Commit | Line | Data |
---|---|---|
bd9e24b3 | 1 | /* Copyright (C) 1996, 1997, 1998, 1999, 2000 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 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
0f2d19dd | 45 | \f |
3d8d56df | 46 | #include <stdio.h> |
a0599745 MD |
47 | #include "libguile/_scm.h" |
48 | #include "libguile/smob.h" | |
49 | #include "libguile/feature.h" | |
50 | #include "libguile/fports.h" | |
51 | #include "libguile/iselect.h" | |
52 | #include "libguile/strings.h" | |
53 | #include "libguile/vectors.h" | |
0f2d19dd | 54 | |
a0599745 MD |
55 | #include "libguile/validate.h" |
56 | #include "libguile/filesys.h" | |
def804a3 | 57 | |
0f2d19dd | 58 | \f |
def804a3 JB |
59 | #ifdef HAVE_IO_H |
60 | #include <io.h> | |
61 | #endif | |
62 | ||
0f2d19dd JB |
63 | #ifdef TIME_WITH_SYS_TIME |
64 | # include <sys/time.h> | |
65 | # include <time.h> | |
66 | #else | |
67 | # if HAVE_SYS_TIME_H | |
68 | # include <sys/time.h> | |
69 | # else | |
70 | # include <time.h> | |
71 | # endif | |
72 | #endif | |
73 | ||
74 | #ifdef HAVE_UNISTD_H | |
75 | #include <unistd.h> | |
76 | #endif | |
77 | ||
3594582b | 78 | #ifdef LIBC_H_WITH_UNISTD_H |
1f9e2226 JB |
79 | #include <libc.h> |
80 | #endif | |
81 | ||
0f2d19dd JB |
82 | #ifdef HAVE_SYS_SELECT_H |
83 | #include <sys/select.h> | |
84 | #endif | |
85 | ||
1f9e2226 JB |
86 | #ifdef HAVE_STRING_H |
87 | #include <string.h> | |
88 | #endif | |
89 | ||
8cc71382 | 90 | #include <sys/types.h> |
0f2d19dd JB |
91 | #include <sys/stat.h> |
92 | #include <fcntl.h> | |
93 | ||
94 | #include <pwd.h> | |
95 | ||
96 | ||
0f2d19dd JB |
97 | #if HAVE_DIRENT_H |
98 | # include <dirent.h> | |
99 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
100 | #else | |
101 | # define dirent direct | |
102 | # define NAMLEN(dirent) (dirent)->d_namlen | |
103 | # if HAVE_SYS_NDIR_H | |
104 | # include <sys/ndir.h> | |
105 | # endif | |
106 | # if HAVE_SYS_DIR_H | |
107 | # include <sys/dir.h> | |
108 | # endif | |
109 | # if HAVE_NDIR_H | |
110 | # include <ndir.h> | |
111 | # endif | |
112 | #endif | |
113 | ||
d7b8a21a JB |
114 | /* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */ |
115 | #if defined (S_IFSOCK) && ! defined (S_ISSOCK) | |
116 | #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) | |
117 | #endif | |
0f2d19dd JB |
118 | \f |
119 | ||
0f2d19dd JB |
120 | |
121 | \f | |
122 | ||
123 | /* {Permissions} | |
124 | */ | |
125 | ||
a1ec6916 | 126 | SCM_DEFINE (scm_chown, "chown", 3, 0, 0, |
1bbd0b84 | 127 | (SCM object, SCM owner, SCM group), |
d831b039 GH |
128 | "Change the ownership and group of the file referred to by @var{object} to\n" |
129 | "the integer values @var{owner} and @var{group}. @var{object} can be\n" | |
130 | "a string containing a file name or, if the platform\n" | |
131 | "supports fchown, a port or integer file descriptor\n" | |
132 | "which is open on the file. The return value\n" | |
d3818c29 | 133 | "is unspecified.\n\n" |
d831b039 | 134 | "If @var{object} is a symbolic link, either the\n" |
d3818c29 MD |
135 | "ownership of the link or the ownership of the referenced file will be\n" |
136 | "changed depending on the operating system (lchown is\n" | |
137 | "unsupported at present). If @var{owner} or @var{group} is specified\n" | |
138 | "as @code{-1}, then that ID is not changed.") | |
1bbd0b84 | 139 | #define FUNC_NAME s_scm_chown |
0f2d19dd | 140 | { |
6afcd3b2 | 141 | int rv; |
02b754d3 | 142 | |
78446828 MV |
143 | object = SCM_COERCE_OUTPORT (object); |
144 | ||
3b3b36dd GB |
145 | SCM_VALIDATE_INUM (2,owner); |
146 | SCM_VALIDATE_INUM (3,group); | |
d831b039 | 147 | #ifdef HAVE_FCHOWN |
0c95b57d | 148 | if (SCM_INUMP (object) || (SCM_OPFPORTP (object))) |
6afcd3b2 | 149 | { |
d831b039 GH |
150 | int fdes = SCM_INUMP (object) ? SCM_INUM (object) |
151 | : SCM_FPORT_FDES (object); | |
152 | ||
6afcd3b2 GH |
153 | SCM_SYSCALL (rv = fchown (fdes, SCM_INUM (owner), SCM_INUM (group))); |
154 | } | |
155 | else | |
d831b039 | 156 | #endif |
6afcd3b2 | 157 | { |
c1bfcf60 | 158 | SCM_VALIDATE_ROSTRING(1,object); |
6afcd3b2 GH |
159 | SCM_COERCE_SUBSTR (object); |
160 | SCM_SYSCALL (rv = chown (SCM_ROCHARS (object), | |
161 | SCM_INUM (owner), SCM_INUM (group))); | |
162 | } | |
163 | if (rv == -1) | |
1bbd0b84 | 164 | SCM_SYSERROR; |
02b754d3 | 165 | return SCM_UNSPECIFIED; |
0f2d19dd | 166 | } |
1bbd0b84 | 167 | #undef FUNC_NAME |
0f2d19dd JB |
168 | |
169 | ||
a1ec6916 | 170 | SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0, |
1bbd0b84 | 171 | (SCM object, SCM mode), |
d3818c29 MD |
172 | "Changes the permissions of the file referred to by @var{obj}.\n" |
173 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
174 | "descriptor which is open on a file (in which case @code{fchmod} is used\n" | |
175 | "as the underlying system call).\n" | |
176 | "@var{mode} specifies\n" | |
177 | "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n" | |
178 | "The return value is unspecified.") | |
1bbd0b84 | 179 | #define FUNC_NAME s_scm_chmod |
0f2d19dd JB |
180 | { |
181 | int rv; | |
6afcd3b2 GH |
182 | int fdes; |
183 | ||
78446828 MV |
184 | object = SCM_COERCE_OUTPORT (object); |
185 | ||
3b3b36dd | 186 | SCM_VALIDATE_INUM (2,mode); |
0c95b57d | 187 | if (SCM_INUMP (object) || SCM_OPFPORTP (object)) |
89958ad0 | 188 | { |
6afcd3b2 GH |
189 | if (SCM_INUMP (object)) |
190 | fdes = SCM_INUM (object); | |
191 | else | |
77a76b64 | 192 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 | 193 | SCM_SYSCALL (rv = fchmod (fdes, SCM_INUM (mode))); |
89958ad0 | 194 | } |
0f2d19dd JB |
195 | else |
196 | { | |
3b3b36dd | 197 | SCM_VALIDATE_ROSTRING (1,object); |
6afcd3b2 GH |
198 | SCM_COERCE_SUBSTR (object); |
199 | SCM_SYSCALL (rv = chmod (SCM_ROCHARS (object), SCM_INUM (mode))); | |
0f2d19dd | 200 | } |
6afcd3b2 | 201 | if (rv == -1) |
1bbd0b84 | 202 | SCM_SYSERROR; |
02b754d3 | 203 | return SCM_UNSPECIFIED; |
0f2d19dd | 204 | } |
1bbd0b84 | 205 | #undef FUNC_NAME |
0f2d19dd | 206 | |
a1ec6916 | 207 | SCM_DEFINE (scm_umask, "umask", 0, 1, 0, |
1bbd0b84 | 208 | (SCM mode), |
d3818c29 MD |
209 | "If @var{mode} is omitted, retuns a decimal number representing the current\n" |
210 | "file creation mask. Otherwise the file creation mask is set to\n" | |
211 | "@var{mode} and the previous value is returned.\n\n" | |
212 | "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.") | |
1bbd0b84 | 213 | #define FUNC_NAME s_scm_umask |
0f2d19dd JB |
214 | { |
215 | mode_t mask; | |
216 | if (SCM_UNBNDP (mode)) | |
217 | { | |
218 | mask = umask (0); | |
219 | umask (mask); | |
220 | } | |
221 | else | |
222 | { | |
3b3b36dd | 223 | SCM_VALIDATE_INUM (1,mode); |
0f2d19dd JB |
224 | mask = umask (SCM_INUM (mode)); |
225 | } | |
226 | return SCM_MAKINUM (mask); | |
227 | } | |
1bbd0b84 | 228 | #undef FUNC_NAME |
0f2d19dd JB |
229 | |
230 | \f | |
0f2d19dd | 231 | |
a1ec6916 | 232 | SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0, |
1bbd0b84 | 233 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
234 | "Similar to @code{open} but returns a file descriptor instead of a\n" |
235 | "port.") | |
1bbd0b84 | 236 | #define FUNC_NAME s_scm_open_fdes |
0f2d19dd JB |
237 | { |
238 | int fd; | |
3d8d56df | 239 | int iflags; |
6afcd3b2 | 240 | int imode; |
0f2d19dd | 241 | |
3b3b36dd | 242 | SCM_VALIDATE_ROSTRING (1,path); |
6afcd3b2 | 243 | SCM_COERCE_SUBSTR (path); |
c1bfcf60 GB |
244 | iflags = SCM_NUM2LONG(2,flags); |
245 | imode = SCM_NUM2LONG_DEF(3,mode,0666); | |
6afcd3b2 | 246 | SCM_SYSCALL (fd = open (SCM_ROCHARS (path), iflags, imode)); |
3d8d56df | 247 | if (fd == -1) |
1bbd0b84 | 248 | SCM_SYSERROR; |
6afcd3b2 GH |
249 | return SCM_MAKINUM (fd); |
250 | } | |
1bbd0b84 | 251 | #undef FUNC_NAME |
6afcd3b2 | 252 | |
a1ec6916 | 253 | SCM_DEFINE (scm_open, "open", 2, 1, 0, |
1bbd0b84 | 254 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
255 | "Open the file named by @var{path} for reading and/or writing.\n" |
256 | "@var{flags} is an integer specifying how the file should be opened.\n" | |
257 | "@var{mode} is an integer specifying the permission bits of the file, if\n" | |
258 | "it needs to be created, before the umask is applied. The default is 666\n" | |
259 | "(Unix itself has no default).\n\n" | |
260 | "@var{flags} can be constructed by combining variables using @code{logior}.\n" | |
261 | "Basic flags are:\n\n" | |
262 | "@defvar O_RDONLY\n" | |
263 | "Open the file read-only.\n" | |
264 | "@end defvar\n" | |
265 | "@defvar O_WRONLY\n" | |
266 | "Open the file write-only. \n" | |
267 | "@end defvar\n" | |
268 | "@defvar O_RDWR\n" | |
269 | "Open the file read/write.\n" | |
270 | "@end defvar\n" | |
271 | "@defvar O_APPEND\n" | |
272 | "Append to the file instead of truncating.\n" | |
273 | "@end defvar\n" | |
274 | "@defvar O_CREAT\n" | |
275 | "Create the file if it does not already exist.\n" | |
276 | "@end defvar\n\n" | |
277 | "See the Unix documentation of the @code{open} system call\n" | |
278 | "for additional flags.") | |
1bbd0b84 | 279 | #define FUNC_NAME s_scm_open |
6afcd3b2 GH |
280 | { |
281 | SCM newpt; | |
282 | char *port_mode; | |
283 | int fd; | |
6afcd3b2 GH |
284 | int iflags; |
285 | ||
286 | fd = SCM_INUM (scm_open_fdes (path, flags, mode)); | |
c1bfcf60 | 287 | iflags = SCM_NUM2LONG (2,flags); |
3d8d56df | 288 | if (iflags & O_RDWR) |
77a76b64 JB |
289 | { |
290 | if (iflags & O_APPEND) | |
291 | port_mode = "a+"; | |
292 | else if (iflags & O_CREAT) | |
293 | port_mode = "w+"; | |
294 | else | |
295 | port_mode = "r+"; | |
296 | } | |
3d8d56df | 297 | else { |
77a76b64 JB |
298 | if (iflags & O_APPEND) |
299 | port_mode = "a"; | |
300 | else if (iflags & O_WRONLY) | |
3d8d56df GH |
301 | port_mode = "w"; |
302 | else | |
303 | port_mode = "r"; | |
304 | } | |
77a76b64 | 305 | newpt = scm_fdes_to_port (fd, port_mode, path); |
3d8d56df | 306 | return newpt; |
0f2d19dd | 307 | } |
1bbd0b84 | 308 | #undef FUNC_NAME |
0f2d19dd | 309 | |
a1ec6916 | 310 | SCM_DEFINE (scm_close, "close", 1, 0, 0, |
1bbd0b84 | 311 | (SCM fd_or_port), |
d3818c29 MD |
312 | "Similar to close-port (@pxref{Generic Port Operations, close-port}),\n" |
313 | "but also works on file descriptors. A side\n" | |
314 | "effect of closing a file descriptor is that any ports using that file\n" | |
315 | "descriptor are moved to a different file descriptor and have\n" | |
316 | "their revealed counts set to zero.") | |
1bbd0b84 | 317 | #define FUNC_NAME s_scm_close |
eadd48de GH |
318 | { |
319 | int rv; | |
320 | int fd; | |
321 | ||
78446828 MV |
322 | fd_or_port = SCM_COERCE_OUTPORT (fd_or_port); |
323 | ||
0c95b57d | 324 | if (SCM_PORTP (fd_or_port)) |
eadd48de | 325 | return scm_close_port (fd_or_port); |
3b3b36dd | 326 | SCM_VALIDATE_INUM (1,fd_or_port); |
eadd48de | 327 | fd = SCM_INUM (fd_or_port); |
eadd48de | 328 | scm_evict_ports (fd); /* see scsh manual. */ |
a9488d12 | 329 | SCM_SYSCALL (rv = close (fd)); |
eadd48de GH |
330 | /* following scsh, closing an already closed file descriptor is |
331 | not an error. */ | |
332 | if (rv < 0 && errno != EBADF) | |
1bbd0b84 GB |
333 | SCM_SYSERROR; |
334 | return SCM_NEGATE_BOOL(rv < 0); | |
eadd48de | 335 | } |
1bbd0b84 | 336 | #undef FUNC_NAME |
eadd48de | 337 | |
0f2d19dd JB |
338 | \f |
339 | /* {Files} | |
340 | */ | |
1cc91f1b | 341 | |
ae5253c5 GH |
342 | SCM_SYMBOL (scm_sym_regular, "regular"); |
343 | SCM_SYMBOL (scm_sym_directory, "directory"); | |
f326ecf3 | 344 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 345 | SCM_SYMBOL (scm_sym_symlink, "symlink"); |
f326ecf3 | 346 | #endif |
ae5253c5 GH |
347 | SCM_SYMBOL (scm_sym_block_special, "block-special"); |
348 | SCM_SYMBOL (scm_sym_char_special, "char-special"); | |
349 | SCM_SYMBOL (scm_sym_fifo, "fifo"); | |
350 | SCM_SYMBOL (scm_sym_sock, "socket"); | |
351 | SCM_SYMBOL (scm_sym_unknown, "unknown"); | |
352 | ||
0f2d19dd | 353 | static SCM |
1bbd0b84 | 354 | scm_stat2scm (struct stat *stat_temp) |
0f2d19dd | 355 | { |
a8741caa | 356 | SCM ans = scm_make_vector (SCM_MAKINUM (15), SCM_UNSPECIFIED); |
0f2d19dd | 357 | SCM *ve = SCM_VELTS (ans); |
ae5253c5 | 358 | |
0f2d19dd JB |
359 | ve[0] = scm_ulong2num ((unsigned long) stat_temp->st_dev); |
360 | ve[1] = scm_ulong2num ((unsigned long) stat_temp->st_ino); | |
361 | ve[2] = scm_ulong2num ((unsigned long) stat_temp->st_mode); | |
362 | ve[3] = scm_ulong2num ((unsigned long) stat_temp->st_nlink); | |
363 | ve[4] = scm_ulong2num ((unsigned long) stat_temp->st_uid); | |
364 | ve[5] = scm_ulong2num ((unsigned long) stat_temp->st_gid); | |
365 | #ifdef HAVE_ST_RDEV | |
366 | ve[6] = scm_ulong2num ((unsigned long) stat_temp->st_rdev); | |
367 | #else | |
368 | ve[6] = SCM_BOOL_F; | |
369 | #endif | |
370 | ve[7] = scm_ulong2num ((unsigned long) stat_temp->st_size); | |
371 | ve[8] = scm_ulong2num ((unsigned long) stat_temp->st_atime); | |
372 | ve[9] = scm_ulong2num ((unsigned long) stat_temp->st_mtime); | |
373 | ve[10] = scm_ulong2num ((unsigned long) stat_temp->st_ctime); | |
374 | #ifdef HAVE_ST_BLKSIZE | |
375 | ve[11] = scm_ulong2num ((unsigned long) stat_temp->st_blksize); | |
376 | #else | |
377 | ve[11] = scm_ulong2num (4096L); | |
378 | #endif | |
379 | #ifdef HAVE_ST_BLOCKS | |
380 | ve[12] = scm_ulong2num ((unsigned long) stat_temp->st_blocks); | |
381 | #else | |
382 | ve[12] = SCM_BOOL_F; | |
383 | #endif | |
ae5253c5 GH |
384 | { |
385 | int mode = stat_temp->st_mode; | |
386 | ||
387 | if (S_ISREG (mode)) | |
388 | ve[13] = scm_sym_regular; | |
389 | else if (S_ISDIR (mode)) | |
390 | ve[13] = scm_sym_directory; | |
f326ecf3 | 391 | #ifdef HAVE_S_ISLNK |
ae5253c5 GH |
392 | else if (S_ISLNK (mode)) |
393 | ve[13] = scm_sym_symlink; | |
f326ecf3 | 394 | #endif |
ae5253c5 GH |
395 | else if (S_ISBLK (mode)) |
396 | ve[13] = scm_sym_block_special; | |
397 | else if (S_ISCHR (mode)) | |
398 | ve[13] = scm_sym_char_special; | |
399 | else if (S_ISFIFO (mode)) | |
400 | ve[13] = scm_sym_fifo; | |
e655d034 | 401 | #ifdef S_ISSOCK |
ae5253c5 GH |
402 | else if (S_ISSOCK (mode)) |
403 | ve[13] = scm_sym_sock; | |
e655d034 | 404 | #endif |
ae5253c5 GH |
405 | else |
406 | ve[13] = scm_sym_unknown; | |
407 | ||
408 | ve[14] = SCM_MAKINUM ((~S_IFMT) & mode); | |
409 | ||
410 | /* the layout of the bits in ve[14] is intended to be portable. | |
411 | If there are systems that don't follow the usual convention, | |
412 | the following could be used: | |
413 | ||
414 | tmp = 0; | |
415 | if (S_ISUID & mode) tmp += 1; | |
416 | tmp <<= 1; | |
417 | if (S_IRGRP & mode) tmp += 1; | |
418 | tmp <<= 1; | |
419 | if (S_ISVTX & mode) tmp += 1; | |
420 | tmp <<= 1; | |
421 | if (S_IRUSR & mode) tmp += 1; | |
422 | tmp <<= 1; | |
423 | if (S_IWUSR & mode) tmp += 1; | |
424 | tmp <<= 1; | |
425 | if (S_IXUSR & mode) tmp += 1; | |
426 | tmp <<= 1; | |
427 | if (S_IWGRP & mode) tmp += 1; | |
428 | tmp <<= 1; | |
429 | if (S_IXGRP & mode) tmp += 1; | |
430 | tmp <<= 1; | |
431 | if (S_IROTH & mode) tmp += 1; | |
432 | tmp <<= 1; | |
433 | if (S_IWOTH & mode) tmp += 1; | |
434 | tmp <<= 1; | |
435 | if (S_IXOTH & mode) tmp += 1; | |
436 | ||
437 | ve[14] = SCM_MAKINUM (tmp); | |
438 | ||
439 | */ | |
440 | } | |
0f2d19dd JB |
441 | |
442 | return ans; | |
443 | } | |
444 | ||
a1ec6916 | 445 | SCM_DEFINE (scm_stat, "stat", 1, 0, 0, |
1bbd0b84 | 446 | (SCM object), |
d3818c29 MD |
447 | "Returns an object containing various information\n" |
448 | "about the file determined by @var{obj}.\n" | |
449 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
450 | "descriptor which is open on a file (in which case @code{fstat} is used\n" | |
451 | "as the underlying system call).\n\n" | |
452 | "The object returned by @code{stat} can be passed as a single parameter\n" | |
453 | "to the following procedures, all of which return integers:\n\n" | |
454 | "@table @code\n" | |
455 | "@item stat:dev\n" | |
456 | "The device containing the file.\n" | |
457 | "@item stat:ino\n" | |
458 | "The file serial number, which distinguishes this file from all other\n" | |
459 | "files on the same device.\n" | |
460 | "@item stat:mode\n" | |
461 | "The mode of the file. This includes file type information\n" | |
462 | "and the file permission bits. See @code{stat:type} and @code{stat:perms}\n" | |
463 | "below.\n" | |
464 | "@item stat:nlink\n" | |
465 | "The number of hard links to the file.\n" | |
466 | "@item stat:uid\n" | |
467 | "The user ID of the file's owner.\n" | |
468 | "@item stat:gid\n" | |
469 | "The group ID of the file.\n" | |
470 | "@item stat:rdev\n" | |
471 | "Device ID; this entry is defined only for character or block\n" | |
472 | "special files.\n" | |
473 | "@item stat:size\n" | |
474 | "The size of a regular file in bytes.\n" | |
475 | "@item stat:atime\n" | |
476 | "The last access time for the file.\n" | |
477 | "@item stat:mtime\n" | |
478 | "The last modification time for the file.\n" | |
479 | "@item stat:ctime\n" | |
480 | "The last modification time for the attributes of the file.\n" | |
481 | "@item stat:blksize\n" | |
482 | "The optimal block size for reading or writing the file, in bytes.\n" | |
483 | "@item stat:blocks\n" | |
484 | "The amount of disk space that the file occupies measured in units of\n" | |
485 | "512 byte blocks.\n" | |
486 | "@end table\n\n" | |
487 | "In addition, the following procedures return the information\n" | |
488 | "from stat:mode in a more convenient form:\n\n" | |
489 | "@table @code\n" | |
490 | "@item stat:type\n" | |
491 | "A symbol representing the type of file. Possible values are\n" | |
492 | "regular, directory, symlink, block-special, char-special,\n" | |
493 | "fifo, socket and unknown\n" | |
494 | "@item stat:perms\n" | |
495 | "An integer representing the access permission bits.\n" | |
496 | "@end table") | |
1bbd0b84 | 497 | #define FUNC_NAME s_scm_stat |
0f2d19dd | 498 | { |
6afcd3b2 GH |
499 | int rv; |
500 | int fdes; | |
0f2d19dd JB |
501 | struct stat stat_temp; |
502 | ||
1ea47048 MD |
503 | if (SCM_INUMP (object)) |
504 | SCM_SYSCALL (rv = fstat (SCM_INUM (object), &stat_temp)); | |
505 | else | |
0f2d19dd | 506 | { |
6b5a304f | 507 | SCM_VALIDATE_NIM (1,object); |
1ea47048 MD |
508 | if (SCM_ROSTRINGP (object)) |
509 | { | |
510 | SCM_COERCE_SUBSTR (object); | |
511 | SCM_SYSCALL (rv = stat (SCM_ROCHARS (object), &stat_temp)); | |
512 | } | |
c0ebd8c5 | 513 | else |
0f2d19dd | 514 | { |
1ea47048 | 515 | object = SCM_COERCE_OUTPORT (object); |
c1bfcf60 | 516 | SCM_VALIDATE_OPFPORT(1,object); |
77a76b64 | 517 | fdes = SCM_FPORT_FDES (object); |
1ea47048 | 518 | SCM_SYSCALL (rv = fstat (fdes, &stat_temp)); |
0f2d19dd | 519 | } |
6afcd3b2 GH |
520 | } |
521 | if (rv == -1) | |
3d8d56df GH |
522 | { |
523 | int en = errno; | |
524 | ||
5d2d2ffc | 525 | SCM_SYSERROR_MSG ("~A: ~S", |
3d8d56df | 526 | scm_listify (scm_makfrom0str (strerror (errno)), |
6afcd3b2 | 527 | object, |
5d2d2ffc | 528 | SCM_UNDEFINED), en); |
3d8d56df | 529 | } |
02b754d3 | 530 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 531 | } |
1bbd0b84 | 532 | #undef FUNC_NAME |
0f2d19dd | 533 | |
0f2d19dd JB |
534 | \f |
535 | /* {Modifying Directories} | |
536 | */ | |
537 | ||
a1ec6916 | 538 | SCM_DEFINE (scm_link, "link", 2, 0, 0, |
1bbd0b84 | 539 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
540 | "Creates a new name @var{path-to} in the file system for the file\n" |
541 | "named by @var{path-from}. If @var{path-from} is a symbolic link, the\n" | |
542 | "link may or may not be followed depending on the system.") | |
1bbd0b84 | 543 | #define FUNC_NAME s_scm_link |
0f2d19dd JB |
544 | { |
545 | int val; | |
02b754d3 | 546 | |
3b3b36dd | 547 | SCM_VALIDATE_ROSTRING (1,oldpath); |
0f2d19dd | 548 | if (SCM_SUBSTRP (oldpath)) |
6afcd3b2 GH |
549 | oldpath = scm_makfromstr (SCM_ROCHARS (oldpath), |
550 | SCM_ROLENGTH (oldpath), 0); | |
3b3b36dd | 551 | SCM_VALIDATE_ROSTRING (2,newpath); |
0f2d19dd | 552 | if (SCM_SUBSTRP (newpath)) |
6afcd3b2 GH |
553 | newpath = scm_makfromstr (SCM_ROCHARS (newpath), |
554 | SCM_ROLENGTH (newpath), 0); | |
0f2d19dd | 555 | SCM_SYSCALL (val = link (SCM_ROCHARS (oldpath), SCM_ROCHARS (newpath))); |
02b754d3 | 556 | if (val != 0) |
1bbd0b84 | 557 | SCM_SYSERROR; |
02b754d3 | 558 | return SCM_UNSPECIFIED; |
0f2d19dd | 559 | } |
1bbd0b84 | 560 | #undef FUNC_NAME |
0f2d19dd JB |
561 | |
562 | ||
563 | ||
a1ec6916 | 564 | SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, |
1bbd0b84 | 565 | (SCM oldname, SCM newname), |
d3818c29 MD |
566 | "Renames the file specified by @var{path-from} to @var{path-to}.\n" |
567 | "The return value is unspecified.") | |
1bbd0b84 | 568 | #define FUNC_NAME s_scm_rename |
0f2d19dd JB |
569 | { |
570 | int rv; | |
3b3b36dd GB |
571 | SCM_VALIDATE_ROSTRING (1,oldname); |
572 | SCM_VALIDATE_ROSTRING (2,newname); | |
89958ad0 JB |
573 | SCM_COERCE_SUBSTR (oldname); |
574 | SCM_COERCE_SUBSTR (newname); | |
0f2d19dd | 575 | #ifdef HAVE_RENAME |
89958ad0 | 576 | SCM_SYSCALL (rv = rename (SCM_ROCHARS (oldname), SCM_ROCHARS (newname))); |
0f2d19dd | 577 | #else |
89958ad0 | 578 | SCM_SYSCALL (rv = link (SCM_ROCHARS (oldname), SCM_ROCHARS (newname))); |
02b754d3 | 579 | if (rv == 0) |
0f2d19dd | 580 | { |
89958ad0 | 581 | SCM_SYSCALL (rv = unlink (SCM_ROCHARS (oldname)));; |
02b754d3 | 582 | if (rv != 0) |
0f2d19dd | 583 | /* unlink failed. remove new name */ |
89958ad0 | 584 | SCM_SYSCALL (unlink (SCM_ROCHARS (newname))); |
0f2d19dd | 585 | } |
6afcd3b2 | 586 | #endif |
02b754d3 | 587 | if (rv != 0) |
1bbd0b84 | 588 | SCM_SYSERROR; |
02b754d3 | 589 | return SCM_UNSPECIFIED; |
0f2d19dd | 590 | } |
1bbd0b84 | 591 | #undef FUNC_NAME |
0f2d19dd JB |
592 | |
593 | ||
3b3b36dd | 594 | SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, |
1bbd0b84 | 595 | (SCM str), |
d3818c29 | 596 | "Deletes (or \"unlinks\") the file specified by @var{path}.") |
1bbd0b84 | 597 | #define FUNC_NAME s_scm_delete_file |
2f3ed1ba JB |
598 | { |
599 | int ans; | |
3b3b36dd | 600 | SCM_VALIDATE_ROSTRING (1,str); |
89958ad0 JB |
601 | SCM_COERCE_SUBSTR (str); |
602 | SCM_SYSCALL (ans = unlink (SCM_ROCHARS (str))); | |
2f3ed1ba | 603 | if (ans != 0) |
1bbd0b84 | 604 | SCM_SYSERROR; |
2f3ed1ba JB |
605 | return SCM_UNSPECIFIED; |
606 | } | |
1bbd0b84 | 607 | #undef FUNC_NAME |
2f3ed1ba | 608 | |
f25f761d | 609 | #ifdef HAVE_MKDIR |
a1ec6916 | 610 | SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0, |
1bbd0b84 | 611 | (SCM path, SCM mode), |
d3818c29 MD |
612 | "Create a new directory named by @var{path}. If @var{mode} is omitted\n" |
613 | "then the permissions of the directory file are set using the current\n" | |
614 | "umask. Otherwise they are set to the decimal value specified with\n" | |
615 | "@var{mode}. The return value is unspecified.") | |
1bbd0b84 | 616 | #define FUNC_NAME s_scm_mkdir |
0f2d19dd | 617 | { |
0f2d19dd JB |
618 | int rv; |
619 | mode_t mask; | |
3b3b36dd | 620 | SCM_VALIDATE_ROSTRING (1,path); |
89958ad0 | 621 | SCM_COERCE_SUBSTR (path); |
0f2d19dd JB |
622 | if (SCM_UNBNDP (mode)) |
623 | { | |
624 | mask = umask (0); | |
625 | umask (mask); | |
89958ad0 | 626 | SCM_SYSCALL (rv = mkdir (SCM_ROCHARS (path), 0777 ^ mask)); |
0f2d19dd JB |
627 | } |
628 | else | |
629 | { | |
3b3b36dd | 630 | SCM_VALIDATE_INUM (2,mode); |
89958ad0 | 631 | SCM_SYSCALL (rv = mkdir (SCM_ROCHARS (path), SCM_INUM (mode))); |
0f2d19dd | 632 | } |
02b754d3 | 633 | if (rv != 0) |
1bbd0b84 | 634 | SCM_SYSERROR; |
02b754d3 | 635 | return SCM_UNSPECIFIED; |
0f2d19dd | 636 | } |
1bbd0b84 | 637 | #undef FUNC_NAME |
f25f761d | 638 | #endif /* HAVE_MKDIR */ |
0f2d19dd | 639 | |
f25f761d | 640 | #ifdef HAVE_RMDIR |
a1ec6916 | 641 | SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0, |
1bbd0b84 | 642 | (SCM path), |
d3818c29 MD |
643 | "Remove the existing directory named by @var{path}. The directory must\n" |
644 | "be empty for this to succeed. The return value is unspecified.") | |
1bbd0b84 | 645 | #define FUNC_NAME s_scm_rmdir |
0f2d19dd | 646 | { |
0f2d19dd | 647 | int val; |
02b754d3 | 648 | |
3b3b36dd | 649 | SCM_VALIDATE_ROSTRING (1,path); |
89958ad0 JB |
650 | SCM_COERCE_SUBSTR (path); |
651 | SCM_SYSCALL (val = rmdir (SCM_ROCHARS (path))); | |
02b754d3 | 652 | if (val != 0) |
1bbd0b84 | 653 | SCM_SYSERROR; |
02b754d3 | 654 | return SCM_UNSPECIFIED; |
0f2d19dd | 655 | } |
1bbd0b84 | 656 | #undef FUNC_NAME |
f25f761d | 657 | #endif |
0f2d19dd JB |
658 | |
659 | \f | |
660 | /* {Examining Directories} | |
661 | */ | |
662 | ||
663 | long scm_tc16_dir; | |
664 | ||
a1ec6916 | 665 | SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0, |
1bbd0b84 | 666 | (SCM obj), |
d3818c29 MD |
667 | "Returns a boolean indicating whether @var{object} is a directory stream\n" |
668 | "as returned by @code{opendir}.") | |
1bbd0b84 | 669 | #define FUNC_NAME s_scm_directory_stream_p |
77242ff9 | 670 | { |
0c95b57d | 671 | return SCM_BOOL(SCM_DIRP (obj)); |
77242ff9 | 672 | } |
1bbd0b84 | 673 | #undef FUNC_NAME |
77242ff9 | 674 | |
a1ec6916 | 675 | SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0, |
1bbd0b84 | 676 | (SCM dirname), |
d3818c29 MD |
677 | "Open the directory specified by @var{path} and return a directory\n" |
678 | "stream.") | |
1bbd0b84 | 679 | #define FUNC_NAME s_scm_opendir |
0f2d19dd JB |
680 | { |
681 | DIR *ds; | |
3b3b36dd | 682 | SCM_VALIDATE_ROSTRING (1,dirname); |
89958ad0 | 683 | SCM_COERCE_SUBSTR (dirname); |
89958ad0 | 684 | SCM_SYSCALL (ds = opendir (SCM_ROCHARS (dirname))); |
02b754d3 | 685 | if (ds == NULL) |
1bbd0b84 | 686 | SCM_SYSERROR; |
23a62151 | 687 | SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_OPN, ds); |
0f2d19dd | 688 | } |
1bbd0b84 | 689 | #undef FUNC_NAME |
0f2d19dd JB |
690 | |
691 | ||
a1ec6916 | 692 | SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0, |
1bbd0b84 | 693 | (SCM port), |
d3818c29 MD |
694 | "Return (as a string) the next directory entry from the directory stream\n" |
695 | "@var{stream}. If there is no remaining entry to be read then the\n" | |
696 | "end of file object is returned.") | |
1bbd0b84 | 697 | #define FUNC_NAME s_scm_readdir |
0f2d19dd JB |
698 | { |
699 | struct dirent *rdent; | |
3b3b36dd | 700 | SCM_VALIDATE_OPDIR (1,port); |
0f2d19dd | 701 | errno = 0; |
4260a7fc | 702 | SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CELL_WORD_1 (port))); |
02b754d3 | 703 | if (errno != 0) |
1bbd0b84 | 704 | SCM_SYSERROR; |
02b754d3 GH |
705 | return (rdent ? scm_makfromstr (rdent->d_name, NAMLEN (rdent), 0) |
706 | : SCM_EOF_VAL); | |
0f2d19dd | 707 | } |
1bbd0b84 | 708 | #undef FUNC_NAME |
0f2d19dd JB |
709 | |
710 | ||
711 | ||
a1ec6916 | 712 | SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0, |
1bbd0b84 | 713 | (SCM port), |
d3818c29 MD |
714 | "Reset the directory port @var{stream} so that the next call to\n" |
715 | "@code{readdir} will return the first directory entry.") | |
1bbd0b84 | 716 | #define FUNC_NAME s_scm_rewinddir |
0f2d19dd | 717 | { |
3b3b36dd | 718 | SCM_VALIDATE_OPDIR (1,port); |
4260a7fc | 719 | rewinddir ((DIR *) SCM_CELL_WORD_1 (port)); |
0f2d19dd JB |
720 | return SCM_UNSPECIFIED; |
721 | } | |
1bbd0b84 | 722 | #undef FUNC_NAME |
0f2d19dd JB |
723 | |
724 | ||
725 | ||
a1ec6916 | 726 | SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0, |
1bbd0b84 | 727 | (SCM port), |
d3818c29 MD |
728 | "Close the directory stream @var{stream}.\n" |
729 | "The return value is unspecified.") | |
1bbd0b84 | 730 | #define FUNC_NAME s_scm_closedir |
0f2d19dd JB |
731 | { |
732 | int sts; | |
02b754d3 | 733 | |
3b3b36dd | 734 | SCM_VALIDATE_DIR (1,port); |
0f2d19dd JB |
735 | if (SCM_CLOSEDP (port)) |
736 | { | |
02b754d3 | 737 | return SCM_UNSPECIFIED; |
0f2d19dd | 738 | } |
4260a7fc | 739 | SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port))); |
02b754d3 | 740 | if (sts != 0) |
1bbd0b84 | 741 | SCM_SYSERROR; |
4260a7fc | 742 | SCM_SET_CELL_WORD_0 (port, scm_tc16_dir); |
02b754d3 | 743 | return SCM_UNSPECIFIED; |
0f2d19dd | 744 | } |
1bbd0b84 | 745 | #undef FUNC_NAME |
0f2d19dd JB |
746 | |
747 | ||
748 | ||
1cc91f1b | 749 | |
0f2d19dd | 750 | static int |
f8b16091 | 751 | scm_dir_print (SCM exp, SCM port, scm_print_state *pstate) |
0f2d19dd | 752 | { |
f8b16091 MD |
753 | scm_puts ("#<", port); |
754 | if (SCM_CLOSEDP (exp)) | |
755 | scm_puts ("closed: ", port); | |
0d03da62 | 756 | scm_puts ("directory stream ", port); |
4260a7fc | 757 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); |
f8b16091 | 758 | scm_putc ('>', port); |
0f2d19dd JB |
759 | return 1; |
760 | } | |
761 | ||
1cc91f1b | 762 | |
0f2d19dd | 763 | static scm_sizet |
1bbd0b84 | 764 | scm_dir_free (SCM p) |
0f2d19dd JB |
765 | { |
766 | if (SCM_OPENP (p)) | |
4260a7fc | 767 | closedir ((DIR *) SCM_CELL_WORD_1 (p)); |
0f2d19dd JB |
768 | return 0; |
769 | } | |
770 | ||
0f2d19dd JB |
771 | \f |
772 | /* {Navigating Directories} | |
773 | */ | |
774 | ||
775 | ||
a1ec6916 | 776 | SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0, |
1bbd0b84 | 777 | (SCM str), |
d3818c29 MD |
778 | "Change the current working directory to @var{path}.\n" |
779 | "The return value is unspecified.") | |
1bbd0b84 | 780 | #define FUNC_NAME s_scm_chdir |
0f2d19dd JB |
781 | { |
782 | int ans; | |
02b754d3 | 783 | |
3b3b36dd | 784 | SCM_VALIDATE_ROSTRING (1,str); |
89958ad0 JB |
785 | SCM_COERCE_SUBSTR (str); |
786 | SCM_SYSCALL (ans = chdir (SCM_ROCHARS (str))); | |
02b754d3 | 787 | if (ans != 0) |
1bbd0b84 | 788 | SCM_SYSERROR; |
02b754d3 | 789 | return SCM_UNSPECIFIED; |
0f2d19dd | 790 | } |
1bbd0b84 | 791 | #undef FUNC_NAME |
0f2d19dd | 792 | |
f25f761d | 793 | #ifdef HAVE_GETCWD |
a1ec6916 | 794 | SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0, |
1bbd0b84 | 795 | (), |
d3818c29 | 796 | "Returns the name of the current working directory.") |
1bbd0b84 | 797 | #define FUNC_NAME s_scm_getcwd |
0f2d19dd | 798 | { |
0f2d19dd | 799 | char *rv; |
0f2d19dd JB |
800 | scm_sizet size = 100; |
801 | char *wd; | |
802 | SCM result; | |
803 | ||
1bbd0b84 | 804 | wd = scm_must_malloc (size, FUNC_NAME); |
0f2d19dd JB |
805 | while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE) |
806 | { | |
807 | scm_must_free (wd); | |
808 | size *= 2; | |
1bbd0b84 | 809 | wd = scm_must_malloc (size, FUNC_NAME); |
0f2d19dd | 810 | } |
02b754d3 | 811 | if (rv == 0) |
1bbd0b84 | 812 | SCM_SYSERROR; |
02b754d3 | 813 | result = scm_makfromstr (wd, strlen (wd), 0); |
0f2d19dd | 814 | scm_must_free (wd); |
0f2d19dd | 815 | return result; |
0f2d19dd | 816 | } |
1bbd0b84 | 817 | #undef FUNC_NAME |
f25f761d | 818 | #endif /* HAVE_GETCWD */ |
0f2d19dd JB |
819 | |
820 | \f | |
821 | ||
28d77376 GH |
822 | #ifdef HAVE_SELECT |
823 | ||
824 | /* check that element is a port or file descriptor. if it's a port | |
825 | and its buffer is ready for use, add it to the ports_ready list. | |
826 | otherwise add its file descriptor to *set. the type of list can be | |
827 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
828 | SCM_ARG3 for excepts. */ | |
cafc12ff | 829 | static int |
28d77376 | 830 | set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos) |
a48a89bc | 831 | { |
cafc12ff | 832 | int fd; |
d831b039 | 833 | |
28d77376 GH |
834 | if (SCM_INUMP (element)) |
835 | { | |
836 | fd = SCM_INUM (element); | |
837 | } | |
838 | else | |
839 | { | |
840 | int use_buf = 0; | |
841 | ||
842 | element = SCM_COERCE_OUTPORT (element); | |
843 | SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select"); | |
844 | if (pos == SCM_ARG1) | |
845 | { | |
846 | /* check whether port has buffered input. */ | |
847 | scm_port *pt = SCM_PTAB_ENTRY (element); | |
848 | ||
849 | if (pt->read_pos < pt->read_end) | |
850 | use_buf = 1; | |
851 | } | |
852 | else if (pos == SCM_ARG2) | |
853 | { | |
854 | /* check whether port's output buffer has room. */ | |
855 | scm_port *pt = SCM_PTAB_ENTRY (element); | |
856 | ||
857 | /* > 1 since writing the last byte in the buffer causes flush. */ | |
858 | if (pt->write_end - pt->write_pos > 1) | |
859 | use_buf = 1; | |
860 | } | |
861 | fd = use_buf ? -1 : SCM_FPORT_FDES (element); | |
862 | } | |
863 | if (fd == -1) | |
864 | *ports_ready = scm_cons (element, *ports_ready); | |
865 | else | |
866 | FD_SET (fd, set); | |
cafc12ff | 867 | return fd; |
a48a89bc | 868 | } |
1cc91f1b | 869 | |
28d77376 GH |
870 | /* check list_or_vec, a list or vector of ports or file descriptors, |
871 | adding each member to either the ports_ready list (if it's a port | |
872 | with a usable buffer) or to *set. the kind of list_or_vec can be | |
873 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
874 | SCM_ARG3 for excepts. */ | |
cafc12ff | 875 | static int |
28d77376 | 876 | fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos) |
0f2d19dd | 877 | { |
28d77376 GH |
878 | int max_fd = 0; |
879 | ||
880 | if (SCM_VECTORP (list_or_vec)) | |
0f2d19dd | 881 | { |
28d77376 GH |
882 | int i = SCM_LENGTH (list_or_vec); |
883 | SCM *ve = SCM_VELTS (list_or_vec); | |
a48a89bc | 884 | |
28d77376 | 885 | while (--i >= 0) |
a48a89bc | 886 | { |
28d77376 GH |
887 | int fd = set_element (set, ports_ready, ve[i], pos); |
888 | ||
cafc12ff MD |
889 | if (fd > max_fd) |
890 | max_fd = fd; | |
a48a89bc GH |
891 | } |
892 | } | |
893 | else | |
894 | { | |
4260a7fc | 895 | while (!SCM_NULLP (list_or_vec)) |
a48a89bc | 896 | { |
28d77376 GH |
897 | int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos); |
898 | ||
cafc12ff MD |
899 | if (fd > max_fd) |
900 | max_fd = fd; | |
28d77376 | 901 | list_or_vec = SCM_CDR (list_or_vec); |
a48a89bc | 902 | } |
0f2d19dd | 903 | } |
cafc12ff MD |
904 | |
905 | return max_fd; | |
0f2d19dd JB |
906 | } |
907 | ||
28d77376 GH |
908 | /* if element (a file descriptor or port) appears in *set, cons it to |
909 | list. return list. */ | |
a48a89bc GH |
910 | static SCM |
911 | get_element (SELECT_TYPE *set, SCM element, SCM list) | |
912 | { | |
28d77376 GH |
913 | int fd; |
914 | ||
915 | if (SCM_INUMP (element)) | |
a48a89bc | 916 | { |
28d77376 | 917 | fd = SCM_INUM (element); |
a48a89bc | 918 | } |
28d77376 | 919 | else |
a48a89bc | 920 | { |
28d77376 | 921 | fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element)); |
a48a89bc | 922 | } |
28d77376 GH |
923 | if (FD_ISSET (fd, set)) |
924 | list = scm_cons (element, list); | |
a48a89bc GH |
925 | return list; |
926 | } | |
1cc91f1b | 927 | |
28d77376 GH |
928 | /* construct component of scm_select return value. |
929 | set: pointer to set of file descriptors found by select to be ready | |
930 | ports_ready: ports ready due to buffering | |
931 | list_or_vec: original list/vector handed to scm_select. | |
932 | the return value is a list/vector of ready ports/file descriptors. | |
933 | works by finding the objects in list which correspond to members of | |
934 | *set and appending them to ports_ready. result is converted to a | |
935 | vector if list_or_vec is a vector. */ | |
0f2d19dd | 936 | static SCM |
28d77376 | 937 | retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec) |
0f2d19dd | 938 | { |
28d77376 | 939 | SCM answer_list = ports_ready; |
a48a89bc | 940 | |
28d77376 | 941 | if (SCM_VECTORP (list_or_vec)) |
0f2d19dd | 942 | { |
28d77376 GH |
943 | int i = SCM_LENGTH (list_or_vec); |
944 | SCM *ve = SCM_VELTS (list_or_vec); | |
a48a89bc | 945 | |
28d77376 | 946 | while (--i >= 0) |
0f2d19dd | 947 | { |
28d77376 | 948 | answer_list = get_element (set, ve[i], answer_list); |
0f2d19dd | 949 | } |
a48a89bc GH |
950 | return scm_vector (answer_list); |
951 | } | |
952 | else | |
953 | { | |
28d77376 | 954 | /* list_or_vec must be a list. */ |
4260a7fc | 955 | while (!SCM_NULLP (list_or_vec)) |
0f2d19dd | 956 | { |
28d77376 GH |
957 | answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list); |
958 | list_or_vec = SCM_CDR (list_or_vec); | |
0f2d19dd | 959 | } |
a48a89bc | 960 | return answer_list; |
0f2d19dd | 961 | } |
0f2d19dd JB |
962 | } |
963 | ||
1bbd0b84 | 964 | /* Static helper functions above refer to s_scm_select directly as s_select */ |
a1ec6916 | 965 | SCM_DEFINE (scm_select, "select", 3, 2, 0, |
1bbd0b84 | 966 | (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs), |
28d77376 GH |
967 | "This procedure has a variety of uses: waiting for the ability\n" |
968 | "to provide input, accept output, or the existance of\n" | |
969 | "exceptional conditions on a collection of ports or file\n" | |
970 | "descriptors, or waiting for a timeout to occur.\n" | |
971 | "It also returns if interrupted by a signal.\n\n" | |
972 | "@var{reads}, @var{writes} and @var{excepts} can be lists or\n" | |
973 | "vectors, with each member a port or a file descriptor.\n" | |
974 | "The value returned is a list of three corresponding\n" | |
975 | "lists or vectors containing only the members which meet the\n" | |
976 | "specified requirement. The ability of port buffers to\n" | |
977 | "provide input or accept output is taken into account.\n" | |
978 | "Ordering of the input lists or vectors is not preserved.\n\n" | |
979 | "The optional arguments @var{secs} and @var{usecs} specify the\n" | |
980 | "timeout. Either @var{secs} can be specified alone, as\n" | |
981 | "either an integer or a real number, or both @var{secs} and\n" | |
982 | "@var{usecs} can be specified as integers, in which case\n" | |
983 | "@var{usecs} is an additional timeout expressed in\n" | |
984 | "microseconds. If @var{secs} is omitted or is @code{#f} then\n" | |
985 | "select will wait for as long as it takes for one of the other\n" | |
986 | "conditions to be satisfied.\n\n" | |
987 | "The scsh version of @code{select} differs as follows:\n" | |
988 | "Only vectors are accepted for the first three arguments.\n" | |
989 | "The @var{usecs} argument is not supported.\n" | |
990 | "Multiple values are returned instead of a list.\n" | |
991 | "Duplicates in the input vectors appear only once in output.\n" | |
992 | "An additional @code{select!} interface is provided.\n" | |
993 | ) | |
1bbd0b84 | 994 | #define FUNC_NAME s_scm_select |
0f2d19dd | 995 | { |
0f2d19dd | 996 | struct timeval timeout; |
28d77376 | 997 | struct timeval * time_ptr; |
0f2d19dd JB |
998 | SELECT_TYPE read_set; |
999 | SELECT_TYPE write_set; | |
1000 | SELECT_TYPE except_set; | |
28d77376 GH |
1001 | int read_count; |
1002 | int write_count; | |
1003 | int except_count; | |
1004 | /* these lists accumulate ports which are ready due to buffering. | |
1005 | their file descriptors don't need to be added to the select sets. */ | |
1006 | SCM read_ports_ready = SCM_EOL; | |
1007 | SCM write_ports_ready = SCM_EOL; | |
1008 | int max_fd; | |
1009 | ||
1010 | if (SCM_VECTORP (reads)) | |
1011 | { | |
1012 | read_count = SCM_LENGTH (reads); | |
1013 | } | |
1014 | else | |
1015 | { | |
1016 | read_count = scm_ilength (reads); | |
1017 | SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME); | |
1018 | } | |
1019 | if (SCM_VECTORP (writes)) | |
1020 | { | |
1021 | write_count = SCM_LENGTH (writes); | |
1022 | } | |
1023 | else | |
1024 | { | |
1025 | write_count = scm_ilength (writes); | |
1026 | SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME); | |
1027 | } | |
1028 | if (SCM_VECTORP (excepts)) | |
1029 | { | |
1030 | except_count = SCM_LENGTH (excepts); | |
1031 | } | |
1032 | else | |
1033 | { | |
1034 | except_count = scm_ilength (excepts); | |
1035 | SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME); | |
1036 | } | |
0f2d19dd JB |
1037 | |
1038 | FD_ZERO (&read_set); | |
1039 | FD_ZERO (&write_set); | |
1040 | FD_ZERO (&except_set); | |
1041 | ||
28d77376 GH |
1042 | max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1); |
1043 | ||
1044 | { | |
1045 | int write_max = fill_select_type (&write_set, &write_ports_ready, | |
1046 | writes, SCM_ARG2); | |
1047 | int except_max = fill_select_type (&except_set, NULL, | |
1048 | excepts, SCM_ARG3); | |
1049 | ||
1050 | if (write_max > max_fd) | |
1051 | max_fd = write_max; | |
1052 | if (except_max > max_fd) | |
1053 | max_fd = except_max; | |
1054 | } | |
0f2d19dd | 1055 | |
ae1b098b GH |
1056 | /* if there's a port with a ready buffer, don't block, just |
1057 | check for ready file descriptors. */ | |
4260a7fc | 1058 | if (!SCM_NULLP (read_ports_ready) || !SCM_NULLP (write_ports_ready)) |
ae1b098b GH |
1059 | { |
1060 | timeout.tv_sec = 0; | |
1061 | timeout.tv_usec = 0; | |
1062 | time_ptr = &timeout; | |
1063 | } | |
1064 | else if (SCM_UNBNDP (secs) || SCM_FALSEP (secs)) | |
28d77376 | 1065 | time_ptr = 0; |
0f2d19dd JB |
1066 | else |
1067 | { | |
ae1b098b | 1068 | if (SCM_INUMP (secs)) |
a48a89bc GH |
1069 | { |
1070 | timeout.tv_sec = SCM_INUM (secs); | |
1071 | if (SCM_UNBNDP (usecs)) | |
1072 | timeout.tv_usec = 0; | |
1073 | else | |
1074 | { | |
3b3b36dd | 1075 | SCM_VALIDATE_INUM (5,usecs); |
a48a89bc GH |
1076 | timeout.tv_usec = SCM_INUM (usecs); |
1077 | } | |
1078 | } | |
0f2d19dd | 1079 | else |
a48a89bc | 1080 | { |
1bbd0b84 | 1081 | double fl = scm_num2dbl (secs, FUNC_NAME); |
a48a89bc GH |
1082 | |
1083 | if (!SCM_UNBNDP (usecs)) | |
c1bfcf60 | 1084 | SCM_WRONG_TYPE_ARG (4, secs); |
a48a89bc | 1085 | if (fl > LONG_MAX) |
c1bfcf60 | 1086 | SCM_OUT_OF_RANGE (4, secs); |
a48a89bc GH |
1087 | timeout.tv_sec = (long) fl; |
1088 | timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000); | |
1089 | } | |
28d77376 | 1090 | time_ptr = &timeout; |
0f2d19dd JB |
1091 | } |
1092 | ||
28d77376 | 1093 | { |
44e8413c | 1094 | #ifdef GUILE_ISELECT |
28d77376 GH |
1095 | int rv = scm_internal_select (max_fd + 1, |
1096 | &read_set, &write_set, &except_set, | |
1097 | time_ptr); | |
44e8413c | 1098 | #else |
28d77376 GH |
1099 | int rv = select (max_fd + 1, |
1100 | &read_set, &write_set, &except_set, time_ptr); | |
44e8413c | 1101 | #endif |
28d77376 GH |
1102 | if (rv < 0) |
1103 | SCM_SYSERROR; | |
1104 | } | |
1105 | return scm_listify (retrieve_select_type (&read_set, read_ports_ready, | |
1106 | reads), | |
1107 | retrieve_select_type (&write_set, write_ports_ready, | |
1108 | writes), | |
1109 | retrieve_select_type (&except_set, SCM_EOL, excepts), | |
02b754d3 | 1110 | SCM_UNDEFINED); |
0f2d19dd | 1111 | } |
1bbd0b84 | 1112 | #undef FUNC_NAME |
f25f761d | 1113 | #endif /* HAVE_SELECT */ |
0f2d19dd JB |
1114 | |
1115 | \f | |
4c1feaa5 | 1116 | |
af45e3b0 | 1117 | SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0, |
1bbd0b84 | 1118 | (SCM object, SCM cmd, SCM value), |
d3818c29 MD |
1119 | "Apply @var{command} to the specified file descriptor or the underlying\n" |
1120 | "file descriptor of the specified port. @var{value} is an optional\n" | |
1121 | "integer argument.\n\n" | |
1122 | "Values for @var{command} are:\n\n" | |
1123 | "@table @code\n" | |
1124 | "@item F_DUPFD\n" | |
1125 | "Duplicate a file descriptor\n" | |
1126 | "@item F_GETFD\n" | |
1127 | "Get flags associated with the file descriptor.\n" | |
1128 | "@item F_SETFD\n" | |
1129 | "Set flags associated with the file descriptor to @var{value}.\n" | |
1130 | "@item F_GETFL\n" | |
1131 | "Get flags associated with the open file.\n" | |
1132 | "@item F_SETFL\n" | |
1133 | "Set flags associated with the open file to @var{value}\n" | |
1134 | "@item F_GETOWN\n" | |
1135 | "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n" | |
1136 | "@item F_SETOWN\n" | |
1137 | "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n" | |
1138 | "@item FD_CLOEXEC\n" | |
55892d87 NJ |
1139 | "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n" |
1140 | "@code{F_SETFL}.\n" | |
a3c8b9fc | 1141 | "@end table") |
1bbd0b84 | 1142 | #define FUNC_NAME s_scm_fcntl |
4c1feaa5 JB |
1143 | { |
1144 | int rv; | |
6afcd3b2 GH |
1145 | int fdes; |
1146 | int ivalue; | |
4c1feaa5 | 1147 | |
78446828 MV |
1148 | object = SCM_COERCE_OUTPORT (object); |
1149 | ||
3b3b36dd | 1150 | SCM_VALIDATE_INUM (2,cmd); |
0c95b57d | 1151 | if (SCM_OPFPORTP (object)) |
77a76b64 | 1152 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1153 | else |
1154 | { | |
3b3b36dd | 1155 | SCM_VALIDATE_INUM (1,object); |
6afcd3b2 GH |
1156 | fdes = SCM_INUM (object); |
1157 | } | |
af45e3b0 DH |
1158 | |
1159 | if (SCM_UNBNDP (value)) { | |
6afcd3b2 | 1160 | ivalue = 0; |
af45e3b0 DH |
1161 | } else { |
1162 | SCM_VALIDATE_INUM_COPY (SCM_ARG3, value, ivalue); | |
1163 | } | |
1164 | ||
77a76b64 JB |
1165 | SCM_SYSCALL (rv = fcntl (fdes, SCM_INUM (cmd), ivalue)); |
1166 | if (rv == -1) | |
1bbd0b84 | 1167 | SCM_SYSERROR; |
4c1feaa5 JB |
1168 | return SCM_MAKINUM (rv); |
1169 | } | |
1bbd0b84 | 1170 | #undef FUNC_NAME |
6afcd3b2 | 1171 | |
a1ec6916 | 1172 | SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0, |
1bbd0b84 | 1173 | (SCM object), |
d3818c29 MD |
1174 | "Copies any unwritten data for the specified output file descriptor to disk.\n" |
1175 | "If @var{port/fd} is a port, its buffer is flushed before the underlying\n" | |
1176 | "file descriptor is fsync'd.\n" | |
1177 | "The return value is unspecified.") | |
1bbd0b84 | 1178 | #define FUNC_NAME s_scm_fsync |
6afcd3b2 GH |
1179 | { |
1180 | int fdes; | |
1181 | ||
78446828 MV |
1182 | object = SCM_COERCE_OUTPORT (object); |
1183 | ||
0c95b57d | 1184 | if (SCM_OPFPORTP (object)) |
6afcd3b2 | 1185 | { |
affc96b5 | 1186 | scm_flush (object); |
77a76b64 | 1187 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1188 | } |
1189 | else | |
1190 | { | |
3b3b36dd | 1191 | SCM_VALIDATE_INUM (1,object); |
6afcd3b2 GH |
1192 | fdes = SCM_INUM (object); |
1193 | } | |
1194 | if (fsync (fdes) == -1) | |
1bbd0b84 | 1195 | SCM_SYSERROR; |
6afcd3b2 GH |
1196 | return SCM_UNSPECIFIED; |
1197 | } | |
1bbd0b84 | 1198 | #undef FUNC_NAME |
0f2d19dd | 1199 | |
f25f761d | 1200 | #ifdef HAVE_SYMLINK |
a1ec6916 | 1201 | SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0, |
1bbd0b84 | 1202 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
1203 | "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n" |
1204 | "@var{path-from}. The return value is unspecified.") | |
1bbd0b84 | 1205 | #define FUNC_NAME s_scm_symlink |
0f2d19dd | 1206 | { |
0f2d19dd | 1207 | int val; |
02b754d3 | 1208 | |
3b3b36dd GB |
1209 | SCM_VALIDATE_ROSTRING (1,oldpath); |
1210 | SCM_VALIDATE_ROSTRING (2,newpath); | |
89958ad0 JB |
1211 | SCM_COERCE_SUBSTR (oldpath); |
1212 | SCM_COERCE_SUBSTR (newpath); | |
1213 | SCM_SYSCALL (val = symlink(SCM_ROCHARS(oldpath), SCM_ROCHARS(newpath))); | |
02b754d3 | 1214 | if (val != 0) |
1bbd0b84 | 1215 | SCM_SYSERROR; |
02b754d3 | 1216 | return SCM_UNSPECIFIED; |
0f2d19dd | 1217 | } |
1bbd0b84 | 1218 | #undef FUNC_NAME |
f25f761d | 1219 | #endif /* HAVE_SYMLINK */ |
0f2d19dd | 1220 | |
f25f761d | 1221 | #ifdef HAVE_READLINK |
a1ec6916 | 1222 | SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0, |
1bbd0b84 | 1223 | (SCM path), |
d3818c29 MD |
1224 | "Returns the value of the symbolic link named by\n" |
1225 | "@var{path} (a string), i.e., the\n" | |
1226 | "file that the link points to.") | |
1bbd0b84 | 1227 | #define FUNC_NAME s_scm_readlink |
0f2d19dd | 1228 | { |
6a738a25 JB |
1229 | int rv; |
1230 | int size = 100; | |
0f2d19dd JB |
1231 | char *buf; |
1232 | SCM result; | |
3b3b36dd | 1233 | SCM_VALIDATE_ROSTRING (1,path); |
89958ad0 | 1234 | SCM_COERCE_SUBSTR (path); |
1bbd0b84 | 1235 | buf = scm_must_malloc (size, FUNC_NAME); |
6a738a25 | 1236 | while ((rv = readlink (SCM_ROCHARS (path), buf, size)) == size) |
0f2d19dd JB |
1237 | { |
1238 | scm_must_free (buf); | |
1239 | size *= 2; | |
1bbd0b84 | 1240 | buf = scm_must_malloc (size, FUNC_NAME); |
0f2d19dd | 1241 | } |
02b754d3 | 1242 | if (rv == -1) |
1bbd0b84 | 1243 | SCM_SYSERROR; |
02b754d3 | 1244 | result = scm_makfromstr (buf, rv, 0); |
0f2d19dd | 1245 | scm_must_free (buf); |
0f2d19dd | 1246 | return result; |
0f2d19dd | 1247 | } |
1bbd0b84 | 1248 | #undef FUNC_NAME |
f25f761d | 1249 | #endif /* HAVE_READLINK */ |
0f2d19dd | 1250 | |
f25f761d | 1251 | #ifdef HAVE_LSTAT |
a1ec6916 | 1252 | SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0, |
1bbd0b84 | 1253 | (SCM str), |
d3818c29 MD |
1254 | "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n" |
1255 | "it will return information about a symbolic link itself, not the \n" | |
1256 | "file it points to. @var{path} must be a string.") | |
1bbd0b84 | 1257 | #define FUNC_NAME s_scm_lstat |
0f2d19dd | 1258 | { |
02b754d3 | 1259 | int rv; |
0f2d19dd | 1260 | struct stat stat_temp; |
02b754d3 | 1261 | |
3b3b36dd | 1262 | SCM_VALIDATE_ROSTRING (1,str); |
89958ad0 JB |
1263 | SCM_COERCE_SUBSTR (str); |
1264 | SCM_SYSCALL(rv = lstat(SCM_ROCHARS(str), &stat_temp)); | |
02b754d3 | 1265 | if (rv != 0) |
3d8d56df GH |
1266 | { |
1267 | int en = errno; | |
1268 | ||
5d2d2ffc | 1269 | SCM_SYSERROR_MSG ("~A: ~S", |
3d8d56df GH |
1270 | scm_listify (scm_makfrom0str (strerror (errno)), |
1271 | str, | |
5d2d2ffc | 1272 | SCM_UNDEFINED), en); |
3d8d56df | 1273 | } |
02b754d3 | 1274 | return scm_stat2scm(&stat_temp); |
0f2d19dd | 1275 | } |
1bbd0b84 | 1276 | #undef FUNC_NAME |
f25f761d | 1277 | #endif /* HAVE_LSTAT */ |
0f2d19dd | 1278 | |
a1ec6916 | 1279 | SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0, |
1bbd0b84 | 1280 | (SCM oldfile, SCM newfile), |
d3818c29 MD |
1281 | "Copy the file specified by @var{path-from} to @var{path-to}.\n" |
1282 | "The return value is unspecified.") | |
1bbd0b84 | 1283 | #define FUNC_NAME s_scm_copy_file |
0f2d19dd JB |
1284 | { |
1285 | int oldfd, newfd; | |
1286 | int n; | |
77a76b64 | 1287 | char buf[BUFSIZ]; |
0f2d19dd JB |
1288 | struct stat oldstat; |
1289 | ||
3b3b36dd | 1290 | SCM_VALIDATE_ROSTRING (1,oldfile); |
0f2d19dd JB |
1291 | if (SCM_SUBSTRP (oldfile)) |
1292 | oldfile = scm_makfromstr (SCM_ROCHARS (oldfile), SCM_ROLENGTH (oldfile), 0); | |
3b3b36dd | 1293 | SCM_VALIDATE_ROSTRING (2,newfile); |
0f2d19dd JB |
1294 | if (SCM_SUBSTRP (newfile)) |
1295 | newfile = scm_makfromstr (SCM_ROCHARS (newfile), SCM_ROLENGTH (newfile), 0); | |
1296 | if (stat (SCM_ROCHARS (oldfile), &oldstat) == -1) | |
1bbd0b84 | 1297 | SCM_SYSERROR; |
0f2d19dd JB |
1298 | oldfd = open (SCM_ROCHARS (oldfile), O_RDONLY); |
1299 | if (oldfd == -1) | |
1bbd0b84 | 1300 | SCM_SYSERROR; |
02b754d3 GH |
1301 | |
1302 | /* use POSIX flags instead of 07777?. */ | |
0f2d19dd JB |
1303 | newfd = open (SCM_ROCHARS (newfile), O_WRONLY | O_CREAT | O_TRUNC, |
1304 | oldstat.st_mode & 07777); | |
1305 | if (newfd == -1) | |
1bbd0b84 | 1306 | SCM_SYSERROR; |
02b754d3 | 1307 | |
0f2d19dd JB |
1308 | while ((n = read (oldfd, buf, sizeof buf)) > 0) |
1309 | if (write (newfd, buf, n) != n) | |
1310 | { | |
1311 | close (oldfd); | |
1312 | close (newfd); | |
1bbd0b84 | 1313 | SCM_SYSERROR; |
0f2d19dd JB |
1314 | } |
1315 | close (oldfd); | |
1316 | if (close (newfd) == -1) | |
1bbd0b84 | 1317 | SCM_SYSERROR; |
02b754d3 | 1318 | return SCM_UNSPECIFIED; |
0f2d19dd | 1319 | } |
1bbd0b84 | 1320 | #undef FUNC_NAME |
0f2d19dd JB |
1321 | |
1322 | \f | |
6a738a25 JB |
1323 | /* Filename manipulation */ |
1324 | ||
1325 | SCM scm_dot_string; | |
1326 | ||
a1ec6916 | 1327 | SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0, |
1bbd0b84 | 1328 | (SCM filename), |
d3818c29 | 1329 | "") |
1bbd0b84 | 1330 | #define FUNC_NAME s_scm_dirname |
6a738a25 JB |
1331 | { |
1332 | char *s; | |
1333 | int i, len; | |
3b3b36dd | 1334 | SCM_VALIDATE_ROSTRING (1,filename); |
6a738a25 JB |
1335 | s = SCM_ROCHARS (filename); |
1336 | len = SCM_LENGTH (filename); | |
1337 | i = len - 1; | |
1338 | while (i >= 0 && s[i] == '/') --i; | |
1339 | while (i >= 0 && s[i] != '/') --i; | |
1340 | while (i >= 0 && s[i] == '/') --i; | |
1341 | if (i < 0) | |
1342 | { | |
1343 | if (len > 0 && s[0] == '/') | |
1344 | return scm_make_shared_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); | |
1345 | else | |
1346 | return scm_dot_string; | |
1347 | } | |
1348 | else | |
1349 | return scm_make_shared_substring (filename, SCM_INUM0, SCM_MAKINUM (i + 1)); | |
1350 | } | |
1bbd0b84 | 1351 | #undef FUNC_NAME |
6a738a25 | 1352 | |
a1ec6916 | 1353 | SCM_DEFINE (scm_basename, "basename", 1, 1, 0, |
1bbd0b84 | 1354 | (SCM filename, SCM suffix), |
d3818c29 | 1355 | "") |
1bbd0b84 | 1356 | #define FUNC_NAME s_scm_basename |
6a738a25 JB |
1357 | { |
1358 | char *f, *s = 0; | |
1359 | int i, j, len, end; | |
3b3b36dd | 1360 | SCM_VALIDATE_ROSTRING (1,filename); |
6a738a25 | 1361 | SCM_ASSERT (SCM_UNBNDP (suffix) |
0c95b57d | 1362 | || (SCM_ROSTRINGP (suffix)), |
6a738a25 JB |
1363 | suffix, |
1364 | SCM_ARG2, | |
1bbd0b84 | 1365 | FUNC_NAME); |
6a738a25 JB |
1366 | f = SCM_ROCHARS (filename); |
1367 | if (SCM_UNBNDP (suffix)) | |
1368 | j = -1; | |
1369 | else | |
1370 | { | |
1371 | s = SCM_ROCHARS (suffix); | |
1372 | j = SCM_LENGTH (suffix) - 1; | |
1373 | } | |
1374 | len = SCM_LENGTH (filename); | |
1375 | i = len - 1; | |
1376 | while (i >= 0 && f[i] == '/') --i; | |
1377 | end = i; | |
1378 | while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j; | |
1379 | if (j == -1) | |
1380 | end = i; | |
1381 | while (i >= 0 && f[i] != '/') --i; | |
1382 | if (i == end) | |
1383 | { | |
1384 | if (len > 0 && f[0] == '/') | |
1385 | return scm_make_shared_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); | |
1386 | else | |
1387 | return scm_dot_string; | |
1388 | } | |
1389 | else | |
1390 | return scm_make_shared_substring (filename, | |
1391 | SCM_MAKINUM (i + 1), | |
1392 | SCM_MAKINUM (end + 1)); | |
1393 | } | |
1bbd0b84 | 1394 | #undef FUNC_NAME |
6a738a25 JB |
1395 | |
1396 | ||
1397 | ||
1398 | \f | |
1cc91f1b | 1399 | |
0f2d19dd JB |
1400 | void |
1401 | scm_init_filesys () | |
0f2d19dd | 1402 | { |
23a62151 MD |
1403 | scm_tc16_dir = scm_make_smob_type_mfpe ("directory", 0, |
1404 | NULL, scm_dir_free,scm_dir_print, NULL); | |
0f2d19dd | 1405 | |
a163dda9 MD |
1406 | scm_dot_string = scm_permanent_object (scm_makfrom0str (".")); |
1407 | ||
3d8d56df GH |
1408 | #ifdef O_RDONLY |
1409 | scm_sysintern ("O_RDONLY", scm_long2num (O_RDONLY)); | |
1410 | #endif | |
1411 | #ifdef O_WRONLY | |
1412 | scm_sysintern ("O_WRONLY", scm_long2num (O_WRONLY)); | |
1413 | #endif | |
1414 | #ifdef O_RDWR | |
1415 | scm_sysintern ("O_RDWR", scm_long2num (O_RDWR)); | |
1416 | #endif | |
1417 | #ifdef O_CREAT | |
1418 | scm_sysintern ("O_CREAT", scm_long2num (O_CREAT)); | |
1419 | #endif | |
1420 | #ifdef O_EXCL | |
1421 | scm_sysintern ("O_EXCL", scm_long2num (O_EXCL)); | |
1422 | #endif | |
1423 | #ifdef O_NOCTTY | |
1424 | scm_sysintern ("O_NOCTTY", scm_long2num (O_NOCTTY)); | |
1425 | #endif | |
1426 | #ifdef O_TRUNC | |
1427 | scm_sysintern ("O_TRUNC", scm_long2num (O_TRUNC)); | |
1428 | #endif | |
1429 | #ifdef O_APPEND | |
1430 | scm_sysintern ("O_APPEND", scm_long2num (O_APPEND)); | |
1431 | #endif | |
6afcd3b2 | 1432 | #ifdef O_NONBLOCK |
3d8d56df GH |
1433 | scm_sysintern ("O_NONBLOCK", scm_long2num (O_NONBLOCK)); |
1434 | #endif | |
1435 | #ifdef O_NDELAY | |
1436 | scm_sysintern ("O_NDELAY", scm_long2num (O_NDELAY)); | |
1437 | #endif | |
1438 | #ifdef O_SYNC | |
1439 | scm_sysintern ("O_SYNC", scm_long2num (O_SYNC)); | |
1440 | #endif | |
1441 | ||
4c1feaa5 JB |
1442 | #ifdef F_DUPFD |
1443 | scm_sysintern ("F_DUPFD", scm_long2num (F_DUPFD)); | |
1444 | #endif | |
1445 | #ifdef F_GETFD | |
1446 | scm_sysintern ("F_GETFD", scm_long2num (F_GETFD)); | |
1447 | #endif | |
1448 | #ifdef F_SETFD | |
1449 | scm_sysintern ("F_SETFD", scm_long2num (F_SETFD)); | |
1450 | #endif | |
1451 | #ifdef F_GETFL | |
1452 | scm_sysintern ("F_GETFL", scm_long2num (F_GETFL)); | |
1453 | #endif | |
1454 | #ifdef F_SETFL | |
1455 | scm_sysintern ("F_SETFL", scm_long2num (F_SETFL)); | |
1456 | #endif | |
1457 | #ifdef F_GETOWN | |
1458 | scm_sysintern ("F_GETOWN", scm_long2num (F_GETOWN)); | |
1459 | #endif | |
1460 | #ifdef F_SETOWN | |
1461 | scm_sysintern ("F_SETOWN", scm_long2num (F_SETOWN)); | |
1462 | #endif | |
1463 | #ifdef FD_CLOEXEC | |
1464 | scm_sysintern ("FD_CLOEXEC", scm_long2num (FD_CLOEXEC)); | |
bd9e24b3 | 1465 | #endif |
3d8d56df | 1466 | |
a0599745 | 1467 | #include "libguile/filesys.x" |
0f2d19dd | 1468 | } |
89e00824 ML |
1469 | |
1470 | /* | |
1471 | Local Variables: | |
1472 | c-file-style: "gnu" | |
1473 | End: | |
1474 | */ |