1 /* Synchronous subprocess invocation for GNU Emacs.
2 Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
32 /* Define SIGCHLD as an alias for SIGCLD. */
34 #if !defined (SIGCHLD) && defined (SIGCLD)
35 #define SIGCHLD SIGCLD
38 #include <sys/types.h>
46 #define INCLUDED_FCNTL
53 #include <stdlib.h> /* for proper declaration of environ */
56 #define _P_NOWAIT 1 /* from process.h */
59 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
60 #define INCLUDED_FCNTL
63 #include <sys/param.h>
78 #include "character.h"
81 #include "composite.h"
84 #include "syssignal.h"
86 #include "blockinput.h"
88 #include "termhooks.h"
95 extern noshare
char **environ
;
98 extern char **environ
;
103 #if !defined (USG) || defined (BSD_PGRPS)
105 #define setpgrp setpgid
109 Lisp_Object Vexec_path
, Vexec_directory
, Vexec_suffixes
;
110 Lisp_Object Vdata_directory
, Vdoc_directory
;
111 Lisp_Object Vconfigure_info_directory
, Vshared_game_score_directory
;
112 Lisp_Object Vtemp_file_name_pattern
;
114 Lisp_Object Vshell_file_name
;
116 Lisp_Object Vprocess_environment
, Vinitial_environment
;
119 Lisp_Object Qbuffer_file_type
;
122 /* True if we are about to fork off a synchronous process or if we
123 are waiting for it. */
124 int synch_process_alive
;
126 /* Nonzero => this is a string explaining death of synchronous subprocess. */
127 char *synch_process_death
;
129 /* Nonzero => this is the signal number that terminated the subprocess. */
130 int synch_process_termsig
;
132 /* If synch_process_death is zero,
133 this is exit code of synchronous subprocess. */
134 int synch_process_retcode
;
137 /* Clean up when exiting Fcall_process.
138 On MSDOS, delete the temporary file on any kind of termination.
139 On Unix, kill the process and any children on termination by signal. */
141 /* Nonzero if this is termination due to exit. */
142 static int call_process_exited
;
144 EXFUN (Fgetenv_internal
, 2);
146 #ifndef VMS /* VMS version is in vmsproc.c. */
149 call_process_kill (fdpid
)
152 emacs_close (XFASTINT (Fcar (fdpid
)));
153 EMACS_KILLPG (XFASTINT (Fcdr (fdpid
)), SIGKILL
);
154 synch_process_alive
= 0;
159 call_process_cleanup (fdpid
)
162 #if defined (MSDOS) || defined (MAC_OS8)
163 /* for MSDOS fdpid is really (fd . tempfile) */
164 register Lisp_Object file
;
166 emacs_close (XFASTINT (Fcar (fdpid
)));
167 if (strcmp (SDATA (file
), NULL_DEVICE
) != 0)
168 unlink (SDATA (file
));
169 #else /* not MSDOS and not MAC_OS8 */
170 register int pid
= XFASTINT (Fcdr (fdpid
));
172 if (call_process_exited
)
174 emacs_close (XFASTINT (Fcar (fdpid
)));
178 if (EMACS_KILLPG (pid
, SIGINT
) == 0)
180 int count
= SPECPDL_INDEX ();
181 record_unwind_protect (call_process_kill
, fdpid
);
182 message1 ("Waiting for process to die...(type C-g again to kill it instantly)");
185 wait_for_termination (pid
);
187 specpdl_ptr
= specpdl
+ count
; /* Discard the unwind protect. */
188 message1 ("Waiting for process to die...done");
190 synch_process_alive
= 0;
191 emacs_close (XFASTINT (Fcar (fdpid
)));
192 #endif /* not MSDOS */
196 DEFUN ("call-process", Fcall_process
, Scall_process
, 1, MANY
, 0,
197 doc
: /* Call PROGRAM synchronously in separate process.
198 The remaining arguments are optional.
199 The program's input comes from file INFILE (nil means `/dev/null').
200 Insert output in BUFFER before point; t means current buffer;
201 nil for BUFFER means discard it; 0 means discard and don't wait.
202 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
203 REAL-BUFFER says what to do with standard output, as above,
204 while STDERR-FILE says what to do with standard error in the child.
205 STDERR-FILE may be nil (discard standard error output),
206 t (mix it with ordinary output), or a file name string.
208 Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.
209 Remaining arguments are strings passed as command arguments to PROGRAM.
211 If executable PROGRAM can't be found as an executable, `call-process'
212 signals a Lisp error. `call-process' reports errors in execution of
213 the program only through its return and output.
215 If BUFFER is 0, `call-process' returns immediately with value nil.
216 Otherwise it waits for PROGRAM to terminate
217 and returns a numeric exit status or a signal description string.
218 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
220 usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS) */)
223 register Lisp_Object
*args
;
225 Lisp_Object infile
, buffer
, current_dir
, path
;
230 #define CALLPROC_BUFFER_SIZE_MIN (16 * 1024)
231 #define CALLPROC_BUFFER_SIZE_MAX (4 * CALLPROC_BUFFER_SIZE_MIN)
232 char buf
[CALLPROC_BUFFER_SIZE_MAX
];
233 int bufsize
= CALLPROC_BUFFER_SIZE_MIN
;
234 int count
= SPECPDL_INDEX ();
236 register const unsigned char **new_argv
237 = (const unsigned char **) alloca ((max (2, nargs
- 2)) * sizeof (char *));
238 struct buffer
*old
= current_buffer
;
239 /* File to use for stderr in the child.
240 t means use same as standard output. */
241 Lisp_Object error_file
;
242 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
243 char *outf
, *tempfile
;
253 struct coding_system process_coding
; /* coding-system of process output */
254 struct coding_system argument_coding
; /* coding-system of arguments */
255 /* Set to the return value of Ffind_operation_coding_system. */
256 Lisp_Object coding_systems
;
258 /* Qt denotes that Ffind_operation_coding_system is not yet called. */
261 CHECK_STRING (args
[0]);
266 /* Without asynchronous processes we cannot have BUFFER == 0. */
268 && (INTEGERP (CONSP (args
[2]) ? XCAR (args
[2]) : args
[2])))
269 error ("Operating system cannot handle asynchronous subprocesses");
270 #endif /* subprocesses */
272 /* Decide the coding-system for giving arguments. */
274 Lisp_Object val
, *args2
;
277 /* If arguments are supplied, we may have to encode them. */
281 Lisp_Object coding_attrs
;
283 for (i
= 4; i
< nargs
; i
++)
284 CHECK_STRING (args
[i
]);
286 for (i
= 4; i
< nargs
; i
++)
287 if (STRING_MULTIBYTE (args
[i
]))
290 if (!NILP (Vcoding_system_for_write
))
291 val
= Vcoding_system_for_write
;
292 else if (! must_encode
)
296 args2
= (Lisp_Object
*) alloca ((nargs
+ 1) * sizeof *args2
);
297 args2
[0] = Qcall_process
;
298 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
299 coding_systems
= Ffind_operation_coding_system (nargs
+ 1, args2
);
300 if (CONSP (coding_systems
))
301 val
= XCDR (coding_systems
);
302 else if (CONSP (Vdefault_process_coding_system
))
303 val
= XCDR (Vdefault_process_coding_system
);
307 val
= coding_inherit_eol_type (val
, Qnil
);
308 setup_coding_system (Fcheck_coding_system (val
), &argument_coding
);
309 coding_attrs
= CODING_ID_ATTRS (argument_coding
.id
);
310 if (NILP (CODING_ATTR_ASCII_COMPAT (coding_attrs
)))
312 /* We should not use an ASCII incompatible coding system. */
313 val
= raw_text_coding_system (val
);
314 setup_coding_system (val
, &argument_coding
);
319 if (nargs
>= 2 && ! NILP (args
[1]))
321 infile
= Fexpand_file_name (args
[1], current_buffer
->directory
);
322 CHECK_STRING (infile
);
325 infile
= build_string (NULL_DEVICE
);
331 /* If BUFFER is a list, its meaning is
332 (BUFFER-FOR-STDOUT FILE-FOR-STDERR). */
335 if (CONSP (XCDR (buffer
)))
337 Lisp_Object stderr_file
;
338 stderr_file
= XCAR (XCDR (buffer
));
340 if (NILP (stderr_file
) || EQ (Qt
, stderr_file
))
341 error_file
= stderr_file
;
343 error_file
= Fexpand_file_name (stderr_file
, Qnil
);
346 buffer
= XCAR (buffer
);
349 if (!(EQ (buffer
, Qnil
)
351 || INTEGERP (buffer
)))
353 Lisp_Object spec_buffer
;
354 spec_buffer
= buffer
;
355 buffer
= Fget_buffer_create (buffer
);
356 /* Mention the buffer name for a better error message. */
358 CHECK_BUFFER (spec_buffer
);
359 CHECK_BUFFER (buffer
);
365 /* Make sure that the child will be able to chdir to the current
366 buffer's current directory, or its unhandled equivalent. We
367 can't just have the child check for an error when it does the
368 chdir, since it's in a vfork.
370 We have to GCPRO around this because Fexpand_file_name,
371 Funhandled_file_name_directory, and Ffile_accessible_directory_p
372 might call a file name handling function. The argument list is
373 protected by the caller, so all we really have to worry about is
376 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
378 current_dir
= current_buffer
->directory
;
380 GCPRO4 (infile
, buffer
, current_dir
, error_file
);
383 = expand_and_dir_to_file (Funhandled_file_name_directory (current_dir
),
385 if (NILP (Ffile_accessible_directory_p (current_dir
)))
386 report_file_error ("Setting current directory",
387 Fcons (current_buffer
->directory
, Qnil
));
389 if (STRING_MULTIBYTE (infile
))
390 infile
= ENCODE_FILE (infile
);
391 if (STRING_MULTIBYTE (current_dir
))
392 current_dir
= ENCODE_FILE (current_dir
);
393 if (STRINGP (error_file
) && STRING_MULTIBYTE (error_file
))
394 error_file
= ENCODE_FILE (error_file
);
398 display_p
= INTERACTIVE
&& nargs
>= 4 && !NILP (args
[3]);
400 filefd
= emacs_open (SDATA (infile
), O_RDONLY
, 0);
403 infile
= DECODE_FILE (infile
);
404 report_file_error ("Opening process input file", Fcons (infile
, Qnil
));
406 /* Search for program; barf if not found. */
410 GCPRO1 (current_dir
);
411 openp (Vexec_path
, args
[0], Vexec_suffixes
, &path
, make_number (X_OK
));
416 emacs_close (filefd
);
417 report_file_error ("Searching for program", Fcons (args
[0], Qnil
));
420 /* If program file name starts with /: for quoting a magic name,
422 if (SBYTES (path
) > 2 && SREF (path
, 0) == '/'
423 && SREF (path
, 1) == ':')
424 path
= Fsubstring (path
, make_number (2), Qnil
);
426 new_argv
[0] = SDATA (path
);
430 struct gcpro gcpro1
, gcpro2
, gcpro3
;
432 GCPRO3 (infile
, buffer
, current_dir
);
433 argument_coding
.dst_multibyte
= 0;
434 for (i
= 4; i
< nargs
; i
++)
436 argument_coding
.src_multibyte
= STRING_MULTIBYTE (args
[i
]);
437 if (CODING_REQUIRE_ENCODING (&argument_coding
))
438 /* We must encode this argument. */
439 args
[i
] = encode_coding_string (&argument_coding
, args
[i
], 1);
440 new_argv
[i
- 3] = SDATA (args
[i
]);
443 new_argv
[nargs
- 3] = 0;
448 #ifdef MSDOS /* MW, July 1993 */
449 if ((outf
= egetenv ("TMPDIR")))
450 strcpy (tempfile
= alloca (strlen (outf
) + 20), outf
);
453 tempfile
= alloca (20);
456 dostounix_filename (tempfile
);
457 if (*tempfile
== '\0' || tempfile
[strlen (tempfile
) - 1] != '/')
458 strcat (tempfile
, "/");
459 strcat (tempfile
, "detmp.XXX");
462 outfilefd
= creat (tempfile
, S_IREAD
| S_IWRITE
);
465 emacs_close (filefd
);
466 report_file_error ("Opening process output file",
467 Fcons (build_string (tempfile
), Qnil
));
474 /* Since we don't have pipes on the Mac, create a temporary file to
475 hold the output of the subprocess. */
476 tempfile
= (char *) alloca (SBYTES (Vtemp_file_name_pattern
) + 1);
477 bcopy (SDATA (Vtemp_file_name_pattern
), tempfile
,
478 SBYTES (Vtemp_file_name_pattern
) + 1);
482 outfilefd
= creat (tempfile
, S_IREAD
| S_IWRITE
);
486 report_file_error ("Opening process output file",
487 Fcons (build_string (tempfile
), Qnil
));
493 if (INTEGERP (buffer
))
494 fd
[1] = emacs_open (NULL_DEVICE
, O_WRONLY
, 0), fd
[0] = -1;
502 emacs_close (filefd
);
503 report_file_error ("Creating process pipe", Qnil
);
508 /* Replaced by close_process_descs */
509 set_exclusive_use (fd
[0]);
514 /* child_setup must clobber environ in systems with true vfork.
515 Protect it from permanent change. */
516 register char **save_environ
= environ
;
517 register int fd1
= fd
[1];
520 #if 0 /* Some systems don't have sigblock. */
521 mask
= sigblock (sigmask (SIGCHLD
));
524 /* Record that we're about to create a synchronous process. */
525 synch_process_alive
= 1;
527 /* These vars record information from process termination.
528 Clear them now before process can possibly terminate,
529 to avoid timing error if process terminates soon. */
530 synch_process_death
= 0;
531 synch_process_retcode
= 0;
532 synch_process_termsig
= 0;
534 if (NILP (error_file
))
535 fd_error
= emacs_open (NULL_DEVICE
, O_WRONLY
, 0);
536 else if (STRINGP (error_file
))
539 fd_error
= emacs_open (SDATA (error_file
),
540 O_WRONLY
| O_TRUNC
| O_CREAT
| O_TEXT
,
542 #else /* not DOS_NT */
543 fd_error
= creat (SDATA (error_file
), 0666);
544 #endif /* not DOS_NT */
549 emacs_close (filefd
);
557 if (NILP (error_file
))
558 error_file
= build_string (NULL_DEVICE
);
559 else if (STRINGP (error_file
))
560 error_file
= DECODE_FILE (error_file
);
561 report_file_error ("Cannot redirect stderr", Fcons (error_file
, Qnil
));
566 /* Call run_mac_command in sysdep.c here directly instead of doing
567 a child_setup as for MSDOS and other platforms. Note that this
568 code does not handle passing the environment to the synchronous
570 char *infn
, *outfn
, *errfn
, *currdn
;
572 /* close these files so subprocess can write to them */
574 if (fd_error
!= outfilefd
)
576 fd1
= -1; /* No harm in closing that one! */
578 infn
= SDATA (infile
);
580 if (NILP (error_file
))
582 else if (EQ (Qt
, error_file
))
585 errfn
= SDATA (error_file
);
586 currdn
= SDATA (current_dir
);
587 pid
= run_mac_command (new_argv
, currdn
, infn
, outfn
, errfn
);
589 /* Record that the synchronous process exited and note its
590 termination status. */
591 synch_process_alive
= 0;
592 synch_process_retcode
= pid
;
593 if (synch_process_retcode
< 0) /* means it couldn't be exec'ed */
595 synchronize_system_messages_locale ();
596 synch_process_death
= strerror (errno
);
599 /* Since CRLF is converted to LF within `decode_coding', we can
600 always open a file with binary mode. */
601 fd
[0] = open (tempfile
, O_BINARY
);
606 report_file_error ("Cannot re-open temporary file", Qnil
);
609 #else /* not MAC_OS8 */
610 #ifdef MSDOS /* MW, July 1993 */
611 /* Note that on MSDOS `child_setup' actually returns the child process
612 exit status, not its PID, so we assign it to `synch_process_retcode'
614 pid
= child_setup (filefd
, outfilefd
, fd_error
, (char **) new_argv
,
617 /* Record that the synchronous process exited and note its
618 termination status. */
619 synch_process_alive
= 0;
620 synch_process_retcode
= pid
;
621 if (synch_process_retcode
< 0) /* means it couldn't be exec'ed */
623 synchronize_system_messages_locale ();
624 synch_process_death
= strerror (errno
);
627 emacs_close (outfilefd
);
628 if (fd_error
!= outfilefd
)
629 emacs_close (fd_error
);
630 fd1
= -1; /* No harm in closing that one! */
631 /* Since CRLF is converted to LF within `decode_coding', we can
632 always open a file with binary mode. */
633 fd
[0] = emacs_open (tempfile
, O_RDONLY
| O_BINARY
, 0);
637 emacs_close (filefd
);
638 report_file_error ("Cannot re-open temporary file", Qnil
);
640 #else /* not MSDOS */
642 pid
= child_setup (filefd
, fd1
, fd_error
, (char **) new_argv
,
644 #else /* not WINDOWSNT */
656 #if defined (USG) && !defined (BSD_PGRPS)
661 child_setup (filefd
, fd1
, fd_error
, (char **) new_argv
,
666 #endif /* not WINDOWSNT */
668 /* The MSDOS case did this already. */
670 emacs_close (fd_error
);
671 #endif /* not MSDOS */
672 #endif /* not MAC_OS8 */
674 environ
= save_environ
;
676 /* Close most of our fd's, but not fd[0]
677 since we will use that to read input from. */
678 emacs_close (filefd
);
679 if (fd1
>= 0 && fd1
!= fd_error
)
687 report_file_error ("Doing vfork", Qnil
);
690 if (INTEGERP (buffer
))
695 /* If Emacs has been built with asynchronous subprocess support,
696 we don't need to do this, I think because it will then have
697 the facilities for handling SIGCHLD. */
698 wait_without_blocking ();
699 #endif /* subprocesses */
703 /* Enable sending signal if user quits below. */
704 call_process_exited
= 0;
706 #if defined(MSDOS) || defined(MAC_OS8)
707 /* MSDOS needs different cleanup information. */
708 record_unwind_protect (call_process_cleanup
,
709 Fcons (make_number (fd
[0]), build_string (tempfile
)));
711 record_unwind_protect (call_process_cleanup
,
712 Fcons (make_number (fd
[0]), make_number (pid
)));
713 #endif /* not MSDOS and not MAC_OS8 */
716 if (BUFFERP (buffer
))
717 Fset_buffer (buffer
);
721 /* If BUFFER is nil, we must read process output once and then
722 discard it, so setup coding system but with nil. */
723 setup_coding_system (Qnil
, &process_coding
);
727 Lisp_Object val
, *args2
;
730 if (!NILP (Vcoding_system_for_read
))
731 val
= Vcoding_system_for_read
;
734 if (EQ (coding_systems
, Qt
))
738 args2
= (Lisp_Object
*) alloca ((nargs
+ 1) * sizeof *args2
);
739 args2
[0] = Qcall_process
;
740 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
742 = Ffind_operation_coding_system (nargs
+ 1, args2
);
744 if (CONSP (coding_systems
))
745 val
= XCAR (coding_systems
);
746 else if (CONSP (Vdefault_process_coding_system
))
747 val
= XCAR (Vdefault_process_coding_system
);
751 Fcheck_coding_system (val
);
752 /* In unibyte mode, character code conversion should not take
753 place but EOL conversion should. So, setup raw-text or one
754 of the subsidiary according to the information just setup. */
755 if (NILP (current_buffer
->enable_multibyte_characters
)
757 val
= raw_text_coding_system (val
);
758 setup_coding_system (val
, &process_coding
);
769 int display_on_the_fly
= display_p
;
770 struct coding_system saved_coding
;
772 saved_coding
= process_coding
;
775 /* Repeatedly read until we've filled as much as possible
776 of the buffer size we have. But don't read
777 less than 1024--save that for the next bufferful. */
779 while (nread
< bufsize
- 1024)
781 int this_read
= emacs_read (fd
[0], buf
+ nread
,
789 process_coding
.mode
|= CODING_MODE_LAST_BLOCK
;
794 total_read
+= this_read
;
796 if (display_on_the_fly
)
800 /* Now NREAD is the total amount of data in the buffer. */
805 if (NILP (current_buffer
->enable_multibyte_characters
)
806 && ! CODING_MAY_REQUIRE_DECODING (&process_coding
))
807 insert_1_both (buf
, nread
, nread
, 0, 1, 0);
809 { /* We have to decode the input. */
812 XSETBUFFER (curbuf
, current_buffer
);
813 decode_coding_c_string (&process_coding
, buf
, nread
,
815 if (display_on_the_fly
816 && CODING_REQUIRE_DETECTION (&saved_coding
)
817 && ! CODING_REQUIRE_DETECTION (&process_coding
))
819 /* We have detected some coding system. But,
820 there's a possibility that the detection was
821 done by insufficient data. So, we give up
822 displaying on the fly. */
823 if (process_coding
.produced
> 0)
824 del_range_2 (process_coding
.dst_pos
,
825 process_coding
.dst_pos_byte
,
826 process_coding
.dst_pos
827 + process_coding
.produced_char
,
828 process_coding
.dst_pos_byte
829 + process_coding
.produced
, 0);
830 display_on_the_fly
= 0;
831 process_coding
= saved_coding
;
833 /* This is to make the above condition always
834 fails in the future. */
835 saved_coding
.common_flags
836 &= ~CODING_REQUIRE_DETECTION_MASK
;
840 TEMP_SET_PT_BOTH (PT
+ process_coding
.produced_char
,
841 PT_BYTE
+ process_coding
.produced
);
842 carryover
= process_coding
.carryover_bytes
;
844 /* As CARRYOVER should not be that large, we had
845 better avoid overhead of bcopy. */
846 BCOPY_SHORT (process_coding
.carryover
, buf
,
847 process_coding
.carryover_bytes
);
851 if (process_coding
.mode
& CODING_MODE_LAST_BLOCK
)
854 #if (CALLPROC_BUFFER_SIZE_MIN != CALLPROC_BUFFER_SIZE_MAX)
855 /* Make the buffer bigger as we continue to read more data,
856 but not past CALLPROC_BUFFER_SIZE_MAX. */
857 if (bufsize
< CALLPROC_BUFFER_SIZE_MAX
&& total_read
> 32 * bufsize
)
858 if ((bufsize
*= 2) > CALLPROC_BUFFER_SIZE_MAX
)
859 bufsize
= CALLPROC_BUFFER_SIZE_MAX
;
865 prepare_menu_bars ();
867 redisplay_preserve_echo_area (1);
868 /* This variable might have been set to 0 for code
869 detection. In that case, we set it back to 1 because
870 we should have already detected a coding system. */
871 display_on_the_fly
= 1;
878 Vlast_coding_system_used
= CODING_ID_NAME (process_coding
.id
);
879 /* If the caller required, let the buffer inherit the
880 coding-system used to decode the process output. */
881 if (inherit_process_coding_system
)
882 call1 (intern ("after-insert-file-set-buffer-file-coding-system"),
883 make_number (total_read
));
886 /* Wait for it to terminate, unless it already has. */
887 wait_for_termination (pid
);
891 set_buffer_internal (old
);
893 /* Don't kill any children that the subprocess may have left behind
895 call_process_exited
= 1;
897 unbind_to (count
, Qnil
);
899 if (synch_process_termsig
)
903 synchronize_system_messages_locale ();
904 signame
= strsignal (synch_process_termsig
);
909 synch_process_death
= signame
;
912 if (synch_process_death
)
913 return code_convert_string_norecord (build_string (synch_process_death
),
914 Vlocale_coding_system
, 0);
915 return make_number (synch_process_retcode
);
920 delete_temp_file (name
)
923 /* Suppress jka-compr handling, etc. */
924 int count
= SPECPDL_INDEX ();
925 specbind (intern ("file-name-handler-alist"), Qnil
);
926 internal_delete_file (name
);
927 unbind_to (count
, Qnil
);
931 DEFUN ("call-process-region", Fcall_process_region
, Scall_process_region
,
933 doc
: /* Send text from START to END to a synchronous process running PROGRAM.
934 The remaining arguments are optional.
935 Delete the text if fourth arg DELETE is non-nil.
937 Insert output in BUFFER before point; t means current buffer;
938 nil for BUFFER means discard it; 0 means discard and don't wait.
939 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
940 REAL-BUFFER says what to do with standard output, as above,
941 while STDERR-FILE says what to do with standard error in the child.
942 STDERR-FILE may be nil (discard standard error output),
943 t (mix it with ordinary output), or a file name string.
945 Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted.
946 Remaining args are passed to PROGRAM at startup as command args.
948 If BUFFER is 0, `call-process-region' returns immediately with value nil.
949 Otherwise it waits for PROGRAM to terminate
950 and returns a numeric exit status or a signal description string.
951 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
953 usage: (call-process-region START END PROGRAM &optional DELETE BUFFER DISPLAY &rest ARGS) */)
956 register Lisp_Object
*args
;
959 Lisp_Object filename_string
;
960 register Lisp_Object start
, end
;
961 int count
= SPECPDL_INDEX ();
962 /* Qt denotes we have not yet called Ffind_operation_coding_system. */
963 Lisp_Object coding_systems
;
964 Lisp_Object val
, *args2
;
970 if ((outf
= egetenv ("TMPDIR"))
971 || (outf
= egetenv ("TMP"))
972 || (outf
= egetenv ("TEMP")))
973 strcpy (tempfile
= alloca (strlen (outf
) + 20), outf
);
976 tempfile
= alloca (20);
979 if (!IS_DIRECTORY_SEP (tempfile
[strlen (tempfile
) - 1]))
980 strcat (tempfile
, "/");
981 if ('/' == DIRECTORY_SEP
)
982 dostounix_filename (tempfile
);
984 unixtodos_filename (tempfile
);
986 strcat (tempfile
, "emXXXXXX");
988 strcat (tempfile
, "detmp.XXX");
990 #else /* not DOS_NT */
991 char *tempfile
= (char *) alloca (SBYTES (Vtemp_file_name_pattern
) + 1);
992 bcopy (SDATA (Vtemp_file_name_pattern
), tempfile
,
993 SBYTES (Vtemp_file_name_pattern
) + 1);
994 #endif /* not DOS_NT */
1003 fd
= mkstemp (tempfile
);
1006 report_file_error ("Failed to open temporary file",
1007 Fcons (Vtemp_file_name_pattern
, Qnil
));
1015 filename_string
= build_string (tempfile
);
1016 GCPRO1 (filename_string
);
1019 /* Decide coding-system of the contents of the temporary file. */
1020 if (!NILP (Vcoding_system_for_write
))
1021 val
= Vcoding_system_for_write
;
1022 else if (NILP (current_buffer
->enable_multibyte_characters
))
1026 args2
= (Lisp_Object
*) alloca ((nargs
+ 1) * sizeof *args2
);
1027 args2
[0] = Qcall_process_region
;
1028 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
1029 coding_systems
= Ffind_operation_coding_system (nargs
+ 1, args2
);
1030 if (CONSP (coding_systems
))
1031 val
= XCDR (coding_systems
);
1032 else if (CONSP (Vdefault_process_coding_system
))
1033 val
= XCDR (Vdefault_process_coding_system
);
1039 int count1
= SPECPDL_INDEX ();
1041 specbind (intern ("coding-system-for-write"), val
);
1042 /* POSIX lets mk[s]temp use "."; don't invoke jka-compr if we
1043 happen to get a ".Z" suffix. */
1044 specbind (intern ("file-name-handler-alist"), Qnil
);
1045 Fwrite_region (start
, end
, filename_string
, Qnil
, Qlambda
, Qnil
, Qnil
);
1047 unbind_to (count1
, Qnil
);
1050 /* Note that Fcall_process takes care of binding
1051 coding-system-for-read. */
1053 record_unwind_protect (delete_temp_file
, filename_string
);
1055 if (nargs
> 3 && !NILP (args
[3]))
1056 Fdelete_region (start
, end
);
1068 args
[1] = filename_string
;
1070 RETURN_UNGCPRO (unbind_to (count
, Fcall_process (nargs
, args
)));
1073 #ifndef VMS /* VMS version is in vmsproc.c. */
1075 static int relocate_fd ();
1078 add_env (char **env
, char **new_env
, char *string
)
1085 /* See if this string duplicates any string already in the env.
1086 If so, don't put it in.
1087 When an env var has multiple definitions,
1088 we keep the definition that comes first in process-environment. */
1089 for (ep
= env
; ok
&& ep
!= new_env
; ep
++)
1091 char *p
= *ep
, *q
= string
;
1097 /* The string is a lone variable name; keep it for now, we
1098 will remove it later. It is a placeholder for a
1099 variable that is not to be included in the environment. */
1107 *new_env
++ = string
;
1111 /* This is the last thing run in a newly forked inferior
1112 either synchronous or asynchronous.
1113 Copy descriptors IN, OUT and ERR as descriptors 0, 1 and 2.
1114 Initialize inferior's priority, pgrp, connected dir and environment.
1115 then exec another program based on new_argv.
1117 This function may change environ for the superior process.
1118 Therefore, the superior process must save and restore the value
1119 of environ around the vfork and the call to this function.
1121 SET_PGRP is nonzero if we should put the subprocess into a separate
1124 CURRENT_DIR is an elisp string giving the path of the current
1125 directory the subprocess should have. Since we can't really signal
1126 a decent error from within the child, this should be verified as an
1127 executable directory by the parent. */
1130 child_setup (in
, out
, err
, new_argv
, set_pgrp
, current_dir
)
1132 register char **new_argv
;
1134 Lisp_Object current_dir
;
1141 #endif /* WINDOWSNT */
1143 int pid
= getpid ();
1145 #ifdef SET_EMACS_PRIORITY
1147 extern EMACS_INT emacs_priority
;
1149 if (emacs_priority
< 0)
1150 nice (- emacs_priority
);
1155 /* Close Emacs's descriptors that this process should not have. */
1156 close_process_descs ();
1158 /* DOS_NT isn't in a vfork, so if we are in the middle of load-file,
1159 we will lose if we call close_load_descs here. */
1161 close_load_descs ();
1164 /* Note that use of alloca is always safe here. It's obvious for systems
1165 that do not have true vfork or that have true (stack) alloca.
1166 If using vfork and C_ALLOCA (when Emacs used to include
1167 src/alloca.c) it is safe because that changes the superior's
1168 static variables as if the superior had done alloca and will be
1169 cleaned up in the usual way. */
1171 register char *temp
;
1174 i
= SBYTES (current_dir
);
1176 /* MSDOS must have all environment variables malloc'ed, because
1177 low-level libc functions that launch subsidiary processes rely
1179 pwd_var
= (char *) xmalloc (i
+ 6);
1181 pwd_var
= (char *) alloca (i
+ 6);
1184 bcopy ("PWD=", pwd_var
, 4);
1185 bcopy (SDATA (current_dir
), temp
, i
);
1186 if (!IS_DIRECTORY_SEP (temp
[i
- 1])) temp
[i
++] = DIRECTORY_SEP
;
1190 /* We can't signal an Elisp error here; we're in a vfork. Since
1191 the callers check the current directory before forking, this
1192 should only return an error if the directory's permissions
1193 are changed between the check and this chdir, but we should
1195 if (chdir (temp
) < 0)
1200 /* Get past the drive letter, so that d:/ is left alone. */
1201 if (i
> 2 && IS_DEVICE_SEP (temp
[1]) && IS_DIRECTORY_SEP (temp
[2]))
1208 /* Strip trailing slashes for PWD, but leave "/" and "//" alone. */
1209 while (i
> 2 && IS_DIRECTORY_SEP (temp
[i
- 1]))
1213 /* Set `env' to a vector of the strings in the environment. */
1215 register Lisp_Object tem
;
1216 register char **new_env
;
1218 register int new_length
;
1219 Lisp_Object display
= Qnil
;
1223 for (tem
= Vprocess_environment
;
1224 CONSP (tem
) && STRINGP (XCAR (tem
));
1227 if (strncmp (SDATA (XCAR (tem
)), "DISPLAY", 7) == 0
1228 && (SDATA (XCAR (tem
)) [7] == '\0'
1229 || SDATA (XCAR (tem
)) [7] == '='))
1230 /* DISPLAY is specified in process-environment. */
1235 /* If not provided yet, use the frame's DISPLAY. */
1238 Lisp_Object tmp
= Fframe_parameter (selected_frame
, Qdisplay
);
1239 if (!STRINGP (tmp
) && CONSP (Vinitial_environment
))
1240 /* If still not found, Look for DISPLAY in Vinitial_environment. */
1241 tmp
= Fgetenv_internal (build_string ("DISPLAY"),
1242 Vinitial_environment
);
1250 /* new_length + 2 to include PWD and terminating 0. */
1251 env
= new_env
= (char **) alloca ((new_length
+ 2) * sizeof (char *));
1252 /* If we have a PWD envvar, pass one down,
1253 but with corrected value. */
1254 if (egetenv ("PWD"))
1255 *new_env
++ = pwd_var
;
1257 if (STRINGP (display
))
1259 int vlen
= strlen ("DISPLAY=") + strlen (SDATA (display
)) + 1;
1260 char *vdata
= (char *) alloca (vlen
);
1261 strcpy (vdata
, "DISPLAY=");
1262 strcat (vdata
, SDATA (display
));
1263 new_env
= add_env (env
, new_env
, vdata
);
1267 for (tem
= Vprocess_environment
;
1268 CONSP (tem
) && STRINGP (XCAR (tem
));
1270 new_env
= add_env (env
, new_env
, SDATA (XCAR (tem
)));
1274 /* Remove variable names without values. */
1278 while (*q
!= 0 && strchr (*q
, '=') == NULL
)
1288 prepare_standard_handles (in
, out
, err
, handles
);
1289 set_process_dir (SDATA (current_dir
));
1290 #else /* not WINDOWSNT */
1291 /* Make sure that in, out, and err are not actually already in
1292 descriptors zero, one, or two; this could happen if Emacs is
1293 started with its standard in, out, or error closed, as might
1296 int oin
= in
, oout
= out
;
1298 /* We have to avoid relocating the same descriptor twice! */
1300 in
= relocate_fd (in
, 3);
1305 out
= relocate_fd (out
, 3);
1309 else if (err
== oout
)
1312 err
= relocate_fd (err
, 3);
1326 #endif /* not MSDOS */
1327 #endif /* not WINDOWSNT */
1329 #if defined(USG) && !defined(BSD_PGRPS)
1330 #ifndef SETPGRP_RELEASES_CTTY
1331 setpgrp (); /* No arguments but equivalent in this case */
1336 /* setpgrp_of_tty is incorrect here; it uses input_fd. */
1337 EMACS_SET_TTY_PGRP (0, &pid
);
1340 pid
= run_msdos_command (new_argv
, pwd_var
+ 4, in
, out
, err
, env
);
1343 /* An error occurred while trying to run the subprocess. */
1344 report_file_error ("Spawning child process", Qnil
);
1346 #else /* not MSDOS */
1348 /* Spawn the child. (See ntproc.c:Spawnve). */
1349 cpid
= spawnve (_P_NOWAIT
, new_argv
[0], new_argv
, env
);
1350 reset_standard_handles (in
, out
, err
, handles
);
1352 /* An error occurred while trying to spawn the process. */
1353 report_file_error ("Spawning child process", Qnil
);
1355 #else /* not WINDOWSNT */
1356 /* execvp does not accept an environment arg so the only way
1357 to pass this environment is to set environ. Our caller
1358 is responsible for restoring the ambient value of environ. */
1360 execvp (new_argv
[0], new_argv
);
1362 emacs_write (1, "Can't exec program: ", 20);
1363 emacs_write (1, new_argv
[0], strlen (new_argv
[0]));
1364 emacs_write (1, "\n", 1);
1366 #endif /* not WINDOWSNT */
1367 #endif /* not MSDOS */
1370 /* Move the file descriptor FD so that its number is not less than MINFD.
1371 If the file descriptor is moved at all, the original is freed. */
1373 relocate_fd (fd
, minfd
)
1383 char *message1
= "Error while setting up child: ";
1384 char *errmessage
= strerror (errno
);
1385 char *message2
= "\n";
1386 emacs_write (2, message1
, strlen (message1
));
1387 emacs_write (2, errmessage
, strlen (errmessage
));
1388 emacs_write (2, message2
, strlen (message2
));
1391 /* Note that we hold the original FD open while we recurse,
1392 to guarantee we'll get a new FD if we need it. */
1393 new = relocate_fd (new, minfd
);
1400 getenv_internal_1 (var
, varlen
, value
, valuelen
, env
)
1407 for (; CONSP (env
); env
= XCDR (env
))
1409 Lisp_Object entry
= XCAR (env
);
1411 && SBYTES (entry
) >= varlen
1413 /* NT environment variables are case insensitive. */
1414 && ! strnicmp (SDATA (entry
), var
, varlen
)
1415 #else /* not WINDOWSNT */
1416 && ! bcmp (SDATA (entry
), var
, varlen
)
1417 #endif /* not WINDOWSNT */
1420 if (SBYTES (entry
) > varlen
&& SREF (entry
, varlen
) == '=')
1422 *value
= (char *) SDATA (entry
) + (varlen
+ 1);
1423 *valuelen
= SBYTES (entry
) - (varlen
+ 1);
1426 else if (SBYTES (entry
) == varlen
)
1428 /* Lone variable names in Vprocess_environment mean that
1429 variable should be removed from the environment. */
1439 getenv_internal (var
, varlen
, value
, valuelen
, frame
)
1446 /* Try to find VAR in Vprocess_environment first. */
1447 if (getenv_internal_1 (var
, varlen
, value
, valuelen
,
1448 Vprocess_environment
))
1449 return *value
? 1 : 0;
1451 /* For DISPLAY try to get the values from the frame or the initial env. */
1452 if (strcmp (var
, "DISPLAY") == 0)
1455 = Fframe_parameter (NILP (frame
) ? selected_frame
: frame
, Qdisplay
);
1456 if (STRINGP (display
))
1458 *value
= (char *) SDATA (display
);
1459 *valuelen
= SBYTES (display
);
1462 /* If still not found, Look for DISPLAY in Vinitial_environment. */
1463 if (getenv_internal_1 (var
, varlen
, value
, valuelen
,
1464 Vinitial_environment
))
1465 return *value
? 1 : 0;
1471 DEFUN ("getenv-internal", Fgetenv_internal
, Sgetenv_internal
, 1, 2, 0,
1472 doc
: /* Get the value of environment variable VARIABLE.
1473 VARIABLE should be a string. Value is nil if VARIABLE is undefined in
1474 the environment. Otherwise, value is a string.
1476 This function searches `process-environment' for VARIABLE. If it is
1477 not found there, then it continues the search in the environment list
1478 of the selected frame.
1480 If optional parameter ENV is a list, then search this list instead of
1481 `process-environment', and return t when encountering a negative entry.
1483 If it is a frame, then this function will ignore `process-environment' and
1484 will simply look up the variable in that frame's environment. */)
1486 Lisp_Object variable
, env
;
1491 CHECK_STRING (variable
);
1494 if (getenv_internal_1 (SDATA (variable
), SBYTES (variable
),
1495 &value
, &valuelen
, env
))
1496 return value
? make_string (value
, valuelen
) : Qt
;
1500 else if (getenv_internal (SDATA (variable
), SBYTES (variable
),
1501 &value
, &valuelen
, env
))
1502 return make_string (value
, valuelen
);
1507 /* A version of getenv that consults the Lisp environment lists,
1508 easily callable from C. */
1516 if (getenv_internal (var
, strlen (var
), &value
, &valuelen
, Qnil
))
1522 #endif /* not VMS */
1524 /* This is run before init_cmdargs. */
1529 char *data_dir
= egetenv ("EMACSDATA");
1530 char *doc_dir
= egetenv ("EMACSDOC");
1533 = Ffile_name_as_directory (build_string (data_dir
? data_dir
1536 = Ffile_name_as_directory (build_string (doc_dir
? doc_dir
1539 /* Check the EMACSPATH environment variable, defaulting to the
1540 PATH_EXEC path from epaths.h. */
1541 Vexec_path
= decode_env_path ("EMACSPATH", PATH_EXEC
);
1542 Vexec_directory
= Ffile_name_as_directory (Fcar (Vexec_path
));
1543 Vexec_path
= nconc2 (decode_env_path ("PATH", ""), Vexec_path
);
1546 /* This is run after init_cmdargs, when Vinstallation_directory is valid. */
1551 char *data_dir
= egetenv ("EMACSDATA");
1554 Lisp_Object tempdir
;
1556 if (!NILP (Vinstallation_directory
))
1558 /* Add to the path the lib-src subdir of the installation dir. */
1560 tem
= Fexpand_file_name (build_string ("lib-src"),
1561 Vinstallation_directory
);
1563 /* MSDOS uses wrapped binaries, so don't do this. */
1564 if (NILP (Fmember (tem
, Vexec_path
)))
1566 Vexec_path
= decode_env_path ("EMACSPATH", PATH_EXEC
);
1567 Vexec_path
= Fcons (tem
, Vexec_path
);
1568 Vexec_path
= nconc2 (decode_env_path ("PATH", ""), Vexec_path
);
1571 Vexec_directory
= Ffile_name_as_directory (tem
);
1572 #endif /* not DOS_NT */
1574 /* Maybe use ../etc as well as ../lib-src. */
1577 tem
= Fexpand_file_name (build_string ("etc"),
1578 Vinstallation_directory
);
1579 Vdoc_directory
= Ffile_name_as_directory (tem
);
1583 /* Look for the files that should be in etc. We don't use
1584 Vinstallation_directory, because these files are never installed
1585 near the executable, and they are never in the build
1586 directory when that's different from the source directory.
1588 Instead, if these files are not in the nominal place, we try the
1589 source directory. */
1592 Lisp_Object tem
, tem1
, srcdir
;
1594 srcdir
= Fexpand_file_name (build_string ("../src/"),
1595 build_string (PATH_DUMPLOADSEARCH
));
1596 tem
= Fexpand_file_name (build_string ("GNU"), Vdata_directory
);
1597 tem1
= Ffile_exists_p (tem
);
1598 if (!NILP (Fequal (srcdir
, Vinvocation_directory
)) || NILP (tem1
))
1601 newdir
= Fexpand_file_name (build_string ("../etc/"),
1602 build_string (PATH_DUMPLOADSEARCH
));
1603 tem
= Fexpand_file_name (build_string ("GNU"), newdir
);
1604 tem1
= Ffile_exists_p (tem
);
1606 Vdata_directory
= newdir
;
1614 tempdir
= Fdirectory_file_name (Vexec_directory
);
1615 if (access (SDATA (tempdir
), 0) < 0)
1616 dir_warning ("Warning: arch-dependent data dir (%s) does not exist.\n",
1620 tempdir
= Fdirectory_file_name (Vdata_directory
);
1621 if (access (SDATA (tempdir
), 0) < 0)
1622 dir_warning ("Warning: arch-independent data dir (%s) does not exist.\n",
1626 Vshell_file_name
= build_string ("*dcl*");
1628 sh
= (char *) getenv ("SHELL");
1629 Vshell_file_name
= build_string (sh
? sh
: "/bin/sh");
1633 Vtemp_file_name_pattern
= build_string ("tmp:emacsXXXXXX.");
1635 if (getenv ("TMPDIR"))
1637 char *dir
= getenv ("TMPDIR");
1638 Vtemp_file_name_pattern
1639 = Fexpand_file_name (build_string ("emacsXXXXXX"),
1640 build_string (dir
));
1643 Vtemp_file_name_pattern
= build_string ("/tmp/emacsXXXXXX");
1647 Vshared_game_score_directory
= Qnil
;
1649 Vshared_game_score_directory
= build_string (PATH_GAME
);
1650 if (NILP (Ffile_directory_p (Vshared_game_score_directory
)))
1651 Vshared_game_score_directory
= Qnil
;
1656 set_initial_environment ()
1658 register char **envp
;
1663 for (envp
= environ
; *envp
; envp
++)
1664 Vprocess_environment
= Fcons (build_string (*envp
),
1665 Vprocess_environment
);
1666 /* Ideally, the `copy' shouldn't be necessary, but it seems it's frequent
1667 to use `delete' and friends on process-environment. */
1668 Vinitial_environment
= Fcopy_sequence (Vprocess_environment
);
1676 Qbuffer_file_type
= intern ("buffer-file-type");
1677 staticpro (&Qbuffer_file_type
);
1680 DEFVAR_LISP ("shell-file-name", &Vshell_file_name
,
1681 doc
: /* *File name to load inferior shells from.
1682 Initialized from the SHELL environment variable, or to a system-dependent
1683 default if SHELL is not set. */);
1685 DEFVAR_LISP ("exec-path", &Vexec_path
,
1686 doc
: /* *List of directories to search programs to run in subprocesses.
1687 Each element is a string (directory name) or nil (try default directory). */);
1689 DEFVAR_LISP ("exec-suffixes", &Vexec_suffixes
,
1690 doc
: /* *List of suffixes to try to find executable file names.
1691 Each element is a string. */);
1692 Vexec_suffixes
= Qnil
;
1694 DEFVAR_LISP ("exec-directory", &Vexec_directory
,
1695 doc
: /* Directory for executables for Emacs to invoke.
1696 More generally, this includes any architecture-dependent files
1697 that are built and installed from the Emacs distribution. */);
1699 DEFVAR_LISP ("data-directory", &Vdata_directory
,
1700 doc
: /* Directory of machine-independent files that come with GNU Emacs.
1701 These are files intended for Emacs to use while it runs. */);
1703 DEFVAR_LISP ("doc-directory", &Vdoc_directory
,
1704 doc
: /* Directory containing the DOC file that comes with GNU Emacs.
1705 This is usually the same as `data-directory'. */);
1707 DEFVAR_LISP ("configure-info-directory", &Vconfigure_info_directory
,
1708 doc
: /* For internal use by the build procedure only.
1709 This is the name of the directory in which the build procedure installed
1710 Emacs's info files; the default value for `Info-default-directory-list'
1712 Vconfigure_info_directory
= build_string (PATH_INFO
);
1714 DEFVAR_LISP ("shared-game-score-directory", &Vshared_game_score_directory
,
1715 doc
: /* Directory of score files for games which come with GNU Emacs.
1716 If this variable is nil, then Emacs is unable to use a shared directory. */);
1718 Vshared_game_score_directory
= Qnil
;
1720 Vshared_game_score_directory
= build_string (PATH_GAME
);
1723 DEFVAR_LISP ("temp-file-name-pattern", &Vtemp_file_name_pattern
,
1724 doc
: /* Pattern for making names for temporary files.
1725 This is used by `call-process-region'. */);
1726 /* This variable is initialized in init_callproc. */
1728 DEFVAR_LISP ("initial-environment", &Vinitial_environment
,
1729 doc
: /* List of environment variables inherited from the parent process.
1730 Each element should be a string of the form ENVVARNAME=VALUE.
1731 The elements must normally be decoded (using `locale-coding-system') for use. */);
1732 Vinitial_environment
= Qnil
;
1734 DEFVAR_LISP ("process-environment", &Vprocess_environment
,
1735 doc
: /* List of overridden environment variables for subprocesses to inherit.
1736 Each element should be a string of the form ENVVARNAME=VALUE.
1738 Entries in this list take precedence to those in the frame-local
1739 environments. Therefore, let-binding `process-environment' is an easy
1740 way to temporarily change the value of an environment variable,
1741 irrespective of where it comes from. To use `process-environment' to
1742 remove an environment variable, include only its name in the list,
1745 This variable is set to nil when Emacs starts.
1747 If multiple entries define the same variable, the first one always
1750 Non-ASCII characters are encoded according to the initial value of
1751 `locale-coding-system', i.e. the elements must normally be decoded for
1754 See `setenv' and `getenv'. */);
1755 Vprocess_environment
= Qnil
;
1758 defsubr (&Scall_process
);
1759 defsubr (&Sgetenv_internal
);
1761 defsubr (&Scall_process_region
);
1764 /* arch-tag: 769b8045-1df7-4d2b-8968-e3fb49017f95
1765 (do not change this comment) */