view lib-src/gnuserv.h @ 814:a634e3b7acc8

[xemacs-hg @ 2002-04-14 12:41:59 by ben] latest changes TODO.ben-mule-21-5: Update. make-docfile.c: Add basic support for handling ISO 2022 doc strings -- we parse the basic charset designation sequences so we know whether we're in ASCII and have to pay attention to end quotes and such. Reformat code according to coding standards. abbrev.el: Add `global-abbrev-mode', which turns on or off abbrev-mode in all buffers. Added `defining-abbrev-turns-on-abbrev-mode' -- if non-nil, defining an abbrev through an interactive function will automatically turn on abbrev-mode, either globally or locally depending on the command. This is the "what you'd expect" behavior. indent.el: general function for indenting a balanced expression in a mode-correct way. Works similar to indent-region in that a mode can specify a specific command to do the whole operation; if not, figure out the region using forward-sexp and indent each line using indent-according-to-mode. keydefs.el: Removed. Modify M-C-backslash to do indent-region-or-balanced-expression. Make S-Tab just insert a TAB char, like it's meant to do. make-docfile.el: Now that we're using the call-process-in-lisp, we need to load an extra file win32-native.el because we're running a bare temacs. menubar-items.el: Totally redo the Cmds menu so that most used commands appear directly on the menu and less used commands appear in submenus. The old way may have been very pretty, but rather impractical. process.el: Under Windows, don't ever use old-call-process-internal, even in batch mode. We can do processes in batch mode. subr.el: Someone recoded truncate-string-to-width, saying "the FSF version is too complicated and does lots of hard-to-understand stuff" but the resulting recoded version was *totally* wrong! it misunderstood the basic point of this function, which is work in *columns* not chars. i dumped ours and copied the version from FSF 21.1. Also added truncate-string-with-continuation-dots, since this idiom is used often. config.inc.samp, xemacs.mak: Separate out debug and optimize flags. Remove all vestiges of USE_MINIMAL_TAGBITS, USE_INDEXED_LRECORD_IMPLEMENTATION, and GUNG_HO, since those ifdefs have long been removed. Make error-checking support actually work. Some rearrangement of config.inc.samp to make it more logical. Remove callproc.c and ntproc.c from xemacs.mak, no longer used. Make pdump the default. lisp.h: Add support for strong type-checking of Bytecount, Bytebpos, Charcount, Charbpos, and others, by making them classes, overloading the operators to provide integer-like operation and carefully controlling what operations are allowed. Not currently enabled in C++ builds because there are still a number of compile errors, and it won't really work till we merge in my "8-bit-Mule" workspace, in which I make use of the new types Charxpos, Bytexpos, Memxpos, representing a "position" either in a buffer or a string. (This is especially important in the extent code.) abbrev.c, alloc.c, eval.c, buffer.c, buffer.h, editfns.c, fns.c, text.h: Warning fixes, some of them related to new C++ strict type checking of Bytecount, Charbpos, etc. dired.c: Caught an actual error due to strong type checking -- char len being passed when should be byte len. alloc.c, backtrace.h, bytecode.c, bytecode.h, eval.c, sysdep.c: Further optimize Ffuncall: -- process arg list at compiled-function creation time, converting into an array for extra-quick access at funcall time. -- rewrite funcall_compiled_function to use it, and inline this function. -- change the order of check for magic stuff in SPECBIND_FAST_UNSAFE to be faster. -- move the check for need to garbage collect into the allocation code, so only a single flag needs to be checked in funcall. buffer.c, symbols.c: add debug funs to check on mule optimization info in buffers and strings. eval.c, emacs.c, text.c, regex.c, scrollbar-msw.c, search.c: Fix evil crashes due to eistrings not properly reinitialized under pdump. Redo a bit some of the init routines; convert some complex_vars_of() into simple vars_of(), because they didn't need complex processing. callproc.c, emacs.c, event-stream.c, nt.c, process.c, process.h, sysdep.c, sysdep.h, syssignal.h, syswindows.h, ntproc.c: Delete. Hallelujah, praise the Lord, there is no god but Allah!!! fix so that processes can be invoked in bare temacs -- thereby eliminating any need for callproc.c. (currently only eliminated under NT.) remove all crufty and unnecessary old process code in ntproc.c and elsewhere. move non-callproc-specific stuff (mostly environment) into process.c, so callproc.c can be left out under NT. console-tty.c, doc.c, file-coding.c, file-coding.h, lstream.c, lstream.h: fix doc string handling so it works with Japanese, etc docs. change handling of "character mode" so callers don't have to manually set it (quite error-prone). event-msw.c: spacing fixes. lread.c: eliminate unused crufty vintage-19 "FSF defun hack" code. lrecord.h: improve pdump description docs. buffer.c, ntheap.c, unexnt.c, win32.c, emacs.c: Mule-ize some unexec and startup code. It was pseudo-Mule-ized before by simply always calling the ...A versions of functions, but that won't cut it -- eventually we want to be able to run properly even if XEmacs has been installed in a Japanese directory. (The current problem is the timing of the loading of the Unicode tables; this will eventually be fixed.) Go through and fix various other places where the code was not Mule-clean. Provide a function mswindows_get_module_file_name() to get our own name without resort to PATH_MAX and such. Add a big comment in main() about the problem with Unicode table load timing that I just alluded to. emacs.c: When error-checking is enabled (interpreted as "user is developing XEmacs"), don't ask user to "pause to read messages" when a fatal error has occurred, because it will wedge if we are in an inner modal loop (typically when a menu is popped up) and make us unable to get a useful stack trace in the debugger. text.c: Correct update_entirely_ascii_p_flag to actually work. lisp.h, symsinit.h: declarations for above changes.
author ben
date Sun, 14 Apr 2002 12:43:31 +0000
parents 943eaba38521
children cb345077c98c
line wrap: on
line source

/* -*-C-*-

 Header file for the XEmacs server and client C code.

 This file is part of XEmacs.

 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)
 */

#define GNUSERV_VERSION "3.12"

/* Note: this setting can cause client-server connection failure if the
 * value of TMPDIR is not shared by client and server at run-time.
 */
#define USE_TMPDIR

#define PATCHLEVEL 2

#define NO_SHORTNAMES
/* gnuserv should not be compiled using SOCKS */
#define DO_NOT_SOCKSIFY
#include <config.h>
#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
#ifdef HAVE_SYS_UN_H
#define UNIX_DOMAIN_SOCKETS 
/* #define SYSV_IPC  */
#endif

/*
 * 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 */

#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <errno.h>

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif

/*
 * 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 */

/* On some platforms, we need to do the equivalent of "stty litout" to get
 * characters like ^D to pass through to emacs.  This problem has only
 * been observed under emacs18; fsf19 and lemacs are probably okay without it.
 */
#ifndef DONT_USE_LITOUT
#if !defined(HAVE_TERMIO) && !defined(HAVE_TERMIOS) && !defined(VMS)
#if !defined(BSD4_1)
#define USE_LITOUT
#endif
#endif
#endif


#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;
extern char *tmpdir;

/* 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