Commit | Line | Data |
---|---|---|
d953f306 | 1 | /* Communication subprocess for GNU Emacs acting as server. |
86af296b | 2 | Copyright (C) 1986, 1987, 1992, 1994 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 | |
3bd8b59d | 29 | #include <signal.h> |
18160b98 | 30 | #include <../src/config.h> |
d953f306 RS |
31 | #undef read |
32 | #undef write | |
33 | #undef open | |
34 | #undef close | |
5ed8e09c | 35 | #undef signal |
d953f306 | 36 | |
021eac48 | 37 | #if !defined (HAVE_SOCKETS) && !defined (HAVE_SYSVIPC) |
d953f306 RS |
38 | #include <stdio.h> |
39 | ||
4e7ef1d6 | 40 | int |
d953f306 RS |
41 | main () |
42 | { | |
43 | fprintf (stderr, "Sorry, the Emacs server is supported only on systems\n"); | |
44 | fprintf (stderr, "with Berkeley sockets or System V IPC.\n"); | |
45 | exit (1); | |
46 | } | |
47 | ||
48 | #else /* HAVE_SOCKETS or HAVE_SYSVIPC */ | |
49 | ||
4e7ef1d6 AS |
50 | void perror_1 (); |
51 | void fatal_error (); | |
52 | ||
1e523e3d | 53 | #if defined (HAVE_SOCKETS) && ! defined (NO_SOCKETS_IN_FILE_SYSTEM) |
d953f306 RS |
54 | /* BSD code is very different from SYSV IPC code */ |
55 | ||
d953f306 | 56 | #include <sys/types.h> |
908d6b87 | 57 | #include <sys/file.h> |
d953f306 | 58 | #include <sys/socket.h> |
d953f306 RS |
59 | #include <sys/un.h> |
60 | #include <stdio.h> | |
61 | #include <errno.h> | |
cbf5f47c | 62 | #include <sys/stat.h> |
d953f306 | 63 | |
4e7ef1d6 AS |
64 | #ifdef HAVE_UNISTD_H |
65 | #include <unistd.h> | |
66 | #endif | |
67 | ||
d953f306 RS |
68 | extern int errno; |
69 | ||
b38bab94 KH |
70 | /* Copied from src/process.c */ |
71 | #ifdef FD_SET | |
72 | /* We could get this from param.h, but better not to depend on finding that. | |
73 | And better not to risk that it might define other symbols used in this | |
74 | file. */ | |
75 | #ifdef FD_SETSIZE | |
76 | #define MAXDESC FD_SETSIZE | |
77 | #else | |
78 | #define MAXDESC 64 | |
79 | #endif | |
80 | #define SELECT_TYPE fd_set | |
81 | #else /* no FD_SET */ | |
82 | #define MAXDESC 32 | |
83 | #define SELECT_TYPE int | |
84 | ||
85 | /* Define the macros to access a single-int bitmap of descriptors. */ | |
86 | #define FD_SET(n, p) (*(p) |= (1 << (n))) | |
87 | #define FD_CLR(n, p) (*(p) &= ~(1 << (n))) | |
88 | #define FD_ISSET(n, p) (*(p) & (1 << (n))) | |
89 | #define FD_ZERO(p) (*(p) = 0) | |
90 | #endif /* no FD_SET */ | |
91 | ||
d8888efa RS |
92 | /* This is the file name of the socket that we made. */ |
93 | ||
94 | char *socket_name; | |
95 | ||
96 | /* Name of this program. */ | |
97 | ||
98 | char *progname; | |
99 | \f | |
100 | /* Handle fatal signals. */ | |
101 | ||
102 | /* This is the handler. */ | |
103 | ||
104 | SIGTYPE | |
105 | delete_socket (sig) | |
106 | int sig; | |
107 | { | |
108 | signal (sig, SIG_DFL); | |
109 | unlink (socket_name); | |
110 | kill (getpid (), sig); | |
111 | } | |
112 | ||
113 | /* Set up to handle all the signals. */ | |
114 | ||
4e7ef1d6 | 115 | void |
d8888efa RS |
116 | handle_signals () |
117 | { | |
118 | signal (SIGHUP, delete_socket); | |
119 | signal (SIGINT, delete_socket); | |
120 | signal (SIGQUIT, delete_socket); | |
121 | signal (SIGILL, delete_socket); | |
122 | signal (SIGTRAP, delete_socket); | |
123 | #ifdef SIGABRT | |
124 | signal (SIGABRT, delete_socket); | |
125 | #endif | |
126 | #ifdef SIGHWE | |
127 | signal (SIGHWE, delete_socket); | |
128 | #endif | |
129 | #ifdef SIGPRE | |
130 | signal (SIGPRE, delete_socket); | |
131 | #endif | |
132 | #ifdef SIGORE | |
133 | signal (SIGORE, delete_socket); | |
134 | #endif | |
135 | #ifdef SIGUME | |
136 | signal (SIGUME, delete_socket); | |
137 | #endif | |
138 | #ifdef SIGDLK | |
139 | signal (SIGDLK, delete_socket); | |
140 | #endif | |
141 | #ifdef SIGCPULIM | |
142 | signal (SIGCPULIM, delete_socket); | |
143 | #endif | |
144 | #ifdef SIGIOT | |
145 | /* This is missing on some systems - OS/2, for example. */ | |
146 | signal (SIGIOT, delete_socket); | |
147 | #endif | |
148 | #ifdef SIGEMT | |
149 | signal (SIGEMT, delete_socket); | |
150 | #endif | |
151 | signal (SIGFPE, delete_socket); | |
152 | #ifdef SIGBUS | |
153 | signal (SIGBUS, delete_socket); | |
154 | #endif | |
155 | signal (SIGSEGV, delete_socket); | |
156 | #ifdef SIGSYS | |
157 | signal (SIGSYS, delete_socket); | |
158 | #endif | |
159 | signal (SIGTERM, delete_socket); | |
160 | #ifdef SIGXCPU | |
161 | signal (SIGXCPU, delete_socket); | |
162 | #endif | |
163 | #ifdef SIGXFSZ | |
164 | signal (SIGXFSZ, delete_socket); | |
165 | #endif /* SIGXFSZ */ | |
166 | ||
167 | #ifdef AIX | |
168 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ | |
169 | signal (SIGXCPU, delete_socket); | |
170 | #ifndef _I386 | |
171 | signal (SIGIOINT, delete_socket); | |
172 | #endif | |
173 | signal (SIGGRANT, delete_socket); | |
174 | signal (SIGRETRACT, delete_socket); | |
175 | signal (SIGSOUND, delete_socket); | |
176 | signal (SIGMSG, delete_socket); | |
177 | #endif /* AIX */ | |
178 | } | |
179 | \f | |
180 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
181 | void | |
182 | error (s1, s2) | |
183 | char *s1, *s2; | |
184 | { | |
185 | fprintf (stderr, "%s: ", progname); | |
186 | fprintf (stderr, s1, s2); | |
187 | fprintf (stderr, "\n"); | |
188 | } | |
189 | ||
190 | /* Print error message and exit. */ | |
191 | void | |
192 | fatal (s1, s2) | |
193 | char *s1, *s2; | |
194 | { | |
195 | error (s1, s2); | |
196 | exit (1); | |
197 | } | |
198 | ||
199 | /* Like malloc but get fatal error if memory is exhausted. */ | |
200 | ||
201 | long * | |
202 | xmalloc (size) | |
203 | unsigned int size; | |
204 | { | |
205 | long *result = (long *) malloc (size); | |
206 | if (result == NULL) | |
207 | fatal ("virtual memory exhausted", 0); | |
208 | return result; | |
209 | } | |
210 | \f | |
c275f129 | 211 | int |
d8888efa RS |
212 | main (argc, argv) |
213 | int argc; | |
214 | char **argv; | |
d953f306 | 215 | { |
1464f5d5 | 216 | char system_name[32]; |
4893a437 | 217 | int s, infd; |
57b1f720 RS |
218 | #ifdef SOCKLEN_TYPE |
219 | SOCKLEN_TYPE fromlen; | |
220 | #else | |
4893a437 | 221 | size_t fromlen; |
57b1f720 | 222 | #endif |
4893a437 | 223 | struct sockaddr_un server, fromunix; |
d953f306 RS |
224 | char *homedir; |
225 | char *str, string[BUFSIZ], code[BUFSIZ]; | |
226 | FILE *infile; | |
227 | FILE **openfiles; | |
228 | int openfiles_size; | |
cbf5f47c | 229 | struct stat statbuf; |
d953f306 | 230 | |
f662f9b0 | 231 | #ifndef convex |
d953f306 | 232 | char *getenv (); |
f662f9b0 | 233 | #endif |
d953f306 | 234 | |
d8888efa RS |
235 | progname = argv[0]; |
236 | ||
d953f306 RS |
237 | openfiles_size = 20; |
238 | openfiles = (FILE **) malloc (openfiles_size * sizeof (FILE *)); | |
239 | if (openfiles == 0) | |
240 | abort (); | |
241 | ||
242 | /* | |
243 | * Open up an AF_UNIX socket in this person's home directory | |
244 | */ | |
245 | ||
246 | if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) | |
247 | { | |
ccd318fb | 248 | perror_1 ("socket"); |
d953f306 RS |
249 | exit (1); |
250 | } | |
251 | server.sun_family = AF_UNIX; | |
1464f5d5 JB |
252 | #ifndef SERVER_HOME_DIR |
253 | gethostname (system_name, sizeof (system_name)); | |
254 | sprintf (server.sun_path, "/tmp/esrv%d-%s", geteuid (), system_name); | |
255 | ||
256 | if (unlink (server.sun_path) == -1 && errno != ENOENT) | |
257 | { | |
ccd318fb | 258 | perror_1 ("unlink"); |
1464f5d5 JB |
259 | exit (1); |
260 | } | |
261 | #else | |
262 | if ((homedir = getenv ("HOME")) == NULL) | |
ccd318fb RS |
263 | fatal_error ("No home directory\n"); |
264 | ||
d953f306 | 265 | strcpy (server.sun_path, homedir); |
021eac48 RS |
266 | strcat (server.sun_path, "/.emacs-server-"); |
267 | gethostname (system_name, sizeof (system_name)); | |
268 | strcat (server.sun_path, system_name); | |
d953f306 RS |
269 | /* Delete anyone else's old server. */ |
270 | unlink (server.sun_path); | |
1464f5d5 JB |
271 | #endif |
272 | ||
d8888efa RS |
273 | /* Save the socket name so we can delete it. */ |
274 | socket_name = (char *) xmalloc (strlen (server.sun_path) + 1); | |
275 | strcpy (socket_name, server.sun_path); | |
276 | ||
277 | handle_signals (); | |
278 | ||
2fdfe079 | 279 | if (bind (s, (struct sockaddr *) &server, strlen (server.sun_path) + 2) < 0) |
d953f306 | 280 | { |
ccd318fb | 281 | perror_1 ("bind"); |
d953f306 RS |
282 | exit (1); |
283 | } | |
284 | /* Only this user can send commands to this Emacs. */ | |
cbf5f47c KH |
285 | if (stat (server.sun_path, &statbuf) < 0) |
286 | { | |
287 | perror_1 ("bind"); | |
288 | exit (1); | |
289 | } | |
290 | ||
291 | chmod (server.sun_path, statbuf.st_mode & 0600); | |
d953f306 RS |
292 | /* |
293 | * Now, just wait for everything to come in.. | |
294 | */ | |
295 | if (listen (s, 5) < 0) | |
296 | { | |
ccd318fb | 297 | perror_1 ("listen"); |
d953f306 RS |
298 | exit (1); |
299 | } | |
300 | ||
301 | /* Disable sigpipes in case luser kills client... */ | |
302 | signal (SIGPIPE, SIG_IGN); | |
303 | for (;;) | |
304 | { | |
b38bab94 | 305 | SELECT_TYPE rmask; |
86af296b RM |
306 | FD_ZERO (&rmask); |
307 | FD_SET (0, &rmask); | |
308 | FD_SET (s, &rmask); | |
b38bab94 | 309 | if (select (s + 1, &rmask, 0, 0, 0) < 0) |
ccd318fb | 310 | perror_1 ("select"); |
86af296b | 311 | if (FD_ISSET (s, &rmask)) /* client sends list of filenames */ |
d953f306 RS |
312 | { |
313 | fromlen = sizeof (fromunix); | |
314 | fromunix.sun_family = AF_UNIX; | |
b38bab94 | 315 | infd = accept (s, (struct sockaddr *) &fromunix, &fromlen); |
d953f306 RS |
316 | if (infd < 0) |
317 | { | |
318 | if (errno == EMFILE || errno == ENFILE) | |
ccd318fb | 319 | fprintf (stderr, "Error: too many clients.\n"); |
d953f306 | 320 | else |
ccd318fb | 321 | perror_1 ("accept"); |
d953f306 RS |
322 | continue; |
323 | } | |
324 | ||
325 | if (infd >= openfiles_size) | |
326 | { | |
327 | openfiles_size *= 2; | |
328 | openfiles = (FILE **) realloc (openfiles, | |
329 | openfiles_size * sizeof (FILE *)); | |
330 | if (openfiles == 0) | |
331 | abort (); | |
332 | } | |
333 | ||
334 | infile = fdopen (infd, "r+"); /* open stream */ | |
335 | if (infile == NULL) | |
336 | { | |
ccd318fb | 337 | fprintf (stderr, "Error: too many clients.\n"); |
d953f306 RS |
338 | write (infd, "Too many clients.\n", 18); |
339 | close (infd); /* Prevent descriptor leak.. */ | |
340 | continue; | |
341 | } | |
342 | str = fgets (string, BUFSIZ, infile); | |
343 | if (str == NULL) | |
344 | { | |
ccd318fb | 345 | perror_1 ("fgets"); |
d953f306 RS |
346 | close (infd); /* Prevent descriptor leak.. */ |
347 | continue; | |
348 | } | |
349 | openfiles[infd] = infile; | |
350 | printf ("Client: %d %s", infd, string); | |
351 | /* If what we read did not end in a newline, | |
352 | it means there is more. Keep reading from the socket | |
353 | and outputting to Emacs, until we get the newline. */ | |
354 | while (string[strlen (string) - 1] != '\n') | |
355 | { | |
356 | if (fgets (string, BUFSIZ, infile) == 0) | |
357 | break; | |
358 | printf ("%s", string); | |
359 | } | |
360 | fflush (stdout); | |
361 | fflush (infile); | |
362 | continue; | |
363 | } | |
86af296b | 364 | else if (FD_ISSET (0, &rmask)) /* emacs sends codeword, fd, and string message */ |
d953f306 RS |
365 | { |
366 | /* Read command codeword and fd */ | |
367 | clearerr (stdin); | |
368 | scanf ("%s %d%*c", code, &infd); | |
369 | if (ferror (stdin) || feof (stdin)) | |
ccd318fb | 370 | fatal_error ("server: error reading from standard input\n"); |
d953f306 RS |
371 | |
372 | /* Transfer text from Emacs to the client, up to a newline. */ | |
373 | infile = openfiles[infd]; | |
cbd1aee2 | 374 | rewind (infile); |
d953f306 RS |
375 | while (1) |
376 | { | |
377 | if (fgets (string, BUFSIZ, stdin) == 0) | |
378 | break; | |
379 | fprintf (infile, "%s", string); | |
380 | if (string[strlen (string) - 1] == '\n') | |
381 | break; | |
382 | } | |
383 | fflush (infile); | |
384 | ||
385 | /* If command is close, close connection to client. */ | |
386 | if (strncmp (code, "Close:", 6) == 0) | |
387 | if (infd > 2) | |
388 | { | |
389 | fclose (infile); | |
390 | close (infd); | |
391 | } | |
392 | continue; | |
393 | } | |
394 | } | |
395 | } | |
396 | ||
397 | #else /* This is the SYSV IPC section */ | |
398 | ||
399 | #include <sys/types.h> | |
d953f306 RS |
400 | #include <sys/ipc.h> |
401 | #include <sys/msg.h> | |
402 | #include <setjmp.h> | |
b8a0f2d8 | 403 | #include <errno.h> |
021eac48 RS |
404 | #include <sys/utsname.h> |
405 | ||
406 | struct utsname system_name; | |
b8a0f2d8 RS |
407 | |
408 | #ifndef errno | |
409 | extern int errno; | |
410 | #endif | |
d953f306 RS |
411 | |
412 | jmp_buf msgenv; | |
413 | ||
d4327fec | 414 | SIGTYPE |
d953f306 RS |
415 | msgcatch () |
416 | { | |
417 | longjmp (msgenv, 1); | |
418 | } | |
419 | ||
420 | ||
421 | /* "THIS has to be fixed. Remember, stderr may not exist...-rlk." | |
422 | Incorrect. This program runs as an inferior of Emacs. | |
423 | Its stderr always exists--rms. */ | |
424 | #include <stdio.h> | |
425 | ||
4e7ef1d6 | 426 | int |
d953f306 RS |
427 | main () |
428 | { | |
2f317998 | 429 | int s, infd, fromlen, ioproc; |
d953f306 RS |
430 | key_t key; |
431 | struct msgbuf * msgp = | |
432 | (struct msgbuf *) malloc (sizeof *msgp + BUFSIZ); | |
433 | struct msqid_ds msg_st; | |
434 | int p; | |
435 | char *homedir, *getenv (); | |
436 | char string[BUFSIZ]; | |
437 | FILE *infile; | |
438 | ||
439 | /* | |
021eac48 | 440 | * Create a message queue using ~/.emacs-server as the path for ftok |
d953f306 RS |
441 | */ |
442 | if ((homedir = getenv ("HOME")) == NULL) | |
ccd318fb RS |
443 | fatal_error ("No home directory\n"); |
444 | ||
d953f306 | 445 | strcpy (string, homedir); |
021eac48 RS |
446 | #ifndef HAVE_LONG_FILE_NAMES |
447 | /* If file names are short, we can't fit the host name. */ | |
448 | strcat (string, "/.emacs-server"); | |
449 | #else | |
450 | strcat (string, "/.emacs-server-"); | |
451 | uname (&system_name); | |
452 | strcat (string, system_name.nodename); | |
453 | #endif | |
d953f306 RS |
454 | creat (string, 0600); |
455 | key = ftok (string, 1); /* unlikely to be anyone else using it */ | |
456 | s = msgget (key, 0600 | IPC_CREAT); | |
457 | if (s == -1) | |
458 | { | |
ccd318fb | 459 | perror_1 ("msgget"); |
d953f306 RS |
460 | exit (1); |
461 | } | |
462 | ||
463 | /* Fork so we can close connection even if parent dies */ | |
464 | p = fork (); | |
465 | if (setjmp (msgenv)) | |
466 | { | |
467 | msgctl (s, IPC_RMID, 0); | |
b8a0f2d8 RS |
468 | if (p > 0) |
469 | kill (p, SIGKILL); | |
d953f306 RS |
470 | exit (0); |
471 | } | |
472 | signal (SIGTERM, msgcatch); | |
473 | signal (SIGINT, msgcatch); | |
b8a0f2d8 | 474 | signal (SIGHUP, msgcatch); |
9e3891de | 475 | if (p > 0) |
d953f306 | 476 | { |
9e3891de RS |
477 | /* This is executed in the original process that did the fork above. */ |
478 | /* Get pid of Emacs itself. */ | |
d953f306 RS |
479 | p = getppid (); |
480 | setpgrp (); /* Gnu kills process group on exit */ | |
481 | while (1) | |
482 | { | |
9e3891de | 483 | /* Is Emacs still alive? */ |
d953f306 RS |
484 | if (kill (p, 0) < 0) |
485 | { | |
486 | msgctl (s, IPC_RMID, 0); | |
487 | exit (0); | |
488 | } | |
489 | sleep (10); | |
490 | } | |
491 | } | |
492 | ||
2f317998 RS |
493 | /* This is executed in the child made by forking above. |
494 | Call it c1. Make another process, ioproc. */ | |
495 | ||
496 | ioproc = fork (); | |
497 | if (ioproc == 0) | |
498 | { | |
499 | /* In process ioproc, wait for text from Emacs, | |
500 | and send it to the process c1. | |
501 | This way, c1 only has to wait for one source of input. */ | |
502 | while (fgets (msgp->mtext, BUFSIZ, stdin)) | |
503 | { | |
504 | msgp->mtype = 1; | |
505 | msgsnd (s, msgp, strlen (msgp->mtext) + 1, 0); | |
506 | } | |
507 | exit (1); | |
508 | } | |
509 | ||
510 | /* In the process c1, | |
511 | listen for messages from clients and pass them to Emacs. */ | |
d953f306 RS |
512 | while (1) |
513 | { | |
514 | if ((fromlen = msgrcv (s, msgp, BUFSIZ - 1, 1, 0)) < 0) | |
515 | { | |
b8a0f2d8 RS |
516 | #ifdef EINTR |
517 | if (errno == EINTR) | |
518 | continue; | |
519 | #endif | |
ccd318fb | 520 | perror_1 ("msgrcv"); |
1464f5d5 | 521 | exit (1); |
d953f306 RS |
522 | } |
523 | else | |
524 | { | |
525 | msgctl (s, IPC_STAT, &msg_st); | |
2f317998 RS |
526 | |
527 | /* Distinguish whether the message came from a client, or from | |
528 | ioproc. */ | |
529 | if (msg_st.msg_lspid == ioproc) | |
530 | { | |
531 | char code[BUFSIZ]; | |
532 | int inproc; | |
533 | ||
534 | /* Message from ioproc: tell a client we are done. */ | |
535 | msgp->mtext[strlen (msgp->mtext)-1] = 0; | |
536 | sscanf (msgp->mtext, "%s %d", code, &inproc); | |
537 | msgp->mtype = inproc; | |
538 | msgsnd (s, msgp, strlen (msgp->mtext) + 1, 0); | |
539 | continue; | |
540 | } | |
541 | ||
542 | /* This is a request from a client: copy to stdout | |
543 | so that Emacs will get it. Include msg_lspid | |
544 | so server.el can tell us where to send the reply. */ | |
d953f306 RS |
545 | strncpy (string, msgp->mtext, fromlen); |
546 | string[fromlen] = 0; /* make sure */ | |
547 | /* Newline is part of string.. */ | |
2f317998 | 548 | printf ("Client: %d %s", msg_st.msg_lspid, string); |
d953f306 | 549 | fflush (stdout); |
d953f306 RS |
550 | } |
551 | } | |
552 | } | |
553 | ||
554 | #endif /* HAVE_SYSVIPC */ | |
555 | ||
556 | #endif /* HAVE_SOCKETS or HAVE_SYSVIPC */ | |
ccd318fb RS |
557 | \f |
558 | /* This is like perror but puts `Error: ' at the beginning. */ | |
559 | ||
4e7ef1d6 | 560 | void |
ccd318fb RS |
561 | perror_1 (string) |
562 | char *string; | |
563 | { | |
564 | char *copy = (char *) malloc (strlen (string) + 8); | |
565 | if (copy == 0) | |
566 | fatal_error ("Virtual memory exhausted"); | |
567 | ||
568 | strcpy (copy, "Error: "); | |
569 | strcat (copy, string); | |
570 | perror (copy); | |
571 | } | |
572 | ||
4e7ef1d6 | 573 | void |
ccd318fb RS |
574 | fatal_error (string) |
575 | char *string; | |
576 | { | |
577 | fprintf (stderr, "%s", "Error: "); | |
578 | fprintf (stderr, string); | |
579 | exit (1); | |
580 | } |