Commit | Line | Data |
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d953f306 | 1 | /* Communication subprocess for GNU Emacs acting as server. |
4ee9629e | 2 | Copyright (C) 1986, 1987, 1992, 1994, 1999 Free Software Foundation, Inc. |
d953f306 RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
d4327fec | 8 | the Free Software Foundation; either version 2, or (at your option) |
d953f306 RS |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
d953f306 RS |
20 | |
21 | ||
22 | /* The GNU Emacs edit server process is run as a subprocess of Emacs | |
23 | under control of the file lisp/server.el. | |
24 | This program accepts communication from client (program emacsclient.c) | |
25 | and passes their commands (consisting of keyboard characters) | |
26 | up to the Emacs which then executes them. */ | |
27 | ||
28 | #define NO_SHORTNAMES | |
18160b98 | 29 | #include <../src/config.h> |
4ee9629e | 30 | #include <signal.h> |
5ed8e09c | 31 | #undef signal |
d953f306 | 32 | |
021eac48 | 33 | #if !defined (HAVE_SOCKETS) && !defined (HAVE_SYSVIPC) |
d953f306 RS |
34 | #include <stdio.h> |
35 | ||
4e7ef1d6 | 36 | int |
d953f306 RS |
37 | main () |
38 | { | |
39 | fprintf (stderr, "Sorry, the Emacs server is supported only on systems\n"); | |
40 | fprintf (stderr, "with Berkeley sockets or System V IPC.\n"); | |
41 | exit (1); | |
42 | } | |
43 | ||
44 | #else /* HAVE_SOCKETS or HAVE_SYSVIPC */ | |
45 | ||
4e7ef1d6 AS |
46 | void perror_1 (); |
47 | void fatal_error (); | |
48 | ||
1e523e3d | 49 | #if defined (HAVE_SOCKETS) && ! defined (NO_SOCKETS_IN_FILE_SYSTEM) |
d953f306 RS |
50 | /* BSD code is very different from SYSV IPC code */ |
51 | ||
d953f306 | 52 | #include <sys/types.h> |
908d6b87 | 53 | #include <sys/file.h> |
d953f306 | 54 | #include <sys/socket.h> |
d953f306 RS |
55 | #include <sys/un.h> |
56 | #include <stdio.h> | |
57 | #include <errno.h> | |
cbf5f47c | 58 | #include <sys/stat.h> |
d953f306 | 59 | |
4e7ef1d6 AS |
60 | #ifdef HAVE_UNISTD_H |
61 | #include <unistd.h> | |
62 | #endif | |
63 | ||
1ee65e5c | 64 | #ifndef errno |
d953f306 | 65 | extern int errno; |
1ee65e5c | 66 | #endif |
d953f306 | 67 | |
b38bab94 KH |
68 | /* Copied from src/process.c */ |
69 | #ifdef FD_SET | |
70 | /* We could get this from param.h, but better not to depend on finding that. | |
71 | And better not to risk that it might define other symbols used in this | |
72 | file. */ | |
73 | #ifdef FD_SETSIZE | |
74 | #define MAXDESC FD_SETSIZE | |
75 | #else | |
76 | #define MAXDESC 64 | |
77 | #endif | |
78 | #define SELECT_TYPE fd_set | |
79 | #else /* no FD_SET */ | |
80 | #define MAXDESC 32 | |
81 | #define SELECT_TYPE int | |
82 | ||
83 | /* Define the macros to access a single-int bitmap of descriptors. */ | |
84 | #define FD_SET(n, p) (*(p) |= (1 << (n))) | |
85 | #define FD_CLR(n, p) (*(p) &= ~(1 << (n))) | |
86 | #define FD_ISSET(n, p) (*(p) & (1 << (n))) | |
87 | #define FD_ZERO(p) (*(p) = 0) | |
88 | #endif /* no FD_SET */ | |
89 | ||
d8888efa RS |
90 | /* This is the file name of the socket that we made. */ |
91 | ||
92 | char *socket_name; | |
93 | ||
94 | /* Name of this program. */ | |
95 | ||
96 | char *progname; | |
97 | \f | |
98 | /* Handle fatal signals. */ | |
99 | ||
100 | /* This is the handler. */ | |
101 | ||
102 | SIGTYPE | |
103 | delete_socket (sig) | |
104 | int sig; | |
105 | { | |
106 | signal (sig, SIG_DFL); | |
107 | unlink (socket_name); | |
108 | kill (getpid (), sig); | |
109 | } | |
110 | ||
111 | /* Set up to handle all the signals. */ | |
112 | ||
4e7ef1d6 | 113 | void |
d8888efa RS |
114 | handle_signals () |
115 | { | |
116 | signal (SIGHUP, delete_socket); | |
117 | signal (SIGINT, delete_socket); | |
118 | signal (SIGQUIT, delete_socket); | |
119 | signal (SIGILL, delete_socket); | |
120 | signal (SIGTRAP, delete_socket); | |
121 | #ifdef SIGABRT | |
122 | signal (SIGABRT, delete_socket); | |
123 | #endif | |
124 | #ifdef SIGHWE | |
125 | signal (SIGHWE, delete_socket); | |
126 | #endif | |
127 | #ifdef SIGPRE | |
128 | signal (SIGPRE, delete_socket); | |
129 | #endif | |
130 | #ifdef SIGORE | |
131 | signal (SIGORE, delete_socket); | |
132 | #endif | |
133 | #ifdef SIGUME | |
134 | signal (SIGUME, delete_socket); | |
135 | #endif | |
136 | #ifdef SIGDLK | |
137 | signal (SIGDLK, delete_socket); | |
138 | #endif | |
139 | #ifdef SIGCPULIM | |
140 | signal (SIGCPULIM, delete_socket); | |
141 | #endif | |
142 | #ifdef SIGIOT | |
143 | /* This is missing on some systems - OS/2, for example. */ | |
144 | signal (SIGIOT, delete_socket); | |
145 | #endif | |
146 | #ifdef SIGEMT | |
147 | signal (SIGEMT, delete_socket); | |
148 | #endif | |
149 | signal (SIGFPE, delete_socket); | |
150 | #ifdef SIGBUS | |
151 | signal (SIGBUS, delete_socket); | |
152 | #endif | |
153 | signal (SIGSEGV, delete_socket); | |
154 | #ifdef SIGSYS | |
155 | signal (SIGSYS, delete_socket); | |
156 | #endif | |
157 | signal (SIGTERM, delete_socket); | |
158 | #ifdef SIGXCPU | |
159 | signal (SIGXCPU, delete_socket); | |
160 | #endif | |
161 | #ifdef SIGXFSZ | |
162 | signal (SIGXFSZ, delete_socket); | |
163 | #endif /* SIGXFSZ */ | |
164 | ||
165 | #ifdef AIX | |
166 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ | |
167 | signal (SIGXCPU, delete_socket); | |
168 | #ifndef _I386 | |
169 | signal (SIGIOINT, delete_socket); | |
170 | #endif | |
171 | signal (SIGGRANT, delete_socket); | |
172 | signal (SIGRETRACT, delete_socket); | |
173 | signal (SIGSOUND, delete_socket); | |
174 | signal (SIGMSG, delete_socket); | |
175 | #endif /* AIX */ | |
176 | } | |
177 | \f | |
178 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
179 | void | |
180 | error (s1, s2) | |
181 | char *s1, *s2; | |
182 | { | |
183 | fprintf (stderr, "%s: ", progname); | |
184 | fprintf (stderr, s1, s2); | |
185 | fprintf (stderr, "\n"); | |
186 | } | |
187 | ||
188 | /* Print error message and exit. */ | |
189 | void | |
190 | fatal (s1, s2) | |
191 | char *s1, *s2; | |
192 | { | |
193 | error (s1, s2); | |
194 | exit (1); | |
195 | } | |
196 | ||
197 | /* Like malloc but get fatal error if memory is exhausted. */ | |
198 | ||
199 | long * | |
200 | xmalloc (size) | |
201 | unsigned int size; | |
202 | { | |
203 | long *result = (long *) malloc (size); | |
204 | if (result == NULL) | |
205 | fatal ("virtual memory exhausted", 0); | |
206 | return result; | |
207 | } | |
208 | \f | |
c275f129 | 209 | int |
d8888efa RS |
210 | main (argc, argv) |
211 | int argc; | |
212 | char **argv; | |
d953f306 | 213 | { |
40beb971 RS |
214 | char *system_name; |
215 | int system_name_length; | |
4893a437 | 216 | int s, infd; |
57b1f720 RS |
217 | #ifdef SOCKLEN_TYPE |
218 | SOCKLEN_TYPE fromlen; | |
219 | #else | |
4893a437 | 220 | size_t fromlen; |
57b1f720 | 221 | #endif |
4893a437 | 222 | struct sockaddr_un server, fromunix; |
317ad01e | 223 | #ifdef SERVER_HOME_DIR |
d953f306 | 224 | char *homedir; |
317ad01e | 225 | #endif |
d953f306 RS |
226 | char *str, string[BUFSIZ], code[BUFSIZ]; |
227 | FILE *infile; | |
228 | FILE **openfiles; | |
229 | int openfiles_size; | |
cbf5f47c | 230 | struct stat statbuf; |
d953f306 | 231 | |
f662f9b0 | 232 | #ifndef convex |
d953f306 | 233 | char *getenv (); |
f662f9b0 | 234 | #endif |
d953f306 | 235 | |
d8888efa RS |
236 | progname = argv[0]; |
237 | ||
d953f306 RS |
238 | openfiles_size = 20; |
239 | openfiles = (FILE **) malloc (openfiles_size * sizeof (FILE *)); | |
240 | if (openfiles == 0) | |
241 | abort (); | |
242 | ||
243 | /* | |
244 | * Open up an AF_UNIX socket in this person's home directory | |
245 | */ | |
246 | ||
247 | if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) | |
248 | { | |
ccd318fb | 249 | perror_1 ("socket"); |
d953f306 RS |
250 | exit (1); |
251 | } | |
252 | server.sun_family = AF_UNIX; | |
40beb971 | 253 | |
c5fee545 | 254 | system_name_length = 32; |
40beb971 RS |
255 | while (1) |
256 | { | |
257 | system_name = (char *) xmalloc (system_name_length + 1); | |
258 | ||
259 | /* system_name must be null-terminated string. */ | |
260 | system_name[system_name_length] = '\0'; | |
261 | ||
262 | if (gethostname (system_name, system_name_length) == 0) | |
263 | break; | |
264 | ||
265 | free (system_name); | |
266 | system_name_length *= 2; | |
267 | } | |
268 | ||
c5fee545 | 269 | #ifndef SERVER_HOME_DIR |
1464f5d5 JB |
270 | sprintf (server.sun_path, "/tmp/esrv%d-%s", geteuid (), system_name); |
271 | ||
272 | if (unlink (server.sun_path) == -1 && errno != ENOENT) | |
273 | { | |
ccd318fb | 274 | perror_1 ("unlink"); |
1464f5d5 JB |
275 | exit (1); |
276 | } | |
277 | #else | |
278 | if ((homedir = getenv ("HOME")) == NULL) | |
ccd318fb RS |
279 | fatal_error ("No home directory\n"); |
280 | ||
d953f306 | 281 | strcpy (server.sun_path, homedir); |
021eac48 | 282 | strcat (server.sun_path, "/.emacs-server-"); |
021eac48 | 283 | strcat (server.sun_path, system_name); |
d953f306 RS |
284 | /* Delete anyone else's old server. */ |
285 | unlink (server.sun_path); | |
1464f5d5 JB |
286 | #endif |
287 | ||
d8888efa RS |
288 | /* Save the socket name so we can delete it. */ |
289 | socket_name = (char *) xmalloc (strlen (server.sun_path) + 1); | |
290 | strcpy (socket_name, server.sun_path); | |
291 | ||
292 | handle_signals (); | |
293 | ||
2fdfe079 | 294 | if (bind (s, (struct sockaddr *) &server, strlen (server.sun_path) + 2) < 0) |
d953f306 | 295 | { |
ccd318fb | 296 | perror_1 ("bind"); |
d953f306 RS |
297 | exit (1); |
298 | } | |
299 | /* Only this user can send commands to this Emacs. */ | |
cbf5f47c KH |
300 | if (stat (server.sun_path, &statbuf) < 0) |
301 | { | |
302 | perror_1 ("bind"); | |
303 | exit (1); | |
304 | } | |
305 | ||
306 | chmod (server.sun_path, statbuf.st_mode & 0600); | |
d953f306 RS |
307 | /* |
308 | * Now, just wait for everything to come in.. | |
309 | */ | |
310 | if (listen (s, 5) < 0) | |
311 | { | |
ccd318fb | 312 | perror_1 ("listen"); |
d953f306 RS |
313 | exit (1); |
314 | } | |
315 | ||
316 | /* Disable sigpipes in case luser kills client... */ | |
317 | signal (SIGPIPE, SIG_IGN); | |
318 | for (;;) | |
319 | { | |
b38bab94 | 320 | SELECT_TYPE rmask; |
86af296b RM |
321 | FD_ZERO (&rmask); |
322 | FD_SET (0, &rmask); | |
323 | FD_SET (s, &rmask); | |
b38bab94 | 324 | if (select (s + 1, &rmask, 0, 0, 0) < 0) |
ccd318fb | 325 | perror_1 ("select"); |
86af296b | 326 | if (FD_ISSET (s, &rmask)) /* client sends list of filenames */ |
d953f306 RS |
327 | { |
328 | fromlen = sizeof (fromunix); | |
329 | fromunix.sun_family = AF_UNIX; | |
b38bab94 | 330 | infd = accept (s, (struct sockaddr *) &fromunix, &fromlen); |
d953f306 RS |
331 | if (infd < 0) |
332 | { | |
333 | if (errno == EMFILE || errno == ENFILE) | |
ccd318fb | 334 | fprintf (stderr, "Error: too many clients.\n"); |
d953f306 | 335 | else |
ccd318fb | 336 | perror_1 ("accept"); |
d953f306 RS |
337 | continue; |
338 | } | |
339 | ||
340 | if (infd >= openfiles_size) | |
341 | { | |
342 | openfiles_size *= 2; | |
343 | openfiles = (FILE **) realloc (openfiles, | |
344 | openfiles_size * sizeof (FILE *)); | |
345 | if (openfiles == 0) | |
346 | abort (); | |
347 | } | |
348 | ||
349 | infile = fdopen (infd, "r+"); /* open stream */ | |
350 | if (infile == NULL) | |
351 | { | |
ccd318fb | 352 | fprintf (stderr, "Error: too many clients.\n"); |
d953f306 RS |
353 | write (infd, "Too many clients.\n", 18); |
354 | close (infd); /* Prevent descriptor leak.. */ | |
355 | continue; | |
356 | } | |
357 | str = fgets (string, BUFSIZ, infile); | |
358 | if (str == NULL) | |
359 | { | |
ccd318fb | 360 | perror_1 ("fgets"); |
d953f306 RS |
361 | close (infd); /* Prevent descriptor leak.. */ |
362 | continue; | |
363 | } | |
364 | openfiles[infd] = infile; | |
365 | printf ("Client: %d %s", infd, string); | |
366 | /* If what we read did not end in a newline, | |
367 | it means there is more. Keep reading from the socket | |
368 | and outputting to Emacs, until we get the newline. */ | |
369 | while (string[strlen (string) - 1] != '\n') | |
370 | { | |
371 | if (fgets (string, BUFSIZ, infile) == 0) | |
372 | break; | |
373 | printf ("%s", string); | |
374 | } | |
375 | fflush (stdout); | |
376 | fflush (infile); | |
377 | continue; | |
378 | } | |
86af296b | 379 | else if (FD_ISSET (0, &rmask)) /* emacs sends codeword, fd, and string message */ |
d953f306 RS |
380 | { |
381 | /* Read command codeword and fd */ | |
382 | clearerr (stdin); | |
383 | scanf ("%s %d%*c", code, &infd); | |
384 | if (ferror (stdin) || feof (stdin)) | |
ccd318fb | 385 | fatal_error ("server: error reading from standard input\n"); |
d953f306 RS |
386 | |
387 | /* Transfer text from Emacs to the client, up to a newline. */ | |
388 | infile = openfiles[infd]; | |
cbd1aee2 | 389 | rewind (infile); |
d953f306 RS |
390 | while (1) |
391 | { | |
392 | if (fgets (string, BUFSIZ, stdin) == 0) | |
393 | break; | |
394 | fprintf (infile, "%s", string); | |
395 | if (string[strlen (string) - 1] == '\n') | |
396 | break; | |
397 | } | |
398 | fflush (infile); | |
399 | ||
400 | /* If command is close, close connection to client. */ | |
401 | if (strncmp (code, "Close:", 6) == 0) | |
402 | if (infd > 2) | |
403 | { | |
404 | fclose (infile); | |
405 | close (infd); | |
406 | } | |
407 | continue; | |
408 | } | |
409 | } | |
410 | } | |
411 | ||
412 | #else /* This is the SYSV IPC section */ | |
413 | ||
414 | #include <sys/types.h> | |
d953f306 RS |
415 | #include <sys/ipc.h> |
416 | #include <sys/msg.h> | |
417 | #include <setjmp.h> | |
b8a0f2d8 | 418 | #include <errno.h> |
021eac48 RS |
419 | #include <sys/utsname.h> |
420 | ||
421 | struct utsname system_name; | |
b8a0f2d8 RS |
422 | |
423 | #ifndef errno | |
424 | extern int errno; | |
425 | #endif | |
d953f306 RS |
426 | |
427 | jmp_buf msgenv; | |
428 | ||
d4327fec | 429 | SIGTYPE |
d953f306 RS |
430 | msgcatch () |
431 | { | |
432 | longjmp (msgenv, 1); | |
433 | } | |
434 | ||
435 | ||
436 | /* "THIS has to be fixed. Remember, stderr may not exist...-rlk." | |
437 | Incorrect. This program runs as an inferior of Emacs. | |
438 | Its stderr always exists--rms. */ | |
439 | #include <stdio.h> | |
440 | ||
4e7ef1d6 | 441 | int |
d953f306 RS |
442 | main () |
443 | { | |
2f317998 | 444 | int s, infd, fromlen, ioproc; |
d953f306 RS |
445 | key_t key; |
446 | struct msgbuf * msgp = | |
447 | (struct msgbuf *) malloc (sizeof *msgp + BUFSIZ); | |
448 | struct msqid_ds msg_st; | |
449 | int p; | |
450 | char *homedir, *getenv (); | |
451 | char string[BUFSIZ]; | |
452 | FILE *infile; | |
453 | ||
454 | /* | |
021eac48 | 455 | * Create a message queue using ~/.emacs-server as the path for ftok |
d953f306 RS |
456 | */ |
457 | if ((homedir = getenv ("HOME")) == NULL) | |
ccd318fb RS |
458 | fatal_error ("No home directory\n"); |
459 | ||
d953f306 | 460 | strcpy (string, homedir); |
021eac48 RS |
461 | #ifndef HAVE_LONG_FILE_NAMES |
462 | /* If file names are short, we can't fit the host name. */ | |
463 | strcat (string, "/.emacs-server"); | |
464 | #else | |
465 | strcat (string, "/.emacs-server-"); | |
466 | uname (&system_name); | |
467 | strcat (string, system_name.nodename); | |
468 | #endif | |
d953f306 RS |
469 | creat (string, 0600); |
470 | key = ftok (string, 1); /* unlikely to be anyone else using it */ | |
471 | s = msgget (key, 0600 | IPC_CREAT); | |
472 | if (s == -1) | |
473 | { | |
ccd318fb | 474 | perror_1 ("msgget"); |
d953f306 RS |
475 | exit (1); |
476 | } | |
477 | ||
478 | /* Fork so we can close connection even if parent dies */ | |
479 | p = fork (); | |
480 | if (setjmp (msgenv)) | |
481 | { | |
482 | msgctl (s, IPC_RMID, 0); | |
b8a0f2d8 RS |
483 | if (p > 0) |
484 | kill (p, SIGKILL); | |
d953f306 RS |
485 | exit (0); |
486 | } | |
487 | signal (SIGTERM, msgcatch); | |
488 | signal (SIGINT, msgcatch); | |
b8a0f2d8 | 489 | signal (SIGHUP, msgcatch); |
9e3891de | 490 | if (p > 0) |
d953f306 | 491 | { |
9e3891de RS |
492 | /* This is executed in the original process that did the fork above. */ |
493 | /* Get pid of Emacs itself. */ | |
d953f306 RS |
494 | p = getppid (); |
495 | setpgrp (); /* Gnu kills process group on exit */ | |
496 | while (1) | |
497 | { | |
9e3891de | 498 | /* Is Emacs still alive? */ |
d953f306 RS |
499 | if (kill (p, 0) < 0) |
500 | { | |
501 | msgctl (s, IPC_RMID, 0); | |
502 | exit (0); | |
503 | } | |
504 | sleep (10); | |
505 | } | |
506 | } | |
507 | ||
2f317998 RS |
508 | /* This is executed in the child made by forking above. |
509 | Call it c1. Make another process, ioproc. */ | |
510 | ||
511 | ioproc = fork (); | |
512 | if (ioproc == 0) | |
513 | { | |
514 | /* In process ioproc, wait for text from Emacs, | |
515 | and send it to the process c1. | |
516 | This way, c1 only has to wait for one source of input. */ | |
517 | while (fgets (msgp->mtext, BUFSIZ, stdin)) | |
518 | { | |
519 | msgp->mtype = 1; | |
520 | msgsnd (s, msgp, strlen (msgp->mtext) + 1, 0); | |
521 | } | |
522 | exit (1); | |
523 | } | |
524 | ||
525 | /* In the process c1, | |
526 | listen for messages from clients and pass them to Emacs. */ | |
d953f306 RS |
527 | while (1) |
528 | { | |
529 | if ((fromlen = msgrcv (s, msgp, BUFSIZ - 1, 1, 0)) < 0) | |
530 | { | |
b8a0f2d8 RS |
531 | #ifdef EINTR |
532 | if (errno == EINTR) | |
533 | continue; | |
534 | #endif | |
ccd318fb | 535 | perror_1 ("msgrcv"); |
1464f5d5 | 536 | exit (1); |
d953f306 RS |
537 | } |
538 | else | |
539 | { | |
540 | msgctl (s, IPC_STAT, &msg_st); | |
2f317998 RS |
541 | |
542 | /* Distinguish whether the message came from a client, or from | |
543 | ioproc. */ | |
544 | if (msg_st.msg_lspid == ioproc) | |
545 | { | |
546 | char code[BUFSIZ]; | |
547 | int inproc; | |
548 | ||
549 | /* Message from ioproc: tell a client we are done. */ | |
550 | msgp->mtext[strlen (msgp->mtext)-1] = 0; | |
551 | sscanf (msgp->mtext, "%s %d", code, &inproc); | |
552 | msgp->mtype = inproc; | |
553 | msgsnd (s, msgp, strlen (msgp->mtext) + 1, 0); | |
554 | continue; | |
555 | } | |
556 | ||
557 | /* This is a request from a client: copy to stdout | |
558 | so that Emacs will get it. Include msg_lspid | |
559 | so server.el can tell us where to send the reply. */ | |
d953f306 RS |
560 | strncpy (string, msgp->mtext, fromlen); |
561 | string[fromlen] = 0; /* make sure */ | |
562 | /* Newline is part of string.. */ | |
2f317998 | 563 | printf ("Client: %d %s", msg_st.msg_lspid, string); |
d953f306 | 564 | fflush (stdout); |
d953f306 RS |
565 | } |
566 | } | |
567 | } | |
568 | ||
569 | #endif /* HAVE_SYSVIPC */ | |
570 | ||
ccd318fb RS |
571 | \f |
572 | /* This is like perror but puts `Error: ' at the beginning. */ | |
573 | ||
4e7ef1d6 | 574 | void |
ccd318fb RS |
575 | perror_1 (string) |
576 | char *string; | |
577 | { | |
578 | char *copy = (char *) malloc (strlen (string) + 8); | |
579 | if (copy == 0) | |
580 | fatal_error ("Virtual memory exhausted"); | |
581 | ||
582 | strcpy (copy, "Error: "); | |
583 | strcat (copy, string); | |
584 | perror (copy); | |
585 | } | |
586 | ||
4e7ef1d6 | 587 | void |
ccd318fb RS |
588 | fatal_error (string) |
589 | char *string; | |
590 | { | |
591 | fprintf (stderr, "%s", "Error: "); | |
592 | fprintf (stderr, string); | |
593 | exit (1); | |
594 | } | |
bbe73f05 | 595 | #endif /* HAVE_SOCKETS or HAVE_SYSVIPC */ |