Commit | Line | Data |
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11e1db06 | 1 | /* Copyright (C) 1996,1997,1998,1999,2000,2001, 2002, 2004 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e MV |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
73be1d9e MV |
8 | * This library 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 GNU | |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | */ | |
1bbd0b84 | 17 | |
1bbd0b84 | 18 | |
0f2d19dd | 19 | \f |
00fbf1e0 KR |
20 | #define _GNU_SOURCE /* ask glibc for everything */ |
21 | #define _POSIX_C_SOURCE 199506L /* for readdir_r elsewhere */ | |
6d484a0b | 22 | |
83079454 RB |
23 | #if HAVE_CONFIG_H |
24 | # include <config.h> | |
25 | #endif | |
26 | ||
3d8d56df | 27 | #include <stdio.h> |
e6e2e95a MD |
28 | #include <errno.h> |
29 | ||
a0599745 MD |
30 | #include "libguile/_scm.h" |
31 | #include "libguile/smob.h" | |
32 | #include "libguile/feature.h" | |
33 | #include "libguile/fports.h" | |
34 | #include "libguile/iselect.h" | |
35 | #include "libguile/strings.h" | |
36 | #include "libguile/vectors.h" | |
c96d76b8 | 37 | #include "libguile/lang.h" |
0f2d19dd | 38 | |
a0599745 MD |
39 | #include "libguile/validate.h" |
40 | #include "libguile/filesys.h" | |
def804a3 | 41 | |
0f2d19dd | 42 | \f |
def804a3 JB |
43 | #ifdef HAVE_IO_H |
44 | #include <io.h> | |
45 | #endif | |
46 | ||
e0c73a1c MV |
47 | #ifdef HAVE_DIRECT_H |
48 | #include <direct.h> | |
49 | #endif | |
50 | ||
0f2d19dd JB |
51 | #ifdef TIME_WITH_SYS_TIME |
52 | # include <sys/time.h> | |
53 | # include <time.h> | |
54 | #else | |
55 | # if HAVE_SYS_TIME_H | |
56 | # include <sys/time.h> | |
57 | # else | |
58 | # include <time.h> | |
59 | # endif | |
60 | #endif | |
61 | ||
62 | #ifdef HAVE_UNISTD_H | |
63 | #include <unistd.h> | |
64 | #endif | |
65 | ||
3594582b | 66 | #ifdef LIBC_H_WITH_UNISTD_H |
1f9e2226 JB |
67 | #include <libc.h> |
68 | #endif | |
69 | ||
0f2d19dd JB |
70 | #ifdef HAVE_SYS_SELECT_H |
71 | #include <sys/select.h> | |
72 | #endif | |
73 | ||
1f9e2226 JB |
74 | #ifdef HAVE_STRING_H |
75 | #include <string.h> | |
76 | #endif | |
77 | ||
8cc71382 | 78 | #include <sys/types.h> |
0f2d19dd JB |
79 | #include <sys/stat.h> |
80 | #include <fcntl.h> | |
81 | ||
82893676 | 82 | #ifdef HAVE_PWD_H |
0f2d19dd | 83 | #include <pwd.h> |
82893676 | 84 | #endif |
0f2d19dd JB |
85 | |
86 | ||
e0c73a1c MV |
87 | #if defined (__MINGW32__) || defined (_MSC_VER) || defined (__BORLANDC__) |
88 | # include "win32-dirent.h" | |
89 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
90 | #elif HAVE_DIRENT_H | |
0f2d19dd JB |
91 | # include <dirent.h> |
92 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
93 | #else | |
94 | # define dirent direct | |
95 | # define NAMLEN(dirent) (dirent)->d_namlen | |
96 | # if HAVE_SYS_NDIR_H | |
97 | # include <sys/ndir.h> | |
98 | # endif | |
99 | # if HAVE_SYS_DIR_H | |
100 | # include <sys/dir.h> | |
101 | # endif | |
102 | # if HAVE_NDIR_H | |
103 | # include <ndir.h> | |
104 | # endif | |
105 | #endif | |
106 | ||
d7b8a21a JB |
107 | /* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */ |
108 | #if defined (S_IFSOCK) && ! defined (S_ISSOCK) | |
109 | #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) | |
110 | #endif | |
82893676 MG |
111 | |
112 | /* The MinGW gcc does not define the S_ISSOCK macro. Any other native Windows | |
113 | compiler like BorlandC or MSVC has none of these macros defined. */ | |
114 | #ifdef __MINGW32__ | |
8f99e3f3 SJ |
115 | |
116 | # ifdef _S_IFIFO | |
117 | # undef _S_IFIFO | |
118 | # endif | |
119 | # ifdef _S_IFCHR | |
120 | # undef _S_IFCHR | |
121 | # endif | |
122 | # ifdef _S_IFBLK | |
123 | # undef _S_IFBLK | |
124 | # endif | |
125 | # ifdef _S_IFDIR | |
126 | # undef _S_IFDIR | |
127 | # endif | |
128 | # ifdef _S_IFREG | |
129 | # undef _S_IFREG | |
130 | # endif | |
131 | # ifdef _S_IFSOCK | |
132 | # undef _S_IFSOCK | |
133 | # endif | |
134 | ||
135 | # define _S_IFIFO 0x1000 /* FIFO */ | |
136 | # define _S_IFCHR 0x2000 /* Character */ | |
137 | # define _S_IFBLK 0x3000 /* Block */ | |
138 | # define _S_IFDIR 0x4000 /* Directory */ | |
139 | # define _S_IFREG 0x8000 /* Regular */ | |
140 | # define _S_IFSOCK 0xC000 /* Socket */ | |
141 | ||
142 | # ifdef S_ISBLK | |
143 | # undef S_ISBLK | |
144 | # endif | |
145 | # ifdef S_ISFIFO | |
146 | # undef S_ISFIFO | |
147 | # endif | |
148 | # ifdef S_ISCHR | |
149 | # undef S_ISCHR | |
150 | # endif | |
151 | # ifdef S_ISDIR | |
152 | # undef S_ISDIR | |
153 | # endif | |
154 | # ifdef S_ISREG | |
155 | # undef S_ISREG | |
156 | # endif | |
157 | # ifdef S_ISSOCK | |
158 | # undef S_ISSOCK | |
159 | # endif | |
160 | ||
161 | # define S_ISBLK(mode) (((mode) & _S_IFMT) == _S_IFBLK) | |
82893676 | 162 | # define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO) |
8f99e3f3 SJ |
163 | # define S_ISCHR(mode) (((mode) & _S_IFMT) == _S_IFCHR) |
164 | # define S_ISDIR(mode) (((mode) & _S_IFMT) == _S_IFDIR) | |
165 | # define S_ISREG(mode) (((mode) & _S_IFMT) == _S_IFREG) | |
166 | # define S_ISSOCK(mode) (((mode) & _S_IFMT) == _S_IFSOCK) | |
167 | ||
168 | #endif /* __MINGW32__ */ | |
82893676 MG |
169 | |
170 | /* Some more definitions for the native Windows port. */ | |
171 | #ifdef __MINGW32__ | |
172 | # define mkdir(path, mode) mkdir (path) | |
173 | # define fsync(fd) _commit (fd) | |
174 | # define fchmod(fd, mode) (-1) | |
175 | #endif /* __MINGW32__ */ | |
0f2d19dd JB |
176 | \f |
177 | ||
0f2d19dd JB |
178 | |
179 | \f | |
180 | ||
181 | /* {Permissions} | |
182 | */ | |
183 | ||
82893676 | 184 | #ifdef HAVE_CHOWN |
a1ec6916 | 185 | SCM_DEFINE (scm_chown, "chown", 3, 0, 0, |
1bbd0b84 | 186 | (SCM object, SCM owner, SCM group), |
d831b039 GH |
187 | "Change the ownership and group of the file referred to by @var{object} to\n" |
188 | "the integer values @var{owner} and @var{group}. @var{object} can be\n" | |
189 | "a string containing a file name or, if the platform\n" | |
190 | "supports fchown, a port or integer file descriptor\n" | |
191 | "which is open on the file. The return value\n" | |
d3818c29 | 192 | "is unspecified.\n\n" |
d831b039 | 193 | "If @var{object} is a symbolic link, either the\n" |
d3818c29 MD |
194 | "ownership of the link or the ownership of the referenced file will be\n" |
195 | "changed depending on the operating system (lchown is\n" | |
196 | "unsupported at present). If @var{owner} or @var{group} is specified\n" | |
197 | "as @code{-1}, then that ID is not changed.") | |
1bbd0b84 | 198 | #define FUNC_NAME s_scm_chown |
0f2d19dd | 199 | { |
6afcd3b2 | 200 | int rv; |
02b754d3 | 201 | |
78446828 MV |
202 | object = SCM_COERCE_OUTPORT (object); |
203 | ||
34d19ef6 HWN |
204 | SCM_VALIDATE_INUM (2, owner); |
205 | SCM_VALIDATE_INUM (3, group); | |
d831b039 | 206 | #ifdef HAVE_FCHOWN |
0c95b57d | 207 | if (SCM_INUMP (object) || (SCM_OPFPORTP (object))) |
6afcd3b2 | 208 | { |
d831b039 GH |
209 | int fdes = SCM_INUMP (object) ? SCM_INUM (object) |
210 | : SCM_FPORT_FDES (object); | |
211 | ||
6afcd3b2 GH |
212 | SCM_SYSCALL (rv = fchown (fdes, SCM_INUM (owner), SCM_INUM (group))); |
213 | } | |
214 | else | |
d831b039 | 215 | #endif |
6afcd3b2 | 216 | { |
a6d9e5ab | 217 | SCM_VALIDATE_STRING (1, object); |
a6d9e5ab | 218 | SCM_SYSCALL (rv = chown (SCM_STRING_CHARS (object), |
6afcd3b2 GH |
219 | SCM_INUM (owner), SCM_INUM (group))); |
220 | } | |
221 | if (rv == -1) | |
1bbd0b84 | 222 | SCM_SYSERROR; |
02b754d3 | 223 | return SCM_UNSPECIFIED; |
0f2d19dd | 224 | } |
1bbd0b84 | 225 | #undef FUNC_NAME |
82893676 | 226 | #endif /* HAVE_CHOWN */ |
0f2d19dd JB |
227 | |
228 | ||
a1ec6916 | 229 | SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0, |
1bbd0b84 | 230 | (SCM object, SCM mode), |
d3818c29 MD |
231 | "Changes the permissions of the file referred to by @var{obj}.\n" |
232 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
233 | "descriptor which is open on a file (in which case @code{fchmod} is used\n" | |
234 | "as the underlying system call).\n" | |
235 | "@var{mode} specifies\n" | |
236 | "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n" | |
237 | "The return value is unspecified.") | |
1bbd0b84 | 238 | #define FUNC_NAME s_scm_chmod |
0f2d19dd JB |
239 | { |
240 | int rv; | |
6afcd3b2 GH |
241 | int fdes; |
242 | ||
78446828 MV |
243 | object = SCM_COERCE_OUTPORT (object); |
244 | ||
34d19ef6 | 245 | SCM_VALIDATE_INUM (2, mode); |
0c95b57d | 246 | if (SCM_INUMP (object) || SCM_OPFPORTP (object)) |
89958ad0 | 247 | { |
6afcd3b2 GH |
248 | if (SCM_INUMP (object)) |
249 | fdes = SCM_INUM (object); | |
250 | else | |
77a76b64 | 251 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 | 252 | SCM_SYSCALL (rv = fchmod (fdes, SCM_INUM (mode))); |
89958ad0 | 253 | } |
0f2d19dd JB |
254 | else |
255 | { | |
a6d9e5ab | 256 | SCM_VALIDATE_STRING (1, object); |
a6d9e5ab | 257 | SCM_SYSCALL (rv = chmod (SCM_STRING_CHARS (object), SCM_INUM (mode))); |
0f2d19dd | 258 | } |
6afcd3b2 | 259 | if (rv == -1) |
1bbd0b84 | 260 | SCM_SYSERROR; |
02b754d3 | 261 | return SCM_UNSPECIFIED; |
0f2d19dd | 262 | } |
1bbd0b84 | 263 | #undef FUNC_NAME |
0f2d19dd | 264 | |
a1ec6916 | 265 | SCM_DEFINE (scm_umask, "umask", 0, 1, 0, |
1bbd0b84 | 266 | (SCM mode), |
bb2c02f2 | 267 | "If @var{mode} is omitted, returns a decimal number representing the current\n" |
d3818c29 MD |
268 | "file creation mask. Otherwise the file creation mask is set to\n" |
269 | "@var{mode} and the previous value is returned.\n\n" | |
270 | "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.") | |
1bbd0b84 | 271 | #define FUNC_NAME s_scm_umask |
0f2d19dd JB |
272 | { |
273 | mode_t mask; | |
274 | if (SCM_UNBNDP (mode)) | |
275 | { | |
276 | mask = umask (0); | |
277 | umask (mask); | |
278 | } | |
279 | else | |
280 | { | |
34d19ef6 | 281 | SCM_VALIDATE_INUM (1, mode); |
0f2d19dd JB |
282 | mask = umask (SCM_INUM (mode)); |
283 | } | |
284 | return SCM_MAKINUM (mask); | |
285 | } | |
1bbd0b84 | 286 | #undef FUNC_NAME |
0f2d19dd JB |
287 | |
288 | \f | |
0f2d19dd | 289 | |
a1ec6916 | 290 | SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0, |
1bbd0b84 | 291 | (SCM path, SCM flags, SCM mode), |
1e6808ea MG |
292 | "Similar to @code{open} but return a file descriptor instead of\n" |
293 | "a port.") | |
1bbd0b84 | 294 | #define FUNC_NAME s_scm_open_fdes |
0f2d19dd JB |
295 | { |
296 | int fd; | |
3d8d56df | 297 | int iflags; |
6afcd3b2 | 298 | int imode; |
0f2d19dd | 299 | |
a6d9e5ab | 300 | SCM_VALIDATE_STRING (1, path); |
1be6b49c ML |
301 | iflags = SCM_NUM2INT (2, flags); |
302 | imode = SCM_NUM2INT_DEF (3, mode, 0666); | |
a6d9e5ab | 303 | SCM_SYSCALL (fd = open (SCM_STRING_CHARS (path), iflags, imode)); |
3d8d56df | 304 | if (fd == -1) |
1bbd0b84 | 305 | SCM_SYSERROR; |
6afcd3b2 GH |
306 | return SCM_MAKINUM (fd); |
307 | } | |
1bbd0b84 | 308 | #undef FUNC_NAME |
6afcd3b2 | 309 | |
a1ec6916 | 310 | SCM_DEFINE (scm_open, "open", 2, 1, 0, |
1bbd0b84 | 311 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
312 | "Open the file named by @var{path} for reading and/or writing.\n" |
313 | "@var{flags} is an integer specifying how the file should be opened.\n" | |
314 | "@var{mode} is an integer specifying the permission bits of the file, if\n" | |
315 | "it needs to be created, before the umask is applied. The default is 666\n" | |
316 | "(Unix itself has no default).\n\n" | |
317 | "@var{flags} can be constructed by combining variables using @code{logior}.\n" | |
318 | "Basic flags are:\n\n" | |
319 | "@defvar O_RDONLY\n" | |
320 | "Open the file read-only.\n" | |
321 | "@end defvar\n" | |
322 | "@defvar O_WRONLY\n" | |
9401323e | 323 | "Open the file write-only.\n" |
d3818c29 MD |
324 | "@end defvar\n" |
325 | "@defvar O_RDWR\n" | |
326 | "Open the file read/write.\n" | |
327 | "@end defvar\n" | |
328 | "@defvar O_APPEND\n" | |
329 | "Append to the file instead of truncating.\n" | |
330 | "@end defvar\n" | |
331 | "@defvar O_CREAT\n" | |
332 | "Create the file if it does not already exist.\n" | |
333 | "@end defvar\n\n" | |
334 | "See the Unix documentation of the @code{open} system call\n" | |
335 | "for additional flags.") | |
1bbd0b84 | 336 | #define FUNC_NAME s_scm_open |
6afcd3b2 GH |
337 | { |
338 | SCM newpt; | |
339 | char *port_mode; | |
340 | int fd; | |
6afcd3b2 GH |
341 | int iflags; |
342 | ||
343 | fd = SCM_INUM (scm_open_fdes (path, flags, mode)); | |
1be6b49c | 344 | iflags = SCM_NUM2INT (2, flags); |
3d8d56df | 345 | if (iflags & O_RDWR) |
77a76b64 JB |
346 | { |
347 | if (iflags & O_APPEND) | |
348 | port_mode = "a+"; | |
349 | else if (iflags & O_CREAT) | |
350 | port_mode = "w+"; | |
351 | else | |
352 | port_mode = "r+"; | |
353 | } | |
3d8d56df | 354 | else { |
77a76b64 JB |
355 | if (iflags & O_APPEND) |
356 | port_mode = "a"; | |
357 | else if (iflags & O_WRONLY) | |
3d8d56df GH |
358 | port_mode = "w"; |
359 | else | |
360 | port_mode = "r"; | |
361 | } | |
77a76b64 | 362 | newpt = scm_fdes_to_port (fd, port_mode, path); |
3d8d56df | 363 | return newpt; |
0f2d19dd | 364 | } |
1bbd0b84 | 365 | #undef FUNC_NAME |
0f2d19dd | 366 | |
a1ec6916 | 367 | SCM_DEFINE (scm_close, "close", 1, 0, 0, |
1bbd0b84 | 368 | (SCM fd_or_port), |
8f85c0c6 | 369 | "Similar to close-port (@pxref{Closing, close-port}),\n" |
d3818c29 MD |
370 | "but also works on file descriptors. A side\n" |
371 | "effect of closing a file descriptor is that any ports using that file\n" | |
372 | "descriptor are moved to a different file descriptor and have\n" | |
373 | "their revealed counts set to zero.") | |
1bbd0b84 | 374 | #define FUNC_NAME s_scm_close |
eadd48de GH |
375 | { |
376 | int rv; | |
377 | int fd; | |
378 | ||
78446828 MV |
379 | fd_or_port = SCM_COERCE_OUTPORT (fd_or_port); |
380 | ||
0c95b57d | 381 | if (SCM_PORTP (fd_or_port)) |
eadd48de | 382 | return scm_close_port (fd_or_port); |
34d19ef6 | 383 | SCM_VALIDATE_INUM (1, fd_or_port); |
eadd48de | 384 | fd = SCM_INUM (fd_or_port); |
eadd48de | 385 | scm_evict_ports (fd); /* see scsh manual. */ |
a9488d12 | 386 | SCM_SYSCALL (rv = close (fd)); |
eadd48de GH |
387 | /* following scsh, closing an already closed file descriptor is |
388 | not an error. */ | |
389 | if (rv < 0 && errno != EBADF) | |
1bbd0b84 | 390 | SCM_SYSERROR; |
7888309b | 391 | return scm_from_bool (rv >= 0); |
eadd48de | 392 | } |
1bbd0b84 | 393 | #undef FUNC_NAME |
eadd48de | 394 | |
c2ca4493 GH |
395 | SCM_DEFINE (scm_close_fdes, "close-fdes", 1, 0, 0, |
396 | (SCM fd), | |
397 | "A simple wrapper for the @code{close} system call.\n" | |
398 | "Close file descriptor @var{fd}, which must be an integer.\n" | |
399 | "Unlike close (@pxref{Ports and File Descriptors, close}),\n" | |
400 | "the file descriptor will be closed even if a port is using it.\n" | |
401 | "The return value is unspecified.") | |
402 | #define FUNC_NAME s_scm_close_fdes | |
403 | { | |
404 | int c_fd; | |
405 | int rv; | |
406 | ||
407 | SCM_VALIDATE_INUM_COPY (1, fd, c_fd); | |
408 | SCM_SYSCALL (rv = close (c_fd)); | |
409 | if (rv < 0) | |
410 | SCM_SYSERROR; | |
411 | return SCM_UNSPECIFIED; | |
412 | } | |
413 | #undef FUNC_NAME | |
414 | ||
0f2d19dd JB |
415 | \f |
416 | /* {Files} | |
417 | */ | |
1cc91f1b | 418 | |
ae5253c5 GH |
419 | SCM_SYMBOL (scm_sym_regular, "regular"); |
420 | SCM_SYMBOL (scm_sym_directory, "directory"); | |
f326ecf3 | 421 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 422 | SCM_SYMBOL (scm_sym_symlink, "symlink"); |
f326ecf3 | 423 | #endif |
ae5253c5 GH |
424 | SCM_SYMBOL (scm_sym_block_special, "block-special"); |
425 | SCM_SYMBOL (scm_sym_char_special, "char-special"); | |
426 | SCM_SYMBOL (scm_sym_fifo, "fifo"); | |
427 | SCM_SYMBOL (scm_sym_sock, "socket"); | |
428 | SCM_SYMBOL (scm_sym_unknown, "unknown"); | |
429 | ||
0f2d19dd | 430 | static SCM |
1bbd0b84 | 431 | scm_stat2scm (struct stat *stat_temp) |
0f2d19dd | 432 | { |
00ffa0e7 | 433 | SCM ans = scm_c_make_vector (15, SCM_UNSPECIFIED); |
ae5253c5 | 434 | |
34d19ef6 HWN |
435 | SCM_VECTOR_SET(ans, 0, scm_ulong2num ((unsigned long) stat_temp->st_dev)); |
436 | SCM_VECTOR_SET(ans, 1, scm_ulong2num ((unsigned long) stat_temp->st_ino)); | |
437 | SCM_VECTOR_SET(ans, 2, scm_ulong2num ((unsigned long) stat_temp->st_mode)); | |
438 | SCM_VECTOR_SET(ans, 3, scm_ulong2num ((unsigned long) stat_temp->st_nlink)); | |
439 | SCM_VECTOR_SET(ans, 4, scm_ulong2num ((unsigned long) stat_temp->st_uid)); | |
440 | SCM_VECTOR_SET(ans, 5, scm_ulong2num ((unsigned long) stat_temp->st_gid)); | |
1fd85bc5 | 441 | #ifdef HAVE_STRUCT_STAT_ST_RDEV |
34d19ef6 | 442 | SCM_VECTOR_SET(ans, 6, scm_ulong2num ((unsigned long) stat_temp->st_rdev)); |
0f2d19dd | 443 | #else |
34d19ef6 | 444 | SCM_VECTOR_SET(ans, 6, SCM_BOOL_F); |
0f2d19dd | 445 | #endif |
34d19ef6 HWN |
446 | SCM_VECTOR_SET(ans, 7, scm_ulong2num ((unsigned long) stat_temp->st_size)); |
447 | SCM_VECTOR_SET(ans, 8, scm_ulong2num ((unsigned long) stat_temp->st_atime)); | |
448 | SCM_VECTOR_SET(ans, 9, scm_ulong2num ((unsigned long) stat_temp->st_mtime)); | |
449 | SCM_VECTOR_SET(ans, 10, scm_ulong2num ((unsigned long) stat_temp->st_ctime)); | |
1fd85bc5 | 450 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
34d19ef6 | 451 | SCM_VECTOR_SET(ans, 11, scm_ulong2num ((unsigned long) stat_temp->st_blksize)); |
0f2d19dd | 452 | #else |
34d19ef6 | 453 | SCM_VECTOR_SET(ans, 11, scm_ulong2num (4096L)); |
0f2d19dd | 454 | #endif |
1fd85bc5 | 455 | #ifdef HAVE_STRUCT_STAT_ST_BLOCKS |
34d19ef6 | 456 | SCM_VECTOR_SET(ans, 12, scm_ulong2num ((unsigned long) stat_temp->st_blocks)); |
0f2d19dd | 457 | #else |
34d19ef6 | 458 | SCM_VECTOR_SET(ans, 12, SCM_BOOL_F); |
0f2d19dd | 459 | #endif |
ae5253c5 GH |
460 | { |
461 | int mode = stat_temp->st_mode; | |
462 | ||
463 | if (S_ISREG (mode)) | |
34d19ef6 | 464 | SCM_VECTOR_SET(ans, 13, scm_sym_regular); |
ae5253c5 | 465 | else if (S_ISDIR (mode)) |
34d19ef6 | 466 | SCM_VECTOR_SET(ans, 13, scm_sym_directory); |
f326ecf3 | 467 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 468 | else if (S_ISLNK (mode)) |
34d19ef6 | 469 | SCM_VECTOR_SET(ans, 13, scm_sym_symlink); |
f326ecf3 | 470 | #endif |
ae5253c5 | 471 | else if (S_ISBLK (mode)) |
34d19ef6 | 472 | SCM_VECTOR_SET(ans, 13, scm_sym_block_special); |
ae5253c5 | 473 | else if (S_ISCHR (mode)) |
34d19ef6 | 474 | SCM_VECTOR_SET(ans, 13, scm_sym_char_special); |
ae5253c5 | 475 | else if (S_ISFIFO (mode)) |
34d19ef6 | 476 | SCM_VECTOR_SET(ans, 13, scm_sym_fifo); |
e655d034 | 477 | #ifdef S_ISSOCK |
ae5253c5 | 478 | else if (S_ISSOCK (mode)) |
34d19ef6 | 479 | SCM_VECTOR_SET(ans, 13, scm_sym_sock); |
e655d034 | 480 | #endif |
ae5253c5 | 481 | else |
34d19ef6 | 482 | SCM_VECTOR_SET(ans, 13, scm_sym_unknown); |
ae5253c5 | 483 | |
34d19ef6 | 484 | SCM_VECTOR_SET(ans, 14, SCM_MAKINUM ((~S_IFMT) & mode)); |
ae5253c5 GH |
485 | |
486 | /* the layout of the bits in ve[14] is intended to be portable. | |
487 | If there are systems that don't follow the usual convention, | |
488 | the following could be used: | |
489 | ||
490 | tmp = 0; | |
491 | if (S_ISUID & mode) tmp += 1; | |
492 | tmp <<= 1; | |
493 | if (S_IRGRP & mode) tmp += 1; | |
494 | tmp <<= 1; | |
495 | if (S_ISVTX & mode) tmp += 1; | |
496 | tmp <<= 1; | |
497 | if (S_IRUSR & mode) tmp += 1; | |
498 | tmp <<= 1; | |
499 | if (S_IWUSR & mode) tmp += 1; | |
500 | tmp <<= 1; | |
501 | if (S_IXUSR & mode) tmp += 1; | |
502 | tmp <<= 1; | |
503 | if (S_IWGRP & mode) tmp += 1; | |
504 | tmp <<= 1; | |
505 | if (S_IXGRP & mode) tmp += 1; | |
506 | tmp <<= 1; | |
507 | if (S_IROTH & mode) tmp += 1; | |
508 | tmp <<= 1; | |
509 | if (S_IWOTH & mode) tmp += 1; | |
510 | tmp <<= 1; | |
511 | if (S_IXOTH & mode) tmp += 1; | |
512 | ||
34d19ef6 | 513 | SCM_VECTOR_SET(ans, 14, SCM_MAKINUM (tmp)); |
ae5253c5 GH |
514 | |
515 | */ | |
516 | } | |
0f2d19dd JB |
517 | |
518 | return ans; | |
519 | } | |
520 | ||
e0c73a1c MV |
521 | #ifdef __MINGW32__ |
522 | /* | |
523 | * Try getting the appropiate stat buffer for a given file descriptor | |
524 | * under Windows. It differentiates between file, pipe and socket | |
525 | * descriptors. | |
526 | */ | |
527 | static int fstat_Win32 (int fdes, struct stat *buf) | |
528 | { | |
529 | int error, optlen = sizeof (int); | |
530 | ||
531 | memset (buf, 0, sizeof (struct stat)); | |
532 | ||
533 | /* Is this a socket ? */ | |
534 | if (getsockopt (fdes, SOL_SOCKET, SO_ERROR, (void *) &error, &optlen) >= 0) | |
535 | { | |
536 | buf->st_mode = _S_IFSOCK | _S_IREAD | _S_IWRITE | _S_IEXEC; | |
537 | buf->st_nlink = 1; | |
538 | buf->st_atime = buf->st_ctime = buf->st_mtime = time (NULL); | |
539 | return 0; | |
540 | } | |
541 | /* Maybe a regular file or pipe ? */ | |
542 | return fstat (fdes, buf); | |
543 | } | |
544 | #endif /* __MINGW32__ */ | |
545 | ||
a1ec6916 | 546 | SCM_DEFINE (scm_stat, "stat", 1, 0, 0, |
1bbd0b84 | 547 | (SCM object), |
1e6808ea MG |
548 | "Return an object containing various information about the file\n" |
549 | "determined by @var{obj}. @var{obj} can be a string containing\n" | |
550 | "a file name or a port or integer file descriptor which is open\n" | |
551 | "on a file (in which case @code{fstat} is used as the underlying\n" | |
552 | "system call).\n" | |
553 | "\n" | |
554 | "The object returned by @code{stat} can be passed as a single\n" | |
555 | "parameter to the following procedures, all of which return\n" | |
556 | "integers:\n" | |
557 | "\n" | |
d3818c29 MD |
558 | "@table @code\n" |
559 | "@item stat:dev\n" | |
560 | "The device containing the file.\n" | |
561 | "@item stat:ino\n" | |
1e6808ea MG |
562 | "The file serial number, which distinguishes this file from all\n" |
563 | "other files on the same device.\n" | |
d3818c29 | 564 | "@item stat:mode\n" |
1e6808ea MG |
565 | "The mode of the file. This includes file type information and\n" |
566 | "the file permission bits. See @code{stat:type} and\n" | |
567 | "@code{stat:perms} below.\n" | |
d3818c29 MD |
568 | "@item stat:nlink\n" |
569 | "The number of hard links to the file.\n" | |
570 | "@item stat:uid\n" | |
571 | "The user ID of the file's owner.\n" | |
572 | "@item stat:gid\n" | |
573 | "The group ID of the file.\n" | |
574 | "@item stat:rdev\n" | |
575 | "Device ID; this entry is defined only for character or block\n" | |
576 | "special files.\n" | |
577 | "@item stat:size\n" | |
578 | "The size of a regular file in bytes.\n" | |
579 | "@item stat:atime\n" | |
580 | "The last access time for the file.\n" | |
581 | "@item stat:mtime\n" | |
582 | "The last modification time for the file.\n" | |
583 | "@item stat:ctime\n" | |
584 | "The last modification time for the attributes of the file.\n" | |
585 | "@item stat:blksize\n" | |
1e6808ea MG |
586 | "The optimal block size for reading or writing the file, in\n" |
587 | "bytes.\n" | |
d3818c29 | 588 | "@item stat:blocks\n" |
1e6808ea MG |
589 | "The amount of disk space that the file occupies measured in\n" |
590 | "units of 512 byte blocks.\n" | |
591 | "@end table\n" | |
592 | "\n" | |
d3818c29 | 593 | "In addition, the following procedures return the information\n" |
1e6808ea MG |
594 | "from stat:mode in a more convenient form:\n" |
595 | "\n" | |
d3818c29 MD |
596 | "@table @code\n" |
597 | "@item stat:type\n" | |
598 | "A symbol representing the type of file. Possible values are\n" | |
1e6808ea MG |
599 | "regular, directory, symlink, block-special, char-special, fifo,\n" |
600 | "socket and unknown\n" | |
d3818c29 MD |
601 | "@item stat:perms\n" |
602 | "An integer representing the access permission bits.\n" | |
603 | "@end table") | |
1bbd0b84 | 604 | #define FUNC_NAME s_scm_stat |
0f2d19dd | 605 | { |
6afcd3b2 GH |
606 | int rv; |
607 | int fdes; | |
0f2d19dd JB |
608 | struct stat stat_temp; |
609 | ||
1ea47048 | 610 | if (SCM_INUMP (object)) |
36284627 | 611 | { |
e0c73a1c MV |
612 | #ifdef __MINGW32__ |
613 | SCM_SYSCALL (rv = fstat_Win32 (SCM_INUM (object), &stat_temp)); | |
614 | #else | |
36284627 | 615 | SCM_SYSCALL (rv = fstat (SCM_INUM (object), &stat_temp)); |
e0c73a1c | 616 | #endif |
36284627 DH |
617 | } |
618 | else if (SCM_STRINGP (object)) | |
619 | { | |
e0c73a1c MV |
620 | #ifdef __MINGW32__ |
621 | char *p, *file = strdup (SCM_STRING_CHARS (object)); | |
622 | p = file + strlen (file) - 1; | |
623 | while (p > file && (*p == '/' || *p == '\\')) | |
624 | *p-- = '\0'; | |
625 | SCM_SYSCALL (rv = stat (file, &stat_temp)); | |
626 | free (file); | |
627 | #else | |
36284627 | 628 | SCM_SYSCALL (rv = stat (SCM_STRING_CHARS (object), &stat_temp)); |
e0c73a1c | 629 | #endif |
36284627 | 630 | } |
1ea47048 | 631 | else |
0f2d19dd | 632 | { |
36284627 DH |
633 | object = SCM_COERCE_OUTPORT (object); |
634 | SCM_VALIDATE_OPFPORT (1, object); | |
635 | fdes = SCM_FPORT_FDES (object); | |
e0c73a1c MV |
636 | #ifdef __MINGW32__ |
637 | SCM_SYSCALL (rv = fstat_Win32 (fdes, &stat_temp)); | |
638 | #else | |
36284627 | 639 | SCM_SYSCALL (rv = fstat (fdes, &stat_temp)); |
e0c73a1c | 640 | #endif |
6afcd3b2 | 641 | } |
36284627 | 642 | |
6afcd3b2 | 643 | if (rv == -1) |
3d8d56df GH |
644 | { |
645 | int en = errno; | |
646 | ||
5d2d2ffc | 647 | SCM_SYSERROR_MSG ("~A: ~S", |
1afff620 KN |
648 | scm_list_2 (scm_makfrom0str (strerror (errno)), |
649 | object), | |
e0c08f17 | 650 | en); |
3d8d56df | 651 | } |
02b754d3 | 652 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 653 | } |
1bbd0b84 | 654 | #undef FUNC_NAME |
0f2d19dd | 655 | |
0f2d19dd JB |
656 | \f |
657 | /* {Modifying Directories} | |
658 | */ | |
659 | ||
82893676 | 660 | #ifdef HAVE_LINK |
a1ec6916 | 661 | SCM_DEFINE (scm_link, "link", 2, 0, 0, |
1bbd0b84 | 662 | (SCM oldpath, SCM newpath), |
6d36532c GH |
663 | "Creates a new name @var{newpath} in the file system for the\n" |
664 | "file named by @var{oldpath}. If @var{oldpath} is a symbolic\n" | |
665 | "link, the link may or may not be followed depending on the\n" | |
666 | "system.") | |
1bbd0b84 | 667 | #define FUNC_NAME s_scm_link |
0f2d19dd JB |
668 | { |
669 | int val; | |
02b754d3 | 670 | |
a6d9e5ab | 671 | SCM_VALIDATE_STRING (1, oldpath); |
a6d9e5ab | 672 | SCM_VALIDATE_STRING (2, newpath); |
6d36532c GH |
673 | SCM_SYSCALL (val = link (SCM_STRING_CHARS (oldpath), |
674 | SCM_STRING_CHARS (newpath))); | |
02b754d3 | 675 | if (val != 0) |
1bbd0b84 | 676 | SCM_SYSERROR; |
02b754d3 | 677 | return SCM_UNSPECIFIED; |
0f2d19dd | 678 | } |
1bbd0b84 | 679 | #undef FUNC_NAME |
82893676 | 680 | #endif /* HAVE_LINK */ |
0f2d19dd JB |
681 | |
682 | ||
683 | ||
a1ec6916 | 684 | SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, |
1bbd0b84 | 685 | (SCM oldname, SCM newname), |
6d36532c | 686 | "Renames the file specified by @var{oldname} to @var{newname}.\n" |
d3818c29 | 687 | "The return value is unspecified.") |
1bbd0b84 | 688 | #define FUNC_NAME s_scm_rename |
0f2d19dd JB |
689 | { |
690 | int rv; | |
a6d9e5ab DH |
691 | SCM_VALIDATE_STRING (1, oldname); |
692 | SCM_VALIDATE_STRING (2, newname); | |
0f2d19dd | 693 | #ifdef HAVE_RENAME |
a6d9e5ab | 694 | SCM_SYSCALL (rv = rename (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname))); |
0f2d19dd | 695 | #else |
a6d9e5ab | 696 | SCM_SYSCALL (rv = link (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname))); |
02b754d3 | 697 | if (rv == 0) |
0f2d19dd | 698 | { |
a6d9e5ab | 699 | SCM_SYSCALL (rv = unlink (SCM_STRING_CHARS (oldname)));; |
02b754d3 | 700 | if (rv != 0) |
0f2d19dd | 701 | /* unlink failed. remove new name */ |
a6d9e5ab | 702 | SCM_SYSCALL (unlink (SCM_STRING_CHARS (newname))); |
0f2d19dd | 703 | } |
6afcd3b2 | 704 | #endif |
02b754d3 | 705 | if (rv != 0) |
1bbd0b84 | 706 | SCM_SYSERROR; |
02b754d3 | 707 | return SCM_UNSPECIFIED; |
0f2d19dd | 708 | } |
1bbd0b84 | 709 | #undef FUNC_NAME |
0f2d19dd JB |
710 | |
711 | ||
3b3b36dd | 712 | SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, |
1bbd0b84 | 713 | (SCM str), |
d3818c29 | 714 | "Deletes (or \"unlinks\") the file specified by @var{path}.") |
1bbd0b84 | 715 | #define FUNC_NAME s_scm_delete_file |
2f3ed1ba JB |
716 | { |
717 | int ans; | |
a6d9e5ab | 718 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 719 | SCM_SYSCALL (ans = unlink (SCM_STRING_CHARS (str))); |
2f3ed1ba | 720 | if (ans != 0) |
1bbd0b84 | 721 | SCM_SYSERROR; |
2f3ed1ba JB |
722 | return SCM_UNSPECIFIED; |
723 | } | |
1bbd0b84 | 724 | #undef FUNC_NAME |
2f3ed1ba | 725 | |
f25f761d | 726 | #ifdef HAVE_MKDIR |
a1ec6916 | 727 | SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0, |
1bbd0b84 | 728 | (SCM path, SCM mode), |
d3818c29 MD |
729 | "Create a new directory named by @var{path}. If @var{mode} is omitted\n" |
730 | "then the permissions of the directory file are set using the current\n" | |
731 | "umask. Otherwise they are set to the decimal value specified with\n" | |
732 | "@var{mode}. The return value is unspecified.") | |
1bbd0b84 | 733 | #define FUNC_NAME s_scm_mkdir |
0f2d19dd | 734 | { |
0f2d19dd JB |
735 | int rv; |
736 | mode_t mask; | |
a6d9e5ab | 737 | SCM_VALIDATE_STRING (1, path); |
0f2d19dd JB |
738 | if (SCM_UNBNDP (mode)) |
739 | { | |
740 | mask = umask (0); | |
741 | umask (mask); | |
a6d9e5ab | 742 | SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), 0777 ^ mask)); |
0f2d19dd JB |
743 | } |
744 | else | |
745 | { | |
34d19ef6 | 746 | SCM_VALIDATE_INUM (2, mode); |
a6d9e5ab | 747 | SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), SCM_INUM (mode))); |
0f2d19dd | 748 | } |
02b754d3 | 749 | if (rv != 0) |
1bbd0b84 | 750 | SCM_SYSERROR; |
02b754d3 | 751 | return SCM_UNSPECIFIED; |
0f2d19dd | 752 | } |
1bbd0b84 | 753 | #undef FUNC_NAME |
f25f761d | 754 | #endif /* HAVE_MKDIR */ |
0f2d19dd | 755 | |
f25f761d | 756 | #ifdef HAVE_RMDIR |
a1ec6916 | 757 | SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0, |
1bbd0b84 | 758 | (SCM path), |
d3818c29 MD |
759 | "Remove the existing directory named by @var{path}. The directory must\n" |
760 | "be empty for this to succeed. The return value is unspecified.") | |
1bbd0b84 | 761 | #define FUNC_NAME s_scm_rmdir |
0f2d19dd | 762 | { |
0f2d19dd | 763 | int val; |
02b754d3 | 764 | |
a6d9e5ab | 765 | SCM_VALIDATE_STRING (1, path); |
a6d9e5ab | 766 | SCM_SYSCALL (val = rmdir (SCM_STRING_CHARS (path))); |
02b754d3 | 767 | if (val != 0) |
1bbd0b84 | 768 | SCM_SYSERROR; |
02b754d3 | 769 | return SCM_UNSPECIFIED; |
0f2d19dd | 770 | } |
1bbd0b84 | 771 | #undef FUNC_NAME |
f25f761d | 772 | #endif |
0f2d19dd JB |
773 | |
774 | \f | |
30ea841d | 775 | |
0f2d19dd JB |
776 | /* {Examining Directories} |
777 | */ | |
778 | ||
92c2555f | 779 | scm_t_bits scm_tc16_dir; |
0f2d19dd | 780 | |
30ea841d | 781 | |
a1ec6916 | 782 | SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0, |
1bbd0b84 | 783 | (SCM obj), |
1e6808ea MG |
784 | "Return a boolean indicating whether @var{object} is a directory\n" |
785 | "stream as returned by @code{opendir}.") | |
1bbd0b84 | 786 | #define FUNC_NAME s_scm_directory_stream_p |
77242ff9 | 787 | { |
7888309b | 788 | return scm_from_bool (SCM_DIRP (obj)); |
77242ff9 | 789 | } |
1bbd0b84 | 790 | #undef FUNC_NAME |
77242ff9 | 791 | |
30ea841d | 792 | |
a1ec6916 | 793 | SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0, |
1bbd0b84 | 794 | (SCM dirname), |
d3818c29 MD |
795 | "Open the directory specified by @var{path} and return a directory\n" |
796 | "stream.") | |
1bbd0b84 | 797 | #define FUNC_NAME s_scm_opendir |
0f2d19dd JB |
798 | { |
799 | DIR *ds; | |
a6d9e5ab | 800 | SCM_VALIDATE_STRING (1, dirname); |
a6d9e5ab | 801 | SCM_SYSCALL (ds = opendir (SCM_STRING_CHARS (dirname))); |
02b754d3 | 802 | if (ds == NULL) |
1bbd0b84 | 803 | SCM_SYSERROR; |
30ea841d | 804 | SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_DIR_FLAG_OPEN, ds); |
0f2d19dd | 805 | } |
1bbd0b84 | 806 | #undef FUNC_NAME |
0f2d19dd JB |
807 | |
808 | ||
9be808d8 KR |
809 | /* FIXME: The glibc manual has a portability note that readdir_r may not |
810 | null-terminate its return string. The circumstances outlined for this | |
811 | are not clear, nor is it clear what should be done about it. Lets worry | |
812 | about this if/when someone can figure it out. */ | |
813 | ||
a1ec6916 | 814 | SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0, |
1bbd0b84 | 815 | (SCM port), |
d3818c29 MD |
816 | "Return (as a string) the next directory entry from the directory stream\n" |
817 | "@var{stream}. If there is no remaining entry to be read then the\n" | |
818 | "end of file object is returned.") | |
1bbd0b84 | 819 | #define FUNC_NAME s_scm_readdir |
0f2d19dd JB |
820 | { |
821 | struct dirent *rdent; | |
30ea841d DH |
822 | |
823 | SCM_VALIDATE_DIR (1, port); | |
824 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 825 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 826 | |
0f2d19dd | 827 | errno = 0; |
9be808d8 KR |
828 | { |
829 | #if HAVE_READDIR_R | |
830 | /* On Solaris 2.7, struct dirent only contains "char d_name[1]" and one is | |
831 | expected to provide a buffer of "sizeof(struct dirent) + NAME_MAX" | |
832 | bytes. The glibc 2.3.2 manual notes this sort of thing too, and | |
833 | advises "offsetof(struct dirent,d_name) + NAME_MAX + 1". Either should | |
834 | suffice, we give both to be certain. */ | |
835 | union { | |
836 | struct dirent ent; | |
837 | char pad1 [sizeof(struct dirent) + NAME_MAX]; | |
838 | char pad2 [offsetof (struct dirent, d_name) + NAME_MAX + 1]; | |
839 | } u; | |
840 | SCM_SYSCALL (readdir_r ((DIR *) SCM_CELL_WORD_1 (port), &u.ent, &rdent)); | |
841 | #else | |
842 | SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CELL_WORD_1 (port))); | |
843 | #endif | |
844 | if (errno != 0) | |
845 | SCM_SYSERROR; | |
30ea841d | 846 | |
9be808d8 KR |
847 | return (rdent ? scm_mem2string (rdent->d_name, NAMLEN (rdent)) |
848 | : SCM_EOF_VAL); | |
849 | } | |
0f2d19dd | 850 | } |
1bbd0b84 | 851 | #undef FUNC_NAME |
0f2d19dd JB |
852 | |
853 | ||
a1ec6916 | 854 | SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0, |
1bbd0b84 | 855 | (SCM port), |
d3818c29 MD |
856 | "Reset the directory port @var{stream} so that the next call to\n" |
857 | "@code{readdir} will return the first directory entry.") | |
1bbd0b84 | 858 | #define FUNC_NAME s_scm_rewinddir |
0f2d19dd | 859 | { |
30ea841d DH |
860 | SCM_VALIDATE_DIR (1, port); |
861 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 862 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 863 | |
4260a7fc | 864 | rewinddir ((DIR *) SCM_CELL_WORD_1 (port)); |
30ea841d | 865 | |
0f2d19dd JB |
866 | return SCM_UNSPECIFIED; |
867 | } | |
1bbd0b84 | 868 | #undef FUNC_NAME |
0f2d19dd JB |
869 | |
870 | ||
a1ec6916 | 871 | SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0, |
1bbd0b84 | 872 | (SCM port), |
d3818c29 MD |
873 | "Close the directory stream @var{stream}.\n" |
874 | "The return value is unspecified.") | |
1bbd0b84 | 875 | #define FUNC_NAME s_scm_closedir |
0f2d19dd | 876 | { |
30ea841d | 877 | SCM_VALIDATE_DIR (1, port); |
02b754d3 | 878 | |
30ea841d | 879 | if (SCM_DIR_OPEN_P (port)) |
0f2d19dd | 880 | { |
30ea841d DH |
881 | int sts; |
882 | ||
883 | SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port))); | |
884 | if (sts != 0) | |
885 | SCM_SYSERROR; | |
886 | ||
887 | SCM_SET_CELL_WORD_0 (port, scm_tc16_dir); | |
0f2d19dd | 888 | } |
30ea841d | 889 | |
02b754d3 | 890 | return SCM_UNSPECIFIED; |
0f2d19dd | 891 | } |
1bbd0b84 | 892 | #undef FUNC_NAME |
0f2d19dd JB |
893 | |
894 | ||
0f2d19dd | 895 | static int |
e81d98ec | 896 | scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
0f2d19dd | 897 | { |
f8b16091 | 898 | scm_puts ("#<", port); |
30ea841d | 899 | if (!SCM_DIR_OPEN_P (exp)) |
f8b16091 | 900 | scm_puts ("closed: ", port); |
0d03da62 | 901 | scm_puts ("directory stream ", port); |
4260a7fc | 902 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); |
f8b16091 | 903 | scm_putc ('>', port); |
0f2d19dd JB |
904 | return 1; |
905 | } | |
906 | ||
1cc91f1b | 907 | |
1be6b49c | 908 | static size_t |
1bbd0b84 | 909 | scm_dir_free (SCM p) |
0f2d19dd | 910 | { |
30ea841d | 911 | if (SCM_DIR_OPEN_P (p)) |
4260a7fc | 912 | closedir ((DIR *) SCM_CELL_WORD_1 (p)); |
0f2d19dd JB |
913 | return 0; |
914 | } | |
915 | ||
0f2d19dd JB |
916 | \f |
917 | /* {Navigating Directories} | |
918 | */ | |
919 | ||
920 | ||
a1ec6916 | 921 | SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0, |
1bbd0b84 | 922 | (SCM str), |
d3818c29 MD |
923 | "Change the current working directory to @var{path}.\n" |
924 | "The return value is unspecified.") | |
1bbd0b84 | 925 | #define FUNC_NAME s_scm_chdir |
0f2d19dd JB |
926 | { |
927 | int ans; | |
02b754d3 | 928 | |
a6d9e5ab | 929 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 930 | SCM_SYSCALL (ans = chdir (SCM_STRING_CHARS (str))); |
02b754d3 | 931 | if (ans != 0) |
1bbd0b84 | 932 | SCM_SYSERROR; |
02b754d3 | 933 | return SCM_UNSPECIFIED; |
0f2d19dd | 934 | } |
1bbd0b84 | 935 | #undef FUNC_NAME |
0f2d19dd | 936 | |
f25f761d | 937 | #ifdef HAVE_GETCWD |
a1ec6916 | 938 | SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0, |
1bbd0b84 | 939 | (), |
1e6808ea | 940 | "Return the name of the current working directory.") |
1bbd0b84 | 941 | #define FUNC_NAME s_scm_getcwd |
0f2d19dd | 942 | { |
0f2d19dd | 943 | char *rv; |
1be6b49c | 944 | size_t size = 100; |
0f2d19dd JB |
945 | char *wd; |
946 | SCM result; | |
947 | ||
4c9419ac | 948 | wd = scm_malloc (size); |
0f2d19dd JB |
949 | while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE) |
950 | { | |
4c9419ac | 951 | free (wd); |
0f2d19dd | 952 | size *= 2; |
4c9419ac | 953 | wd = scm_malloc (size); |
0f2d19dd | 954 | } |
02b754d3 | 955 | if (rv == 0) |
11e1db06 KR |
956 | { |
957 | int save_errno = errno; | |
958 | free (wd); | |
959 | errno = save_errno; | |
960 | SCM_SYSERROR; | |
961 | } | |
36284627 | 962 | result = scm_mem2string (wd, strlen (wd)); |
4c9419ac | 963 | free (wd); |
0f2d19dd | 964 | return result; |
0f2d19dd | 965 | } |
1bbd0b84 | 966 | #undef FUNC_NAME |
f25f761d | 967 | #endif /* HAVE_GETCWD */ |
0f2d19dd JB |
968 | |
969 | \f | |
970 | ||
28d77376 GH |
971 | #ifdef HAVE_SELECT |
972 | ||
973 | /* check that element is a port or file descriptor. if it's a port | |
974 | and its buffer is ready for use, add it to the ports_ready list. | |
975 | otherwise add its file descriptor to *set. the type of list can be | |
976 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
977 | SCM_ARG3 for excepts. */ | |
cafc12ff | 978 | static int |
28d77376 | 979 | set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos) |
a48a89bc | 980 | { |
cafc12ff | 981 | int fd; |
d831b039 | 982 | |
28d77376 GH |
983 | if (SCM_INUMP (element)) |
984 | { | |
985 | fd = SCM_INUM (element); | |
986 | } | |
987 | else | |
988 | { | |
989 | int use_buf = 0; | |
990 | ||
991 | element = SCM_COERCE_OUTPORT (element); | |
992 | SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select"); | |
993 | if (pos == SCM_ARG1) | |
994 | { | |
995 | /* check whether port has buffered input. */ | |
92c2555f | 996 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
997 | |
998 | if (pt->read_pos < pt->read_end) | |
999 | use_buf = 1; | |
1000 | } | |
1001 | else if (pos == SCM_ARG2) | |
1002 | { | |
1003 | /* check whether port's output buffer has room. */ | |
92c2555f | 1004 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
1005 | |
1006 | /* > 1 since writing the last byte in the buffer causes flush. */ | |
1007 | if (pt->write_end - pt->write_pos > 1) | |
1008 | use_buf = 1; | |
1009 | } | |
1010 | fd = use_buf ? -1 : SCM_FPORT_FDES (element); | |
1011 | } | |
1012 | if (fd == -1) | |
1013 | *ports_ready = scm_cons (element, *ports_ready); | |
1014 | else | |
1015 | FD_SET (fd, set); | |
cafc12ff | 1016 | return fd; |
a48a89bc | 1017 | } |
1cc91f1b | 1018 | |
28d77376 GH |
1019 | /* check list_or_vec, a list or vector of ports or file descriptors, |
1020 | adding each member to either the ports_ready list (if it's a port | |
1021 | with a usable buffer) or to *set. the kind of list_or_vec can be | |
1022 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
1023 | SCM_ARG3 for excepts. */ | |
cafc12ff | 1024 | static int |
28d77376 | 1025 | fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos) |
0f2d19dd | 1026 | { |
28d77376 GH |
1027 | int max_fd = 0; |
1028 | ||
1029 | if (SCM_VECTORP (list_or_vec)) | |
0f2d19dd | 1030 | { |
9fd38a3d | 1031 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
34d19ef6 | 1032 | SCM const *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1033 | |
28d77376 | 1034 | while (--i >= 0) |
a48a89bc | 1035 | { |
28d77376 GH |
1036 | int fd = set_element (set, ports_ready, ve[i], pos); |
1037 | ||
cafc12ff MD |
1038 | if (fd > max_fd) |
1039 | max_fd = fd; | |
a48a89bc GH |
1040 | } |
1041 | } | |
1042 | else | |
1043 | { | |
c96d76b8 | 1044 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
a48a89bc | 1045 | { |
28d77376 GH |
1046 | int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos); |
1047 | ||
cafc12ff MD |
1048 | if (fd > max_fd) |
1049 | max_fd = fd; | |
28d77376 | 1050 | list_or_vec = SCM_CDR (list_or_vec); |
a48a89bc | 1051 | } |
0f2d19dd | 1052 | } |
cafc12ff MD |
1053 | |
1054 | return max_fd; | |
0f2d19dd JB |
1055 | } |
1056 | ||
28d77376 GH |
1057 | /* if element (a file descriptor or port) appears in *set, cons it to |
1058 | list. return list. */ | |
a48a89bc GH |
1059 | static SCM |
1060 | get_element (SELECT_TYPE *set, SCM element, SCM list) | |
1061 | { | |
28d77376 GH |
1062 | int fd; |
1063 | ||
1064 | if (SCM_INUMP (element)) | |
a48a89bc | 1065 | { |
28d77376 | 1066 | fd = SCM_INUM (element); |
a48a89bc | 1067 | } |
28d77376 | 1068 | else |
a48a89bc | 1069 | { |
28d77376 | 1070 | fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element)); |
a48a89bc | 1071 | } |
28d77376 GH |
1072 | if (FD_ISSET (fd, set)) |
1073 | list = scm_cons (element, list); | |
a48a89bc GH |
1074 | return list; |
1075 | } | |
1cc91f1b | 1076 | |
28d77376 GH |
1077 | /* construct component of scm_select return value. |
1078 | set: pointer to set of file descriptors found by select to be ready | |
1079 | ports_ready: ports ready due to buffering | |
1080 | list_or_vec: original list/vector handed to scm_select. | |
1081 | the return value is a list/vector of ready ports/file descriptors. | |
1082 | works by finding the objects in list which correspond to members of | |
1083 | *set and appending them to ports_ready. result is converted to a | |
1084 | vector if list_or_vec is a vector. */ | |
0f2d19dd | 1085 | static SCM |
28d77376 | 1086 | retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec) |
0f2d19dd | 1087 | { |
28d77376 | 1088 | SCM answer_list = ports_ready; |
a48a89bc | 1089 | |
28d77376 | 1090 | if (SCM_VECTORP (list_or_vec)) |
0f2d19dd | 1091 | { |
9fd38a3d | 1092 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
34d19ef6 | 1093 | SCM const *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1094 | |
28d77376 | 1095 | while (--i >= 0) |
0f2d19dd | 1096 | { |
28d77376 | 1097 | answer_list = get_element (set, ve[i], answer_list); |
0f2d19dd | 1098 | } |
a48a89bc GH |
1099 | return scm_vector (answer_list); |
1100 | } | |
1101 | else | |
1102 | { | |
28d77376 | 1103 | /* list_or_vec must be a list. */ |
c96d76b8 | 1104 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
0f2d19dd | 1105 | { |
28d77376 GH |
1106 | answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list); |
1107 | list_or_vec = SCM_CDR (list_or_vec); | |
0f2d19dd | 1108 | } |
a48a89bc | 1109 | return answer_list; |
0f2d19dd | 1110 | } |
0f2d19dd JB |
1111 | } |
1112 | ||
1bbd0b84 | 1113 | /* Static helper functions above refer to s_scm_select directly as s_select */ |
a1ec6916 | 1114 | SCM_DEFINE (scm_select, "select", 3, 2, 0, |
1bbd0b84 | 1115 | (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs), |
28d77376 | 1116 | "This procedure has a variety of uses: waiting for the ability\n" |
bb2c02f2 | 1117 | "to provide input, accept output, or the existence of\n" |
28d77376 GH |
1118 | "exceptional conditions on a collection of ports or file\n" |
1119 | "descriptors, or waiting for a timeout to occur.\n" | |
1120 | "It also returns if interrupted by a signal.\n\n" | |
1121 | "@var{reads}, @var{writes} and @var{excepts} can be lists or\n" | |
1122 | "vectors, with each member a port or a file descriptor.\n" | |
1123 | "The value returned is a list of three corresponding\n" | |
1124 | "lists or vectors containing only the members which meet the\n" | |
1125 | "specified requirement. The ability of port buffers to\n" | |
1126 | "provide input or accept output is taken into account.\n" | |
1127 | "Ordering of the input lists or vectors is not preserved.\n\n" | |
1128 | "The optional arguments @var{secs} and @var{usecs} specify the\n" | |
1129 | "timeout. Either @var{secs} can be specified alone, as\n" | |
1130 | "either an integer or a real number, or both @var{secs} and\n" | |
1131 | "@var{usecs} can be specified as integers, in which case\n" | |
1132 | "@var{usecs} is an additional timeout expressed in\n" | |
1133 | "microseconds. If @var{secs} is omitted or is @code{#f} then\n" | |
1134 | "select will wait for as long as it takes for one of the other\n" | |
1135 | "conditions to be satisfied.\n\n" | |
1136 | "The scsh version of @code{select} differs as follows:\n" | |
1137 | "Only vectors are accepted for the first three arguments.\n" | |
1138 | "The @var{usecs} argument is not supported.\n" | |
1139 | "Multiple values are returned instead of a list.\n" | |
1140 | "Duplicates in the input vectors appear only once in output.\n" | |
9401323e | 1141 | "An additional @code{select!} interface is provided.") |
1bbd0b84 | 1142 | #define FUNC_NAME s_scm_select |
0f2d19dd | 1143 | { |
0f2d19dd | 1144 | struct timeval timeout; |
28d77376 | 1145 | struct timeval * time_ptr; |
0f2d19dd JB |
1146 | SELECT_TYPE read_set; |
1147 | SELECT_TYPE write_set; | |
1148 | SELECT_TYPE except_set; | |
28d77376 GH |
1149 | int read_count; |
1150 | int write_count; | |
1151 | int except_count; | |
1152 | /* these lists accumulate ports which are ready due to buffering. | |
1153 | their file descriptors don't need to be added to the select sets. */ | |
1154 | SCM read_ports_ready = SCM_EOL; | |
1155 | SCM write_ports_ready = SCM_EOL; | |
1156 | int max_fd; | |
1157 | ||
1158 | if (SCM_VECTORP (reads)) | |
1159 | { | |
9fd38a3d | 1160 | read_count = SCM_VECTOR_LENGTH (reads); |
28d77376 GH |
1161 | } |
1162 | else | |
1163 | { | |
1164 | read_count = scm_ilength (reads); | |
1165 | SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME); | |
1166 | } | |
1167 | if (SCM_VECTORP (writes)) | |
1168 | { | |
9fd38a3d | 1169 | write_count = SCM_VECTOR_LENGTH (writes); |
28d77376 GH |
1170 | } |
1171 | else | |
1172 | { | |
1173 | write_count = scm_ilength (writes); | |
1174 | SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME); | |
1175 | } | |
1176 | if (SCM_VECTORP (excepts)) | |
1177 | { | |
9fd38a3d | 1178 | except_count = SCM_VECTOR_LENGTH (excepts); |
28d77376 GH |
1179 | } |
1180 | else | |
1181 | { | |
1182 | except_count = scm_ilength (excepts); | |
1183 | SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME); | |
1184 | } | |
0f2d19dd JB |
1185 | |
1186 | FD_ZERO (&read_set); | |
1187 | FD_ZERO (&write_set); | |
1188 | FD_ZERO (&except_set); | |
1189 | ||
28d77376 GH |
1190 | max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1); |
1191 | ||
1192 | { | |
1193 | int write_max = fill_select_type (&write_set, &write_ports_ready, | |
1194 | writes, SCM_ARG2); | |
1195 | int except_max = fill_select_type (&except_set, NULL, | |
1196 | excepts, SCM_ARG3); | |
1197 | ||
1198 | if (write_max > max_fd) | |
1199 | max_fd = write_max; | |
1200 | if (except_max > max_fd) | |
1201 | max_fd = except_max; | |
1202 | } | |
0f2d19dd | 1203 | |
ae1b098b GH |
1204 | /* if there's a port with a ready buffer, don't block, just |
1205 | check for ready file descriptors. */ | |
4260a7fc | 1206 | if (!SCM_NULLP (read_ports_ready) || !SCM_NULLP (write_ports_ready)) |
ae1b098b GH |
1207 | { |
1208 | timeout.tv_sec = 0; | |
1209 | timeout.tv_usec = 0; | |
1210 | time_ptr = &timeout; | |
1211 | } | |
7888309b | 1212 | else if (SCM_UNBNDP (secs) || scm_is_false (secs)) |
28d77376 | 1213 | time_ptr = 0; |
0f2d19dd JB |
1214 | else |
1215 | { | |
ae1b098b | 1216 | if (SCM_INUMP (secs)) |
a48a89bc GH |
1217 | { |
1218 | timeout.tv_sec = SCM_INUM (secs); | |
1219 | if (SCM_UNBNDP (usecs)) | |
1220 | timeout.tv_usec = 0; | |
1221 | else | |
1222 | { | |
34d19ef6 | 1223 | SCM_VALIDATE_INUM (5, usecs); |
a48a89bc GH |
1224 | timeout.tv_usec = SCM_INUM (usecs); |
1225 | } | |
1226 | } | |
0f2d19dd | 1227 | else |
a48a89bc | 1228 | { |
1bbd0b84 | 1229 | double fl = scm_num2dbl (secs, FUNC_NAME); |
a48a89bc GH |
1230 | |
1231 | if (!SCM_UNBNDP (usecs)) | |
c1bfcf60 | 1232 | SCM_WRONG_TYPE_ARG (4, secs); |
a48a89bc | 1233 | if (fl > LONG_MAX) |
c1bfcf60 | 1234 | SCM_OUT_OF_RANGE (4, secs); |
a48a89bc GH |
1235 | timeout.tv_sec = (long) fl; |
1236 | timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000); | |
1237 | } | |
28d77376 | 1238 | time_ptr = &timeout; |
0f2d19dd JB |
1239 | } |
1240 | ||
28d77376 | 1241 | { |
28d77376 GH |
1242 | int rv = scm_internal_select (max_fd + 1, |
1243 | &read_set, &write_set, &except_set, | |
1244 | time_ptr); | |
28d77376 GH |
1245 | if (rv < 0) |
1246 | SCM_SYSERROR; | |
1247 | } | |
1afff620 KN |
1248 | return scm_list_3 (retrieve_select_type (&read_set, read_ports_ready, reads), |
1249 | retrieve_select_type (&write_set, write_ports_ready, writes), | |
1250 | retrieve_select_type (&except_set, SCM_EOL, excepts)); | |
0f2d19dd | 1251 | } |
1bbd0b84 | 1252 | #undef FUNC_NAME |
f25f761d | 1253 | #endif /* HAVE_SELECT */ |
0f2d19dd JB |
1254 | |
1255 | \f | |
4c1feaa5 | 1256 | |
82893676 | 1257 | #ifdef HAVE_FCNTL |
af45e3b0 | 1258 | SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0, |
1bbd0b84 | 1259 | (SCM object, SCM cmd, SCM value), |
d3818c29 MD |
1260 | "Apply @var{command} to the specified file descriptor or the underlying\n" |
1261 | "file descriptor of the specified port. @var{value} is an optional\n" | |
1262 | "integer argument.\n\n" | |
1263 | "Values for @var{command} are:\n\n" | |
1264 | "@table @code\n" | |
1265 | "@item F_DUPFD\n" | |
1266 | "Duplicate a file descriptor\n" | |
1267 | "@item F_GETFD\n" | |
1268 | "Get flags associated with the file descriptor.\n" | |
1269 | "@item F_SETFD\n" | |
1270 | "Set flags associated with the file descriptor to @var{value}.\n" | |
1271 | "@item F_GETFL\n" | |
1272 | "Get flags associated with the open file.\n" | |
1273 | "@item F_SETFL\n" | |
1274 | "Set flags associated with the open file to @var{value}\n" | |
1275 | "@item F_GETOWN\n" | |
1276 | "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n" | |
1277 | "@item F_SETOWN\n" | |
1278 | "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n" | |
1279 | "@item FD_CLOEXEC\n" | |
55892d87 NJ |
1280 | "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n" |
1281 | "@code{F_SETFL}.\n" | |
a3c8b9fc | 1282 | "@end table") |
1bbd0b84 | 1283 | #define FUNC_NAME s_scm_fcntl |
4c1feaa5 JB |
1284 | { |
1285 | int rv; | |
6afcd3b2 GH |
1286 | int fdes; |
1287 | int ivalue; | |
4c1feaa5 | 1288 | |
78446828 MV |
1289 | object = SCM_COERCE_OUTPORT (object); |
1290 | ||
34d19ef6 | 1291 | SCM_VALIDATE_INUM (2, cmd); |
0c95b57d | 1292 | if (SCM_OPFPORTP (object)) |
77a76b64 | 1293 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1294 | else |
1295 | { | |
34d19ef6 | 1296 | SCM_VALIDATE_INUM (1, object); |
6afcd3b2 GH |
1297 | fdes = SCM_INUM (object); |
1298 | } | |
af45e3b0 DH |
1299 | |
1300 | if (SCM_UNBNDP (value)) { | |
6afcd3b2 | 1301 | ivalue = 0; |
af45e3b0 DH |
1302 | } else { |
1303 | SCM_VALIDATE_INUM_COPY (SCM_ARG3, value, ivalue); | |
1304 | } | |
1305 | ||
77a76b64 JB |
1306 | SCM_SYSCALL (rv = fcntl (fdes, SCM_INUM (cmd), ivalue)); |
1307 | if (rv == -1) | |
1bbd0b84 | 1308 | SCM_SYSERROR; |
4c1feaa5 JB |
1309 | return SCM_MAKINUM (rv); |
1310 | } | |
1bbd0b84 | 1311 | #undef FUNC_NAME |
82893676 | 1312 | #endif /* HAVE_FCNTL */ |
6afcd3b2 | 1313 | |
a1ec6916 | 1314 | SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0, |
1bbd0b84 | 1315 | (SCM object), |
d3818c29 MD |
1316 | "Copies any unwritten data for the specified output file descriptor to disk.\n" |
1317 | "If @var{port/fd} is a port, its buffer is flushed before the underlying\n" | |
1318 | "file descriptor is fsync'd.\n" | |
1319 | "The return value is unspecified.") | |
1bbd0b84 | 1320 | #define FUNC_NAME s_scm_fsync |
6afcd3b2 GH |
1321 | { |
1322 | int fdes; | |
1323 | ||
78446828 MV |
1324 | object = SCM_COERCE_OUTPORT (object); |
1325 | ||
0c95b57d | 1326 | if (SCM_OPFPORTP (object)) |
6afcd3b2 | 1327 | { |
affc96b5 | 1328 | scm_flush (object); |
77a76b64 | 1329 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1330 | } |
1331 | else | |
1332 | { | |
34d19ef6 | 1333 | SCM_VALIDATE_INUM (1, object); |
6afcd3b2 GH |
1334 | fdes = SCM_INUM (object); |
1335 | } | |
1336 | if (fsync (fdes) == -1) | |
1bbd0b84 | 1337 | SCM_SYSERROR; |
6afcd3b2 GH |
1338 | return SCM_UNSPECIFIED; |
1339 | } | |
1bbd0b84 | 1340 | #undef FUNC_NAME |
0f2d19dd | 1341 | |
f25f761d | 1342 | #ifdef HAVE_SYMLINK |
a1ec6916 | 1343 | SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0, |
1bbd0b84 | 1344 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
1345 | "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n" |
1346 | "@var{path-from}. The return value is unspecified.") | |
1bbd0b84 | 1347 | #define FUNC_NAME s_scm_symlink |
0f2d19dd | 1348 | { |
0f2d19dd | 1349 | int val; |
02b754d3 | 1350 | |
a6d9e5ab DH |
1351 | SCM_VALIDATE_STRING (1, oldpath); |
1352 | SCM_VALIDATE_STRING (2, newpath); | |
a6d9e5ab | 1353 | SCM_SYSCALL (val = symlink (SCM_STRING_CHARS (oldpath), SCM_STRING_CHARS (newpath))); |
02b754d3 | 1354 | if (val != 0) |
1bbd0b84 | 1355 | SCM_SYSERROR; |
02b754d3 | 1356 | return SCM_UNSPECIFIED; |
0f2d19dd | 1357 | } |
1bbd0b84 | 1358 | #undef FUNC_NAME |
f25f761d | 1359 | #endif /* HAVE_SYMLINK */ |
0f2d19dd | 1360 | |
f25f761d | 1361 | #ifdef HAVE_READLINK |
a1ec6916 | 1362 | SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0, |
1bbd0b84 | 1363 | (SCM path), |
1e6808ea MG |
1364 | "Return the value of the symbolic link named by @var{path} (a\n" |
1365 | "string), i.e., the file that the link points to.") | |
1bbd0b84 | 1366 | #define FUNC_NAME s_scm_readlink |
0f2d19dd | 1367 | { |
6a738a25 JB |
1368 | int rv; |
1369 | int size = 100; | |
0f2d19dd JB |
1370 | char *buf; |
1371 | SCM result; | |
a6d9e5ab | 1372 | SCM_VALIDATE_STRING (1, path); |
4c9419ac | 1373 | buf = scm_malloc (size); |
a6d9e5ab | 1374 | while ((rv = readlink (SCM_STRING_CHARS (path), buf, size)) == size) |
0f2d19dd | 1375 | { |
4c9419ac | 1376 | free (buf); |
0f2d19dd | 1377 | size *= 2; |
4c9419ac | 1378 | buf = scm_malloc (size); |
0f2d19dd | 1379 | } |
02b754d3 | 1380 | if (rv == -1) |
11e1db06 KR |
1381 | { |
1382 | int save_errno = errno; | |
1383 | free (buf); | |
1384 | errno = save_errno; | |
1385 | SCM_SYSERROR; | |
1386 | } | |
36284627 | 1387 | result = scm_mem2string (buf, rv); |
4c9419ac | 1388 | free (buf); |
0f2d19dd | 1389 | return result; |
0f2d19dd | 1390 | } |
1bbd0b84 | 1391 | #undef FUNC_NAME |
f25f761d | 1392 | #endif /* HAVE_READLINK */ |
0f2d19dd | 1393 | |
f25f761d | 1394 | #ifdef HAVE_LSTAT |
a1ec6916 | 1395 | SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0, |
1bbd0b84 | 1396 | (SCM str), |
d3818c29 | 1397 | "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n" |
9401323e | 1398 | "it will return information about a symbolic link itself, not the\n" |
d3818c29 | 1399 | "file it points to. @var{path} must be a string.") |
1bbd0b84 | 1400 | #define FUNC_NAME s_scm_lstat |
0f2d19dd | 1401 | { |
02b754d3 | 1402 | int rv; |
0f2d19dd | 1403 | struct stat stat_temp; |
02b754d3 | 1404 | |
a6d9e5ab | 1405 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 1406 | SCM_SYSCALL (rv = lstat (SCM_STRING_CHARS (str), &stat_temp)); |
02b754d3 | 1407 | if (rv != 0) |
3d8d56df GH |
1408 | { |
1409 | int en = errno; | |
1410 | ||
5d2d2ffc | 1411 | SCM_SYSERROR_MSG ("~A: ~S", |
1afff620 | 1412 | scm_list_2 (scm_makfrom0str (strerror (errno)), str), |
e0c08f17 | 1413 | en); |
3d8d56df | 1414 | } |
02b754d3 | 1415 | return scm_stat2scm(&stat_temp); |
0f2d19dd | 1416 | } |
1bbd0b84 | 1417 | #undef FUNC_NAME |
f25f761d | 1418 | #endif /* HAVE_LSTAT */ |
0f2d19dd | 1419 | |
a1ec6916 | 1420 | SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0, |
1bbd0b84 | 1421 | (SCM oldfile, SCM newfile), |
d3818c29 MD |
1422 | "Copy the file specified by @var{path-from} to @var{path-to}.\n" |
1423 | "The return value is unspecified.") | |
1bbd0b84 | 1424 | #define FUNC_NAME s_scm_copy_file |
0f2d19dd JB |
1425 | { |
1426 | int oldfd, newfd; | |
1427 | int n; | |
77a76b64 | 1428 | char buf[BUFSIZ]; |
0f2d19dd JB |
1429 | struct stat oldstat; |
1430 | ||
a6d9e5ab | 1431 | SCM_VALIDATE_STRING (1, oldfile); |
a6d9e5ab | 1432 | SCM_VALIDATE_STRING (2, newfile); |
a6d9e5ab | 1433 | if (stat (SCM_STRING_CHARS (oldfile), &oldstat) == -1) |
1bbd0b84 | 1434 | SCM_SYSERROR; |
a6d9e5ab | 1435 | oldfd = open (SCM_STRING_CHARS (oldfile), O_RDONLY); |
0f2d19dd | 1436 | if (oldfd == -1) |
1bbd0b84 | 1437 | SCM_SYSERROR; |
02b754d3 GH |
1438 | |
1439 | /* use POSIX flags instead of 07777?. */ | |
a6d9e5ab | 1440 | newfd = open (SCM_STRING_CHARS (newfile), O_WRONLY | O_CREAT | O_TRUNC, |
0f2d19dd JB |
1441 | oldstat.st_mode & 07777); |
1442 | if (newfd == -1) | |
1bbd0b84 | 1443 | SCM_SYSERROR; |
02b754d3 | 1444 | |
0f2d19dd JB |
1445 | while ((n = read (oldfd, buf, sizeof buf)) > 0) |
1446 | if (write (newfd, buf, n) != n) | |
1447 | { | |
1448 | close (oldfd); | |
1449 | close (newfd); | |
1bbd0b84 | 1450 | SCM_SYSERROR; |
0f2d19dd JB |
1451 | } |
1452 | close (oldfd); | |
1453 | if (close (newfd) == -1) | |
1bbd0b84 | 1454 | SCM_SYSERROR; |
02b754d3 | 1455 | return SCM_UNSPECIFIED; |
0f2d19dd | 1456 | } |
1bbd0b84 | 1457 | #undef FUNC_NAME |
0f2d19dd JB |
1458 | |
1459 | \f | |
6a738a25 JB |
1460 | /* Filename manipulation */ |
1461 | ||
1462 | SCM scm_dot_string; | |
1463 | ||
a1ec6916 | 1464 | SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0, |
1bbd0b84 | 1465 | (SCM filename), |
fa6a543f MG |
1466 | "Return the directory name component of the file name\n" |
1467 | "@var{filename}. If @var{filename} does not contain a directory\n" | |
1468 | "component, @code{.} is returned.") | |
1bbd0b84 | 1469 | #define FUNC_NAME s_scm_dirname |
6a738a25 JB |
1470 | { |
1471 | char *s; | |
9fd38a3d DH |
1472 | long int i; |
1473 | unsigned long int len; | |
1474 | ||
34d19ef6 | 1475 | SCM_VALIDATE_STRING (1, filename); |
9fd38a3d | 1476 | |
34f0f2b8 | 1477 | s = SCM_STRING_CHARS (filename); |
9fd38a3d DH |
1478 | len = SCM_STRING_LENGTH (filename); |
1479 | ||
6a738a25 | 1480 | i = len - 1; |
82893676 MG |
1481 | #ifdef __MINGW32__ |
1482 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; | |
e0c73a1c | 1483 | while (i >= 0 && (s[i] != '/' && s[i] != '\\')) --i; |
82893676 MG |
1484 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; |
1485 | #else | |
6a738a25 JB |
1486 | while (i >= 0 && s[i] == '/') --i; |
1487 | while (i >= 0 && s[i] != '/') --i; | |
1488 | while (i >= 0 && s[i] == '/') --i; | |
82893676 | 1489 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1490 | if (i < 0) |
1491 | { | |
82893676 MG |
1492 | #ifdef __MINGW32__ |
1493 | if (len > 0 && (s[0] == '/' || s[0] == '\\')) | |
1494 | #else | |
6a738a25 | 1495 | if (len > 0 && s[0] == '/') |
82893676 | 1496 | #endif /* ndef __MINGW32__ */ |
d1ca2c64 | 1497 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); |
6a738a25 JB |
1498 | else |
1499 | return scm_dot_string; | |
1500 | } | |
1501 | else | |
d1ca2c64 | 1502 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (i + 1)); |
6a738a25 | 1503 | } |
1bbd0b84 | 1504 | #undef FUNC_NAME |
6a738a25 | 1505 | |
a1ec6916 | 1506 | SCM_DEFINE (scm_basename, "basename", 1, 1, 0, |
1bbd0b84 | 1507 | (SCM filename, SCM suffix), |
fa6a543f MG |
1508 | "Return the base name of the file name @var{filename}. The\n" |
1509 | "base name is the file name without any directory components.\n" | |
bb2c02f2 | 1510 | "If @var{suffix} is provided, and is equal to the end of\n" |
fa6a543f | 1511 | "@var{basename}, it is removed also.") |
1bbd0b84 | 1512 | #define FUNC_NAME s_scm_basename |
6a738a25 JB |
1513 | { |
1514 | char *f, *s = 0; | |
1515 | int i, j, len, end; | |
9fd38a3d | 1516 | |
34d19ef6 | 1517 | SCM_VALIDATE_STRING (1, filename); |
34f0f2b8 | 1518 | f = SCM_STRING_CHARS (filename); |
9fd38a3d DH |
1519 | len = SCM_STRING_LENGTH (filename); |
1520 | ||
6a738a25 JB |
1521 | if (SCM_UNBNDP (suffix)) |
1522 | j = -1; | |
1523 | else | |
1524 | { | |
9fd38a3d | 1525 | SCM_VALIDATE_STRING (2, suffix); |
34f0f2b8 | 1526 | s = SCM_STRING_CHARS (suffix); |
9fd38a3d | 1527 | j = SCM_STRING_LENGTH (suffix) - 1; |
6a738a25 | 1528 | } |
6a738a25 | 1529 | i = len - 1; |
82893676 MG |
1530 | #ifdef __MINGW32__ |
1531 | while (i >= 0 && (f[i] == '/' || f[i] == '\\')) --i; | |
1532 | #else | |
6a738a25 | 1533 | while (i >= 0 && f[i] == '/') --i; |
82893676 | 1534 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1535 | end = i; |
1536 | while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j; | |
1537 | if (j == -1) | |
1538 | end = i; | |
82893676 | 1539 | #ifdef __MINGW32__ |
2e945bcc | 1540 | while (i >= 0 && f[i] != '/' && f[i] != '\\') --i; |
82893676 | 1541 | #else |
6a738a25 | 1542 | while (i >= 0 && f[i] != '/') --i; |
82893676 | 1543 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1544 | if (i == end) |
1545 | { | |
82893676 | 1546 | #ifdef __MINGW32__ |
2e945bcc | 1547 | if (len > 0 && (f[0] == '/' || f[0] == '\\')) |
82893676 | 1548 | #else |
6a738a25 | 1549 | if (len > 0 && f[0] == '/') |
82893676 | 1550 | #endif /* ndef __MINGW32__ */ |
d1ca2c64 | 1551 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); |
6a738a25 JB |
1552 | else |
1553 | return scm_dot_string; | |
1554 | } | |
1555 | else | |
d1ca2c64 | 1556 | return scm_substring (filename, SCM_MAKINUM (i + 1), SCM_MAKINUM (end + 1)); |
6a738a25 | 1557 | } |
1bbd0b84 | 1558 | #undef FUNC_NAME |
6a738a25 JB |
1559 | |
1560 | ||
1561 | ||
1562 | \f | |
1cc91f1b | 1563 | |
0f2d19dd JB |
1564 | void |
1565 | scm_init_filesys () | |
0f2d19dd | 1566 | { |
e841c3e0 KN |
1567 | scm_tc16_dir = scm_make_smob_type ("directory", 0); |
1568 | scm_set_smob_free (scm_tc16_dir, scm_dir_free); | |
1569 | scm_set_smob_print (scm_tc16_dir, scm_dir_print); | |
0f2d19dd | 1570 | |
a163dda9 MD |
1571 | scm_dot_string = scm_permanent_object (scm_makfrom0str (".")); |
1572 | ||
3d8d56df | 1573 | #ifdef O_RDONLY |
86d31dfe | 1574 | scm_c_define ("O_RDONLY", scm_long2num (O_RDONLY)); |
3d8d56df GH |
1575 | #endif |
1576 | #ifdef O_WRONLY | |
86d31dfe | 1577 | scm_c_define ("O_WRONLY", scm_long2num (O_WRONLY)); |
3d8d56df GH |
1578 | #endif |
1579 | #ifdef O_RDWR | |
86d31dfe | 1580 | scm_c_define ("O_RDWR", scm_long2num (O_RDWR)); |
3d8d56df GH |
1581 | #endif |
1582 | #ifdef O_CREAT | |
86d31dfe | 1583 | scm_c_define ("O_CREAT", scm_long2num (O_CREAT)); |
3d8d56df GH |
1584 | #endif |
1585 | #ifdef O_EXCL | |
86d31dfe | 1586 | scm_c_define ("O_EXCL", scm_long2num (O_EXCL)); |
3d8d56df GH |
1587 | #endif |
1588 | #ifdef O_NOCTTY | |
86d31dfe | 1589 | scm_c_define ("O_NOCTTY", scm_long2num (O_NOCTTY)); |
3d8d56df GH |
1590 | #endif |
1591 | #ifdef O_TRUNC | |
86d31dfe | 1592 | scm_c_define ("O_TRUNC", scm_long2num (O_TRUNC)); |
3d8d56df GH |
1593 | #endif |
1594 | #ifdef O_APPEND | |
86d31dfe | 1595 | scm_c_define ("O_APPEND", scm_long2num (O_APPEND)); |
3d8d56df | 1596 | #endif |
6afcd3b2 | 1597 | #ifdef O_NONBLOCK |
86d31dfe | 1598 | scm_c_define ("O_NONBLOCK", scm_long2num (O_NONBLOCK)); |
3d8d56df GH |
1599 | #endif |
1600 | #ifdef O_NDELAY | |
86d31dfe | 1601 | scm_c_define ("O_NDELAY", scm_long2num (O_NDELAY)); |
3d8d56df GH |
1602 | #endif |
1603 | #ifdef O_SYNC | |
86d31dfe | 1604 | scm_c_define ("O_SYNC", scm_long2num (O_SYNC)); |
3d8d56df GH |
1605 | #endif |
1606 | ||
4c1feaa5 | 1607 | #ifdef F_DUPFD |
86d31dfe | 1608 | scm_c_define ("F_DUPFD", scm_long2num (F_DUPFD)); |
4c1feaa5 JB |
1609 | #endif |
1610 | #ifdef F_GETFD | |
86d31dfe | 1611 | scm_c_define ("F_GETFD", scm_long2num (F_GETFD)); |
4c1feaa5 JB |
1612 | #endif |
1613 | #ifdef F_SETFD | |
86d31dfe | 1614 | scm_c_define ("F_SETFD", scm_long2num (F_SETFD)); |
4c1feaa5 JB |
1615 | #endif |
1616 | #ifdef F_GETFL | |
86d31dfe | 1617 | scm_c_define ("F_GETFL", scm_long2num (F_GETFL)); |
4c1feaa5 JB |
1618 | #endif |
1619 | #ifdef F_SETFL | |
86d31dfe | 1620 | scm_c_define ("F_SETFL", scm_long2num (F_SETFL)); |
4c1feaa5 JB |
1621 | #endif |
1622 | #ifdef F_GETOWN | |
86d31dfe | 1623 | scm_c_define ("F_GETOWN", scm_long2num (F_GETOWN)); |
4c1feaa5 JB |
1624 | #endif |
1625 | #ifdef F_SETOWN | |
86d31dfe | 1626 | scm_c_define ("F_SETOWN", scm_long2num (F_SETOWN)); |
4c1feaa5 JB |
1627 | #endif |
1628 | #ifdef FD_CLOEXEC | |
86d31dfe | 1629 | scm_c_define ("FD_CLOEXEC", scm_long2num (FD_CLOEXEC)); |
bd9e24b3 | 1630 | #endif |
3d8d56df | 1631 | |
a0599745 | 1632 | #include "libguile/filesys.x" |
0f2d19dd | 1633 | } |
89e00824 ML |
1634 | |
1635 | /* | |
1636 | Local Variables: | |
1637 | c-file-style: "gnu" | |
1638 | End: | |
1639 | */ |