238 lines
6.2 KiB
Plaintext
Executable File
238 lines
6.2 KiB
Plaintext
Executable File
#! /bin/sh /usr/share/dpatch/dpatch-run
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## 401_cppw_src.dpatch by Nicolas FRANCOIS <nicolas.francois@centraliens.net>
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##
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## All lines beginning with `## DP:' are a description of the patch.
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## DP: Add cppw / cpgr
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@DPATCH@
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--- /dev/null
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+++ b/src/cppw.c
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@@ -0,0 +1,199 @@
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+/*
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+ cppw, cpgr copy with locking given file over the password or group file
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+ with -s will copy with locking given file over shadow or gshadow file
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+
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+ Copyright (C) 1999 Stephen Frost <sfrost@snowman.net>
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+
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+ Based on vipw, vigr by:
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+ Copyright (C) 1997 Guy Maor <maor@ece.utexas.edu>
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful, but
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+ WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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+
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+ */
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+
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+#include <config.h>
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+#include "defines.h"
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+
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+#include <errno.h>
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+#include <sys/stat.h>
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+#include <unistd.h>
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <sys/types.h>
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+#include <signal.h>
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+#include <utime.h>
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+#include "prototypes.h"
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+#include "pwio.h"
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+#include "shadowio.h"
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+#include "groupio.h"
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+#include "sgroupio.h"
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+
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+
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+static const char *progname, *filename, *filenewname;
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+static int filelocked = 0;
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+static int (*unlock)();
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+
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+/* local function prototypes */
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+static int create_backup_file (FILE *, const char *, struct stat *);
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+static void cppwexit (const char *, int, int);
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+static void cppwcopy (const char *, const char *, int (*) (void), int (*) (void));
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+int main (int, char **);
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+
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+static int
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+create_backup_file(FILE *fp, const char *backup, struct stat *sb)
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+{
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+ struct utimbuf ub;
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+ FILE *bkfp;
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+ int c;
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+ mode_t mask;
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+
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+ mask = umask(077);
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+ bkfp = fopen(backup, "w");
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+ umask(mask);
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+ if (!bkfp) return -1;
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+
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+ rewind(fp);
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+ while ((c = getc(fp)) != EOF) {
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+ if (putc(c, bkfp) == EOF) break;
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+ }
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+
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+ if (c != EOF || fflush(bkfp)) {
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+ fclose(bkfp);
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+ unlink(backup);
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+ return -1;
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+ }
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+ if ( (fsync (fileno (bkfp)) != 0)
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+ || (fclose(bkfp) != 0)) {
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+ unlink(backup);
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+ return -1;
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+ }
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+
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+ ub.actime = sb->st_atime;
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+ ub.modtime = sb->st_mtime;
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+ if (utime(backup, &ub) ||
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+ chmod(backup, sb->st_mode) ||
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+ chown(backup, sb->st_uid, sb->st_gid)) {
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+ unlink(backup);
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+ return -1;
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+ }
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+ return 0;
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+}
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+
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+static void
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+cppwexit(const char *msg, int syserr, int ret)
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+{
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+ int err = errno;
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+ if (filelocked) (*unlock)();
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+ if (msg) fprintf(stderr, "%s: %s", progname, msg);
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+ if (syserr) fprintf(stderr, ": %s", strerror(err));
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+ fprintf(stderr, "\n%s: %s is unchanged\n", progname, filename);
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+ exit(ret);
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+}
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+
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+static void
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+cppwcopy(const char *file, const char *in_file, int (*file_lock) (void), int (*file_unlock) (void))
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+{
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+ struct stat st1;
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+ FILE *f;
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+ char filenew[1024];
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+
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+ snprintf(filenew, sizeof filenew, "%s.new", file);
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+ unlock = file_unlock;
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+ filename = file;
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+ filenewname = filenew;
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+
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+ if (access(file, F_OK)) cppwexit(file, 1, 1);
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+ if (!file_lock()) cppwexit("Couldn't lock file", errno, 5);
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+ filelocked = 1;
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+
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+ /* file to copy has same owners, perm */
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+ if (stat(file, &st1)) cppwexit(file, 1, 1);
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+ if (!(f = fopen(in_file, "r"))) cppwexit(file, 1, 1);
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+ if (create_backup_file(f, filenew, &st1))
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+ cppwexit("Couldn't make backup", errno, 1);
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+
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+ /* XXX - here we should check filenew for errors; if there are any,
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+ fail w/ an appropriate error code and let the user manually fix
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+ it. Use pwck or grpck to do the check. - Stephen (Shamelessly
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+ stolen from '--marekm's comment) */
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+
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+ if (rename(filenew, file) == -1) {
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+ fprintf(stderr, "%s: can't copy %s: %s)\n",
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+ progname, filenew, strerror(errno));
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+ cppwexit(0,0,1);
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+ }
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+
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+ (*file_unlock)();
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+}
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+
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+
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+int
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+main(int argc, char **argv)
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+{
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+ int flag;
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+ int cpshadow = 0;
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+ char *in_file;
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+ char *c;
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+ int e = 1;
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+ int do_cppw;
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+
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+ progname = ((c = strrchr(*argv, '/')) ? c+1 : *argv);
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+ do_cppw = (strcmp(progname, "cpgr") != 0);
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+
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+ while ((flag = getopt(argc, argv, "ghps")) != EOF) {
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+ switch (flag) {
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+ case 'p':
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+ do_cppw = 1;
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+ break;
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+ case 'g':
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+ do_cppw = 0;
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+ break;
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+ case 's':
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+ cpshadow = 1;
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+ break;
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+ case 'h':
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+ e = 0;
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+ default:
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+ printf("Usage:\n\
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+`cppw <file>' copys over /etc/passwd `cppw -s <file>' copys over /etc/shadow\n\
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+`cpgr <file>' copys over /etc/group `cpgr -s <file>' copys over /etc/gshadow\n\
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+");
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+ exit(e);
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+ }
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+ }
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+
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+ if (optind >= argc) {
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+ cppwexit ("missing file argument, -h for usage",0,1);
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+ }
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+
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+ in_file = argv[argc - 1];
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+
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+ if (do_cppw) {
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+ if (cpshadow)
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+ cppwcopy(SHADOW_FILE, in_file, spw_lock, spw_unlock);
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+ else
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+ cppwcopy(PASSWD_FILE, in_file, pw_lock, pw_unlock);
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+ }
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+ else {
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+#ifdef SHADOWGRP
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+ if (cpshadow)
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+ cppwcopy(SGROUP_FILE, in_file, sgr_lock, sgr_unlock);
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+ else
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+#endif
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+ cppwcopy(GROUP_FILE, in_file, gr_lock, gr_unlock);
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+ }
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+
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+ return 0;
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+}
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--- a/src/Makefile.am
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+++ b/src/Makefile.am
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@@ -26,6 +26,7 @@
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sbin_PROGRAMS = nologin
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ubin_PROGRAMS = faillog lastlog chage chfn chsh expiry gpasswd newgrp passwd
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usbin_PROGRAMS = \
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+ cppw \
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chgpasswd \
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chpasswd \
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groupadd \
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@@ -82,6 +83,7 @@
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chgpasswd_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBSELINUX) $(LIBCRYPT)
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chsh_LDADD = $(LDADD) $(LIBPAM) $(LIBSELINUX) $(LIBCRYPT_NOPAM) $(LIBSKEY) $(LIBMD)
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chpasswd_LDADD = $(LDADD) $(LIBPAM) $(LIBSELINUX) $(LIBCRYPT)
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+cppw_LDADD = $(LDADD) $(LIBSELINUX)
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gpasswd_LDADD = $(LDADD) $(LIBAUDIT) $(LIBSELINUX) $(LIBCRYPT)
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groupadd_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBAUDIT) $(LIBSELINUX)
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groupdel_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBAUDIT) $(LIBSELINUX)
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--- a/po/POTFILES.in
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+++ b/po/POTFILES.in
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@@ -82,6 +82,7 @@
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src/chgpasswd.c
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src/chpasswd.c
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src/chsh.c
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+src/cppw.c
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src/expiry.c
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src/faillog.c
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src/gpasswd.c
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