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e4b265d8 | 1 | /* Copyright (C) 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 | 43 | \f |
3d8d56df | 44 | #include <stdio.h> |
e6e2e95a MD |
45 | #include <errno.h> |
46 | ||
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" | |
c96d76b8 | 54 | #include "libguile/lang.h" |
0f2d19dd | 55 | |
a0599745 MD |
56 | #include "libguile/validate.h" |
57 | #include "libguile/filesys.h" | |
def804a3 | 58 | |
0f2d19dd | 59 | \f |
def804a3 JB |
60 | #ifdef HAVE_IO_H |
61 | #include <io.h> | |
62 | #endif | |
63 | ||
e0c73a1c MV |
64 | #ifdef HAVE_DIRECT_H |
65 | #include <direct.h> | |
66 | #endif | |
67 | ||
0f2d19dd JB |
68 | #ifdef TIME_WITH_SYS_TIME |
69 | # include <sys/time.h> | |
70 | # include <time.h> | |
71 | #else | |
72 | # if HAVE_SYS_TIME_H | |
73 | # include <sys/time.h> | |
74 | # else | |
75 | # include <time.h> | |
76 | # endif | |
77 | #endif | |
78 | ||
79 | #ifdef HAVE_UNISTD_H | |
80 | #include <unistd.h> | |
81 | #endif | |
82 | ||
3594582b | 83 | #ifdef LIBC_H_WITH_UNISTD_H |
1f9e2226 JB |
84 | #include <libc.h> |
85 | #endif | |
86 | ||
0f2d19dd JB |
87 | #ifdef HAVE_SYS_SELECT_H |
88 | #include <sys/select.h> | |
89 | #endif | |
90 | ||
1f9e2226 JB |
91 | #ifdef HAVE_STRING_H |
92 | #include <string.h> | |
93 | #endif | |
94 | ||
8cc71382 | 95 | #include <sys/types.h> |
0f2d19dd JB |
96 | #include <sys/stat.h> |
97 | #include <fcntl.h> | |
98 | ||
82893676 | 99 | #ifdef HAVE_PWD_H |
0f2d19dd | 100 | #include <pwd.h> |
82893676 | 101 | #endif |
0f2d19dd JB |
102 | |
103 | ||
e0c73a1c MV |
104 | #if defined (__MINGW32__) || defined (_MSC_VER) || defined (__BORLANDC__) |
105 | # include "win32-dirent.h" | |
106 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
107 | #elif HAVE_DIRENT_H | |
0f2d19dd JB |
108 | # include <dirent.h> |
109 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
110 | #else | |
111 | # define dirent direct | |
112 | # define NAMLEN(dirent) (dirent)->d_namlen | |
113 | # if HAVE_SYS_NDIR_H | |
114 | # include <sys/ndir.h> | |
115 | # endif | |
116 | # if HAVE_SYS_DIR_H | |
117 | # include <sys/dir.h> | |
118 | # endif | |
119 | # if HAVE_NDIR_H | |
120 | # include <ndir.h> | |
121 | # endif | |
122 | #endif | |
123 | ||
d7b8a21a JB |
124 | /* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */ |
125 | #if defined (S_IFSOCK) && ! defined (S_ISSOCK) | |
126 | #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) | |
127 | #endif | |
82893676 MG |
128 | |
129 | /* The MinGW gcc does not define the S_ISSOCK macro. Any other native Windows | |
130 | compiler like BorlandC or MSVC has none of these macros defined. */ | |
131 | #ifdef __MINGW32__ | |
8f99e3f3 SJ |
132 | |
133 | # ifdef _S_IFIFO | |
134 | # undef _S_IFIFO | |
135 | # endif | |
136 | # ifdef _S_IFCHR | |
137 | # undef _S_IFCHR | |
138 | # endif | |
139 | # ifdef _S_IFBLK | |
140 | # undef _S_IFBLK | |
141 | # endif | |
142 | # ifdef _S_IFDIR | |
143 | # undef _S_IFDIR | |
144 | # endif | |
145 | # ifdef _S_IFREG | |
146 | # undef _S_IFREG | |
147 | # endif | |
148 | # ifdef _S_IFSOCK | |
149 | # undef _S_IFSOCK | |
150 | # endif | |
151 | ||
152 | # define _S_IFIFO 0x1000 /* FIFO */ | |
153 | # define _S_IFCHR 0x2000 /* Character */ | |
154 | # define _S_IFBLK 0x3000 /* Block */ | |
155 | # define _S_IFDIR 0x4000 /* Directory */ | |
156 | # define _S_IFREG 0x8000 /* Regular */ | |
157 | # define _S_IFSOCK 0xC000 /* Socket */ | |
158 | ||
159 | # ifdef S_ISBLK | |
160 | # undef S_ISBLK | |
161 | # endif | |
162 | # ifdef S_ISFIFO | |
163 | # undef S_ISFIFO | |
164 | # endif | |
165 | # ifdef S_ISCHR | |
166 | # undef S_ISCHR | |
167 | # endif | |
168 | # ifdef S_ISDIR | |
169 | # undef S_ISDIR | |
170 | # endif | |
171 | # ifdef S_ISREG | |
172 | # undef S_ISREG | |
173 | # endif | |
174 | # ifdef S_ISSOCK | |
175 | # undef S_ISSOCK | |
176 | # endif | |
177 | ||
178 | # define S_ISBLK(mode) (((mode) & _S_IFMT) == _S_IFBLK) | |
82893676 | 179 | # define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO) |
8f99e3f3 SJ |
180 | # define S_ISCHR(mode) (((mode) & _S_IFMT) == _S_IFCHR) |
181 | # define S_ISDIR(mode) (((mode) & _S_IFMT) == _S_IFDIR) | |
182 | # define S_ISREG(mode) (((mode) & _S_IFMT) == _S_IFREG) | |
183 | # define S_ISSOCK(mode) (((mode) & _S_IFMT) == _S_IFSOCK) | |
184 | ||
185 | #endif /* __MINGW32__ */ | |
82893676 MG |
186 | |
187 | /* Some more definitions for the native Windows port. */ | |
188 | #ifdef __MINGW32__ | |
189 | # define mkdir(path, mode) mkdir (path) | |
190 | # define fsync(fd) _commit (fd) | |
191 | # define fchmod(fd, mode) (-1) | |
192 | #endif /* __MINGW32__ */ | |
0f2d19dd JB |
193 | \f |
194 | ||
0f2d19dd JB |
195 | |
196 | \f | |
197 | ||
198 | /* {Permissions} | |
199 | */ | |
200 | ||
82893676 | 201 | #ifdef HAVE_CHOWN |
a1ec6916 | 202 | SCM_DEFINE (scm_chown, "chown", 3, 0, 0, |
1bbd0b84 | 203 | (SCM object, SCM owner, SCM group), |
d831b039 GH |
204 | "Change the ownership and group of the file referred to by @var{object} to\n" |
205 | "the integer values @var{owner} and @var{group}. @var{object} can be\n" | |
206 | "a string containing a file name or, if the platform\n" | |
207 | "supports fchown, a port or integer file descriptor\n" | |
208 | "which is open on the file. The return value\n" | |
d3818c29 | 209 | "is unspecified.\n\n" |
d831b039 | 210 | "If @var{object} is a symbolic link, either the\n" |
d3818c29 MD |
211 | "ownership of the link or the ownership of the referenced file will be\n" |
212 | "changed depending on the operating system (lchown is\n" | |
213 | "unsupported at present). If @var{owner} or @var{group} is specified\n" | |
214 | "as @code{-1}, then that ID is not changed.") | |
1bbd0b84 | 215 | #define FUNC_NAME s_scm_chown |
0f2d19dd | 216 | { |
6afcd3b2 | 217 | int rv; |
02b754d3 | 218 | |
78446828 MV |
219 | object = SCM_COERCE_OUTPORT (object); |
220 | ||
3b3b36dd GB |
221 | SCM_VALIDATE_INUM (2,owner); |
222 | SCM_VALIDATE_INUM (3,group); | |
d831b039 | 223 | #ifdef HAVE_FCHOWN |
0c95b57d | 224 | if (SCM_INUMP (object) || (SCM_OPFPORTP (object))) |
6afcd3b2 | 225 | { |
d831b039 GH |
226 | int fdes = SCM_INUMP (object) ? SCM_INUM (object) |
227 | : SCM_FPORT_FDES (object); | |
228 | ||
6afcd3b2 GH |
229 | SCM_SYSCALL (rv = fchown (fdes, SCM_INUM (owner), SCM_INUM (group))); |
230 | } | |
231 | else | |
d831b039 | 232 | #endif |
6afcd3b2 | 233 | { |
a6d9e5ab | 234 | SCM_VALIDATE_STRING (1, object); |
a6d9e5ab | 235 | SCM_SYSCALL (rv = chown (SCM_STRING_CHARS (object), |
6afcd3b2 GH |
236 | SCM_INUM (owner), SCM_INUM (group))); |
237 | } | |
238 | if (rv == -1) | |
1bbd0b84 | 239 | SCM_SYSERROR; |
02b754d3 | 240 | return SCM_UNSPECIFIED; |
0f2d19dd | 241 | } |
1bbd0b84 | 242 | #undef FUNC_NAME |
82893676 | 243 | #endif /* HAVE_CHOWN */ |
0f2d19dd JB |
244 | |
245 | ||
a1ec6916 | 246 | SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0, |
1bbd0b84 | 247 | (SCM object, SCM mode), |
d3818c29 MD |
248 | "Changes the permissions of the file referred to by @var{obj}.\n" |
249 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
250 | "descriptor which is open on a file (in which case @code{fchmod} is used\n" | |
251 | "as the underlying system call).\n" | |
252 | "@var{mode} specifies\n" | |
253 | "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n" | |
254 | "The return value is unspecified.") | |
1bbd0b84 | 255 | #define FUNC_NAME s_scm_chmod |
0f2d19dd JB |
256 | { |
257 | int rv; | |
6afcd3b2 GH |
258 | int fdes; |
259 | ||
78446828 MV |
260 | object = SCM_COERCE_OUTPORT (object); |
261 | ||
3b3b36dd | 262 | SCM_VALIDATE_INUM (2,mode); |
0c95b57d | 263 | if (SCM_INUMP (object) || SCM_OPFPORTP (object)) |
89958ad0 | 264 | { |
6afcd3b2 GH |
265 | if (SCM_INUMP (object)) |
266 | fdes = SCM_INUM (object); | |
267 | else | |
77a76b64 | 268 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 | 269 | SCM_SYSCALL (rv = fchmod (fdes, SCM_INUM (mode))); |
89958ad0 | 270 | } |
0f2d19dd JB |
271 | else |
272 | { | |
a6d9e5ab | 273 | SCM_VALIDATE_STRING (1, object); |
a6d9e5ab | 274 | SCM_SYSCALL (rv = chmod (SCM_STRING_CHARS (object), SCM_INUM (mode))); |
0f2d19dd | 275 | } |
6afcd3b2 | 276 | if (rv == -1) |
1bbd0b84 | 277 | SCM_SYSERROR; |
02b754d3 | 278 | return SCM_UNSPECIFIED; |
0f2d19dd | 279 | } |
1bbd0b84 | 280 | #undef FUNC_NAME |
0f2d19dd | 281 | |
a1ec6916 | 282 | SCM_DEFINE (scm_umask, "umask", 0, 1, 0, |
1bbd0b84 | 283 | (SCM mode), |
d3818c29 MD |
284 | "If @var{mode} is omitted, retuns a decimal number representing the current\n" |
285 | "file creation mask. Otherwise the file creation mask is set to\n" | |
286 | "@var{mode} and the previous value is returned.\n\n" | |
287 | "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.") | |
1bbd0b84 | 288 | #define FUNC_NAME s_scm_umask |
0f2d19dd JB |
289 | { |
290 | mode_t mask; | |
291 | if (SCM_UNBNDP (mode)) | |
292 | { | |
293 | mask = umask (0); | |
294 | umask (mask); | |
295 | } | |
296 | else | |
297 | { | |
3b3b36dd | 298 | SCM_VALIDATE_INUM (1,mode); |
0f2d19dd JB |
299 | mask = umask (SCM_INUM (mode)); |
300 | } | |
301 | return SCM_MAKINUM (mask); | |
302 | } | |
1bbd0b84 | 303 | #undef FUNC_NAME |
0f2d19dd JB |
304 | |
305 | \f | |
0f2d19dd | 306 | |
a1ec6916 | 307 | SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0, |
1bbd0b84 | 308 | (SCM path, SCM flags, SCM mode), |
1e6808ea MG |
309 | "Similar to @code{open} but return a file descriptor instead of\n" |
310 | "a port.") | |
1bbd0b84 | 311 | #define FUNC_NAME s_scm_open_fdes |
0f2d19dd JB |
312 | { |
313 | int fd; | |
3d8d56df | 314 | int iflags; |
6afcd3b2 | 315 | int imode; |
0f2d19dd | 316 | |
a6d9e5ab | 317 | SCM_VALIDATE_STRING (1, path); |
1be6b49c ML |
318 | iflags = SCM_NUM2INT (2, flags); |
319 | imode = SCM_NUM2INT_DEF (3, mode, 0666); | |
a6d9e5ab | 320 | SCM_SYSCALL (fd = open (SCM_STRING_CHARS (path), iflags, imode)); |
3d8d56df | 321 | if (fd == -1) |
1bbd0b84 | 322 | SCM_SYSERROR; |
6afcd3b2 GH |
323 | return SCM_MAKINUM (fd); |
324 | } | |
1bbd0b84 | 325 | #undef FUNC_NAME |
6afcd3b2 | 326 | |
a1ec6916 | 327 | SCM_DEFINE (scm_open, "open", 2, 1, 0, |
1bbd0b84 | 328 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
329 | "Open the file named by @var{path} for reading and/or writing.\n" |
330 | "@var{flags} is an integer specifying how the file should be opened.\n" | |
331 | "@var{mode} is an integer specifying the permission bits of the file, if\n" | |
332 | "it needs to be created, before the umask is applied. The default is 666\n" | |
333 | "(Unix itself has no default).\n\n" | |
334 | "@var{flags} can be constructed by combining variables using @code{logior}.\n" | |
335 | "Basic flags are:\n\n" | |
336 | "@defvar O_RDONLY\n" | |
337 | "Open the file read-only.\n" | |
338 | "@end defvar\n" | |
339 | "@defvar O_WRONLY\n" | |
9401323e | 340 | "Open the file write-only.\n" |
d3818c29 MD |
341 | "@end defvar\n" |
342 | "@defvar O_RDWR\n" | |
343 | "Open the file read/write.\n" | |
344 | "@end defvar\n" | |
345 | "@defvar O_APPEND\n" | |
346 | "Append to the file instead of truncating.\n" | |
347 | "@end defvar\n" | |
348 | "@defvar O_CREAT\n" | |
349 | "Create the file if it does not already exist.\n" | |
350 | "@end defvar\n\n" | |
351 | "See the Unix documentation of the @code{open} system call\n" | |
352 | "for additional flags.") | |
1bbd0b84 | 353 | #define FUNC_NAME s_scm_open |
6afcd3b2 GH |
354 | { |
355 | SCM newpt; | |
356 | char *port_mode; | |
357 | int fd; | |
6afcd3b2 GH |
358 | int iflags; |
359 | ||
360 | fd = SCM_INUM (scm_open_fdes (path, flags, mode)); | |
1be6b49c | 361 | iflags = SCM_NUM2INT (2, flags); |
3d8d56df | 362 | if (iflags & O_RDWR) |
77a76b64 JB |
363 | { |
364 | if (iflags & O_APPEND) | |
365 | port_mode = "a+"; | |
366 | else if (iflags & O_CREAT) | |
367 | port_mode = "w+"; | |
368 | else | |
369 | port_mode = "r+"; | |
370 | } | |
3d8d56df | 371 | else { |
77a76b64 JB |
372 | if (iflags & O_APPEND) |
373 | port_mode = "a"; | |
374 | else if (iflags & O_WRONLY) | |
3d8d56df GH |
375 | port_mode = "w"; |
376 | else | |
377 | port_mode = "r"; | |
378 | } | |
77a76b64 | 379 | newpt = scm_fdes_to_port (fd, port_mode, path); |
3d8d56df | 380 | return newpt; |
0f2d19dd | 381 | } |
1bbd0b84 | 382 | #undef FUNC_NAME |
0f2d19dd | 383 | |
a1ec6916 | 384 | SCM_DEFINE (scm_close, "close", 1, 0, 0, |
1bbd0b84 | 385 | (SCM fd_or_port), |
8f85c0c6 | 386 | "Similar to close-port (@pxref{Closing, close-port}),\n" |
d3818c29 MD |
387 | "but also works on file descriptors. A side\n" |
388 | "effect of closing a file descriptor is that any ports using that file\n" | |
389 | "descriptor are moved to a different file descriptor and have\n" | |
390 | "their revealed counts set to zero.") | |
1bbd0b84 | 391 | #define FUNC_NAME s_scm_close |
eadd48de GH |
392 | { |
393 | int rv; | |
394 | int fd; | |
395 | ||
78446828 MV |
396 | fd_or_port = SCM_COERCE_OUTPORT (fd_or_port); |
397 | ||
0c95b57d | 398 | if (SCM_PORTP (fd_or_port)) |
eadd48de | 399 | return scm_close_port (fd_or_port); |
3b3b36dd | 400 | SCM_VALIDATE_INUM (1,fd_or_port); |
eadd48de | 401 | fd = SCM_INUM (fd_or_port); |
eadd48de | 402 | scm_evict_ports (fd); /* see scsh manual. */ |
a9488d12 | 403 | SCM_SYSCALL (rv = close (fd)); |
eadd48de GH |
404 | /* following scsh, closing an already closed file descriptor is |
405 | not an error. */ | |
406 | if (rv < 0 && errno != EBADF) | |
1bbd0b84 | 407 | SCM_SYSERROR; |
36284627 | 408 | return SCM_BOOL (rv >= 0); |
eadd48de | 409 | } |
1bbd0b84 | 410 | #undef FUNC_NAME |
eadd48de | 411 | |
c2ca4493 GH |
412 | SCM_DEFINE (scm_close_fdes, "close-fdes", 1, 0, 0, |
413 | (SCM fd), | |
414 | "A simple wrapper for the @code{close} system call.\n" | |
415 | "Close file descriptor @var{fd}, which must be an integer.\n" | |
416 | "Unlike close (@pxref{Ports and File Descriptors, close}),\n" | |
417 | "the file descriptor will be closed even if a port is using it.\n" | |
418 | "The return value is unspecified.") | |
419 | #define FUNC_NAME s_scm_close_fdes | |
420 | { | |
421 | int c_fd; | |
422 | int rv; | |
423 | ||
424 | SCM_VALIDATE_INUM_COPY (1, fd, c_fd); | |
425 | SCM_SYSCALL (rv = close (c_fd)); | |
426 | if (rv < 0) | |
427 | SCM_SYSERROR; | |
428 | return SCM_UNSPECIFIED; | |
429 | } | |
430 | #undef FUNC_NAME | |
431 | ||
0f2d19dd JB |
432 | \f |
433 | /* {Files} | |
434 | */ | |
1cc91f1b | 435 | |
ae5253c5 GH |
436 | SCM_SYMBOL (scm_sym_regular, "regular"); |
437 | SCM_SYMBOL (scm_sym_directory, "directory"); | |
f326ecf3 | 438 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 439 | SCM_SYMBOL (scm_sym_symlink, "symlink"); |
f326ecf3 | 440 | #endif |
ae5253c5 GH |
441 | SCM_SYMBOL (scm_sym_block_special, "block-special"); |
442 | SCM_SYMBOL (scm_sym_char_special, "char-special"); | |
443 | SCM_SYMBOL (scm_sym_fifo, "fifo"); | |
444 | SCM_SYMBOL (scm_sym_sock, "socket"); | |
445 | SCM_SYMBOL (scm_sym_unknown, "unknown"); | |
446 | ||
0f2d19dd | 447 | static SCM |
1bbd0b84 | 448 | scm_stat2scm (struct stat *stat_temp) |
0f2d19dd | 449 | { |
00ffa0e7 | 450 | SCM ans = scm_c_make_vector (15, SCM_UNSPECIFIED); |
0f2d19dd | 451 | SCM *ve = SCM_VELTS (ans); |
ae5253c5 | 452 | |
0f2d19dd JB |
453 | ve[0] = scm_ulong2num ((unsigned long) stat_temp->st_dev); |
454 | ve[1] = scm_ulong2num ((unsigned long) stat_temp->st_ino); | |
455 | ve[2] = scm_ulong2num ((unsigned long) stat_temp->st_mode); | |
456 | ve[3] = scm_ulong2num ((unsigned long) stat_temp->st_nlink); | |
457 | ve[4] = scm_ulong2num ((unsigned long) stat_temp->st_uid); | |
458 | ve[5] = scm_ulong2num ((unsigned long) stat_temp->st_gid); | |
1fd85bc5 | 459 | #ifdef HAVE_STRUCT_STAT_ST_RDEV |
0f2d19dd JB |
460 | ve[6] = scm_ulong2num ((unsigned long) stat_temp->st_rdev); |
461 | #else | |
462 | ve[6] = SCM_BOOL_F; | |
463 | #endif | |
464 | ve[7] = scm_ulong2num ((unsigned long) stat_temp->st_size); | |
465 | ve[8] = scm_ulong2num ((unsigned long) stat_temp->st_atime); | |
466 | ve[9] = scm_ulong2num ((unsigned long) stat_temp->st_mtime); | |
467 | ve[10] = scm_ulong2num ((unsigned long) stat_temp->st_ctime); | |
1fd85bc5 | 468 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
0f2d19dd JB |
469 | ve[11] = scm_ulong2num ((unsigned long) stat_temp->st_blksize); |
470 | #else | |
471 | ve[11] = scm_ulong2num (4096L); | |
472 | #endif | |
1fd85bc5 | 473 | #ifdef HAVE_STRUCT_STAT_ST_BLOCKS |
0f2d19dd JB |
474 | ve[12] = scm_ulong2num ((unsigned long) stat_temp->st_blocks); |
475 | #else | |
476 | ve[12] = SCM_BOOL_F; | |
477 | #endif | |
ae5253c5 GH |
478 | { |
479 | int mode = stat_temp->st_mode; | |
480 | ||
481 | if (S_ISREG (mode)) | |
482 | ve[13] = scm_sym_regular; | |
483 | else if (S_ISDIR (mode)) | |
484 | ve[13] = scm_sym_directory; | |
f326ecf3 | 485 | #ifdef HAVE_S_ISLNK |
ae5253c5 GH |
486 | else if (S_ISLNK (mode)) |
487 | ve[13] = scm_sym_symlink; | |
f326ecf3 | 488 | #endif |
ae5253c5 GH |
489 | else if (S_ISBLK (mode)) |
490 | ve[13] = scm_sym_block_special; | |
491 | else if (S_ISCHR (mode)) | |
492 | ve[13] = scm_sym_char_special; | |
493 | else if (S_ISFIFO (mode)) | |
494 | ve[13] = scm_sym_fifo; | |
e655d034 | 495 | #ifdef S_ISSOCK |
ae5253c5 GH |
496 | else if (S_ISSOCK (mode)) |
497 | ve[13] = scm_sym_sock; | |
e655d034 | 498 | #endif |
ae5253c5 GH |
499 | else |
500 | ve[13] = scm_sym_unknown; | |
501 | ||
502 | ve[14] = SCM_MAKINUM ((~S_IFMT) & mode); | |
503 | ||
504 | /* the layout of the bits in ve[14] is intended to be portable. | |
505 | If there are systems that don't follow the usual convention, | |
506 | the following could be used: | |
507 | ||
508 | tmp = 0; | |
509 | if (S_ISUID & mode) tmp += 1; | |
510 | tmp <<= 1; | |
511 | if (S_IRGRP & mode) tmp += 1; | |
512 | tmp <<= 1; | |
513 | if (S_ISVTX & mode) tmp += 1; | |
514 | tmp <<= 1; | |
515 | if (S_IRUSR & mode) tmp += 1; | |
516 | tmp <<= 1; | |
517 | if (S_IWUSR & mode) tmp += 1; | |
518 | tmp <<= 1; | |
519 | if (S_IXUSR & mode) tmp += 1; | |
520 | tmp <<= 1; | |
521 | if (S_IWGRP & mode) tmp += 1; | |
522 | tmp <<= 1; | |
523 | if (S_IXGRP & mode) tmp += 1; | |
524 | tmp <<= 1; | |
525 | if (S_IROTH & mode) tmp += 1; | |
526 | tmp <<= 1; | |
527 | if (S_IWOTH & mode) tmp += 1; | |
528 | tmp <<= 1; | |
529 | if (S_IXOTH & mode) tmp += 1; | |
530 | ||
531 | ve[14] = SCM_MAKINUM (tmp); | |
532 | ||
533 | */ | |
534 | } | |
0f2d19dd JB |
535 | |
536 | return ans; | |
537 | } | |
538 | ||
e0c73a1c MV |
539 | #ifdef __MINGW32__ |
540 | /* | |
541 | * Try getting the appropiate stat buffer for a given file descriptor | |
542 | * under Windows. It differentiates between file, pipe and socket | |
543 | * descriptors. | |
544 | */ | |
545 | static int fstat_Win32 (int fdes, struct stat *buf) | |
546 | { | |
547 | int error, optlen = sizeof (int); | |
548 | ||
549 | memset (buf, 0, sizeof (struct stat)); | |
550 | ||
551 | /* Is this a socket ? */ | |
552 | if (getsockopt (fdes, SOL_SOCKET, SO_ERROR, (void *) &error, &optlen) >= 0) | |
553 | { | |
554 | buf->st_mode = _S_IFSOCK | _S_IREAD | _S_IWRITE | _S_IEXEC; | |
555 | buf->st_nlink = 1; | |
556 | buf->st_atime = buf->st_ctime = buf->st_mtime = time (NULL); | |
557 | return 0; | |
558 | } | |
559 | /* Maybe a regular file or pipe ? */ | |
560 | return fstat (fdes, buf); | |
561 | } | |
562 | #endif /* __MINGW32__ */ | |
563 | ||
a1ec6916 | 564 | SCM_DEFINE (scm_stat, "stat", 1, 0, 0, |
1bbd0b84 | 565 | (SCM object), |
1e6808ea MG |
566 | "Return an object containing various information about the file\n" |
567 | "determined by @var{obj}. @var{obj} can be a string containing\n" | |
568 | "a file name or a port or integer file descriptor which is open\n" | |
569 | "on a file (in which case @code{fstat} is used as the underlying\n" | |
570 | "system call).\n" | |
571 | "\n" | |
572 | "The object returned by @code{stat} can be passed as a single\n" | |
573 | "parameter to the following procedures, all of which return\n" | |
574 | "integers:\n" | |
575 | "\n" | |
d3818c29 MD |
576 | "@table @code\n" |
577 | "@item stat:dev\n" | |
578 | "The device containing the file.\n" | |
579 | "@item stat:ino\n" | |
1e6808ea MG |
580 | "The file serial number, which distinguishes this file from all\n" |
581 | "other files on the same device.\n" | |
d3818c29 | 582 | "@item stat:mode\n" |
1e6808ea MG |
583 | "The mode of the file. This includes file type information and\n" |
584 | "the file permission bits. See @code{stat:type} and\n" | |
585 | "@code{stat:perms} below.\n" | |
d3818c29 MD |
586 | "@item stat:nlink\n" |
587 | "The number of hard links to the file.\n" | |
588 | "@item stat:uid\n" | |
589 | "The user ID of the file's owner.\n" | |
590 | "@item stat:gid\n" | |
591 | "The group ID of the file.\n" | |
592 | "@item stat:rdev\n" | |
593 | "Device ID; this entry is defined only for character or block\n" | |
594 | "special files.\n" | |
595 | "@item stat:size\n" | |
596 | "The size of a regular file in bytes.\n" | |
597 | "@item stat:atime\n" | |
598 | "The last access time for the file.\n" | |
599 | "@item stat:mtime\n" | |
600 | "The last modification time for the file.\n" | |
601 | "@item stat:ctime\n" | |
602 | "The last modification time for the attributes of the file.\n" | |
603 | "@item stat:blksize\n" | |
1e6808ea MG |
604 | "The optimal block size for reading or writing the file, in\n" |
605 | "bytes.\n" | |
d3818c29 | 606 | "@item stat:blocks\n" |
1e6808ea MG |
607 | "The amount of disk space that the file occupies measured in\n" |
608 | "units of 512 byte blocks.\n" | |
609 | "@end table\n" | |
610 | "\n" | |
d3818c29 | 611 | "In addition, the following procedures return the information\n" |
1e6808ea MG |
612 | "from stat:mode in a more convenient form:\n" |
613 | "\n" | |
d3818c29 MD |
614 | "@table @code\n" |
615 | "@item stat:type\n" | |
616 | "A symbol representing the type of file. Possible values are\n" | |
1e6808ea MG |
617 | "regular, directory, symlink, block-special, char-special, fifo,\n" |
618 | "socket and unknown\n" | |
d3818c29 MD |
619 | "@item stat:perms\n" |
620 | "An integer representing the access permission bits.\n" | |
621 | "@end table") | |
1bbd0b84 | 622 | #define FUNC_NAME s_scm_stat |
0f2d19dd | 623 | { |
6afcd3b2 GH |
624 | int rv; |
625 | int fdes; | |
0f2d19dd JB |
626 | struct stat stat_temp; |
627 | ||
1ea47048 | 628 | if (SCM_INUMP (object)) |
36284627 | 629 | { |
e0c73a1c MV |
630 | #ifdef __MINGW32__ |
631 | SCM_SYSCALL (rv = fstat_Win32 (SCM_INUM (object), &stat_temp)); | |
632 | #else | |
36284627 | 633 | SCM_SYSCALL (rv = fstat (SCM_INUM (object), &stat_temp)); |
e0c73a1c | 634 | #endif |
36284627 DH |
635 | } |
636 | else if (SCM_STRINGP (object)) | |
637 | { | |
e0c73a1c MV |
638 | #ifdef __MINGW32__ |
639 | char *p, *file = strdup (SCM_STRING_CHARS (object)); | |
640 | p = file + strlen (file) - 1; | |
641 | while (p > file && (*p == '/' || *p == '\\')) | |
642 | *p-- = '\0'; | |
643 | SCM_SYSCALL (rv = stat (file, &stat_temp)); | |
644 | free (file); | |
645 | #else | |
36284627 | 646 | SCM_SYSCALL (rv = stat (SCM_STRING_CHARS (object), &stat_temp)); |
e0c73a1c | 647 | #endif |
36284627 | 648 | } |
1ea47048 | 649 | else |
0f2d19dd | 650 | { |
36284627 DH |
651 | object = SCM_COERCE_OUTPORT (object); |
652 | SCM_VALIDATE_OPFPORT (1, object); | |
653 | fdes = SCM_FPORT_FDES (object); | |
e0c73a1c MV |
654 | #ifdef __MINGW32__ |
655 | SCM_SYSCALL (rv = fstat_Win32 (fdes, &stat_temp)); | |
656 | #else | |
36284627 | 657 | SCM_SYSCALL (rv = fstat (fdes, &stat_temp)); |
e0c73a1c | 658 | #endif |
6afcd3b2 | 659 | } |
36284627 | 660 | |
6afcd3b2 | 661 | if (rv == -1) |
3d8d56df GH |
662 | { |
663 | int en = errno; | |
664 | ||
5d2d2ffc | 665 | SCM_SYSERROR_MSG ("~A: ~S", |
1afff620 KN |
666 | scm_list_2 (scm_makfrom0str (strerror (errno)), |
667 | object), | |
e0c08f17 | 668 | en); |
3d8d56df | 669 | } |
02b754d3 | 670 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 671 | } |
1bbd0b84 | 672 | #undef FUNC_NAME |
0f2d19dd | 673 | |
0f2d19dd JB |
674 | \f |
675 | /* {Modifying Directories} | |
676 | */ | |
677 | ||
82893676 | 678 | #ifdef HAVE_LINK |
a1ec6916 | 679 | SCM_DEFINE (scm_link, "link", 2, 0, 0, |
1bbd0b84 | 680 | (SCM oldpath, SCM newpath), |
6d36532c GH |
681 | "Creates a new name @var{newpath} in the file system for the\n" |
682 | "file named by @var{oldpath}. If @var{oldpath} is a symbolic\n" | |
683 | "link, the link may or may not be followed depending on the\n" | |
684 | "system.") | |
1bbd0b84 | 685 | #define FUNC_NAME s_scm_link |
0f2d19dd JB |
686 | { |
687 | int val; | |
02b754d3 | 688 | |
a6d9e5ab | 689 | SCM_VALIDATE_STRING (1, oldpath); |
a6d9e5ab | 690 | SCM_VALIDATE_STRING (2, newpath); |
6d36532c GH |
691 | SCM_SYSCALL (val = link (SCM_STRING_CHARS (oldpath), |
692 | SCM_STRING_CHARS (newpath))); | |
02b754d3 | 693 | if (val != 0) |
1bbd0b84 | 694 | SCM_SYSERROR; |
02b754d3 | 695 | return SCM_UNSPECIFIED; |
0f2d19dd | 696 | } |
1bbd0b84 | 697 | #undef FUNC_NAME |
82893676 | 698 | #endif /* HAVE_LINK */ |
0f2d19dd JB |
699 | |
700 | ||
701 | ||
a1ec6916 | 702 | SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, |
1bbd0b84 | 703 | (SCM oldname, SCM newname), |
6d36532c | 704 | "Renames the file specified by @var{oldname} to @var{newname}.\n" |
d3818c29 | 705 | "The return value is unspecified.") |
1bbd0b84 | 706 | #define FUNC_NAME s_scm_rename |
0f2d19dd JB |
707 | { |
708 | int rv; | |
a6d9e5ab DH |
709 | SCM_VALIDATE_STRING (1, oldname); |
710 | SCM_VALIDATE_STRING (2, newname); | |
0f2d19dd | 711 | #ifdef HAVE_RENAME |
a6d9e5ab | 712 | SCM_SYSCALL (rv = rename (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname))); |
0f2d19dd | 713 | #else |
a6d9e5ab | 714 | SCM_SYSCALL (rv = link (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname))); |
02b754d3 | 715 | if (rv == 0) |
0f2d19dd | 716 | { |
a6d9e5ab | 717 | SCM_SYSCALL (rv = unlink (SCM_STRING_CHARS (oldname)));; |
02b754d3 | 718 | if (rv != 0) |
0f2d19dd | 719 | /* unlink failed. remove new name */ |
a6d9e5ab | 720 | SCM_SYSCALL (unlink (SCM_STRING_CHARS (newname))); |
0f2d19dd | 721 | } |
6afcd3b2 | 722 | #endif |
02b754d3 | 723 | if (rv != 0) |
1bbd0b84 | 724 | SCM_SYSERROR; |
02b754d3 | 725 | return SCM_UNSPECIFIED; |
0f2d19dd | 726 | } |
1bbd0b84 | 727 | #undef FUNC_NAME |
0f2d19dd JB |
728 | |
729 | ||
3b3b36dd | 730 | SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, |
1bbd0b84 | 731 | (SCM str), |
d3818c29 | 732 | "Deletes (or \"unlinks\") the file specified by @var{path}.") |
1bbd0b84 | 733 | #define FUNC_NAME s_scm_delete_file |
2f3ed1ba JB |
734 | { |
735 | int ans; | |
a6d9e5ab | 736 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 737 | SCM_SYSCALL (ans = unlink (SCM_STRING_CHARS (str))); |
2f3ed1ba | 738 | if (ans != 0) |
1bbd0b84 | 739 | SCM_SYSERROR; |
2f3ed1ba JB |
740 | return SCM_UNSPECIFIED; |
741 | } | |
1bbd0b84 | 742 | #undef FUNC_NAME |
2f3ed1ba | 743 | |
f25f761d | 744 | #ifdef HAVE_MKDIR |
a1ec6916 | 745 | SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0, |
1bbd0b84 | 746 | (SCM path, SCM mode), |
d3818c29 MD |
747 | "Create a new directory named by @var{path}. If @var{mode} is omitted\n" |
748 | "then the permissions of the directory file are set using the current\n" | |
749 | "umask. Otherwise they are set to the decimal value specified with\n" | |
750 | "@var{mode}. The return value is unspecified.") | |
1bbd0b84 | 751 | #define FUNC_NAME s_scm_mkdir |
0f2d19dd | 752 | { |
0f2d19dd JB |
753 | int rv; |
754 | mode_t mask; | |
a6d9e5ab | 755 | SCM_VALIDATE_STRING (1, path); |
0f2d19dd JB |
756 | if (SCM_UNBNDP (mode)) |
757 | { | |
758 | mask = umask (0); | |
759 | umask (mask); | |
a6d9e5ab | 760 | SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), 0777 ^ mask)); |
0f2d19dd JB |
761 | } |
762 | else | |
763 | { | |
3b3b36dd | 764 | SCM_VALIDATE_INUM (2,mode); |
a6d9e5ab | 765 | SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), SCM_INUM (mode))); |
0f2d19dd | 766 | } |
02b754d3 | 767 | if (rv != 0) |
1bbd0b84 | 768 | SCM_SYSERROR; |
02b754d3 | 769 | return SCM_UNSPECIFIED; |
0f2d19dd | 770 | } |
1bbd0b84 | 771 | #undef FUNC_NAME |
f25f761d | 772 | #endif /* HAVE_MKDIR */ |
0f2d19dd | 773 | |
f25f761d | 774 | #ifdef HAVE_RMDIR |
a1ec6916 | 775 | SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0, |
1bbd0b84 | 776 | (SCM path), |
d3818c29 MD |
777 | "Remove the existing directory named by @var{path}. The directory must\n" |
778 | "be empty for this to succeed. The return value is unspecified.") | |
1bbd0b84 | 779 | #define FUNC_NAME s_scm_rmdir |
0f2d19dd | 780 | { |
0f2d19dd | 781 | int val; |
02b754d3 | 782 | |
a6d9e5ab | 783 | SCM_VALIDATE_STRING (1, path); |
a6d9e5ab | 784 | SCM_SYSCALL (val = rmdir (SCM_STRING_CHARS (path))); |
02b754d3 | 785 | if (val != 0) |
1bbd0b84 | 786 | SCM_SYSERROR; |
02b754d3 | 787 | return SCM_UNSPECIFIED; |
0f2d19dd | 788 | } |
1bbd0b84 | 789 | #undef FUNC_NAME |
f25f761d | 790 | #endif |
0f2d19dd JB |
791 | |
792 | \f | |
30ea841d | 793 | |
0f2d19dd JB |
794 | /* {Examining Directories} |
795 | */ | |
796 | ||
92c2555f | 797 | scm_t_bits scm_tc16_dir; |
0f2d19dd | 798 | |
30ea841d | 799 | |
a1ec6916 | 800 | SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0, |
1bbd0b84 | 801 | (SCM obj), |
1e6808ea MG |
802 | "Return a boolean indicating whether @var{object} is a directory\n" |
803 | "stream as returned by @code{opendir}.") | |
1bbd0b84 | 804 | #define FUNC_NAME s_scm_directory_stream_p |
77242ff9 | 805 | { |
30ea841d | 806 | return SCM_BOOL (SCM_DIRP (obj)); |
77242ff9 | 807 | } |
1bbd0b84 | 808 | #undef FUNC_NAME |
77242ff9 | 809 | |
30ea841d | 810 | |
a1ec6916 | 811 | SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0, |
1bbd0b84 | 812 | (SCM dirname), |
d3818c29 MD |
813 | "Open the directory specified by @var{path} and return a directory\n" |
814 | "stream.") | |
1bbd0b84 | 815 | #define FUNC_NAME s_scm_opendir |
0f2d19dd JB |
816 | { |
817 | DIR *ds; | |
a6d9e5ab | 818 | SCM_VALIDATE_STRING (1, dirname); |
a6d9e5ab | 819 | SCM_SYSCALL (ds = opendir (SCM_STRING_CHARS (dirname))); |
02b754d3 | 820 | if (ds == NULL) |
1bbd0b84 | 821 | SCM_SYSERROR; |
30ea841d | 822 | SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_DIR_FLAG_OPEN, ds); |
0f2d19dd | 823 | } |
1bbd0b84 | 824 | #undef FUNC_NAME |
0f2d19dd JB |
825 | |
826 | ||
a1ec6916 | 827 | SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0, |
1bbd0b84 | 828 | (SCM port), |
d3818c29 MD |
829 | "Return (as a string) the next directory entry from the directory stream\n" |
830 | "@var{stream}. If there is no remaining entry to be read then the\n" | |
831 | "end of file object is returned.") | |
1bbd0b84 | 832 | #define FUNC_NAME s_scm_readdir |
0f2d19dd JB |
833 | { |
834 | struct dirent *rdent; | |
30ea841d DH |
835 | |
836 | SCM_VALIDATE_DIR (1, port); | |
837 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 838 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 839 | |
0f2d19dd | 840 | errno = 0; |
4260a7fc | 841 | SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CELL_WORD_1 (port))); |
02b754d3 | 842 | if (errno != 0) |
1bbd0b84 | 843 | SCM_SYSERROR; |
30ea841d | 844 | |
36284627 | 845 | return (rdent ? scm_mem2string (rdent->d_name, NAMLEN (rdent)) |
02b754d3 | 846 | : SCM_EOF_VAL); |
0f2d19dd | 847 | } |
1bbd0b84 | 848 | #undef FUNC_NAME |
0f2d19dd JB |
849 | |
850 | ||
a1ec6916 | 851 | SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0, |
1bbd0b84 | 852 | (SCM port), |
d3818c29 MD |
853 | "Reset the directory port @var{stream} so that the next call to\n" |
854 | "@code{readdir} will return the first directory entry.") | |
1bbd0b84 | 855 | #define FUNC_NAME s_scm_rewinddir |
0f2d19dd | 856 | { |
30ea841d DH |
857 | SCM_VALIDATE_DIR (1, port); |
858 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 859 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 860 | |
4260a7fc | 861 | rewinddir ((DIR *) SCM_CELL_WORD_1 (port)); |
30ea841d | 862 | |
0f2d19dd JB |
863 | return SCM_UNSPECIFIED; |
864 | } | |
1bbd0b84 | 865 | #undef FUNC_NAME |
0f2d19dd JB |
866 | |
867 | ||
a1ec6916 | 868 | SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0, |
1bbd0b84 | 869 | (SCM port), |
d3818c29 MD |
870 | "Close the directory stream @var{stream}.\n" |
871 | "The return value is unspecified.") | |
1bbd0b84 | 872 | #define FUNC_NAME s_scm_closedir |
0f2d19dd | 873 | { |
30ea841d | 874 | SCM_VALIDATE_DIR (1, port); |
02b754d3 | 875 | |
30ea841d | 876 | if (SCM_DIR_OPEN_P (port)) |
0f2d19dd | 877 | { |
30ea841d DH |
878 | int sts; |
879 | ||
880 | SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port))); | |
881 | if (sts != 0) | |
882 | SCM_SYSERROR; | |
883 | ||
884 | SCM_SET_CELL_WORD_0 (port, scm_tc16_dir); | |
0f2d19dd | 885 | } |
30ea841d | 886 | |
02b754d3 | 887 | return SCM_UNSPECIFIED; |
0f2d19dd | 888 | } |
1bbd0b84 | 889 | #undef FUNC_NAME |
0f2d19dd JB |
890 | |
891 | ||
0f2d19dd | 892 | static int |
e81d98ec | 893 | scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
0f2d19dd | 894 | { |
f8b16091 | 895 | scm_puts ("#<", port); |
30ea841d | 896 | if (!SCM_DIR_OPEN_P (exp)) |
f8b16091 | 897 | scm_puts ("closed: ", port); |
0d03da62 | 898 | scm_puts ("directory stream ", port); |
4260a7fc | 899 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); |
f8b16091 | 900 | scm_putc ('>', port); |
0f2d19dd JB |
901 | return 1; |
902 | } | |
903 | ||
1cc91f1b | 904 | |
1be6b49c | 905 | static size_t |
1bbd0b84 | 906 | scm_dir_free (SCM p) |
0f2d19dd | 907 | { |
30ea841d | 908 | if (SCM_DIR_OPEN_P (p)) |
4260a7fc | 909 | closedir ((DIR *) SCM_CELL_WORD_1 (p)); |
0f2d19dd JB |
910 | return 0; |
911 | } | |
912 | ||
0f2d19dd JB |
913 | \f |
914 | /* {Navigating Directories} | |
915 | */ | |
916 | ||
917 | ||
a1ec6916 | 918 | SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0, |
1bbd0b84 | 919 | (SCM str), |
d3818c29 MD |
920 | "Change the current working directory to @var{path}.\n" |
921 | "The return value is unspecified.") | |
1bbd0b84 | 922 | #define FUNC_NAME s_scm_chdir |
0f2d19dd JB |
923 | { |
924 | int ans; | |
02b754d3 | 925 | |
a6d9e5ab | 926 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 927 | SCM_SYSCALL (ans = chdir (SCM_STRING_CHARS (str))); |
02b754d3 | 928 | if (ans != 0) |
1bbd0b84 | 929 | SCM_SYSERROR; |
02b754d3 | 930 | return SCM_UNSPECIFIED; |
0f2d19dd | 931 | } |
1bbd0b84 | 932 | #undef FUNC_NAME |
0f2d19dd | 933 | |
f25f761d | 934 | #ifdef HAVE_GETCWD |
a1ec6916 | 935 | SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0, |
1bbd0b84 | 936 | (), |
1e6808ea | 937 | "Return the name of the current working directory.") |
1bbd0b84 | 938 | #define FUNC_NAME s_scm_getcwd |
0f2d19dd | 939 | { |
0f2d19dd | 940 | char *rv; |
1be6b49c | 941 | size_t size = 100; |
0f2d19dd JB |
942 | char *wd; |
943 | SCM result; | |
944 | ||
4c9419ac | 945 | wd = scm_malloc (size); |
0f2d19dd JB |
946 | while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE) |
947 | { | |
4c9419ac | 948 | free (wd); |
0f2d19dd | 949 | size *= 2; |
4c9419ac | 950 | wd = scm_malloc (size); |
0f2d19dd | 951 | } |
02b754d3 | 952 | if (rv == 0) |
1bbd0b84 | 953 | SCM_SYSERROR; |
36284627 | 954 | result = scm_mem2string (wd, strlen (wd)); |
4c9419ac | 955 | free (wd); |
0f2d19dd | 956 | return result; |
0f2d19dd | 957 | } |
1bbd0b84 | 958 | #undef FUNC_NAME |
f25f761d | 959 | #endif /* HAVE_GETCWD */ |
0f2d19dd JB |
960 | |
961 | \f | |
962 | ||
28d77376 GH |
963 | #ifdef HAVE_SELECT |
964 | ||
965 | /* check that element is a port or file descriptor. if it's a port | |
966 | and its buffer is ready for use, add it to the ports_ready list. | |
967 | otherwise add its file descriptor to *set. the type of list can be | |
968 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
969 | SCM_ARG3 for excepts. */ | |
cafc12ff | 970 | static int |
28d77376 | 971 | set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos) |
a48a89bc | 972 | { |
cafc12ff | 973 | int fd; |
d831b039 | 974 | |
28d77376 GH |
975 | if (SCM_INUMP (element)) |
976 | { | |
977 | fd = SCM_INUM (element); | |
978 | } | |
979 | else | |
980 | { | |
981 | int use_buf = 0; | |
982 | ||
983 | element = SCM_COERCE_OUTPORT (element); | |
984 | SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select"); | |
985 | if (pos == SCM_ARG1) | |
986 | { | |
987 | /* check whether port has buffered input. */ | |
92c2555f | 988 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
989 | |
990 | if (pt->read_pos < pt->read_end) | |
991 | use_buf = 1; | |
992 | } | |
993 | else if (pos == SCM_ARG2) | |
994 | { | |
995 | /* check whether port's output buffer has room. */ | |
92c2555f | 996 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
997 | |
998 | /* > 1 since writing the last byte in the buffer causes flush. */ | |
999 | if (pt->write_end - pt->write_pos > 1) | |
1000 | use_buf = 1; | |
1001 | } | |
1002 | fd = use_buf ? -1 : SCM_FPORT_FDES (element); | |
1003 | } | |
1004 | if (fd == -1) | |
1005 | *ports_ready = scm_cons (element, *ports_ready); | |
1006 | else | |
1007 | FD_SET (fd, set); | |
cafc12ff | 1008 | return fd; |
a48a89bc | 1009 | } |
1cc91f1b | 1010 | |
28d77376 GH |
1011 | /* check list_or_vec, a list or vector of ports or file descriptors, |
1012 | adding each member to either the ports_ready list (if it's a port | |
1013 | with a usable buffer) or to *set. the kind of list_or_vec can be | |
1014 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
1015 | SCM_ARG3 for excepts. */ | |
cafc12ff | 1016 | static int |
28d77376 | 1017 | fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos) |
0f2d19dd | 1018 | { |
28d77376 GH |
1019 | int max_fd = 0; |
1020 | ||
1021 | if (SCM_VECTORP (list_or_vec)) | |
0f2d19dd | 1022 | { |
9fd38a3d | 1023 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
28d77376 | 1024 | SCM *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1025 | |
28d77376 | 1026 | while (--i >= 0) |
a48a89bc | 1027 | { |
28d77376 GH |
1028 | int fd = set_element (set, ports_ready, ve[i], pos); |
1029 | ||
cafc12ff MD |
1030 | if (fd > max_fd) |
1031 | max_fd = fd; | |
a48a89bc GH |
1032 | } |
1033 | } | |
1034 | else | |
1035 | { | |
c96d76b8 | 1036 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
a48a89bc | 1037 | { |
28d77376 GH |
1038 | int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos); |
1039 | ||
cafc12ff MD |
1040 | if (fd > max_fd) |
1041 | max_fd = fd; | |
28d77376 | 1042 | list_or_vec = SCM_CDR (list_or_vec); |
a48a89bc | 1043 | } |
0f2d19dd | 1044 | } |
cafc12ff MD |
1045 | |
1046 | return max_fd; | |
0f2d19dd JB |
1047 | } |
1048 | ||
28d77376 GH |
1049 | /* if element (a file descriptor or port) appears in *set, cons it to |
1050 | list. return list. */ | |
a48a89bc GH |
1051 | static SCM |
1052 | get_element (SELECT_TYPE *set, SCM element, SCM list) | |
1053 | { | |
28d77376 GH |
1054 | int fd; |
1055 | ||
1056 | if (SCM_INUMP (element)) | |
a48a89bc | 1057 | { |
28d77376 | 1058 | fd = SCM_INUM (element); |
a48a89bc | 1059 | } |
28d77376 | 1060 | else |
a48a89bc | 1061 | { |
28d77376 | 1062 | fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element)); |
a48a89bc | 1063 | } |
28d77376 GH |
1064 | if (FD_ISSET (fd, set)) |
1065 | list = scm_cons (element, list); | |
a48a89bc GH |
1066 | return list; |
1067 | } | |
1cc91f1b | 1068 | |
28d77376 GH |
1069 | /* construct component of scm_select return value. |
1070 | set: pointer to set of file descriptors found by select to be ready | |
1071 | ports_ready: ports ready due to buffering | |
1072 | list_or_vec: original list/vector handed to scm_select. | |
1073 | the return value is a list/vector of ready ports/file descriptors. | |
1074 | works by finding the objects in list which correspond to members of | |
1075 | *set and appending them to ports_ready. result is converted to a | |
1076 | vector if list_or_vec is a vector. */ | |
0f2d19dd | 1077 | static SCM |
28d77376 | 1078 | retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec) |
0f2d19dd | 1079 | { |
28d77376 | 1080 | SCM answer_list = ports_ready; |
a48a89bc | 1081 | |
28d77376 | 1082 | if (SCM_VECTORP (list_or_vec)) |
0f2d19dd | 1083 | { |
9fd38a3d | 1084 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
28d77376 | 1085 | SCM *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1086 | |
28d77376 | 1087 | while (--i >= 0) |
0f2d19dd | 1088 | { |
28d77376 | 1089 | answer_list = get_element (set, ve[i], answer_list); |
0f2d19dd | 1090 | } |
a48a89bc GH |
1091 | return scm_vector (answer_list); |
1092 | } | |
1093 | else | |
1094 | { | |
28d77376 | 1095 | /* list_or_vec must be a list. */ |
c96d76b8 | 1096 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
0f2d19dd | 1097 | { |
28d77376 GH |
1098 | answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list); |
1099 | list_or_vec = SCM_CDR (list_or_vec); | |
0f2d19dd | 1100 | } |
a48a89bc | 1101 | return answer_list; |
0f2d19dd | 1102 | } |
0f2d19dd JB |
1103 | } |
1104 | ||
1bbd0b84 | 1105 | /* Static helper functions above refer to s_scm_select directly as s_select */ |
a1ec6916 | 1106 | SCM_DEFINE (scm_select, "select", 3, 2, 0, |
1bbd0b84 | 1107 | (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs), |
28d77376 GH |
1108 | "This procedure has a variety of uses: waiting for the ability\n" |
1109 | "to provide input, accept output, or the existance of\n" | |
1110 | "exceptional conditions on a collection of ports or file\n" | |
1111 | "descriptors, or waiting for a timeout to occur.\n" | |
1112 | "It also returns if interrupted by a signal.\n\n" | |
1113 | "@var{reads}, @var{writes} and @var{excepts} can be lists or\n" | |
1114 | "vectors, with each member a port or a file descriptor.\n" | |
1115 | "The value returned is a list of three corresponding\n" | |
1116 | "lists or vectors containing only the members which meet the\n" | |
1117 | "specified requirement. The ability of port buffers to\n" | |
1118 | "provide input or accept output is taken into account.\n" | |
1119 | "Ordering of the input lists or vectors is not preserved.\n\n" | |
1120 | "The optional arguments @var{secs} and @var{usecs} specify the\n" | |
1121 | "timeout. Either @var{secs} can be specified alone, as\n" | |
1122 | "either an integer or a real number, or both @var{secs} and\n" | |
1123 | "@var{usecs} can be specified as integers, in which case\n" | |
1124 | "@var{usecs} is an additional timeout expressed in\n" | |
1125 | "microseconds. If @var{secs} is omitted or is @code{#f} then\n" | |
1126 | "select will wait for as long as it takes for one of the other\n" | |
1127 | "conditions to be satisfied.\n\n" | |
1128 | "The scsh version of @code{select} differs as follows:\n" | |
1129 | "Only vectors are accepted for the first three arguments.\n" | |
1130 | "The @var{usecs} argument is not supported.\n" | |
1131 | "Multiple values are returned instead of a list.\n" | |
1132 | "Duplicates in the input vectors appear only once in output.\n" | |
9401323e | 1133 | "An additional @code{select!} interface is provided.") |
1bbd0b84 | 1134 | #define FUNC_NAME s_scm_select |
0f2d19dd | 1135 | { |
0f2d19dd | 1136 | struct timeval timeout; |
28d77376 | 1137 | struct timeval * time_ptr; |
0f2d19dd JB |
1138 | SELECT_TYPE read_set; |
1139 | SELECT_TYPE write_set; | |
1140 | SELECT_TYPE except_set; | |
28d77376 GH |
1141 | int read_count; |
1142 | int write_count; | |
1143 | int except_count; | |
1144 | /* these lists accumulate ports which are ready due to buffering. | |
1145 | their file descriptors don't need to be added to the select sets. */ | |
1146 | SCM read_ports_ready = SCM_EOL; | |
1147 | SCM write_ports_ready = SCM_EOL; | |
1148 | int max_fd; | |
1149 | ||
1150 | if (SCM_VECTORP (reads)) | |
1151 | { | |
9fd38a3d | 1152 | read_count = SCM_VECTOR_LENGTH (reads); |
28d77376 GH |
1153 | } |
1154 | else | |
1155 | { | |
1156 | read_count = scm_ilength (reads); | |
1157 | SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME); | |
1158 | } | |
1159 | if (SCM_VECTORP (writes)) | |
1160 | { | |
9fd38a3d | 1161 | write_count = SCM_VECTOR_LENGTH (writes); |
28d77376 GH |
1162 | } |
1163 | else | |
1164 | { | |
1165 | write_count = scm_ilength (writes); | |
1166 | SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME); | |
1167 | } | |
1168 | if (SCM_VECTORP (excepts)) | |
1169 | { | |
9fd38a3d | 1170 | except_count = SCM_VECTOR_LENGTH (excepts); |
28d77376 GH |
1171 | } |
1172 | else | |
1173 | { | |
1174 | except_count = scm_ilength (excepts); | |
1175 | SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME); | |
1176 | } | |
0f2d19dd JB |
1177 | |
1178 | FD_ZERO (&read_set); | |
1179 | FD_ZERO (&write_set); | |
1180 | FD_ZERO (&except_set); | |
1181 | ||
28d77376 GH |
1182 | max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1); |
1183 | ||
1184 | { | |
1185 | int write_max = fill_select_type (&write_set, &write_ports_ready, | |
1186 | writes, SCM_ARG2); | |
1187 | int except_max = fill_select_type (&except_set, NULL, | |
1188 | excepts, SCM_ARG3); | |
1189 | ||
1190 | if (write_max > max_fd) | |
1191 | max_fd = write_max; | |
1192 | if (except_max > max_fd) | |
1193 | max_fd = except_max; | |
1194 | } | |
0f2d19dd | 1195 | |
ae1b098b GH |
1196 | /* if there's a port with a ready buffer, don't block, just |
1197 | check for ready file descriptors. */ | |
4260a7fc | 1198 | if (!SCM_NULLP (read_ports_ready) || !SCM_NULLP (write_ports_ready)) |
ae1b098b GH |
1199 | { |
1200 | timeout.tv_sec = 0; | |
1201 | timeout.tv_usec = 0; | |
1202 | time_ptr = &timeout; | |
1203 | } | |
1204 | else if (SCM_UNBNDP (secs) || SCM_FALSEP (secs)) | |
28d77376 | 1205 | time_ptr = 0; |
0f2d19dd JB |
1206 | else |
1207 | { | |
ae1b098b | 1208 | if (SCM_INUMP (secs)) |
a48a89bc GH |
1209 | { |
1210 | timeout.tv_sec = SCM_INUM (secs); | |
1211 | if (SCM_UNBNDP (usecs)) | |
1212 | timeout.tv_usec = 0; | |
1213 | else | |
1214 | { | |
3b3b36dd | 1215 | SCM_VALIDATE_INUM (5,usecs); |
a48a89bc GH |
1216 | timeout.tv_usec = SCM_INUM (usecs); |
1217 | } | |
1218 | } | |
0f2d19dd | 1219 | else |
a48a89bc | 1220 | { |
1bbd0b84 | 1221 | double fl = scm_num2dbl (secs, FUNC_NAME); |
a48a89bc GH |
1222 | |
1223 | if (!SCM_UNBNDP (usecs)) | |
c1bfcf60 | 1224 | SCM_WRONG_TYPE_ARG (4, secs); |
a48a89bc | 1225 | if (fl > LONG_MAX) |
c1bfcf60 | 1226 | SCM_OUT_OF_RANGE (4, secs); |
a48a89bc GH |
1227 | timeout.tv_sec = (long) fl; |
1228 | timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000); | |
1229 | } | |
28d77376 | 1230 | time_ptr = &timeout; |
0f2d19dd JB |
1231 | } |
1232 | ||
28d77376 | 1233 | { |
44e8413c | 1234 | #ifdef GUILE_ISELECT |
28d77376 GH |
1235 | int rv = scm_internal_select (max_fd + 1, |
1236 | &read_set, &write_set, &except_set, | |
1237 | time_ptr); | |
44e8413c | 1238 | #else |
28d77376 GH |
1239 | int rv = select (max_fd + 1, |
1240 | &read_set, &write_set, &except_set, time_ptr); | |
44e8413c | 1241 | #endif |
28d77376 GH |
1242 | if (rv < 0) |
1243 | SCM_SYSERROR; | |
1244 | } | |
1afff620 KN |
1245 | return scm_list_3 (retrieve_select_type (&read_set, read_ports_ready, reads), |
1246 | retrieve_select_type (&write_set, write_ports_ready, writes), | |
1247 | retrieve_select_type (&except_set, SCM_EOL, excepts)); | |
0f2d19dd | 1248 | } |
1bbd0b84 | 1249 | #undef FUNC_NAME |
f25f761d | 1250 | #endif /* HAVE_SELECT */ |
0f2d19dd JB |
1251 | |
1252 | \f | |
4c1feaa5 | 1253 | |
82893676 | 1254 | #ifdef HAVE_FCNTL |
af45e3b0 | 1255 | SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0, |
1bbd0b84 | 1256 | (SCM object, SCM cmd, SCM value), |
d3818c29 MD |
1257 | "Apply @var{command} to the specified file descriptor or the underlying\n" |
1258 | "file descriptor of the specified port. @var{value} is an optional\n" | |
1259 | "integer argument.\n\n" | |
1260 | "Values for @var{command} are:\n\n" | |
1261 | "@table @code\n" | |
1262 | "@item F_DUPFD\n" | |
1263 | "Duplicate a file descriptor\n" | |
1264 | "@item F_GETFD\n" | |
1265 | "Get flags associated with the file descriptor.\n" | |
1266 | "@item F_SETFD\n" | |
1267 | "Set flags associated with the file descriptor to @var{value}.\n" | |
1268 | "@item F_GETFL\n" | |
1269 | "Get flags associated with the open file.\n" | |
1270 | "@item F_SETFL\n" | |
1271 | "Set flags associated with the open file to @var{value}\n" | |
1272 | "@item F_GETOWN\n" | |
1273 | "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n" | |
1274 | "@item F_SETOWN\n" | |
1275 | "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n" | |
1276 | "@item FD_CLOEXEC\n" | |
55892d87 NJ |
1277 | "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n" |
1278 | "@code{F_SETFL}.\n" | |
a3c8b9fc | 1279 | "@end table") |
1bbd0b84 | 1280 | #define FUNC_NAME s_scm_fcntl |
4c1feaa5 JB |
1281 | { |
1282 | int rv; | |
6afcd3b2 GH |
1283 | int fdes; |
1284 | int ivalue; | |
4c1feaa5 | 1285 | |
78446828 MV |
1286 | object = SCM_COERCE_OUTPORT (object); |
1287 | ||
3b3b36dd | 1288 | SCM_VALIDATE_INUM (2,cmd); |
0c95b57d | 1289 | if (SCM_OPFPORTP (object)) |
77a76b64 | 1290 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1291 | else |
1292 | { | |
3b3b36dd | 1293 | SCM_VALIDATE_INUM (1,object); |
6afcd3b2 GH |
1294 | fdes = SCM_INUM (object); |
1295 | } | |
af45e3b0 DH |
1296 | |
1297 | if (SCM_UNBNDP (value)) { | |
6afcd3b2 | 1298 | ivalue = 0; |
af45e3b0 DH |
1299 | } else { |
1300 | SCM_VALIDATE_INUM_COPY (SCM_ARG3, value, ivalue); | |
1301 | } | |
1302 | ||
77a76b64 JB |
1303 | SCM_SYSCALL (rv = fcntl (fdes, SCM_INUM (cmd), ivalue)); |
1304 | if (rv == -1) | |
1bbd0b84 | 1305 | SCM_SYSERROR; |
4c1feaa5 JB |
1306 | return SCM_MAKINUM (rv); |
1307 | } | |
1bbd0b84 | 1308 | #undef FUNC_NAME |
82893676 | 1309 | #endif /* HAVE_FCNTL */ |
6afcd3b2 | 1310 | |
a1ec6916 | 1311 | SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0, |
1bbd0b84 | 1312 | (SCM object), |
d3818c29 MD |
1313 | "Copies any unwritten data for the specified output file descriptor to disk.\n" |
1314 | "If @var{port/fd} is a port, its buffer is flushed before the underlying\n" | |
1315 | "file descriptor is fsync'd.\n" | |
1316 | "The return value is unspecified.") | |
1bbd0b84 | 1317 | #define FUNC_NAME s_scm_fsync |
6afcd3b2 GH |
1318 | { |
1319 | int fdes; | |
1320 | ||
78446828 MV |
1321 | object = SCM_COERCE_OUTPORT (object); |
1322 | ||
0c95b57d | 1323 | if (SCM_OPFPORTP (object)) |
6afcd3b2 | 1324 | { |
affc96b5 | 1325 | scm_flush (object); |
77a76b64 | 1326 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1327 | } |
1328 | else | |
1329 | { | |
3b3b36dd | 1330 | SCM_VALIDATE_INUM (1,object); |
6afcd3b2 GH |
1331 | fdes = SCM_INUM (object); |
1332 | } | |
1333 | if (fsync (fdes) == -1) | |
1bbd0b84 | 1334 | SCM_SYSERROR; |
6afcd3b2 GH |
1335 | return SCM_UNSPECIFIED; |
1336 | } | |
1bbd0b84 | 1337 | #undef FUNC_NAME |
0f2d19dd | 1338 | |
f25f761d | 1339 | #ifdef HAVE_SYMLINK |
a1ec6916 | 1340 | SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0, |
1bbd0b84 | 1341 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
1342 | "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n" |
1343 | "@var{path-from}. The return value is unspecified.") | |
1bbd0b84 | 1344 | #define FUNC_NAME s_scm_symlink |
0f2d19dd | 1345 | { |
0f2d19dd | 1346 | int val; |
02b754d3 | 1347 | |
a6d9e5ab DH |
1348 | SCM_VALIDATE_STRING (1, oldpath); |
1349 | SCM_VALIDATE_STRING (2, newpath); | |
a6d9e5ab | 1350 | SCM_SYSCALL (val = symlink (SCM_STRING_CHARS (oldpath), SCM_STRING_CHARS (newpath))); |
02b754d3 | 1351 | if (val != 0) |
1bbd0b84 | 1352 | SCM_SYSERROR; |
02b754d3 | 1353 | return SCM_UNSPECIFIED; |
0f2d19dd | 1354 | } |
1bbd0b84 | 1355 | #undef FUNC_NAME |
f25f761d | 1356 | #endif /* HAVE_SYMLINK */ |
0f2d19dd | 1357 | |
f25f761d | 1358 | #ifdef HAVE_READLINK |
a1ec6916 | 1359 | SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0, |
1bbd0b84 | 1360 | (SCM path), |
1e6808ea MG |
1361 | "Return the value of the symbolic link named by @var{path} (a\n" |
1362 | "string), i.e., the file that the link points to.") | |
1bbd0b84 | 1363 | #define FUNC_NAME s_scm_readlink |
0f2d19dd | 1364 | { |
6a738a25 JB |
1365 | int rv; |
1366 | int size = 100; | |
0f2d19dd JB |
1367 | char *buf; |
1368 | SCM result; | |
a6d9e5ab | 1369 | SCM_VALIDATE_STRING (1, path); |
4c9419ac | 1370 | buf = scm_malloc (size); |
a6d9e5ab | 1371 | while ((rv = readlink (SCM_STRING_CHARS (path), buf, size)) == size) |
0f2d19dd | 1372 | { |
4c9419ac | 1373 | free (buf); |
0f2d19dd | 1374 | size *= 2; |
4c9419ac | 1375 | buf = scm_malloc (size); |
0f2d19dd | 1376 | } |
02b754d3 | 1377 | if (rv == -1) |
1bbd0b84 | 1378 | SCM_SYSERROR; |
36284627 | 1379 | result = scm_mem2string (buf, rv); |
4c9419ac | 1380 | free (buf); |
0f2d19dd | 1381 | return result; |
0f2d19dd | 1382 | } |
1bbd0b84 | 1383 | #undef FUNC_NAME |
f25f761d | 1384 | #endif /* HAVE_READLINK */ |
0f2d19dd | 1385 | |
f25f761d | 1386 | #ifdef HAVE_LSTAT |
a1ec6916 | 1387 | SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0, |
1bbd0b84 | 1388 | (SCM str), |
d3818c29 | 1389 | "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n" |
9401323e | 1390 | "it will return information about a symbolic link itself, not the\n" |
d3818c29 | 1391 | "file it points to. @var{path} must be a string.") |
1bbd0b84 | 1392 | #define FUNC_NAME s_scm_lstat |
0f2d19dd | 1393 | { |
02b754d3 | 1394 | int rv; |
0f2d19dd | 1395 | struct stat stat_temp; |
02b754d3 | 1396 | |
a6d9e5ab | 1397 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 1398 | SCM_SYSCALL (rv = lstat (SCM_STRING_CHARS (str), &stat_temp)); |
02b754d3 | 1399 | if (rv != 0) |
3d8d56df GH |
1400 | { |
1401 | int en = errno; | |
1402 | ||
5d2d2ffc | 1403 | SCM_SYSERROR_MSG ("~A: ~S", |
1afff620 | 1404 | scm_list_2 (scm_makfrom0str (strerror (errno)), str), |
e0c08f17 | 1405 | en); |
3d8d56df | 1406 | } |
02b754d3 | 1407 | return scm_stat2scm(&stat_temp); |
0f2d19dd | 1408 | } |
1bbd0b84 | 1409 | #undef FUNC_NAME |
f25f761d | 1410 | #endif /* HAVE_LSTAT */ |
0f2d19dd | 1411 | |
a1ec6916 | 1412 | SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0, |
1bbd0b84 | 1413 | (SCM oldfile, SCM newfile), |
d3818c29 MD |
1414 | "Copy the file specified by @var{path-from} to @var{path-to}.\n" |
1415 | "The return value is unspecified.") | |
1bbd0b84 | 1416 | #define FUNC_NAME s_scm_copy_file |
0f2d19dd JB |
1417 | { |
1418 | int oldfd, newfd; | |
1419 | int n; | |
77a76b64 | 1420 | char buf[BUFSIZ]; |
0f2d19dd JB |
1421 | struct stat oldstat; |
1422 | ||
a6d9e5ab | 1423 | SCM_VALIDATE_STRING (1, oldfile); |
a6d9e5ab | 1424 | SCM_VALIDATE_STRING (2, newfile); |
a6d9e5ab | 1425 | if (stat (SCM_STRING_CHARS (oldfile), &oldstat) == -1) |
1bbd0b84 | 1426 | SCM_SYSERROR; |
a6d9e5ab | 1427 | oldfd = open (SCM_STRING_CHARS (oldfile), O_RDONLY); |
0f2d19dd | 1428 | if (oldfd == -1) |
1bbd0b84 | 1429 | SCM_SYSERROR; |
02b754d3 GH |
1430 | |
1431 | /* use POSIX flags instead of 07777?. */ | |
a6d9e5ab | 1432 | newfd = open (SCM_STRING_CHARS (newfile), O_WRONLY | O_CREAT | O_TRUNC, |
0f2d19dd JB |
1433 | oldstat.st_mode & 07777); |
1434 | if (newfd == -1) | |
1bbd0b84 | 1435 | SCM_SYSERROR; |
02b754d3 | 1436 | |
0f2d19dd JB |
1437 | while ((n = read (oldfd, buf, sizeof buf)) > 0) |
1438 | if (write (newfd, buf, n) != n) | |
1439 | { | |
1440 | close (oldfd); | |
1441 | close (newfd); | |
1bbd0b84 | 1442 | SCM_SYSERROR; |
0f2d19dd JB |
1443 | } |
1444 | close (oldfd); | |
1445 | if (close (newfd) == -1) | |
1bbd0b84 | 1446 | SCM_SYSERROR; |
02b754d3 | 1447 | return SCM_UNSPECIFIED; |
0f2d19dd | 1448 | } |
1bbd0b84 | 1449 | #undef FUNC_NAME |
0f2d19dd JB |
1450 | |
1451 | \f | |
6a738a25 JB |
1452 | /* Filename manipulation */ |
1453 | ||
1454 | SCM scm_dot_string; | |
1455 | ||
a1ec6916 | 1456 | SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0, |
1bbd0b84 | 1457 | (SCM filename), |
fa6a543f MG |
1458 | "Return the directory name component of the file name\n" |
1459 | "@var{filename}. If @var{filename} does not contain a directory\n" | |
1460 | "component, @code{.} is returned.") | |
1bbd0b84 | 1461 | #define FUNC_NAME s_scm_dirname |
6a738a25 JB |
1462 | { |
1463 | char *s; | |
9fd38a3d DH |
1464 | long int i; |
1465 | unsigned long int len; | |
1466 | ||
1467 | SCM_VALIDATE_STRING (1,filename); | |
1468 | ||
34f0f2b8 | 1469 | s = SCM_STRING_CHARS (filename); |
9fd38a3d DH |
1470 | len = SCM_STRING_LENGTH (filename); |
1471 | ||
6a738a25 | 1472 | i = len - 1; |
82893676 MG |
1473 | #ifdef __MINGW32__ |
1474 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; | |
e0c73a1c | 1475 | while (i >= 0 && (s[i] != '/' && s[i] != '\\')) --i; |
82893676 MG |
1476 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; |
1477 | #else | |
6a738a25 JB |
1478 | while (i >= 0 && s[i] == '/') --i; |
1479 | while (i >= 0 && s[i] != '/') --i; | |
1480 | while (i >= 0 && s[i] == '/') --i; | |
82893676 | 1481 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1482 | if (i < 0) |
1483 | { | |
82893676 MG |
1484 | #ifdef __MINGW32__ |
1485 | if (len > 0 && (s[0] == '/' || s[0] == '\\')) | |
1486 | #else | |
6a738a25 | 1487 | if (len > 0 && s[0] == '/') |
82893676 | 1488 | #endif /* ndef __MINGW32__ */ |
d1ca2c64 | 1489 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); |
6a738a25 JB |
1490 | else |
1491 | return scm_dot_string; | |
1492 | } | |
1493 | else | |
d1ca2c64 | 1494 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (i + 1)); |
6a738a25 | 1495 | } |
1bbd0b84 | 1496 | #undef FUNC_NAME |
6a738a25 | 1497 | |
a1ec6916 | 1498 | SCM_DEFINE (scm_basename, "basename", 1, 1, 0, |
1bbd0b84 | 1499 | (SCM filename, SCM suffix), |
fa6a543f MG |
1500 | "Return the base name of the file name @var{filename}. The\n" |
1501 | "base name is the file name without any directory components.\n" | |
1502 | "If @var{suffix} is privided, and is equal to the end of\n" | |
1503 | "@var{basename}, it is removed also.") | |
1bbd0b84 | 1504 | #define FUNC_NAME s_scm_basename |
6a738a25 JB |
1505 | { |
1506 | char *f, *s = 0; | |
1507 | int i, j, len, end; | |
9fd38a3d DH |
1508 | |
1509 | SCM_VALIDATE_STRING (1,filename); | |
34f0f2b8 | 1510 | f = SCM_STRING_CHARS (filename); |
9fd38a3d DH |
1511 | len = SCM_STRING_LENGTH (filename); |
1512 | ||
6a738a25 JB |
1513 | if (SCM_UNBNDP (suffix)) |
1514 | j = -1; | |
1515 | else | |
1516 | { | |
9fd38a3d | 1517 | SCM_VALIDATE_STRING (2, suffix); |
34f0f2b8 | 1518 | s = SCM_STRING_CHARS (suffix); |
9fd38a3d | 1519 | j = SCM_STRING_LENGTH (suffix) - 1; |
6a738a25 | 1520 | } |
6a738a25 | 1521 | i = len - 1; |
82893676 MG |
1522 | #ifdef __MINGW32__ |
1523 | while (i >= 0 && (f[i] == '/' || f[i] == '\\')) --i; | |
1524 | #else | |
6a738a25 | 1525 | while (i >= 0 && f[i] == '/') --i; |
82893676 | 1526 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1527 | end = i; |
1528 | while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j; | |
1529 | if (j == -1) | |
1530 | end = i; | |
82893676 MG |
1531 | #ifdef __MINGW32__ |
1532 | while (i >= 0 && (f[i] != '/' || f[i] != '\\')) --i; | |
1533 | #else | |
6a738a25 | 1534 | while (i >= 0 && f[i] != '/') --i; |
82893676 | 1535 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1536 | if (i == end) |
1537 | { | |
82893676 MG |
1538 | #ifdef __MINGW32__ |
1539 | if (len > 0 && (f[0] == '/' || f[i] == '\\')) | |
1540 | #else | |
6a738a25 | 1541 | if (len > 0 && f[0] == '/') |
82893676 | 1542 | #endif /* ndef __MINGW32__ */ |
d1ca2c64 | 1543 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); |
6a738a25 JB |
1544 | else |
1545 | return scm_dot_string; | |
1546 | } | |
1547 | else | |
d1ca2c64 | 1548 | return scm_substring (filename, SCM_MAKINUM (i + 1), SCM_MAKINUM (end + 1)); |
6a738a25 | 1549 | } |
1bbd0b84 | 1550 | #undef FUNC_NAME |
6a738a25 JB |
1551 | |
1552 | ||
1553 | ||
1554 | \f | |
1cc91f1b | 1555 | |
0f2d19dd JB |
1556 | void |
1557 | scm_init_filesys () | |
0f2d19dd | 1558 | { |
e841c3e0 KN |
1559 | scm_tc16_dir = scm_make_smob_type ("directory", 0); |
1560 | scm_set_smob_free (scm_tc16_dir, scm_dir_free); | |
1561 | scm_set_smob_print (scm_tc16_dir, scm_dir_print); | |
0f2d19dd | 1562 | |
a163dda9 MD |
1563 | scm_dot_string = scm_permanent_object (scm_makfrom0str (".")); |
1564 | ||
3d8d56df | 1565 | #ifdef O_RDONLY |
86d31dfe | 1566 | scm_c_define ("O_RDONLY", scm_long2num (O_RDONLY)); |
3d8d56df GH |
1567 | #endif |
1568 | #ifdef O_WRONLY | |
86d31dfe | 1569 | scm_c_define ("O_WRONLY", scm_long2num (O_WRONLY)); |
3d8d56df GH |
1570 | #endif |
1571 | #ifdef O_RDWR | |
86d31dfe | 1572 | scm_c_define ("O_RDWR", scm_long2num (O_RDWR)); |
3d8d56df GH |
1573 | #endif |
1574 | #ifdef O_CREAT | |
86d31dfe | 1575 | scm_c_define ("O_CREAT", scm_long2num (O_CREAT)); |
3d8d56df GH |
1576 | #endif |
1577 | #ifdef O_EXCL | |
86d31dfe | 1578 | scm_c_define ("O_EXCL", scm_long2num (O_EXCL)); |
3d8d56df GH |
1579 | #endif |
1580 | #ifdef O_NOCTTY | |
86d31dfe | 1581 | scm_c_define ("O_NOCTTY", scm_long2num (O_NOCTTY)); |
3d8d56df GH |
1582 | #endif |
1583 | #ifdef O_TRUNC | |
86d31dfe | 1584 | scm_c_define ("O_TRUNC", scm_long2num (O_TRUNC)); |
3d8d56df GH |
1585 | #endif |
1586 | #ifdef O_APPEND | |
86d31dfe | 1587 | scm_c_define ("O_APPEND", scm_long2num (O_APPEND)); |
3d8d56df | 1588 | #endif |
6afcd3b2 | 1589 | #ifdef O_NONBLOCK |
86d31dfe | 1590 | scm_c_define ("O_NONBLOCK", scm_long2num (O_NONBLOCK)); |
3d8d56df GH |
1591 | #endif |
1592 | #ifdef O_NDELAY | |
86d31dfe | 1593 | scm_c_define ("O_NDELAY", scm_long2num (O_NDELAY)); |
3d8d56df GH |
1594 | #endif |
1595 | #ifdef O_SYNC | |
86d31dfe | 1596 | scm_c_define ("O_SYNC", scm_long2num (O_SYNC)); |
3d8d56df GH |
1597 | #endif |
1598 | ||
4c1feaa5 | 1599 | #ifdef F_DUPFD |
86d31dfe | 1600 | scm_c_define ("F_DUPFD", scm_long2num (F_DUPFD)); |
4c1feaa5 JB |
1601 | #endif |
1602 | #ifdef F_GETFD | |
86d31dfe | 1603 | scm_c_define ("F_GETFD", scm_long2num (F_GETFD)); |
4c1feaa5 JB |
1604 | #endif |
1605 | #ifdef F_SETFD | |
86d31dfe | 1606 | scm_c_define ("F_SETFD", scm_long2num (F_SETFD)); |
4c1feaa5 JB |
1607 | #endif |
1608 | #ifdef F_GETFL | |
86d31dfe | 1609 | scm_c_define ("F_GETFL", scm_long2num (F_GETFL)); |
4c1feaa5 JB |
1610 | #endif |
1611 | #ifdef F_SETFL | |
86d31dfe | 1612 | scm_c_define ("F_SETFL", scm_long2num (F_SETFL)); |
4c1feaa5 JB |
1613 | #endif |
1614 | #ifdef F_GETOWN | |
86d31dfe | 1615 | scm_c_define ("F_GETOWN", scm_long2num (F_GETOWN)); |
4c1feaa5 JB |
1616 | #endif |
1617 | #ifdef F_SETOWN | |
86d31dfe | 1618 | scm_c_define ("F_SETOWN", scm_long2num (F_SETOWN)); |
4c1feaa5 JB |
1619 | #endif |
1620 | #ifdef FD_CLOEXEC | |
86d31dfe | 1621 | scm_c_define ("FD_CLOEXEC", scm_long2num (FD_CLOEXEC)); |
bd9e24b3 | 1622 | #endif |
3d8d56df | 1623 | |
8dc9439f | 1624 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 1625 | #include "libguile/filesys.x" |
8dc9439f | 1626 | #endif |
0f2d19dd | 1627 | } |
89e00824 ML |
1628 | |
1629 | /* | |
1630 | Local Variables: | |
1631 | c-file-style: "gnu" | |
1632 | End: | |
1633 | */ |