Compare commits
17 Commits
table_0_02
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xemacs_20_
Author | SHA1 | Date | |
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d334a77447 | ||
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1b7d7976b1 | ||
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d7770a12c6 | ||
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5fef6560bf | ||
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75605116d0 | ||
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35943ea8fc | ||
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e166f54328 | ||
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c1cc35ac17 | ||
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0acb497216 | ||
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58707dac42 | ||
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8f14d30d11 | ||
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bde0d74282 | ||
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026e93121e | ||
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f87722233a | ||
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03c5a235ef | ||
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215ab9f17b | ||
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794a8efaed |
13
ChangeLog
13
ChangeLog
@@ -1,5 +1,18 @@
|
||||
1998-06-14 Martin Baulig <martin@home-of-linux.org>
|
||||
|
||||
* acconfig.h (HAVE_XAUTH): New tag.
|
||||
|
||||
* configure.in: Added check for `HAVE_XAUTH'.
|
||||
|
||||
* sysdeps/common/error.c (glibtop_warn_r): New function -
|
||||
same as `glibtop_error_r', but doesn't call `exit'.
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(glibtop_error_io_r, glibtop_warn_io_r): New functions,
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display `strerror (errno)' together with message.
|
||||
|
||||
* include/glibtop/global.h (TIME_WITH_SYS_TIME): including
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||||
correct headers; (HAVE_UNISTD_H): Added conditional.
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||||
Added `#include <sys/param.h>' and `#include <sys/stat.h>'.
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||||
|
||||
* acconfig.h (HAVE_LINUX_TABLE): New tag.
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||||
|
||||
* lib/lib.awk: New file.
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||||
|
@@ -35,3 +35,5 @@
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||||
#undef NEED_LIBGTOP
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||||
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||||
#undef HAVE_LINUX_TABLE
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||||
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||||
#undef HAVE_XAUTH
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||||
|
27
configure.in
27
configure.in
@@ -13,6 +13,8 @@ AC_PROG_CC
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||||
AC_STDC_HEADERS
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||||
AC_ARG_PROGRAM
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||||
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||||
AC_PROG_AWK
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||||
|
||||
AC_CHECK_TOOL(CC,gcc)
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||||
AC_CHECK_TOOL(RANLIB,ranlib)
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||||
AC_CHECK_TOOL(AS,as)
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||||
@@ -100,6 +102,30 @@ AC_CHECK_FUNCS(getcwd gettimeofday getwd putenv strdup strtoul uname)
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||||
ALL_LINGUAS="fr"
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||||
AM_GNU_GETTEXT
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||||
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AC_PATH_XTRA
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||||
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dnl The construct foo=`echo $w1 $w2 $w3` fails on some systems if $w1 = -e or -n
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dnl So we use the following instead.
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dnl XE_SPACE(var, words)
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define([XE_SPACE],[
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T=""
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for W in $2; do if test -z "$T"; then T="$W"; else T="$T $W"; fi; done
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$1="$T"
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])dnl
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dnl Autodetect Xauth
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dnl -lXau is only used by gnuclient, so use a special variable for Xauth X libs
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test -z "$with_xauth" && test "$window_system" = "none" && with_xauth=no
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test -z "$with_xauth" && { AC_CHECK_HEADER(X11/Xauth.h, ,with_xauth=no) }
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test -z "$with_xauth" && { AC_CHECK_LIB(Xau, XauGetAuthByAddr,[:],with_xauth=no, $X_LIBS) }
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test -z "$with_xauth" && with_xauth=yes
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if test "$with_xauth" = "yes"; then
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AC_DEFINE(HAVE_XAUTH)
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XE_SPACE(libs_xauth, $X_EXTRA_LIBS -lXau $libs_x $X_PRE_LIBS)
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fi
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AC_SUBST(libs_xauth)
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CFLAGS="$CFLAGS -D_IN_LIBGTOP"
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AC_SUBST(CFLAGS)
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@@ -219,6 +245,7 @@ sysdeps/kernel/Makefile
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src/Makefile
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src/server/Makefile
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src/proxy/Makefile
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src/daemon/Makefile
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||||
lib/Makefile
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||||
examples/Makefile
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support/Makefile
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||||
|
@@ -27,8 +27,16 @@
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__BEGIN_DECLS
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#define glibtop_error(p1, args...) glibtop_error_r(glibtop_global_server , p1 , ## args)
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#define glibtop_warn(p1, args...) glibtop_warn_r(glibtop_global_server , p1 , ## args)
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||||
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#define glibtop_error_io(p1, args...) glibtop_error_io_r(glibtop_global_server , p1 , ## args)
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#define glibtop_warn_io(p1, args...) glibtop_warn_io_r(glibtop_global_server , p1 , ## args)
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extern void glibtop_error_r __P((glibtop *, char *, ...));
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extern void glibtop_warn_r __P((glibtop *, char *, ...));
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extern void glibtop_error_io_r __P((glibtop *, char *, ...));
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extern void glibtop_warn_io_r __P((glibtop *, char *, ...));
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||||
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__END_DECLS
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||||
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||||
|
@@ -51,6 +51,17 @@
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# define __P(protos) ()
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#endif
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||||
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||||
#if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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||||
#else
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||||
# if HAVE_SYS_TIME_H
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||||
# include <sys/time.h>
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||||
# else
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||||
# include <time.h>
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||||
# endif
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||||
#endif
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||||
|
||||
#ifdef HAVE_GUILE
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#include <guile/gh.h>
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||||
#endif
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||||
@@ -67,7 +78,10 @@
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||||
#include <stdlib.h>
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||||
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||||
#include <stdarg.h>
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||||
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||||
#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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||||
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||||
#ifdef HAVE_MEMORY_H
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||||
#include <memory.h>
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||||
@@ -75,7 +89,9 @@
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||||
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#include <string.h>
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#include <sys/types.h>
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||||
#include <sys/param.h>
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||||
#include <sys/socket.h>
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||||
#include <sys/stat.h>
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||||
#include <signal.h>
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||||
#include <errno.h>
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||||
|
||||
|
191
include/glibtop/gnuserv.h
Normal file
191
include/glibtop/gnuserv.h
Normal file
@@ -0,0 +1,191 @@
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||||
/* -*-C-*-
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||||
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||||
Header file for the GNU Emacs server and client C code.
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||||
|
||||
This file is part of GNU Emacs.
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||||
|
||||
Copying is permitted under those conditions described by the GNU
|
||||
General Public License.
|
||||
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
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||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on
|
||||
'etc/server.c' and 'etc/emacsclient.c' from the 18.52 GNU
|
||||
Emacs distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/* HISTORY
|
||||
* 11-Nov-1990 bristor@simba
|
||||
* Added EOT stuff.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* Please see the note at the end of the README file for details.
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||||
*
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||||
* (If gnuserv came bundled with your emacs, the README file is probably
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||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
static char header_rcsid [] = "!Header: gnuserv.h,v 2.4 95/02/16 11:58:11 arup alpha !";
|
||||
#endif
|
||||
|
||||
#define NO_SHORTNAMES
|
||||
|
||||
#define PATCHLEVEL 2
|
||||
|
||||
#define NO_SHORTNAMES
|
||||
/* gnuserv should not be compiled using SOCKS */
|
||||
#define DO_NOT_SOCKSIFY
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||||
#include <glibtop.h>
|
||||
#include <glibtop/error.h>
|
||||
#undef read
|
||||
#undef write
|
||||
#undef open
|
||||
#undef close
|
||||
#undef signal
|
||||
|
||||
/* Define the communication method between server and clients:
|
||||
* You can have either or both kinds of sockets, but you can't mix
|
||||
* sockets with sysv ipc
|
||||
*/
|
||||
|
||||
|
||||
#define INTERNET_DOMAIN_SOCKETS
|
||||
#define UNIX_DOMAIN_SOCKETS
|
||||
/* #define SYSV_IPC */
|
||||
|
||||
/*
|
||||
* Define additional authentication protocols to be used. These methods will
|
||||
* be tried before falling back to the default gnuserv protocol (based on
|
||||
* the GNU_SECURE environment variable). Currently, only MIT-MAGIC-COOKIE-1
|
||||
* is also supported.
|
||||
*
|
||||
* Comment out the next line(s) if you don't want to enable the
|
||||
* appropriate authentication protocol.
|
||||
*/
|
||||
|
||||
#if defined (HAVE_XAUTH)
|
||||
#define AUTH_MAGIC_COOKIE
|
||||
#endif /* HAVE_XAUTH */
|
||||
|
||||
/*
|
||||
* stuff related to supporting MIT-MAGIC-COOKIE-1
|
||||
*/
|
||||
|
||||
#define MCOOKIE_SCREEN "999" /* screen # to use as the gnuserv cookie */
|
||||
#define MCOOKIE_NAME "MAGIC-1" /* authentication protocol name */
|
||||
#define MCOOKIE_X_NAME "MIT-MAGIC-COOKIE-1" /* as needed by X */
|
||||
|
||||
|
||||
#define DEFAUTH_NAME "GNU-SECURE" /* name of default auth protocol */
|
||||
#define AUTH_TIMEOUT 15 /* # seconds to wait for auth data */
|
||||
#define AUTH_NAMESZ 15 /* max allows auth protocol name size */
|
||||
|
||||
|
||||
/*
|
||||
* Pick a default communication scheme, if none was specified.
|
||||
*/
|
||||
|
||||
#if !defined(SYSV_IPC) && !defined(UNIX_DOMAIN_SOCKETS) && !defined(INTERNET_DOMAIN_SOCKETS)
|
||||
|
||||
#ifdef HAVE_SYSVIPC
|
||||
#define SYSV_IPC /* SYSV systems use SYSV IPC by default */
|
||||
#endif /* HAVE_SYSVIPC */
|
||||
|
||||
#ifdef BSD
|
||||
#define UNIX_DOMAIN_SOCKETS /* BSD systems use Unix Domain sockets by default */
|
||||
#endif /* BSD */
|
||||
|
||||
#endif /* No communication method pre-defined */
|
||||
|
||||
/*
|
||||
* If you are using SYSV_IPC, you might want to make the buffer size bigger
|
||||
* since it limits the size of requests and responses. Don't make it bigger
|
||||
* than your system's max message size though (usually a couple of k) or else
|
||||
* msgsend will start failing. For sockets, using the system BUFSIZ is usually
|
||||
* what you want.
|
||||
*/
|
||||
|
||||
# define GSERV_BUFSZ BUFSIZ
|
||||
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
#include <sys/ipc.h>
|
||||
#include <sys/msg.h>
|
||||
|
||||
#define send_string(s,str) \
|
||||
if (strlen(msgp->mtext) + strlen(str) < GSERV_BUFSZ) \
|
||||
strcat(msgp->mtext,str); \
|
||||
else \
|
||||
{ \
|
||||
fprintf(stderr,"%s: not enough message buffer space\n",progname); \
|
||||
exit(1); \
|
||||
} \
|
||||
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
#include <sys/socket.h>
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
#include <netdb.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#define TABLE_SIZE 101 /* The number of entries in the hash table */
|
||||
#define HASH(host) host /* Rather simplistic hash function */
|
||||
#define DEFAULT_PORT 21490 /* default port number to use is
|
||||
* DEFAULT_PORT + uid */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
#include <sys/un.h>
|
||||
#define HIDE_UNIX_SOCKET /* put the unix socket in a protected dir */
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
#define HOSTNAMSZ 255 /* max size of a hostname */
|
||||
#define REPLYSIZ 300 /* max size of reply from server to client */
|
||||
#undef FALSE
|
||||
#define FALSE 0
|
||||
#undef TRUE
|
||||
#define TRUE 1
|
||||
|
||||
extern char *optarg;
|
||||
extern int optind;
|
||||
extern char *progname;
|
||||
|
||||
/* The casts shut Sun's compiler up and are safe in the context these
|
||||
are actually used. */
|
||||
#define max2(x,y) (((int) (x) > (int) (y)) ? (x) : (y))
|
||||
#define min2(x,y) (((int) (x) < (int) (y)) ? (x) : (y))
|
||||
|
||||
#ifndef _NFILE /* rough guess at maximum number of open files */
|
||||
#define _NFILE 20
|
||||
#endif
|
||||
|
||||
#define EOT_STR "\004"
|
||||
#define EOT_CHR '\004'
|
||||
|
||||
/* connection types */
|
||||
#define CONN_UNIX 0
|
||||
#define CONN_INTERNET 1
|
||||
#define CONN_IPC 2
|
||||
|
||||
/* function declarations */
|
||||
int make_connection (char *hostarg, int portarg, int *s);
|
||||
#ifdef SYSV_IPC
|
||||
void disconnect_from_ipc_server();
|
||||
#endif
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
void send_string (int s, const char *msg);
|
||||
void disconnect_from_server (int s, int echo);
|
||||
int read_line (int s, char *dest);
|
||||
#endif
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
int internet_addr (char *host);
|
||||
#endif
|
6
kernel/ChangeLog
Normal file
6
kernel/ChangeLog
Normal file
@@ -0,0 +1,6 @@
|
||||
1998-06-14 Martin Baulig <baulig@taurus.uni-trier.de>
|
||||
|
||||
* README: Added README.
|
||||
|
||||
* kernel.patch: Patch for the Linux kernel to add the
|
||||
new system call.
|
21
kernel/README
Normal file
21
kernel/README
Normal file
@@ -0,0 +1,21 @@
|
||||
This is a new system call `table ()' for the Linux table. It is faster
|
||||
than reading from /proc and can be used to fetch all information required
|
||||
for libgtop until whe have some other function (extended sysctl, ...) in
|
||||
standard kernels.
|
||||
|
||||
I didn't want to change sysctl or some other function myself cause this may
|
||||
cause other applications relying upon those function to fail. This is
|
||||
something for the ``real'' kernel gurus ...
|
||||
|
||||
To use this new system call for libgtop, do the following:
|
||||
|
||||
* Copy this directory to /usr/src/linux/table
|
||||
* Make /usr/src/linux/include/linux/table.h symlink to /usr/src/linux/table/table.h
|
||||
* Apply the patch `kernel.patch' to the kernel, compile, install and reboot
|
||||
* Recompile libgtop (remove `config.cache' and run the `autogen.sh' again).
|
||||
|
||||
If you want to change and/or add something - feel free to do so !
|
||||
|
||||
Have fun,
|
||||
|
||||
Martin
|
49
kernel/kernel.patch
Normal file
49
kernel/kernel.patch
Normal file
@@ -0,0 +1,49 @@
|
||||
diff -ur linux-2.0.32/Makefile linux-hacked/Makefile
|
||||
--- linux-2.0.32/Makefile Fri Nov 7 19:51:05 1997
|
||||
+++ linux-hacked/Makefile Thu Jun 11 20:41:12 1998
|
||||
@@ -87,7 +87,7 @@
|
||||
# standard CFLAGS
|
||||
#
|
||||
|
||||
-CFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strength-reduce
|
||||
+CFLAGS = -Wall -Wstrict-prototypes -g -O2 -fomit-frame-pointer -fno-strength-reduce
|
||||
|
||||
ifdef CONFIG_CPP
|
||||
CFLAGS := $(CFLAGS) -x c++
|
||||
@@ -113,12 +113,12 @@
|
||||
# Include the make variables (CC, etc...)
|
||||
#
|
||||
|
||||
-ARCHIVES =kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o net/network.a
|
||||
+ARCHIVES =kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o net/network.a table/table.o
|
||||
FILESYSTEMS =fs/filesystems.a
|
||||
DRIVERS =drivers/block/block.a \
|
||||
drivers/char/char.a
|
||||
LIBS =$(TOPDIR)/lib/lib.a
|
||||
-SUBDIRS =kernel drivers mm fs net ipc lib
|
||||
+SUBDIRS =kernel drivers mm fs net ipc lib table
|
||||
|
||||
ifeq ($(CONFIG_ISDN),y)
|
||||
DRIVERS := $(DRIVERS) drivers/isdn/isdn.a
|
||||
diff -ur linux-2.0.32/arch/i386/kernel/entry.S linux-hacked/arch/i386/kernel/entry.S
|
||||
--- linux-2.0.32/arch/i386/kernel/entry.S Tue Sep 16 23:42:45 1997
|
||||
+++ linux-hacked/arch/i386/kernel/entry.S Thu Jun 11 21:37:20 1998
|
||||
@@ -699,4 +699,6 @@
|
||||
.long SYMBOL_NAME(sys_mremap)
|
||||
.long 0,0
|
||||
.long SYMBOL_NAME(sys_vm86)
|
||||
- .space (NR_syscalls-166)*4
|
||||
+ .long 0
|
||||
+ .long SYMBOL_NAME(sys_table)
|
||||
+ .space (NR_syscalls-168)*4
|
||||
diff -ur linux-2.0.32/include/asm-i386/unistd.h linux-hacked/include/asm-i386/unistd.h
|
||||
--- linux-2.0.32/include/asm-i386/unistd.h Fri Mar 22 07:34:02 1996
|
||||
+++ linux-hacked/include/asm-i386/unistd.h Thu Jun 11 21:37:03 1998
|
||||
@@ -169,6 +169,7 @@
|
||||
#define __NR_sched_rr_get_interval 161
|
||||
#define __NR_nanosleep 162
|
||||
#define __NR_mremap 163
|
||||
+#define __NR_table 168
|
||||
|
||||
/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
|
||||
#define _syscall0(type,name) \
|
620
lib/gnuclient.c
Normal file
620
lib/gnuclient.c
Normal file
@@ -0,0 +1,620 @@
|
||||
/* -*-C-*-
|
||||
Client code to allow local and remote editing of files by XEmacs.
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995 Sun Microsystems, Inc.
|
||||
Copyright (C) 1997 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of XEmacs.
|
||||
|
||||
XEmacs 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.
|
||||
|
||||
XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with XEmacs; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA.
|
||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on
|
||||
'etc/emacsclient.c' from the GNU Emacs 18.52 distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* GNUATTACH support added by Ben Wing <wing@xemacs.org>.
|
||||
* Please see the note at the end of the README file for details.
|
||||
*
|
||||
* (If gnuserv came bundled with your emacs, the README file is probably
|
||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
/* Hand-munged RCS header */
|
||||
static char rcsid [] = "!Header: gnuclient.c,v 2.2 95/12/12 01:39:21 wing nene !";
|
||||
#endif
|
||||
|
||||
#include "gnuserv.h"
|
||||
#include "getopt.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifdef HAVE_STRING_H
|
||||
#include <string.h>
|
||||
#endif /* HAVE_STRING_H */
|
||||
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif /* HAVE_UNISTD_H */
|
||||
|
||||
#include <signal.h>
|
||||
|
||||
#if !defined(SYSV_IPC) && !defined(UNIX_DOMAIN_SOCKETS) && \
|
||||
!defined(INTERNET_DOMAIN_SOCKETS)
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
fprintf (stderr, "Sorry, the Emacs server is only "
|
||||
"supported on systems that have\n");
|
||||
fprintf (stderr, "Unix Domain sockets, Internet Domain "
|
||||
"sockets or System V IPC.\n");
|
||||
exit (1);
|
||||
} /* main */
|
||||
#else /* SYSV_IPC || UNIX_DOMAIN_SOCKETS || INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
static char cwd[MAXPATHLEN+2]; /* current working directory when calculated */
|
||||
static char *cp = NULL; /* ptr into valid bit of cwd above */
|
||||
|
||||
static pid_t emacs_pid; /* Process id for emacs process */
|
||||
|
||||
void initialize_signals (void);
|
||||
|
||||
static void
|
||||
tell_emacs_to_resume (int sig)
|
||||
{
|
||||
char buffer[GSERV_BUFSZ+1];
|
||||
int s; /* socket / msqid to server */
|
||||
int connect_type; /* CONN_UNIX, CONN_INTERNET, or
|
||||
ONN_IPC */
|
||||
|
||||
/* Why is SYSV so retarded? */
|
||||
/* We want emacs to realize that we are resuming */
|
||||
signal(SIGCONT, tell_emacs_to_resume);
|
||||
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
|
||||
sprintf(buffer,"(gnuserv-eval '(resume-pid-console %d))", (int)getpid());
|
||||
send_string(s, buffer);
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
if (connect_type == (int) CONN_IPC)
|
||||
disconnect_from_ipc_server (s, msgp, FALSE);
|
||||
#else /* !SYSV_IPC */
|
||||
if (connect_type != (int) CONN_IPC)
|
||||
disconnect_from_server (s, FALSE);
|
||||
#endif /* !SYSV_IPC */
|
||||
}
|
||||
|
||||
static void
|
||||
pass_signal_to_emacs (int sig)
|
||||
{
|
||||
if (kill (emacs_pid, sig) == -1)
|
||||
{
|
||||
fprintf (stderr, "gnuattach: Could not pass signal to emacs process\n");
|
||||
exit (1);
|
||||
}
|
||||
initialize_signals ();
|
||||
}
|
||||
|
||||
void
|
||||
initialize_signals ()
|
||||
{
|
||||
/* Set up signal handler to pass relevant signals to emacs process.
|
||||
We used to send SIGSEGV, SIGBUS, SIGPIPE, SIGILL and others to
|
||||
Emacs, but I think it's better not to. I can see no reason why
|
||||
Emacs should SIGSEGV whenever gnuclient SIGSEGV-s, etc. */
|
||||
signal (SIGHUP, pass_signal_to_emacs);
|
||||
signal (SIGQUIT, pass_signal_to_emacs);
|
||||
signal (SIGINT, pass_signal_to_emacs);
|
||||
#ifdef SIGWINCH
|
||||
signal (SIGWINCH, pass_signal_to_emacs);
|
||||
#endif
|
||||
|
||||
/* We want emacs to realize that we are resuming */
|
||||
signal (SIGCONT, tell_emacs_to_resume);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
get_current_working_directory -- return the cwd.
|
||||
*/
|
||||
static char *
|
||||
get_current_working_directory (void)
|
||||
{
|
||||
if (cp == NULL)
|
||||
{ /* haven't calculated it yet */
|
||||
#ifdef BSD
|
||||
if (getwd (cwd) == 0)
|
||||
#else /* !BSD */
|
||||
if (getcwd (cwd,MAXPATHLEN) == NULL)
|
||||
#endif /* !BSD */
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to get current working directory\n",
|
||||
progname);
|
||||
exit (1);
|
||||
} /* if */
|
||||
|
||||
/* on some systems, cwd can look like '@machine/' ... */
|
||||
/* ignore everything before the first '/' */
|
||||
for (cp = cwd; *cp && *cp != '/'; ++cp)
|
||||
;
|
||||
|
||||
} /* if */
|
||||
|
||||
return cp;
|
||||
|
||||
} /* get_current_working_directory */
|
||||
|
||||
|
||||
/*
|
||||
filename_expand -- try to convert the given filename into a fully-qualified
|
||||
pathname.
|
||||
*/
|
||||
static void
|
||||
filename_expand (char *fullpath, char *filename)
|
||||
/* fullpath - returned full pathname */
|
||||
/* filename - filename to expand */
|
||||
{
|
||||
int len;
|
||||
|
||||
fullpath[0] = '\0';
|
||||
|
||||
if (filename[0] && filename[0] != '/')
|
||||
{ /* relative filename */
|
||||
strcat (fullpath, get_current_working_directory ());
|
||||
len = strlen (fullpath);
|
||||
|
||||
if (len > 0 && fullpath[len-1] == '/') /* trailing slash already? */
|
||||
; /* yep */
|
||||
else
|
||||
strcat (fullpath, "/"); /* nope, append trailing slash */
|
||||
} /* if */
|
||||
|
||||
strcat (fullpath,filename);
|
||||
|
||||
} /* filename_expand */
|
||||
|
||||
/* Encase the string in quotes, escape all the backslashes and quotes
|
||||
in string. */
|
||||
static char *
|
||||
clean_string (CONST char *s)
|
||||
{
|
||||
int i = 0;
|
||||
char *p, *res;
|
||||
|
||||
for (p = s; *p; p++, i++)
|
||||
{
|
||||
if (*p == '\\' || *p == '\"')
|
||||
++i;
|
||||
else if (*p == '\004')
|
||||
i += 3;
|
||||
}
|
||||
p = res = (char *)malloc (i + 2 + 1);
|
||||
*p++ = '\"';
|
||||
for (; *s; p++, s++)
|
||||
{
|
||||
switch (*s)
|
||||
{
|
||||
case '\\':
|
||||
*p++ = '\\';
|
||||
*p = '\\';
|
||||
break;
|
||||
case '\"':
|
||||
*p++ = '\\';
|
||||
*p = '\"';
|
||||
break;
|
||||
case '\004':
|
||||
*p++ = '\\';
|
||||
*p++ = 'C';
|
||||
*p++ = '-';
|
||||
*p = 'd';
|
||||
break;
|
||||
default:
|
||||
*p = *s;
|
||||
}
|
||||
}
|
||||
*p++ = '\"';
|
||||
*p = '\0';
|
||||
return res;
|
||||
}
|
||||
|
||||
#define GET_ARGUMENT(var, desc) do { \
|
||||
if (*(p + 1)) (var) = p + 1; \
|
||||
else \
|
||||
{ \
|
||||
if (!argv[++i]) \
|
||||
{ \
|
||||
fprintf (stderr, "%s: `%s' must be followed by an argument\n", \
|
||||
progname, desc); \
|
||||
exit (1); \
|
||||
} \
|
||||
(var) = argv[i]; \
|
||||
} \
|
||||
over = 1; \
|
||||
} while (0)
|
||||
|
||||
/* A strdup immitation. */
|
||||
static char *
|
||||
my_strdup (CONST char *s)
|
||||
{
|
||||
char *new = malloc (strlen (s) + 1);
|
||||
if (new)
|
||||
strcpy (new, s);
|
||||
return new;
|
||||
}
|
||||
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
int starting_line = 1; /* line to start editing at */
|
||||
char command[MAXPATHLEN+50]; /* emacs command buffer */
|
||||
char fullpath[MAXPATHLEN+1]; /* full pathname to file */
|
||||
char *eval_form = NULL; /* form to evaluate with `-eval' */
|
||||
char *eval_function = NULL; /* function to evaluate with `-f' */
|
||||
char *load_library = NULL; /* library to load */
|
||||
int quick = 0; /* quick edit, don't wait for user to
|
||||
finish */
|
||||
int batch = 0; /* batch mode */
|
||||
int view = 0; /* view only. */
|
||||
int nofiles = 0;
|
||||
int errflg = 0; /* option error */
|
||||
int s; /* socket / msqid to server */
|
||||
int connect_type; /* CONN_UNIX, CONN_INTERNET, or
|
||||
* CONN_IPC */
|
||||
int suppress_windows_system = 0;
|
||||
char *display = NULL;
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
char *hostarg = NULL; /* remote hostname */
|
||||
char *remotearg;
|
||||
char thishost[HOSTNAMSZ]; /* this hostname */
|
||||
char remotepath[MAXPATHLEN+1]; /* remote pathname */
|
||||
char *path;
|
||||
int rflg = 0; /* pathname given on cmdline */
|
||||
char *portarg;
|
||||
u_short port = 0; /* port to server */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
#ifdef SYSV_IPC
|
||||
struct msgbuf *msgp; /* message */
|
||||
#endif /* SYSV_IPC */
|
||||
char *tty = NULL;
|
||||
char buffer[GSERV_BUFSZ + 1]; /* buffer to read pid */
|
||||
char result[GSERV_BUFSZ + 1];
|
||||
int i;
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
memset (remotepath, 0, sizeof (remotepath));
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
progname = strrchr (argv[0], '/');
|
||||
if (progname)
|
||||
++progname;
|
||||
else
|
||||
progname = argv[0];
|
||||
|
||||
display = getenv ("DISPLAY");
|
||||
if (!display)
|
||||
suppress_windows_system = 1;
|
||||
else
|
||||
display = my_strdup (display);
|
||||
|
||||
for (i = 1; argv[i] && !errflg; i++)
|
||||
{
|
||||
if (*argv[i] != '-')
|
||||
break;
|
||||
else if (*argv[i] == '-'
|
||||
&& (*(argv[i] + 1) == '\0'
|
||||
|| (*(argv[i] + 1) == '-' && *(argv[i] + 2) == '\0')))
|
||||
{
|
||||
/* `-' or `--' */
|
||||
++i;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!strcmp (argv[i], "-batch") || !strcmp (argv[i], "--batch"))
|
||||
batch = 1;
|
||||
else if (!strcmp (argv[i], "-eval") || !strcmp (argv[i], "--eval"))
|
||||
{
|
||||
if (!argv[++i])
|
||||
{
|
||||
fprintf (stderr, "%s: `-eval' must be followed by an argument\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
eval_form = argv[i];
|
||||
}
|
||||
else if (!strcmp (argv[i], "-display") || !strcmp (argv[i], "--display"))
|
||||
{
|
||||
suppress_windows_system = 0;
|
||||
if (!argv[++i])
|
||||
{
|
||||
fprintf (stderr,
|
||||
"%s: `-display' must be followed by an argument\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
if (display)
|
||||
free (display);
|
||||
/* no need to strdup. */
|
||||
display = argv[i];
|
||||
}
|
||||
else if (!strcmp (argv[i], "-nw"))
|
||||
suppress_windows_system = 1;
|
||||
else
|
||||
{
|
||||
/* Iterate over one-letter options. */
|
||||
char *p;
|
||||
int over = 0;
|
||||
for (p = argv[i] + 1; *p && !over; p++)
|
||||
{
|
||||
switch (*p)
|
||||
{
|
||||
case 'q':
|
||||
quick = 1;
|
||||
break;
|
||||
case 'v':
|
||||
view = 1;
|
||||
break;
|
||||
case 'f':
|
||||
GET_ARGUMENT (eval_function, "-f");
|
||||
break;
|
||||
case 'l':
|
||||
GET_ARGUMENT (load_library, "-l");
|
||||
break;
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
case 'h':
|
||||
GET_ARGUMENT (hostarg, "-h");
|
||||
break;
|
||||
case 'p':
|
||||
GET_ARGUMENT (portarg, "-p");
|
||||
port = atoi (portarg);
|
||||
break;
|
||||
case 'r':
|
||||
GET_ARGUMENT (remotearg, "-r");
|
||||
strcpy (remotepath, remotearg);
|
||||
rflg = 1;
|
||||
break;
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
default:
|
||||
errflg = 1;
|
||||
}
|
||||
} /* for */
|
||||
} /* else */
|
||||
} /* for */
|
||||
|
||||
if (errflg)
|
||||
{
|
||||
fprintf (stderr,
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
"usage: %s [-nw] [-display display] [-q] [-v] [-l library]\n"
|
||||
" [-batch] [-f function] [-eval form]\n"
|
||||
" [-h host] [-p port] [-r remote-path] [[+line] file] ...\n",
|
||||
#else /* !INTERNET_DOMAIN_SOCKETS */
|
||||
"usage: %s [-nw] [-q] [-v] [-l library] [-f function] [-eval form] "
|
||||
"[[+line] path] ...\n",
|
||||
#endif /* !INTERNET_DOMAIN_SOCKETS */
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
if (batch && argv[i])
|
||||
{
|
||||
fprintf (stderr, "%s: Cannot specify `-batch' with file names\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
if (suppress_windows_system && hostarg)
|
||||
{
|
||||
fprintf (stderr, "%s: Remote editing is available only on X\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
*result = '\0';
|
||||
if (eval_function || eval_form || load_library)
|
||||
{
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS)
|
||||
connect_type = make_connection (hostarg, port, &s);
|
||||
#else
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
#endif
|
||||
sprintf (command, "(gnuserv-eval%s '(progn ", quick ? "-quickly" : "");
|
||||
send_string (s, command);
|
||||
if (load_library)
|
||||
{
|
||||
sprintf (command, " (load-library %s)", clean_string (load_library));
|
||||
send_string (s, command);
|
||||
}
|
||||
if (eval_form)
|
||||
{
|
||||
sprintf (command, " %s", eval_form);
|
||||
send_string (s, command);
|
||||
}
|
||||
if (eval_function)
|
||||
{
|
||||
sprintf (command, " (%s)", eval_function);
|
||||
send_string (s, command);
|
||||
}
|
||||
send_string (s, "))");
|
||||
send_string (s, EOT_STR);
|
||||
if (read_line (s, result) == 0)
|
||||
{
|
||||
fprintf (stderr, "%s: Could not read\n", progname);
|
||||
exit (1);
|
||||
}
|
||||
} /* eval_function || eval_form || load_library */
|
||||
else if (batch)
|
||||
{
|
||||
fprintf (stderr, "%s: `-batch' requires an evaluation\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
if (!batch)
|
||||
{
|
||||
if (suppress_windows_system)
|
||||
{
|
||||
tty = ttyname (0);
|
||||
if (!tty)
|
||||
{
|
||||
fprintf (stderr, "%s: Not connected to a tty", progname);
|
||||
exit (1);
|
||||
}
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS)
|
||||
connect_type = make_connection (hostarg, port, &s);
|
||||
#else
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
#endif
|
||||
send_string (s, "(gnuserv-eval '(emacs-pid))");
|
||||
send_string (s, EOT_STR);
|
||||
|
||||
if (read_line (s, buffer) == 0)
|
||||
{
|
||||
fprintf (stderr, "%s: Could not establish Emacs procces id\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
/* Don't do disconnect_from_server becasue we have already read
|
||||
data, and disconnect doesn't do anything else. */
|
||||
#ifndef INTERNET_DOMAIN_SOCKETS
|
||||
if (connect_type == (int) CONN_IPC)
|
||||
disconnect_from_ipc_server (s, msgp, FALSE);
|
||||
#endif /* !SYSV_IPC */
|
||||
|
||||
emacs_pid = (pid_t)atol(buffer);
|
||||
initialize_signals();
|
||||
} /* suppress_windows_system */
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS)
|
||||
connect_type = make_connection (hostarg, port, &s);
|
||||
#else
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
#endif
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
if (connect_type == (int) CONN_INTERNET)
|
||||
{
|
||||
char *ptr;
|
||||
gethostname (thishost, HOSTNAMSZ);
|
||||
if (!rflg)
|
||||
{ /* attempt to generate a path
|
||||
* to this machine */
|
||||
if ((ptr = getenv ("GNU_NODE")) != NULL)
|
||||
/* user specified a path */
|
||||
strcpy (remotepath, ptr);
|
||||
}
|
||||
#if 0 /* This is really bogus... re-enable it if you must have it! */
|
||||
#if defined (hp9000s300) || defined (hp9000s800)
|
||||
else if (strcmp (thishost,hostarg))
|
||||
{ /* try /net/thishost */
|
||||
strcpy (remotepath, "/net/"); /* (this fails using internet
|
||||
addresses) */
|
||||
strcat (remotepath, thishost);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{ /* same machines, no need for path */
|
||||
remotepath[0] = '\0'; /* default is the empty path */
|
||||
}
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
if ((msgp = (struct msgbuf *)
|
||||
malloc (sizeof *msgp + GSERV_BUFSZ)) == NULL)
|
||||
{
|
||||
fprintf (stderr, "%s: not enough memory for message buffer\n", progname);
|
||||
exit (1);
|
||||
} /* if */
|
||||
|
||||
msgp->mtext[0] = '\0'; /* ready for later strcats */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
if (suppress_windows_system)
|
||||
{
|
||||
char *term = getenv ("TERM");
|
||||
if (!term)
|
||||
{
|
||||
fprintf (stderr, "%s: unknown terminal type\n", progname);
|
||||
exit (1);
|
||||
}
|
||||
sprintf (command, "(gnuserv-edit-files '(tty %s %s %d) '(",
|
||||
clean_string (tty), clean_string (term), (int)getpid ());
|
||||
}
|
||||
else /* !suppress_windows_system */
|
||||
{
|
||||
sprintf (command, "(gnuserv-edit-files '(x %s) '(",
|
||||
clean_string (display));
|
||||
} /* !suppress_windows_system */
|
||||
send_string (s, command);
|
||||
|
||||
if (!argv[i])
|
||||
nofiles = 1;
|
||||
|
||||
for (; argv[i]; i++)
|
||||
{
|
||||
if (i < argc - 1 && *argv[i] == '+')
|
||||
starting_line = atoi (argv[i++]);
|
||||
else
|
||||
starting_line = 1;
|
||||
/* If the last argument is +something, treat it as a file. */
|
||||
if (i == argc)
|
||||
{
|
||||
starting_line = 1;
|
||||
--i;
|
||||
}
|
||||
filename_expand (fullpath, argv[i]);
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
path = malloc (strlen (remotepath) + strlen (fullpath) + 1);
|
||||
sprintf (path, "%s%s", remotepath, fullpath);
|
||||
#else
|
||||
path = my_strdup (fullpath);
|
||||
#endif
|
||||
sprintf (command, "(%d . %s)", starting_line, clean_string (path));
|
||||
send_string (s, command);
|
||||
free (path);
|
||||
} /* for */
|
||||
|
||||
sprintf (command, ")%s%s",
|
||||
(quick || (nofiles && !suppress_windows_system)) ? " 'quick" : "",
|
||||
view ? " 'view" : "");
|
||||
send_string (s, command);
|
||||
send_string (s, ")");
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
if (connect_type == (int) CONN_IPC)
|
||||
disconnect_from_ipc_server (s, msgp, FALSE);
|
||||
#else /* !SYSV_IPC */
|
||||
if (connect_type != (int) CONN_IPC)
|
||||
disconnect_from_server (s, FALSE);
|
||||
#endif /* !SYSV_IPC */
|
||||
} /* not batch */
|
||||
|
||||
if (batch && !quick)
|
||||
printf ("%s\n", result);
|
||||
|
||||
return 0;
|
||||
|
||||
} /* main */
|
||||
|
||||
#endif /* SYSV_IPC || UNIX_DOMAIN_SOCKETS || INTERNET_DOMAIN_SOCKETS */
|
620
src/daemon/gnuclient.c
Normal file
620
src/daemon/gnuclient.c
Normal file
@@ -0,0 +1,620 @@
|
||||
/* -*-C-*-
|
||||
Client code to allow local and remote editing of files by XEmacs.
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995 Sun Microsystems, Inc.
|
||||
Copyright (C) 1997 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of XEmacs.
|
||||
|
||||
XEmacs 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.
|
||||
|
||||
XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with XEmacs; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA.
|
||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on
|
||||
'etc/emacsclient.c' from the GNU Emacs 18.52 distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* GNUATTACH support added by Ben Wing <wing@xemacs.org>.
|
||||
* Please see the note at the end of the README file for details.
|
||||
*
|
||||
* (If gnuserv came bundled with your emacs, the README file is probably
|
||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
/* Hand-munged RCS header */
|
||||
static char rcsid [] = "!Header: gnuclient.c,v 2.2 95/12/12 01:39:21 wing nene !";
|
||||
#endif
|
||||
|
||||
#include "gnuserv.h"
|
||||
#include "getopt.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifdef HAVE_STRING_H
|
||||
#include <string.h>
|
||||
#endif /* HAVE_STRING_H */
|
||||
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif /* HAVE_UNISTD_H */
|
||||
|
||||
#include <signal.h>
|
||||
|
||||
#if !defined(SYSV_IPC) && !defined(UNIX_DOMAIN_SOCKETS) && \
|
||||
!defined(INTERNET_DOMAIN_SOCKETS)
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
fprintf (stderr, "Sorry, the Emacs server is only "
|
||||
"supported on systems that have\n");
|
||||
fprintf (stderr, "Unix Domain sockets, Internet Domain "
|
||||
"sockets or System V IPC.\n");
|
||||
exit (1);
|
||||
} /* main */
|
||||
#else /* SYSV_IPC || UNIX_DOMAIN_SOCKETS || INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
static char cwd[MAXPATHLEN+2]; /* current working directory when calculated */
|
||||
static char *cp = NULL; /* ptr into valid bit of cwd above */
|
||||
|
||||
static pid_t emacs_pid; /* Process id for emacs process */
|
||||
|
||||
void initialize_signals (void);
|
||||
|
||||
static void
|
||||
tell_emacs_to_resume (int sig)
|
||||
{
|
||||
char buffer[GSERV_BUFSZ+1];
|
||||
int s; /* socket / msqid to server */
|
||||
int connect_type; /* CONN_UNIX, CONN_INTERNET, or
|
||||
ONN_IPC */
|
||||
|
||||
/* Why is SYSV so retarded? */
|
||||
/* We want emacs to realize that we are resuming */
|
||||
signal(SIGCONT, tell_emacs_to_resume);
|
||||
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
|
||||
sprintf(buffer,"(gnuserv-eval '(resume-pid-console %d))", (int)getpid());
|
||||
send_string(s, buffer);
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
if (connect_type == (int) CONN_IPC)
|
||||
disconnect_from_ipc_server (s, msgp, FALSE);
|
||||
#else /* !SYSV_IPC */
|
||||
if (connect_type != (int) CONN_IPC)
|
||||
disconnect_from_server (s, FALSE);
|
||||
#endif /* !SYSV_IPC */
|
||||
}
|
||||
|
||||
static void
|
||||
pass_signal_to_emacs (int sig)
|
||||
{
|
||||
if (kill (emacs_pid, sig) == -1)
|
||||
{
|
||||
fprintf (stderr, "gnuattach: Could not pass signal to emacs process\n");
|
||||
exit (1);
|
||||
}
|
||||
initialize_signals ();
|
||||
}
|
||||
|
||||
void
|
||||
initialize_signals ()
|
||||
{
|
||||
/* Set up signal handler to pass relevant signals to emacs process.
|
||||
We used to send SIGSEGV, SIGBUS, SIGPIPE, SIGILL and others to
|
||||
Emacs, but I think it's better not to. I can see no reason why
|
||||
Emacs should SIGSEGV whenever gnuclient SIGSEGV-s, etc. */
|
||||
signal (SIGHUP, pass_signal_to_emacs);
|
||||
signal (SIGQUIT, pass_signal_to_emacs);
|
||||
signal (SIGINT, pass_signal_to_emacs);
|
||||
#ifdef SIGWINCH
|
||||
signal (SIGWINCH, pass_signal_to_emacs);
|
||||
#endif
|
||||
|
||||
/* We want emacs to realize that we are resuming */
|
||||
signal (SIGCONT, tell_emacs_to_resume);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
get_current_working_directory -- return the cwd.
|
||||
*/
|
||||
static char *
|
||||
get_current_working_directory (void)
|
||||
{
|
||||
if (cp == NULL)
|
||||
{ /* haven't calculated it yet */
|
||||
#ifdef BSD
|
||||
if (getwd (cwd) == 0)
|
||||
#else /* !BSD */
|
||||
if (getcwd (cwd,MAXPATHLEN) == NULL)
|
||||
#endif /* !BSD */
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to get current working directory\n",
|
||||
progname);
|
||||
exit (1);
|
||||
} /* if */
|
||||
|
||||
/* on some systems, cwd can look like '@machine/' ... */
|
||||
/* ignore everything before the first '/' */
|
||||
for (cp = cwd; *cp && *cp != '/'; ++cp)
|
||||
;
|
||||
|
||||
} /* if */
|
||||
|
||||
return cp;
|
||||
|
||||
} /* get_current_working_directory */
|
||||
|
||||
|
||||
/*
|
||||
filename_expand -- try to convert the given filename into a fully-qualified
|
||||
pathname.
|
||||
*/
|
||||
static void
|
||||
filename_expand (char *fullpath, char *filename)
|
||||
/* fullpath - returned full pathname */
|
||||
/* filename - filename to expand */
|
||||
{
|
||||
int len;
|
||||
|
||||
fullpath[0] = '\0';
|
||||
|
||||
if (filename[0] && filename[0] != '/')
|
||||
{ /* relative filename */
|
||||
strcat (fullpath, get_current_working_directory ());
|
||||
len = strlen (fullpath);
|
||||
|
||||
if (len > 0 && fullpath[len-1] == '/') /* trailing slash already? */
|
||||
; /* yep */
|
||||
else
|
||||
strcat (fullpath, "/"); /* nope, append trailing slash */
|
||||
} /* if */
|
||||
|
||||
strcat (fullpath,filename);
|
||||
|
||||
} /* filename_expand */
|
||||
|
||||
/* Encase the string in quotes, escape all the backslashes and quotes
|
||||
in string. */
|
||||
static char *
|
||||
clean_string (const char *s)
|
||||
{
|
||||
int i = 0;
|
||||
char *p, *res;
|
||||
|
||||
for (p = s; *p; p++, i++)
|
||||
{
|
||||
if (*p == '\\' || *p == '\"')
|
||||
++i;
|
||||
else if (*p == '\004')
|
||||
i += 3;
|
||||
}
|
||||
p = res = (char *)malloc (i + 2 + 1);
|
||||
*p++ = '\"';
|
||||
for (; *s; p++, s++)
|
||||
{
|
||||
switch (*s)
|
||||
{
|
||||
case '\\':
|
||||
*p++ = '\\';
|
||||
*p = '\\';
|
||||
break;
|
||||
case '\"':
|
||||
*p++ = '\\';
|
||||
*p = '\"';
|
||||
break;
|
||||
case '\004':
|
||||
*p++ = '\\';
|
||||
*p++ = 'C';
|
||||
*p++ = '-';
|
||||
*p = 'd';
|
||||
break;
|
||||
default:
|
||||
*p = *s;
|
||||
}
|
||||
}
|
||||
*p++ = '\"';
|
||||
*p = '\0';
|
||||
return res;
|
||||
}
|
||||
|
||||
#define GET_ARGUMENT(var, desc) do { \
|
||||
if (*(p + 1)) (var) = p + 1; \
|
||||
else \
|
||||
{ \
|
||||
if (!argv[++i]) \
|
||||
{ \
|
||||
fprintf (stderr, "%s: `%s' must be followed by an argument\n", \
|
||||
progname, desc); \
|
||||
exit (1); \
|
||||
} \
|
||||
(var) = argv[i]; \
|
||||
} \
|
||||
over = 1; \
|
||||
} while (0)
|
||||
|
||||
/* A strdup immitation. */
|
||||
static char *
|
||||
my_strdup (const char *s)
|
||||
{
|
||||
char *new = malloc (strlen (s) + 1);
|
||||
if (new)
|
||||
strcpy (new, s);
|
||||
return new;
|
||||
}
|
||||
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
int starting_line = 1; /* line to start editing at */
|
||||
char command[MAXPATHLEN+50]; /* emacs command buffer */
|
||||
char fullpath[MAXPATHLEN+1]; /* full pathname to file */
|
||||
char *eval_form = NULL; /* form to evaluate with `-eval' */
|
||||
char *eval_function = NULL; /* function to evaluate with `-f' */
|
||||
char *load_library = NULL; /* library to load */
|
||||
int quick = 0; /* quick edit, don't wait for user to
|
||||
finish */
|
||||
int batch = 0; /* batch mode */
|
||||
int view = 0; /* view only. */
|
||||
int nofiles = 0;
|
||||
int errflg = 0; /* option error */
|
||||
int s; /* socket / msqid to server */
|
||||
int connect_type; /* CONN_UNIX, CONN_INTERNET, or
|
||||
* CONN_IPC */
|
||||
int suppress_windows_system = 0;
|
||||
char *display = NULL;
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
char *hostarg = NULL; /* remote hostname */
|
||||
char *remotearg;
|
||||
char thishost[HOSTNAMSZ]; /* this hostname */
|
||||
char remotepath[MAXPATHLEN+1]; /* remote pathname */
|
||||
char *path;
|
||||
int rflg = 0; /* pathname given on cmdline */
|
||||
char *portarg;
|
||||
u_short port = 0; /* port to server */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
#ifdef SYSV_IPC
|
||||
struct msgbuf *msgp; /* message */
|
||||
#endif /* SYSV_IPC */
|
||||
char *tty = NULL;
|
||||
char buffer[GSERV_BUFSZ + 1]; /* buffer to read pid */
|
||||
char result[GSERV_BUFSZ + 1];
|
||||
int i;
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
memset (remotepath, 0, sizeof (remotepath));
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
progname = strrchr (argv[0], '/');
|
||||
if (progname)
|
||||
++progname;
|
||||
else
|
||||
progname = argv[0];
|
||||
|
||||
display = getenv ("DISPLAY");
|
||||
if (!display)
|
||||
suppress_windows_system = 1;
|
||||
else
|
||||
display = my_strdup (display);
|
||||
|
||||
for (i = 1; argv[i] && !errflg; i++)
|
||||
{
|
||||
if (*argv[i] != '-')
|
||||
break;
|
||||
else if (*argv[i] == '-'
|
||||
&& (*(argv[i] + 1) == '\0'
|
||||
|| (*(argv[i] + 1) == '-' && *(argv[i] + 2) == '\0')))
|
||||
{
|
||||
/* `-' or `--' */
|
||||
++i;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!strcmp (argv[i], "-batch") || !strcmp (argv[i], "--batch"))
|
||||
batch = 1;
|
||||
else if (!strcmp (argv[i], "-eval") || !strcmp (argv[i], "--eval"))
|
||||
{
|
||||
if (!argv[++i])
|
||||
{
|
||||
fprintf (stderr, "%s: `-eval' must be followed by an argument\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
eval_form = argv[i];
|
||||
}
|
||||
else if (!strcmp (argv[i], "-display") || !strcmp (argv[i], "--display"))
|
||||
{
|
||||
suppress_windows_system = 0;
|
||||
if (!argv[++i])
|
||||
{
|
||||
fprintf (stderr,
|
||||
"%s: `-display' must be followed by an argument\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
if (display)
|
||||
free (display);
|
||||
/* no need to strdup. */
|
||||
display = argv[i];
|
||||
}
|
||||
else if (!strcmp (argv[i], "-nw"))
|
||||
suppress_windows_system = 1;
|
||||
else
|
||||
{
|
||||
/* Iterate over one-letter options. */
|
||||
char *p;
|
||||
int over = 0;
|
||||
for (p = argv[i] + 1; *p && !over; p++)
|
||||
{
|
||||
switch (*p)
|
||||
{
|
||||
case 'q':
|
||||
quick = 1;
|
||||
break;
|
||||
case 'v':
|
||||
view = 1;
|
||||
break;
|
||||
case 'f':
|
||||
GET_ARGUMENT (eval_function, "-f");
|
||||
break;
|
||||
case 'l':
|
||||
GET_ARGUMENT (load_library, "-l");
|
||||
break;
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
case 'h':
|
||||
GET_ARGUMENT (hostarg, "-h");
|
||||
break;
|
||||
case 'p':
|
||||
GET_ARGUMENT (portarg, "-p");
|
||||
port = atoi (portarg);
|
||||
break;
|
||||
case 'r':
|
||||
GET_ARGUMENT (remotearg, "-r");
|
||||
strcpy (remotepath, remotearg);
|
||||
rflg = 1;
|
||||
break;
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
default:
|
||||
errflg = 1;
|
||||
}
|
||||
} /* for */
|
||||
} /* else */
|
||||
} /* for */
|
||||
|
||||
if (errflg)
|
||||
{
|
||||
fprintf (stderr,
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
"usage: %s [-nw] [-display display] [-q] [-v] [-l library]\n"
|
||||
" [-batch] [-f function] [-eval form]\n"
|
||||
" [-h host] [-p port] [-r remote-path] [[+line] file] ...\n",
|
||||
#else /* !INTERNET_DOMAIN_SOCKETS */
|
||||
"usage: %s [-nw] [-q] [-v] [-l library] [-f function] [-eval form] "
|
||||
"[[+line] path] ...\n",
|
||||
#endif /* !INTERNET_DOMAIN_SOCKETS */
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
if (batch && argv[i])
|
||||
{
|
||||
fprintf (stderr, "%s: Cannot specify `-batch' with file names\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
if (suppress_windows_system && hostarg)
|
||||
{
|
||||
fprintf (stderr, "%s: Remote editing is available only on X\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
*result = '\0';
|
||||
if (eval_function || eval_form || load_library)
|
||||
{
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS)
|
||||
connect_type = make_connection (hostarg, port, &s);
|
||||
#else
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
#endif
|
||||
sprintf (command, "(gnuserv-eval%s '(progn ", quick ? "-quickly" : "");
|
||||
send_string (s, command);
|
||||
if (load_library)
|
||||
{
|
||||
sprintf (command, " (load-library %s)", clean_string (load_library));
|
||||
send_string (s, command);
|
||||
}
|
||||
if (eval_form)
|
||||
{
|
||||
sprintf (command, " %s", eval_form);
|
||||
send_string (s, command);
|
||||
}
|
||||
if (eval_function)
|
||||
{
|
||||
sprintf (command, " (%s)", eval_function);
|
||||
send_string (s, command);
|
||||
}
|
||||
send_string (s, "))");
|
||||
send_string (s, EOT_STR);
|
||||
if (read_line (s, result) == 0)
|
||||
{
|
||||
fprintf (stderr, "%s: Could not read\n", progname);
|
||||
exit (1);
|
||||
}
|
||||
} /* eval_function || eval_form || load_library */
|
||||
else if (batch)
|
||||
{
|
||||
fprintf (stderr, "%s: `-batch' requires an evaluation\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
if (!batch)
|
||||
{
|
||||
if (suppress_windows_system)
|
||||
{
|
||||
tty = ttyname (0);
|
||||
if (!tty)
|
||||
{
|
||||
fprintf (stderr, "%s: Not connected to a tty", progname);
|
||||
exit (1);
|
||||
}
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS)
|
||||
connect_type = make_connection (hostarg, port, &s);
|
||||
#else
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
#endif
|
||||
send_string (s, "(gnuserv-eval '(emacs-pid))");
|
||||
send_string (s, EOT_STR);
|
||||
|
||||
if (read_line (s, buffer) == 0)
|
||||
{
|
||||
fprintf (stderr, "%s: Could not establish Emacs procces id\n",
|
||||
progname);
|
||||
exit (1);
|
||||
}
|
||||
/* Don't do disconnect_from_server becasue we have already read
|
||||
data, and disconnect doesn't do anything else. */
|
||||
#ifndef INTERNET_DOMAIN_SOCKETS
|
||||
if (connect_type == (int) CONN_IPC)
|
||||
disconnect_from_ipc_server (s, msgp, FALSE);
|
||||
#endif /* !SYSV_IPC */
|
||||
|
||||
emacs_pid = (pid_t)atol(buffer);
|
||||
initialize_signals();
|
||||
} /* suppress_windows_system */
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS)
|
||||
connect_type = make_connection (hostarg, port, &s);
|
||||
#else
|
||||
connect_type = make_connection (NULL, (u_short) 0, &s);
|
||||
#endif
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
if (connect_type == (int) CONN_INTERNET)
|
||||
{
|
||||
char *ptr;
|
||||
gethostname (thishost, HOSTNAMSZ);
|
||||
if (!rflg)
|
||||
{ /* attempt to generate a path
|
||||
* to this machine */
|
||||
if ((ptr = getenv ("GNU_NODE")) != NULL)
|
||||
/* user specified a path */
|
||||
strcpy (remotepath, ptr);
|
||||
}
|
||||
#if 0 /* This is really bogus... re-enable it if you must have it! */
|
||||
#if defined (hp9000s300) || defined (hp9000s800)
|
||||
else if (strcmp (thishost,hostarg))
|
||||
{ /* try /net/thishost */
|
||||
strcpy (remotepath, "/net/"); /* (this fails using internet
|
||||
addresses) */
|
||||
strcat (remotepath, thishost);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{ /* same machines, no need for path */
|
||||
remotepath[0] = '\0'; /* default is the empty path */
|
||||
}
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
if ((msgp = (struct msgbuf *)
|
||||
malloc (sizeof *msgp + GSERV_BUFSZ)) == NULL)
|
||||
{
|
||||
fprintf (stderr, "%s: not enough memory for message buffer\n", progname);
|
||||
exit (1);
|
||||
} /* if */
|
||||
|
||||
msgp->mtext[0] = '\0'; /* ready for later strcats */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
if (suppress_windows_system)
|
||||
{
|
||||
char *term = getenv ("TERM");
|
||||
if (!term)
|
||||
{
|
||||
fprintf (stderr, "%s: unknown terminal type\n", progname);
|
||||
exit (1);
|
||||
}
|
||||
sprintf (command, "(gnuserv-edit-files '(tty %s %s %d) '(",
|
||||
clean_string (tty), clean_string (term), (int)getpid ());
|
||||
}
|
||||
else /* !suppress_windows_system */
|
||||
{
|
||||
sprintf (command, "(gnuserv-edit-files '(x %s) '(",
|
||||
clean_string (display));
|
||||
} /* !suppress_windows_system */
|
||||
send_string (s, command);
|
||||
|
||||
if (!argv[i])
|
||||
nofiles = 1;
|
||||
|
||||
for (; argv[i]; i++)
|
||||
{
|
||||
if (i < argc - 1 && *argv[i] == '+')
|
||||
starting_line = atoi (argv[i++]);
|
||||
else
|
||||
starting_line = 1;
|
||||
/* If the last argument is +something, treat it as a file. */
|
||||
if (i == argc)
|
||||
{
|
||||
starting_line = 1;
|
||||
--i;
|
||||
}
|
||||
filename_expand (fullpath, argv[i]);
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
path = malloc (strlen (remotepath) + strlen (fullpath) + 1);
|
||||
sprintf (path, "%s%s", remotepath, fullpath);
|
||||
#else
|
||||
path = my_strdup (fullpath);
|
||||
#endif
|
||||
sprintf (command, "(%d . %s)", starting_line, clean_string (path));
|
||||
send_string (s, command);
|
||||
free (path);
|
||||
} /* for */
|
||||
|
||||
sprintf (command, ")%s%s",
|
||||
(quick || (nofiles && !suppress_windows_system)) ? " 'quick" : "",
|
||||
view ? " 'view" : "");
|
||||
send_string (s, command);
|
||||
send_string (s, ")");
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
if (connect_type == (int) CONN_IPC)
|
||||
disconnect_from_ipc_server (s, msgp, FALSE);
|
||||
#else /* !SYSV_IPC */
|
||||
if (connect_type != (int) CONN_IPC)
|
||||
disconnect_from_server (s, FALSE);
|
||||
#endif /* !SYSV_IPC */
|
||||
} /* not batch */
|
||||
|
||||
if (batch && !quick)
|
||||
printf ("%s\n", result);
|
||||
|
||||
return 0;
|
||||
|
||||
} /* main */
|
||||
|
||||
#endif /* SYSV_IPC || UNIX_DOMAIN_SOCKETS || INTERNET_DOMAIN_SOCKETS */
|
897
src/daemon/gnuserv.c
Normal file
897
src/daemon/gnuserv.c
Normal file
@@ -0,0 +1,897 @@
|
||||
/* -*-C-*-
|
||||
Server code for handling requests from clients and forwarding them
|
||||
on to the GNU Emacs process.
|
||||
|
||||
This file is part of GNU Emacs.
|
||||
|
||||
Copying is permitted under those conditions described by the GNU
|
||||
General Public License.
|
||||
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on 'etc/server.c'
|
||||
from the 18.52 GNU Emacs distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/* HISTORY
|
||||
* 11-Nov-1990 bristor@simba
|
||||
* Added EOT stuff.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* Please see the note at the end of the README file for details.
|
||||
*
|
||||
* (If gnuserv came bundled with your emacs, the README file is probably
|
||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
static char rcsid [] = "!Header: gnuserv.c,v 2.1 95/02/16 11:58:27 arup alpha !";
|
||||
#endif
|
||||
|
||||
#include "gnuserv.h"
|
||||
|
||||
#ifdef AIX
|
||||
#include <sys/select.h>
|
||||
#endif
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif /* HAVE_UNISTD_H */
|
||||
|
||||
#ifdef HAVE_STRING_H
|
||||
#include <string.h>
|
||||
#endif /* HAVE_STRING_H */
|
||||
|
||||
#if !defined(SYSV_IPC) && !defined(UNIX_DOMAIN_SOCKETS) && \
|
||||
!defined(INTERNET_DOMAIN_SOCKETS)
|
||||
main ()
|
||||
{
|
||||
fprintf (stderr,"Sorry, the Emacs server is only supported on systems that have\n");
|
||||
fprintf (stderr,"Unix Domain sockets, Internet Domain sockets or System V IPC\n");
|
||||
exit (1);
|
||||
} /* main */
|
||||
#else /* SYSV_IPC || UNIX_DOMAIN_SOCKETS || INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
|
||||
int ipc_qid = 0; /* ipc message queue id */
|
||||
int ipc_wpid = 0; /* watchdog task pid */
|
||||
|
||||
|
||||
/*
|
||||
ipc_exit -- clean up the queue id and queue, then kill the watchdog task
|
||||
if it exists. exit with the given status.
|
||||
*/
|
||||
void
|
||||
ipc_exit (int stat)
|
||||
{
|
||||
msgctl (ipc_qid,IPC_RMID,0);
|
||||
|
||||
if (ipc_wpid != 0)
|
||||
kill (ipc_wpid, SIGKILL);
|
||||
|
||||
exit (stat);
|
||||
} /* ipc_exit */
|
||||
|
||||
|
||||
/*
|
||||
ipc_handle_signal -- catch the signal given and clean up.
|
||||
*/
|
||||
void
|
||||
ipc_handle_signal(int sig)
|
||||
{
|
||||
ipc_exit (0);
|
||||
} /* ipc_handle_signal */
|
||||
|
||||
|
||||
/*
|
||||
ipc_spawn_watchdog -- spawn a watchdog task to clean up the message queue should the
|
||||
server process die.
|
||||
*/
|
||||
void
|
||||
ipc_spawn_watchdog (void)
|
||||
{
|
||||
if ((ipc_wpid = fork ()) == 0)
|
||||
{ /* child process */
|
||||
int ppid = getppid (); /* parent's process id */
|
||||
|
||||
setpgrp(); /* gnu kills process group on exit */
|
||||
|
||||
while (1)
|
||||
{
|
||||
if (kill (ppid, 0) < 0) /* ppid is no longer valid, parent
|
||||
may have died */
|
||||
{
|
||||
ipc_exit (0);
|
||||
} /* if */
|
||||
|
||||
sleep(10); /* have another go later */
|
||||
} /* while */
|
||||
} /* if */
|
||||
|
||||
} /* ipc_spawn_watchdog */
|
||||
|
||||
|
||||
/*
|
||||
ipc_init -- initialize server, setting the global msqid that can be listened on.
|
||||
*/
|
||||
void
|
||||
ipc_init (struct msgbuf **msgpp)
|
||||
{
|
||||
key_t key; /* messge key */
|
||||
char buf[GSERV_BUFSZ]; /* pathname for key */
|
||||
|
||||
sprintf (buf,"/tmp/gsrv%d",(int)geteuid ());
|
||||
creat (buf,0600);
|
||||
key = ftok (buf,1);
|
||||
|
||||
if ((ipc_qid = msgget (key,0600|IPC_CREAT)) == -1)
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to create msg queue\n", progname);
|
||||
ipc_exit (1);
|
||||
} /* if */
|
||||
|
||||
ipc_spawn_watchdog ();
|
||||
|
||||
signal (SIGTERM,ipc_handle_signal);
|
||||
signal (SIGINT,ipc_handle_signal);
|
||||
|
||||
if ((*msgpp = (struct msgbuf *)
|
||||
malloc (sizeof **msgpp + GSERV_BUFSZ)) == NULL)
|
||||
{
|
||||
fprintf (stderr,
|
||||
"%s: unable to allocate space for message buffer\n", progname);
|
||||
ipc_exit(1);
|
||||
} /* if */
|
||||
} /* ipc_init */
|
||||
|
||||
|
||||
/*
|
||||
handle_ipc_request -- accept a request from a client, pass the request on
|
||||
to the GNU Emacs process, then wait for its reply and
|
||||
pass that on to the client.
|
||||
*/
|
||||
void
|
||||
handle_ipc_request (struct msgbuf *msgp)
|
||||
{
|
||||
struct msqid_ds msg_st; /* message status */
|
||||
char buf[GSERV_BUFSZ];
|
||||
int len; /* length of message / read */
|
||||
int s, result_len; /* tag fields on the response from emacs */
|
||||
int offset = 0;
|
||||
int total = 1; /* # bytes that will actually be sent off */
|
||||
|
||||
if ((len = msgrcv (ipc_qid, msgp, GSERV_BUFSZ - 1, 1, 0)) < 0)
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to receive\n", progname);
|
||||
ipc_exit (1);
|
||||
} /* if */
|
||||
|
||||
msgctl (ipc_qid, IPC_STAT, &msg_st);
|
||||
strncpy (buf, msgp->mtext, len);
|
||||
buf[len] = '\0'; /* terminate */
|
||||
|
||||
printf ("%d %s", ipc_qid, buf);
|
||||
fflush (stdout);
|
||||
|
||||
/* now for the response from gnu */
|
||||
msgp->mtext[0] = '\0';
|
||||
|
||||
#if 0
|
||||
if ((len = read(0,buf,GSERV_BUFSZ-1)) < 0)
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to read\n", progname);
|
||||
ipc_exit (1);
|
||||
} /* if */
|
||||
|
||||
sscanf (buf, "%d:%[^\n]\n", &junk, msgp->mtext);
|
||||
#else
|
||||
|
||||
/* read in "n/m:" (n=client fd, m=message length) */
|
||||
|
||||
while (offset < (GSERV_BUFSZ-1) &&
|
||||
((len = read (0, buf + offset, 1)) > 0) &&
|
||||
buf[offset] != ':')
|
||||
{
|
||||
offset += len;
|
||||
}
|
||||
|
||||
if (len < 0)
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to read\n", progname);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* parse the response from emacs, getting client fd & result length */
|
||||
buf[offset] = '\0';
|
||||
sscanf (buf, "%d/%d", &s, &result_len);
|
||||
|
||||
while (result_len > 0)
|
||||
{
|
||||
if ((len = read(0, buf, min2 (result_len, GSERV_BUFSZ - 1))) < 0)
|
||||
{
|
||||
perror (progname);
|
||||
fprintf (stderr, "%s: unable to read\n", progname);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
/* Send this string off, but only if we have enough space */
|
||||
|
||||
if (GSERV_BUFSZ > total)
|
||||
{
|
||||
if (total + len <= GSERV_BUFSZ)
|
||||
buf[len] = 0;
|
||||
else
|
||||
buf[GSERV_BUFSZ - total] = 0;
|
||||
|
||||
send_string(s,buf);
|
||||
total += strlen(buf);
|
||||
}
|
||||
|
||||
result_len -= len;
|
||||
}
|
||||
|
||||
/* eat the newline */
|
||||
while ((len = read (0,buf,1)) == 0)
|
||||
;
|
||||
if (len < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf (stderr,"%s: unable to read\n", progname);
|
||||
exit (1);
|
||||
}
|
||||
if (buf[0] != '\n')
|
||||
{
|
||||
fprintf (stderr,"%s: garbage after result [%c]\n", progname, buf[0]);
|
||||
exit (1);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Send a response back to the client. */
|
||||
|
||||
msgp->mtype = msg_st.msg_lspid;
|
||||
if (msgsnd (ipc_qid,msgp,strlen(msgp->mtext)+1,0) < 0)
|
||||
perror ("msgsend(gnuserv)");
|
||||
|
||||
} /* handle_ipc_request */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
/*
|
||||
echo_request -- read request from a given socket descriptor, and send the information
|
||||
to stdout (the gnu process).
|
||||
*/
|
||||
static void
|
||||
echo_request (int s)
|
||||
{
|
||||
char buf[GSERV_BUFSZ];
|
||||
int len;
|
||||
|
||||
printf("%d ",s);
|
||||
|
||||
/* read until we get a newline or no characters */
|
||||
while ((len = recv(s,buf,GSERV_BUFSZ-1,0)) > 0) {
|
||||
buf[len] = '\0';
|
||||
printf("%s",buf);
|
||||
|
||||
if (buf[len-1] == EOT_CHR) {
|
||||
fflush(stdout);
|
||||
break; /* end of message */
|
||||
}
|
||||
|
||||
} /* while */
|
||||
|
||||
if (len < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to recv\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
} /* echo_request */
|
||||
|
||||
|
||||
/*
|
||||
handle_response -- accept a response from stdin (the gnu process) and pass the
|
||||
information on to the relevant client.
|
||||
*/
|
||||
static void
|
||||
handle_response (void)
|
||||
{
|
||||
char buf[GSERV_BUFSZ+1];
|
||||
int offset=0;
|
||||
int s;
|
||||
int len;
|
||||
int result_len;
|
||||
|
||||
/* read in "n/m:" (n=client fd, m=message length) */
|
||||
while (offset < GSERV_BUFSZ &&
|
||||
((len = read(0,buf+offset,1)) > 0) &&
|
||||
buf[offset] != ':') {
|
||||
offset += len;
|
||||
}
|
||||
|
||||
if (len < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to read\n",progname);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* parse the response from emacs, getting client fd & result length */
|
||||
buf[offset] = '\0';
|
||||
sscanf(buf,"%d/%d", &s, &result_len);
|
||||
|
||||
while (result_len > 0) {
|
||||
if ((len = read(0,buf,min2(result_len,GSERV_BUFSZ))) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to read\n",progname);
|
||||
exit(1);
|
||||
}
|
||||
buf[len] = '\0';
|
||||
send_string(s,buf);
|
||||
result_len -= len;
|
||||
}
|
||||
|
||||
/* eat the newline */
|
||||
while ((len = read(0,buf,1)) == 0)
|
||||
;
|
||||
if (len < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to read\n",progname);
|
||||
exit(1);
|
||||
}
|
||||
if (buf[0] != '\n')
|
||||
{
|
||||
fprintf(stderr,"%s: garbage after result\n",progname);
|
||||
exit(1);
|
||||
}
|
||||
/* send the newline */
|
||||
buf[1] = '\0';
|
||||
send_string(s,buf);
|
||||
close(s);
|
||||
|
||||
} /* handle_response */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
struct entry {
|
||||
u_long host_addr;
|
||||
struct entry *next;
|
||||
};
|
||||
|
||||
struct entry *permitted_hosts[TABLE_SIZE];
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
# include <X11/X.h>
|
||||
# include <X11/Xauth.h>
|
||||
|
||||
static Xauth *server_xauth = NULL;
|
||||
#endif
|
||||
|
||||
static int
|
||||
timed_read (int fd, char *buf, int max, int timeout, int one_line)
|
||||
{
|
||||
fd_set rmask;
|
||||
struct timeval tv; /* = {timeout, 0}; */
|
||||
char c = 0;
|
||||
int nbytes = 0;
|
||||
int r;
|
||||
|
||||
tv.tv_sec = timeout;
|
||||
tv.tv_usec = 0;
|
||||
|
||||
FD_ZERO(&rmask);
|
||||
FD_SET(fd, &rmask);
|
||||
|
||||
do
|
||||
{
|
||||
r = select(fd + 1, &rmask, NULL, NULL, &tv);
|
||||
|
||||
if (r > 0)
|
||||
{
|
||||
if (read (fd, &c, 1) == 1 )
|
||||
{
|
||||
*buf++ = c;
|
||||
++nbytes;
|
||||
}
|
||||
else
|
||||
{
|
||||
printf ("read error on socket\004\n");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
else if (r == 0)
|
||||
{
|
||||
printf ("read timed out\004\n");
|
||||
return -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
printf ("error in select\004\n");
|
||||
return -1;
|
||||
}
|
||||
} while ((nbytes < max) && !(one_line && (c == '\n')));
|
||||
|
||||
--buf;
|
||||
if (one_line && *buf == '\n')
|
||||
{
|
||||
*buf = 0;
|
||||
}
|
||||
|
||||
return nbytes;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
permitted -- return whether a given host is allowed to connect to the server.
|
||||
*/
|
||||
static int
|
||||
permitted (u_long host_addr, int fd)
|
||||
{
|
||||
int key;
|
||||
struct entry *entry;
|
||||
|
||||
char auth_protocol[128];
|
||||
char buf[1024];
|
||||
int auth_data_len;
|
||||
|
||||
if (fd > 0)
|
||||
{
|
||||
/* we are checking permission on a real connection */
|
||||
|
||||
/* Read auth protocol name */
|
||||
|
||||
if (timed_read(fd, auth_protocol, AUTH_NAMESZ, AUTH_TIMEOUT, 1) <= 0)
|
||||
return FALSE;
|
||||
|
||||
if (strcmp (auth_protocol, DEFAUTH_NAME) &&
|
||||
strcmp (auth_protocol, MCOOKIE_NAME))
|
||||
{
|
||||
printf ("authentication protocol (%s) from client is invalid...\n",
|
||||
auth_protocol);
|
||||
printf ("... Was the client an old version of gnuclient/gnudoit?\004\n");
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (!strcmp(auth_protocol, MCOOKIE_NAME))
|
||||
{
|
||||
|
||||
/*
|
||||
* doing magic cookie auth
|
||||
*/
|
||||
|
||||
if (timed_read(fd, buf, 10, AUTH_TIMEOUT, 1) <= 0)
|
||||
return FALSE;
|
||||
|
||||
auth_data_len = atoi(buf);
|
||||
|
||||
if (timed_read(fd, buf, auth_data_len, AUTH_TIMEOUT, 0) != auth_data_len)
|
||||
return FALSE;
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
if (server_xauth && server_xauth->data &&
|
||||
!memcmp(buf, server_xauth->data, auth_data_len))
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
#else
|
||||
printf ("client tried Xauth, but server is not compiled with Xauth\n");
|
||||
#endif
|
||||
|
||||
/*
|
||||
* auth failed, but allow this to fall through to the GNU_SECURE
|
||||
* protocol....
|
||||
*/
|
||||
|
||||
printf ("Xauth authentication failed, trying GNU_SECURE auth...\004\n");
|
||||
|
||||
}
|
||||
|
||||
/* Other auth protocols go here, and should execute only if the
|
||||
* auth_protocol name matches.
|
||||
*/
|
||||
|
||||
}
|
||||
|
||||
|
||||
/* Now, try the old GNU_SECURE stuff... */
|
||||
|
||||
/* First find the hash key */
|
||||
key = HASH(host_addr) % TABLE_SIZE;
|
||||
|
||||
/* Now check the chain for that hash key */
|
||||
for(entry=permitted_hosts[key]; entry != NULL; entry=entry->next)
|
||||
if (host_addr == entry->host_addr)
|
||||
return(TRUE);
|
||||
|
||||
return(FALSE);
|
||||
|
||||
} /* permitted */
|
||||
|
||||
|
||||
/*
|
||||
add_host -- add the given host to the list of permitted hosts, provided it isn't
|
||||
already there.
|
||||
*/
|
||||
static void
|
||||
add_host (u_long host_addr)
|
||||
{
|
||||
int key;
|
||||
struct entry *new_entry;
|
||||
|
||||
if (!permitted(host_addr, -1))
|
||||
{
|
||||
if ((new_entry = (struct entry *) malloc(sizeof(struct entry))) == NULL) {
|
||||
fprintf(stderr,"%s: unable to malloc space for permitted host entry\n",
|
||||
progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
new_entry->host_addr = host_addr;
|
||||
key = HASH(host_addr) % TABLE_SIZE;
|
||||
new_entry->next = permitted_hosts[key];
|
||||
permitted_hosts[key] = new_entry;
|
||||
} /* if */
|
||||
|
||||
} /* add_host */
|
||||
|
||||
|
||||
/*
|
||||
setup_table -- initialise the table of hosts allowed to contact the server,
|
||||
by reading from the file specified by the GNU_SECURE
|
||||
environment variable
|
||||
Put in the local machine, and, if a security file is specifed,
|
||||
add each host that is named in the file.
|
||||
Return the number of hosts added.
|
||||
*/
|
||||
static int
|
||||
setup_table (void)
|
||||
{
|
||||
FILE *host_file;
|
||||
char *file_name;
|
||||
char hostname[HOSTNAMSZ];
|
||||
u_int host_addr;
|
||||
int i, hosts=0;
|
||||
|
||||
/* Make sure every entry is null */
|
||||
for (i=0; i<TABLE_SIZE; i++)
|
||||
permitted_hosts[i] = NULL;
|
||||
|
||||
gethostname(hostname,HOSTNAMSZ);
|
||||
|
||||
if ((host_addr = internet_addr(hostname)) == -1)
|
||||
{
|
||||
fprintf(stderr,"%s: unable to find %s in /etc/hosts or from YP",
|
||||
progname,hostname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
|
||||
server_xauth = XauGetAuthByAddr (FamilyInternet,
|
||||
sizeof(host_addr), (char *)&host_addr,
|
||||
strlen(MCOOKIE_SCREEN), MCOOKIE_SCREEN,
|
||||
strlen(MCOOKIE_X_NAME), MCOOKIE_X_NAME);
|
||||
hosts++;
|
||||
|
||||
#endif /* AUTH_MAGIC_COOKIE */
|
||||
|
||||
|
||||
#if 0 /* Don't even want to allow access from the local host by default */
|
||||
add_host(host_addr); /* add local host */
|
||||
#endif
|
||||
|
||||
if (((file_name = getenv("GNU_SECURE")) != NULL && /* security file */
|
||||
(host_file = fopen(file_name,"r")) != NULL)) /* opened ok */
|
||||
{
|
||||
while ((fscanf(host_file,"%s",hostname) != EOF)) /* find a host */
|
||||
if ((host_addr = internet_addr(hostname)) != -1)/* get its addr */
|
||||
{
|
||||
add_host(host_addr); /* add the addr */
|
||||
hosts++;
|
||||
}
|
||||
fclose(host_file);
|
||||
} /* if */
|
||||
|
||||
return hosts;
|
||||
} /* setup_table */
|
||||
|
||||
|
||||
/*
|
||||
internet_init -- initialize server, returning an internet socket that can
|
||||
be listened on.
|
||||
*/
|
||||
static int
|
||||
internet_init (void)
|
||||
{
|
||||
int ls; /* socket descriptor */
|
||||
struct servent *sp; /* pointer to service information */
|
||||
struct sockaddr_in server; /* for local socket address */
|
||||
char *ptr; /* ptr to return from getenv */
|
||||
|
||||
if (setup_table() == 0)
|
||||
return -1;
|
||||
|
||||
/* clear out address structure */
|
||||
memset((char *)&server,0,sizeof(struct sockaddr_in));
|
||||
|
||||
/* Set up address structure for the listen socket. */
|
||||
server.sin_family = AF_INET;
|
||||
server.sin_addr.s_addr = INADDR_ANY;
|
||||
|
||||
/* Find the information for the gnu server
|
||||
* in order to get the needed port number.
|
||||
*/
|
||||
if ((ptr=getenv("GNU_PORT")) != NULL)
|
||||
server.sin_port = htons(atoi(ptr));
|
||||
else if ((sp = getservbyname ("gnuserv", "tcp")) == NULL)
|
||||
server.sin_port = htons(DEFAULT_PORT+getuid());
|
||||
else
|
||||
server.sin_port = sp->s_port;
|
||||
|
||||
/* Create the listen socket. */
|
||||
if ((ls = socket (AF_INET,SOCK_STREAM, 0)) == -1)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to create socket\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
/* Bind the listen address to the socket. */
|
||||
if (bind(ls,(struct sockaddr *) &server,sizeof(struct sockaddr_in)) == -1)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to bind socket\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
/* Initiate the listen on the socket so remote users
|
||||
* can connect.
|
||||
*/
|
||||
if (listen(ls,20) == -1)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to listen\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
return(ls);
|
||||
|
||||
} /* internet_init */
|
||||
|
||||
|
||||
/*
|
||||
handle_internet_request -- accept a request from a client and send the information
|
||||
to stdout (the gnu process).
|
||||
*/
|
||||
static void
|
||||
handle_internet_request (int ls)
|
||||
{
|
||||
int s;
|
||||
size_t addrlen = sizeof(struct sockaddr_in);
|
||||
struct sockaddr_in peer; /* for peer socket address */
|
||||
|
||||
memset((char *)&peer,0,sizeof(struct sockaddr_in));
|
||||
|
||||
if ((s = accept(ls,(struct sockaddr *)&peer, (void *) &addrlen)) == -1)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to accept\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
/* Check that access is allowed - if not return crud to the client */
|
||||
if (!permitted(peer.sin_addr.s_addr, s))
|
||||
{
|
||||
send_string(s,"gnudoit: Connection refused\ngnudoit: unable to connect to remote");
|
||||
close(s);
|
||||
|
||||
printf("Refused connection from %s\004\n", inet_ntoa(peer.sin_addr));
|
||||
return;
|
||||
} /* if */
|
||||
|
||||
echo_request(s);
|
||||
|
||||
} /* handle_internet_request */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
/*
|
||||
unix_init -- initialize server, returning an unix-domain socket that can
|
||||
be listened on.
|
||||
*/
|
||||
static int
|
||||
unix_init (void)
|
||||
{
|
||||
int ls; /* socket descriptor */
|
||||
struct sockaddr_un server; /* unix socket address */
|
||||
int bindlen;
|
||||
|
||||
if ((ls = socket(AF_UNIX,SOCK_STREAM, 0)) < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to create socket\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
/* Set up address structure for the listen socket. */
|
||||
#ifdef HIDE_UNIX_SOCKET
|
||||
sprintf(server.sun_path,"/tmp/gsrvdir%d",(int)geteuid());
|
||||
if (mkdir(server.sun_path, 0700) < 0)
|
||||
{
|
||||
/* assume it already exists, and try to set perms */
|
||||
if (chmod(server.sun_path, 0700) < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: can't set permissions on %s\n",
|
||||
progname, server.sun_path);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
strcat(server.sun_path,"/gsrv");
|
||||
unlink(server.sun_path); /* remove old file if it exists */
|
||||
#else /* HIDE_UNIX_SOCKET */
|
||||
sprintf(server.sun_path,"/tmp/gsrv%d",(int)geteuid());
|
||||
unlink(server.sun_path); /* remove old file if it exists */
|
||||
#endif /* HIDE_UNIX_SOCKET */
|
||||
|
||||
server.sun_family = AF_UNIX;
|
||||
#ifdef HAVE_SOCKADDR_SUN_LEN
|
||||
/* See W. R. Stevens "Advanced Programming in the Unix Environment"
|
||||
p. 502 */
|
||||
bindlen = (sizeof (server.sun_len) + sizeof (server.sun_family)
|
||||
+ strlen (server.sun_path) + 1);
|
||||
server.sun_len = bindlen;
|
||||
#else
|
||||
bindlen = strlen (server.sun_path) + sizeof (server.sun_family);
|
||||
#endif
|
||||
|
||||
if (bind(ls,(struct sockaddr *)&server,bindlen) < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to bind socket\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
chmod(server.sun_path,0700); /* only this user can send commands */
|
||||
|
||||
if (listen(ls,20) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to listen\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
/* #### there are also better ways of dealing with this when
|
||||
sigvec() is present. */
|
||||
#if defined (HAVE_SIGPROCMASK)
|
||||
{
|
||||
sigset_t _mask;
|
||||
sigemptyset (&_mask);
|
||||
sigaddset (&_mask, SIGPIPE);
|
||||
sigprocmask (SIG_BLOCK, &_mask, NULL);
|
||||
}
|
||||
#else
|
||||
signal(SIGPIPE,SIG_IGN); /* in case user kills client */
|
||||
#endif
|
||||
|
||||
return(ls);
|
||||
|
||||
} /* unix_init */
|
||||
|
||||
|
||||
/*
|
||||
handle_unix_request -- accept a request from a client and send the information
|
||||
to stdout (the gnu process).
|
||||
*/
|
||||
static void
|
||||
handle_unix_request (int ls)
|
||||
{
|
||||
int s;
|
||||
size_t len = sizeof(struct sockaddr_un);
|
||||
struct sockaddr_un server; /* for unix socket address */
|
||||
|
||||
server.sun_family = AF_UNIX;
|
||||
|
||||
if ((s = accept(ls,(struct sockaddr *)&server, (void *)&len)) < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to accept\n",progname);
|
||||
} /* if */
|
||||
|
||||
echo_request(s);
|
||||
|
||||
} /* handle_unix_request */
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
int
|
||||
main(argc,argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{
|
||||
int chan; /* temporary channel number */
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
int ils = -1; /* internet domain listen socket */
|
||||
#endif
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
int uls = -1; /* unix domain listen socket */
|
||||
#endif
|
||||
#ifdef SYSV_IPC
|
||||
struct msgbuf *msgp; /* message buffer */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
progname = argv[0];
|
||||
|
||||
for(chan=3; chan < _NFILE; close(chan++)) /* close unwanted channels */
|
||||
;
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
ipc_init(&msgp); /* get a msqid to listen on, and a message buffer */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
ils = internet_init(); /* get a internet domain socket to listen on */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
uls = unix_init(); /* get a unix domain socket to listen on */
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
while (1) {
|
||||
#ifdef SYSV_IPC
|
||||
handle_ipc_request(msgp);
|
||||
#else /* NOT SYSV_IPC */
|
||||
fd_set rmask;
|
||||
FD_ZERO(&rmask);
|
||||
FD_SET(fileno(stdin), &rmask);
|
||||
if (uls >= 0)
|
||||
FD_SET(uls, &rmask);
|
||||
if (ils >= 0)
|
||||
FD_SET(ils, &rmask);
|
||||
|
||||
if (select(max2(fileno(stdin),max2(uls,ils)) + 1, &rmask,
|
||||
(fd_set *)NULL, (fd_set *)NULL, (struct timeval *)NULL) < 0)
|
||||
{
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to select\n",progname);
|
||||
exit(1);
|
||||
} /* if */
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
if (uls > 0 && FD_ISSET(uls, &rmask))
|
||||
handle_unix_request(uls);
|
||||
#endif
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
if (ils > 0 && FD_ISSET(ils, &rmask))
|
||||
handle_internet_request(ils);
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
if (FD_ISSET(fileno(stdin), &rmask)) /* from stdin (gnu process) */
|
||||
handle_response();
|
||||
#endif /* NOT SYSV_IPC */
|
||||
} /* while */
|
||||
|
||||
return 0;
|
||||
} /* main */
|
||||
|
||||
#endif /* SYSV_IPC || UNIX_DOMAIN_SOCKETS || INTERNET_DOMAIN_SOCKETS */
|
190
src/daemon/gnuserv.h
Normal file
190
src/daemon/gnuserv.h
Normal file
@@ -0,0 +1,190 @@
|
||||
/* -*-C-*-
|
||||
|
||||
Header file for the GNU Emacs server and client C code.
|
||||
|
||||
This file is part of GNU Emacs.
|
||||
|
||||
Copying is permitted under those conditions described by the GNU
|
||||
General Public License.
|
||||
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on
|
||||
'etc/server.c' and 'etc/emacsclient.c' from the 18.52 GNU
|
||||
Emacs distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/* HISTORY
|
||||
* 11-Nov-1990 bristor@simba
|
||||
* Added EOT stuff.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* Please see the note at the end of the README file for details.
|
||||
*
|
||||
* (If gnuserv came bundled with your emacs, the README file is probably
|
||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
static char header_rcsid [] = "!Header: gnuserv.h,v 2.4 95/02/16 11:58:11 arup alpha !";
|
||||
#endif
|
||||
|
||||
#define NO_SHORTNAMES
|
||||
|
||||
#define PATCHLEVEL 2
|
||||
|
||||
#define NO_SHORTNAMES
|
||||
/* gnuserv should not be compiled using SOCKS */
|
||||
#define DO_NOT_SOCKSIFY
|
||||
#include <glibtop/global.h>
|
||||
#undef read
|
||||
#undef write
|
||||
#undef open
|
||||
#undef close
|
||||
#undef signal
|
||||
|
||||
/* Define the communication method between server and clients:
|
||||
* You can have either or both kinds of sockets, but you can't mix
|
||||
* sockets with sysv ipc
|
||||
*/
|
||||
|
||||
|
||||
#define INTERNET_DOMAIN_SOCKETS
|
||||
#define UNIX_DOMAIN_SOCKETS
|
||||
/* #define SYSV_IPC */
|
||||
|
||||
/*
|
||||
* Define additional authentication protocols to be used. These methods will
|
||||
* be tried before falling back to the default gnuserv protocol (based on
|
||||
* the GNU_SECURE environment variable). Currently, only MIT-MAGIC-COOKIE-1
|
||||
* is also supported.
|
||||
*
|
||||
* Comment out the next line(s) if you don't want to enable the
|
||||
* appropriate authentication protocol.
|
||||
*/
|
||||
|
||||
#if defined (HAVE_XAUTH)
|
||||
#define AUTH_MAGIC_COOKIE
|
||||
#endif /* HAVE_XAUTH */
|
||||
|
||||
/*
|
||||
* stuff related to supporting MIT-MAGIC-COOKIE-1
|
||||
*/
|
||||
|
||||
#define MCOOKIE_SCREEN "999" /* screen # to use as the gnuserv cookie */
|
||||
#define MCOOKIE_NAME "MAGIC-1" /* authentication protocol name */
|
||||
#define MCOOKIE_X_NAME "MIT-MAGIC-COOKIE-1" /* as needed by X */
|
||||
|
||||
|
||||
#define DEFAUTH_NAME "GNU-SECURE" /* name of default auth protocol */
|
||||
#define AUTH_TIMEOUT 15 /* # seconds to wait for auth data */
|
||||
#define AUTH_NAMESZ 15 /* max allows auth protocol name size */
|
||||
|
||||
|
||||
/*
|
||||
* Pick a default communication scheme, if none was specified.
|
||||
*/
|
||||
|
||||
#if !defined(SYSV_IPC) && !defined(UNIX_DOMAIN_SOCKETS) && !defined(INTERNET_DOMAIN_SOCKETS)
|
||||
|
||||
#ifdef HAVE_SYSVIPC
|
||||
#define SYSV_IPC /* SYSV systems use SYSV IPC by default */
|
||||
#endif /* HAVE_SYSVIPC */
|
||||
|
||||
#ifdef BSD
|
||||
#define UNIX_DOMAIN_SOCKETS /* BSD systems use Unix Domain sockets by default */
|
||||
#endif /* BSD */
|
||||
|
||||
#endif /* No communication method pre-defined */
|
||||
|
||||
/*
|
||||
* If you are using SYSV_IPC, you might want to make the buffer size bigger
|
||||
* since it limits the size of requests and responses. Don't make it bigger
|
||||
* than your system's max message size though (usually a couple of k) or else
|
||||
* msgsend will start failing. For sockets, using the system BUFSIZ is usually
|
||||
* what you want.
|
||||
*/
|
||||
|
||||
# define GSERV_BUFSZ BUFSIZ
|
||||
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
#include <sys/ipc.h>
|
||||
#include <sys/msg.h>
|
||||
|
||||
#define send_string(s,str) \
|
||||
if (strlen(msgp->mtext) + strlen(str) < GSERV_BUFSZ) \
|
||||
strcat(msgp->mtext,str); \
|
||||
else \
|
||||
{ \
|
||||
fprintf(stderr,"%s: not enough message buffer space\n",progname); \
|
||||
exit(1); \
|
||||
} \
|
||||
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
#include <sys/socket.h>
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
#include <netdb.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#define TABLE_SIZE 101 /* The number of entries in the hash table */
|
||||
#define HASH(host) host /* Rather simplistic hash function */
|
||||
#define DEFAULT_PORT 21490 /* default port number to use is
|
||||
* DEFAULT_PORT + uid */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
#include <sys/un.h>
|
||||
#define HIDE_UNIX_SOCKET /* put the unix socket in a protected dir */
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
#define HOSTNAMSZ 255 /* max size of a hostname */
|
||||
#define REPLYSIZ 300 /* max size of reply from server to client */
|
||||
#undef FALSE
|
||||
#define FALSE 0
|
||||
#undef TRUE
|
||||
#define TRUE 1
|
||||
|
||||
extern char *optarg;
|
||||
extern int optind;
|
||||
extern char *progname;
|
||||
|
||||
/* The casts shut Sun's compiler up and are safe in the context these
|
||||
are actually used. */
|
||||
#define max2(x,y) (((int) (x) > (int) (y)) ? (x) : (y))
|
||||
#define min2(x,y) (((int) (x) < (int) (y)) ? (x) : (y))
|
||||
|
||||
#ifndef _NFILE /* rough guess at maximum number of open files */
|
||||
#define _NFILE 20
|
||||
#endif
|
||||
|
||||
#define EOT_STR "\004"
|
||||
#define EOT_CHR '\004'
|
||||
|
||||
/* connection types */
|
||||
#define CONN_UNIX 0
|
||||
#define CONN_INTERNET 1
|
||||
#define CONN_IPC 2
|
||||
|
||||
/* function declarations */
|
||||
int make_connection (char *hostarg, int portarg, int *s);
|
||||
#ifdef SYSV_IPC
|
||||
void disconnect_from_ipc_server();
|
||||
#endif
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
void send_string (int s, const char *msg);
|
||||
void disconnect_from_server (int s, int echo);
|
||||
int read_line (int s, char *dest);
|
||||
#endif
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
int internet_addr (char *host);
|
||||
#endif
|
454
src/daemon/gnuslib.c
Normal file
454
src/daemon/gnuslib.c
Normal file
@@ -0,0 +1,454 @@
|
||||
/* -*-C-*-
|
||||
Common library code for the GNU Emacs server and client.
|
||||
|
||||
This file is part of GNU Emacs.
|
||||
|
||||
Copying is permitted under those conditions described by the GNU
|
||||
General Public License.
|
||||
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on
|
||||
'etc/server.c' and 'etc/emacsclient.c' from the 18.52 GNU
|
||||
Emacs distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/* HISTORY
|
||||
* 11-Nov-1990 bristor@simba
|
||||
* Added EOT stuff.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* Please see the note at the end of the README file for details.
|
||||
*
|
||||
* (If gnuserv came bundled with your emacs, the README file is probably
|
||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
static char rcsid [] = "!Header: gnuslib.c,v 2.4 95/02/16 11:57:37 arup alpha !";
|
||||
#endif
|
||||
|
||||
#include "gnuserv.h"
|
||||
#include <errno.h>
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
static int connect_to_ipc_server (void);
|
||||
#endif
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
static int connect_to_unix_server (void);
|
||||
#endif
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
static int connect_to_internet_server (char *serverhost, u_short port);
|
||||
#endif
|
||||
|
||||
/* On some systems, e.g. DGUX, inet_addr returns a 'struct in_addr'. */
|
||||
#ifdef HAVE_BROKEN_INET_ADDR
|
||||
# define IN_ADDR struct in_addr
|
||||
# define NUMERIC_ADDR_ERROR (numeric_addr.s_addr == -1)
|
||||
#else
|
||||
# if (LONGBITS > 32)
|
||||
# define IN_ADDR unsigned int
|
||||
# else
|
||||
# define IN_ADDR unsigned long
|
||||
# endif
|
||||
# define NUMERIC_ADDR_ERROR (numeric_addr == (IN_ADDR) -1)
|
||||
#endif
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif /* HAVE_UNISTD_H */
|
||||
#ifdef HAVE_STRING_H
|
||||
#include <string.h>
|
||||
#endif /* HAVE_STRING_H */
|
||||
|
||||
#include <arpa/inet.h>
|
||||
|
||||
char *progname = NULL;
|
||||
|
||||
int make_connection(hostarg, portarg, s)
|
||||
char *hostarg;
|
||||
int portarg;
|
||||
int *s;
|
||||
{
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
char *ptr;
|
||||
if (hostarg == NULL)
|
||||
hostarg = getenv("GNU_HOST");
|
||||
if (portarg == 0 && (ptr=getenv("GNU_PORT")) != NULL)
|
||||
portarg = atoi(ptr);
|
||||
#endif
|
||||
|
||||
if (hostarg != NULL) {
|
||||
/* hostname was given explicitly, via cmd line arg or GNU_HOST,
|
||||
* so obey it. */
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
if (!strcmp(hostarg, "unix")) {
|
||||
*s = connect_to_unix_server();
|
||||
return (int) CONN_UNIX;
|
||||
}
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
*s = connect_to_internet_server(hostarg, portarg);
|
||||
return (int) CONN_INTERNET;
|
||||
#endif
|
||||
#ifdef SYSV_IPC
|
||||
return -1; /* hostarg should always be NULL for SYSV_IPC */
|
||||
#endif
|
||||
} else {
|
||||
/* no hostname given. Use unix-domain/sysv-ipc, or
|
||||
* internet-domain connection to local host if they're not available. */
|
||||
#if defined(UNIX_DOMAIN_SOCKETS)
|
||||
*s = connect_to_unix_server();
|
||||
return (int) CONN_UNIX;
|
||||
#elif defined(SYSV_IPC)
|
||||
*s = connect_to_ipc_server();
|
||||
return (int) CONN_IPC;
|
||||
#elif defined(INTERNET_DOMAIN_SOCKETS)
|
||||
{
|
||||
char localhost[HOSTNAMSZ];
|
||||
gethostname(localhost,HOSTNAMSZ); /* use this host by default */
|
||||
*s = connect_to_internet_server(localhost, portarg);
|
||||
return (int) CONN_INTERNET;
|
||||
}
|
||||
#endif /* IPC type */
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
/*
|
||||
connect_to_ipc_server -- establish connection with server process via SYSV IPC
|
||||
Returns msqid for server if successful.
|
||||
*/
|
||||
static int connect_to_ipc_server (void)
|
||||
{
|
||||
int s; /* connected msqid */
|
||||
key_t key; /* message key */
|
||||
char buf[GSERV_BUFSZ+1]; /* buffer for filename */
|
||||
|
||||
sprintf(buf,"/tmp/gsrv%d",(int)geteuid());
|
||||
creat(buf,0600);
|
||||
if ((key = ftok(buf,1)) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr, "%s: unable to get ipc key from %s\n",
|
||||
progname, buf);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if ((s = msgget(key,0600)) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to access msg queue\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
return(s);
|
||||
|
||||
} /* connect_to_ipc_server */
|
||||
|
||||
|
||||
/*
|
||||
disconnect_from_ipc_server -- inform the server that sending has finished,
|
||||
and wait for its reply.
|
||||
*/
|
||||
void disconnect_from_ipc_server(s,msgp,echo)
|
||||
int s;
|
||||
struct msgbuf *msgp;
|
||||
int echo;
|
||||
{
|
||||
int len; /* length of received message */
|
||||
|
||||
send_string(s,EOT_STR); /* EOT terminates this message */
|
||||
msgp->mtype = 1;
|
||||
|
||||
if(msgsnd(s,msgp,strlen(msgp->mtext)+1,0) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to send message to server\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
if((len = msgrcv(s,msgp,GSERV_BUFSZ,getpid(),0)) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to receive message from server\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
if (echo) {
|
||||
msgp->mtext[len] = '\0'; /* string terminate message */
|
||||
fputs(msgp->mtext, stdout);
|
||||
if (msgp->mtext[len-1] != '\n') putchar ('\n');
|
||||
}; /* if */
|
||||
|
||||
} /* disconnect_from_ipc_server */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
/*
|
||||
send_string -- send string to socket.
|
||||
*/
|
||||
void send_string(s,msg)
|
||||
int s;
|
||||
const char *msg;
|
||||
{
|
||||
#if 0
|
||||
if (send(s,msg,strlen(msg),0) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to send\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
#else
|
||||
int len, left=strlen(msg);
|
||||
while (left > 0) {
|
||||
if ((len=write(s,msg,min2(left,GSERV_BUFSZ))) < 0) {
|
||||
/* XEmacs addition: robertl@arnet.com */
|
||||
if (errno == EPIPE) {
|
||||
return ;
|
||||
}
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to send\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
left -= len;
|
||||
msg += len;
|
||||
}; /* while */
|
||||
#endif
|
||||
} /* send_string */
|
||||
|
||||
/*
|
||||
read_line -- read a \n terminated line from a socket
|
||||
*/
|
||||
int read_line(int s, char *dest)
|
||||
{
|
||||
int length;
|
||||
int offset=0;
|
||||
char buffer[GSERV_BUFSZ+1];
|
||||
|
||||
while ((length=read(s,buffer+offset,1)>0) && buffer[offset]!='\n'
|
||||
&& buffer[offset] != EOT_CHR) {
|
||||
offset += length;
|
||||
if (offset >= GSERV_BUFSZ)
|
||||
break;
|
||||
}
|
||||
buffer[offset] = '\0';
|
||||
strcpy(dest,buffer);
|
||||
return 1;
|
||||
} /* read_line */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
/*
|
||||
connect_to_unix_server -- establish connection with server process via a unix-
|
||||
domain socket. Returns socket descriptor for server
|
||||
if successful.
|
||||
*/
|
||||
static int connect_to_unix_server (void)
|
||||
{
|
||||
int s; /* connected socket descriptor */
|
||||
struct sockaddr_un server; /* for unix connections */
|
||||
|
||||
if ((s = socket(AF_UNIX,SOCK_STREAM,0)) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to create socket\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
server.sun_family = AF_UNIX;
|
||||
#ifdef HIDE_UNIX_SOCKET
|
||||
sprintf(server.sun_path,"/tmp/gsrvdir%d/gsrv",(int)geteuid());
|
||||
#else /* HIDE_UNIX_SOCKET */
|
||||
sprintf(server.sun_path,"/tmp/gsrv%d",(int)geteuid());
|
||||
#endif /* HIDE_UNIX_SOCKET */
|
||||
if (connect(s,(struct sockaddr *)&server,strlen(server.sun_path)+2) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to connect to local\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
return(s);
|
||||
|
||||
} /* connect_to_unix_server */
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
/*
|
||||
internet_addr -- return the internet addr of the hostname or
|
||||
internet address passed. Return -1 on error.
|
||||
*/
|
||||
int internet_addr(host)
|
||||
char *host;
|
||||
{
|
||||
struct hostent *hp; /* pointer to host info for remote host */
|
||||
IN_ADDR numeric_addr; /* host address */
|
||||
|
||||
numeric_addr = inet_addr(host);
|
||||
if (!NUMERIC_ADDR_ERROR)
|
||||
return numeric_addr;
|
||||
else if ((hp = gethostbyname(host)) != NULL)
|
||||
return ((struct in_addr *)(hp->h_addr))->s_addr;
|
||||
else
|
||||
return -1;
|
||||
|
||||
} /* internet_addr */
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
# include <X11/X.h>
|
||||
# include <X11/Xauth.h>
|
||||
|
||||
static Xauth *server_xauth = NULL;
|
||||
#endif
|
||||
|
||||
/*
|
||||
connect_to_internet_server -- establish connection with server process via
|
||||
an internet domain socket. Returns socket
|
||||
descriptor for server if successful.
|
||||
*/
|
||||
static int connect_to_internet_server (char *serverhost, u_short port)
|
||||
{
|
||||
int s; /* connected socket descriptor */
|
||||
struct servent *sp; /* pointer to service information */
|
||||
struct sockaddr_in peeraddr_in; /* for peer socket address */
|
||||
char buf[512]; /* temporary buffer */
|
||||
|
||||
/* clear out address structures */
|
||||
memset((char *)&peeraddr_in,0,sizeof(struct sockaddr_in));
|
||||
|
||||
/* Set up the peer address to which we will connect. */
|
||||
peeraddr_in.sin_family = AF_INET;
|
||||
|
||||
/* look up the server host's internet address */
|
||||
if ((peeraddr_in.sin_addr.s_addr = internet_addr(serverhost)) == -1) {
|
||||
fprintf(stderr,"%s: unable to find %s in /etc/hosts or from YP\n",
|
||||
progname,serverhost);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
if (port == 0) {
|
||||
if ((sp = getservbyname ("gnuserv","tcp")) == NULL)
|
||||
peeraddr_in.sin_port = htons(DEFAULT_PORT+getuid());
|
||||
else
|
||||
peeraddr_in.sin_port = sp->s_port;
|
||||
} /* if */
|
||||
else
|
||||
peeraddr_in.sin_port = htons(port);
|
||||
|
||||
/* Create the socket. */
|
||||
if ((s = socket (AF_INET,SOCK_STREAM, 0))== -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to create socket\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
/* Try to connect to the remote server at the address
|
||||
* which was just built into peeraddr.
|
||||
*/
|
||||
if (connect(s, (struct sockaddr *)&peeraddr_in,
|
||||
sizeof(struct sockaddr_in)) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr, "%s: unable to connect to remote\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
|
||||
/* send credentials using MIT-MAGIC-COOKIE-1 protocol */
|
||||
|
||||
server_xauth =
|
||||
XauGetAuthByAddr(FamilyInternet,
|
||||
sizeof(peeraddr_in.sin_addr.s_addr),
|
||||
(char *) &peeraddr_in.sin_addr.s_addr,
|
||||
strlen(MCOOKIE_SCREEN), MCOOKIE_SCREEN,
|
||||
strlen(MCOOKIE_X_NAME), MCOOKIE_X_NAME);
|
||||
|
||||
if (server_xauth && server_xauth->data) {
|
||||
sprintf(buf, "%s\n%d\n", MCOOKIE_NAME, server_xauth->data_length);
|
||||
write (s, buf, strlen(buf));
|
||||
write (s, server_xauth->data, server_xauth->data_length);
|
||||
|
||||
return (s);
|
||||
}
|
||||
|
||||
#endif /* AUTH_MAGIC_COOKIE */
|
||||
|
||||
sprintf (buf, "%s\n", DEFAUTH_NAME);
|
||||
write (s, buf, strlen(buf));
|
||||
|
||||
return(s);
|
||||
|
||||
} /* connect_to_internet_server */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
/*
|
||||
disconnect_from_server -- inform the server that sending has finished, and wait for
|
||||
its reply.
|
||||
*/
|
||||
void disconnect_from_server(s,echo)
|
||||
int s;
|
||||
int echo;
|
||||
{
|
||||
#if 0
|
||||
char buffer[REPLYSIZ+1];
|
||||
#else
|
||||
char buffer[GSERV_BUFSZ+1];
|
||||
#endif
|
||||
int add_newline = 1;
|
||||
int length;
|
||||
|
||||
send_string(s,EOT_STR); /* make sure server gets string */
|
||||
|
||||
#if !defined (linux) && !defined (_SCO_DS)
|
||||
/*
|
||||
* shutdown is completely hozed under linux. If s is a unix domain socket,
|
||||
* you'll get EOPNOTSUPP back from it. If s is an internet socket, you get
|
||||
* a broken pipe when you try to read a bit later. The latter
|
||||
* problem is fixed for linux versions >= 1.1.46, but the problem
|
||||
* with unix sockets persists. Sigh.
|
||||
*/
|
||||
|
||||
if (shutdown(s,1) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr, "%s: unable to shutdown socket\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
while((length = recv(s,buffer,REPLYSIZ,0)) > 0) {
|
||||
buffer[length] = '\0';
|
||||
if (echo) fputs(buffer,stdout);
|
||||
add_newline = (buffer[length-1] != '\n');
|
||||
}; /* while */
|
||||
#else
|
||||
while ((length = read(s,buffer,GSERV_BUFSZ)) > 0 ||
|
||||
(length == -1 && errno == EINTR)) {
|
||||
if (length) {
|
||||
buffer[length] = '\0';
|
||||
if (echo) {
|
||||
fputs(buffer,stdout);
|
||||
add_newline = (buffer[length-1] != '\n');
|
||||
}; /* if */
|
||||
}; /* if */
|
||||
}; /* while */
|
||||
#endif
|
||||
|
||||
if (echo && add_newline) putchar('\n');
|
||||
|
||||
if(length < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to read the reply from the server\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
} /* disconnect_from_server */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
@@ -37,3 +37,46 @@ glibtop_error_r (glibtop *server, char *format, ...)
|
||||
va_end (ap);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
void
|
||||
glibtop_error_io_r (glibtop *server, char *format, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start (ap, format);
|
||||
|
||||
fprintf (stderr, "%s: ", server->name);
|
||||
vfprintf (stderr, format, ap);
|
||||
fprintf (stderr, ": %s\n", strerror (errno));
|
||||
|
||||
va_end (ap);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
void
|
||||
glibtop_warn_r (glibtop *server, char *format, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start (ap, format);
|
||||
|
||||
fprintf (stderr, "%s: ", server->name);
|
||||
vfprintf (stderr, format, ap);
|
||||
fprintf (stderr, "\n");
|
||||
|
||||
va_end (ap);
|
||||
}
|
||||
|
||||
void
|
||||
glibtop_warn_io_r (glibtop *server, char *format, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start (ap, format);
|
||||
|
||||
fprintf (stderr, "%s: ", server->name);
|
||||
vfprintf (stderr, format, ap);
|
||||
fprintf (stderr, ": %s\n", strerror (errno));
|
||||
|
||||
va_end (ap);
|
||||
}
|
||||
|
456
sysdeps/common/gnuslib.c
Normal file
456
sysdeps/common/gnuslib.c
Normal file
@@ -0,0 +1,456 @@
|
||||
/* -*-C-*-
|
||||
Common library code for the GNU Emacs server and client.
|
||||
|
||||
This file is part of GNU Emacs.
|
||||
|
||||
Copying is permitted under those conditions described by the GNU
|
||||
General Public License.
|
||||
|
||||
Copyright (C) 1989 Free Software Foundation, Inc.
|
||||
|
||||
Author: Andy Norman (ange@hplb.hpl.hp.com), based on
|
||||
'etc/server.c' and 'etc/emacsclient.c' from the 18.52 GNU
|
||||
Emacs distribution.
|
||||
|
||||
Please mail bugs and suggestions to the author at the above address.
|
||||
*/
|
||||
|
||||
/* HISTORY
|
||||
* 11-Nov-1990 bristor@simba
|
||||
* Added EOT stuff.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file incorporates new features added by Bob Weiner <weiner@mot.com>,
|
||||
* Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
|
||||
* Please see the note at the end of the README file for details.
|
||||
*
|
||||
* (If gnuserv came bundled with your emacs, the README file is probably
|
||||
* ../etc/gnuserv.README relative to the directory containing this file)
|
||||
*/
|
||||
|
||||
#if 0
|
||||
static char rcsid [] = "!Header: gnuslib.c,v 2.4 95/02/16 11:57:37 arup alpha !";
|
||||
#endif
|
||||
|
||||
#include "gnuserv.h"
|
||||
#include <errno.h>
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
static int connect_to_ipc_server (void);
|
||||
#endif
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
static int connect_to_unix_server (void);
|
||||
#endif
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
static int connect_to_internet_server (char *serverhost, u_short port);
|
||||
#endif
|
||||
|
||||
/* On some systems, e.g. DGUX, inet_addr returns a 'struct in_addr'. */
|
||||
#ifdef HAVE_BROKEN_INET_ADDR
|
||||
# define IN_ADDR struct in_addr
|
||||
# define NUMERIC_ADDR_ERROR (numeric_addr.s_addr == -1)
|
||||
#else
|
||||
# if (LONGBITS > 32)
|
||||
# define IN_ADDR unsigned int
|
||||
# else
|
||||
# define IN_ADDR unsigned long
|
||||
# endif
|
||||
# define NUMERIC_ADDR_ERROR (numeric_addr == (IN_ADDR) -1)
|
||||
#endif
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif /* HAVE_UNISTD_H */
|
||||
#ifdef HAVE_STRING_H
|
||||
#include <string.h>
|
||||
#endif /* HAVE_STRING_H */
|
||||
|
||||
#include <arpa/inet.h>
|
||||
|
||||
char *progname = NULL;
|
||||
|
||||
int make_connection(hostarg, portarg, s)
|
||||
char *hostarg;
|
||||
int portarg;
|
||||
int *s;
|
||||
{
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
char *ptr;
|
||||
if (hostarg == NULL)
|
||||
hostarg = getenv("GNU_HOST");
|
||||
if (portarg == 0 && (ptr=getenv("GNU_PORT")) != NULL)
|
||||
portarg = atoi(ptr);
|
||||
#endif
|
||||
|
||||
if (hostarg != NULL) {
|
||||
/* hostname was given explicitly, via cmd line arg or GNU_HOST,
|
||||
* so obey it. */
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
if (!strcmp(hostarg, "unix")) {
|
||||
*s = connect_to_unix_server();
|
||||
return (int) CONN_UNIX;
|
||||
}
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
*s = connect_to_internet_server(hostarg, portarg);
|
||||
return (int) CONN_INTERNET;
|
||||
#endif
|
||||
#ifdef SYSV_IPC
|
||||
return -1; /* hostarg should always be NULL for SYSV_IPC */
|
||||
#endif
|
||||
} else {
|
||||
/* no hostname given. Use unix-domain/sysv-ipc, or
|
||||
* internet-domain connection to local host if they're not available. */
|
||||
#if defined(UNIX_DOMAIN_SOCKETS)
|
||||
*s = connect_to_unix_server();
|
||||
return (int) CONN_UNIX;
|
||||
#elif defined(SYSV_IPC)
|
||||
*s = connect_to_ipc_server();
|
||||
return (int) CONN_IPC;
|
||||
#elif defined(INTERNET_DOMAIN_SOCKETS)
|
||||
{
|
||||
char localhost[HOSTNAMSZ];
|
||||
gethostname(localhost,HOSTNAMSZ); /* use this host by default */
|
||||
*s = connect_to_internet_server(localhost, portarg);
|
||||
return (int) CONN_INTERNET;
|
||||
}
|
||||
#endif /* IPC type */
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef SYSV_IPC
|
||||
/*
|
||||
connect_to_ipc_server -- establish connection with server process via SYSV IPC
|
||||
Returns msqid for server if successful.
|
||||
*/
|
||||
static int connect_to_ipc_server (void)
|
||||
{
|
||||
int s; /* connected msqid */
|
||||
key_t key; /* message key */
|
||||
char buf[GSERV_BUFSZ+1]; /* buffer for filename */
|
||||
|
||||
sprintf(buf,"/tmp/gsrv%d",(int)geteuid());
|
||||
creat(buf,0600);
|
||||
if ((key = ftok(buf,1)) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr, "%s: unable to get ipc key from %s\n",
|
||||
progname, buf);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if ((s = msgget(key,0600)) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to access msg queue\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
return(s);
|
||||
|
||||
} /* connect_to_ipc_server */
|
||||
|
||||
|
||||
/*
|
||||
disconnect_from_ipc_server -- inform the server that sending has finished,
|
||||
and wait for its reply.
|
||||
*/
|
||||
void disconnect_from_ipc_server(s,msgp,echo)
|
||||
int s;
|
||||
struct msgbuf *msgp;
|
||||
int echo;
|
||||
{
|
||||
int len; /* length of received message */
|
||||
|
||||
send_string(s,EOT_STR); /* EOT terminates this message */
|
||||
msgp->mtype = 1;
|
||||
|
||||
if(msgsnd(s,msgp,strlen(msgp->mtext)+1,0) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to send message to server\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
if((len = msgrcv(s,msgp,GSERV_BUFSZ,getpid(),0)) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to receive message from server\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
if (echo) {
|
||||
msgp->mtext[len] = '\0'; /* string terminate message */
|
||||
fputs(msgp->mtext, stdout);
|
||||
if (msgp->mtext[len-1] != '\n') putchar ('\n');
|
||||
}; /* if */
|
||||
|
||||
} /* disconnect_from_ipc_server */
|
||||
#endif /* SYSV_IPC */
|
||||
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
/*
|
||||
send_string -- send string to socket.
|
||||
*/
|
||||
void send_string(s,msg)
|
||||
int s;
|
||||
const char *msg;
|
||||
{
|
||||
#if 0
|
||||
if (send(s,msg,strlen(msg),0) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to send\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
#else
|
||||
int len, left=strlen(msg);
|
||||
while (left > 0) {
|
||||
if ((len=write(s,msg,min2(left,GSERV_BUFSZ))) < 0) {
|
||||
/* XEmacs addition: robertl@arnet.com */
|
||||
if (errno == EPIPE) {
|
||||
return ;
|
||||
}
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to send\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
left -= len;
|
||||
msg += len;
|
||||
}; /* while */
|
||||
#endif
|
||||
} /* send_string */
|
||||
|
||||
/*
|
||||
read_line -- read a \n terminated line from a socket
|
||||
*/
|
||||
int read_line(int s, char *dest)
|
||||
{
|
||||
int length;
|
||||
int offset=0;
|
||||
char buffer[GSERV_BUFSZ+1];
|
||||
|
||||
while ((length=read(s,buffer+offset,1)>0) && buffer[offset]!='\n'
|
||||
&& buffer[offset] != EOT_CHR) {
|
||||
offset += length;
|
||||
if (offset >= GSERV_BUFSZ)
|
||||
break;
|
||||
}
|
||||
buffer[offset] = '\0';
|
||||
strcpy(dest,buffer);
|
||||
return 1;
|
||||
} /* read_line */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#ifdef UNIX_DOMAIN_SOCKETS
|
||||
/*
|
||||
connect_to_unix_server -- establish connection with server process via a unix-
|
||||
domain socket. Returns socket descriptor for server
|
||||
if successful.
|
||||
*/
|
||||
static int connect_to_unix_server (void)
|
||||
{
|
||||
int s; /* connected socket descriptor */
|
||||
struct sockaddr_un server; /* for unix connections */
|
||||
|
||||
if ((s = socket(AF_UNIX,SOCK_STREAM,0)) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to create socket\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
server.sun_family = AF_UNIX;
|
||||
#ifdef HIDE_UNIX_SOCKET
|
||||
sprintf(server.sun_path,"/tmp/gsrvdir%d/gsrv",(int)geteuid());
|
||||
#else /* HIDE_UNIX_SOCKET */
|
||||
sprintf(server.sun_path,"/tmp/gsrv%d",(int)geteuid());
|
||||
#endif /* HIDE_UNIX_SOCKET */
|
||||
if (connect(s,(struct sockaddr *)&server,strlen(server.sun_path)+2) < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to connect to local\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
return(s);
|
||||
|
||||
} /* connect_to_unix_server */
|
||||
#endif /* UNIX_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#ifdef INTERNET_DOMAIN_SOCKETS
|
||||
/*
|
||||
internet_addr -- return the internet addr of the hostname or
|
||||
internet address passed. Return -1 on error.
|
||||
*/
|
||||
int internet_addr(host)
|
||||
char *host;
|
||||
{
|
||||
struct hostent *hp; /* pointer to host info for remote host */
|
||||
IN_ADDR numeric_addr; /* host address */
|
||||
|
||||
numeric_addr = inet_addr (host);
|
||||
if (!NUMERIC_ADDR_ERROR)
|
||||
return numeric_addr;
|
||||
else if ((hp = gethostbyname (host)) != NULL)
|
||||
return ((struct in_addr *)(hp->h_addr))->s_addr;
|
||||
else {
|
||||
glibtop_warn_io ("gethostbyname (%s)", host);
|
||||
return -1;
|
||||
}
|
||||
|
||||
} /* internet_addr */
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
# include <X11/X.h>
|
||||
# include <X11/Xauth.h>
|
||||
|
||||
static Xauth *server_xauth = NULL;
|
||||
#endif
|
||||
|
||||
/*
|
||||
connect_to_internet_server -- establish connection with server process via
|
||||
an internet domain socket. Returns socket
|
||||
descriptor for server if successful.
|
||||
*/
|
||||
static int connect_to_internet_server (char *serverhost, u_short port)
|
||||
{
|
||||
int s; /* connected socket descriptor */
|
||||
struct servent *sp; /* pointer to service information */
|
||||
struct sockaddr_in peeraddr_in; /* for peer socket address */
|
||||
char buf[512]; /* temporary buffer */
|
||||
|
||||
/* clear out address structures */
|
||||
memset((char *)&peeraddr_in,0,sizeof(struct sockaddr_in));
|
||||
|
||||
/* Set up the peer address to which we will connect. */
|
||||
peeraddr_in.sin_family = AF_INET;
|
||||
|
||||
/* look up the server host's internet address */
|
||||
if ((peeraddr_in.sin_addr.s_addr = internet_addr(serverhost)) == -1) {
|
||||
fprintf(stderr,"%s: unable to find %s in /etc/hosts or from YP\n",
|
||||
progname,serverhost);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
if (port == 0) {
|
||||
if ((sp = getservbyname ("gnuserv","tcp")) == NULL)
|
||||
peeraddr_in.sin_port = htons(DEFAULT_PORT+getuid());
|
||||
else
|
||||
peeraddr_in.sin_port = sp->s_port;
|
||||
} /* if */
|
||||
else
|
||||
peeraddr_in.sin_port = htons(port);
|
||||
|
||||
/* Create the socket. */
|
||||
if ((s = socket (AF_INET,SOCK_STREAM, 0))== -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to create socket\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
/* Try to connect to the remote server at the address
|
||||
* which was just built into peeraddr.
|
||||
*/
|
||||
if (connect(s, (struct sockaddr *)&peeraddr_in,
|
||||
sizeof(struct sockaddr_in)) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr, "%s: unable to connect to remote\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
#ifdef AUTH_MAGIC_COOKIE
|
||||
|
||||
/* send credentials using MIT-MAGIC-COOKIE-1 protocol */
|
||||
|
||||
server_xauth =
|
||||
XauGetAuthByAddr(FamilyInternet,
|
||||
sizeof(peeraddr_in.sin_addr.s_addr),
|
||||
(char *) &peeraddr_in.sin_addr.s_addr,
|
||||
strlen(MCOOKIE_SCREEN), MCOOKIE_SCREEN,
|
||||
strlen(MCOOKIE_X_NAME), MCOOKIE_X_NAME);
|
||||
|
||||
if (server_xauth && server_xauth->data) {
|
||||
sprintf(buf, "%s\n%d\n", MCOOKIE_NAME, server_xauth->data_length);
|
||||
write (s, buf, strlen(buf));
|
||||
write (s, server_xauth->data, server_xauth->data_length);
|
||||
|
||||
return (s);
|
||||
}
|
||||
|
||||
#endif /* AUTH_MAGIC_COOKIE */
|
||||
|
||||
sprintf (buf, "%s\n", DEFAUTH_NAME);
|
||||
write (s, buf, strlen(buf));
|
||||
|
||||
return(s);
|
||||
|
||||
} /* connect_to_internet_server */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS */
|
||||
|
||||
|
||||
#if defined(INTERNET_DOMAIN_SOCKETS) || defined(UNIX_DOMAIN_SOCKETS)
|
||||
/*
|
||||
disconnect_from_server -- inform the server that sending has finished, and wait for
|
||||
its reply.
|
||||
*/
|
||||
void disconnect_from_server(s,echo)
|
||||
int s;
|
||||
int echo;
|
||||
{
|
||||
#if 0
|
||||
char buffer[REPLYSIZ+1];
|
||||
#else
|
||||
char buffer[GSERV_BUFSZ+1];
|
||||
#endif
|
||||
int add_newline = 1;
|
||||
int length;
|
||||
|
||||
send_string(s,EOT_STR); /* make sure server gets string */
|
||||
|
||||
#if !defined (linux) && !defined (_SCO_DS)
|
||||
/*
|
||||
* shutdown is completely hozed under linux. If s is a unix domain socket,
|
||||
* you'll get EOPNOTSUPP back from it. If s is an internet socket, you get
|
||||
* a broken pipe when you try to read a bit later. The latter
|
||||
* problem is fixed for linux versions >= 1.1.46, but the problem
|
||||
* with unix sockets persists. Sigh.
|
||||
*/
|
||||
|
||||
if (shutdown(s,1) == -1) {
|
||||
perror(progname);
|
||||
fprintf(stderr, "%s: unable to shutdown socket\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
while((length = recv(s,buffer,REPLYSIZ,0)) > 0) {
|
||||
buffer[length] = '\0';
|
||||
if (echo) fputs(buffer,stdout);
|
||||
add_newline = (buffer[length-1] != '\n');
|
||||
}; /* while */
|
||||
#else
|
||||
while ((length = read(s,buffer,GSERV_BUFSZ)) > 0 ||
|
||||
(length == -1 && errno == EINTR)) {
|
||||
if (length) {
|
||||
buffer[length] = '\0';
|
||||
if (echo) {
|
||||
fputs(buffer,stdout);
|
||||
add_newline = (buffer[length-1] != '\n');
|
||||
}; /* if */
|
||||
}; /* if */
|
||||
}; /* while */
|
||||
#endif
|
||||
|
||||
if (echo && add_newline) putchar('\n');
|
||||
|
||||
if(length < 0) {
|
||||
perror(progname);
|
||||
fprintf(stderr,"%s: unable to read the reply from the server\n",progname);
|
||||
exit(1);
|
||||
}; /* if */
|
||||
|
||||
} /* disconnect_from_server */
|
||||
#endif /* INTERNET_DOMAIN_SOCKETS || UNIX_DOMAIN_SOCKETS */
|
Reference in New Issue
Block a user