Commit | Line | Data |
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80856e74 | 1 | /* Synchronous subprocess invocation for GNU Emacs. |
826c56ac | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994 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 | |
826c56ac | 8 | the Free Software Foundation; either version 2, or (at your option) |
80856e74 JB |
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> | |
e576cab4 | 22 | #include <errno.h> |
80856e74 | 23 | |
18160b98 | 24 | #include <config.h> |
565620a5 | 25 | #include <stdio.h> |
80856e74 | 26 | |
426b37ae | 27 | extern int errno; |
826c56ac | 28 | extern char *strerror (); |
426b37ae | 29 | |
80856e74 JB |
30 | /* Define SIGCHLD as an alias for SIGCLD. */ |
31 | ||
32 | #if !defined (SIGCHLD) && defined (SIGCLD) | |
33 | #define SIGCHLD SIGCLD | |
34 | #endif /* SIGCLD */ | |
35 | ||
36 | #include <sys/types.h> | |
88a64fef | 37 | |
80856e74 JB |
38 | #include <sys/file.h> |
39 | #ifdef USG5 | |
472e83fe | 40 | #define INCLUDED_FCNTL |
80856e74 JB |
41 | #include <fcntl.h> |
42 | #endif | |
43 | ||
bad95d8f RS |
44 | #ifdef WINDOWSNT |
45 | #define NOMINMAX | |
46 | #include <windows.h> | |
47 | #include <stdlib.h> /* for proper declaration of environ */ | |
48 | #include <fcntl.h> | |
49 | #include "nt.h" | |
50 | #define _P_NOWAIT 1 /* from process.h */ | |
51 | #endif | |
52 | ||
7e6c2178 | 53 | #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ |
00353d4f | 54 | #include "msdos.h" |
472e83fe | 55 | #define INCLUDED_FCNTL |
7e6c2178 RS |
56 | #include <fcntl.h> |
57 | #include <sys/stat.h> | |
58 | #include <sys/param.h> | |
59 | #include <errno.h> | |
60 | #endif /* MSDOS */ | |
61 | ||
80856e74 JB |
62 | #ifndef O_RDONLY |
63 | #define O_RDONLY 0 | |
64 | #endif | |
65 | ||
66 | #ifndef O_WRONLY | |
67 | #define O_WRONLY 1 | |
68 | #endif | |
69 | ||
70 | #include "lisp.h" | |
71 | #include "commands.h" | |
72 | #include "buffer.h" | |
2a6b3537 | 73 | #include <paths.h> |
80856e74 | 74 | #include "process.h" |
d177f194 | 75 | #include "syssignal.h" |
a129418f | 76 | #include "systty.h" |
80856e74 JB |
77 | |
78 | #ifdef VMS | |
79 | extern noshare char **environ; | |
80 | #else | |
81 | extern char **environ; | |
82 | #endif | |
83 | ||
84 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
85 | ||
bad95d8f | 86 | #ifdef DOS_NT |
093650fe RS |
87 | /* When we are starting external processes we need to know whether they |
88 | take binary input (no conversion) or text input (\n is converted to | |
89 | \r\n). Similar for output: if newlines are written as \r\n then it's | |
90 | text process output, otherwise it's binary. */ | |
91 | Lisp_Object Vbinary_process_input; | |
92 | Lisp_Object Vbinary_process_output; | |
bad95d8f | 93 | #endif /* DOS_NT */ |
7e6c2178 | 94 | |
35a2f4b8 | 95 | Lisp_Object Vexec_path, Vexec_directory, Vdata_directory, Vdoc_directory; |
ed61592a | 96 | Lisp_Object Vconfigure_info_directory; |
80856e74 JB |
97 | |
98 | Lisp_Object Vshell_file_name; | |
99 | ||
80856e74 | 100 | Lisp_Object Vprocess_environment; |
80856e74 | 101 | |
bad95d8f | 102 | #ifdef DOS_NT |
093650fe | 103 | Lisp_Object Qbuffer_file_type; |
bad95d8f | 104 | #endif /* DOS_NT */ |
093650fe | 105 | |
80856e74 JB |
106 | /* True iff we are about to fork off a synchronous process or if we |
107 | are waiting for it. */ | |
108 | int synch_process_alive; | |
109 | ||
110 | /* Nonzero => this is a string explaining death of synchronous subprocess. */ | |
111 | char *synch_process_death; | |
112 | ||
113 | /* If synch_process_death is zero, | |
114 | this is exit code of synchronous subprocess. */ | |
115 | int synch_process_retcode; | |
8de15d69 RS |
116 | |
117 | extern Lisp_Object Vdoc_file_name; | |
80856e74 | 118 | \f |
37d54121 RS |
119 | /* Clean up when exiting Fcall_process. |
120 | On MSDOS, delete the temporary file on any kind of termination. | |
121 | On Unix, kill the process and any children on termination by signal. */ | |
122 | ||
123 | /* Nonzero if this is termination due to exit. */ | |
124 | static int call_process_exited; | |
125 | ||
80856e74 JB |
126 | #ifndef VMS /* VMS version is in vmsproc.c. */ |
127 | ||
d177f194 JB |
128 | static Lisp_Object |
129 | call_process_kill (fdpid) | |
130 | Lisp_Object fdpid; | |
131 | { | |
132 | close (XFASTINT (Fcar (fdpid))); | |
133 | EMACS_KILLPG (XFASTINT (Fcdr (fdpid)), SIGKILL); | |
134 | synch_process_alive = 0; | |
135 | return Qnil; | |
136 | } | |
137 | ||
80856e74 JB |
138 | Lisp_Object |
139 | call_process_cleanup (fdpid) | |
140 | Lisp_Object fdpid; | |
141 | { | |
7e6c2178 RS |
142 | #ifdef MSDOS |
143 | /* for MSDOS fdpid is really (fd . tempfile) */ | |
c1350752 KH |
144 | register Lisp_Object file; |
145 | file = Fcdr (fdpid); | |
7e6c2178 RS |
146 | close (XFASTINT (Fcar (fdpid))); |
147 | if (strcmp (XSTRING (file)-> data, NULL_DEVICE) != 0) | |
148 | unlink (XSTRING (file)->data); | |
149 | #else /* not MSDOS */ | |
d177f194 JB |
150 | register int pid = XFASTINT (Fcdr (fdpid)); |
151 | ||
6b6e798b | 152 | |
37d54121 | 153 | if (call_process_exited) |
6b6e798b RS |
154 | { |
155 | close (XFASTINT (Fcar (fdpid))); | |
156 | return Qnil; | |
157 | } | |
37d54121 | 158 | |
d177f194 JB |
159 | if (EMACS_KILLPG (pid, SIGINT) == 0) |
160 | { | |
161 | int count = specpdl_ptr - specpdl; | |
162 | record_unwind_protect (call_process_kill, fdpid); | |
163 | message1 ("Waiting for process to die...(type C-g again to kill it instantly)"); | |
164 | immediate_quit = 1; | |
165 | QUIT; | |
166 | wait_for_termination (pid); | |
167 | immediate_quit = 0; | |
168 | specpdl_ptr = specpdl + count; /* Discard the unwind protect. */ | |
169 | message1 ("Waiting for process to die...done"); | |
170 | } | |
80856e74 | 171 | synch_process_alive = 0; |
d177f194 | 172 | close (XFASTINT (Fcar (fdpid))); |
7e6c2178 | 173 | #endif /* not MSDOS */ |
80856e74 JB |
174 | return Qnil; |
175 | } | |
176 | ||
177 | DEFUN ("call-process", Fcall_process, Scall_process, 1, MANY, 0, | |
178 | "Call PROGRAM synchronously in separate process.\n\ | |
179 | The program's input comes from file INFILE (nil means `/dev/null').\n\ | |
180 | Insert output in BUFFER before point; t means current buffer;\n\ | |
181 | nil for BUFFER means discard it; 0 means discard and don't wait.\n\ | |
182 | Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.\n\ | |
183 | Remaining arguments are strings passed as command arguments to PROGRAM.\n\ | |
e576cab4 | 184 | If BUFFER is 0, returns immediately with value nil.\n\ |
80856e74 | 185 | Otherwise waits for PROGRAM to terminate\n\ |
e576cab4 | 186 | and returns a numeric exit status or a signal description string.\n\ |
d177f194 | 187 | If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") |
80856e74 JB |
188 | (nargs, args) |
189 | int nargs; | |
190 | register Lisp_Object *args; | |
191 | { | |
58616e67 | 192 | Lisp_Object infile, buffer, current_dir, display, path; |
80856e74 JB |
193 | int fd[2]; |
194 | int filefd; | |
195 | register int pid; | |
196 | char buf[1024]; | |
197 | int count = specpdl_ptr - specpdl; | |
198 | register unsigned char **new_argv | |
199 | = (unsigned char **) alloca ((max (2, nargs - 2)) * sizeof (char *)); | |
200 | struct buffer *old = current_buffer; | |
7e6c2178 RS |
201 | #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ |
202 | char *outf, *tempfile; | |
203 | int outfilefd; | |
204 | #endif | |
80856e74 JB |
205 | #if 0 |
206 | int mask; | |
207 | #endif | |
80856e74 JB |
208 | CHECK_STRING (args[0], 0); |
209 | ||
7e6c2178 RS |
210 | #ifndef subprocesses |
211 | /* Without asynchronous processes we cannot have BUFFER == 0. */ | |
d50d3dc8 | 212 | if (nargs >= 3 && INTEGERP (args[2])) |
7e6c2178 RS |
213 | error ("Operating system cannot handle asynchronous subprocesses"); |
214 | #endif /* subprocesses */ | |
215 | ||
e576cab4 JB |
216 | if (nargs >= 2 && ! NILP (args[1])) |
217 | { | |
218 | infile = Fexpand_file_name (args[1], current_buffer->directory); | |
219 | CHECK_STRING (infile, 1); | |
220 | } | |
80856e74 | 221 | else |
5437e9f9 | 222 | infile = build_string (NULL_DEVICE); |
80856e74 | 223 | |
e576cab4 JB |
224 | if (nargs >= 3) |
225 | { | |
226 | register Lisp_Object tem; | |
044512ed | 227 | |
e576cab4 JB |
228 | buffer = tem = args[2]; |
229 | if (!(EQ (tem, Qnil) | |
230 | || EQ (tem, Qt) | |
231 | || XFASTINT (tem) == 0)) | |
232 | { | |
233 | buffer = Fget_buffer (tem); | |
234 | CHECK_BUFFER (buffer, 2); | |
235 | } | |
236 | } | |
237 | else | |
238 | buffer = Qnil; | |
80856e74 | 239 | |
58616e67 JB |
240 | /* Make sure that the child will be able to chdir to the current |
241 | buffer's current directory, or its unhandled equivalent. We | |
242 | can't just have the child check for an error when it does the | |
243 | chdir, since it's in a vfork. | |
244 | ||
245 | We have to GCPRO around this because Fexpand_file_name, | |
246 | Funhandled_file_name_directory, and Ffile_accessible_directory_p | |
247 | might call a file name handling function. The argument list is | |
248 | protected by the caller, so all we really have to worry about is | |
249 | buffer. */ | |
250 | { | |
251 | struct gcpro gcpro1, gcpro2, gcpro3; | |
252 | ||
253 | current_dir = current_buffer->directory; | |
254 | ||
255 | GCPRO3 (infile, buffer, current_dir); | |
256 | ||
c52b0b34 KH |
257 | current_dir |
258 | = expand_and_dir_to_file (Funhandled_file_name_directory (current_dir), | |
259 | Qnil); | |
58616e67 JB |
260 | if (NILP (Ffile_accessible_directory_p (current_dir))) |
261 | report_file_error ("Setting current directory", | |
262 | Fcons (current_buffer->directory, Qnil)); | |
263 | ||
264 | UNGCPRO; | |
265 | } | |
266 | ||
e576cab4 | 267 | display = nargs >= 4 ? args[3] : Qnil; |
80856e74 | 268 | |
e576cab4 | 269 | filefd = open (XSTRING (infile)->data, O_RDONLY, 0); |
80856e74 JB |
270 | if (filefd < 0) |
271 | { | |
e576cab4 | 272 | report_file_error ("Opening process input file", Fcons (infile, Qnil)); |
80856e74 JB |
273 | } |
274 | /* Search for program; barf if not found. */ | |
c52b0b34 KH |
275 | { |
276 | struct gcpro gcpro1; | |
277 | ||
278 | GCPRO1 (current_dir); | |
279 | openp (Vexec_path, args[0], EXEC_SUFFIXES, &path, 1); | |
280 | UNGCPRO; | |
281 | } | |
012c6fcb | 282 | if (NILP (path)) |
80856e74 JB |
283 | { |
284 | close (filefd); | |
285 | report_file_error ("Searching for program", Fcons (args[0], Qnil)); | |
286 | } | |
287 | new_argv[0] = XSTRING (path)->data; | |
c52b0b34 KH |
288 | { |
289 | register int i; | |
290 | for (i = 4; i < nargs; i++) | |
291 | { | |
292 | CHECK_STRING (args[i], i); | |
293 | new_argv[i - 3] = XSTRING (args[i])->data; | |
294 | } | |
295 | new_argv[i - 3] = 0; | |
296 | } | |
80856e74 | 297 | |
7e6c2178 RS |
298 | #ifdef MSDOS /* MW, July 1993 */ |
299 | /* These vars record information from process termination. | |
300 | Clear them now before process can possibly terminate, | |
301 | to avoid timing error if process terminates soon. */ | |
302 | synch_process_death = 0; | |
303 | synch_process_retcode = 0; | |
304 | ||
305 | if ((outf = egetenv ("TMP")) || (outf = egetenv ("TEMP"))) | |
306 | strcpy (tempfile = alloca (strlen (outf) + 20), outf); | |
307 | else | |
308 | { | |
309 | tempfile = alloca (20); | |
310 | *tempfile = '\0'; | |
311 | } | |
312 | dostounix_filename (tempfile); | |
313 | if (*tempfile == '\0' || tempfile[strlen (tempfile) - 1] != '/') | |
314 | strcat (tempfile, "/"); | |
315 | strcat (tempfile, "detmp.XXX"); | |
316 | mktemp (tempfile); | |
317 | ||
318 | outfilefd = creat (tempfile, S_IREAD | S_IWRITE); | |
319 | if (outfilefd < 0) | |
320 | { | |
321 | close (filefd); | |
322 | report_file_error ("Opening process output file", Fcons (tempfile, Qnil)); | |
323 | } | |
324 | #endif | |
325 | ||
d50d3dc8 | 326 | if (INTEGERP (buffer)) |
5437e9f9 | 327 | fd[1] = open (NULL_DEVICE, O_WRONLY), fd[0] = -1; |
80856e74 JB |
328 | else |
329 | { | |
7e6c2178 | 330 | #ifndef MSDOS |
bad95d8f RS |
331 | #ifdef WINDOWSNT |
332 | pipe_with_inherited_out (fd); | |
333 | #else /* not WINDOWSNT */ | |
80856e74 | 334 | pipe (fd); |
bad95d8f | 335 | #endif /* not WINDOWSNT */ |
7e6c2178 | 336 | #endif |
80856e74 JB |
337 | #if 0 |
338 | /* Replaced by close_process_descs */ | |
339 | set_exclusive_use (fd[0]); | |
340 | #endif | |
341 | } | |
342 | ||
343 | { | |
344 | /* child_setup must clobber environ in systems with true vfork. | |
345 | Protect it from permanent change. */ | |
346 | register char **save_environ = environ; | |
347 | register int fd1 = fd[1]; | |
80856e74 JB |
348 | |
349 | #if 0 /* Some systems don't have sigblock. */ | |
e065a56e | 350 | mask = sigblock (sigmask (SIGCHLD)); |
80856e74 JB |
351 | #endif |
352 | ||
353 | /* Record that we're about to create a synchronous process. */ | |
354 | synch_process_alive = 1; | |
355 | ||
5c03767e RS |
356 | /* These vars record information from process termination. |
357 | Clear them now before process can possibly terminate, | |
358 | to avoid timing error if process terminates soon. */ | |
359 | synch_process_death = 0; | |
360 | synch_process_retcode = 0; | |
361 | ||
7e6c2178 | 362 | #ifdef MSDOS /* MW, July 1993 */ |
6b6e798b RS |
363 | /* ??? Someone who knows MSDOG needs to check whether this properly |
364 | closes all descriptors that it opens. */ | |
7e6c2178 RS |
365 | pid = run_msdos_command (new_argv, current_dir, filefd, outfilefd); |
366 | close (outfilefd); | |
367 | fd1 = -1; /* No harm in closing that one! */ | |
093650fe | 368 | fd[0] = open (tempfile, NILP (Vbinary_process_output) ? O_TEXT : O_BINARY); |
7e6c2178 RS |
369 | if (fd[0] < 0) |
370 | { | |
371 | unlink (tempfile); | |
6b6e798b | 372 | close (filefd); |
7e6c2178 RS |
373 | report_file_error ("Cannot re-open temporary file", Qnil); |
374 | } | |
375 | #else /* not MSDOS */ | |
bad95d8f RS |
376 | #ifdef WINDOWSNT |
377 | pid = child_setup (filefd, fd1, fd1, new_argv, 0, current_dir); | |
378 | #else /* not WINDOWSNT */ | |
80856e74 JB |
379 | pid = vfork (); |
380 | ||
381 | if (pid == 0) | |
382 | { | |
383 | if (fd[0] >= 0) | |
384 | close (fd[0]); | |
5a570e37 | 385 | #ifdef USG |
80856e74 JB |
386 | setpgrp (); |
387 | #else | |
388 | setpgrp (pid, pid); | |
389 | #endif /* USG */ | |
e576cab4 | 390 | child_setup (filefd, fd1, fd1, new_argv, 0, current_dir); |
80856e74 | 391 | } |
7e6c2178 | 392 | #endif /* not MSDOS */ |
bad95d8f | 393 | #endif /* not WINDOWSNT */ |
80856e74 | 394 | |
80856e74 JB |
395 | environ = save_environ; |
396 | ||
6b6e798b RS |
397 | /* Close most of our fd's, but not fd[0] |
398 | since we will use that to read input from. */ | |
80856e74 | 399 | close (filefd); |
7e6c2178 RS |
400 | if (fd1 >= 0) |
401 | close (fd1); | |
80856e74 JB |
402 | } |
403 | ||
404 | if (pid < 0) | |
405 | { | |
6b6e798b RS |
406 | if (fd[0] >= 0) |
407 | close (fd[0]); | |
80856e74 JB |
408 | report_file_error ("Doing vfork", Qnil); |
409 | } | |
410 | ||
d50d3dc8 | 411 | if (INTEGERP (buffer)) |
80856e74 | 412 | { |
6b6e798b RS |
413 | if (fd[0] >= 0) |
414 | close (fd[0]); | |
80856e74 | 415 | #ifndef subprocesses |
e576cab4 JB |
416 | /* If Emacs has been built with asynchronous subprocess support, |
417 | we don't need to do this, I think because it will then have | |
418 | the facilities for handling SIGCHLD. */ | |
80856e74 JB |
419 | wait_without_blocking (); |
420 | #endif /* subprocesses */ | |
80856e74 JB |
421 | return Qnil; |
422 | } | |
423 | ||
6b6e798b | 424 | /* Enable sending signal if user quits below. */ |
37d54121 RS |
425 | call_process_exited = 0; |
426 | ||
7e6c2178 RS |
427 | #ifdef MSDOS |
428 | /* MSDOS needs different cleanup information. */ | |
429 | record_unwind_protect (call_process_cleanup, | |
430 | Fcons (make_number (fd[0]), build_string (tempfile))); | |
431 | #else | |
80856e74 JB |
432 | record_unwind_protect (call_process_cleanup, |
433 | Fcons (make_number (fd[0]), make_number (pid))); | |
7e6c2178 | 434 | #endif /* not MSDOS */ |
80856e74 JB |
435 | |
436 | ||
d50d3dc8 | 437 | if (BUFFERP (buffer)) |
80856e74 JB |
438 | Fset_buffer (buffer); |
439 | ||
440 | immediate_quit = 1; | |
441 | QUIT; | |
442 | ||
443 | { | |
444 | register int nread; | |
0ad477db | 445 | int first = 1; |
80856e74 | 446 | |
00fb3e95 | 447 | while ((nread = read (fd[0], buf, sizeof buf)) != 0) |
80856e74 | 448 | { |
00fb3e95 RS |
449 | if (nread < 0) |
450 | { | |
451 | #if defined (__osf__) && defined (__alpha) | |
452 | continue; /* Work around bug in DEC OSF/1 V3.0. */ | |
453 | #else | |
454 | break; | |
455 | #endif | |
456 | } | |
80856e74 | 457 | immediate_quit = 0; |
012c6fcb | 458 | if (!NILP (buffer)) |
80856e74 | 459 | insert (buf, nread); |
012c6fcb | 460 | if (!NILP (display) && INTERACTIVE) |
0ad477db RS |
461 | { |
462 | if (first) | |
463 | prepare_menu_bars (); | |
464 | first = 0; | |
465 | redisplay_preserve_echo_area (); | |
466 | } | |
80856e74 JB |
467 | immediate_quit = 1; |
468 | QUIT; | |
469 | } | |
470 | } | |
471 | ||
472 | /* Wait for it to terminate, unless it already has. */ | |
473 | wait_for_termination (pid); | |
474 | ||
475 | immediate_quit = 0; | |
476 | ||
477 | set_buffer_internal (old); | |
478 | ||
37d54121 RS |
479 | /* Don't kill any children that the subprocess may have left behind |
480 | when exiting. */ | |
481 | call_process_exited = 1; | |
482 | ||
80856e74 JB |
483 | unbind_to (count, Qnil); |
484 | ||
80856e74 JB |
485 | if (synch_process_death) |
486 | return build_string (synch_process_death); | |
487 | return make_number (synch_process_retcode); | |
488 | } | |
489 | #endif | |
490 | \f | |
9fefd2ba | 491 | static Lisp_Object |
80856e74 JB |
492 | delete_temp_file (name) |
493 | Lisp_Object name; | |
494 | { | |
59750d69 RS |
495 | /* Use Fdelete_file because that runs a file name handler. |
496 | We did that when writing the file, so we should do so when deleting. */ | |
497 | Fdelete_file (name); | |
80856e74 JB |
498 | } |
499 | ||
500 | DEFUN ("call-process-region", Fcall_process_region, Scall_process_region, | |
501 | 3, MANY, 0, | |
502 | "Send text from START to END to a synchronous process running PROGRAM.\n\ | |
503 | Delete the text if fourth arg DELETE is non-nil.\n\ | |
504 | Insert output in BUFFER before point; t means current buffer;\n\ | |
505 | nil for BUFFER means discard it; 0 means discard and don't wait.\n\ | |
506 | Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted.\n\ | |
507 | Remaining args are passed to PROGRAM at startup as command args.\n\ | |
508 | If BUFFER is nil, returns immediately with value nil.\n\ | |
509 | Otherwise waits for PROGRAM to terminate\n\ | |
e576cab4 | 510 | and returns a numeric exit status or a signal description string.\n\ |
d177f194 | 511 | If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") |
80856e74 JB |
512 | (nargs, args) |
513 | int nargs; | |
514 | register Lisp_Object *args; | |
515 | { | |
39323a7e KH |
516 | struct gcpro gcpro1; |
517 | Lisp_Object filename_string; | |
518 | register Lisp_Object start, end; | |
bad95d8f | 519 | #ifdef DOS_NT |
7e6c2178 RS |
520 | char *tempfile; |
521 | #else | |
80856e74 | 522 | char tempfile[20]; |
7e6c2178 | 523 | #endif |
80856e74 | 524 | int count = specpdl_ptr - specpdl; |
bad95d8f | 525 | #ifdef DOS_NT |
7e6c2178 RS |
526 | char *outf = '\0'; |
527 | ||
528 | if ((outf = egetenv ("TMP")) || (outf = egetenv ("TEMP"))) | |
529 | strcpy (tempfile = alloca (strlen (outf) + 20), outf); | |
530 | else | |
531 | { | |
532 | tempfile = alloca (20); | |
533 | *tempfile = '\0'; | |
534 | } | |
535 | dostounix_filename (tempfile); | |
536 | if (tempfile[strlen (tempfile) - 1] != '/') | |
537 | strcat (tempfile, "/"); | |
538 | strcat (tempfile, "detmp.XXX"); | |
bad95d8f | 539 | #else /* not DOS_NT */ |
80856e74 JB |
540 | |
541 | #ifdef VMS | |
542 | strcpy (tempfile, "tmp:emacsXXXXXX."); | |
543 | #else | |
544 | strcpy (tempfile, "/tmp/emacsXXXXXX"); | |
545 | #endif | |
bad95d8f | 546 | #endif /* not DOS_NT */ |
7e6c2178 | 547 | |
80856e74 JB |
548 | mktemp (tempfile); |
549 | ||
550 | filename_string = build_string (tempfile); | |
39323a7e | 551 | GCPRO1 (filename_string); |
80856e74 JB |
552 | start = args[0]; |
553 | end = args[1]; | |
bad95d8f | 554 | #ifdef DOS_NT |
093650fe RS |
555 | specbind (Qbuffer_file_type, Vbinary_process_input); |
556 | Fwrite_region (start, end, filename_string, Qnil, Qlambda); | |
557 | unbind_to (count, Qnil); | |
bad95d8f | 558 | #else /* not DOS_NT */ |
80856e74 | 559 | Fwrite_region (start, end, filename_string, Qnil, Qlambda); |
bad95d8f | 560 | #endif /* not DOS_NT */ |
093650fe | 561 | |
80856e74 JB |
562 | record_unwind_protect (delete_temp_file, filename_string); |
563 | ||
012c6fcb | 564 | if (!NILP (args[3])) |
80856e74 JB |
565 | Fdelete_region (start, end); |
566 | ||
567 | args[3] = filename_string; | |
80856e74 | 568 | |
39323a7e | 569 | RETURN_UNGCPRO (unbind_to (count, Fcall_process (nargs - 2, args + 2))); |
80856e74 JB |
570 | } |
571 | \f | |
572 | #ifndef VMS /* VMS version is in vmsproc.c. */ | |
573 | ||
574 | /* This is the last thing run in a newly forked inferior | |
575 | either synchronous or asynchronous. | |
576 | Copy descriptors IN, OUT and ERR as descriptors 0, 1 and 2. | |
577 | Initialize inferior's priority, pgrp, connected dir and environment. | |
578 | then exec another program based on new_argv. | |
579 | ||
580 | This function may change environ for the superior process. | |
581 | Therefore, the superior process must save and restore the value | |
582 | of environ around the vfork and the call to this function. | |
583 | ||
584 | ENV is the environment for the subprocess. | |
585 | ||
586 | SET_PGRP is nonzero if we should put the subprocess into a separate | |
e576cab4 JB |
587 | process group. |
588 | ||
589 | CURRENT_DIR is an elisp string giving the path of the current | |
590 | directory the subprocess should have. Since we can't really signal | |
591 | a decent error from within the child, this should be verified as an | |
592 | executable directory by the parent. */ | |
80856e74 | 593 | |
e576cab4 | 594 | child_setup (in, out, err, new_argv, set_pgrp, current_dir) |
80856e74 JB |
595 | int in, out, err; |
596 | register char **new_argv; | |
80856e74 | 597 | int set_pgrp; |
e576cab4 | 598 | Lisp_Object current_dir; |
80856e74 | 599 | { |
7e6c2178 RS |
600 | #ifdef MSDOS |
601 | /* The MSDOS port of gcc cannot fork, vfork, ... so we must call system | |
602 | instead. */ | |
603 | #else /* not MSDOS */ | |
e576cab4 | 604 | char **env; |
7fcf7f05 | 605 | char *pwd_var; |
bad95d8f RS |
606 | #ifdef WINDOWSNT |
607 | int cpid; | |
608 | HANDLE handles[4]; | |
609 | #endif /* WINDOWSNT */ | |
e576cab4 | 610 | |
33abe2d9 | 611 | int pid = getpid (); |
80856e74 | 612 | |
68d10241 | 613 | #ifdef SET_EMACS_PRIORITY |
4f0b9d49 JB |
614 | { |
615 | extern int emacs_priority; | |
616 | ||
68d10241 RS |
617 | if (emacs_priority < 0) |
618 | nice (- emacs_priority); | |
4f0b9d49 | 619 | } |
5b633aeb | 620 | #endif |
80856e74 JB |
621 | |
622 | #ifdef subprocesses | |
623 | /* Close Emacs's descriptors that this process should not have. */ | |
624 | close_process_descs (); | |
625 | #endif | |
4458cebe | 626 | close_load_descs (); |
80856e74 JB |
627 | |
628 | /* Note that use of alloca is always safe here. It's obvious for systems | |
629 | that do not have true vfork or that have true (stack) alloca. | |
630 | If using vfork and C_ALLOCA it is safe because that changes | |
631 | the superior's static variables as if the superior had done alloca | |
632 | and will be cleaned up in the usual way. */ | |
e576cab4 | 633 | { |
7fcf7f05 | 634 | register char *temp; |
e576cab4 | 635 | register int i; |
77d78be1 | 636 | |
e576cab4 | 637 | i = XSTRING (current_dir)->size; |
7fcf7f05 RS |
638 | pwd_var = (char *) alloca (i + 6); |
639 | temp = pwd_var + 4; | |
640 | bcopy ("PWD=", pwd_var, 4); | |
e576cab4 | 641 | bcopy (XSTRING (current_dir)->data, temp, i); |
bad95d8f | 642 | if (!IS_DIRECTORY_SEP (temp[i - 1])) temp[i++] = DIRECTORY_SEP; |
e576cab4 JB |
643 | temp[i] = 0; |
644 | ||
645 | /* We can't signal an Elisp error here; we're in a vfork. Since | |
646 | the callers check the current directory before forking, this | |
647 | should only return an error if the directory's permissions | |
648 | are changed between the check and this chdir, but we should | |
649 | at least check. */ | |
650 | if (chdir (temp) < 0) | |
20b25e46 | 651 | _exit (errno); |
7fcf7f05 RS |
652 | |
653 | /* Strip trailing slashes for PWD, but leave "/" and "//" alone. */ | |
bad95d8f | 654 | while (i > 2 && IS_DIRECTORY_SEP (temp[i - 1])) |
7fcf7f05 | 655 | temp[--i] = 0; |
e576cab4 | 656 | } |
80856e74 | 657 | |
80856e74 JB |
658 | /* Set `env' to a vector of the strings in Vprocess_environment. */ |
659 | { | |
660 | register Lisp_Object tem; | |
661 | register char **new_env; | |
662 | register int new_length; | |
663 | ||
664 | new_length = 0; | |
665 | for (tem = Vprocess_environment; | |
d50d3dc8 | 666 | CONSP (tem) && STRINGP (XCONS (tem)->car); |
80856e74 JB |
667 | tem = XCONS (tem)->cdr) |
668 | new_length++; | |
669 | ||
7fcf7f05 RS |
670 | /* new_length + 2 to include PWD and terminating 0. */ |
671 | env = new_env = (char **) alloca ((new_length + 2) * sizeof (char *)); | |
672 | ||
673 | /* If we have a PWD envvar, pass one down, | |
674 | but with corrected value. */ | |
675 | if (getenv ("PWD")) | |
676 | *new_env++ = pwd_var; | |
80856e74 | 677 | |
cd9565ba | 678 | /* Copy the Vprocess_environment strings into new_env. */ |
80856e74 | 679 | for (tem = Vprocess_environment; |
d50d3dc8 | 680 | CONSP (tem) && STRINGP (XCONS (tem)->car); |
80856e74 | 681 | tem = XCONS (tem)->cdr) |
cd9565ba RS |
682 | { |
683 | char **ep = env; | |
684 | char *string = (char *) XSTRING (XCONS (tem)->car)->data; | |
685 | /* See if this string duplicates any string already in the env. | |
686 | If so, don't put it in. | |
687 | When an env var has multiple definitions, | |
688 | we keep the definition that comes first in process-environment. */ | |
689 | for (; ep != new_env; ep++) | |
690 | { | |
691 | char *p = *ep, *q = string; | |
692 | while (1) | |
693 | { | |
694 | if (*q == 0) | |
695 | /* The string is malformed; might as well drop it. */ | |
696 | goto duplicate; | |
697 | if (*q != *p) | |
698 | break; | |
699 | if (*q == '=') | |
700 | goto duplicate; | |
701 | p++, q++; | |
702 | } | |
703 | } | |
704 | *new_env++ = string; | |
705 | duplicate: ; | |
706 | } | |
80856e74 JB |
707 | *new_env = 0; |
708 | } | |
bad95d8f RS |
709 | #ifdef WINDOWSNT |
710 | prepare_standard_handles (in, out, err, handles); | |
711 | #else /* not WINDOWSNT */ | |
426b37ae JB |
712 | /* Make sure that in, out, and err are not actually already in |
713 | descriptors zero, one, or two; this could happen if Emacs is | |
7e6c2178 | 714 | started with its standard in, out, or error closed, as might |
426b37ae JB |
715 | happen under X. */ |
716 | in = relocate_fd (in, 3); | |
3e9367e7 KH |
717 | if (out == err) |
718 | err = out = relocate_fd (out, 3); | |
719 | else | |
720 | { | |
721 | out = relocate_fd (out, 3); | |
722 | err = relocate_fd (err, 3); | |
723 | } | |
426b37ae | 724 | |
80856e74 JB |
725 | close (0); |
726 | close (1); | |
727 | close (2); | |
728 | ||
729 | dup2 (in, 0); | |
730 | dup2 (out, 1); | |
731 | dup2 (err, 2); | |
732 | close (in); | |
733 | close (out); | |
734 | close (err); | |
bad95d8f | 735 | #endif /* not WINDOWSNT */ |
80856e74 | 736 | |
fdba8590 RS |
737 | #ifdef USG |
738 | #ifndef SETPGRP_RELEASES_CTTY | |
e576cab4 | 739 | setpgrp (); /* No arguments but equivalent in this case */ |
fdba8590 | 740 | #endif |
e576cab4 JB |
741 | #else |
742 | setpgrp (pid, pid); | |
743 | #endif /* USG */ | |
a129418f RS |
744 | /* setpgrp_of_tty is incorrect here; it uses input_fd. */ |
745 | EMACS_SET_TTY_PGRP (0, &pid); | |
80856e74 JB |
746 | |
747 | #ifdef vipc | |
748 | something missing here; | |
749 | #endif /* vipc */ | |
750 | ||
bad95d8f RS |
751 | #ifdef WINDOWSNT |
752 | /* Spawn the child. (See ntproc.c:Spawnve). */ | |
753 | cpid = spawnve (_P_NOWAIT, new_argv[0], new_argv, env); | |
754 | if (cpid == -1) { ???? | |
755 | report_file_error ("Spawning child process", Qnil); | |
756 | } | |
757 | reset_standard_handles (in, out, err, handles); | |
758 | return cpid; | |
759 | #else /* not WINDOWSNT */ | |
80856e74 JB |
760 | /* execvp does not accept an environment arg so the only way |
761 | to pass this environment is to set environ. Our caller | |
762 | is responsible for restoring the ambient value of environ. */ | |
763 | environ = env; | |
764 | execvp (new_argv[0], new_argv); | |
765 | ||
766 | write (1, "Couldn't exec the program ", 26); | |
767 | write (1, new_argv[0], strlen (new_argv[0])); | |
768 | _exit (1); | |
bad95d8f | 769 | #endif /* not WINDOWSNT */ |
7e6c2178 | 770 | #endif /* not MSDOS */ |
80856e74 JB |
771 | } |
772 | ||
426b37ae JB |
773 | /* Move the file descriptor FD so that its number is not less than MIN. |
774 | If the file descriptor is moved at all, the original is freed. */ | |
775 | int | |
776 | relocate_fd (fd, min) | |
777 | int fd, min; | |
778 | { | |
779 | if (fd >= min) | |
780 | return fd; | |
781 | else | |
782 | { | |
783 | int new = dup (fd); | |
784 | if (new == -1) | |
785 | { | |
20c018a0 | 786 | char *message1 = "Error while setting up child: "; |
826c56ac | 787 | char *errmessage = strerror (errno); |
20c018a0 JB |
788 | char *message2 = "\n"; |
789 | write (2, message1, strlen (message1)); | |
826c56ac | 790 | write (2, errmessage, strlen (errmessage)); |
20c018a0 | 791 | write (2, message2, strlen (message2)); |
426b37ae JB |
792 | _exit (1); |
793 | } | |
794 | /* Note that we hold the original FD open while we recurse, | |
795 | to guarantee we'll get a new FD if we need it. */ | |
796 | new = relocate_fd (new, min); | |
797 | close (fd); | |
798 | return new; | |
799 | } | |
800 | } | |
801 | ||
012c6fcb JA |
802 | static int |
803 | getenv_internal (var, varlen, value, valuelen) | |
804 | char *var; | |
805 | int varlen; | |
806 | char **value; | |
807 | int *valuelen; | |
808 | { | |
809 | Lisp_Object scan; | |
810 | ||
811 | for (scan = Vprocess_environment; CONSP (scan); scan = XCONS (scan)->cdr) | |
812 | { | |
c1350752 KH |
813 | Lisp_Object entry; |
814 | ||
815 | entry = XCONS (scan)->car; | |
d50d3dc8 | 816 | if (STRINGP (entry) |
012c6fcb JA |
817 | && XSTRING (entry)->size > varlen |
818 | && XSTRING (entry)->data[varlen] == '=' | |
bad95d8f RS |
819 | #ifdef WINDOWSNT |
820 | /* NT environment variables are case insensitive. */ | |
821 | && ! strnicmp (XSTRING (entry)->data, var, varlen)) | |
822 | #else /* not WINDOWSNT */ | |
012c6fcb | 823 | && ! bcmp (XSTRING (entry)->data, var, varlen)) |
bad95d8f | 824 | #endif /* not WINDOWSNT */ |
012c6fcb JA |
825 | { |
826 | *value = (char *) XSTRING (entry)->data + (varlen + 1); | |
827 | *valuelen = XSTRING (entry)->size - (varlen + 1); | |
828 | return 1; | |
829 | } | |
830 | } | |
831 | ||
832 | return 0; | |
833 | } | |
834 | ||
0ad477db | 835 | DEFUN ("getenv", Fgetenv, Sgetenv, 1, 1, 0, |
012c6fcb JA |
836 | "Return the value of environment variable VAR, as a string.\n\ |
837 | VAR should be a string. Value is nil if VAR is undefined in the environment.\n\ | |
838 | This function consults the variable ``process-environment'' for its value.") | |
839 | (var) | |
840 | Lisp_Object var; | |
841 | { | |
842 | char *value; | |
843 | int valuelen; | |
844 | ||
845 | CHECK_STRING (var, 0); | |
846 | if (getenv_internal (XSTRING (var)->data, XSTRING (var)->size, | |
847 | &value, &valuelen)) | |
848 | return make_string (value, valuelen); | |
849 | else | |
850 | return Qnil; | |
851 | } | |
852 | ||
853 | /* A version of getenv that consults process_environment, easily | |
e576cab4 | 854 | callable from C. */ |
012c6fcb JA |
855 | char * |
856 | egetenv (var) | |
e576cab4 | 857 | char *var; |
012c6fcb JA |
858 | { |
859 | char *value; | |
860 | int valuelen; | |
861 | ||
862 | if (getenv_internal (var, strlen (var), &value, &valuelen)) | |
863 | return value; | |
864 | else | |
865 | return 0; | |
866 | } | |
867 | ||
80856e74 JB |
868 | #endif /* not VMS */ |
869 | \f | |
8de15d69 | 870 | /* This is run before init_cmdargs. */ |
7e6c2178 | 871 | |
8de15d69 RS |
872 | init_callproc_1 () |
873 | { | |
874 | char *data_dir = egetenv ("EMACSDATA"); | |
35a2f4b8 KH |
875 | char *doc_dir = egetenv ("EMACSDOC"); |
876 | ||
8de15d69 | 877 | Vdata_directory |
7e6c2178 | 878 | = Ffile_name_as_directory (build_string (data_dir ? data_dir |
8de15d69 | 879 | : PATH_DATA)); |
35a2f4b8 KH |
880 | Vdoc_directory |
881 | = Ffile_name_as_directory (build_string (doc_dir ? doc_dir | |
882 | : PATH_DOC)); | |
9453ea7b | 883 | |
e576cab4 JB |
884 | /* Check the EMACSPATH environment variable, defaulting to the |
885 | PATH_EXEC path from paths.h. */ | |
886 | Vexec_path = decode_env_path ("EMACSPATH", PATH_EXEC); | |
80856e74 JB |
887 | Vexec_directory = Ffile_name_as_directory (Fcar (Vexec_path)); |
888 | Vexec_path = nconc2 (decode_env_path ("PATH", ""), Vexec_path); | |
8de15d69 RS |
889 | } |
890 | ||
891 | /* This is run after init_cmdargs, so that Vinvocation_directory is valid. */ | |
892 | ||
893 | init_callproc () | |
894 | { | |
895 | char *data_dir = egetenv ("EMACSDATA"); | |
896 | ||
897 | register char * sh; | |
898 | Lisp_Object tempdir; | |
899 | ||
05630743 | 900 | if (initialized && !NILP (Vinstallation_directory)) |
8de15d69 | 901 | { |
05630743 RS |
902 | /* Add to the path the lib-src subdir of the installation dir. */ |
903 | Lisp_Object tem; | |
904 | tem = Fexpand_file_name (build_string ("lib-src"), | |
905 | Vinstallation_directory); | |
906 | if (NILP (Fmember (tem, Vexec_path))) | |
8de15d69 | 907 | { |
bad95d8f | 908 | #ifndef DOS_NT |
1a6640ec | 909 | /* MSDOS uses wrapped binaries, so don't do this. */ |
8de15d69 RS |
910 | Vexec_path = nconc2 (Vexec_path, Fcons (tem, Qnil)); |
911 | Vexec_directory = Ffile_name_as_directory (tem); | |
bad95d8f | 912 | #endif /* not DOS_NT */ |
8de15d69 RS |
913 | |
914 | /* If we use ../lib-src, maybe use ../etc as well. | |
915 | Do so if ../etc exists and has our DOC-... file in it. */ | |
916 | if (data_dir == 0) | |
917 | { | |
05630743 RS |
918 | tem = Fexpand_file_name (build_string ("etc"), |
919 | Vinstallation_directory); | |
7e933683 | 920 | Vdoc_directory = Ffile_name_as_directory (tem); |
8de15d69 RS |
921 | } |
922 | } | |
923 | } | |
7e933683 RS |
924 | |
925 | /* Look for the files that should be in etc. We don't use | |
926 | Vinstallation_directory, because these files are never installed | |
927 | in /bin near the executable, and they are never in the build | |
928 | directory when that's different from the source directory. | |
929 | ||
930 | Instead, if these files are not in the nominal place, we try the | |
931 | source directory. */ | |
932 | if (data_dir == 0) | |
933 | { | |
934 | Lisp_Object tem, tem1, newdir; | |
935 | ||
936 | tem = Fexpand_file_name (build_string ("GNU"), Vdata_directory); | |
937 | tem1 = Ffile_exists_p (tem); | |
938 | if (NILP (tem1)) | |
939 | { | |
940 | newdir = Fexpand_file_name (build_string ("../etc/"), | |
941 | build_string (PATH_DUMPLOADSEARCH)); | |
942 | tem = Fexpand_file_name (build_string ("GNU"), newdir); | |
943 | tem1 = Ffile_exists_p (tem); | |
944 | if (!NILP (tem1)) | |
945 | Vdata_directory = newdir; | |
946 | } | |
947 | } | |
80856e74 | 948 | |
e576cab4 JB |
949 | tempdir = Fdirectory_file_name (Vexec_directory); |
950 | if (access (XSTRING (tempdir)->data, 0) < 0) | |
80856e74 | 951 | { |
0af6a831 RS |
952 | fprintf (stderr, |
953 | "Warning: arch-dependent data dir (%s) does not exist.\n", | |
954 | XSTRING (Vexec_directory)->data); | |
80856e74 JB |
955 | sleep (2); |
956 | } | |
957 | ||
e576cab4 JB |
958 | tempdir = Fdirectory_file_name (Vdata_directory); |
959 | if (access (XSTRING (tempdir)->data, 0) < 0) | |
960 | { | |
0af6a831 RS |
961 | fprintf (stderr, |
962 | "Warning: arch-independent data dir (%s) does not exist.\n", | |
963 | XSTRING (Vdata_directory)->data); | |
e576cab4 JB |
964 | sleep (2); |
965 | } | |
966 | ||
80856e74 JB |
967 | #ifdef VMS |
968 | Vshell_file_name = build_string ("*dcl*"); | |
969 | #else | |
e576cab4 | 970 | sh = (char *) getenv ("SHELL"); |
80856e74 JB |
971 | Vshell_file_name = build_string (sh ? sh : "/bin/sh"); |
972 | #endif | |
9fefd2ba JB |
973 | } |
974 | ||
975 | set_process_environment () | |
976 | { | |
977 | register char **envp; | |
80856e74 | 978 | |
80856e74 JB |
979 | Vprocess_environment = Qnil; |
980 | #ifndef CANNOT_DUMP | |
981 | if (initialized) | |
982 | #endif | |
983 | for (envp = environ; *envp; envp++) | |
984 | Vprocess_environment = Fcons (build_string (*envp), | |
985 | Vprocess_environment); | |
80856e74 JB |
986 | } |
987 | ||
988 | syms_of_callproc () | |
989 | { | |
bad95d8f | 990 | #ifdef DOS_NT |
093650fe RS |
991 | Qbuffer_file_type = intern ("buffer-file-type"); |
992 | staticpro (&Qbuffer_file_type); | |
993 | ||
994 | DEFVAR_LISP ("binary-process-input", &Vbinary_process_input, | |
995 | "*If non-nil then new subprocesses are assumed to take binary input."); | |
996 | Vbinary_process_input = Qnil; | |
997 | ||
998 | DEFVAR_LISP ("binary-process-output", &Vbinary_process_output, | |
7e6c2178 | 999 | "*If non-nil then new subprocesses are assumed to produce binary output."); |
093650fe | 1000 | Vbinary_process_output = Qnil; |
bad95d8f | 1001 | #endif /* DOS_NT */ |
7e6c2178 | 1002 | |
80856e74 JB |
1003 | DEFVAR_LISP ("shell-file-name", &Vshell_file_name, |
1004 | "*File name to load inferior shells from.\n\ | |
1005 | Initialized from the SHELL environment variable."); | |
1006 | ||
1007 | DEFVAR_LISP ("exec-path", &Vexec_path, | |
1008 | "*List of directories to search programs to run in subprocesses.\n\ | |
1009 | Each element is a string (directory name) or nil (try default directory)."); | |
1010 | ||
1011 | DEFVAR_LISP ("exec-directory", &Vexec_directory, | |
e576cab4 JB |
1012 | "Directory of architecture-dependent files that come with GNU Emacs,\n\ |
1013 | especially executable programs intended for Emacs to invoke."); | |
1014 | ||
1015 | DEFVAR_LISP ("data-directory", &Vdata_directory, | |
1016 | "Directory of architecture-independent files that come with GNU Emacs,\n\ | |
1017 | intended for Emacs to use."); | |
80856e74 | 1018 | |
35a2f4b8 KH |
1019 | DEFVAR_LISP ("doc-directory", &Vdoc_directory, |
1020 | "Directory containing the DOC file that comes with GNU Emacs.\n\ | |
1021 | This is usually the same as data-directory."); | |
1022 | ||
ed61592a JB |
1023 | DEFVAR_LISP ("configure-info-directory", &Vconfigure_info_directory, |
1024 | "For internal use by the build procedure only.\n\ | |
1025 | This is the name of the directory in which the build procedure installed\n\ | |
1026 | Emacs's info files; the default value for Info-default-directory-list\n\ | |
1027 | includes this."); | |
1028 | Vconfigure_info_directory = build_string (PATH_INFO); | |
1029 | ||
80856e74 | 1030 | DEFVAR_LISP ("process-environment", &Vprocess_environment, |
e576cab4 JB |
1031 | "List of environment variables for subprocesses to inherit.\n\ |
1032 | Each element should be a string of the form ENVVARNAME=VALUE.\n\ | |
1033 | The environment which Emacs inherits is placed in this variable\n\ | |
1034 | when Emacs starts."); | |
80856e74 JB |
1035 | |
1036 | #ifndef VMS | |
1037 | defsubr (&Scall_process); | |
012c6fcb | 1038 | defsubr (&Sgetenv); |
986ffb24 | 1039 | #endif |
e576cab4 | 1040 | defsubr (&Scall_process_region); |
80856e74 | 1041 | } |