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