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e4b265d8 | 1 | /* Copyright (C) 1995,1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc. |
0f2d19dd JB |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 | 41 | |
1bbd0b84 | 42 | |
0f2d19dd JB |
43 | \f |
44 | ||
8b50fe8e MV |
45 | /* Make GNU/Linux libc declare everything it has. */ |
46 | #define _GNU_SOURCE | |
47 | ||
0f2d19dd | 48 | #include <stdio.h> |
e6e2e95a MD |
49 | #include <errno.h> |
50 | ||
a0599745 MD |
51 | #include "libguile/_scm.h" |
52 | #include "libguile/fports.h" | |
53 | #include "libguile/scmsigs.h" | |
54 | #include "libguile/feature.h" | |
55 | #include "libguile/strings.h" | |
56 | #include "libguile/vectors.h" | |
c96d76b8 | 57 | #include "libguile/lang.h" |
a0599745 MD |
58 | |
59 | #include "libguile/validate.h" | |
60 | #include "libguile/posix.h" | |
0f2d19dd JB |
61 | \f |
62 | ||
02b754d3 GH |
63 | #ifdef HAVE_STRING_H |
64 | #include <string.h> | |
65 | #endif | |
0f2d19dd JB |
66 | #ifdef TIME_WITH_SYS_TIME |
67 | # include <sys/time.h> | |
68 | # include <time.h> | |
69 | #else | |
70 | # if HAVE_SYS_TIME_H | |
71 | # include <sys/time.h> | |
72 | # else | |
73 | # include <time.h> | |
74 | # endif | |
75 | #endif | |
76 | ||
77 | #ifdef HAVE_UNISTD_H | |
78 | #include <unistd.h> | |
95b88819 GH |
79 | #else |
80 | #ifndef ttyname | |
81 | extern char *ttyname(); | |
82 | #endif | |
0f2d19dd JB |
83 | #endif |
84 | ||
3594582b | 85 | #ifdef LIBC_H_WITH_UNISTD_H |
bab0f4e5 JB |
86 | #include <libc.h> |
87 | #endif | |
88 | ||
8cc71382 | 89 | #include <sys/types.h> |
0f2d19dd JB |
90 | #include <sys/stat.h> |
91 | #include <fcntl.h> | |
92 | ||
82893676 | 93 | #ifdef HAVE_PWD_H |
0f2d19dd | 94 | #include <pwd.h> |
82893676 MG |
95 | #endif |
96 | #ifdef HAVE_IO_H | |
97 | #include <io.h> | |
98 | #endif | |
f87c105a | 99 | #ifdef HAVE_WINSOCK2_H |
82893676 MG |
100 | #include <winsock2.h> |
101 | #endif | |
102 | ||
103 | #ifdef __MINGW32__ | |
104 | /* Some defines for Windows here. */ | |
7beabedb | 105 | # include <process.h> |
82893676 MG |
106 | # define pipe(fd) _pipe (fd, 256, O_BINARY) |
107 | #endif /* __MINGW32__ */ | |
0f2d19dd JB |
108 | |
109 | #if HAVE_SYS_WAIT_H | |
110 | # include <sys/wait.h> | |
111 | #endif | |
112 | #ifndef WEXITSTATUS | |
113 | # define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) | |
114 | #endif | |
115 | #ifndef WIFEXITED | |
116 | # define WIFEXITED(stat_val) (((stat_val) & 255) == 0) | |
117 | #endif | |
118 | ||
119 | #include <signal.h> | |
120 | ||
0f2d19dd JB |
121 | extern char ** environ; |
122 | ||
82893676 | 123 | #ifdef HAVE_GRP_H |
0f2d19dd | 124 | #include <grp.h> |
82893676 MG |
125 | #endif |
126 | #ifdef HAVE_SYS_UTSNAME_H | |
0f2d19dd | 127 | #include <sys/utsname.h> |
82893676 | 128 | #endif |
0f2d19dd | 129 | |
0f2d19dd JB |
130 | #ifdef HAVE_SETLOCALE |
131 | #include <locale.h> | |
132 | #endif | |
133 | ||
94e6d793 MG |
134 | #if HAVE_LIBCRYPT && HAVE_CRYPT_H |
135 | # include <crypt.h> | |
136 | #endif | |
137 | ||
138 | #if HAVE_SYS_RESOURCE_H | |
139 | # include <sys/resource.h> | |
140 | #endif | |
141 | ||
142 | #if HAVE_SYS_FILE_H | |
143 | # include <sys/file.h> | |
144 | #endif | |
145 | ||
bab0f4e5 JB |
146 | /* Some Unix systems don't define these. CPP hair is dangerous, but |
147 | this seems safe enough... */ | |
148 | #ifndef R_OK | |
149 | #define R_OK 4 | |
150 | #endif | |
151 | ||
152 | #ifndef W_OK | |
153 | #define W_OK 2 | |
154 | #endif | |
155 | ||
156 | #ifndef X_OK | |
157 | #define X_OK 1 | |
158 | #endif | |
159 | ||
160 | #ifndef F_OK | |
161 | #define F_OK 0 | |
162 | #endif | |
398609a5 JB |
163 | |
164 | /* On NextStep, <utime.h> doesn't define struct utime, unless we | |
165 | #define _POSIX_SOURCE before #including it. I think this is less | |
166 | of a kludge than defining struct utimbuf ourselves. */ | |
167 | #ifdef UTIMBUF_NEEDS_POSIX | |
168 | #define _POSIX_SOURCE | |
169 | #endif | |
170 | ||
171 | #ifdef HAVE_SYS_UTIME_H | |
172 | #include <sys/utime.h> | |
173 | #endif | |
174 | ||
175 | #ifdef HAVE_UTIME_H | |
176 | #include <utime.h> | |
177 | #endif | |
178 | ||
179 | /* Please don't add any more #includes or #defines here. The hack | |
180 | above means that _POSIX_SOURCE may be #defined, which will | |
181 | encourage header files to do strange things. */ | |
182 | ||
0f2d19dd | 183 | \f |
bc45012d JB |
184 | SCM_SYMBOL (sym_read_pipe, "read pipe"); |
185 | SCM_SYMBOL (sym_write_pipe, "write pipe"); | |
0f2d19dd | 186 | |
a1ec6916 | 187 | SCM_DEFINE (scm_pipe, "pipe", 0, 0, 0, |
1bbd0b84 | 188 | (), |
1e6808ea MG |
189 | "Return a newly created pipe: a pair of ports which are linked\n" |
190 | "together on the local machine. The @emph{car} is the input\n" | |
191 | "port and the @emph{cdr} is the output port. Data written (and\n" | |
192 | "flushed) to the output port can be read from the input port.\n" | |
193 | "Pipes are commonly used for communication with a newly forked\n" | |
194 | "child process. The need to flush the output port can be\n" | |
195 | "avoided by making it unbuffered using @code{setvbuf}.\n" | |
196 | "\n" | |
197 | "Writes occur atomically provided the size of the data in bytes\n" | |
198 | "is not greater than the value of @code{PIPE_BUF}. Note that\n" | |
199 | "the output port is likely to block if too much data (typically\n" | |
200 | "equal to @code{PIPE_BUF}) has been written but not yet read\n" | |
201 | "from the input port.") | |
1bbd0b84 | 202 | #define FUNC_NAME s_scm_pipe |
0f2d19dd JB |
203 | { |
204 | int fd[2], rv; | |
0f2d19dd | 205 | SCM p_rd, p_wt; |
02b754d3 | 206 | |
0f2d19dd JB |
207 | rv = pipe (fd); |
208 | if (rv) | |
1bbd0b84 | 209 | SCM_SYSERROR; |
ee149d03 JB |
210 | |
211 | p_rd = scm_fdes_to_port (fd[0], "r", sym_read_pipe); | |
212 | p_wt = scm_fdes_to_port (fd[1], "w", sym_write_pipe); | |
0f2d19dd JB |
213 | return scm_cons (p_rd, p_wt); |
214 | } | |
1bbd0b84 | 215 | #undef FUNC_NAME |
0f2d19dd JB |
216 | |
217 | ||
0e958795 | 218 | #ifdef HAVE_GETGROUPS |
a1ec6916 | 219 | SCM_DEFINE (scm_getgroups, "getgroups", 0, 0, 0, |
1bbd0b84 | 220 | (), |
1e6808ea | 221 | "Return a vector of integers representing the current\n" |
bb2c02f2 | 222 | "supplementary group IDs.") |
1bbd0b84 | 223 | #define FUNC_NAME s_scm_getgroups |
0f2d19dd | 224 | { |
1d1559ce | 225 | SCM result; |
66460dfb | 226 | int ngroups; |
1be6b49c | 227 | size_t size; |
66460dfb DH |
228 | GETGROUPS_T *groups; |
229 | ||
230 | ngroups = getgroups (0, NULL); | |
231 | if (ngroups <= 0) | |
1bbd0b84 | 232 | SCM_SYSERROR; |
66460dfb DH |
233 | |
234 | size = ngroups * sizeof (GETGROUPS_T); | |
4c9419ac | 235 | groups = scm_malloc (size); |
66460dfb DH |
236 | getgroups (ngroups, groups); |
237 | ||
1d1559ce | 238 | result = scm_c_make_vector (ngroups, SCM_UNDEFINED); |
66460dfb | 239 | |
34d19ef6 | 240 | { |
1d1559ce | 241 | SCM * ve = SCM_WRITABLE_VELTS(result); |
34d19ef6 HWN |
242 | |
243 | while (--ngroups >= 0) | |
244 | ve[ngroups] = SCM_MAKINUM (groups [ngroups]); | |
245 | } | |
4c9419ac | 246 | free (groups); |
1d1559ce | 247 | return result; |
1bbd0b84 GB |
248 | } |
249 | #undef FUNC_NAME | |
0e958795 | 250 | #endif |
0f2d19dd | 251 | |
82893676 | 252 | #ifdef HAVE_GETPWENT |
a1ec6916 | 253 | SCM_DEFINE (scm_getpwuid, "getpw", 0, 1, 0, |
1bbd0b84 | 254 | (SCM user), |
b380b885 MD |
255 | "Look up an entry in the user database. @var{obj} can be an integer,\n" |
256 | "a string, or omitted, giving the behaviour of getpwuid, getpwnam\n" | |
257 | "or getpwent respectively.") | |
1bbd0b84 | 258 | #define FUNC_NAME s_scm_getpwuid |
0f2d19dd | 259 | { |
0f2d19dd | 260 | struct passwd *entry; |
0f2d19dd | 261 | |
1d1559ce | 262 | SCM result = scm_c_make_vector (7, SCM_UNSPECIFIED); |
0f2d19dd JB |
263 | if (SCM_UNBNDP (user) || SCM_FALSEP (user)) |
264 | { | |
0f2d19dd | 265 | SCM_SYSCALL (entry = getpwent ()); |
3d781d49 JB |
266 | if (! entry) |
267 | { | |
3d781d49 JB |
268 | return SCM_BOOL_F; |
269 | } | |
0f2d19dd JB |
270 | } |
271 | else if (SCM_INUMP (user)) | |
272 | { | |
0f2d19dd JB |
273 | entry = getpwuid (SCM_INUM (user)); |
274 | } | |
275 | else | |
276 | { | |
a6d9e5ab | 277 | SCM_VALIDATE_STRING (1, user); |
a6d9e5ab | 278 | entry = getpwnam (SCM_STRING_CHARS (user)); |
0f2d19dd JB |
279 | } |
280 | if (!entry) | |
1bbd0b84 | 281 | SCM_MISC_ERROR ("entry not found", SCM_EOL); |
02b754d3 | 282 | |
1d1559ce HWN |
283 | SCM_VECTOR_SET(result, 0, scm_makfrom0str (entry->pw_name)); |
284 | SCM_VECTOR_SET(result, 1, scm_makfrom0str (entry->pw_passwd)); | |
285 | SCM_VECTOR_SET(result, 2, scm_ulong2num ((unsigned long) entry->pw_uid)); | |
286 | SCM_VECTOR_SET(result, 3, scm_ulong2num ((unsigned long) entry->pw_gid)); | |
287 | SCM_VECTOR_SET(result, 4, scm_makfrom0str (entry->pw_gecos)); | |
0f2d19dd | 288 | if (!entry->pw_dir) |
1d1559ce | 289 | SCM_VECTOR_SET(result, 5, scm_makfrom0str ("")); |
0f2d19dd | 290 | else |
1d1559ce | 291 | SCM_VECTOR_SET(result, 5, scm_makfrom0str (entry->pw_dir)); |
0f2d19dd | 292 | if (!entry->pw_shell) |
1d1559ce | 293 | SCM_VECTOR_SET(result, 6, scm_makfrom0str ("")); |
0f2d19dd | 294 | else |
1d1559ce HWN |
295 | SCM_VECTOR_SET(result, 6, scm_makfrom0str (entry->pw_shell)); |
296 | return result; | |
0f2d19dd | 297 | } |
1bbd0b84 | 298 | #undef FUNC_NAME |
82893676 | 299 | #endif /* HAVE_GETPWENT */ |
0f2d19dd JB |
300 | |
301 | ||
0e958795 | 302 | #ifdef HAVE_SETPWENT |
a1ec6916 | 303 | SCM_DEFINE (scm_setpwent, "setpw", 0, 1, 0, |
1bbd0b84 | 304 | (SCM arg), |
b380b885 MD |
305 | "If called with a true argument, initialize or reset the password data\n" |
306 | "stream. Otherwise, close the stream. The @code{setpwent} and\n" | |
307 | "@code{endpwent} procedures are implemented on top of this.") | |
1bbd0b84 | 308 | #define FUNC_NAME s_scm_setpwent |
0f2d19dd JB |
309 | { |
310 | if (SCM_UNBNDP (arg) || SCM_FALSEP (arg)) | |
311 | endpwent (); | |
312 | else | |
313 | setpwent (); | |
314 | return SCM_UNSPECIFIED; | |
315 | } | |
1bbd0b84 | 316 | #undef FUNC_NAME |
0e958795 | 317 | #endif |
0f2d19dd JB |
318 | |
319 | ||
82893676 | 320 | #ifdef HAVE_GETGRENT |
0f2d19dd | 321 | /* Combines getgrgid and getgrnam. */ |
a1ec6916 | 322 | SCM_DEFINE (scm_getgrgid, "getgr", 0, 1, 0, |
1bbd0b84 | 323 | (SCM name), |
b380b885 MD |
324 | "Look up an entry in the group database. @var{obj} can be an integer,\n" |
325 | "a string, or omitted, giving the behaviour of getgrgid, getgrnam\n" | |
326 | "or getgrent respectively.") | |
1bbd0b84 | 327 | #define FUNC_NAME s_scm_getgrgid |
0f2d19dd | 328 | { |
0f2d19dd | 329 | struct group *entry; |
1d1559ce | 330 | SCM result = scm_c_make_vector (4, SCM_UNSPECIFIED); |
34d19ef6 | 331 | |
4260a7fc | 332 | if (SCM_UNBNDP (name) || SCM_FALSEP (name)) |
3d781d49 JB |
333 | { |
334 | SCM_SYSCALL (entry = getgrent ()); | |
335 | if (! entry) | |
336 | { | |
3d781d49 JB |
337 | return SCM_BOOL_F; |
338 | } | |
339 | } | |
0f2d19dd JB |
340 | else if (SCM_INUMP (name)) |
341 | SCM_SYSCALL (entry = getgrgid (SCM_INUM (name))); | |
342 | else | |
343 | { | |
a6d9e5ab | 344 | SCM_VALIDATE_STRING (1, name); |
a6d9e5ab | 345 | SCM_SYSCALL (entry = getgrnam (SCM_STRING_CHARS (name))); |
0f2d19dd JB |
346 | } |
347 | if (!entry) | |
1bbd0b84 | 348 | SCM_SYSERROR; |
02b754d3 | 349 | |
1d1559ce HWN |
350 | SCM_VECTOR_SET(result, 0, scm_makfrom0str (entry->gr_name)); |
351 | SCM_VECTOR_SET(result, 1, scm_makfrom0str (entry->gr_passwd)); | |
352 | SCM_VECTOR_SET(result, 2, scm_ulong2num ((unsigned long) entry->gr_gid)); | |
353 | SCM_VECTOR_SET(result, 3, scm_makfromstrs (-1, entry->gr_mem)); | |
354 | return result; | |
0f2d19dd | 355 | } |
1bbd0b84 | 356 | #undef FUNC_NAME |
0f2d19dd JB |
357 | |
358 | ||
359 | ||
a1ec6916 | 360 | SCM_DEFINE (scm_setgrent, "setgr", 0, 1, 0, |
1bbd0b84 | 361 | (SCM arg), |
b380b885 MD |
362 | "If called with a true argument, initialize or reset the group data\n" |
363 | "stream. Otherwise, close the stream. The @code{setgrent} and\n" | |
364 | "@code{endgrent} procedures are implemented on top of this.") | |
1bbd0b84 | 365 | #define FUNC_NAME s_scm_setgrent |
0f2d19dd JB |
366 | { |
367 | if (SCM_UNBNDP (arg) || SCM_FALSEP (arg)) | |
368 | endgrent (); | |
369 | else | |
370 | setgrent (); | |
371 | return SCM_UNSPECIFIED; | |
372 | } | |
1bbd0b84 | 373 | #undef FUNC_NAME |
82893676 | 374 | #endif /* HAVE_GETGRENT */ |
0f2d19dd JB |
375 | |
376 | ||
a1ec6916 | 377 | SCM_DEFINE (scm_kill, "kill", 2, 0, 0, |
1bbd0b84 | 378 | (SCM pid, SCM sig), |
b380b885 MD |
379 | "Sends a signal to the specified process or group of processes.\n\n" |
380 | "@var{pid} specifies the processes to which the signal is sent:\n\n" | |
381 | "@table @r\n" | |
382 | "@item @var{pid} greater than 0\n" | |
383 | "The process whose identifier is @var{pid}.\n" | |
384 | "@item @var{pid} equal to 0\n" | |
385 | "All processes in the current process group.\n" | |
386 | "@item @var{pid} less than -1\n" | |
387 | "The process group whose identifier is -@var{pid}\n" | |
388 | "@item @var{pid} equal to -1\n" | |
389 | "If the process is privileged, all processes except for some special\n" | |
390 | "system processes. Otherwise, all processes with the current effective\n" | |
391 | "user ID.\n" | |
392 | "@end table\n\n" | |
393 | "@var{sig} should be specified using a variable corresponding to\n" | |
394 | "the Unix symbolic name, e.g.,\n\n" | |
395 | "@defvar SIGHUP\n" | |
396 | "Hang-up signal.\n" | |
397 | "@end defvar\n\n" | |
398 | "@defvar SIGINT\n" | |
399 | "Interrupt signal.\n" | |
400 | "@end defvar") | |
1bbd0b84 | 401 | #define FUNC_NAME s_scm_kill |
0f2d19dd | 402 | { |
34d19ef6 HWN |
403 | SCM_VALIDATE_INUM (1, pid); |
404 | SCM_VALIDATE_INUM (2, sig); | |
0f2d19dd | 405 | /* Signal values are interned in scm_init_posix(). */ |
82893676 | 406 | #ifdef HAVE_KILL |
02b754d3 | 407 | if (kill ((int) SCM_INUM (pid), (int) SCM_INUM (sig)) != 0) |
82893676 MG |
408 | #else |
409 | if ((int) SCM_INUM (pid) == getpid ()) | |
410 | if (raise ((int) SCM_INUM (sig)) != 0) | |
411 | #endif | |
412 | SCM_SYSERROR; | |
02b754d3 | 413 | return SCM_UNSPECIFIED; |
0f2d19dd | 414 | } |
1bbd0b84 | 415 | #undef FUNC_NAME |
0f2d19dd | 416 | |
d00ae47e | 417 | #ifdef HAVE_WAITPID |
a1ec6916 | 418 | SCM_DEFINE (scm_waitpid, "waitpid", 1, 1, 0, |
1bbd0b84 | 419 | (SCM pid, SCM options), |
b380b885 MD |
420 | "This procedure collects status information from a child process which\n" |
421 | "has terminated or (optionally) stopped. Normally it will\n" | |
422 | "suspend the calling process until this can be done. If more than one\n" | |
423 | "child process is eligible then one will be chosen by the operating system.\n\n" | |
424 | "The value of @var{pid} determines the behaviour:\n\n" | |
425 | "@table @r\n" | |
426 | "@item @var{pid} greater than 0\n" | |
427 | "Request status information from the specified child process.\n" | |
428 | "@item @var{pid} equal to -1 or WAIT_ANY\n" | |
429 | "Request status information for any child process.\n" | |
430 | "@item @var{pid} equal to 0 or WAIT_MYPGRP\n" | |
431 | "Request status information for any child process in the current process\n" | |
432 | "group.\n" | |
433 | "@item @var{pid} less than -1\n" | |
434 | "Request status information for any child process whose process group ID\n" | |
435 | "is -@var{PID}.\n" | |
436 | "@end table\n\n" | |
437 | "The @var{options} argument, if supplied, should be the bitwise OR of the\n" | |
438 | "values of zero or more of the following variables:\n\n" | |
439 | "@defvar WNOHANG\n" | |
440 | "Return immediately even if there are no child processes to be collected.\n" | |
441 | "@end defvar\n\n" | |
442 | "@defvar WUNTRACED\n" | |
443 | "Report status information for stopped processes as well as terminated\n" | |
444 | "processes.\n" | |
445 | "@end defvar\n\n" | |
446 | "The return value is a pair containing:\n\n" | |
447 | "@enumerate\n" | |
448 | "@item\n" | |
449 | "The process ID of the child process, or 0 if @code{WNOHANG} was\n" | |
450 | "specified and no process was collected.\n" | |
451 | "@item\n" | |
452 | "The integer status value.\n" | |
453 | "@end enumerate") | |
1bbd0b84 | 454 | #define FUNC_NAME s_scm_waitpid |
0f2d19dd JB |
455 | { |
456 | int i; | |
457 | int status; | |
458 | int ioptions; | |
34d19ef6 | 459 | SCM_VALIDATE_INUM (1, pid); |
0f2d19dd JB |
460 | if (SCM_UNBNDP (options)) |
461 | ioptions = 0; | |
462 | else | |
463 | { | |
34d19ef6 | 464 | SCM_VALIDATE_INUM (2, options); |
0f2d19dd JB |
465 | /* Flags are interned in scm_init_posix. */ |
466 | ioptions = SCM_INUM (options); | |
467 | } | |
468 | SCM_SYSCALL (i = waitpid (SCM_INUM (pid), &status, ioptions)); | |
02b754d3 | 469 | if (i == -1) |
1bbd0b84 | 470 | SCM_SYSERROR; |
02b754d3 | 471 | return scm_cons (SCM_MAKINUM (0L + i), SCM_MAKINUM (0L + status)); |
0f2d19dd | 472 | } |
1bbd0b84 | 473 | #undef FUNC_NAME |
d00ae47e | 474 | #endif /* HAVE_WAITPID */ |
0f2d19dd | 475 | |
82893676 | 476 | #ifndef __MINGW32__ |
a1ec6916 | 477 | SCM_DEFINE (scm_status_exit_val, "status:exit-val", 1, 0, 0, |
1bbd0b84 | 478 | (SCM status), |
1e6808ea MG |
479 | "Return the exit status value, as would be set if a process\n" |
480 | "ended normally through a call to @code{exit} or @code{_exit},\n" | |
481 | "if any, otherwise @code{#f}.") | |
1bbd0b84 | 482 | #define FUNC_NAME s_scm_status_exit_val |
67ec3667 | 483 | { |
e67dc2be JB |
484 | int lstatus; |
485 | ||
34d19ef6 | 486 | SCM_VALIDATE_INUM (1, status); |
e67dc2be JB |
487 | |
488 | /* On Ultrix, the WIF... macros assume their argument is an lvalue; | |
489 | go figure. SCM_INUM does not yield an lvalue. */ | |
490 | lstatus = SCM_INUM (status); | |
491 | if (WIFEXITED (lstatus)) | |
492 | return (SCM_MAKINUM (WEXITSTATUS (lstatus))); | |
67ec3667 GH |
493 | else |
494 | return SCM_BOOL_F; | |
495 | } | |
1bbd0b84 | 496 | #undef FUNC_NAME |
e67dc2be | 497 | |
a1ec6916 | 498 | SCM_DEFINE (scm_status_term_sig, "status:term-sig", 1, 0, 0, |
1bbd0b84 | 499 | (SCM status), |
1e6808ea MG |
500 | "Return the signal number which terminated the process, if any,\n" |
501 | "otherwise @code{#f}.") | |
1bbd0b84 | 502 | #define FUNC_NAME s_scm_status_term_sig |
67ec3667 | 503 | { |
e67dc2be JB |
504 | int lstatus; |
505 | ||
34d19ef6 | 506 | SCM_VALIDATE_INUM (1, status); |
e67dc2be JB |
507 | |
508 | lstatus = SCM_INUM (status); | |
509 | if (WIFSIGNALED (lstatus)) | |
510 | return SCM_MAKINUM (WTERMSIG (lstatus)); | |
67ec3667 GH |
511 | else |
512 | return SCM_BOOL_F; | |
513 | } | |
1bbd0b84 | 514 | #undef FUNC_NAME |
0f2d19dd | 515 | |
a1ec6916 | 516 | SCM_DEFINE (scm_status_stop_sig, "status:stop-sig", 1, 0, 0, |
1bbd0b84 | 517 | (SCM status), |
1e6808ea MG |
518 | "Return the signal number which stopped the process, if any,\n" |
519 | "otherwise @code{#f}.") | |
1bbd0b84 | 520 | #define FUNC_NAME s_scm_status_stop_sig |
67ec3667 | 521 | { |
e67dc2be JB |
522 | int lstatus; |
523 | ||
34d19ef6 | 524 | SCM_VALIDATE_INUM (1, status); |
e67dc2be JB |
525 | |
526 | lstatus = SCM_INUM (status); | |
527 | if (WIFSTOPPED (lstatus)) | |
528 | return SCM_MAKINUM (WSTOPSIG (lstatus)); | |
67ec3667 GH |
529 | else |
530 | return SCM_BOOL_F; | |
531 | } | |
1bbd0b84 | 532 | #undef FUNC_NAME |
82893676 | 533 | #endif /* __MINGW32__ */ |
0f2d19dd | 534 | |
82893676 | 535 | #ifdef HAVE_GETPPID |
a1ec6916 | 536 | SCM_DEFINE (scm_getppid, "getppid", 0, 0, 0, |
1bbd0b84 | 537 | (), |
1e6808ea MG |
538 | "Return an integer representing the process ID of the parent\n" |
539 | "process.") | |
1bbd0b84 | 540 | #define FUNC_NAME s_scm_getppid |
0f2d19dd JB |
541 | { |
542 | return SCM_MAKINUM (0L + getppid ()); | |
543 | } | |
1bbd0b84 | 544 | #undef FUNC_NAME |
82893676 | 545 | #endif /* HAVE_GETPPID */ |
0f2d19dd JB |
546 | |
547 | ||
82893676 | 548 | #ifndef __MINGW32__ |
a1ec6916 | 549 | SCM_DEFINE (scm_getuid, "getuid", 0, 0, 0, |
1bbd0b84 | 550 | (), |
1e6808ea | 551 | "Return an integer representing the current real user ID.") |
1bbd0b84 | 552 | #define FUNC_NAME s_scm_getuid |
0f2d19dd JB |
553 | { |
554 | return SCM_MAKINUM (0L + getuid ()); | |
555 | } | |
1bbd0b84 | 556 | #undef FUNC_NAME |
0f2d19dd JB |
557 | |
558 | ||
559 | ||
a1ec6916 | 560 | SCM_DEFINE (scm_getgid, "getgid", 0, 0, 0, |
1bbd0b84 | 561 | (), |
1e6808ea | 562 | "Return an integer representing the current real group ID.") |
1bbd0b84 | 563 | #define FUNC_NAME s_scm_getgid |
0f2d19dd JB |
564 | { |
565 | return SCM_MAKINUM (0L + getgid ()); | |
566 | } | |
1bbd0b84 | 567 | #undef FUNC_NAME |
0f2d19dd JB |
568 | |
569 | ||
570 | ||
a1ec6916 | 571 | SCM_DEFINE (scm_geteuid, "geteuid", 0, 0, 0, |
1bbd0b84 | 572 | (), |
1e6808ea | 573 | "Return an integer representing the current effective user ID.\n" |
b380b885 | 574 | "If the system does not support effective IDs, then the real ID\n" |
480fa28d | 575 | "is returned. @code{(provided? 'EIDs)} reports whether the\n" |
1e6808ea | 576 | "system supports effective IDs.") |
1bbd0b84 | 577 | #define FUNC_NAME s_scm_geteuid |
0f2d19dd JB |
578 | { |
579 | #ifdef HAVE_GETEUID | |
580 | return SCM_MAKINUM (0L + geteuid ()); | |
581 | #else | |
582 | return SCM_MAKINUM (0L + getuid ()); | |
583 | #endif | |
584 | } | |
1bbd0b84 | 585 | #undef FUNC_NAME |
0f2d19dd JB |
586 | |
587 | ||
a1ec6916 | 588 | SCM_DEFINE (scm_getegid, "getegid", 0, 0, 0, |
1bbd0b84 | 589 | (), |
1e6808ea | 590 | "Return an integer representing the current effective group ID.\n" |
b380b885 | 591 | "If the system does not support effective IDs, then the real ID\n" |
480fa28d | 592 | "is returned. @code{(provided? 'EIDs)} reports whether the\n" |
1e6808ea | 593 | "system supports effective IDs.") |
1bbd0b84 | 594 | #define FUNC_NAME s_scm_getegid |
0f2d19dd JB |
595 | { |
596 | #ifdef HAVE_GETEUID | |
597 | return SCM_MAKINUM (0L + getegid ()); | |
598 | #else | |
599 | return SCM_MAKINUM (0L + getgid ()); | |
600 | #endif | |
601 | } | |
1bbd0b84 | 602 | #undef FUNC_NAME |
0f2d19dd JB |
603 | |
604 | ||
a1ec6916 | 605 | SCM_DEFINE (scm_setuid, "setuid", 1, 0, 0, |
1bbd0b84 | 606 | (SCM id), |
b380b885 MD |
607 | "Sets both the real and effective user IDs to the integer @var{id}, provided\n" |
608 | "the process has appropriate privileges.\n" | |
609 | "The return value is unspecified.") | |
1bbd0b84 | 610 | #define FUNC_NAME s_scm_setuid |
0f2d19dd | 611 | { |
34d19ef6 | 612 | SCM_VALIDATE_INUM (1, id); |
02b754d3 | 613 | if (setuid (SCM_INUM (id)) != 0) |
1bbd0b84 | 614 | SCM_SYSERROR; |
02b754d3 | 615 | return SCM_UNSPECIFIED; |
0f2d19dd | 616 | } |
1bbd0b84 | 617 | #undef FUNC_NAME |
0f2d19dd | 618 | |
a1ec6916 | 619 | SCM_DEFINE (scm_setgid, "setgid", 1, 0, 0, |
1bbd0b84 | 620 | (SCM id), |
b380b885 MD |
621 | "Sets both the real and effective group IDs to the integer @var{id}, provided\n" |
622 | "the process has appropriate privileges.\n" | |
623 | "The return value is unspecified.") | |
1bbd0b84 | 624 | #define FUNC_NAME s_scm_setgid |
0f2d19dd | 625 | { |
34d19ef6 | 626 | SCM_VALIDATE_INUM (1, id); |
02b754d3 | 627 | if (setgid (SCM_INUM (id)) != 0) |
1bbd0b84 | 628 | SCM_SYSERROR; |
02b754d3 | 629 | return SCM_UNSPECIFIED; |
0f2d19dd | 630 | } |
1bbd0b84 | 631 | #undef FUNC_NAME |
0f2d19dd | 632 | |
a1ec6916 | 633 | SCM_DEFINE (scm_seteuid, "seteuid", 1, 0, 0, |
1bbd0b84 | 634 | (SCM id), |
b380b885 MD |
635 | "Sets the effective user ID to the integer @var{id}, provided the process\n" |
636 | "has appropriate privileges. If effective IDs are not supported, the\n" | |
480fa28d | 637 | "real ID is set instead -- @code{(provided? 'EIDs)} reports whether the\n" |
b380b885 MD |
638 | "system supports effective IDs.\n" |
639 | "The return value is unspecified.") | |
1bbd0b84 | 640 | #define FUNC_NAME s_scm_seteuid |
0f2d19dd | 641 | { |
02b754d3 GH |
642 | int rv; |
643 | ||
34d19ef6 | 644 | SCM_VALIDATE_INUM (1, id); |
0f2d19dd | 645 | #ifdef HAVE_SETEUID |
02b754d3 | 646 | rv = seteuid (SCM_INUM (id)); |
0f2d19dd | 647 | #else |
02b754d3 | 648 | rv = setuid (SCM_INUM (id)); |
0f2d19dd | 649 | #endif |
02b754d3 | 650 | if (rv != 0) |
1bbd0b84 | 651 | SCM_SYSERROR; |
02b754d3 | 652 | return SCM_UNSPECIFIED; |
0f2d19dd | 653 | } |
1bbd0b84 | 654 | #undef FUNC_NAME |
7beabedb MG |
655 | #endif /* __MINGW32__ */ |
656 | ||
0f2d19dd | 657 | |
0e958795 | 658 | #ifdef HAVE_SETEGID |
a1ec6916 | 659 | SCM_DEFINE (scm_setegid, "setegid", 1, 0, 0, |
1bbd0b84 | 660 | (SCM id), |
b380b885 MD |
661 | "Sets the effective group ID to the integer @var{id}, provided the process\n" |
662 | "has appropriate privileges. If effective IDs are not supported, the\n" | |
480fa28d | 663 | "real ID is set instead -- @code{(provided? 'EIDs)} reports whether the\n" |
b380b885 MD |
664 | "system supports effective IDs.\n" |
665 | "The return value is unspecified.") | |
1bbd0b84 | 666 | #define FUNC_NAME s_scm_setegid |
0f2d19dd | 667 | { |
02b754d3 GH |
668 | int rv; |
669 | ||
34d19ef6 | 670 | SCM_VALIDATE_INUM (1, id); |
0f2d19dd | 671 | #ifdef HAVE_SETEUID |
02b754d3 | 672 | rv = setegid (SCM_INUM (id)); |
0f2d19dd | 673 | #else |
02b754d3 | 674 | rv = setgid (SCM_INUM (id)); |
0f2d19dd | 675 | #endif |
02b754d3 | 676 | if (rv != 0) |
1bbd0b84 | 677 | SCM_SYSERROR; |
02b754d3 GH |
678 | return SCM_UNSPECIFIED; |
679 | ||
0f2d19dd | 680 | } |
1bbd0b84 | 681 | #undef FUNC_NAME |
0e958795 | 682 | #endif |
0f2d19dd | 683 | |
82893676 MG |
684 | |
685 | #ifdef HAVE_GETPGRP | |
a1ec6916 | 686 | SCM_DEFINE (scm_getpgrp, "getpgrp", 0, 0, 0, |
1bbd0b84 | 687 | (), |
1e6808ea | 688 | "Return an integer representing the current process group ID.\n" |
b380b885 | 689 | "This is the POSIX definition, not BSD.") |
1bbd0b84 | 690 | #define FUNC_NAME s_scm_getpgrp |
0f2d19dd JB |
691 | { |
692 | int (*fn)(); | |
4625e44f | 693 | fn = (int (*) ()) getpgrp; |
0f2d19dd JB |
694 | return SCM_MAKINUM (fn (0)); |
695 | } | |
1bbd0b84 | 696 | #undef FUNC_NAME |
82893676 MG |
697 | #endif /* HAVE_GETPGRP */ |
698 | ||
0f2d19dd | 699 | |
f25f761d | 700 | #ifdef HAVE_SETPGID |
a1ec6916 | 701 | SCM_DEFINE (scm_setpgid, "setpgid", 2, 0, 0, |
1bbd0b84 | 702 | (SCM pid, SCM pgid), |
b380b885 MD |
703 | "Move the process @var{pid} into the process group @var{pgid}. @var{pid} or\n" |
704 | "@var{pgid} must be integers: they can be zero to indicate the ID of the\n" | |
705 | "current process.\n" | |
706 | "Fails on systems that do not support job control.\n" | |
707 | "The return value is unspecified.") | |
1bbd0b84 | 708 | #define FUNC_NAME s_scm_setpgid |
0f2d19dd | 709 | { |
34d19ef6 HWN |
710 | SCM_VALIDATE_INUM (1, pid); |
711 | SCM_VALIDATE_INUM (2, pgid); | |
02b754d3 GH |
712 | /* FIXME(?): may be known as setpgrp. */ |
713 | if (setpgid (SCM_INUM (pid), SCM_INUM (pgid)) != 0) | |
1bbd0b84 | 714 | SCM_SYSERROR; |
02b754d3 | 715 | return SCM_UNSPECIFIED; |
0f2d19dd | 716 | } |
1bbd0b84 | 717 | #undef FUNC_NAME |
f25f761d | 718 | #endif /* HAVE_SETPGID */ |
0f2d19dd | 719 | |
f25f761d | 720 | #ifdef HAVE_SETSID |
a1ec6916 | 721 | SCM_DEFINE (scm_setsid, "setsid", 0, 0, 0, |
1bbd0b84 | 722 | (), |
b380b885 MD |
723 | "Creates a new session. The current process becomes the session leader\n" |
724 | "and is put in a new process group. The process will be detached\n" | |
725 | "from its controlling terminal if it has one.\n" | |
726 | "The return value is an integer representing the new process group ID.") | |
1bbd0b84 | 727 | #define FUNC_NAME s_scm_setsid |
0f2d19dd JB |
728 | { |
729 | pid_t sid = setsid (); | |
02b754d3 | 730 | if (sid == -1) |
1bbd0b84 | 731 | SCM_SYSERROR; |
02b754d3 | 732 | return SCM_UNSPECIFIED; |
0f2d19dd | 733 | } |
1bbd0b84 | 734 | #undef FUNC_NAME |
f25f761d | 735 | #endif /* HAVE_SETSID */ |
0f2d19dd | 736 | |
82893676 | 737 | #ifdef HAVE_TTYNAME |
a1ec6916 | 738 | SCM_DEFINE (scm_ttyname, "ttyname", 1, 0, 0, |
1bbd0b84 | 739 | (SCM port), |
1e6808ea MG |
740 | "Return a string with the name of the serial terminal device\n" |
741 | "underlying @var{port}.") | |
1bbd0b84 | 742 | #define FUNC_NAME s_scm_ttyname |
0f2d19dd | 743 | { |
1d1559ce | 744 | char *result; |
0f2d19dd | 745 | int fd; |
78446828 MV |
746 | |
747 | port = SCM_COERCE_OUTPORT (port); | |
34d19ef6 | 748 | SCM_VALIDATE_OPPORT (1, port); |
a98bddfd | 749 | if (!SCM_FPORTP (port)) |
0f2d19dd | 750 | return SCM_BOOL_F; |
ee149d03 | 751 | fd = SCM_FPORT_FDES (port); |
1d1559ce HWN |
752 | SCM_SYSCALL (result = ttyname (fd)); |
753 | if (!result) | |
1bbd0b84 | 754 | SCM_SYSERROR; |
1d1559ce HWN |
755 | /* result could be overwritten by another call to ttyname */ |
756 | return (scm_makfrom0str (result)); | |
0f2d19dd | 757 | } |
1bbd0b84 | 758 | #undef FUNC_NAME |
82893676 | 759 | #endif /* HAVE_TTYNAME */ |
0f2d19dd | 760 | |
f25f761d | 761 | #ifdef HAVE_CTERMID |
a1ec6916 | 762 | SCM_DEFINE (scm_ctermid, "ctermid", 0, 0, 0, |
1bbd0b84 | 763 | (), |
1e6808ea MG |
764 | "Return a string containing the file name of the controlling\n" |
765 | "terminal for the current process.") | |
1bbd0b84 | 766 | #define FUNC_NAME s_scm_ctermid |
0f2d19dd JB |
767 | { |
768 | char *result = ctermid (NULL); | |
02b754d3 | 769 | if (*result == '\0') |
1bbd0b84 | 770 | SCM_SYSERROR; |
02b754d3 | 771 | return scm_makfrom0str (result); |
0f2d19dd | 772 | } |
1bbd0b84 | 773 | #undef FUNC_NAME |
f25f761d | 774 | #endif /* HAVE_CTERMID */ |
0f2d19dd | 775 | |
f25f761d | 776 | #ifdef HAVE_TCGETPGRP |
a1ec6916 | 777 | SCM_DEFINE (scm_tcgetpgrp, "tcgetpgrp", 1, 0, 0, |
1bbd0b84 | 778 | (SCM port), |
1e6808ea MG |
779 | "Return the process group ID of the foreground process group\n" |
780 | "associated with the terminal open on the file descriptor\n" | |
781 | "underlying @var{port}.\n" | |
782 | "\n" | |
b380b885 MD |
783 | "If there is no foreground process group, the return value is a\n" |
784 | "number greater than 1 that does not match the process group ID\n" | |
785 | "of any existing process group. This can happen if all of the\n" | |
786 | "processes in the job that was formerly the foreground job have\n" | |
787 | "terminated, and no other job has yet been moved into the\n" | |
788 | "foreground.") | |
1bbd0b84 | 789 | #define FUNC_NAME s_scm_tcgetpgrp |
0f2d19dd JB |
790 | { |
791 | int fd; | |
792 | pid_t pgid; | |
78446828 MV |
793 | |
794 | port = SCM_COERCE_OUTPORT (port); | |
795 | ||
34d19ef6 | 796 | SCM_VALIDATE_OPFPORT (1, port); |
ee149d03 JB |
797 | fd = SCM_FPORT_FDES (port); |
798 | if ((pgid = tcgetpgrp (fd)) == -1) | |
1bbd0b84 | 799 | SCM_SYSERROR; |
02b754d3 | 800 | return SCM_MAKINUM (pgid); |
1bbd0b84 GB |
801 | } |
802 | #undef FUNC_NAME | |
f25f761d | 803 | #endif /* HAVE_TCGETPGRP */ |
0f2d19dd | 804 | |
f25f761d | 805 | #ifdef HAVE_TCSETPGRP |
a1ec6916 | 806 | SCM_DEFINE (scm_tcsetpgrp, "tcsetpgrp", 2, 0, 0, |
1bbd0b84 | 807 | (SCM port, SCM pgid), |
b380b885 MD |
808 | "Set the foreground process group ID for the terminal used by the file\n" |
809 | "descriptor underlying @var{port} to the integer @var{pgid}.\n" | |
810 | "The calling process\n" | |
811 | "must be a member of the same session as @var{pgid} and must have the same\n" | |
812 | "controlling terminal. The return value is unspecified.") | |
1bbd0b84 | 813 | #define FUNC_NAME s_scm_tcsetpgrp |
0f2d19dd JB |
814 | { |
815 | int fd; | |
78446828 MV |
816 | |
817 | port = SCM_COERCE_OUTPORT (port); | |
818 | ||
34d19ef6 HWN |
819 | SCM_VALIDATE_OPFPORT (1, port); |
820 | SCM_VALIDATE_INUM (2, pgid); | |
ee149d03 JB |
821 | fd = SCM_FPORT_FDES (port); |
822 | if (tcsetpgrp (fd, SCM_INUM (pgid)) == -1) | |
1bbd0b84 | 823 | SCM_SYSERROR; |
02b754d3 | 824 | return SCM_UNSPECIFIED; |
1bbd0b84 GB |
825 | } |
826 | #undef FUNC_NAME | |
f25f761d | 827 | #endif /* HAVE_TCSETPGRP */ |
0f2d19dd | 828 | |
2ee08a28 GH |
829 | /* return a newly allocated array of char pointers to each of the strings |
830 | in args, with a terminating NULL pointer. */ | |
831 | /* Note: a similar function is defined in dynl.c, but we don't necessarily | |
832 | want to export it. */ | |
833 | static char **allocate_string_pointers (SCM args) | |
0f2d19dd | 834 | { |
2ee08a28 GH |
835 | char **result; |
836 | int n_args = scm_ilength (args); | |
0f2d19dd | 837 | int i; |
6afcd3b2 | 838 | |
2ee08a28 GH |
839 | SCM_ASSERT (n_args >= 0, args, SCM_ARGn, "allocate_string_pointers"); |
840 | result = (char **) scm_malloc ((n_args + 1) * sizeof (char *)); | |
841 | result[n_args] = NULL; | |
842 | for (i = 0; i < n_args; i++) | |
0f2d19dd | 843 | { |
2ee08a28 | 844 | SCM car = SCM_CAR (args); |
a6d9e5ab | 845 | |
2ee08a28 GH |
846 | if (!SCM_STRINGP (car)) |
847 | { | |
848 | free (result); | |
849 | scm_wrong_type_arg ("allocate_string_pointers", SCM_ARGn, car); | |
850 | } | |
851 | result[i] = SCM_STRING_CHARS (SCM_CAR (args)); | |
852 | args = SCM_CDR (args); | |
0f2d19dd | 853 | } |
2ee08a28 | 854 | return result; |
0f2d19dd JB |
855 | } |
856 | ||
a1ec6916 | 857 | SCM_DEFINE (scm_execl, "execl", 1, 0, 1, |
1bbd0b84 | 858 | (SCM filename, SCM args), |
b380b885 MD |
859 | "Executes the file named by @var{path} as a new process image.\n" |
860 | "The remaining arguments are supplied to the process; from a C program\n" | |
bb2c02f2 | 861 | "they are accessible as the @code{argv} argument to @code{main}.\n" |
b380b885 | 862 | "Conventionally the first @var{arg} is the same as @var{path}.\n" |
8f85c0c6 | 863 | "All arguments must be strings.\n\n" |
b380b885 MD |
864 | "If @var{arg} is missing, @var{path} is executed with a null\n" |
865 | "argument list, which may have system-dependent side-effects.\n\n" | |
866 | "This procedure is currently implemented using the @code{execv} system\n" | |
867 | "call, but we call it @code{execl} because of its Scheme calling interface.") | |
1bbd0b84 | 868 | #define FUNC_NAME s_scm_execl |
0f2d19dd JB |
869 | { |
870 | char **execargv; | |
a6d9e5ab | 871 | SCM_VALIDATE_STRING (1, filename); |
2ee08a28 | 872 | execargv = allocate_string_pointers (args); |
a6d9e5ab | 873 | execv (SCM_STRING_CHARS (filename), execargv); |
1bbd0b84 | 874 | SCM_SYSERROR; |
02b754d3 GH |
875 | /* not reached. */ |
876 | return SCM_BOOL_F; | |
0f2d19dd | 877 | } |
1bbd0b84 | 878 | #undef FUNC_NAME |
0f2d19dd | 879 | |
a1ec6916 | 880 | SCM_DEFINE (scm_execlp, "execlp", 1, 0, 1, |
1bbd0b84 | 881 | (SCM filename, SCM args), |
b380b885 MD |
882 | "Similar to @code{execl}, however if\n" |
883 | "@var{filename} does not contain a slash\n" | |
884 | "then the file to execute will be located by searching the\n" | |
885 | "directories listed in the @code{PATH} environment variable.\n\n" | |
6bcd01fc | 886 | "This procedure is currently implemented using the @code{execvp} system\n" |
b380b885 | 887 | "call, but we call it @code{execlp} because of its Scheme calling interface.") |
1bbd0b84 | 888 | #define FUNC_NAME s_scm_execlp |
0f2d19dd JB |
889 | { |
890 | char **execargv; | |
a6d9e5ab | 891 | SCM_VALIDATE_STRING (1, filename); |
2ee08a28 | 892 | execargv = allocate_string_pointers (args); |
a6d9e5ab | 893 | execvp (SCM_STRING_CHARS (filename), execargv); |
1bbd0b84 | 894 | SCM_SYSERROR; |
02b754d3 GH |
895 | /* not reached. */ |
896 | return SCM_BOOL_F; | |
0f2d19dd | 897 | } |
1bbd0b84 | 898 | #undef FUNC_NAME |
0f2d19dd | 899 | |
6afcd3b2 | 900 | static char ** |
3eeba8d4 | 901 | environ_list_to_c (SCM envlist, int arg, const char *proc) |
6afcd3b2 GH |
902 | { |
903 | int num_strings; | |
904 | char **result; | |
a6d9e5ab | 905 | int i; |
6afcd3b2 | 906 | |
6afcd3b2 | 907 | num_strings = scm_ilength (envlist); |
a6d9e5ab | 908 | SCM_ASSERT (num_strings >= 0, envlist, arg, proc); |
67329a9e | 909 | result = (char **) scm_malloc ((num_strings + 1) * sizeof (char *)); |
6afcd3b2 GH |
910 | if (result == NULL) |
911 | scm_memory_error (proc); | |
c96d76b8 | 912 | for (i = 0; !SCM_NULL_OR_NIL_P (envlist); ++i, envlist = SCM_CDR (envlist)) |
6afcd3b2 | 913 | { |
a6d9e5ab | 914 | SCM str = SCM_CAR (envlist); |
6afcd3b2 GH |
915 | int len; |
916 | char *src; | |
917 | ||
a6d9e5ab DH |
918 | SCM_ASSERT (SCM_STRINGP (str), envlist, arg, proc); |
919 | len = SCM_STRING_LENGTH (str); | |
34f0f2b8 | 920 | src = SCM_STRING_CHARS (str); |
67329a9e | 921 | result[i] = scm_malloc (len + 1); |
6afcd3b2 GH |
922 | if (result[i] == NULL) |
923 | scm_memory_error (proc); | |
a6d9e5ab DH |
924 | memcpy (result[i], src, len); |
925 | result[i][len] = 0; | |
6afcd3b2 GH |
926 | } |
927 | result[i] = 0; | |
6afcd3b2 GH |
928 | return result; |
929 | } | |
930 | ||
a1ec6916 | 931 | SCM_DEFINE (scm_execle, "execle", 2, 0, 1, |
1bbd0b84 | 932 | (SCM filename, SCM env, SCM args), |
b380b885 MD |
933 | "Similar to @code{execl}, but the environment of the new process is\n" |
934 | "specified by @var{env}, which must be a list of strings as returned by the\n" | |
935 | "@code{environ} procedure.\n\n" | |
936 | "This procedure is currently implemented using the @code{execve} system\n" | |
937 | "call, but we call it @code{execle} because of its Scheme calling interface.") | |
1bbd0b84 | 938 | #define FUNC_NAME s_scm_execle |
6afcd3b2 GH |
939 | { |
940 | char **execargv; | |
941 | char **exec_env; | |
942 | ||
a6d9e5ab | 943 | SCM_VALIDATE_STRING (1, filename); |
6afcd3b2 | 944 | |
2ee08a28 | 945 | execargv = allocate_string_pointers (args); |
1bbd0b84 | 946 | exec_env = environ_list_to_c (env, SCM_ARG2, FUNC_NAME); |
a6d9e5ab | 947 | execve (SCM_STRING_CHARS (filename), execargv, exec_env); |
1bbd0b84 | 948 | SCM_SYSERROR; |
6afcd3b2 GH |
949 | /* not reached. */ |
950 | return SCM_BOOL_F; | |
951 | } | |
1bbd0b84 | 952 | #undef FUNC_NAME |
6afcd3b2 | 953 | |
82893676 | 954 | #ifdef HAVE_FORK |
a1ec6916 | 955 | SCM_DEFINE (scm_fork, "primitive-fork", 0, 0, 0, |
1bbd0b84 | 956 | (), |
b380b885 MD |
957 | "Creates a new \"child\" process by duplicating the current \"parent\" process.\n" |
958 | "In the child the return value is 0. In the parent the return value is\n" | |
959 | "the integer process ID of the child.\n\n" | |
960 | "This procedure has been renamed from @code{fork} to avoid a naming conflict\n" | |
961 | "with the scsh fork.") | |
1bbd0b84 | 962 | #define FUNC_NAME s_scm_fork |
0f2d19dd | 963 | { |
bab0f4e5 | 964 | int pid; |
0f2d19dd JB |
965 | pid = fork (); |
966 | if (pid == -1) | |
1bbd0b84 | 967 | SCM_SYSERROR; |
02b754d3 | 968 | return SCM_MAKINUM (0L+pid); |
0f2d19dd | 969 | } |
1bbd0b84 | 970 | #undef FUNC_NAME |
82893676 | 971 | #endif /* HAVE_FORK */ |
0f2d19dd | 972 | |
4f68365d MV |
973 | #ifdef __MINGW32__ |
974 | # include "win32-uname.h" | |
975 | #endif | |
976 | ||
977 | #if defined (HAVE_UNAME) || defined (__MINGW32__) | |
a1ec6916 | 978 | SCM_DEFINE (scm_uname, "uname", 0, 0, 0, |
1bbd0b84 | 979 | (), |
1e6808ea MG |
980 | "Return an object with some information about the computer\n" |
981 | "system the program is running on.") | |
1bbd0b84 | 982 | #define FUNC_NAME s_scm_uname |
0f2d19dd | 983 | { |
0f2d19dd | 984 | struct utsname buf; |
1d1559ce | 985 | SCM result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
e1a191a8 | 986 | if (uname (&buf) < 0) |
1bbd0b84 | 987 | SCM_SYSERROR; |
1d1559ce HWN |
988 | SCM_VECTOR_SET(result, 0, scm_makfrom0str (buf.sysname)); |
989 | SCM_VECTOR_SET(result, 1, scm_makfrom0str (buf.nodename)); | |
990 | SCM_VECTOR_SET(result, 2, scm_makfrom0str (buf.release)); | |
991 | SCM_VECTOR_SET(result, 3, scm_makfrom0str (buf.version)); | |
992 | SCM_VECTOR_SET(result, 4, scm_makfrom0str (buf.machine)); | |
0f2d19dd | 993 | /* |
02b754d3 | 994 | a linux special? |
1d1559ce | 995 | SCM_VECTOR_SET(result, 5, scm_makfrom0str (buf.domainname)); |
0f2d19dd | 996 | */ |
1d1559ce | 997 | return result; |
0f2d19dd | 998 | } |
1bbd0b84 | 999 | #undef FUNC_NAME |
f25f761d | 1000 | #endif /* HAVE_UNAME */ |
0f2d19dd | 1001 | |
a1ec6916 | 1002 | SCM_DEFINE (scm_environ, "environ", 0, 1, 0, |
1bbd0b84 | 1003 | (SCM env), |
1e6808ea MG |
1004 | "If @var{env} is omitted, return the current environment (in the\n" |
1005 | "Unix sense) as a list of strings. Otherwise set the current\n" | |
1006 | "environment, which is also the default environment for child\n" | |
1007 | "processes, to the supplied list of strings. Each member of\n" | |
1008 | "@var{env} should be of the form @code{NAME=VALUE} and values of\n" | |
1009 | "@code{NAME} should not be duplicated. If @var{env} is supplied\n" | |
1010 | "then the return value is unspecified.") | |
1bbd0b84 | 1011 | #define FUNC_NAME s_scm_environ |
0f2d19dd JB |
1012 | { |
1013 | if (SCM_UNBNDP (env)) | |
1014 | return scm_makfromstrs (-1, environ); | |
1015 | else | |
1016 | { | |
0f2d19dd | 1017 | char **new_environ; |
6afcd3b2 | 1018 | |
1bbd0b84 | 1019 | new_environ = environ_list_to_c (env, SCM_ARG1, FUNC_NAME); |
0f2d19dd JB |
1020 | /* Free the old environment, except when called for the first |
1021 | * time. | |
1022 | */ | |
1023 | { | |
1024 | char **ep; | |
1025 | static int first = 1; | |
1026 | if (!first) | |
1027 | { | |
1028 | for (ep = environ; *ep != NULL; ep++) | |
19468eff GH |
1029 | free (*ep); |
1030 | free ((char *) environ); | |
0f2d19dd JB |
1031 | } |
1032 | first = 0; | |
1033 | } | |
1034 | environ = new_environ; | |
1035 | return SCM_UNSPECIFIED; | |
1036 | } | |
1037 | } | |
1bbd0b84 | 1038 | #undef FUNC_NAME |
0f2d19dd | 1039 | |
9ee5fce4 MD |
1040 | #ifdef L_tmpnam |
1041 | ||
a1ec6916 | 1042 | SCM_DEFINE (scm_tmpnam, "tmpnam", 0, 0, 0, |
1bbd0b84 | 1043 | (), |
1e6808ea MG |
1044 | "Return a name in the file system that does not match any\n" |
1045 | "existing file. However there is no guarantee that another\n" | |
1046 | "process will not create the file after @code{tmpnam} is called.\n" | |
1047 | "Care should be taken if opening the file, e.g., use the\n" | |
1048 | "@code{O_EXCL} open flag or use @code{mkstemp!} instead.") | |
1bbd0b84 | 1049 | #define FUNC_NAME s_scm_tmpnam |
9ee5fce4 MD |
1050 | { |
1051 | char name[L_tmpnam]; | |
6d163216 GH |
1052 | char *rv; |
1053 | ||
1054 | SCM_SYSCALL (rv = tmpnam (name)); | |
1055 | if (rv == NULL) | |
1056 | /* not SCM_SYSERROR since errno probably not set. */ | |
1057 | SCM_MISC_ERROR ("tmpnam failed", SCM_EOL); | |
9ee5fce4 MD |
1058 | return scm_makfrom0str (name); |
1059 | } | |
0f981281 | 1060 | #undef FUNC_NAME |
0f2d19dd | 1061 | |
1bbd0b84 | 1062 | #endif |
1cc91f1b | 1063 | |
4f68365d MV |
1064 | #ifndef HAVE_MKSTEMP |
1065 | extern int mkstemp (char *); | |
1066 | #endif | |
1067 | ||
6d163216 GH |
1068 | SCM_DEFINE (scm_mkstemp, "mkstemp!", 1, 0, 0, |
1069 | (SCM tmpl), | |
1e6808ea MG |
1070 | "Create a new unique file in the file system and returns a new\n" |
1071 | "buffered port open for reading and writing to the file.\n" | |
1072 | "@var{tmpl} is a string specifying where the file should be\n" | |
1073 | "created: it must end with @code{XXXXXX} and will be changed in\n" | |
1074 | "place to return the name of the temporary file.") | |
6d163216 GH |
1075 | #define FUNC_NAME s_scm_mkstemp |
1076 | { | |
1077 | char *c_tmpl; | |
1078 | int rv; | |
1079 | ||
6d163216 GH |
1080 | SCM_VALIDATE_STRING_COPY (1, tmpl, c_tmpl); |
1081 | SCM_SYSCALL (rv = mkstemp (c_tmpl)); | |
1082 | if (rv == -1) | |
1083 | SCM_SYSERROR; | |
1084 | return scm_fdes_to_port (rv, "w+", tmpl); | |
1085 | } | |
1086 | #undef FUNC_NAME | |
1087 | ||
a1ec6916 | 1088 | SCM_DEFINE (scm_utime, "utime", 1, 2, 0, |
1bbd0b84 | 1089 | (SCM pathname, SCM actime, SCM modtime), |
1e6808ea MG |
1090 | "@code{utime} sets the access and modification times for the\n" |
1091 | "file named by @var{path}. If @var{actime} or @var{modtime} is\n" | |
1092 | "not supplied, then the current time is used. @var{actime} and\n" | |
1093 | "@var{modtime} must be integer time values as returned by the\n" | |
1094 | "@code{current-time} procedure.\n" | |
1095 | "@lisp\n" | |
b380b885 | 1096 | "(utime \"foo\" (- (current-time) 3600))\n" |
1e6808ea MG |
1097 | "@end lisp\n" |
1098 | "will set the access time to one hour in the past and the\n" | |
1099 | "modification time to the current time.") | |
1bbd0b84 | 1100 | #define FUNC_NAME s_scm_utime |
0f2d19dd JB |
1101 | { |
1102 | int rv; | |
1103 | struct utimbuf utm_tmp; | |
1104 | ||
a6d9e5ab | 1105 | SCM_VALIDATE_STRING (1, pathname); |
0f2d19dd JB |
1106 | if (SCM_UNBNDP (actime)) |
1107 | SCM_SYSCALL (time (&utm_tmp.actime)); | |
1108 | else | |
e4b265d8 | 1109 | utm_tmp.actime = SCM_NUM2ULONG (2, actime); |
0f2d19dd JB |
1110 | |
1111 | if (SCM_UNBNDP (modtime)) | |
1112 | SCM_SYSCALL (time (&utm_tmp.modtime)); | |
1113 | else | |
e4b265d8 | 1114 | utm_tmp.modtime = SCM_NUM2ULONG (3, modtime); |
0f2d19dd | 1115 | |
a6d9e5ab | 1116 | SCM_SYSCALL (rv = utime (SCM_STRING_CHARS (pathname), &utm_tmp)); |
02b754d3 | 1117 | if (rv != 0) |
1bbd0b84 | 1118 | SCM_SYSERROR; |
02b754d3 | 1119 | return SCM_UNSPECIFIED; |
0f2d19dd | 1120 | } |
1bbd0b84 | 1121 | #undef FUNC_NAME |
0f2d19dd | 1122 | |
a1ec6916 | 1123 | SCM_DEFINE (scm_access, "access?", 2, 0, 0, |
1bbd0b84 | 1124 | (SCM path, SCM how), |
1e6808ea MG |
1125 | "Return @code{#t} if @var{path} corresponds to an existing file\n" |
1126 | "and the current process has the type of access specified by\n" | |
1127 | "@var{how}, otherwise @code{#f}. @var{how} should be specified\n" | |
1128 | "using the values of the variables listed below. Multiple\n" | |
1129 | "values can be combined using a bitwise or, in which case\n" | |
1130 | "@code{#t} will only be returned if all accesses are granted.\n" | |
1131 | "\n" | |
1132 | "Permissions are checked using the real id of the current\n" | |
1133 | "process, not the effective id, although it's the effective id\n" | |
1134 | "which determines whether the access would actually be granted.\n" | |
1135 | "\n" | |
b380b885 MD |
1136 | "@defvar R_OK\n" |
1137 | "test for read permission.\n" | |
1138 | "@end defvar\n" | |
1139 | "@defvar W_OK\n" | |
1140 | "test for write permission.\n" | |
1141 | "@end defvar\n" | |
1142 | "@defvar X_OK\n" | |
1143 | "test for execute permission.\n" | |
1144 | "@end defvar\n" | |
1145 | "@defvar F_OK\n" | |
1146 | "test for existence of the file.\n" | |
1147 | "@end defvar") | |
1bbd0b84 | 1148 | #define FUNC_NAME s_scm_access |
0f2d19dd JB |
1149 | { |
1150 | int rv; | |
1151 | ||
a6d9e5ab | 1152 | SCM_VALIDATE_STRING (1, path); |
a6d9e5ab DH |
1153 | SCM_VALIDATE_INUM (2, how); |
1154 | rv = access (SCM_STRING_CHARS (path), SCM_INUM (how)); | |
156dcb09 | 1155 | return SCM_NEGATE_BOOL(rv); |
0f2d19dd | 1156 | } |
1bbd0b84 | 1157 | #undef FUNC_NAME |
0f2d19dd | 1158 | |
a1ec6916 | 1159 | SCM_DEFINE (scm_getpid, "getpid", 0, 0, 0, |
1bbd0b84 | 1160 | (), |
1e6808ea | 1161 | "Return an integer representing the current process ID.") |
1bbd0b84 | 1162 | #define FUNC_NAME s_scm_getpid |
0f2d19dd JB |
1163 | { |
1164 | return SCM_MAKINUM ((unsigned long) getpid ()); | |
1165 | } | |
1bbd0b84 | 1166 | #undef FUNC_NAME |
0f2d19dd | 1167 | |
a1ec6916 | 1168 | SCM_DEFINE (scm_putenv, "putenv", 1, 0, 0, |
1bbd0b84 | 1169 | (SCM str), |
b380b885 MD |
1170 | "Modifies the environment of the current process, which is\n" |
1171 | "also the default environment inherited by child processes.\n\n" | |
1172 | "If @var{string} is of the form @code{NAME=VALUE} then it will be written\n" | |
1173 | "directly into the environment, replacing any existing environment string\n" | |
1174 | "with\n" | |
1175 | "name matching @code{NAME}. If @var{string} does not contain an equal\n" | |
1176 | "sign, then any existing string with name matching @var{string} will\n" | |
1177 | "be removed.\n\n" | |
1178 | "The return value is unspecified.") | |
1bbd0b84 | 1179 | #define FUNC_NAME s_scm_putenv |
0f2d19dd | 1180 | { |
f93ddd39 | 1181 | int rv; |
19468eff | 1182 | char *ptr; |
f93ddd39 | 1183 | |
9fd38a3d | 1184 | SCM_VALIDATE_STRING (1, str); |
002409fe MV |
1185 | |
1186 | if (strchr (SCM_STRING_CHARS (str), '=') == NULL) | |
1187 | { | |
1188 | /* No '=' in argument means we should remove the variable from | |
1189 | the environment. Not all putenvs understand this. To be | |
1190 | safe, we do it explicitely using unsetenv. */ | |
1191 | unsetenv (SCM_STRING_CHARS (str)); | |
1192 | } | |
1193 | else | |
1194 | { | |
1195 | /* must make a new copy to be left in the environment, safe from gc. */ | |
67329a9e | 1196 | ptr = scm_malloc (SCM_STRING_LENGTH (str) + 1); |
002409fe MV |
1197 | if (ptr == NULL) |
1198 | SCM_MEMORY_ERROR; | |
1199 | strncpy (ptr, SCM_STRING_CHARS (str), SCM_STRING_LENGTH (str)); | |
1200 | ptr[SCM_STRING_LENGTH (str)] = 0; | |
1201 | rv = putenv (ptr); | |
1202 | if (rv < 0) | |
1203 | SCM_SYSERROR; | |
1204 | } | |
f93ddd39 | 1205 | return SCM_UNSPECIFIED; |
0f2d19dd | 1206 | } |
1bbd0b84 | 1207 | #undef FUNC_NAME |
0f2d19dd | 1208 | |
f25f761d | 1209 | #ifdef HAVE_SETLOCALE |
a1ec6916 | 1210 | SCM_DEFINE (scm_setlocale, "setlocale", 1, 1, 0, |
1bbd0b84 | 1211 | (SCM category, SCM locale), |
1e6808ea MG |
1212 | "If @var{locale} is omitted, return the current value of the\n" |
1213 | "specified locale category as a system-dependent string.\n" | |
1214 | "@var{category} should be specified using the values\n" | |
1215 | "@code{LC_COLLATE}, @code{LC_ALL} etc.\n" | |
1216 | "\n" | |
1217 | "Otherwise the specified locale category is set to the string\n" | |
1218 | "@var{locale} and the new value is returned as a\n" | |
1219 | "system-dependent string. If @var{locale} is an empty string,\n" | |
bb2c02f2 | 1220 | "the locale will be set using environment variables.") |
1bbd0b84 | 1221 | #define FUNC_NAME s_scm_setlocale |
0f2d19dd | 1222 | { |
0f2d19dd JB |
1223 | char *clocale; |
1224 | char *rv; | |
1225 | ||
34d19ef6 | 1226 | SCM_VALIDATE_INUM (1, category); |
0f2d19dd JB |
1227 | if (SCM_UNBNDP (locale)) |
1228 | { | |
1229 | clocale = NULL; | |
1230 | } | |
1231 | else | |
1232 | { | |
a6d9e5ab | 1233 | SCM_VALIDATE_STRING (2, locale); |
a6d9e5ab | 1234 | clocale = SCM_STRING_CHARS (locale); |
0f2d19dd JB |
1235 | } |
1236 | ||
1237 | rv = setlocale (SCM_INUM (category), clocale); | |
02b754d3 | 1238 | if (rv == NULL) |
1bbd0b84 | 1239 | SCM_SYSERROR; |
02b754d3 | 1240 | return scm_makfrom0str (rv); |
0f2d19dd | 1241 | } |
1bbd0b84 | 1242 | #undef FUNC_NAME |
f25f761d | 1243 | #endif /* HAVE_SETLOCALE */ |
0f2d19dd | 1244 | |
f25f761d | 1245 | #ifdef HAVE_MKNOD |
a1ec6916 | 1246 | SCM_DEFINE (scm_mknod, "mknod", 4, 0, 0, |
1bbd0b84 | 1247 | (SCM path, SCM type, SCM perms, SCM dev), |
b380b885 MD |
1248 | "Creates a new special file, such as a file corresponding to a device.\n" |
1249 | "@var{path} specifies the name of the file. @var{type} should\n" | |
1250 | "be one of the following symbols:\n" | |
1251 | "regular, directory, symlink, block-special, char-special,\n" | |
1252 | "fifo, or socket. @var{perms} (an integer) specifies the file permissions.\n" | |
1253 | "@var{dev} (an integer) specifies which device the special file refers\n" | |
1254 | "to. Its exact interpretation depends on the kind of special file\n" | |
1255 | "being created.\n\n" | |
1256 | "E.g.,\n" | |
1e6808ea | 1257 | "@lisp\n" |
09831f94 | 1258 | "(mknod \"/dev/fd0\" 'block-special #o660 (+ (* 2 256) 2))\n" |
1e6808ea | 1259 | "@end lisp\n\n" |
a3c8b9fc | 1260 | "The return value is unspecified.") |
1bbd0b84 | 1261 | #define FUNC_NAME s_scm_mknod |
0f2d19dd | 1262 | { |
0f2d19dd | 1263 | int val; |
19468eff | 1264 | char *p; |
82a76bdf | 1265 | int ctype = 0; |
19468eff | 1266 | |
a6d9e5ab | 1267 | SCM_VALIDATE_STRING (1, path); |
34d19ef6 HWN |
1268 | SCM_VALIDATE_SYMBOL (2, type); |
1269 | SCM_VALIDATE_INUM (3, perms); | |
1270 | SCM_VALIDATE_INUM (4, dev); | |
19468eff | 1271 | |
86c991c2 | 1272 | p = SCM_SYMBOL_CHARS (type); |
19468eff GH |
1273 | if (strcmp (p, "regular") == 0) |
1274 | ctype = S_IFREG; | |
1275 | else if (strcmp (p, "directory") == 0) | |
1276 | ctype = S_IFDIR; | |
1277 | else if (strcmp (p, "symlink") == 0) | |
1278 | ctype = S_IFLNK; | |
1279 | else if (strcmp (p, "block-special") == 0) | |
1280 | ctype = S_IFBLK; | |
1281 | else if (strcmp (p, "char-special") == 0) | |
1282 | ctype = S_IFCHR; | |
1283 | else if (strcmp (p, "fifo") == 0) | |
1284 | ctype = S_IFIFO; | |
e655d034 | 1285 | #ifdef S_IFSOCK |
19468eff GH |
1286 | else if (strcmp (p, "socket") == 0) |
1287 | ctype = S_IFSOCK; | |
e655d034 | 1288 | #endif |
19468eff | 1289 | else |
34d19ef6 | 1290 | SCM_OUT_OF_RANGE (2, type); |
19468eff | 1291 | |
a6d9e5ab DH |
1292 | SCM_SYSCALL (val = mknod (SCM_STRING_CHARS (path), ctype | SCM_INUM (perms), |
1293 | SCM_INUM (dev))); | |
02b754d3 | 1294 | if (val != 0) |
1bbd0b84 | 1295 | SCM_SYSERROR; |
02b754d3 | 1296 | return SCM_UNSPECIFIED; |
0f2d19dd | 1297 | } |
1bbd0b84 | 1298 | #undef FUNC_NAME |
f25f761d | 1299 | #endif /* HAVE_MKNOD */ |
0f2d19dd | 1300 | |
f25f761d | 1301 | #ifdef HAVE_NICE |
a1ec6916 | 1302 | SCM_DEFINE (scm_nice, "nice", 1, 0, 0, |
1bbd0b84 | 1303 | (SCM incr), |
b380b885 MD |
1304 | "Increment the priority of the current process by @var{incr}. A higher\n" |
1305 | "priority value means that the process runs less often.\n" | |
1306 | "The return value is unspecified.") | |
1bbd0b84 | 1307 | #define FUNC_NAME s_scm_nice |
0f2d19dd | 1308 | { |
34d19ef6 | 1309 | SCM_VALIDATE_INUM (1, incr); |
02b754d3 | 1310 | if (nice(SCM_INUM(incr)) != 0) |
1bbd0b84 | 1311 | SCM_SYSERROR; |
02b754d3 | 1312 | return SCM_UNSPECIFIED; |
0f2d19dd | 1313 | } |
1bbd0b84 | 1314 | #undef FUNC_NAME |
f25f761d | 1315 | #endif /* HAVE_NICE */ |
0f2d19dd | 1316 | |
f25f761d | 1317 | #ifdef HAVE_SYNC |
a1ec6916 | 1318 | SCM_DEFINE (scm_sync, "sync", 0, 0, 0, |
1bbd0b84 | 1319 | (), |
b380b885 MD |
1320 | "Flush the operating system disk buffers.\n" |
1321 | "The return value is unspecified.") | |
1bbd0b84 | 1322 | #define FUNC_NAME s_scm_sync |
0f2d19dd | 1323 | { |
0f2d19dd | 1324 | sync(); |
127ec750 | 1325 | return SCM_UNSPECIFIED; |
0f2d19dd | 1326 | } |
1bbd0b84 | 1327 | #undef FUNC_NAME |
f25f761d | 1328 | #endif /* HAVE_SYNC */ |
0f2d19dd | 1329 | |
94e6d793 MG |
1330 | #if HAVE_LIBCRYPT && HAVE_CRYPT_H |
1331 | SCM_DEFINE (scm_crypt, "crypt", 2, 0, 0, | |
1332 | (SCM key, SCM salt), | |
1333 | "Encrypt @var{key} using @var{salt} as the salt value to the\n" | |
9401323e | 1334 | "crypt(3) library call.") |
94e6d793 MG |
1335 | #define FUNC_NAME s_scm_crypt |
1336 | { | |
1337 | char * p; | |
1338 | ||
1339 | SCM_VALIDATE_STRING (1, key); | |
1340 | SCM_VALIDATE_STRING (2, salt); | |
94e6d793 MG |
1341 | |
1342 | p = crypt (SCM_STRING_CHARS (key), SCM_STRING_CHARS (salt)); | |
1343 | return scm_makfrom0str (p); | |
1344 | } | |
1345 | #undef FUNC_NAME | |
1346 | #endif /* HAVE_LIBCRYPT && HAVE_CRYPT_H */ | |
1347 | ||
1348 | #if HAVE_CHROOT | |
1349 | SCM_DEFINE (scm_chroot, "chroot", 1, 0, 0, | |
1350 | (SCM path), | |
1351 | "Change the root directory to that specified in @var{path}.\n" | |
1352 | "This directory will be used for path names beginning with\n" | |
1353 | "@file{/}. The root directory is inherited by all children\n" | |
1354 | "of the current process. Only the superuser may change the\n" | |
1355 | "root directory.") | |
1356 | #define FUNC_NAME s_scm_chroot | |
1357 | { | |
1358 | SCM_VALIDATE_STRING (1, path); | |
94e6d793 MG |
1359 | |
1360 | if (chroot (SCM_STRING_CHARS (path)) == -1) | |
1361 | SCM_SYSERROR; | |
1362 | return SCM_UNSPECIFIED; | |
1363 | } | |
1364 | #undef FUNC_NAME | |
1365 | #endif /* HAVE_CHROOT */ | |
1366 | ||
7beabedb MG |
1367 | |
1368 | #ifdef __MINGW32__ | |
1369 | /* Wrapper function to supplying `getlogin()' under Windows. */ | |
1370 | static char * getlogin (void) | |
1371 | { | |
1372 | static char user[256]; | |
1373 | static unsigned long len = 256; | |
1374 | ||
1375 | if (!GetUserName (user, &len)) | |
1376 | return NULL; | |
1377 | return user; | |
1378 | } | |
1379 | #endif /* __MINGW32__ */ | |
1380 | ||
1381 | ||
4f68365d | 1382 | #if defined (HAVE_GETLOGIN) || defined (__MINGW32__) |
94e6d793 MG |
1383 | SCM_DEFINE (scm_getlogin, "getlogin", 0, 0, 0, |
1384 | (void), | |
1385 | "Return a string containing the name of the user logged in on\n" | |
1386 | "the controlling terminal of the process, or @code{#f} if this\n" | |
1387 | "information cannot be obtained.") | |
1388 | #define FUNC_NAME s_scm_getlogin | |
1389 | { | |
1390 | char * p; | |
1391 | ||
1392 | p = getlogin (); | |
1393 | if (!p || !*p) | |
1394 | return SCM_BOOL_F; | |
1395 | return scm_makfrom0str (p); | |
1396 | } | |
1397 | #undef FUNC_NAME | |
1398 | #endif /* HAVE_GETLOGIN */ | |
1399 | ||
1400 | #if HAVE_CUSERID | |
1401 | SCM_DEFINE (scm_cuserid, "cuserid", 0, 0, 0, | |
1402 | (void), | |
1403 | "Return a string containing a user name associated with the\n" | |
1404 | "effective user id of the process. Return @code{#f} if this\n" | |
1405 | "information cannot be obtained.") | |
1406 | #define FUNC_NAME s_scm_cuserid | |
1407 | { | |
1408 | char * p; | |
1409 | ||
1410 | p = cuserid (NULL); | |
1411 | if (!p || !*p) | |
1412 | return SCM_BOOL_F; | |
1413 | return scm_makfrom0str (p); | |
1414 | } | |
1415 | #undef FUNC_NAME | |
1416 | #endif /* HAVE_CUSERID */ | |
1417 | ||
1418 | #if HAVE_GETPRIORITY | |
1419 | SCM_DEFINE (scm_getpriority, "getpriority", 2, 0, 0, | |
1420 | (SCM which, SCM who), | |
1421 | "Return the scheduling priority of the process, process group\n" | |
1422 | "or user, as indicated by @var{which} and @var{who}. @var{which}\n" | |
1423 | "is one of the variables @code{PRIO_PROCESS}, @code{PRIO_PGRP}\n" | |
1424 | "or @code{PRIO_USER}, and @var{who} is interpreted relative to\n" | |
1425 | "@var{which} (a process identifier for @code{PRIO_PROCESS},\n" | |
1426 | "process group identifier for @code{PRIO_PGRP}, and a user\n" | |
1427 | "identifier for @code{PRIO_USER}. A zero value of @var{who}\n" | |
1428 | "denotes the current process, process group, or user. Return\n" | |
1429 | "the highest priority (lowest numerical value) of any of the\n" | |
1430 | "specified processes.") | |
1431 | #define FUNC_NAME s_scm_getpriority | |
1432 | { | |
1433 | int cwhich, cwho, ret; | |
1434 | ||
1435 | SCM_VALIDATE_INUM_COPY (1, which, cwhich); | |
1436 | SCM_VALIDATE_INUM_COPY (2, who, cwho); | |
1437 | ||
1438 | /* We have to clear errno and examine it later, because -1 is a | |
1439 | legal return value for getpriority(). */ | |
1440 | errno = 0; | |
1441 | ret = getpriority (cwhich, cwho); | |
1442 | if (errno != 0) | |
1443 | SCM_SYSERROR; | |
1444 | return SCM_MAKINUM (ret); | |
1445 | } | |
1446 | #undef FUNC_NAME | |
1447 | #endif /* HAVE_GETPRIORITY */ | |
1448 | ||
1449 | #if HAVE_SETPRIORITY | |
1450 | SCM_DEFINE (scm_setpriority, "setpriority", 3, 0, 0, | |
1451 | (SCM which, SCM who, SCM prio), | |
1452 | "Set the scheduling priority of the process, process group\n" | |
1453 | "or user, as indicated by @var{which} and @var{who}. @var{which}\n" | |
1454 | "is one of the variables @code{PRIO_PROCESS}, @code{PRIO_PGRP}\n" | |
1455 | "or @code{PRIO_USER}, and @var{who} is interpreted relative to\n" | |
1456 | "@var{which} (a process identifier for @code{PRIO_PROCESS},\n" | |
1457 | "process group identifier for @code{PRIO_PGRP}, and a user\n" | |
1458 | "identifier for @code{PRIO_USER}. A zero value of @var{who}\n" | |
1459 | "denotes the current process, process group, or user.\n" | |
1460 | "@var{prio} is a value in the range -20 and 20, the default\n" | |
1461 | "priority is 0; lower priorities cause more favorable\n" | |
1462 | "scheduling. Sets the priority of all of the specified\n" | |
1463 | "processes. Only the super-user may lower priorities.\n" | |
1464 | "The return value is not specified.") | |
1465 | #define FUNC_NAME s_scm_setpriority | |
1466 | { | |
1467 | int cwhich, cwho, cprio; | |
1468 | ||
1469 | SCM_VALIDATE_INUM_COPY (1, which, cwhich); | |
1470 | SCM_VALIDATE_INUM_COPY (2, who, cwho); | |
1471 | SCM_VALIDATE_INUM_COPY (3, prio, cprio); | |
1472 | ||
1473 | if (setpriority (cwhich, cwho, cprio) == -1) | |
1474 | SCM_SYSERROR; | |
1475 | return SCM_UNSPECIFIED; | |
1476 | } | |
1477 | #undef FUNC_NAME | |
1478 | #endif /* HAVE_SETPRIORITY */ | |
1479 | ||
1480 | #if HAVE_GETPASS | |
1481 | SCM_DEFINE (scm_getpass, "getpass", 1, 0, 0, | |
1482 | (SCM prompt), | |
1483 | "Display @var{prompt} to the standard error output and read\n" | |
1484 | "a password from @file{/dev/tty}. If this file is not\n" | |
1485 | "accessible, it reads from standard input. The password may be\n" | |
1486 | "up to 127 characters in length. Additional characters and the\n" | |
1487 | "terminating newline character are discarded. While reading\n" | |
1488 | "the password, echoing and the generation of signals by special\n" | |
1489 | "characters is disabled.") | |
1490 | #define FUNC_NAME s_scm_getpass | |
1491 | { | |
1492 | char * p; | |
1493 | SCM passwd; | |
1494 | ||
1495 | SCM_VALIDATE_STRING (1, prompt); | |
94e6d793 MG |
1496 | |
1497 | p = getpass(SCM_STRING_CHARS (prompt)); | |
1498 | passwd = scm_makfrom0str (p); | |
1499 | ||
1500 | /* Clear out the password in the static buffer. */ | |
1501 | memset (p, 0, strlen (p)); | |
1502 | ||
1503 | return passwd; | |
1504 | } | |
1505 | #undef FUNC_NAME | |
1506 | #endif /* HAVE_GETPASS */ | |
1507 | ||
8f99e3f3 SJ |
1508 | /* Wrapper function for flock() support under M$-Windows. */ |
1509 | #ifdef __MINGW32__ | |
1510 | # include <io.h> | |
1511 | # include <sys/locking.h> | |
1512 | # include <errno.h> | |
1513 | # ifndef _LK_UNLCK | |
1514 | /* Current MinGW package fails to define this. *sigh* */ | |
1515 | # define _LK_UNLCK 0 | |
1516 | # endif | |
1517 | # define LOCK_EX 1 | |
1518 | # define LOCK_UN 2 | |
1519 | # define LOCK_SH 4 | |
1520 | # define LOCK_NB 8 | |
1521 | ||
1522 | static int flock (int fd, int operation) | |
1523 | { | |
1524 | long pos, len; | |
1525 | int ret, err; | |
1526 | ||
1527 | /* Disable invalid arguments. */ | |
1528 | if (((operation & (LOCK_EX | LOCK_SH)) == (LOCK_EX | LOCK_SH)) || | |
1529 | ((operation & (LOCK_EX | LOCK_UN)) == (LOCK_EX | LOCK_UN)) || | |
1530 | ((operation & (LOCK_SH | LOCK_UN)) == (LOCK_SH | LOCK_UN))) | |
1531 | { | |
1532 | errno = EINVAL; | |
1533 | return -1; | |
1534 | } | |
1535 | ||
1536 | /* Determine mode of operation and discard unsupported ones. */ | |
1537 | if (operation == (LOCK_NB | LOCK_EX)) | |
1538 | operation = _LK_NBLCK; | |
1539 | else if (operation & LOCK_UN) | |
1540 | operation = _LK_UNLCK; | |
1541 | else if (operation == LOCK_EX) | |
1542 | operation = _LK_LOCK; | |
1543 | else | |
1544 | { | |
1545 | errno = EINVAL; | |
1546 | return -1; | |
1547 | } | |
1548 | ||
1549 | /* Save current file pointer and seek to beginning. */ | |
1550 | if ((pos = lseek (fd, 0, SEEK_CUR)) == -1 || (len = filelength (fd)) == -1) | |
1551 | return -1; | |
1552 | lseek (fd, 0L, SEEK_SET); | |
1553 | ||
1554 | /* Deadlock if necessary. */ | |
1555 | do | |
1556 | { | |
1557 | ret = _locking (fd, operation, len); | |
1558 | } | |
1559 | while (ret == -1 && errno == EDEADLOCK); | |
1560 | ||
1561 | /* Produce meaningful error message. */ | |
1562 | if (errno == EACCES && operation == _LK_NBLCK) | |
1563 | err = EDEADLOCK; | |
1564 | else | |
1565 | err = errno; | |
1566 | ||
1567 | /* Return to saved file position pointer. */ | |
1568 | lseek (fd, pos, SEEK_SET); | |
1569 | errno = err; | |
1570 | return ret; | |
1571 | } | |
1572 | #endif /* __MINGW32__ */ | |
1573 | ||
1574 | #if HAVE_FLOCK || defined (__MINGW32__) | |
94e6d793 MG |
1575 | SCM_DEFINE (scm_flock, "flock", 2, 0, 0, |
1576 | (SCM file, SCM operation), | |
1577 | "Apply or remove an advisory lock on an open file.\n" | |
1578 | "@var{operation} specifies the action to be done:\n" | |
1579 | "@table @code\n" | |
1580 | "@item LOCK_SH\n" | |
1581 | "Shared lock. More than one process may hold a shared lock\n" | |
1582 | "for a given file at a given time.\n" | |
1583 | "@item LOCK_EX\n" | |
1584 | "Exclusive lock. Only one process may hold an exclusive lock\n" | |
1585 | "for a given file at a given time.\n" | |
1586 | "@item LOCK_UN\n" | |
1587 | "Unlock the file.\n" | |
1588 | "@item LOCK_NB\n" | |
1589 | "Don't block when locking. May be specified by bitwise OR'ing\n" | |
1590 | "it to one of the other operations.\n" | |
1591 | "@end table\n" | |
1592 | "The return value is not specified. @var{file} may be an open\n" | |
bb2c02f2 | 1593 | "file descriptor or an open file descriptor port.") |
94e6d793 MG |
1594 | #define FUNC_NAME s_scm_flock |
1595 | { | |
1596 | int coperation, fdes; | |
1597 | ||
1598 | if (SCM_INUMP (file)) | |
1599 | fdes = SCM_INUM (file); | |
1600 | else | |
1601 | { | |
1602 | SCM_VALIDATE_OPFPORT (2, file); | |
1603 | ||
1604 | fdes = SCM_FPORT_FDES (file); | |
1605 | } | |
1606 | SCM_VALIDATE_INUM_COPY (2, operation, coperation); | |
1607 | if (flock (fdes, coperation) == -1) | |
1608 | SCM_SYSERROR; | |
1609 | return SCM_UNSPECIFIED; | |
1610 | } | |
1611 | #undef FUNC_NAME | |
1612 | #endif /* HAVE_FLOCK */ | |
1613 | ||
1614 | #if HAVE_SETHOSTNAME | |
1615 | SCM_DEFINE (scm_sethostname, "sethostname", 1, 0, 0, | |
1616 | (SCM name), | |
1617 | "Set the host name of the current processor to @var{name}. May\n" | |
1618 | "only be used by the superuser. The return value is not\n" | |
1619 | "specified.") | |
1620 | #define FUNC_NAME s_scm_sethostname | |
1621 | { | |
1622 | SCM_VALIDATE_STRING (1, name); | |
94e6d793 MG |
1623 | |
1624 | if (sethostname (SCM_STRING_CHARS (name), SCM_STRING_LENGTH (name)) == -1) | |
1625 | SCM_SYSERROR; | |
1626 | return SCM_UNSPECIFIED; | |
1627 | } | |
1628 | #undef FUNC_NAME | |
1629 | #endif /* HAVE_SETHOSTNAME */ | |
1630 | ||
1631 | #if HAVE_GETHOSTNAME | |
1632 | SCM_DEFINE (scm_gethostname, "gethostname", 0, 0, 0, | |
1633 | (void), | |
1634 | "Return the host name of the current processor.") | |
1635 | #define FUNC_NAME s_scm_gethostname | |
1636 | { | |
a0f9c651 MG |
1637 | /* 256 is for Solaris, under Linux ENAMETOOLONG is returned if not |
1638 | large enough. */ | |
1639 | int len = 256, res; | |
4c9419ac | 1640 | char *p = scm_malloc (len); |
94e6d793 MG |
1641 | SCM name; |
1642 | ||
1643 | res = gethostname (p, len); | |
1644 | while (res == -1 && errno == ENAMETOOLONG) | |
1645 | { | |
4c9419ac | 1646 | p = scm_realloc (p, len * 2); |
94e6d793 MG |
1647 | len *= 2; |
1648 | res = gethostname (p, len); | |
1649 | } | |
1650 | if (res == -1) | |
1651 | { | |
4c9419ac | 1652 | free (p); |
94e6d793 MG |
1653 | SCM_SYSERROR; |
1654 | } | |
1655 | name = scm_makfrom0str (p); | |
4c9419ac | 1656 | free (p); |
94e6d793 MG |
1657 | return name; |
1658 | } | |
1659 | #undef FUNC_NAME | |
1660 | #endif /* HAVE_GETHOSTNAME */ | |
1661 | ||
0f2d19dd JB |
1662 | void |
1663 | scm_init_posix () | |
0f2d19dd JB |
1664 | { |
1665 | scm_add_feature ("posix"); | |
1666 | #ifdef HAVE_GETEUID | |
1667 | scm_add_feature ("EIDs"); | |
1668 | #endif | |
1669 | #ifdef WAIT_ANY | |
86d31dfe | 1670 | scm_c_define ("WAIT_ANY", SCM_MAKINUM (WAIT_ANY)); |
0f2d19dd JB |
1671 | #endif |
1672 | #ifdef WAIT_MYPGRP | |
86d31dfe | 1673 | scm_c_define ("WAIT_MYPGRP", SCM_MAKINUM (WAIT_MYPGRP)); |
0f2d19dd JB |
1674 | #endif |
1675 | #ifdef WNOHANG | |
86d31dfe | 1676 | scm_c_define ("WNOHANG", SCM_MAKINUM (WNOHANG)); |
0f2d19dd JB |
1677 | #endif |
1678 | #ifdef WUNTRACED | |
86d31dfe | 1679 | scm_c_define ("WUNTRACED", SCM_MAKINUM (WUNTRACED)); |
0f2d19dd JB |
1680 | #endif |
1681 | ||
0f2d19dd | 1682 | /* access() symbols. */ |
86d31dfe MV |
1683 | scm_c_define ("R_OK", SCM_MAKINUM (R_OK)); |
1684 | scm_c_define ("W_OK", SCM_MAKINUM (W_OK)); | |
1685 | scm_c_define ("X_OK", SCM_MAKINUM (X_OK)); | |
1686 | scm_c_define ("F_OK", SCM_MAKINUM (F_OK)); | |
0f2d19dd JB |
1687 | |
1688 | #ifdef LC_COLLATE | |
86d31dfe | 1689 | scm_c_define ("LC_COLLATE", SCM_MAKINUM (LC_COLLATE)); |
0f2d19dd JB |
1690 | #endif |
1691 | #ifdef LC_CTYPE | |
86d31dfe | 1692 | scm_c_define ("LC_CTYPE", SCM_MAKINUM (LC_CTYPE)); |
0f2d19dd JB |
1693 | #endif |
1694 | #ifdef LC_MONETARY | |
86d31dfe | 1695 | scm_c_define ("LC_MONETARY", SCM_MAKINUM (LC_MONETARY)); |
0f2d19dd JB |
1696 | #endif |
1697 | #ifdef LC_NUMERIC | |
86d31dfe | 1698 | scm_c_define ("LC_NUMERIC", SCM_MAKINUM (LC_NUMERIC)); |
0f2d19dd JB |
1699 | #endif |
1700 | #ifdef LC_TIME | |
86d31dfe | 1701 | scm_c_define ("LC_TIME", SCM_MAKINUM (LC_TIME)); |
0f2d19dd JB |
1702 | #endif |
1703 | #ifdef LC_MESSAGES | |
86d31dfe | 1704 | scm_c_define ("LC_MESSAGES", SCM_MAKINUM (LC_MESSAGES)); |
0f2d19dd JB |
1705 | #endif |
1706 | #ifdef LC_ALL | |
86d31dfe | 1707 | scm_c_define ("LC_ALL", SCM_MAKINUM (LC_ALL)); |
0f2d19dd | 1708 | #endif |
bd9e24b3 | 1709 | #ifdef PIPE_BUF |
86d31dfe | 1710 | scm_c_define ("PIPE_BUF", scm_long2num (PIPE_BUF)); |
bd9e24b3 GH |
1711 | #endif |
1712 | ||
94e6d793 | 1713 | #ifdef PRIO_PROCESS |
86d31dfe | 1714 | scm_c_define ("PRIO_PROCESS", SCM_MAKINUM (PRIO_PROCESS)); |
94e6d793 MG |
1715 | #endif |
1716 | #ifdef PRIO_PGRP | |
86d31dfe | 1717 | scm_c_define ("PRIO_PGRP", SCM_MAKINUM (PRIO_PGRP)); |
94e6d793 MG |
1718 | #endif |
1719 | #ifdef PRIO_USER | |
86d31dfe | 1720 | scm_c_define ("PRIO_USER", SCM_MAKINUM (PRIO_USER)); |
94e6d793 MG |
1721 | #endif |
1722 | ||
1723 | #ifdef LOCK_SH | |
86d31dfe | 1724 | scm_c_define ("LOCK_SH", SCM_MAKINUM (LOCK_SH)); |
94e6d793 MG |
1725 | #endif |
1726 | #ifdef LOCK_EX | |
86d31dfe | 1727 | scm_c_define ("LOCK_EX", SCM_MAKINUM (LOCK_EX)); |
94e6d793 MG |
1728 | #endif |
1729 | #ifdef LOCK_UN | |
86d31dfe | 1730 | scm_c_define ("LOCK_UN", SCM_MAKINUM (LOCK_UN)); |
94e6d793 MG |
1731 | #endif |
1732 | #ifdef LOCK_NB | |
86d31dfe | 1733 | scm_c_define ("LOCK_NB", SCM_MAKINUM (LOCK_NB)); |
94e6d793 MG |
1734 | #endif |
1735 | ||
a0599745 MD |
1736 | #include "libguile/cpp_sig_symbols.c" |
1737 | #include "libguile/posix.x" | |
0f2d19dd | 1738 | } |
89e00824 ML |
1739 | |
1740 | /* | |
1741 | Local Variables: | |
1742 | c-file-style: "gnu" | |
1743 | End: | |
1744 | */ |