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80856e74 | 1 | /* Synchronous subprocess invocation for GNU Emacs. |
044512ed | 2 | Copyright (C) 1985, 1986, 1987, 1988 Free Software Foundation, Inc. |
80856e74 JB |
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 | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #include <signal.h> | |
22 | ||
23 | #include "config.h" | |
24 | ||
25 | /* Define SIGCHLD as an alias for SIGCLD. */ | |
26 | ||
27 | #if !defined (SIGCHLD) && defined (SIGCLD) | |
28 | #define SIGCHLD SIGCLD | |
29 | #endif /* SIGCLD */ | |
30 | ||
31 | #include <sys/types.h> | |
32 | #define PRIO_PROCESS 0 | |
33 | #include <sys/file.h> | |
34 | #ifdef USG5 | |
35 | #include <fcntl.h> | |
36 | #endif | |
37 | ||
38 | #ifndef O_RDONLY | |
39 | #define O_RDONLY 0 | |
40 | #endif | |
41 | ||
42 | #ifndef O_WRONLY | |
43 | #define O_WRONLY 1 | |
44 | #endif | |
45 | ||
46 | #include "lisp.h" | |
47 | #include "commands.h" | |
48 | #include "buffer.h" | |
49 | #include "paths.h" | |
50 | #include "process.h" | |
51 | ||
52 | #ifdef VMS | |
53 | extern noshare char **environ; | |
54 | #else | |
55 | extern char **environ; | |
56 | #endif | |
57 | ||
58 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
59 | ||
044512ed | 60 | Lisp_Object Vexec_path, Vexec_directory; |
80856e74 JB |
61 | |
62 | Lisp_Object Vshell_file_name; | |
63 | ||
044512ed RS |
64 | #ifndef MAINTAIN_ENVIRONMENT |
65 | /* List of strings to append to front of environment of | |
66 | all subprocesses when they are started. */ | |
67 | ||
80856e74 | 68 | Lisp_Object Vprocess_environment; |
044512ed | 69 | #endif |
80856e74 JB |
70 | |
71 | /* True iff we are about to fork off a synchronous process or if we | |
72 | are waiting for it. */ | |
73 | int synch_process_alive; | |
74 | ||
75 | /* Nonzero => this is a string explaining death of synchronous subprocess. */ | |
76 | char *synch_process_death; | |
77 | ||
78 | /* If synch_process_death is zero, | |
79 | this is exit code of synchronous subprocess. */ | |
80 | int synch_process_retcode; | |
81 | \f | |
82 | #ifndef VMS /* VMS version is in vmsproc.c. */ | |
83 | ||
84 | Lisp_Object | |
85 | call_process_cleanup (fdpid) | |
86 | Lisp_Object fdpid; | |
87 | { | |
88 | register Lisp_Object fd, pid; | |
89 | fd = Fcar (fdpid); | |
90 | pid = Fcdr (fdpid); | |
91 | close (XFASTINT (fd)); | |
92 | kill (XFASTINT (pid), SIGKILL); | |
93 | synch_process_alive = 0; | |
94 | return Qnil; | |
95 | } | |
96 | ||
97 | DEFUN ("call-process", Fcall_process, Scall_process, 1, MANY, 0, | |
98 | "Call PROGRAM synchronously in separate process.\n\ | |
99 | The program's input comes from file INFILE (nil means `/dev/null').\n\ | |
100 | Insert output in BUFFER before point; t means current buffer;\n\ | |
101 | nil for BUFFER means discard it; 0 means discard and don't wait.\n\ | |
102 | Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.\n\ | |
103 | Remaining arguments are strings passed as command arguments to PROGRAM.\n\ | |
104 | If BUFFER is nil or 0, returns immediately with value nil.\n\ | |
105 | Otherwise waits for PROGRAM to terminate\n\ | |
044512ed | 106 | and returns a numeric exit status or a signal name as a string.\n\ |
80856e74 JB |
107 | If you quit, the process is killed with SIGKILL.") |
108 | (nargs, args) | |
109 | int nargs; | |
110 | register Lisp_Object *args; | |
111 | { | |
044512ed | 112 | Lisp_Object display, buffer, path; |
80856e74 JB |
113 | int fd[2]; |
114 | int filefd; | |
115 | register int pid; | |
116 | char buf[1024]; | |
117 | int count = specpdl_ptr - specpdl; | |
118 | register unsigned char **new_argv | |
119 | = (unsigned char **) alloca ((max (2, nargs - 2)) * sizeof (char *)); | |
120 | struct buffer *old = current_buffer; | |
121 | #if 0 | |
122 | int mask; | |
123 | #endif | |
044512ed RS |
124 | struct gcpro gcpro1; |
125 | ||
126 | GCPRO1 (*args); | |
127 | gcpro1.nvars = nargs; | |
128 | ||
80856e74 JB |
129 | CHECK_STRING (args[0], 0); |
130 | ||
012c6fcb | 131 | if (nargs <= 1 || NILP (args[1])) |
044512ed | 132 | args[1] = build_string ("/dev/null"); |
80856e74 | 133 | else |
044512ed | 134 | args[1] = Fexpand_file_name (args[1], current_buffer->directory); |
80856e74 | 135 | |
044512ed RS |
136 | CHECK_STRING (args[1], 1); |
137 | ||
138 | { | |
139 | register Lisp_Object tem; | |
140 | buffer = tem = args[2]; | |
141 | if (nargs <= 2) | |
142 | buffer = Qnil; | |
143 | else if (!(EQ (tem, Qnil) || EQ (tem, Qt) | |
144 | || XFASTINT (tem) == 0)) | |
145 | { | |
146 | buffer = Fget_buffer (tem); | |
147 | CHECK_BUFFER (buffer, 2); | |
148 | } | |
149 | } | |
80856e74 | 150 | |
044512ed | 151 | display = nargs >= 3 ? args[3] : Qnil; |
80856e74 JB |
152 | |
153 | { | |
154 | register int i; | |
155 | for (i = 4; i < nargs; i++) | |
156 | { | |
157 | CHECK_STRING (args[i], i); | |
158 | new_argv[i - 3] = XSTRING (args[i])->data; | |
159 | } | |
160 | /* Program name is first command arg */ | |
161 | new_argv[0] = XSTRING (args[0])->data; | |
162 | new_argv[i - 3] = 0; | |
163 | } | |
164 | ||
044512ed | 165 | filefd = open (XSTRING (args[1])->data, O_RDONLY, 0); |
80856e74 JB |
166 | if (filefd < 0) |
167 | { | |
044512ed | 168 | report_file_error ("Opening process input file", Fcons (args[1], Qnil)); |
80856e74 JB |
169 | } |
170 | /* Search for program; barf if not found. */ | |
171 | openp (Vexec_path, args[0], "", &path, 1); | |
012c6fcb | 172 | if (NILP (path)) |
80856e74 JB |
173 | { |
174 | close (filefd); | |
175 | report_file_error ("Searching for program", Fcons (args[0], Qnil)); | |
176 | } | |
177 | new_argv[0] = XSTRING (path)->data; | |
178 | ||
179 | if (XTYPE (buffer) == Lisp_Int) | |
180 | fd[1] = open ("/dev/null", O_WRONLY), fd[0] = -1; | |
181 | else | |
182 | { | |
183 | pipe (fd); | |
184 | #if 0 | |
185 | /* Replaced by close_process_descs */ | |
186 | set_exclusive_use (fd[0]); | |
187 | #endif | |
188 | } | |
189 | ||
190 | { | |
191 | /* child_setup must clobber environ in systems with true vfork. | |
192 | Protect it from permanent change. */ | |
193 | register char **save_environ = environ; | |
194 | register int fd1 = fd[1]; | |
044512ed RS |
195 | char **env; |
196 | ||
197 | #ifdef MAINTAIN_ENVIRONMENT | |
198 | env = (char **) alloca (size_of_current_environ ()); | |
199 | get_current_environ (env); | |
200 | #else | |
201 | env = environ; | |
202 | #endif /* MAINTAIN_ENVIRONMENT */ | |
80856e74 JB |
203 | |
204 | #if 0 /* Some systems don't have sigblock. */ | |
e065a56e | 205 | mask = sigblock (sigmask (SIGCHLD)); |
80856e74 JB |
206 | #endif |
207 | ||
208 | /* Record that we're about to create a synchronous process. */ | |
209 | synch_process_alive = 1; | |
210 | ||
211 | pid = vfork (); | |
212 | ||
213 | if (pid == 0) | |
214 | { | |
215 | if (fd[0] >= 0) | |
216 | close (fd[0]); | |
217 | #ifdef USG | |
218 | setpgrp (); | |
219 | #else | |
220 | setpgrp (pid, pid); | |
221 | #endif /* USG */ | |
044512ed | 222 | child_setup (filefd, fd1, fd1, new_argv, env, 0); |
80856e74 JB |
223 | } |
224 | ||
225 | #if 0 | |
226 | /* Tell SIGCHLD handler to look for this pid. */ | |
227 | synch_process_pid = pid; | |
228 | /* Now let SIGCHLD come through. */ | |
e065a56e | 229 | sigsetmask (mask); |
80856e74 JB |
230 | #endif |
231 | ||
232 | environ = save_environ; | |
233 | ||
234 | close (filefd); | |
235 | close (fd1); | |
236 | } | |
237 | ||
238 | if (pid < 0) | |
239 | { | |
240 | close (fd[0]); | |
241 | report_file_error ("Doing vfork", Qnil); | |
242 | } | |
243 | ||
244 | if (XTYPE (buffer) == Lisp_Int) | |
245 | { | |
246 | #ifndef subprocesses | |
247 | wait_without_blocking (); | |
248 | #endif /* subprocesses */ | |
044512ed RS |
249 | |
250 | UNGCPRO; | |
80856e74 JB |
251 | return Qnil; |
252 | } | |
253 | ||
254 | record_unwind_protect (call_process_cleanup, | |
255 | Fcons (make_number (fd[0]), make_number (pid))); | |
256 | ||
257 | ||
258 | if (XTYPE (buffer) == Lisp_Buffer) | |
259 | Fset_buffer (buffer); | |
260 | ||
261 | immediate_quit = 1; | |
262 | QUIT; | |
263 | ||
264 | { | |
265 | register int nread; | |
266 | ||
267 | while ((nread = read (fd[0], buf, sizeof buf)) > 0) | |
268 | { | |
269 | immediate_quit = 0; | |
012c6fcb | 270 | if (!NILP (buffer)) |
80856e74 | 271 | insert (buf, nread); |
012c6fcb | 272 | if (!NILP (display) && INTERACTIVE) |
80856e74 JB |
273 | redisplay_preserve_echo_area (); |
274 | immediate_quit = 1; | |
275 | QUIT; | |
276 | } | |
277 | } | |
278 | ||
279 | /* Wait for it to terminate, unless it already has. */ | |
280 | wait_for_termination (pid); | |
281 | ||
282 | immediate_quit = 0; | |
283 | ||
284 | set_buffer_internal (old); | |
285 | ||
286 | unbind_to (count, Qnil); | |
287 | ||
044512ed RS |
288 | UNGCPRO; |
289 | ||
80856e74 JB |
290 | if (synch_process_death) |
291 | return build_string (synch_process_death); | |
292 | return make_number (synch_process_retcode); | |
293 | } | |
294 | #endif | |
295 | \f | |
296 | static void | |
297 | delete_temp_file (name) | |
298 | Lisp_Object name; | |
299 | { | |
300 | unlink (XSTRING (name)->data); | |
301 | } | |
302 | ||
303 | DEFUN ("call-process-region", Fcall_process_region, Scall_process_region, | |
304 | 3, MANY, 0, | |
305 | "Send text from START to END to a synchronous process running PROGRAM.\n\ | |
306 | Delete the text if fourth arg DELETE is non-nil.\n\ | |
307 | Insert output in BUFFER before point; t means current buffer;\n\ | |
308 | nil for BUFFER means discard it; 0 means discard and don't wait.\n\ | |
309 | Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted.\n\ | |
310 | Remaining args are passed to PROGRAM at startup as command args.\n\ | |
311 | If BUFFER is nil, returns immediately with value nil.\n\ | |
312 | Otherwise waits for PROGRAM to terminate\n\ | |
044512ed | 313 | and returns a numeric exit status or a signal name as a string.\n\ |
80856e74 JB |
314 | If you quit, the process is killed with SIGKILL.") |
315 | (nargs, args) | |
316 | int nargs; | |
317 | register Lisp_Object *args; | |
318 | { | |
319 | register Lisp_Object filename_string, start, end; | |
320 | char tempfile[20]; | |
321 | int count = specpdl_ptr - specpdl; | |
044512ed RS |
322 | struct gcpro gcpro1; |
323 | ||
324 | GCPRO1 (*args); | |
325 | gcpro1.nvars = 2; | |
80856e74 JB |
326 | |
327 | #ifdef VMS | |
328 | strcpy (tempfile, "tmp:emacsXXXXXX."); | |
329 | #else | |
330 | strcpy (tempfile, "/tmp/emacsXXXXXX"); | |
331 | #endif | |
332 | mktemp (tempfile); | |
333 | ||
334 | filename_string = build_string (tempfile); | |
335 | start = args[0]; | |
336 | end = args[1]; | |
337 | Fwrite_region (start, end, filename_string, Qnil, Qlambda); | |
338 | record_unwind_protect (delete_temp_file, filename_string); | |
339 | ||
012c6fcb | 340 | if (!NILP (args[3])) |
80856e74 JB |
341 | Fdelete_region (start, end); |
342 | ||
343 | args[3] = filename_string; | |
344 | Fcall_process (nargs - 2, args + 2); | |
345 | ||
044512ed | 346 | UNGCPRO; |
80856e74 JB |
347 | return unbind_to (count, Qnil); |
348 | } | |
349 | \f | |
350 | #ifndef VMS /* VMS version is in vmsproc.c. */ | |
351 | ||
352 | /* This is the last thing run in a newly forked inferior | |
353 | either synchronous or asynchronous. | |
354 | Copy descriptors IN, OUT and ERR as descriptors 0, 1 and 2. | |
355 | Initialize inferior's priority, pgrp, connected dir and environment. | |
356 | then exec another program based on new_argv. | |
357 | ||
358 | This function may change environ for the superior process. | |
359 | Therefore, the superior process must save and restore the value | |
360 | of environ around the vfork and the call to this function. | |
361 | ||
362 | ENV is the environment for the subprocess. | |
363 | ||
364 | SET_PGRP is nonzero if we should put the subprocess into a separate | |
044512ed | 365 | process group. */ |
80856e74 | 366 | |
044512ed | 367 | child_setup (in, out, err, new_argv, env, set_pgrp) |
80856e74 JB |
368 | int in, out, err; |
369 | register char **new_argv; | |
044512ed | 370 | char **env; |
80856e74 JB |
371 | int set_pgrp; |
372 | { | |
373 | register int pid = getpid(); | |
374 | ||
375 | setpriority (PRIO_PROCESS, pid, 0); | |
376 | ||
377 | #ifdef subprocesses | |
378 | /* Close Emacs's descriptors that this process should not have. */ | |
379 | close_process_descs (); | |
380 | #endif | |
381 | ||
382 | /* Note that use of alloca is always safe here. It's obvious for systems | |
383 | that do not have true vfork or that have true (stack) alloca. | |
384 | If using vfork and C_ALLOCA it is safe because that changes | |
385 | the superior's static variables as if the superior had done alloca | |
386 | and will be cleaned up in the usual way. */ | |
77d78be1 | 387 | |
044512ed RS |
388 | if (XTYPE (current_buffer->directory) == Lisp_String) |
389 | { | |
390 | register unsigned char *temp; | |
391 | register int i; | |
392 | ||
393 | i = XSTRING (current_buffer->directory)->size; | |
394 | temp = (unsigned char *) alloca (i + 2); | |
395 | bcopy (XSTRING (current_buffer->directory)->data, temp, i); | |
396 | if (temp[i - 1] != '/') temp[i++] = '/'; | |
397 | temp[i] = 0; | |
398 | /* Switch to that directory, and report any error. */ | |
399 | if (chdir (temp) < 0) | |
400 | report_file_error ("In chdir", | |
401 | Fcons (current_buffer->directory, Qnil)); | |
402 | } | |
80856e74 | 403 | |
044512ed | 404 | #ifndef MAINTAIN_ENVIRONMENT |
80856e74 JB |
405 | /* Set `env' to a vector of the strings in Vprocess_environment. */ |
406 | { | |
407 | register Lisp_Object tem; | |
408 | register char **new_env; | |
409 | register int new_length; | |
410 | ||
411 | new_length = 0; | |
412 | for (tem = Vprocess_environment; | |
413 | (XTYPE (tem) == Lisp_Cons | |
414 | && XTYPE (XCONS (tem)->car) == Lisp_String); | |
415 | tem = XCONS (tem)->cdr) | |
416 | new_length++; | |
417 | ||
418 | /* new_length + 1 to include terminating 0 */ | |
419 | env = new_env = (char **) alloca ((new_length + 1) * sizeof (char *)); | |
420 | ||
044512ed | 421 | /* Copy the env strings into new_env. */ |
80856e74 JB |
422 | for (tem = Vprocess_environment; |
423 | (XTYPE (tem) == Lisp_Cons | |
424 | && XTYPE (XCONS (tem)->car) == Lisp_String); | |
425 | tem = XCONS (tem)->cdr) | |
426 | *new_env++ = (char *) XSTRING (XCONS (tem)->car)->data; | |
427 | *new_env = 0; | |
428 | } | |
044512ed | 429 | #endif /* Not MAINTAIN_ENVIRONMENT */ |
80856e74 JB |
430 | |
431 | close (0); | |
432 | close (1); | |
433 | close (2); | |
434 | ||
435 | dup2 (in, 0); | |
436 | dup2 (out, 1); | |
437 | dup2 (err, 2); | |
438 | close (in); | |
439 | close (out); | |
440 | close (err); | |
441 | ||
442 | setpgrp_of_tty (pid); | |
443 | ||
444 | #ifdef vipc | |
445 | something missing here; | |
446 | #endif /* vipc */ | |
447 | ||
448 | /* execvp does not accept an environment arg so the only way | |
449 | to pass this environment is to set environ. Our caller | |
450 | is responsible for restoring the ambient value of environ. */ | |
451 | environ = env; | |
452 | execvp (new_argv[0], new_argv); | |
453 | ||
454 | write (1, "Couldn't exec the program ", 26); | |
455 | write (1, new_argv[0], strlen (new_argv[0])); | |
456 | _exit (1); | |
457 | } | |
458 | ||
012c6fcb JA |
459 | static int |
460 | getenv_internal (var, varlen, value, valuelen) | |
461 | char *var; | |
462 | int varlen; | |
463 | char **value; | |
464 | int *valuelen; | |
465 | { | |
466 | Lisp_Object scan; | |
467 | ||
468 | for (scan = Vprocess_environment; CONSP (scan); scan = XCONS (scan)->cdr) | |
469 | { | |
470 | Lisp_Object entry = XCONS (scan)->car; | |
471 | ||
472 | if (XTYPE (entry) == Lisp_String | |
473 | && XSTRING (entry)->size > varlen | |
474 | && XSTRING (entry)->data[varlen] == '=' | |
475 | && ! bcmp (XSTRING (entry)->data, var, varlen)) | |
476 | { | |
477 | *value = (char *) XSTRING (entry)->data + (varlen + 1); | |
478 | *valuelen = XSTRING (entry)->size - (varlen + 1); | |
479 | return 1; | |
480 | } | |
481 | } | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
486 | DEFUN ("getenv", Fgetenv, Sgetenv, 1, 2, 0, | |
487 | "Return the value of environment variable VAR, as a string.\n\ | |
488 | VAR should be a string. Value is nil if VAR is undefined in the environment.\n\ | |
489 | This function consults the variable ``process-environment'' for its value.") | |
490 | (var) | |
491 | Lisp_Object var; | |
492 | { | |
493 | char *value; | |
494 | int valuelen; | |
495 | ||
496 | CHECK_STRING (var, 0); | |
497 | if (getenv_internal (XSTRING (var)->data, XSTRING (var)->size, | |
498 | &value, &valuelen)) | |
499 | return make_string (value, valuelen); | |
500 | else | |
501 | return Qnil; | |
502 | } | |
503 | ||
504 | /* A version of getenv that consults process_environment, easily | |
505 | callable from C. */ | |
506 | char * | |
507 | egetenv (var) | |
508 | char *var; | |
509 | { | |
510 | char *value; | |
511 | int valuelen; | |
512 | ||
513 | if (getenv_internal (var, strlen (var), &value, &valuelen)) | |
514 | return value; | |
515 | else | |
516 | return 0; | |
517 | } | |
518 | ||
80856e74 JB |
519 | #endif /* not VMS */ |
520 | \f | |
521 | init_callproc () | |
522 | { | |
523 | register char * sh; | |
524 | register char **envp; | |
044512ed | 525 | Lisp_Object execdir; |
9453ea7b | 526 | |
044512ed RS |
527 | /* Turn PATH_EXEC into a path. `==' is just a string which we know |
528 | will not be the name of an environment variable. */ | |
529 | Vexec_path = decode_env_path ("==", PATH_EXEC); | |
80856e74 JB |
530 | Vexec_directory = Ffile_name_as_directory (Fcar (Vexec_path)); |
531 | Vexec_path = nconc2 (decode_env_path ("PATH", ""), Vexec_path); | |
532 | ||
044512ed RS |
533 | execdir = Fdirectory_file_name (Vexec_directory); |
534 | if (access (XSTRING (execdir)->data, 0) < 0) | |
80856e74 | 535 | { |
044512ed | 536 | printf ("Warning: executable/documentation dir (%s) does not exist.\n", |
80856e74 JB |
537 | XSTRING (Vexec_directory)->data); |
538 | sleep (2); | |
539 | } | |
540 | ||
541 | #ifdef VMS | |
542 | Vshell_file_name = build_string ("*dcl*"); | |
543 | #else | |
044512ed | 544 | sh = (char *) egetenv ("SHELL"); |
80856e74 JB |
545 | Vshell_file_name = build_string (sh ? sh : "/bin/sh"); |
546 | #endif | |
547 | ||
044512ed RS |
548 | #ifndef MAINTAIN_ENVIRONMENT |
549 | /* The equivalent of this operation was done | |
550 | in init_environ in environ.c if MAINTAIN_ENVIRONMENT */ | |
80856e74 JB |
551 | Vprocess_environment = Qnil; |
552 | #ifndef CANNOT_DUMP | |
553 | if (initialized) | |
554 | #endif | |
555 | for (envp = environ; *envp; envp++) | |
556 | Vprocess_environment = Fcons (build_string (*envp), | |
557 | Vprocess_environment); | |
044512ed | 558 | #endif /* MAINTAIN_ENVIRONMENT */ |
80856e74 JB |
559 | } |
560 | ||
561 | syms_of_callproc () | |
562 | { | |
563 | DEFVAR_LISP ("shell-file-name", &Vshell_file_name, | |
564 | "*File name to load inferior shells from.\n\ | |
565 | Initialized from the SHELL environment variable."); | |
566 | ||
567 | DEFVAR_LISP ("exec-path", &Vexec_path, | |
568 | "*List of directories to search programs to run in subprocesses.\n\ | |
569 | Each element is a string (directory name) or nil (try default directory)."); | |
570 | ||
571 | DEFVAR_LISP ("exec-directory", &Vexec_directory, | |
044512ed RS |
572 | "Directory that holds programs that come with GNU Emacs,\n\ |
573 | intended for Emacs to invoke."); | |
80856e74 | 574 | |
044512ed | 575 | #ifndef MAINTAIN_ENVIRONMENT |
80856e74 | 576 | DEFVAR_LISP ("process-environment", &Vprocess_environment, |
044512ed RS |
577 | "List of strings to append to environment of subprocesses that are started.\n\ |
578 | Each string should have the format ENVVARNAME=VALUE."); | |
579 | #endif | |
80856e74 JB |
580 | |
581 | #ifndef VMS | |
582 | defsubr (&Scall_process); | |
583 | #endif | |
584 | defsubr (&Scall_process_region); | |
012c6fcb | 585 | defsubr (&Sgetenv); |
80856e74 | 586 | } |