMBER,	1 },
-/*  { "second",		tUNUMBER,	2 }, */
-    { "third",		tUNUMBER,	3 },
-    { "fourth",		tUNUMBER,	4 },
-    { "fifth",		tUNUMBER,	5 },
-    { "sixth",		tUNUMBER,	6 },
-    { "seventh",	tUNUMBER,	7 },
-    { "eighth",		tUNUMBER,	8 },
-    { "ninth",		tUNUMBER,	9 },
-    { "tenth",		tUNUMBER,	10 },
-    { "eleventh",	tUNUMBER,	11 },
-    { "twelfth",	tUNUMBER,	12 },
-    { "ago",		tAGO,	1 },
-    { NULL, 0, 0 }
-};
-
-/* The timezone table. */
-static TABLE const TimezoneTable[] = {
-    { "gmt",	tZONE,     HOUR ( 0) },	/* Greenwich Mean */
-    { "ut",	tZONE,     HOUR ( 0) },	/* Universal (Coordinated) */
-    { "utc",	tZONE,     HOUR ( 0) },
-    { "wet",	tZONE,     HOUR ( 0) },	/* Western European */
-    { "bst",	tDAYZONE,  HOUR ( 0) },	/* British Summer */
-    { "wat",	tZONE,     HOUR ( 1) },	/* West Africa */
-    { "at",	tZONE,     HOUR ( 2) },	/* Azores */
-    { "ast",	tZONE,     HOUR ( 4) },	/* Atlantic Standard */
-    { "adt",	tDAYZONE,  HOUR ( 4) },	/* Atlantic Daylight */
-    { "est",	tZONE,     HOUR ( 5) },	/* Eastern Standard */
-    { "edt",	tDAYZONE,  HOUR ( 5) },	/* Eastern Daylight */
-    { "cst",	tZONE,     HOUR ( 6) },	/* Central Standard */
-    { "cdt",	tDAYZONE,  HOUR ( 6) },	/* Central Daylight */
-    { "mst",	tZONE,     HOUR ( 7) },	/* Mountain Standard */
-    { "mdt",	tDAYZONE,  HOUR ( 7) },	/* Mountain Daylight */
-    { "pst",	tZONE,     HOUR ( 8) },	/* Pacific Standard */
-    { "pdt",	tDAYZONE,  HOUR ( 8) },	/* Pacific Daylight */
-    { "yst",	tZONE,     HOUR ( 9) },	/* Yukon Standard */
-    { "ydt",	tDAYZONE,  HOUR ( 9) },	/* Yukon Daylight */
-    { "hst",	tZONE,     HOUR (10) },	/* Hawaii Standard */
-    { "hdt",	tDAYZONE,  HOUR (10) },	/* Hawaii Daylight */
-    { "cat",	tZONE,     HOUR (10) },	/* Central Alaska */
-    { "ahst",	tZONE,     HOUR (10) },	/* Alaska-Hawaii Standard */
-    { "nt",	tZONE,     HOUR (11) },	/* Nome */
-    { "idlw",	tZONE,     HOUR (12) },	/* International Date Line West */
-    { "cet",	tZONE,     -HOUR (1) },	/* Central European */
-    { "met",	tZONE,     -HOUR (1) },	/* Middle European */
-    { "mewt",	tZONE,     -HOUR (1) },	/* Middle European Winter */
-    { "mest",	tDAYZONE,  -HOUR (1) },	/* Middle European Summer */
-    { "mesz",	tDAYZONE,  -HOUR (1) },	/* Middle European Summer */
-    { "swt",	tZONE,     -HOUR (1) },	/* Swedish Winter */
-    { "sst",	tDAYZONE,  -HOUR (1) },	/* Swedish Summer */
-    { "fwt",	tZONE,     -HOUR (1) },	/* French Winter */
-    { "fst",	tDAYZONE,  -HOUR (1) },	/* French Summer */
-    { "eet",	tZONE,     -HOUR (2) },	/* Eastern Europe, USSR Zone 1 */
-    { "bt",	tZONE,     -HOUR (3) },	/* Baghdad, USSR Zone 2 */
-    { "zp4",	tZONE,     -HOUR (4) },	/* USSR Zone 3 */
-    { "zp5",	tZONE,     -HOUR (5) },	/* USSR Zone 4 */
-    { "zp6",	tZONE,     -HOUR (6) },	/* USSR Zone 5 */
-    { "wast",	tZONE,     -HOUR (7) },	/* West Australian Standard */
-    { "wadt",	tDAYZONE,  -HOUR (7) },	/* West Australian Daylight */
-    { "cct",	tZONE,     -HOUR (8) },	/* China Coast, USSR Zone 7 */
-    { "jst",	tZONE,     -HOUR (9) },	/* Japan Standard, USSR Zone 8 */
-    { "east",	tZONE,     -HOUR (10) },	/* Eastern Australian Standard */
-    { "eadt",	tDAYZONE,  -HOUR (10) },	/* Eastern Australian Daylight */
-    { "gst",	tZONE,     -HOUR (10) },	/* Guam Standard, USSR Zone 9 */
-    { "nzt",	tZONE,     -HOUR (12) },	/* New Zealand */
-    { "nzst",	tZONE,     -HOUR (12) },	/* New Zealand Standard */
-    { "nzdt",	tDAYZONE,  -HOUR (12) },	/* New Zealand Daylight */
-    { "idle",	tZONE,     -HOUR (12) },	/* International Date Line East */
-    { NULL, 0, 0 }
-};
-
-/* Military timezone table. */
-static TABLE const MilitaryTable[] = {
-    { "a",	tZONE,	HOUR (  1) },
-    { "b",	tZONE,	HOUR (  2) },
-    { "c",	tZONE,	HOUR (  3) },
-    { "d",	tZONE,	HOUR (  4) },
-    { "e",	tZONE,	HOUR (  5) },
-    { "f",	tZONE,	HOUR (  6) },
-    { "g",	tZONE,	HOUR (  7) },
-    { "h",	tZONE,	HOUR (  8) },
-    { "i",	tZONE,	HOUR (  9) },
-    { "k",	tZONE,	HOUR ( 10) },
-    { "l",	tZONE,	HOUR ( 11) },
-    { "m",	tZONE,	HOUR ( 12) },
-    { "n",	tZONE,	HOUR (- 1) },
-    { "o",	tZONE,	HOUR (- 2) },
-    { "p",	tZONE,	HOUR (- 3) },
-    { "q",	tZONE,	HOUR (- 4) },
-    { "r",	tZONE,	HOUR (- 5) },
-    { "s",	tZONE,	HOUR (- 6) },
-    { "t",	tZONE,	HOUR (- 7) },
-    { "u",	tZONE,	HOUR (- 8) },
-    { "v",	tZONE,	HOUR (- 9) },
-    { "w",	tZONE,	HOUR (-10) },
-    { "x",	tZONE,	HOUR (-11) },
-    { "y",	tZONE,	HOUR (-12) },
-    { "z",	tZONE,	HOUR (  0) },
-    { NULL, 0, 0 }
-};
-
-
-
-
-static int yyerror (MAYBE_UNUSED const char *s)
-{
-  return 0;
-}
-
-static int ToHour (int Hours, MERIDIAN Meridian)
-{
-  switch (Meridian)
-    {
-    case MER24:
-      if (Hours < 0 || Hours > 23)
-	return -1;
-      return Hours;
-    case MERam:
-      if (Hours < 1 || Hours > 12)
-	return -1;
-      if (Hours == 12)
-	Hours = 0;
-      return Hours;
-    case MERpm:
-      if (Hours < 1 || Hours > 12)
-	return -1;
-      if (Hours == 12)
-	Hours = 0;
-      return Hours + 12;
-    default:
-      abort ();
-    }
-  /* NOTREACHED */
-}
-
-static int ToYear (int Year)
-{
-  if (Year < 0)
-    Year = -Year;
-
-  /* XPG4 suggests that years 00-68 map to 2000-2068, and
-     years 69-99 map to 1969-1999.  */
-  if (Year < 69)
-    Year += 2000;
-  else if (Year < 100)
-    Year += 1900;
-
-  return Year;
-}
-
-static int LookupWord (char *buff)
-{
-  register char *p;
-  register char *q;
-  register const TABLE *tp;
-  int i;
-  bool abbrev;
-
-  /* Make it lowercase. */
-  for (p = buff; !streq(p, ""); p++)
-    if (isupper (*p))
-      *p = tolower (*p);
-
-  if (streq(buff, "am") || streq(buff, "a.m."))
-    {
-      yylval.Meridian = MERam;
-      return tMERIDIAN;
-    }
-  if (streq(buff, "pm") || streq(buff, "p.m."))
-    {
-      yylval.Meridian = MERpm;
-      return tMERIDIAN;
-    }
-
-  /* See if we have an abbreviation for a month. */
-  if (strlen (buff) == 3)
-    abbrev = true;
-  else if (strlen (buff) == 4 && buff[3] == '.')
-    {
-      abbrev = true;
-      stpcpy(&buff[3], "");
-    }
-  else
-    abbrev = false;
-
-  for (tp = MonthDayTable; tp->name; tp++)
-    {
-      if (abbrev)
-	{
-	  if (strncmp (buff, tp->name, 3) == 0)
-	    {
-	      yylval.Number = tp->value;
-	      return tp->type;
-	    }
-	}
-      else if (streq(buff, tp->name))
-	{
-	  yylval.Number = tp->value;
-	  return tp->type;
-	}
-    }
-
-  for (tp = TimezoneTable; tp->name; tp++)
-    if (streq(buff, tp->name))
-      {
-	yylval.Number = tp->value;
-	return tp->type;
-      }
-
-  if (streq(buff, "dst"))
-    return tDST;
-
-  for (tp = UnitsTable; tp->name; tp++)
-    if (streq(buff, tp->name))
-      {
-	yylval.Number = tp->value;
-	return tp->type;
-      }
-
-  /* Strip off any plural and try the units table again. */
-  i = strlen (buff) - 1;
-  if (buff[i] == 's')
-    {
-      stpcpy(&buff[i], "");
-      for (tp = UnitsTable; tp->name; tp++)
-	if (streq(buff, tp->name))
-	  {
-	    yylval.Number = tp->value;
-	    return tp->type;
-	  }
-      buff[i] = 's';		/* Put back for "this" in OtherTable. */
-    }
-
-  for (tp = OtherTable; tp->name; tp++)
-    if (streq(buff, tp->name))
-      {
-	yylval.Number = tp->value;
-	return tp->type;
-      }
-
-  /* Military timezones. */
-  if (buff[1] == '\0' && isalpha (*buff))
-    {
-      for (tp = MilitaryTable; tp->name; tp++)
-	if (streq(buff, tp->name))
-	  {
-	    yylval.Number = tp->value;
-	    return tp->type;
-	  }
-    }
-
-  /* Drop out any periods and try the timezone table again. */
-  for (i = 0, p = q = buff; !streq(q, ""); q++)
-    if (*q != '.')
-      *p++ = *q;
-    else
-      i++;
-  stpcpy(p, "");
-  if (0 != i)
-    for (tp = TimezoneTable; NULL != tp->name; tp++)
-      if (streq(buff, tp->name))
-	{
-	  yylval.Number = tp->value;
-	  return tp->type;
-	}
-
-  return tID;
-}
-
-static int
-yylex (void)
-{
-  register char c;
-  register char *p;
-  char buff[20];
-  int Count;
-  int sign;
-
-  for (;;)
-    {
-      yyInput = stpspn(yyInput, " \t");
-
-      if (isdigit (c = *yyInput) || c == '-' || c == '+')
-	{
-	  if (c == '-' || c == '+')
-	    {
-	      sign = c == '-' ? -1 : 1;
-	      if (!isdigit (*++yyInput))
-		/* skip the '-' sign */
-		continue;
-	    }
-	  else
-	    sign = 0;
-	  for (yylval.Number = 0; isdigit (c = *yyInput++);)
-	    yylval.Number = 10 * yylval.Number + c - '0';
-	  yyInput--;
-	  if (sign < 0)
-	    yylval.Number = -yylval.Number;
-	  return (0 != sign) ? tSNUMBER : tUNUMBER;
-	}
-      if (isalpha (c))
-	{
-	  for (p = buff; (c = *yyInput++, isalpha (c)) || c == '.';)
-	    if (p < &buff[sizeof buff - 1])
-	      *p++ = c;
-          stpcpy(p, "");
-	  yyInput--;
-	  return LookupWord (buff);
-	}
-      if (c != '(')
-	return *yyInput++;
-      Count = 0;
-      do
-	{
-	  c = *yyInput++;
-	  if (c == '\0')
-	    return c;
-	  if (c == '(')
-	    Count++;
-	  else if (c == ')')
-	    Count--;
-	}
-      while (Count > 0);
-    }
-}
-
-#define TM_YEAR_ORIGIN 1900
-
-/* Yield A - B, measured in seconds.  */
-static long difftm (struct tm *a, struct tm *b)
-{
-  int ay = a->tm_year + (TM_YEAR_ORIGIN - 1);
-  int by = b->tm_year + (TM_YEAR_ORIGIN - 1);
-  long days = (
-  /* difference in day of year */
-		a->tm_yday - b->tm_yday
-  /* + intervening leap days */
-		+ ((ay >> 2) - (by >> 2))
-		- (ay / 100 - by / 100)
-		+ ((ay / 100 >> 2) - (by / 100 >> 2))
-  /* + difference in years * 365 */
-		+ (long) (ay - by) * 365
-  );
-  return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
-		+ (a->tm_min - b->tm_min))
-	  + (a->tm_sec - b->tm_sec));
-}
-
-time_t get_date (const char *p, const time_t *now)
-{
-  struct tm tm, tm0, *tmp;
-  time_t Start;
-
-  yyInput = p;
-  Start = now ? *now : time(NULL);
-  tmp = localtime (&Start);
-  yyYear = tmp->tm_year + TM_YEAR_ORIGIN;
-  yyMonth = tmp->tm_mon + 1;
-  yyDay = tmp->tm_mday;
-  yyHour = tmp->tm_hour;
-  yyMinutes = tmp->tm_min;
-  yySeconds = tmp->tm_sec;
-  yyMeridian = MER24;
-  yyRelSeconds = 0;
-  yyRelMinutes = 0;
-  yyRelHour = 0;
-  yyRelDay = 0;
-  yyRelMonth = 0;
-  yyRelYear = 0;
-  yyHaveDate = 0;
-  yyHaveDay = 0;
-  yyHaveRel = 0;
-  yyHaveTime = 0;
-  yyHaveZone = 0;
-
-  if (yyparse ()
-      || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1)
-    return -1;
-
-  tm.tm_year = ToYear (yyYear) - TM_YEAR_ORIGIN + yyRelYear;
-  tm.tm_mon = yyMonth - 1 + yyRelMonth;
-  tm.tm_mday = yyDay + yyRelDay;
-  if ((yyHaveTime != 0) ||
-      ( (yyHaveRel != 0) && (yyHaveDate == 0) && (yyHaveDay == 0) ))
-    {
-      tm.tm_hour = ToHour (yyHour, yyMeridian);
-      if (tm.tm_hour < 0)
-	return -1;
-      tm.tm_min = yyMinutes;
-      tm.tm_sec = yySeconds;
-    }
-  else
-    {
-      tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
-    }
-  tm.tm_hour += yyRelHour;
-  tm.tm_min += yyRelMinutes;
-  tm.tm_sec += yyRelSeconds;
-  tm.tm_isdst = -1;
-  tm0 = tm;
-
-  Start = mktime (&tm);
-
-  if (Start == (time_t) -1)
-    {
-
-      /* Guard against falsely reporting errors near the time_t boundaries
-         when parsing times in other time zones.  For example, if the min
-         time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead
-         of UTC, then the min localtime value is 1970-01-01 08:00:00; if
-         we apply mktime to 1970-01-01 00:00:00 we will get an error, so
-         we apply mktime to 1970-01-02 08:00:00 instead and adjust the time
-         zone by 24 hours to compensate.  This algorithm assumes that
-         there is no DST transition within a day of the time_t boundaries.  */
-      if (yyHaveZone)
-	{
-	  tm = tm0;
-	  if (tm.tm_year <= EPOCH - TM_YEAR_ORIGIN)
-	    {
-	      tm.tm_mday++;
-	      yyTimezone -= 24 * 60;
-	    }
-	  else
-	    {
-	      tm.tm_mday--;
-	      yyTimezone += 24 * 60;
-	    }
-	  Start = mktime (&tm);
-	}
-
-      if (Start == (time_t) -1)
-	return Start;
-    }
-
-  if (yyHaveDay && !yyHaveDate)
-    {
-      tm.tm_mday += ((yyDayNumber - tm.tm_wday + 7) % 7
-		     + 7 * (yyDayOrdinal - (0 < yyDayOrdinal)));
-      Start = mktime (&tm);
-      if (Start == (time_t) -1)
-	return Start;
-    }
-
-  if (yyHaveZone)
-    {
-      long delta = yyTimezone * 60L + difftm (&tm, gmtime (&Start));
-      if ((Start + delta < Start) != (delta < 0))
-	return -1;		/* time_t overflow */
-      Start += delta;
-    }
-
-  return Start;
-}
-
-#if	defined (TEST)
-
-int
-main(void)
-{
-  char buff[MAX_BUFF_LEN + 1];
-  time_t d;
-
-  (void) printf ("Enter date, or blank line to exit.\n\t> ");
-  (void) fflush (stdout);
-
-  buff[MAX_BUFF_LEN] = 0;
-  while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0])
-    {
-      d = get_date(buff, NULL);
-      if (d == -1)
-	(void) printf ("Bad format - couldn't convert.\n");
-      else
-	(void) printf ("%s", ctime (&d));
-      (void) printf ("\t> ");
-      (void) fflush (stdout);
-    }
-  exit (0);
-  /* NOTREACHED */
-}
-#endif /* defined (TEST) */
--- a/lib/getdef.c
+++ b/lib/getdef.c
@@ -24,14 +24,16 @@

 #include "atoi/a2i/a2s.h"
 #include "atoi/a2i/a2u.h"
-#include "atoi/str2i/str2u.h"
+#include "atoi/str2i.h"
 #include "defines.h"
 #include "getdef.h"
 #include "prototypes.h"
 #include "shadowlog_internal.h"
-#include "string/sprintf/xasprintf.h"
+#include "sizeof.h"
+#include "string/sprintf/xaprintf.h"
 #include "string/strcmp/strcaseeq.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strspn/stpspn.h"
 #include "string/strspn/stprspn.h"
 #include "string/strtok/stpsep.h"
@@ -76,12 +78,12 @@ struct itemdef {
 #define FOREIGNDEFS				\
 	{"ALWAYS_SET_PATH", NULL},		\
 	{"ENV_ROOTPATH", NULL},			\
+	{"LOGIN_ENV_SAFELIST", NULL},		\
 	{"LOGIN_KEEP_USERNAME", NULL},		\
 	{"LOGIN_PLAIN_PROMPT", NULL},		\
 	{"MOTD_FIRSTONLY", NULL},		\


-#define NUMDEFS	(sizeof(def_table)/sizeof(def_table[0]))
 static struct itemdef def_table[] = {
 	{"CHFN_RESTRICT", NULL},
 	{"CONSOLE_GROUPS", NULL},
@@ -454,13 +456,9 @@ out:
 void setdef_config_file (const char* file)
 {
 #ifdef USE_ECONF
-	char  *cp;
-
-	xasprintf(&cp, "%s/%s", file, sysconfdir);
-	sysconfdir = cp;
+	sysconfdir = xaprintf("%s/%s", file, sysconfdir);
 #ifdef VENDORDIR
-	xasprintf(&cp, "%s/%s", file, vendordir);
-	vendordir = cp;
+	vendordir = xaprintf("%s/%s", file, vendordir);
 #endif
 #else
 	def_fname = file;
@@ -568,7 +566,7 @@ static void def_load (void)
 		 * Break the line into two fields.
 		 */
 		name = stpspn(buf, " \t");	/* first nonwhite */
-		if (streq(name, "") || *name == '#')
+		if (streq(name, "") || strprefix(name, "#"))
 			continue;	/* comment or empty */

 		s = stpsep(name, " \t");  /* next field */
@@ -609,7 +607,7 @@ int main (int argc, char **argv)

 	def_load ();

-	for (i = 0; i < NUMDEFS; ++i) {
+	for (i = 0; i < countof(def_table); ++i) {
 		d = def_find (def_table[i].name, NULL);
 		if (NULL == d) {
 			printf ("error - lookup '%s' failed\n",
--- a/lib/groupio.c
+++ b/lib/groupio.c
@@ -19,9 +19,11 @@
 #include "alloc/malloc.h"
 #include "commonio.h"
 #include "defines.h"
+#include "fields.h"
 #include "getdef.h"
 #include "groupio.h"
 #include "prototypes.h"
+#include "string/sprintf/aprintf.h"
 #include "string/strcmp/streq.h"


@@ -324,7 +326,8 @@ static /*@null@*/struct commonio_entry *merge_group_entries (
 	}

 	/* Concatenate the 2 lines */
-	if (asprintf(&new_line, "%s\n%s", gr1->line, gr2->line) == -1)
+	new_line = aprintf("%s\n%s", gr1->line, gr2->line);
+	if (new_line == NULL)
 		return NULL;

 	/* Concatenate the 2 list of members */
--- a/lib/gshadow.c
+++ b/lib/gshadow.c
@@ -15,36 +15,33 @@

 #include <stddef.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>

 #include "alloc/malloc.h"
 #include "alloc/realloc.h"
-#include "alloc/x/xmalloc.h"
 #include "defines.h"
 #include "prototypes.h"
-#include "string/strchr/strchrcnt.h"
 #include "string/strcmp/streq.h"
 #include "string/strtok/stpsep.h"
+#include "string/strtok/strsep2arr.h"
+#include "string/strtok/xastrsep2ls.h"


 static /*@null@*/FILE *shadow;
 static struct sgrp  sgroup = {};

-#define	FIELDS	4
-

 static /*@null@*/char **
 build_list(char *s)
 {
 	char    **l;
-	size_t  i;
+	size_t  n;

-	l = XMALLOC(strchrcnt(s, ',') + 2, char *);
+	l = xastrsep2ls(s, ",", &n);

-	for (i = 0; s != NULL && !streq(s, ""); i++)
-		l[i] = strsep(&s, ",");
-
-	l[i] = NULL;
+	if (streq(l[n-1], ""))
+		l[n-1] = NULL;

 	return l;
 }
@@ -68,42 +65,20 @@ void endsgent (void)
 }

 /*@observer@*//*@null@*/struct sgrp *
-sgetsgent(const char *string)
+sgetsgent(const char *s)
 {
-	static char *sgrbuf = NULL;
-	static size_t sgrbuflen = 0;
+	static char  *dup = NULL;

-	char *fields[FIELDS];
-	char *cp;
-	int i;
-	size_t len = strlen (string) + 1;
+	char  *fields[4];

-	if (len > sgrbuflen) {
-		char *buf = REALLOC(sgrbuf, len, char);
-		if (NULL == buf)
-			return NULL;
+	free(dup);
+	dup = strdup(s);
+	if (dup == NULL)
+		return NULL;

-		sgrbuf = buf;
-		sgrbuflen = len;
-	}
+	stpsep(dup, "\n");

-	strcpy (sgrbuf, string);
-	stpsep(sgrbuf, "\n");
-
-	/*
-	 * There should be exactly 4 colon separated fields.  Find
-	 * all 4 of them and save the starting addresses in fields[].
-	 */
-
-	for (cp = sgrbuf, i = 0; (i < FIELDS) && (NULL != cp); i++)
-		fields[i] = strsep(&cp, ":");
-
-	/*
-	 * If there was an extra field somehow, or perhaps not enough,
-	 * the line is invalid.
-	 */
-
-	if (NULL != cp || i != FIELDS)
+	if (STRSEP2ARR(dup, ":", fields) == -1)
 		return NULL;

 	sgroup.sg_namp = fields[0];
--- a/lib/limits.c
+++ b/lib/limits.c
@@ -32,11 +32,10 @@

 #include "atoi/a2i/a2i.h"
 #include "atoi/a2i/a2s.h"
-#include "atoi/str2i/str2i.h"
-#include "atoi/str2i/str2s.h"
-#include "atoi/str2i/str2u.h"
+#include "atoi/str2i.h"
 #include "string/memset/memzero.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strspn/stpspn.h"
 #include "typetraits.h"

@@ -62,7 +61,7 @@ static int setrlimit_value (unsigned int resource,
 	/* The "-" is special, not belonging to a strange negative limit.
 	 * It is infinity, in a controlled way.
 	 */
-	if ('-' == value[0]) {
+	if (strprefix(value, "-")) {
 		limit = RLIM_INFINITY;

 	} else {
@@ -370,7 +369,7 @@ static int setup_user_limits (const char *uname)
 	 * FIXME: A better (smarter) checking should be done
 	 */
 	while (fgets (buf, 1024, fil) != NULL) {
-		if (('#' == buf[0]) || ('\n' == buf[0])) {
+		if (strprefix(buf, "#") || strprefix(buf, "\n")) {
 			continue;
 		}
 		MEMZERO(tempbuf);
@@ -401,7 +400,7 @@ static int setup_user_limits (const char *uname)
 				break;
 			} else if (streq(name, "*")) {
 				strcpy (deflimits, tempbuf);
-			} else if (name[0] == '@') {
+			} else if (strprefix(name, "@")) {
 				/* If the user is in the group, the group
 				 * limits apply unless later a line for
 				 * the specific user is found.
@@ -473,14 +472,15 @@ void setup_limits (const struct passwd *info)
 			}
 		}
 		for (cp = info->pw_gecos; cp != NULL; cp = strchr (cp, ',')) {
-			if (',' == *cp) {
-				cp++;
-			}
+			char  *val;

-			if (strncmp (cp, "pri=", 4) == 0) {
+			cp = strprefix(cp, ",") ?: cp;
+
+			val = strprefix(cp, "pri=");
+			if (val != NULL) {
 				int  inc;

-				if (a2si(&inc, cp + 4, NULL, 0, -20, 20) == 0) {
+				if (a2si(&inc, val, NULL, 0, -20, 20) == 0) {
 					errno = 0;
 					if (   (nice (inc) != -1)
 					    || (0 != errno)) {
@@ -495,10 +495,12 @@ void setup_limits (const struct passwd *info)

 				continue;
 			}
-			if (strncmp (cp, "ulimit=", 7) == 0) {
+
+			val = strprefix(cp, "ulimit=");
+			if (val != NULL) {
 				int  blocks;

-				if (   (str2si(&blocks, cp + 7) == -1)
+				if (   (str2si(&blocks, val) == -1)
 				    || (set_filesize_limit (blocks) != 0)) {
 					SYSLOG ((LOG_WARN,
 					         "Can't set the ulimit for user %s",
@@ -506,10 +508,12 @@ void setup_limits (const struct passwd *info)
 				}
 				continue;
 			}
-			if (strncmp (cp, "umask=", 6) == 0) {
+
+			val = strprefix(cp, "umask=");
+			if (val != NULL) {
 				mode_t  mask;

-				if (str2i(mode_t, &mask, cp + 6) == -1) {
+				if (str2i(mode_t, &mask, val) == -1) {
 					SYSLOG ((LOG_WARN,
 					         "Can't set umask value for user %s",
 					         info->pw_name));
--- a/lib/list.c
+++ b/lib/list.c
@@ -18,6 +18,7 @@
 #include "string/strchr/strchrcnt.h"
 #include "string/strcmp/streq.h"
 #include "string/strdup/xstrdup.h"
+#include "string/strtok/strsep2ls.h"


 /*
@@ -186,9 +187,7 @@ comma_to_list(const char *comma)
 {
 	char *members;
 	char **array;
-	int i;
-	char *cp;
-	char *cp2;
+	size_t  n;

 	assert (NULL != comma);

@@ -203,7 +202,8 @@ comma_to_list(const char *comma)
 	 * n: number of delimiters + last element + NULL
 	 */

-	array = XMALLOC(strchrcnt(members, ',') + 2, char *);
+	n = strchrcnt(members, ',') + 2;
+	array = XMALLOC(n, char *);

 	/*
 	 * Empty list is special - 0 members, not 1 empty member.  --marekm
@@ -215,18 +215,7 @@ comma_to_list(const char *comma)
 		return array;
 	}

-	/*
-	 * Now go walk that list all over again, this time building the
-	 * array of pointers.
-	 */
-
-	for (cp = members, i = 0; cp != NULL; i++)
-		array[i] = strsep(&cp, ",");
-	array[i] = NULL;
-
-	/*
-	 * Return the new array of pointers
-	 */
+	strsep2ls(members, ",", n, array);

 	return array;
 }
--- a/lib/mail.c
+++ b/lib/mail.c
@@ -16,7 +16,7 @@
 #include <string.h>

 #include "getdef.h"
-#include "string/sprintf/xasprintf.h"
+#include "string/sprintf/xaprintf.h"

 #ident "$Id$"

@@ -37,7 +37,7 @@ void mailcheck (void)
 	if (NULL != mailbox) {
 		char  *newmail;

-		xasprintf(&newmail, "%s/new", mailbox);
+		newmail = xaprintf("%s/new", mailbox);

 		if (stat (newmail, &statbuf) != -1 && statbuf.st_size != 0) {
 			if (statbuf.st_mtime > statbuf.st_atime) {
--- a/lib/must_be.h
+++ b/lib/must_be.h
@@ -1,117 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2019-2023, Alejandro Colomar <alx@kernel.org>
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-
-#ifndef SHADOW_INCLUDE_LIBMISC_MUST_BE_H_
-#define SHADOW_INCLUDE_LIBMISC_MUST_BE_H_
-
-
-#include <config.h>
-
-#include <assert.h>
-
-
-/*
- * SYNOPSIS
- *	int must_be(bool e);
- *
- * ARGUMENTS
- *	e	Expression to be asserted.
- *
- * DESCRIPTION
- *	This macro fails compilation if 'e' is false.  If 'e' is true,
- *	it returns (int) 0, so it doesn't affect the expression in which
- *	it is contained.
- *
- *	This macro is similar to static_assert(3).  While
- *	static_assert(3) can only be used where a statement is allowed,
- *	this must_be() macro can be used wherever an expression is
- *	allowed.
- *
- * RETURN VALUE
- *	0
- *
- * ERRORS
- *	If 'e' is false, the compilation will fail, as when using
- *	static_assert(3).
- *
- * EXAMPLES
- *	#define must_be_array(a)  must_be(is_array(a))
- *
- *	#define NITEMS(a)  (sizeof(a) / sizeof(*(a)) + must_be_array(a))
- *
- *	int foo[42];
- *	int bar[NITEMS(foo)];
- */
-
-
-#define must_be(e)                                                            \
-(                                                                             \
-	0 * (int) sizeof(                                                     \
-		struct {                                                      \
-			static_assert(e, "");                                 \
-			int ISO_C_forbids_a_struct_with_no_members_;          \
-		}                                                             \
-	)                                                                     \
-)
-
-
-/*
- * SYNOPSIS
- *	int must_be_array(a);
- *
- * ARGUMENTS
- *	a	Array.
- *
- * DESCRIPTION
- *	This macro fails compilation if 'a' is not an array.  It is
- *	useful in macros that accept an array as a parameter, where this
- *	macro can validate the macro argument.  It prevent passing a
- *	pointer to such macros, which would otherwise produce silent
- *	bugs.
- *
- * RETURN VALUE
- *	0
- *
- * ERRORS
- *	If 'a' is not an array, the compilation will fail.
- *
- * EXAMPLES
- *	int a[10];
- *	int *p;
- *
- *	must_be_array(a);  // Ok
- *	must_be_array(p);  // Compile-time error
- *
- * SEE ALSO
- *	must_be()
- */
-
-
-#define is_same_type(a, b)                                                    \
-(                                                                             \
-	__builtin_types_compatible_p(a, b)                                    \
-)
-
-
-#define is_same_typeof(a, b)                                                  \
-(                                                                             \
-	is_same_type(typeof(a), typeof(b))                                    \
-)
-
-
-#define is_array(a)                                                           \
-(                                                                             \
-	!is_same_typeof(a, &(a)[0])                                           \
-)
-
-
-#define must_be_array(a)                                                      \
-(                                                                             \
-	must_be(is_array(a))                                                  \
-)
-
-
-#endif  // include guard
--- a/lib/nss.c
+++ b/lib/nss.c
@@ -15,7 +15,9 @@
 #include "shadowlog_internal.h"
 #include "shadowlog.h"
 #include "string/sprintf/snprintf.h"
+#include "string/strcmp/strcaseprefix.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strspn/stpspn.h"
 #include "string/strtok/stpsep.h"

@@ -79,11 +81,11 @@ nss_init(const char *nsswitch_path) {
 	}
 	p = NULL;
 	while (getline(&line, &len, nssfp) != -1) {
-		if (line[0] == '#')
+		if (strprefix(line, "#"))
 			continue;
 		if (strlen(line) < 8)
 			continue;
-		if (strncasecmp(line, "subid:", 6) != 0)
+		if (!strcaseprefix(line, "subid:"))
 			continue;
 		p = &line[6];
 		p = stpspn(p, " \t\n");
--- a/lib/obscure.c
+++ b/lib/obscure.c
@@ -1,11 +1,10 @@
-/*
- * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2007 - 2010, Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
+// SPDX-FileCopyrightText: 1989-1994, Julianne Frances Haugh
+// SPDX-FileCopyrightText: 1996-1999, Marek Michałkiewicz
+// SPDX-FileCopyrightText: 2003-2005, Tomasz Kłoczko
+// SPDX-FileCopyrightText: 2007-2010, Nicolas François
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+

 #include <config.h>

@@ -19,8 +18,9 @@
 #include "prototypes.h"
 #include "defines.h"
 #include "getdef.h"
+#include "string/ctype/strtoascii/strtolower.h"
 #include "string/memset/memzero.h"
-#include "string/sprintf/xasprintf.h"
+#include "string/sprintf/xaprintf.h"
 #include "string/strcmp/streq.h"
 #include "string/strdup/xstrdup.h"

@@ -78,15 +78,6 @@ static bool similar (/*@notnull@*/const char *old, /*@notnull@*/const char *new)
 	return true;
 }

-static char *str_lower (/*@returned@*/char *string)
-{
-	char *cp;
-
-	for (cp = string; !streq(cp, ""); cp++) {
-		*cp = tolower (*cp);
-	}
-	return string;
-}

 static /*@observer@*//*@null@*/const char *password_check (
 	/*@notnull@*/const char *old,
@@ -100,9 +91,9 @@ static /*@observer@*//*@null@*/const char *password_check (
 		return _("no change");
 	}

-	newmono = str_lower (xstrdup (new));
-	oldmono = str_lower (xstrdup (old));
-	xasprintf(&wrapped, "%s%s", oldmono, oldmono);
+	newmono = strtolower(xstrdup(new));
+	oldmono = strtolower(xstrdup(old));
+	wrapped = xaprintf("%s%s", oldmono, oldmono);

 	if (palindrome (oldmono, newmono)) {
 		msg = _("a palindrome");
--- a/lib/pam_pass.c
+++ b/lib/pam_pass.c
@@ -10,6 +10,9 @@

 #ifdef USE_PAM

+/* Copied from src/passwd.c */
+#define E_PAM_ERR	10	/* PAM returned an error */
+
 #ident "$Id$"


@@ -40,7 +43,7 @@ void do_pam_passwd (const char *user, bool silent, bool change_expired)
 	if (ret != PAM_SUCCESS) {
 		fprintf (shadow_logfd,
 			 _("passwd: pam_start() failed, error %d\n"), ret);
-		exit (10);	/* XXX */
+		exit (E_PAM_ERR);
 	}

 	ret = pam_chauthtok (pamh, flags);
@@ -48,7 +51,7 @@ void do_pam_passwd (const char *user, bool silent, bool change_expired)
 		fprintf (shadow_logfd, _("passwd: %s\n"), pam_strerror (pamh, ret));
 		fputs (_("passwd: password unchanged\n"), shadow_logfd);
 		pam_end (pamh, ret);
-		exit (10);	/* XXX */
+		exit (E_PAM_ERR);
 	}

 	fputs (_("passwd: password updated successfully\n"), shadow_logfd);
--- a/lib/port.c
+++ b/lib/port.c
@@ -20,7 +20,9 @@
 #include "port.h"
 #include "prototypes.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strtok/stpsep.h"
+#include "string/strtok/strsep2ls.h"


 static FILE *ports;
@@ -50,7 +52,7 @@ static int portcmp (const char *pattern, const char *port)
 	if (streq(orig, "SU"))
 		return 1;

-	return (*pattern == '*') ? 0 : 1;
+	return !strprefix(pattern, "*");
 }

 /*
@@ -101,7 +103,8 @@ getportent(void)
 	int   dtime;
 	int   i, j;
 	int   saveerr;
-	char  *cp, *field;
+	char  *cp;
+	char  *fields[3];

 	static char            buf[BUFSIZ];
 	static char            *ttys[PORT_TTY + 1];
@@ -140,12 +143,13 @@ next:
 		errno = saveerr;
 		return NULL;
 	}
-	if ('#' == buf[0])
+	if (strprefix(buf, "#"))
 		goto next;

 	stpsep(buf, "\n");

-	field = buf;
+	if (STRSEP2ARR(buf, ":", fields) == -1)
+		goto next;

 	/*
 	 * Get the name of the TTY device.  It is the first colon
@@ -153,19 +157,8 @@ next:
 	 * leading "/dev".  The entry '*' is used to specify all
 	 * TTY devices.
 	 */
-
-	cp = strsep(&field, ":");
-	if (field == NULL)
-		goto next;
-
 	port.pt_names = ttys;
-	for (j = 0; j < PORT_TTY; j++) {
-		port.pt_names[j] = strsep(&cp, ",");
-		if (cp == NULL)
-			break;
-	}
-	port.pt_names[j] = NULL;
-	if (cp != NULL)
+	if (STRSEP2LS(fields[0], ",", ttys) == -1)
 		goto next;

 	/*
@@ -174,19 +167,8 @@ next:
 	 * names.  The entry '*' is used to specify all usernames.
 	 * The last entry in the list is a NULL pointer.
 	 */
-
-	cp = strsep(&field, ":");
-	if (field == NULL)
-		goto next;
-
 	port.pt_users = users;
-	for (j = 0; j < PORT_IDS; j++) {
-		port.pt_users[j] = strsep(&cp, ",");
-		if (cp == NULL)
-			break;
-	}
-	port.pt_users[j] = NULL;
-	if (cp != NULL)
+	if (STRSEP2LS(fields[1], ",", users) == -1)
 		goto next;

 	/*
@@ -202,7 +184,7 @@ next:
 	 * the starting time.  Days are presumed to wrap at 0000.
 	 */

-	cp = field;
+	cp = fields[2];

 	if (streq(cp, "")) {
 		port.pt_times = NULL;
--- a/lib/prefix_flag.c
+++ b/lib/prefix_flag.c
@@ -28,8 +28,9 @@
 #endif				/* ENABLE_SUBIDS */
 #include "getdef.h"
 #include "shadowlog.h"
-#include "string/sprintf/xasprintf.h"
+#include "string/sprintf/xaprintf.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"


 static char *passwd_db_file = NULL;
@@ -53,17 +54,15 @@ static FILE* fp_grent = NULL;
 */
 extern const char* process_prefix_flag (const char* short_opt, int argc, char **argv)
 {
-	/*
-	 * Parse the command line options.
-	 */
-	int i;
-	const char *prefix = NULL, *val;
+	const char *prefix = NULL;
+
+	for (int i = 0; i < argc; i++) {
+		const char  *val;
+
+		val = strprefix(argv[i], "--prefix=");

-	for (i = 0; i < argc; i++) {
-		val = NULL;
 		if (   streq(argv[i], "--prefix")
-		    || ((strncmp (argv[i], "--prefix=", 9) == 0)
-			&& (val = argv[i] + 9))
+		    || val != NULL
 		    || streq(argv[i], short_opt))
 		{
 			if (NULL != prefix) {
@@ -109,32 +108,32 @@ extern const char* process_prefix_flag (const char* short_opt, int argc, char **
 			exit (E_BAD_ARG);
 		}

-		xasprintf(&passwd_db_file, "%s/%s", prefix, PASSWD_FILE);
+		passwd_db_file = xaprintf("%s/%s", prefix, PASSWD_FILE);
 		pw_setdbname(passwd_db_file);

-		xasprintf(&group_db_file, "%s/%s", prefix, GROUP_FILE);
+		group_db_file = xaprintf("%s/%s", prefix, GROUP_FILE);
 		gr_setdbname(group_db_file);

 #ifdef  SHADOWGRP
-		xasprintf(&sgroup_db_file, "%s/%s", prefix, SGROUP_FILE);
+		sgroup_db_file = xaprintf("%s/%s", prefix, SGROUP_FILE);
 		sgr_setdbname(sgroup_db_file);
 #endif

-		xasprintf(&spw_db_file, "%s/%s", prefix, SHADOW_FILE);
+		spw_db_file = xaprintf("%s/%s", prefix, SHADOW_FILE);
 		spw_setdbname(spw_db_file);

 #ifdef ENABLE_SUBIDS
-		xasprintf(&suid_db_file, "%s/%s", prefix, SUBUID_FILE);
+		suid_db_file = xaprintf("%s/%s", prefix, SUBUID_FILE);
 		sub_uid_setdbname(suid_db_file);

-		xasprintf(&sgid_db_file, "%s/%s", prefix, SUBGID_FILE);
+		sgid_db_file = xaprintf("%s/%s", prefix, SUBGID_FILE);
 		sub_gid_setdbname(sgid_db_file);
 #endif

 #ifdef USE_ECONF
 		setdef_config_file(prefix);
 #else
-		xasprintf(&def_conf_file, "%s/%s", prefix, "/etc/login.defs");
+		def_conf_file = xaprintf("%s/%s", prefix, "/etc/login.defs");
 		setdef_config_file(def_conf_file);
 #endif
 	}
--- a/lib/prototypes.h
+++ b/lib/prototypes.h
@@ -120,10 +120,6 @@ extern void sanitize_env (void);
 /* fd.c */
 extern void check_fds (void);

-/* fields.c */
-extern void change_field (char *, size_t, const char *);
-extern int valid_field (const char *, const char *);
-
 /* find_new_gid.c */
 extern int find_new_gid (bool sys_group,
                         gid_t *gid,
@@ -189,6 +185,9 @@ extern void audit_logger (int type, const char *pgname, const char *op,
                          const char *name, unsigned int id,
                          shadow_audit_result result);
 void audit_logger_message (const char *message, shadow_audit_result result);
+void audit_logger_with_group(int type, const char *op, const char *name,
+    id_t id, const char *grp_type, const char *grp,
+    shadow_audit_result result);
 #endif

 /* limits.c */
--- a/lib/pwio.c
+++ b/lib/pwio.c
@@ -10,13 +10,13 @@

 #include <config.h>

-#ident "$Id$"
-
-#include "prototypes.h"
-#include "defines.h"
 #include <pwd.h>
 #include <stdio.h>
+
 #include "commonio.h"
+#include "defines.h"
+#include "fields.h"
+#include "prototypes.h"
 #include "pwio.h"

 static /*@null@*/ /*@only@*/void *passwd_dup (const void *ent)
--- a/lib/root_flag.c
+++ b/lib/root_flag.c
@@ -17,6 +17,7 @@
 #include "prototypes.h"
 #include "shadowlog.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"

 #include <assert.h>

@@ -34,18 +35,17 @@ static void change_root (const char* newroot);
 */
 extern void process_root_flag (const char* short_opt, int argc, char **argv)
 {
-	/*
-	 * Parse the command line options.
-	 */
-	int i;
-	const char *newroot = NULL, *val;
+	const char *newroot = NULL;
+
+	for (int i = 0; i < argc; i++) {
+		const char  *val;
+
+		val = strprefix(argv[i], "--root=");

-	for (i = 0; i < argc; i++) {
-		val = NULL;
 		if (   streq(argv[i], "--root")
-		    || ((strncmp (argv[i], "--root=", 7) == 0)
-			&& (val = argv[i] + 7))
-		    || streq(argv[i], short_opt)) {
+		    || val != NULL
+		    || streq(argv[i], short_opt))
+		{
 			if (NULL != newroot) {
 				fprintf (log_get_logfd(),
 				         _("%s: multiple --root options\n"),
--- a/lib/run_part.c
+++ b/lib/run_part.c
@@ -13,6 +13,7 @@

 #include "run_part.h"
 #include "shadowlog_internal.h"
+#include "string/sprintf/aprintf.h"


 static int run_part(char *script_path, const char *name, const char *action)
@@ -60,8 +61,9 @@ int run_parts(const char *directory, const char *name, const char *action)
 		char         *s;
 		struct stat  sb;

-		if (asprintf(&s, "%s/%s", directory, namelist[n]->d_name) == -1) {
-			fprintf(shadow_logfd, "asprintf: %s\n", strerror(errno));
+		s = aprintf("%s/%s", directory, namelist[n]->d_name);
+		if (s == NULL) {
+			fprintf(shadow_logfd, "aprintf: %s\n", strerror(errno));
 			for (; n<scanlist; n++) {
 				free(namelist[n]);
 			}
--- a/lib/search/l/lfind.h
+++ b/lib/search/l/lfind.h
@@ -11,8 +11,8 @@
 #include <search.h>
 #include <stddef.h>

-#include "must_be.h"
 #include "search/cmp/cmp.h"
+#include "typetraits.h"

 #include <assert.h>

--- a/lib/search/l/lsearch.h
+++ b/lib/search/l/lsearch.h
@@ -10,8 +10,8 @@

 #include <search.h>

-#include "must_be.h"
 #include "search/cmp/cmp.h"
+#include "typetraits.h"

 #include <assert.h>

--- a/lib/search/sort/qsort.h
+++ b/lib/search/sort/qsort.h
@@ -10,8 +10,8 @@

 #include <stdlib.h>

-#include "must_be.h"
 #include "search/cmp/cmp.h"
+#include "typetraits.h"


 #define QSORT(a, n)  do                                               \
--- a/lib/selinux.c
+++ b/lib/selinux.c
@@ -13,9 +13,11 @@

 #include <selinux/selinux.h>
 #include <selinux/label.h>
-#include "prototypes.h"

+#include "prototypes.h"
 #include "shadowlog_internal.h"
+#include "string/sprintf/aprintf.h"
+

 static bool selinux_checked = false;
 static bool selinux_enabled;
@@ -113,18 +115,15 @@ format_attr(printf, 2, 3)
 static int selinux_log_cb (int type, const char *fmt, ...) {
 	va_list ap;
 	char *buf;
-	int r;
 #ifdef WITH_AUDIT
 	static int selinux_audit_fd = -2;
 #endif

 	va_start (ap, fmt);
-	r = vasprintf (&buf, fmt, ap);
+	buf = vaprintf(fmt, ap);
 	va_end (ap);
-
-	if (r < 0) {
+	if (buf == NULL)
 		return 0;
-	}

 #ifdef WITH_AUDIT
 	if (-2 == selinux_audit_fd) {
--- a/lib/semanage.c
+++ b/lib/semanage.c
@@ -23,8 +23,8 @@

 #include "attr.h"
 #include "prototypes.h"
-
 #include "shadowlog_internal.h"
+#include "string/sprintf/aprintf.h"


 format_attr(printf, 3, 4)
@@ -32,18 +32,14 @@ static void semanage_error_callback (MAYBE_UNUSED void *varg,
                                     semanage_handle_t *handle,
                                     const char *fmt, ...)
 {
-	int ret;
 	char * message = NULL;
 	va_list ap;

-
 	va_start (ap, fmt);
-	ret = vasprintf (&message, fmt, ap);
+	message = vaprintf(fmt, ap);
 	va_end (ap);
-	if (ret < 0) {
-		/* ENOMEM */
+	if (message == NULL)
 		return;
-	}

 	switch (semanage_msg_get_level (handle)) {
 	case SEMANAGE_MSG_ERR:
--- a/lib/setupenv.c
+++ b/lib/setupenv.c
@@ -26,8 +26,9 @@
 #include <pwd.h>
 #include "getdef.h"
 #include "shadowlog.h"
-#include "string/sprintf/xasprintf.h"
+#include "string/sprintf/xaprintf.h"
 #include "string/strcmp/streq.h"
+#include "string/strcmp/strprefix.h"
 #include "string/strdup/xstrdup.h"
 #include "string/strspn/stpspn.h"
 #include "string/strtok/stpsep.h"
@@ -39,7 +40,7 @@ addenv_path(const char *varname, const char *dirname, const char *filename)
 {
 	char  *buf;

-	xasprintf(&buf, "%s/%s", dirname, filename);
+	buf = xaprintf("%s/%s", dirname, filename);
 	addenv(varname, buf);
 	free(buf);
 }
@@ -61,7 +62,7 @@ static void read_env_file (const char *filename)
 		cp = buf;
 		/* ignore whitespace and comments */
 		cp = stpspn(cp, " \t");
-		if (streq(cp, "") || ('#' == *cp)) {
+		if (streq(cp, "") || strprefix(cp, "#")) {
 			continue;
 		}
 		/*
@@ -72,7 +73,7 @@ static void read_env_file (const char *filename)
 		val = stpsep(cp, "=");
 		if (val == NULL)
 			continue;
-		if (strpbrk(name, " \t") != NULL)
+		if (strpbrk(name, " \t"))
 			continue;
 #if 0				/* XXX untested, and needs rewrite with fewer goto's :-) */
 /*
--- a/lib/sgetgrent.c
+++ b/lib/sgetgrent.c
@@ -11,22 +11,22 @@

 #ident "$Id$"

-#include <stdio.h>
-#include <sys/types.h>
 #include <grp.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>

 #include "alloc/malloc.h"
-#include "alloc/reallocf.h"
 #include "atoi/getnum.h"
 #include "defines.h"
 #include "prototypes.h"
 #include "string/strcmp/streq.h"
 #include "string/strtok/stpsep.h"
+#include "string/strtok/strsep2arr.h"
+#include "string/strtok/astrsep2ls.h"


-#define	NFIELDS	4
-
 /*
 * list - turn a comma-separated string into an array of (char *)'s
 *
@@ -40,69 +40,52 @@ static char **
 list(char *s)
 {
 	static char **members = NULL;
-	static size_t size = 0;	/* max members + 1 */
-	size_t i;

-	i = 0;
-	for (;;) {
-		/* check if there is room for another pointer (to a group
-		   member name, or terminating NULL).  */
-		if (i >= size) {
-			size = i + 100;	/* at least: i + 1 */
-			members = REALLOCF(members, size, char *);
-			if (!members) {
-				size = 0;
-				return NULL;
-			}
-		}
-		if (!s || streq(s, ""))
-			break;
-		members[i++] = strsep(&s, ",");
-	}
-	members[i] = NULL;
+	size_t  n;
+
+	free(members);
+
+	members = astrsep2ls(s, ",", &n);
+	if (members == NULL)
+		return NULL;
+
+	if (streq(members[n-1], ""))
+		members[n-1] = NULL;
+
 	return members;
 }


-struct group *sgetgrent (const char *buf)
+struct group *
+sgetgrent(const char *s)
 {
-	static char *grpbuf = NULL;
-	static size_t size = 0;
-	static char *grpfields[NFIELDS];
+	static char         *dup = NULL;
 	static struct group grent;
-	int i;
-	char *cp;

-	if (strlen (buf) + 1 > size) {
-		/* no need to use realloc() here - just free it and
-		   allocate a larger block */
-		free (grpbuf);
-		size = strlen (buf) + 1000;	/* at least: strlen(buf) + 1 */
-		grpbuf = MALLOC(size, char);
-		if (grpbuf == NULL) {
-			size = 0;
-			return NULL;
-		}
-	}
-	strcpy (grpbuf, buf);
-	stpsep(grpbuf, "\n");
+	char  *fields[4];

-	for (cp = grpbuf, i = 0; (i < NFIELDS) && (NULL != cp); i++)
-		grpfields[i] = strsep(&cp, ":");
+	free(dup);
+	dup = strdup(s);
+	if (dup == NULL)
+		return NULL;

-	if (i < NFIELDS || streq(grpfields[2], "") || cp != NULL) {
+	stpsep(dup, "\n");
+
+	if (STRSEP2ARR(dup, ":", fields) == -1)
+		return NULL;
+
+	if (streq(fields[2], ""))
+		return NULL;
+
+	grent.gr_name = fields[0];
+	grent.gr_passwd = fields[1];
+	if (get_gid(fields[2], &grent.gr_gid) == -1) {
 		return NULL;
 	}
-	grent.gr_name = grpfields[0];
-	grent.gr_passwd = grpfields[1];
-	if (get_gid(grpfields[2], &grent.gr_gid) == -1) {
-		return NULL;
-	}
-	grent.gr_mem = list (grpfields[3]);
+	grent.gr_mem = list(fields[3]);
 	if (NULL == grent.gr_mem) {
 		return NULL;	/* out of memory */
 	}

 	return &grent;
 }
-
--- a/lib/sgetpwent.c
+++ b/lib/sgetpwent.c
@@ -11,20 +11,21 @@

 #ident "$Id$"

-#include <sys/types.h>
-#include <stdio.h>
 #include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>

 #include "atoi/getnum.h"
 #include "defines.h"
 #include "prototypes.h"
 #include "shadowlog_internal.h"
 #include "string/strcmp/streq.h"
+#include "string/strtok/stpsep.h"
+#include "string/strtok/strsep2arr.h"


-#define	NFIELDS	7
-
 /*
 * sgetpwent - convert a string to a (struct passwd)
 *
@@ -38,47 +39,26 @@
 *	compilation glarp to improve on this in the future.
 */
 struct passwd *
-sgetpwent(const char *buf)
+sgetpwent(const char *s)
 {
+	static char          *dup = NULL;
 	static struct passwd pwent;
-	static char pwdbuf[PASSWD_ENTRY_MAX_LENGTH];
-	int i;
-	char *cp;
-	char *fields[NFIELDS];

-	/*
-	 * Copy the string to a static buffer so the pointers into
-	 * the password structure remain valid.
-	 */
+	char  *fields[7];

-	if (strlen (buf) >= sizeof pwdbuf) {
-		fprintf (shadow_logfd,
-		         "%s: Too long passwd entry encountered, file corruption?\n",
-		         shadow_progname);
-		return NULL;	/* fail if too long */
-	}
-	strcpy (pwdbuf, buf);
-
-	/*
-	 * Save a pointer to the start of each colon separated
-	 * field.  The fields are converted into NUL terminated strings.
-	 */
-
-	for (cp = pwdbuf, i = 0; (i < NFIELDS) && (NULL != cp); i++)
-		fields[i] = strsep(&cp, ":");
-
-	/* something at the end, columns over shot */
-	if ( cp != NULL ) {
-		return( NULL );
-	}
-
-	/*
-	 * There must be exactly NFIELDS colon separated fields or
-	 * the entry is invalid.  Also, the UID and GID must be non-blank.
-	 */
-
-	if (i != NFIELDS)
+	free(dup);
+	dup = strdup(s);
+	if (dup == NULL)
 		return NULL;
+
+	stpsep(dup, "\n");
+
+	if (STRSEP2ARR(dup, ":", fields) == -1)
+		return NULL;
+
+	/*
+	 * The UID and GID must be non-blank.
+	 */
 	if (streq(fields[2], ""))
 		return NULL;
 	if (streq(fields[3], ""))
--- a/lib/sgetspent.c
+++ b/lib/sgetspent.c
@@ -16,16 +16,19 @@

 #include <stddef.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <string.h>

 #include "atoi/a2i/a2s.h"
-#include "atoi/str2i/str2u.h"
+#include "atoi/str2i.h"
 #include "defines.h"
 #include "prototypes.h"
 #include "shadowlog_internal.h"
+#include "sizeof.h"
 #include "string/strcmp/streq.h"
 #include "string/strtok/stpsep.h"
+#include "string/strtok/strsep2arr.h"


 #define	FIELDS	9
@@ -36,40 +39,25 @@
 * sgetspent - convert string in shadow file format to (struct spwd *)
 */
 struct spwd *
-sgetspent(const char *string)
+sgetspent(const char *s)
 {
-	static char spwbuf[PASSWD_ENTRY_MAX_LENGTH];
+	static char        *dup = NULL;
 	static struct spwd spwd;
+
 	char *fields[FIELDS];
-	char *cp;
-	int i;
+	size_t  i;

-	/*
-	 * Copy string to local buffer.  It has to be tokenized and we
-	 * have to do that to our private copy.
-	 */
+	free(dup);
+	dup = strdup(s);
+	if (dup == NULL)
+		return NULL;

-	if (strlen (string) >= sizeof spwbuf) {
-		fprintf (shadow_logfd,
-		         "%s: Too long passwd entry encountered, file corruption?\n",
-		         shadow_progname);
-		return NULL;	/* fail if too long */
-	}
-	strcpy (spwbuf, string);
-	stpsep(spwbuf, "\n");
+	stpsep(dup, "\n");

-	/*
-	 * Tokenize the string into colon separated fields.  Allow up to
-	 * FIELDS different fields.
-	 */
-
-	for (cp = spwbuf, i = 0; cp != NULL && i < FIELDS; i++)
-		fields[i] = strsep(&cp, ":");
-
-	if (i == (FIELDS - 1))
+	i = strsep2arr(dup, ":", countof(fields), fields);
+	if (i == countof(fields) - 1)
 		fields[i++] = "";
-
-	if (cp != NULL || (i != FIELDS && i != OFIELDS))
+	if (i != countof(fields) && i != OFIELDS)
 		return NULL;

 	/*
--- a/lib/sgroupio.c
+++ b/lib/sgroupio.c
@@ -19,6 +19,7 @@
 #include "prototypes.h"
 #include "defines.h"
 #include "commonio.h"
+#include "fields.h"
 #include "getdef.h"
 #include "sgroupio.h"
 #include "string/memset/memzero.h"
--- a/lib/shadow.c
+++ b/lib/shadow.c
@@ -1,113 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 1998, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2009       , Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <config.h>
-
-/* Newer versions of Linux libc already have shadow support.  */
-#ifndef HAVE_GETSPNAM
-
-#ident "$Id$"
-
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-
-#include "atoi/a2i/a2s.h"
-#include "atoi/str2i/str2u.h"
-#include "defines.h"
-#include "prototypes.h"
-#include "string/strcmp/streq.h"
-#include "string/strtok/stpsep.h"
-
-
-static FILE *shadow;
-
-#define	FIELDS	9
-#define	OFIELDS	5
-
-
-/*
- * setspent - initialize access to shadow text and DBM files
- */
-
-void setspent (void)
-{
-	if (NULL != shadow) {
-		rewind (shadow);
-	}else {
-		shadow = fopen (SHADOW_FILE, "re");
-	}
-}
-
-/*
- * endspent - terminate access to shadow text and DBM files
- */
-
-void endspent (void)
-{
-	if (NULL != shadow) {
-		(void) fclose (shadow);
-	}
-
-	shadow = NULL;
-}
-
-/*
- * fgetspent - get an entry from a /etc/shadow formatted stream
- */
-
-struct spwd *fgetspent (FILE * fp)
-{
-	char  buf[BUFSIZ];
-
-	if (NULL == fp) {
-		return (0);
-	}
-
-	if (fgets (buf, sizeof buf, fp) != NULL)
-	{
-		stpsep(buf, "\n");
-		return sgetspent(buf);
-	}
-	return 0;
-}
-
-/*
- * getspent - get a (struct spwd *) from the current shadow file
- */
-
-struct spwd *getspent (void)
-{
-	if (NULL == shadow) {
-		setspent ();
-	}
-	return (fgetspent (shadow));
-}
-
-/*
- * getspnam - get a shadow entry by name
- */
-
-struct spwd *getspnam (const char *name)
-{
-	struct spwd *sp;
-
-	setspent ();
-
-	while ((sp = getspent ()) != NULL) {
-		if (streq(name, sp->sp_namp)) {
-			break;
-		}
-	}
-	endspent ();
-	return (sp);
-}
-#else
-extern int ISO_C_forbids_an_empty_translation_unit;
-#endif
--- a/lib/shadowio.c
+++ b/lib/shadowio.c
@@ -10,20 +10,22 @@

 #include <config.h>

-#ident "$Id$"
-
-#include "prototypes.h"
-#include "defines.h"
 #include <shadow.h>
 #include <stdio.h>
+
 #include "commonio.h"
+#include "defines.h"
+#include "fields.h"
 #include "getdef.h"
+#include "prototypes.h"
 #include "shadowio.h"
+
 #ifdef WITH_TCB
 #include <tcb.h>
 #include "tcbfuncs.h"
 #endif				/* WITH_TCB */

+
 static /*@null@*/ /*@only@*/void *shadow_dup (const void *ent)
 {
 	const struct spwd *sp = ent;
--- a/lib/sizeof.h
+++ b/lib/sizeof.h
@@ -1,7 +1,5 @@
-/*
- * SPDX-FileCopyrightText: 2022-2023, Alejandro Colomar <alx@kernel.org>
- * SPDX-License-Identifier: BSD-3-Clause
- */
+// SPDX-FileCopyrightText: 2022-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause


 #ifndef SHADOW_INCLUDE_LIBMISC_SIZEOF_H_
@@ -11,15 +9,22 @@
 #include <config.h>

 #include <limits.h>
-
-#include "must_be.h"
+#if __has_include(<stdcountof.h>)
+# include <stdcountof.h>
+#endif
+#include <sys/types.h>


+#define ssizeof(x)           ((ssize_t) sizeof(x))
 #define memberof(T, member)  ((T){}.member)
 #define WIDTHOF(x)           (sizeof(x) * CHAR_BIT)
-#define SIZEOF_ARRAY(a)      (sizeof(a) + must_be_array(a))
-#define NITEMS(a)            (SIZEOF_ARRAY((a)) / sizeof((a)[0]))
-#define STRLEN(s)            (NITEMS(s) - 1)
+
+#if !defined(countof)
+# define countof(a)          (sizeof(a) / sizeof((a)[0]))
+#endif
+
+#define SIZEOF_ARRAY(a)      (countof(a) * sizeof((a)[0]))
+#define STRLEN(s)            (countof("" s "") - 1)


 #endif  // include guard
--- a/lib/string/ctype/strchrisascii/strchriscntrl.c
+++ b/lib/string/ctype/strchrisascii/strchriscntrl.c
@@ -0,0 +1,12 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/ctype/strchrisascii/strchriscntrl.h"
+
+#include <stdbool.h>
+
+
+extern inline bool strchriscntrl(const char *s);
--- a/lib/string/ctype/strchrisascii/strchriscntrl.h
+++ b/lib/string/ctype/strchrisascii/strchriscntrl.h
@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_CTYPE_STRCHRISASCII_STRCHRISCNTRL_H_
+#define SHADOW_INCLUDE_LIB_STRING_CTYPE_STRCHRISASCII_STRCHRISCNTRL_H_
+
+
+#include <config.h>
+
+#include <ctype.h>
+#include <stdbool.h>
+
+#include "string/strcmp/streq.h"
+
+
+inline bool strchriscntrl(const char *s);
+
+
+// string character is [:cntrl:]
+// Return true if any iscntrl(3) character is found in the string.
+inline bool
+strchriscntrl(const char *s)
+{
+	for (; !streq(s, ""); s++) {
+		unsigned char  c = *s;
+
+		if (iscntrl(c))
+			return true;
+	}
+
+	return false;
+}
+
+
+#endif  // include guard
--- a/lib/string/ctype/strisascii/strisprint.c
+++ b/lib/string/ctype/strisascii/strisprint.c
@@ -0,0 +1,12 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/ctype/strisascii/strisprint.h"
+
+#include <stdbool.h>
+
+
+extern inline bool strisprint(const char *s);
--- a/lib/string/ctype/strisascii/strisprint.h
+++ b/lib/string/ctype/strisascii/strisprint.h
@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_CTYPE_STRISASCII_STRISPRINT_H_
+#define SHADOW_INCLUDE_LIB_STRING_CTYPE_STRISASCII_STRISPRINT_H_
+
+
+#include <config.h>
+
+#include <ctype.h>
+#include <stdbool.h>
+
+#include "string/strcmp/streq.h"
+
+
+inline bool strisprint(const char *s);
+
+
+// string is [:print:]
+// Like isprint(3), but check all characters in the string.
+inline bool
+strisprint(const char *s)
+{
+	if (streq(s, ""))
+		return false;
+
+	for (; !streq(s, ""); s++) {
+		unsigned char  c = *s;
+
+		if (!isprint(c))
+			return false;
+	}
+
+	return true;
+}
+
+
+#endif  // include guard
--- a/lib/string/ctype/strtoascii/strtolower.c
+++ b/lib/string/ctype/strtoascii/strtolower.c
@@ -0,0 +1,10 @@
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/ctype/strtoascii/strtolower.h"
+
+
+extern inline char *strtolower(char *str);
--- a/lib/string/ctype/strtoascii/strtolower.h
+++ b/lib/string/ctype/strtoascii/strtolower.h
@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_CTYPE_STRTOASCII_STRTOLOWER_H_
+#define SHADOW_INCLUDE_LIB_STRING_CTYPE_STRTOASCII_STRTOLOWER_H_
+
+
+#include <config.h>
+
+#include <ctype.h>
+
+#include "string/strcmp/streq.h"
+
+
+inline char *strtolower(char *str);
+
+
+// string convert-to lower-case
+// Like tolower(3), but convert all characters in the string.
+// Returns the input pointer.
+inline char *
+strtolower(char *str)
+{
+	for (char *s = str; !streq(s, ""); s++) {
+		unsigned char  c = *s;
+
+		*s = tolower(c);
+	}
+	return str;
+}
+
+
+#endif  // include guard
--- a/lib/string/sprintf/aprintf.c
+++ b/lib/string/sprintf/aprintf.c
@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/sprintf/aprintf.h"
+
+#include <stdarg.h>
+
+
+extern inline char *aprintf(const char *restrict fmt, ...);
+extern inline char *vaprintf(const char *restrict fmt, va_list ap);
--- a/lib/string/sprintf/aprintf.h
+++ b/lib/string/sprintf/aprintf.h
@@ -0,0 +1,57 @@
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_SPRINTF_APRINTF_H_
+#define SHADOW_INCLUDE_LIB_STRING_SPRINTF_APRINTF_H_
+
+
+#include <config.h>
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "attr.h"
+
+
+ATTR_MALLOC(free)
+format_attr(printf, 1, 2)
+inline char *aprintf(const char *restrict fmt, ...);
+
+ATTR_MALLOC(free)
+format_attr(printf, 1, 0)
+inline char *vaprintf(const char *restrict fmt, va_list ap);
+
+
+// allocate print formatted
+// Like asprintf(3), but simpler; omit the length.
+inline char *
+aprintf(const char *restrict fmt, ...)
+{
+	char     *p;
+	va_list  ap;
+
+	va_start(ap, fmt);
+	p = vaprintf(fmt, ap);
+	va_end(ap);
+
+	return p;
+}
+
+
+// Like vasprintf(3), but simpler; omit the length.
+inline char *
+vaprintf(const char *restrict fmt, va_list ap)
+{
+	char  *p;
+
+	if (vasprintf(&p, fmt, ap) == -1)
+		return NULL;
+
+	return p;
+}
+
+
+#endif  // include guard
--- a/lib/string/sprintf/snprintf.h
+++ b/lib/string/sprintf/snprintf.h
@@ -18,7 +18,7 @@

 #define SNPRINTF(s, fmt, ...)                                                 \
 (                                                                             \
-	snprintf_(s, NITEMS(s), fmt __VA_OPT__(,) __VA_ARGS__)                \
+	snprintf_(s, countof(s), fmt __VA_OPT__(,) __VA_ARGS__)               \
 )


--- a/lib/string/sprintf/stpeprintf.h
+++ b/lib/string/sprintf/stpeprintf.h
@@ -40,7 +40,7 @@ inline char *vstpeprintf(char *dst, char *end, const char *restrict fmt,
 *
 *	end	Pointer to one after the last element of the buffer
 *		pointed to by `dst`.  Usually, it should be calculated
- *		as `dst + NITEMS(dst)`.
+ *		as `dst + countof(dst)`.
 *
 *	fmt	Format string
 *
--- a/lib/string/sprintf/xaprintf.c
+++ b/lib/string/sprintf/xaprintf.c
@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: 2023-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/sprintf/xaprintf.h"
+
+#include <stdarg.h>
+
+
+extern inline char *xaprintf(const char *restrict fmt, ...);
+extern inline char *xvaprintf(const char *restrict fmt, va_list ap);
--- a/lib/string/sprintf/xaprintf.h
+++ b/lib/string/sprintf/xaprintf.h
@@ -0,0 +1,59 @@
+// SPDX-FileCopyrightText: 2023-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_SPRINTF_XASPRINTF_H_
+#define SHADOW_INCLUDE_LIB_STRING_SPRINTF_XASPRINTF_H_
+
+
+#include <config.h>
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "attr.h"
+#include "string/sprintf/aprintf.h"
+
+
+ATTR_MALLOC(free)
+format_attr(printf, 1, 2)
+inline char *xaprintf(const char *restrict fmt, ...);
+
+ATTR_MALLOC(free)
+format_attr(printf, 1, 0)
+inline char *xvaprintf(const char *restrict fmt, va_list ap);
+
+
+// exit-on-error allocate print formatted
+inline char *
+xaprintf(const char *restrict fmt, ...)
+{
+	char     *p;
+	va_list  ap;
+
+	va_start(ap, fmt);
+	p = xvaprintf(fmt, ap);
+	va_end(ap);
+
+	return p;
+}
+
+
+inline char *
+xvaprintf(const char *restrict fmt, va_list ap)
+{
+	char  *p;
+
+	p = vaprintf(fmt, ap);
+	if (p == NULL) {
+		perror("vaprintf");
+		exit(EXIT_FAILURE);
+	}
+
+	return p;
+}
+
+
+#endif  // include guard
--- a/lib/string/sprintf/xasprintf.c
+++ b/lib/string/sprintf/xasprintf.c
@@ -1,14 +0,0 @@
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#include <config.h>
-
-#include "string/sprintf/xasprintf.h"
-
-#include <stdarg.h>
-
-
-extern inline int xasprintf(char **restrict s, const char *restrict fmt, ...);
-extern inline int xvasprintf(char **restrict s, const char *restrict fmt,
-    va_list ap);
--- a/lib/string/sprintf/xasprintf.h
+++ b/lib/string/sprintf/xasprintf.h
@@ -1,54 +0,0 @@
-// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
-// SPDX-License-Identifier: BSD-3-Clause
-
-
-#ifndef SHADOW_INCLUDE_LIB_STRING_SPRINTF_XASPRINTF_H_
-#define SHADOW_INCLUDE_LIB_STRING_SPRINTF_XASPRINTF_H_
-
-
-#include <config.h>
-
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "attr.h"
-
-
-format_attr(printf, 2, 3)
-inline int xasprintf(char **restrict s, const char *restrict fmt, ...);
-format_attr(printf, 2, 0)
-inline int xvasprintf(char **restrict s, const char *restrict fmt, va_list ap);
-
-
-inline int
-xasprintf(char **restrict s, const char *restrict fmt, ...)
-{
-	int      len;
-	va_list  ap;
-
-	va_start(ap, fmt);
-	len = xvasprintf(s, fmt, ap);
-	va_end(ap);
-
-	return len;
-}
-
-
-inline int
-xvasprintf(char **restrict s, const char *restrict fmt, va_list ap)
-{
-	int  len;
-
-	len = vasprintf(s, fmt, ap);
-	if (len == -1) {
-		perror("asprintf");
-		exit(EXIT_FAILURE);
-	}
-
-	return len;
-}
-
-
-#endif  // include guard
--- a/lib/string/strcmp/strcaseprefix.c
+++ b/lib/string/strcmp/strcaseprefix.c
@@ -0,0 +1,10 @@
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/strcmp/strcaseprefix.h"
+
+
+extern inline const char *strcaseprefix_(const char *s, const char *prefix);
--- a/lib/string/strcmp/strcaseprefix.h
+++ b/lib/string/strcmp/strcaseprefix.h
@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_STRCMP_STRCASEPREFIX_H_
+#define SHADOW_INCLUDE_LIB_STRING_STRCMP_STRCASEPREFIX_H_
+
+
+#include <config.h>
+
+#include <stddef.h>
+#include <string.h>
+
+#include "attr.h"
+#include "cast.h"
+
+
+// string case-insensitive prefix
+#define strcaseprefix(s, prefix)                                      \
+({                                                                    \
+	const char  *p_;                                              \
+                                                                      \
+	p_ = strcaseprefix_(s, prefix);                               \
+                                                                      \
+	_Generic(s,                                                   \
+		const char *:                     p_,                 \
+		const void *:                     p_,                 \
+		char *:        const_cast(char *, p_),                \
+		void *:        const_cast(char *, p_)                 \
+	);                                                            \
+})
+
+
+ATTR_STRING(1) ATTR_STRING(2)
+inline const char *strcaseprefix_(const char *s, const char *prefix);
+
+
+// strprefix_(), but case-insensitive.
+inline const char *
+strcaseprefix_(const char *s, const char *prefix)
+{
+	if (strncasecmp(s, prefix, strlen(prefix)) != 0)
+		return NULL;
+
+	return s + strlen(prefix);
+}
+
+
+#endif  // include guard
--- a/lib/string/strcmp/strprefix.c
+++ b/lib/string/strcmp/strprefix.c
@@ -0,0 +1,10 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/strcmp/strprefix.h"
+
+
+extern inline const char *strprefix_(const char *s, const char *prefix);
--- a/lib/string/strcmp/strprefix.h
+++ b/lib/string/strcmp/strprefix.h
@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_STRCMP_STRPREFIX_H_
+#define SHADOW_INCLUDE_LIB_STRING_STRCMP_STRPREFIX_H_
+
+
+#include <config.h>
+
+#include <stddef.h>
+#include <string.h>
+
+#include "attr.h"
+#include "cast.h"
+
+
+// string prefix
+#define strprefix(s, prefix)                                          \
+({                                                                    \
+	const char  *p_;                                              \
+                                                                      \
+	p_ = strprefix_(s, prefix);                                   \
+                                                                      \
+	_Generic(s,                                                   \
+		const char *:                     p_,                 \
+		const void *:                     p_,                 \
+		char *:        const_cast(char *, p_),                \
+		void *:        const_cast(char *, p_)                 \
+	);                                                            \
+})
+
+
+ATTR_STRING(1)
+ATTR_STRING(2)
+inline const char *strprefix_(const char *s, const char *prefix);
+
+
+/*
+ * Return NULL if s does not start with prefix.
+ * Return `s + strlen(prefix)` if s starts with prefix.
+ */
+inline const char *
+strprefix_(const char *s, const char *prefix)
+{
+	if (strncmp(s, prefix, strlen(prefix)) != 0)
+		return NULL;
+
+	return s + strlen(prefix);
+}
+
+
+#endif  // include guard
--- a/lib/string/strcpy/stpecpy.h
+++ b/lib/string/strcpy/stpecpy.h
@@ -32,7 +32,7 @@ inline char *stpecpy(char *dst, char *end, const char *restrict src);
 *
 *	end	Pointer to one after the last element of the buffer
 *		pointed to by `dst`.  Usually, it should be calculated
- *		as `dst + NITEMS(dst)`.
+ *		as `dst + countof(dst)`.
 *
 *	src	Source string to be copied into dst.
 *
--- a/lib/string/strcpy/strncat.h
+++ b/lib/string/strcpy/strncat.h
@@ -13,7 +13,7 @@
 #include "sizeof.h"


-#define STRNCAT(dst, src)  strncat(dst, src, NITEMS(src))
+#define STRNCAT(dst, src)  strncat(dst, src, countof(src))


 #endif  // include guard
--- a/lib/string/strcpy/strncpy.h
+++ b/lib/string/strcpy/strncpy.h
@@ -13,7 +13,7 @@
 #include "sizeof.h"


-#define STRNCPY(dst, src)  strncpy(dst, src, NITEMS(dst))
+#define STRNCPY(dst, src)  strncpy(dst, src, countof(dst))


 #endif  // include guard
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Chris Hofstaedtler	9d5ab87d61	New upstream version 4.18.0	2025-08-26 22:55:14 +02:00
Chris Hofstaedtler	a9c3448878	New upstream version 4.17.4	2025-03-29 13:24:20 +01:00