1 /* Synchronous subprocess invocation for GNU Emacs.
2 Copyright (C) 1985-1988, 1993-1995, 1999-2012
3 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 of the License, or
10 (at your option) any later version.
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. If not, see <http://www.gnu.org/licenses/>. */
24 #include <sys/types.h>
36 #define _P_NOWAIT 1 /* from process.h */
39 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
41 #include <sys/param.h>
45 #include "character.h"
49 #include "composite.h"
52 #include "syssignal.h"
55 #include "blockinput.h"
57 #include "termhooks.h"
67 /* Pattern used by call-process-region to make temp files. */
68 static Lisp_Object Vtemp_file_name_pattern
;
70 /* True if we are about to fork off a synchronous process or if we
71 are waiting for it. */
72 bool synch_process_alive
;
74 /* Nonzero => this is a string explaining death of synchronous subprocess. */
75 const char *synch_process_death
;
77 /* Nonzero => this is the signal number that terminated the subprocess. */
78 int synch_process_termsig
;
80 /* If synch_process_death is zero,
81 this is exit code of synchronous subprocess. */
82 int synch_process_retcode
;
85 /* Clean up when exiting Fcall_process.
86 On MSDOS, delete the temporary file on any kind of termination.
87 On Unix, kill the process and any children on termination by signal. */
89 /* True if this is termination due to exit. */
90 static bool call_process_exited
;
93 call_process_kill (Lisp_Object fdpid
)
97 CONS_TO_INTEGER (Fcar (fdpid
), int, fd
);
98 CONS_TO_INTEGER (Fcdr (fdpid
), pid_t
, pid
);
100 EMACS_KILLPG (pid
, SIGKILL
);
101 synch_process_alive
= 0;
106 call_process_cleanup (Lisp_Object arg
)
108 Lisp_Object fdpid
= Fcdr (arg
);
116 Fset_buffer (Fcar (arg
));
117 CONS_TO_INTEGER (Fcar (fdpid
), int, fd
);
120 /* for MSDOS fdpid is really (fd . tempfile) */
122 /* FD is -1 and FILE is "" when we didn't actually create a
123 temporary file in call-process. */
126 if (!(strcmp (SDATA (file
), NULL_DEVICE
) == 0 || SREF (file
, 0) == '\0'))
127 unlink (SDATA (file
));
128 #else /* not MSDOS */
129 CONS_TO_INTEGER (Fcdr (fdpid
), pid_t
, pid
);
131 if (call_process_exited
)
137 if (EMACS_KILLPG (pid
, SIGINT
) == 0)
139 ptrdiff_t count
= SPECPDL_INDEX ();
140 record_unwind_protect (call_process_kill
, fdpid
);
141 message1 ("Waiting for process to die...(type C-g again to kill it instantly)");
144 wait_for_termination (pid
);
146 specpdl_ptr
= specpdl
+ count
; /* Discard the unwind protect. */
147 message1 ("Waiting for process to die...done");
149 synch_process_alive
= 0;
151 #endif /* not MSDOS */
155 DEFUN ("call-process", Fcall_process
, Scall_process
, 1, MANY
, 0,
156 doc
: /* Call PROGRAM synchronously in separate process.
157 The remaining arguments are optional.
158 The program's input comes from file INFILE (nil means `/dev/null').
159 Insert output in BUFFER before point; t means current buffer; nil for BUFFER
160 means discard it; 0 means discard and don't wait; and `(:file FILE)', where
161 FILE is a file name string, means that it should be written to that file
162 \(if the file already exists it is overwritten).
163 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
164 REAL-BUFFER says what to do with standard output, as above,
165 while STDERR-FILE says what to do with standard error in the child.
166 STDERR-FILE may be nil (discard standard error output),
167 t (mix it with ordinary output), or a file name string.
169 Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.
170 Remaining arguments are strings passed as command arguments to PROGRAM.
172 If executable PROGRAM can't be found as an executable, `call-process'
173 signals a Lisp error. `call-process' reports errors in execution of
174 the program only through its return and output.
176 If BUFFER is 0, `call-process' returns immediately with value nil.
177 Otherwise it waits for PROGRAM to terminate
178 and returns a numeric exit status or a signal description string.
179 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
181 usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS) */)
182 (ptrdiff_t nargs
, Lisp_Object
*args
)
184 Lisp_Object infile
, buffer
, current_dir
, path
, cleanup_info_tail
;
186 int fd0
, fd1
, filefd
;
187 ptrdiff_t count
= SPECPDL_INDEX ();
191 /* File to use for stderr in the child.
192 t means use same as standard output. */
193 Lisp_Object error_file
;
194 Lisp_Object output_file
= Qnil
;
195 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
196 char *outf
, *tempfile
= NULL
;
204 struct coding_system process_coding
; /* coding-system of process output */
205 struct coding_system argument_coding
; /* coding-system of arguments */
206 /* Set to the return value of Ffind_operation_coding_system. */
207 Lisp_Object coding_systems
;
208 bool output_to_buffer
= 1;
210 /* Qt denotes that Ffind_operation_coding_system is not yet called. */
213 CHECK_STRING (args
[0]);
218 /* Without asynchronous processes we cannot have BUFFER == 0. */
220 && (INTEGERP (CONSP (args
[2]) ? XCAR (args
[2]) : args
[2])))
221 error ("Operating system cannot handle asynchronous subprocesses");
222 #endif /* subprocesses */
224 /* Decide the coding-system for giving arguments. */
226 Lisp_Object val
, *args2
;
229 /* If arguments are supplied, we may have to encode them. */
232 bool must_encode
= 0;
233 Lisp_Object coding_attrs
;
235 for (i
= 4; i
< nargs
; i
++)
236 CHECK_STRING (args
[i
]);
238 for (i
= 4; i
< nargs
; i
++)
239 if (STRING_MULTIBYTE (args
[i
]))
242 if (!NILP (Vcoding_system_for_write
))
243 val
= Vcoding_system_for_write
;
244 else if (! must_encode
)
248 SAFE_NALLOCA (args2
, 1, nargs
+ 1);
249 args2
[0] = Qcall_process
;
250 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
251 coding_systems
= Ffind_operation_coding_system (nargs
+ 1, args2
);
252 val
= CONSP (coding_systems
) ? XCDR (coding_systems
) : Qnil
;
254 val
= complement_process_encoding_system (val
);
255 setup_coding_system (Fcheck_coding_system (val
), &argument_coding
);
256 coding_attrs
= CODING_ID_ATTRS (argument_coding
.id
);
257 if (NILP (CODING_ATTR_ASCII_COMPAT (coding_attrs
)))
259 /* We should not use an ASCII incompatible coding system. */
260 val
= raw_text_coding_system (val
);
261 setup_coding_system (val
, &argument_coding
);
266 if (nargs
>= 2 && ! NILP (args
[1]))
268 infile
= Fexpand_file_name (args
[1], BVAR (current_buffer
, directory
));
269 CHECK_STRING (infile
);
272 infile
= build_string (NULL_DEVICE
);
278 /* If BUFFER is a list, its meaning is (BUFFER-FOR-STDOUT
279 FILE-FOR-STDERR), unless the first element is :file, in which case see
280 the next paragraph. */
282 && (! SYMBOLP (XCAR (buffer
))
283 || strcmp (SSDATA (SYMBOL_NAME (XCAR (buffer
))), ":file")))
285 if (CONSP (XCDR (buffer
)))
287 Lisp_Object stderr_file
;
288 stderr_file
= XCAR (XCDR (buffer
));
290 if (NILP (stderr_file
) || EQ (Qt
, stderr_file
))
291 error_file
= stderr_file
;
293 error_file
= Fexpand_file_name (stderr_file
, Qnil
);
296 buffer
= XCAR (buffer
);
299 /* If the buffer is (still) a list, it might be a (:file "file") spec. */
301 && SYMBOLP (XCAR (buffer
))
302 && ! strcmp (SSDATA (SYMBOL_NAME (XCAR (buffer
))), ":file"))
304 output_file
= Fexpand_file_name (XCAR (XCDR (buffer
)),
305 BVAR (current_buffer
, directory
));
306 CHECK_STRING (output_file
);
310 if (!(EQ (buffer
, Qnil
)
312 || INTEGERP (buffer
)))
314 Lisp_Object spec_buffer
;
315 spec_buffer
= buffer
;
316 buffer
= Fget_buffer_create (buffer
);
317 /* Mention the buffer name for a better error message. */
319 CHECK_BUFFER (spec_buffer
);
320 CHECK_BUFFER (buffer
);
326 /* Make sure that the child will be able to chdir to the current
327 buffer's current directory, or its unhandled equivalent. We
328 can't just have the child check for an error when it does the
329 chdir, since it's in a vfork.
331 We have to GCPRO around this because Fexpand_file_name,
332 Funhandled_file_name_directory, and Ffile_accessible_directory_p
333 might call a file name handling function. The argument list is
334 protected by the caller, so all we really have to worry about is
337 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
, gcpro5
;
339 current_dir
= BVAR (current_buffer
, directory
);
341 GCPRO5 (infile
, buffer
, current_dir
, error_file
, output_file
);
343 current_dir
= Funhandled_file_name_directory (current_dir
);
344 if (NILP (current_dir
))
345 /* If the file name handler says that current_dir is unreachable, use
346 a sensible default. */
347 current_dir
= build_string ("~/");
348 current_dir
= expand_and_dir_to_file (current_dir
, Qnil
);
349 current_dir
= Ffile_name_as_directory (current_dir
);
351 if (NILP (Ffile_accessible_directory_p (current_dir
)))
352 report_file_error ("Setting current directory",
353 Fcons (BVAR (current_buffer
, directory
), Qnil
));
355 if (STRING_MULTIBYTE (infile
))
356 infile
= ENCODE_FILE (infile
);
357 if (STRING_MULTIBYTE (current_dir
))
358 current_dir
= ENCODE_FILE (current_dir
);
359 if (STRINGP (error_file
) && STRING_MULTIBYTE (error_file
))
360 error_file
= ENCODE_FILE (error_file
);
361 if (STRINGP (output_file
) && STRING_MULTIBYTE (output_file
))
362 output_file
= ENCODE_FILE (output_file
);
366 display_p
= INTERACTIVE
&& nargs
>= 4 && !NILP (args
[3]);
368 filefd
= emacs_open (SSDATA (infile
), O_RDONLY
, 0);
371 infile
= DECODE_FILE (infile
);
372 report_file_error ("Opening process input file", Fcons (infile
, Qnil
));
375 if (STRINGP (output_file
))
378 fd_output
= emacs_open (SSDATA (output_file
),
379 O_WRONLY
| O_TRUNC
| O_CREAT
| O_TEXT
,
381 #else /* not DOS_NT */
382 fd_output
= creat (SSDATA (output_file
), 0666);
383 #endif /* not DOS_NT */
386 output_file
= DECODE_FILE (output_file
);
387 report_file_error ("Opening process output file",
388 Fcons (output_file
, Qnil
));
390 if (STRINGP (error_file
) || NILP (error_file
))
391 output_to_buffer
= 0;
394 /* Search for program; barf if not found. */
396 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
398 GCPRO4 (infile
, buffer
, current_dir
, error_file
);
399 openp (Vexec_path
, args
[0], Vexec_suffixes
, &path
, make_number (X_OK
));
404 emacs_close (filefd
);
405 report_file_error ("Searching for program", Fcons (args
[0], Qnil
));
408 /* If program file name starts with /: for quoting a magic name,
410 if (SBYTES (path
) > 2 && SREF (path
, 0) == '/'
411 && SREF (path
, 1) == ':')
412 path
= Fsubstring (path
, make_number (2), Qnil
);
414 new_argv
= SAFE_ALLOCA ((nargs
> 4 ? nargs
- 2 : 2) * sizeof *new_argv
);
418 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
, gcpro5
;
420 GCPRO5 (infile
, buffer
, current_dir
, path
, error_file
);
421 argument_coding
.dst_multibyte
= 0;
422 for (i
= 4; i
< nargs
; i
++)
424 argument_coding
.src_multibyte
= STRING_MULTIBYTE (args
[i
]);
425 if (CODING_REQUIRE_ENCODING (&argument_coding
))
426 /* We must encode this argument. */
427 args
[i
] = encode_coding_string (&argument_coding
, args
[i
], 1);
430 for (i
= 4; i
< nargs
; i
++)
431 new_argv
[i
- 3] = SSDATA (args
[i
]);
436 new_argv
[0] = SSDATA (path
);
438 #ifdef MSDOS /* MW, July 1993 */
440 /* If we're redirecting STDOUT to a file, that file is already open
444 if ((outf
= egetenv ("TMPDIR")))
445 strcpy (tempfile
= alloca (strlen (outf
) + 20), outf
);
448 tempfile
= alloca (20);
451 dostounix_filename (tempfile
);
452 if (*tempfile
== '\0' || tempfile
[strlen (tempfile
) - 1] != '/')
453 strcat (tempfile
, "/");
454 strcat (tempfile
, "detmp.XXX");
456 outfilefd
= creat (tempfile
, S_IREAD
| S_IWRITE
);
458 emacs_close (filefd
);
459 report_file_error ("Opening process output file",
460 Fcons (build_string (tempfile
), Qnil
));
464 outfilefd
= fd_output
;
469 if (INTEGERP (buffer
))
472 fd1
= emacs_open (NULL_DEVICE
, O_WRONLY
, 0);
480 int pipe_errno
= errno
;
481 emacs_close (filefd
);
483 report_file_error ("Creating process pipe", Qnil
);
496 /* Record that we're about to create a synchronous process. */
497 synch_process_alive
= 1;
499 /* These vars record information from process termination.
500 Clear them now before process can possibly terminate,
501 to avoid timing error if process terminates soon. */
502 synch_process_death
= 0;
503 synch_process_retcode
= 0;
504 synch_process_termsig
= 0;
506 if (NILP (error_file
))
507 fd_error
= emacs_open (NULL_DEVICE
, O_WRONLY
, 0);
508 else if (STRINGP (error_file
))
511 fd_error
= emacs_open (SSDATA (error_file
),
512 O_WRONLY
| O_TRUNC
| O_CREAT
| O_TEXT
,
514 #else /* not DOS_NT */
515 fd_error
= creat (SSDATA (error_file
), 0666);
516 #endif /* not DOS_NT */
521 emacs_close (filefd
);
529 if (NILP (error_file
))
530 error_file
= build_string (NULL_DEVICE
);
531 else if (STRINGP (error_file
))
532 error_file
= DECODE_FILE (error_file
);
533 report_file_error ("Cannot redirect stderr", Fcons (error_file
, Qnil
));
536 #ifdef MSDOS /* MW, July 1993 */
537 /* Note that on MSDOS `child_setup' actually returns the child process
538 exit status, not its PID, so we assign it to `synch_process_retcode'
540 pid
= child_setup (filefd
, outfilefd
, fd_error
, new_argv
, 0, current_dir
);
542 /* Record that the synchronous process exited and note its
543 termination status. */
544 synch_process_alive
= 0;
545 synch_process_retcode
= pid
;
546 if (synch_process_retcode
< 0) /* means it couldn't be exec'ed */
548 synchronize_system_messages_locale ();
549 synch_process_death
= strerror (errno
);
552 emacs_close (outfilefd
);
553 if (fd_error
!= outfilefd
)
554 emacs_close (fd_error
);
555 fd1
= -1; /* No harm in closing that one! */
558 /* Since CRLF is converted to LF within `decode_coding', we
559 can always open a file with binary mode. */
560 fd0
= emacs_open (tempfile
, O_RDONLY
| O_BINARY
, 0);
564 emacs_close (filefd
);
565 report_file_error ("Cannot re-open temporary file",
566 Fcons (build_string (tempfile
), Qnil
));
570 fd0
= -1; /* We are not going to read from tempfile. */
571 #else /* not MSDOS */
573 pid
= child_setup (filefd
, fd1
, fd_error
, new_argv
, 0, current_dir
);
574 #else /* not WINDOWSNT */
578 /* vfork, and prevent local vars from being clobbered by the vfork. */
580 Lisp_Object
volatile buffer_volatile
= buffer
;
581 Lisp_Object
volatile coding_systems_volatile
= coding_systems
;
582 Lisp_Object
volatile current_dir_volatile
= current_dir
;
583 bool volatile display_p_volatile
= display_p
;
584 bool volatile output_to_buffer_volatile
= output_to_buffer
;
585 bool volatile sa_must_free_volatile
= sa_must_free
;
586 int volatile fd0_volatile
= fd0
;
587 int volatile fd1_volatile
= fd1
;
588 int volatile fd_error_volatile
= fd_error
;
589 int volatile fd_output_volatile
= fd_output
;
590 int volatile filefd_volatile
= filefd
;
591 ptrdiff_t volatile count_volatile
= count
;
592 ptrdiff_t volatile sa_count_volatile
= sa_count
;
593 char **volatile new_argv_volatile
= new_argv
;
597 buffer
= buffer_volatile
;
598 coding_systems
= coding_systems_volatile
;
599 current_dir
= current_dir_volatile
;
600 display_p
= display_p_volatile
;
601 output_to_buffer
= output_to_buffer_volatile
;
602 sa_must_free
= sa_must_free_volatile
;
605 fd_error
= fd_error_volatile
;
606 fd_output
= fd_output_volatile
;
607 filefd
= filefd_volatile
;
608 count
= count_volatile
;
609 sa_count
= sa_count_volatile
;
610 new_argv
= new_argv_volatile
;
620 /* Emacs ignores SIGPIPE, but the child should not. */
621 signal (SIGPIPE
, SIG_DFL
);
623 child_setup (filefd
, fd1
, fd_error
, new_argv
, 0, current_dir
);
629 #endif /* not WINDOWSNT */
631 /* The MSDOS case did this already. */
633 emacs_close (fd_error
);
634 #endif /* not MSDOS */
636 /* Close most of our file descriptors, but not fd0
637 since we will use that to read input from. */
638 emacs_close (filefd
);
640 emacs_close (fd_output
);
641 if (fd1
>= 0 && fd1
!= fd_error
)
650 report_file_error ("Doing vfork", Qnil
);
653 if (INTEGERP (buffer
))
660 /* Enable sending signal if user quits below. */
661 call_process_exited
= 0;
664 /* MSDOS needs different cleanup information. */
665 cleanup_info_tail
= build_string (tempfile
? tempfile
: "");
667 cleanup_info_tail
= INTEGER_TO_CONS (pid
);
668 #endif /* not MSDOS */
669 record_unwind_protect (call_process_cleanup
,
670 Fcons (Fcurrent_buffer (),
671 Fcons (INTEGER_TO_CONS (fd0
),
672 cleanup_info_tail
)));
674 if (BUFFERP (buffer
))
675 Fset_buffer (buffer
);
679 /* If BUFFER is nil, we must read process output once and then
680 discard it, so setup coding system but with nil. */
681 setup_coding_system (Qnil
, &process_coding
);
682 process_coding
.dst_multibyte
= 0;
686 Lisp_Object val
, *args2
;
689 if (!NILP (Vcoding_system_for_read
))
690 val
= Vcoding_system_for_read
;
693 if (EQ (coding_systems
, Qt
))
697 SAFE_NALLOCA (args2
, 1, nargs
+ 1);
698 args2
[0] = Qcall_process
;
699 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
701 = Ffind_operation_coding_system (nargs
+ 1, args2
);
703 if (CONSP (coding_systems
))
704 val
= XCAR (coding_systems
);
705 else if (CONSP (Vdefault_process_coding_system
))
706 val
= XCAR (Vdefault_process_coding_system
);
710 Fcheck_coding_system (val
);
711 /* In unibyte mode, character code conversion should not take
712 place but EOL conversion should. So, setup raw-text or one
713 of the subsidiary according to the information just setup. */
714 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
))
716 val
= raw_text_coding_system (val
);
717 setup_coding_system (val
, &process_coding
);
718 process_coding
.dst_multibyte
719 = ! NILP (BVAR (current_buffer
, enable_multibyte_characters
));
721 process_coding
.src_multibyte
= 0;
726 if (output_to_buffer
)
728 enum { CALLPROC_BUFFER_SIZE_MIN
= 16 * 1024 };
729 enum { CALLPROC_BUFFER_SIZE_MAX
= 4 * CALLPROC_BUFFER_SIZE_MIN
};
730 char buf
[CALLPROC_BUFFER_SIZE_MAX
];
731 int bufsize
= CALLPROC_BUFFER_SIZE_MIN
;
734 EMACS_INT total_read
= 0;
736 bool display_on_the_fly
= display_p
;
737 struct coding_system saved_coding
;
739 saved_coding
= process_coding
;
742 /* Repeatedly read until we've filled as much as possible
743 of the buffer size we have. But don't read
744 less than 1024--save that for the next bufferful. */
746 while (nread
< bufsize
- 1024)
748 int this_read
= emacs_read (fd0
, buf
+ nread
,
756 process_coding
.mode
|= CODING_MODE_LAST_BLOCK
;
761 total_read
+= this_read
;
763 if (display_on_the_fly
)
767 /* Now NREAD is the total amount of data in the buffer. */
772 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
))
773 && ! CODING_MAY_REQUIRE_DECODING (&process_coding
))
774 insert_1_both (buf
, nread
, nread
, 0, 1, 0);
776 { /* We have to decode the input. */
778 ptrdiff_t count1
= SPECPDL_INDEX ();
780 XSETBUFFER (curbuf
, current_buffer
);
781 /* We cannot allow after-change-functions be run
782 during decoding, because that might modify the
783 buffer, while we rely on process_coding.produced to
784 faithfully reflect inserted text until we
785 TEMP_SET_PT_BOTH below. */
786 specbind (Qinhibit_modification_hooks
, Qt
);
787 decode_coding_c_string (&process_coding
,
788 (unsigned char *) buf
, nread
, curbuf
);
789 unbind_to (count1
, Qnil
);
790 if (display_on_the_fly
791 && CODING_REQUIRE_DETECTION (&saved_coding
)
792 && ! CODING_REQUIRE_DETECTION (&process_coding
))
794 /* We have detected some coding system. But,
795 there's a possibility that the detection was
796 done by insufficient data. So, we give up
797 displaying on the fly. */
798 if (process_coding
.produced
> 0)
799 del_range_2 (process_coding
.dst_pos
,
800 process_coding
.dst_pos_byte
,
801 process_coding
.dst_pos
802 + process_coding
.produced_char
,
803 process_coding
.dst_pos_byte
804 + process_coding
.produced
, 0);
805 display_on_the_fly
= 0;
806 process_coding
= saved_coding
;
808 /* This is to make the above condition always
809 fails in the future. */
810 saved_coding
.common_flags
811 &= ~CODING_REQUIRE_DETECTION_MASK
;
815 TEMP_SET_PT_BOTH (PT
+ process_coding
.produced_char
,
816 PT_BYTE
+ process_coding
.produced
);
817 carryover
= process_coding
.carryover_bytes
;
819 memcpy (buf
, process_coding
.carryover
,
820 process_coding
.carryover_bytes
);
824 if (process_coding
.mode
& CODING_MODE_LAST_BLOCK
)
827 /* Make the buffer bigger as we continue to read more data,
828 but not past CALLPROC_BUFFER_SIZE_MAX. */
829 if (bufsize
< CALLPROC_BUFFER_SIZE_MAX
&& total_read
> 32 * bufsize
)
830 if ((bufsize
*= 2) > CALLPROC_BUFFER_SIZE_MAX
)
831 bufsize
= CALLPROC_BUFFER_SIZE_MAX
;
836 prepare_menu_bars ();
838 redisplay_preserve_echo_area (1);
839 /* This variable might have been set to 0 for code
840 detection. In that case, we set it back to 1 because
841 we should have already detected a coding system. */
842 display_on_the_fly
= 1;
849 Vlast_coding_system_used
= CODING_ID_NAME (process_coding
.id
);
850 /* If the caller required, let the buffer inherit the
851 coding-system used to decode the process output. */
852 if (inherit_process_coding_system
)
853 call1 (intern ("after-insert-file-set-buffer-file-coding-system"),
854 make_number (total_read
));
858 /* Wait for it to terminate, unless it already has. */
859 if (output_to_buffer
)
860 wait_for_termination (pid
);
862 interruptible_wait_for_termination (pid
);
867 /* Don't kill any children that the subprocess may have left behind
869 call_process_exited
= 1;
872 unbind_to (count
, Qnil
);
874 if (synch_process_termsig
)
878 synchronize_system_messages_locale ();
879 signame
= strsignal (synch_process_termsig
);
884 synch_process_death
= signame
;
887 if (synch_process_death
)
888 return code_convert_string_norecord (build_string (synch_process_death
),
889 Vlocale_coding_system
, 0);
890 return make_number (synch_process_retcode
);
894 delete_temp_file (Lisp_Object name
)
896 /* Suppress jka-compr handling, etc. */
897 ptrdiff_t count
= SPECPDL_INDEX ();
898 specbind (intern ("file-name-handler-alist"), Qnil
);
899 internal_delete_file (name
);
900 unbind_to (count
, Qnil
);
904 DEFUN ("call-process-region", Fcall_process_region
, Scall_process_region
,
906 doc
: /* Send text from START to END to a synchronous process running PROGRAM.
907 The remaining arguments are optional.
908 Delete the text if fourth arg DELETE is non-nil.
910 Insert output in BUFFER before point; t means current buffer; nil for
911 BUFFER means discard it; 0 means discard and don't wait; and `(:file
912 FILE)', where FILE is a file name string, means that it should be
913 written to that file (if the file already exists it is overwritten).
914 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
915 REAL-BUFFER says what to do with standard output, as above,
916 while STDERR-FILE says what to do with standard error in the child.
917 STDERR-FILE may be nil (discard standard error output),
918 t (mix it with ordinary output), or a file name string.
920 Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted.
921 Remaining args are passed to PROGRAM at startup as command args.
923 If BUFFER is 0, `call-process-region' returns immediately with value nil.
924 Otherwise it waits for PROGRAM to terminate
925 and returns a numeric exit status or a signal description string.
926 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
928 usage: (call-process-region START END PROGRAM &optional DELETE BUFFER DISPLAY &rest ARGS) */)
929 (ptrdiff_t nargs
, Lisp_Object
*args
)
932 Lisp_Object filename_string
;
933 register Lisp_Object start
, end
;
934 ptrdiff_t count
= SPECPDL_INDEX ();
935 /* Qt denotes we have not yet called Ffind_operation_coding_system. */
936 Lisp_Object coding_systems
;
937 Lisp_Object val
, *args2
;
941 if (STRINGP (Vtemporary_file_directory
))
942 tmpdir
= Vtemporary_file_directory
;
946 if (getenv ("TMPDIR"))
947 tmpdir
= build_string (getenv ("TMPDIR"));
949 tmpdir
= build_string ("/tmp/");
952 if ((outf
= egetenv ("TMPDIR"))
953 || (outf
= egetenv ("TMP"))
954 || (outf
= egetenv ("TEMP")))
955 tmpdir
= build_string (outf
);
957 tmpdir
= Ffile_name_as_directory (build_string ("c:/temp"));
963 Lisp_Object pattern
= Fexpand_file_name (Vtemp_file_name_pattern
, tmpdir
);
964 char *tempfile
= SAFE_ALLOCA (SBYTES (pattern
) + 1);
965 memcpy (tempfile
, SDATA (pattern
), SBYTES (pattern
) + 1);
973 fd
= mkstemp (tempfile
);
976 report_file_error ("Failed to open temporary file",
977 Fcons (build_string (tempfile
), Qnil
));
985 filename_string
= build_string (tempfile
);
986 GCPRO1 (filename_string
);
992 /* Decide coding-system of the contents of the temporary file. */
993 if (!NILP (Vcoding_system_for_write
))
994 val
= Vcoding_system_for_write
;
995 else if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
1000 SAFE_NALLOCA (args2
, 1, nargs
+ 1);
1001 args2
[0] = Qcall_process_region
;
1002 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
1003 coding_systems
= Ffind_operation_coding_system (nargs
+ 1, args2
);
1004 val
= CONSP (coding_systems
) ? XCDR (coding_systems
) : Qnil
;
1007 val
= complement_process_encoding_system (val
);
1010 ptrdiff_t count1
= SPECPDL_INDEX ();
1012 specbind (intern ("coding-system-for-write"), val
);
1013 /* POSIX lets mk[s]temp use "."; don't invoke jka-compr if we
1014 happen to get a ".Z" suffix. */
1015 specbind (intern ("file-name-handler-alist"), Qnil
);
1016 Fwrite_region (start
, end
, filename_string
, Qnil
, Qlambda
, Qnil
, Qnil
);
1018 unbind_to (count1
, Qnil
);
1021 /* Note that Fcall_process takes care of binding
1022 coding-system-for-read. */
1024 record_unwind_protect (delete_temp_file
, filename_string
);
1026 if (nargs
> 3 && !NILP (args
[3]))
1027 Fdelete_region (start
, end
);
1039 args
[1] = filename_string
;
1041 RETURN_UNGCPRO (unbind_to (count
, Fcall_process (nargs
, args
)));
1045 static int relocate_fd (int fd
, int minfd
);
1049 add_env (char **env
, char **new_env
, char *string
)
1056 /* See if this string duplicates any string already in the env.
1057 If so, don't put it in.
1058 When an env var has multiple definitions,
1059 we keep the definition that comes first in process-environment. */
1060 for (ep
= env
; ok
&& ep
!= new_env
; ep
++)
1062 char *p
= *ep
, *q
= string
;
1068 /* The string is a lone variable name; keep it for now, we
1069 will remove it later. It is a placeholder for a
1070 variable that is not to be included in the environment. */
1078 *new_env
++ = string
;
1082 /* This is the last thing run in a newly forked inferior
1083 either synchronous or asynchronous.
1084 Copy descriptors IN, OUT and ERR as descriptors 0, 1 and 2.
1085 Initialize inferior's priority, pgrp, connected dir and environment.
1086 then exec another program based on new_argv.
1088 If SET_PGRP, put the subprocess into a separate process group.
1090 CURRENT_DIR is an elisp string giving the path of the current
1091 directory the subprocess should have. Since we can't really signal
1092 a decent error from within the child, this should be verified as an
1093 executable directory by the parent. */
1096 child_setup (int in
, int out
, int err
, char **new_argv
, bool set_pgrp
,
1097 Lisp_Object current_dir
)
1104 #endif /* WINDOWSNT */
1106 pid_t pid
= getpid ();
1108 /* Close Emacs's descriptors that this process should not have. */
1109 close_process_descs ();
1111 /* DOS_NT isn't in a vfork, so if we are in the middle of load-file,
1112 we will lose if we call close_load_descs here. */
1114 close_load_descs ();
1117 /* Note that use of alloca is always safe here. It's obvious for systems
1118 that do not have true vfork or that have true (stack) alloca.
1119 If using vfork and C_ALLOCA (when Emacs used to include
1120 src/alloca.c) it is safe because that changes the superior's
1121 static variables as if the superior had done alloca and will be
1122 cleaned up in the usual way. */
1124 register char *temp
;
1125 size_t i
; /* size_t, because ptrdiff_t might overflow here! */
1127 i
= SBYTES (current_dir
);
1129 /* MSDOS must have all environment variables malloc'ed, because
1130 low-level libc functions that launch subsidiary processes rely
1132 pwd_var
= xmalloc (i
+ 6);
1134 pwd_var
= alloca (i
+ 6);
1137 memcpy (pwd_var
, "PWD=", 4);
1138 memcpy (temp
, SDATA (current_dir
), i
);
1139 if (!IS_DIRECTORY_SEP (temp
[i
- 1])) temp
[i
++] = DIRECTORY_SEP
;
1143 /* We can't signal an Elisp error here; we're in a vfork. Since
1144 the callers check the current directory before forking, this
1145 should only return an error if the directory's permissions
1146 are changed between the check and this chdir, but we should
1148 if (chdir (temp
) < 0)
1151 /* Get past the drive letter, so that d:/ is left alone. */
1152 if (i
> 2 && IS_DEVICE_SEP (temp
[1]) && IS_DIRECTORY_SEP (temp
[2]))
1159 /* Strip trailing slashes for PWD, but leave "/" and "//" alone. */
1160 while (i
> 2 && IS_DIRECTORY_SEP (temp
[i
- 1]))
1164 /* Set `env' to a vector of the strings in the environment. */
1166 register Lisp_Object tem
;
1167 register char **new_env
;
1169 register int new_length
;
1170 Lisp_Object display
= Qnil
;
1174 for (tem
= Vprocess_environment
;
1175 CONSP (tem
) && STRINGP (XCAR (tem
));
1178 if (strncmp (SSDATA (XCAR (tem
)), "DISPLAY", 7) == 0
1179 && (SDATA (XCAR (tem
)) [7] == '\0'
1180 || SDATA (XCAR (tem
)) [7] == '='))
1181 /* DISPLAY is specified in process-environment. */
1186 /* If not provided yet, use the frame's DISPLAY. */
1189 Lisp_Object tmp
= Fframe_parameter (selected_frame
, Qdisplay
);
1190 if (!STRINGP (tmp
) && CONSP (Vinitial_environment
))
1191 /* If still not found, Look for DISPLAY in Vinitial_environment. */
1192 tmp
= Fgetenv_internal (build_string ("DISPLAY"),
1193 Vinitial_environment
);
1201 /* new_length + 2 to include PWD and terminating 0. */
1202 env
= new_env
= alloca ((new_length
+ 2) * sizeof *env
);
1203 /* If we have a PWD envvar, pass one down,
1204 but with corrected value. */
1205 if (egetenv ("PWD"))
1206 *new_env
++ = pwd_var
;
1208 if (STRINGP (display
))
1210 char *vdata
= alloca (sizeof "DISPLAY=" + SBYTES (display
));
1211 strcpy (vdata
, "DISPLAY=");
1212 strcat (vdata
, SSDATA (display
));
1213 new_env
= add_env (env
, new_env
, vdata
);
1217 for (tem
= Vprocess_environment
;
1218 CONSP (tem
) && STRINGP (XCAR (tem
));
1220 new_env
= add_env (env
, new_env
, SSDATA (XCAR (tem
)));
1224 /* Remove variable names without values. */
1228 while (*q
!= 0 && strchr (*q
, '=') == NULL
)
1238 prepare_standard_handles (in
, out
, err
, handles
);
1239 set_process_dir (SDATA (current_dir
));
1240 /* Spawn the child. (See ntproc.c:Spawnve). */
1241 cpid
= spawnve (_P_NOWAIT
, new_argv
[0], new_argv
, env
);
1242 reset_standard_handles (in
, out
, err
, handles
);
1244 /* An error occurred while trying to spawn the process. */
1245 report_file_error ("Spawning child process", Qnil
);
1248 #else /* not WINDOWSNT */
1249 /* Make sure that in, out, and err are not actually already in
1250 descriptors zero, one, or two; this could happen if Emacs is
1251 started with its standard in, out, or error closed, as might
1254 int oin
= in
, oout
= out
;
1256 /* We have to avoid relocating the same descriptor twice! */
1258 in
= relocate_fd (in
, 3);
1263 out
= relocate_fd (out
, 3);
1267 else if (err
== oout
)
1270 err
= relocate_fd (err
, 3);
1284 if (err
!= in
&& err
!= out
)
1290 execve (new_argv
[0], new_argv
, env
);
1292 emacs_write (1, "Can't exec program: ", 20);
1293 emacs_write (1, new_argv
[0], strlen (new_argv
[0]));
1294 emacs_write (1, "\n", 1);
1298 pid
= run_msdos_command (new_argv
, pwd_var
+ 4, in
, out
, err
, env
);
1301 /* An error occurred while trying to run the subprocess. */
1302 report_file_error ("Spawning child process", Qnil
);
1305 #endif /* not WINDOWSNT */
1309 /* Move the file descriptor FD so that its number is not less than MINFD.
1310 If the file descriptor is moved at all, the original is freed. */
1312 relocate_fd (int fd
, int minfd
)
1318 int new = fcntl (fd
, F_DUPFD
, minfd
);
1321 const char *message_1
= "Error while setting up child: ";
1322 const char *errmessage
= strerror (errno
);
1323 const char *message_2
= "\n";
1324 emacs_write (2, message_1
, strlen (message_1
));
1325 emacs_write (2, errmessage
, strlen (errmessage
));
1326 emacs_write (2, message_2
, strlen (message_2
));
1333 #endif /* not WINDOWSNT */
1336 getenv_internal_1 (const char *var
, ptrdiff_t varlen
, char **value
,
1337 ptrdiff_t *valuelen
, Lisp_Object env
)
1339 for (; CONSP (env
); env
= XCDR (env
))
1341 Lisp_Object entry
= XCAR (env
);
1343 && SBYTES (entry
) >= varlen
1345 /* NT environment variables are case insensitive. */
1346 && ! strnicmp (SDATA (entry
), var
, varlen
)
1347 #else /* not WINDOWSNT */
1348 && ! memcmp (SDATA (entry
), var
, varlen
)
1349 #endif /* not WINDOWSNT */
1352 if (SBYTES (entry
) > varlen
&& SREF (entry
, varlen
) == '=')
1354 *value
= SSDATA (entry
) + (varlen
+ 1);
1355 *valuelen
= SBYTES (entry
) - (varlen
+ 1);
1358 else if (SBYTES (entry
) == varlen
)
1360 /* Lone variable names in Vprocess_environment mean that
1361 variable should be removed from the environment. */
1371 getenv_internal (const char *var
, ptrdiff_t varlen
, char **value
,
1372 ptrdiff_t *valuelen
, Lisp_Object frame
)
1374 /* Try to find VAR in Vprocess_environment first. */
1375 if (getenv_internal_1 (var
, varlen
, value
, valuelen
,
1376 Vprocess_environment
))
1377 return *value
? 1 : 0;
1379 /* For DISPLAY try to get the values from the frame or the initial env. */
1380 if (strcmp (var
, "DISPLAY") == 0)
1383 = Fframe_parameter (NILP (frame
) ? selected_frame
: frame
, Qdisplay
);
1384 if (STRINGP (display
))
1386 *value
= SSDATA (display
);
1387 *valuelen
= SBYTES (display
);
1390 /* If still not found, Look for DISPLAY in Vinitial_environment. */
1391 if (getenv_internal_1 (var
, varlen
, value
, valuelen
,
1392 Vinitial_environment
))
1393 return *value
? 1 : 0;
1399 DEFUN ("getenv-internal", Fgetenv_internal
, Sgetenv_internal
, 1, 2, 0,
1400 doc
: /* Get the value of environment variable VARIABLE.
1401 VARIABLE should be a string. Value is nil if VARIABLE is undefined in
1402 the environment. Otherwise, value is a string.
1404 This function searches `process-environment' for VARIABLE.
1406 If optional parameter ENV is a list, then search this list instead of
1407 `process-environment', and return t when encountering a negative entry
1408 \(an entry for a variable with no value). */)
1409 (Lisp_Object variable
, Lisp_Object env
)
1414 CHECK_STRING (variable
);
1417 if (getenv_internal_1 (SSDATA (variable
), SBYTES (variable
),
1418 &value
, &valuelen
, env
))
1419 return value
? make_string (value
, valuelen
) : Qt
;
1423 else if (getenv_internal (SSDATA (variable
), SBYTES (variable
),
1424 &value
, &valuelen
, env
))
1425 return make_string (value
, valuelen
);
1430 /* A version of getenv that consults the Lisp environment lists,
1431 easily callable from C. */
1433 egetenv (const char *var
)
1438 if (getenv_internal (var
, strlen (var
), &value
, &valuelen
, Qnil
))
1445 /* This is run before init_cmdargs. */
1448 init_callproc_1 (void)
1451 const char *etc_dir
= ns_etc_directory ();
1452 const char *path_exec
= ns_exec_path ();
1455 Vdata_directory
= decode_env_path ("EMACSDATA",
1460 Vdata_directory
= Ffile_name_as_directory (Fcar (Vdata_directory
));
1462 Vdoc_directory
= decode_env_path ("EMACSDOC",
1467 Vdoc_directory
= Ffile_name_as_directory (Fcar (Vdoc_directory
));
1469 /* Check the EMACSPATH environment variable, defaulting to the
1470 PATH_EXEC path from epaths.h. */
1471 Vexec_path
= decode_env_path ("EMACSPATH",
1473 path_exec
? path_exec
:
1476 Vexec_directory
= Ffile_name_as_directory (Fcar (Vexec_path
));
1477 /* FIXME? For ns, path_exec should go at the front? */
1478 Vexec_path
= nconc2 (decode_env_path ("PATH", ""), Vexec_path
);
1481 /* This is run after init_cmdargs, when Vinstallation_directory is valid. */
1484 init_callproc (void)
1486 char *data_dir
= egetenv ("EMACSDATA");
1489 Lisp_Object tempdir
;
1493 const char *etc_dir
= ns_etc_directory ();
1496 data_dir
= alloca (strlen (etc_dir
) + 1);
1497 strcpy (data_dir
, etc_dir
);
1502 if (!NILP (Vinstallation_directory
))
1504 /* Add to the path the lib-src subdir of the installation dir. */
1506 tem
= Fexpand_file_name (build_string ("lib-src"),
1507 Vinstallation_directory
);
1509 /* MSDOS uses wrapped binaries, so don't do this. */
1510 if (NILP (Fmember (tem
, Vexec_path
)))
1513 const char *path_exec
= ns_exec_path ();
1515 Vexec_path
= decode_env_path ("EMACSPATH",
1517 path_exec
? path_exec
:
1520 Vexec_path
= Fcons (tem
, Vexec_path
);
1521 Vexec_path
= nconc2 (decode_env_path ("PATH", ""), Vexec_path
);
1524 Vexec_directory
= Ffile_name_as_directory (tem
);
1525 #endif /* not MSDOS */
1527 /* Maybe use ../etc as well as ../lib-src. */
1530 tem
= Fexpand_file_name (build_string ("etc"),
1531 Vinstallation_directory
);
1532 Vdoc_directory
= Ffile_name_as_directory (tem
);
1536 /* Look for the files that should be in etc. We don't use
1537 Vinstallation_directory, because these files are never installed
1538 near the executable, and they are never in the build
1539 directory when that's different from the source directory.
1541 Instead, if these files are not in the nominal place, we try the
1542 source directory. */
1545 Lisp_Object tem
, tem1
, srcdir
;
1547 srcdir
= Fexpand_file_name (build_string ("../src/"),
1548 build_string (PATH_DUMPLOADSEARCH
));
1549 tem
= Fexpand_file_name (build_string ("GNU"), Vdata_directory
);
1550 tem1
= Ffile_exists_p (tem
);
1551 if (!NILP (Fequal (srcdir
, Vinvocation_directory
)) || NILP (tem1
))
1554 newdir
= Fexpand_file_name (build_string ("../etc/"),
1555 build_string (PATH_DUMPLOADSEARCH
));
1556 tem
= Fexpand_file_name (build_string ("GNU"), newdir
);
1557 tem1
= Ffile_exists_p (tem
);
1559 Vdata_directory
= newdir
;
1567 tempdir
= Fdirectory_file_name (Vexec_directory
);
1568 if (! file_accessible_directory_p (SSDATA (tempdir
)))
1569 dir_warning ("arch-dependent data dir", Vexec_directory
);
1572 tempdir
= Fdirectory_file_name (Vdata_directory
);
1573 if (! file_accessible_directory_p (SSDATA (tempdir
)))
1574 dir_warning ("arch-independent data dir", Vdata_directory
);
1576 sh
= (char *) getenv ("SHELL");
1577 Vshell_file_name
= build_string (sh
? sh
: "/bin/sh");
1580 Vshared_game_score_directory
= Qnil
;
1582 Vshared_game_score_directory
= build_string (PATH_GAME
);
1583 if (NILP (Ffile_accessible_directory_p (Vshared_game_score_directory
)))
1584 Vshared_game_score_directory
= Qnil
;
1589 set_initial_environment (void)
1592 for (envp
= environ
; *envp
; envp
++)
1593 Vprocess_environment
= Fcons (build_string (*envp
),
1594 Vprocess_environment
);
1595 /* Ideally, the `copy' shouldn't be necessary, but it seems it's frequent
1596 to use `delete' and friends on process-environment. */
1597 Vinitial_environment
= Fcopy_sequence (Vprocess_environment
);
1601 syms_of_callproc (void)
1604 Vtemp_file_name_pattern
= build_string ("emacsXXXXXX");
1605 #elif defined (WINDOWSNT)
1606 Vtemp_file_name_pattern
= build_string ("emXXXXXX");
1608 Vtemp_file_name_pattern
= build_string ("detmp.XXX");
1610 staticpro (&Vtemp_file_name_pattern
);
1612 DEFVAR_LISP ("shell-file-name", Vshell_file_name
,
1613 doc
: /* File name to load inferior shells from.
1614 Initialized from the SHELL environment variable, or to a system-dependent
1615 default if SHELL is not set. */);
1617 DEFVAR_LISP ("exec-path", Vexec_path
,
1618 doc
: /* List of directories to search programs to run in subprocesses.
1619 Each element is a string (directory name) or nil (try default directory). */);
1621 DEFVAR_LISP ("exec-suffixes", Vexec_suffixes
,
1622 doc
: /* List of suffixes to try to find executable file names.
1623 Each element is a string. */);
1624 Vexec_suffixes
= Qnil
;
1626 DEFVAR_LISP ("exec-directory", Vexec_directory
,
1627 doc
: /* Directory for executables for Emacs to invoke.
1628 More generally, this includes any architecture-dependent files
1629 that are built and installed from the Emacs distribution. */);
1631 DEFVAR_LISP ("data-directory", Vdata_directory
,
1632 doc
: /* Directory of machine-independent files that come with GNU Emacs.
1633 These are files intended for Emacs to use while it runs. */);
1635 DEFVAR_LISP ("doc-directory", Vdoc_directory
,
1636 doc
: /* Directory containing the DOC file that comes with GNU Emacs.
1637 This is usually the same as `data-directory'. */);
1639 DEFVAR_LISP ("configure-info-directory", Vconfigure_info_directory
,
1640 doc
: /* For internal use by the build procedure only.
1641 This is the name of the directory in which the build procedure installed
1642 Emacs's info files; the default value for `Info-default-directory-list'
1644 Vconfigure_info_directory
= build_string (PATH_INFO
);
1646 DEFVAR_LISP ("shared-game-score-directory", Vshared_game_score_directory
,
1647 doc
: /* Directory of score files for games which come with GNU Emacs.
1648 If this variable is nil, then Emacs is unable to use a shared directory. */);
1650 Vshared_game_score_directory
= Qnil
;
1652 Vshared_game_score_directory
= build_string (PATH_GAME
);
1655 DEFVAR_LISP ("initial-environment", Vinitial_environment
,
1656 doc
: /* List of environment variables inherited from the parent process.
1657 Each element should be a string of the form ENVVARNAME=VALUE.
1658 The elements must normally be decoded (using `locale-coding-system') for use. */);
1659 Vinitial_environment
= Qnil
;
1661 DEFVAR_LISP ("process-environment", Vprocess_environment
,
1662 doc
: /* List of overridden environment variables for subprocesses to inherit.
1663 Each element should be a string of the form ENVVARNAME=VALUE.
1665 Entries in this list take precedence to those in the frame-local
1666 environments. Therefore, let-binding `process-environment' is an easy
1667 way to temporarily change the value of an environment variable,
1668 irrespective of where it comes from. To use `process-environment' to
1669 remove an environment variable, include only its name in the list,
1672 This variable is set to nil when Emacs starts.
1674 If multiple entries define the same variable, the first one always
1677 Non-ASCII characters are encoded according to the initial value of
1678 `locale-coding-system', i.e. the elements must normally be decoded for
1681 See `setenv' and `getenv'. */);
1682 Vprocess_environment
= Qnil
;
1684 defsubr (&Scall_process
);
1685 defsubr (&Sgetenv_internal
);
1686 defsubr (&Scall_process_region
);