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 |
464ee095 KR |
20 | |
21 | /* See stime.c for comments on why _POSIX_C_SOURCE is not always defined. */ | |
00fbf1e0 | 22 | #define _GNU_SOURCE /* ask glibc for everything */ |
464ee095 KR |
23 | #ifdef __hpux |
24 | #define _POSIX_C_SOURCE 199506L /* for readdir_r */ | |
edea856c | 25 | #endif |
6d484a0b | 26 | |
83079454 RB |
27 | #if HAVE_CONFIG_H |
28 | # include <config.h> | |
29 | #endif | |
30 | ||
3d8d56df | 31 | #include <stdio.h> |
e6e2e95a MD |
32 | #include <errno.h> |
33 | ||
a0599745 MD |
34 | #include "libguile/_scm.h" |
35 | #include "libguile/smob.h" | |
36 | #include "libguile/feature.h" | |
37 | #include "libguile/fports.h" | |
38 | #include "libguile/iselect.h" | |
39 | #include "libguile/strings.h" | |
40 | #include "libguile/vectors.h" | |
c96d76b8 | 41 | #include "libguile/lang.h" |
1299a0f1 | 42 | #include "libguile/dynwind.h" |
0f2d19dd | 43 | |
a0599745 MD |
44 | #include "libguile/validate.h" |
45 | #include "libguile/filesys.h" | |
def804a3 | 46 | |
0f2d19dd | 47 | \f |
def804a3 JB |
48 | #ifdef HAVE_IO_H |
49 | #include <io.h> | |
50 | #endif | |
51 | ||
e0c73a1c MV |
52 | #ifdef HAVE_DIRECT_H |
53 | #include <direct.h> | |
54 | #endif | |
55 | ||
0f2d19dd JB |
56 | #ifdef TIME_WITH_SYS_TIME |
57 | # include <sys/time.h> | |
58 | # include <time.h> | |
59 | #else | |
60 | # if HAVE_SYS_TIME_H | |
61 | # include <sys/time.h> | |
62 | # else | |
63 | # include <time.h> | |
64 | # endif | |
65 | #endif | |
66 | ||
67 | #ifdef HAVE_UNISTD_H | |
68 | #include <unistd.h> | |
69 | #endif | |
70 | ||
3594582b | 71 | #ifdef LIBC_H_WITH_UNISTD_H |
1f9e2226 JB |
72 | #include <libc.h> |
73 | #endif | |
74 | ||
0f2d19dd JB |
75 | #ifdef HAVE_SYS_SELECT_H |
76 | #include <sys/select.h> | |
77 | #endif | |
78 | ||
1f9e2226 JB |
79 | #ifdef HAVE_STRING_H |
80 | #include <string.h> | |
81 | #endif | |
82 | ||
8cc71382 | 83 | #include <sys/types.h> |
0f2d19dd JB |
84 | #include <sys/stat.h> |
85 | #include <fcntl.h> | |
86 | ||
82893676 | 87 | #ifdef HAVE_PWD_H |
0f2d19dd | 88 | #include <pwd.h> |
82893676 | 89 | #endif |
0f2d19dd JB |
90 | |
91 | ||
e0c73a1c MV |
92 | #if defined (__MINGW32__) || defined (_MSC_VER) || defined (__BORLANDC__) |
93 | # include "win32-dirent.h" | |
94 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
95 | #elif HAVE_DIRENT_H | |
0f2d19dd JB |
96 | # include <dirent.h> |
97 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
98 | #else | |
99 | # define dirent direct | |
100 | # define NAMLEN(dirent) (dirent)->d_namlen | |
101 | # if HAVE_SYS_NDIR_H | |
102 | # include <sys/ndir.h> | |
103 | # endif | |
104 | # if HAVE_SYS_DIR_H | |
105 | # include <sys/dir.h> | |
106 | # endif | |
107 | # if HAVE_NDIR_H | |
108 | # include <ndir.h> | |
109 | # endif | |
110 | #endif | |
111 | ||
d7b8a21a JB |
112 | /* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */ |
113 | #if defined (S_IFSOCK) && ! defined (S_ISSOCK) | |
114 | #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) | |
115 | #endif | |
82893676 MG |
116 | |
117 | /* The MinGW gcc does not define the S_ISSOCK macro. Any other native Windows | |
118 | compiler like BorlandC or MSVC has none of these macros defined. */ | |
119 | #ifdef __MINGW32__ | |
8f99e3f3 SJ |
120 | |
121 | # ifdef _S_IFIFO | |
122 | # undef _S_IFIFO | |
123 | # endif | |
124 | # ifdef _S_IFCHR | |
125 | # undef _S_IFCHR | |
126 | # endif | |
127 | # ifdef _S_IFBLK | |
128 | # undef _S_IFBLK | |
129 | # endif | |
130 | # ifdef _S_IFDIR | |
131 | # undef _S_IFDIR | |
132 | # endif | |
133 | # ifdef _S_IFREG | |
134 | # undef _S_IFREG | |
135 | # endif | |
136 | # ifdef _S_IFSOCK | |
137 | # undef _S_IFSOCK | |
138 | # endif | |
139 | ||
140 | # define _S_IFIFO 0x1000 /* FIFO */ | |
141 | # define _S_IFCHR 0x2000 /* Character */ | |
142 | # define _S_IFBLK 0x3000 /* Block */ | |
143 | # define _S_IFDIR 0x4000 /* Directory */ | |
144 | # define _S_IFREG 0x8000 /* Regular */ | |
145 | # define _S_IFSOCK 0xC000 /* Socket */ | |
146 | ||
147 | # ifdef S_ISBLK | |
148 | # undef S_ISBLK | |
149 | # endif | |
150 | # ifdef S_ISFIFO | |
151 | # undef S_ISFIFO | |
152 | # endif | |
153 | # ifdef S_ISCHR | |
154 | # undef S_ISCHR | |
155 | # endif | |
156 | # ifdef S_ISDIR | |
157 | # undef S_ISDIR | |
158 | # endif | |
159 | # ifdef S_ISREG | |
160 | # undef S_ISREG | |
161 | # endif | |
162 | # ifdef S_ISSOCK | |
163 | # undef S_ISSOCK | |
164 | # endif | |
165 | ||
166 | # define S_ISBLK(mode) (((mode) & _S_IFMT) == _S_IFBLK) | |
82893676 | 167 | # define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO) |
8f99e3f3 SJ |
168 | # define S_ISCHR(mode) (((mode) & _S_IFMT) == _S_IFCHR) |
169 | # define S_ISDIR(mode) (((mode) & _S_IFMT) == _S_IFDIR) | |
170 | # define S_ISREG(mode) (((mode) & _S_IFMT) == _S_IFREG) | |
171 | # define S_ISSOCK(mode) (((mode) & _S_IFMT) == _S_IFSOCK) | |
172 | ||
173 | #endif /* __MINGW32__ */ | |
82893676 MG |
174 | |
175 | /* Some more definitions for the native Windows port. */ | |
176 | #ifdef __MINGW32__ | |
177 | # define mkdir(path, mode) mkdir (path) | |
178 | # define fsync(fd) _commit (fd) | |
179 | # define fchmod(fd, mode) (-1) | |
180 | #endif /* __MINGW32__ */ | |
0f2d19dd JB |
181 | \f |
182 | ||
1299a0f1 MV |
183 | /* Two helper macros for an often used pattern */ |
184 | ||
185 | #define STRING_SYSCALL(str,cstr,code) \ | |
186 | do { \ | |
187 | int eno; \ | |
188 | char *cstr = scm_to_locale_string (str); \ | |
189 | SCM_SYSCALL (code); \ | |
190 | eno = errno; free (cstr); errno = eno; \ | |
191 | } while (0) | |
192 | ||
193 | #define STRING2_SYSCALL(str1,cstr1,str2,cstr2,code) \ | |
194 | do { \ | |
195 | int eno; \ | |
196 | char *cstr1, *cstr2; \ | |
197 | scm_frame_begin (0); \ | |
198 | cstr1 = scm_to_locale_string (str1); \ | |
199 | scm_frame_free (cstr1); \ | |
200 | cstr2 = scm_to_locale_string (str2); \ | |
201 | scm_frame_free (cstr2); \ | |
202 | SCM_SYSCALL (code); \ | |
203 | eno = errno; scm_frame_end (); errno = eno; \ | |
204 | } while (0) | |
0f2d19dd JB |
205 | |
206 | \f | |
207 | ||
208 | /* {Permissions} | |
209 | */ | |
210 | ||
82893676 | 211 | #ifdef HAVE_CHOWN |
a1ec6916 | 212 | SCM_DEFINE (scm_chown, "chown", 3, 0, 0, |
1bbd0b84 | 213 | (SCM object, SCM owner, SCM group), |
d831b039 GH |
214 | "Change the ownership and group of the file referred to by @var{object} to\n" |
215 | "the integer values @var{owner} and @var{group}. @var{object} can be\n" | |
216 | "a string containing a file name or, if the platform\n" | |
217 | "supports fchown, a port or integer file descriptor\n" | |
218 | "which is open on the file. The return value\n" | |
d3818c29 | 219 | "is unspecified.\n\n" |
d831b039 | 220 | "If @var{object} is a symbolic link, either the\n" |
d3818c29 MD |
221 | "ownership of the link or the ownership of the referenced file will be\n" |
222 | "changed depending on the operating system (lchown is\n" | |
223 | "unsupported at present). If @var{owner} or @var{group} is specified\n" | |
224 | "as @code{-1}, then that ID is not changed.") | |
1bbd0b84 | 225 | #define FUNC_NAME s_scm_chown |
0f2d19dd | 226 | { |
6afcd3b2 | 227 | int rv; |
02b754d3 | 228 | |
78446828 MV |
229 | object = SCM_COERCE_OUTPORT (object); |
230 | ||
d831b039 | 231 | #ifdef HAVE_FCHOWN |
a55c2b68 | 232 | if (scm_is_integer (object) || (SCM_OPFPORTP (object))) |
6afcd3b2 | 233 | { |
a55c2b68 MV |
234 | int fdes = (SCM_OPFPORTP (object)? |
235 | SCM_FPORT_FDES (object) : scm_to_int (object)); | |
d831b039 | 236 | |
a55c2b68 | 237 | SCM_SYSCALL (rv = fchown (fdes, scm_to_int (owner), scm_to_int (group))); |
6afcd3b2 GH |
238 | } |
239 | else | |
d831b039 | 240 | #endif |
6afcd3b2 | 241 | { |
1299a0f1 MV |
242 | STRING_SYSCALL (object, c_object, |
243 | rv = chown (c_object, | |
244 | scm_to_int (owner), scm_to_int (group))); | |
6afcd3b2 GH |
245 | } |
246 | if (rv == -1) | |
1bbd0b84 | 247 | SCM_SYSERROR; |
02b754d3 | 248 | return SCM_UNSPECIFIED; |
0f2d19dd | 249 | } |
1bbd0b84 | 250 | #undef FUNC_NAME |
82893676 | 251 | #endif /* HAVE_CHOWN */ |
0f2d19dd JB |
252 | |
253 | ||
a1ec6916 | 254 | SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0, |
1bbd0b84 | 255 | (SCM object, SCM mode), |
d3818c29 MD |
256 | "Changes the permissions of the file referred to by @var{obj}.\n" |
257 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
258 | "descriptor which is open on a file (in which case @code{fchmod} is used\n" | |
259 | "as the underlying system call).\n" | |
260 | "@var{mode} specifies\n" | |
261 | "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n" | |
262 | "The return value is unspecified.") | |
1bbd0b84 | 263 | #define FUNC_NAME s_scm_chmod |
0f2d19dd JB |
264 | { |
265 | int rv; | |
6afcd3b2 GH |
266 | int fdes; |
267 | ||
78446828 MV |
268 | object = SCM_COERCE_OUTPORT (object); |
269 | ||
a55c2b68 | 270 | if (scm_is_integer (object) || SCM_OPFPORTP (object)) |
89958ad0 | 271 | { |
a55c2b68 MV |
272 | if (scm_is_integer (object)) |
273 | fdes = scm_to_int (object); | |
6afcd3b2 | 274 | else |
77a76b64 | 275 | fdes = SCM_FPORT_FDES (object); |
a55c2b68 | 276 | SCM_SYSCALL (rv = fchmod (fdes, scm_to_int (mode))); |
89958ad0 | 277 | } |
0f2d19dd JB |
278 | else |
279 | { | |
1299a0f1 MV |
280 | STRING_SYSCALL (object, c_object, |
281 | rv = chmod (c_object, scm_to_int (mode))); | |
0f2d19dd | 282 | } |
6afcd3b2 | 283 | if (rv == -1) |
1bbd0b84 | 284 | SCM_SYSERROR; |
02b754d3 | 285 | return SCM_UNSPECIFIED; |
0f2d19dd | 286 | } |
1bbd0b84 | 287 | #undef FUNC_NAME |
0f2d19dd | 288 | |
a1ec6916 | 289 | SCM_DEFINE (scm_umask, "umask", 0, 1, 0, |
1bbd0b84 | 290 | (SCM mode), |
bb2c02f2 | 291 | "If @var{mode} is omitted, returns a decimal number representing the current\n" |
d3818c29 MD |
292 | "file creation mask. Otherwise the file creation mask is set to\n" |
293 | "@var{mode} and the previous value is returned.\n\n" | |
294 | "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.") | |
1bbd0b84 | 295 | #define FUNC_NAME s_scm_umask |
0f2d19dd JB |
296 | { |
297 | mode_t mask; | |
298 | if (SCM_UNBNDP (mode)) | |
299 | { | |
300 | mask = umask (0); | |
301 | umask (mask); | |
302 | } | |
303 | else | |
304 | { | |
a55c2b68 | 305 | mask = umask (scm_to_uint (mode)); |
0f2d19dd | 306 | } |
a55c2b68 | 307 | return scm_from_uint (mask); |
0f2d19dd | 308 | } |
1bbd0b84 | 309 | #undef FUNC_NAME |
0f2d19dd JB |
310 | |
311 | \f | |
0f2d19dd | 312 | |
a1ec6916 | 313 | SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0, |
1bbd0b84 | 314 | (SCM path, SCM flags, SCM mode), |
1e6808ea MG |
315 | "Similar to @code{open} but return a file descriptor instead of\n" |
316 | "a port.") | |
1bbd0b84 | 317 | #define FUNC_NAME s_scm_open_fdes |
0f2d19dd JB |
318 | { |
319 | int fd; | |
3d8d56df | 320 | int iflags; |
6afcd3b2 | 321 | int imode; |
0f2d19dd | 322 | |
1be6b49c ML |
323 | iflags = SCM_NUM2INT (2, flags); |
324 | imode = SCM_NUM2INT_DEF (3, mode, 0666); | |
1299a0f1 | 325 | STRING_SYSCALL (path, c_path, fd = open (c_path, iflags, imode)); |
3d8d56df | 326 | if (fd == -1) |
1bbd0b84 | 327 | SCM_SYSERROR; |
e11e83f3 | 328 | return scm_from_int (fd); |
6afcd3b2 | 329 | } |
1bbd0b84 | 330 | #undef FUNC_NAME |
6afcd3b2 | 331 | |
a1ec6916 | 332 | SCM_DEFINE (scm_open, "open", 2, 1, 0, |
1bbd0b84 | 333 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
334 | "Open the file named by @var{path} for reading and/or writing.\n" |
335 | "@var{flags} is an integer specifying how the file should be opened.\n" | |
336 | "@var{mode} is an integer specifying the permission bits of the file, if\n" | |
337 | "it needs to be created, before the umask is applied. The default is 666\n" | |
338 | "(Unix itself has no default).\n\n" | |
339 | "@var{flags} can be constructed by combining variables using @code{logior}.\n" | |
340 | "Basic flags are:\n\n" | |
341 | "@defvar O_RDONLY\n" | |
342 | "Open the file read-only.\n" | |
343 | "@end defvar\n" | |
344 | "@defvar O_WRONLY\n" | |
9401323e | 345 | "Open the file write-only.\n" |
d3818c29 MD |
346 | "@end defvar\n" |
347 | "@defvar O_RDWR\n" | |
348 | "Open the file read/write.\n" | |
349 | "@end defvar\n" | |
350 | "@defvar O_APPEND\n" | |
351 | "Append to the file instead of truncating.\n" | |
352 | "@end defvar\n" | |
353 | "@defvar O_CREAT\n" | |
354 | "Create the file if it does not already exist.\n" | |
355 | "@end defvar\n\n" | |
356 | "See the Unix documentation of the @code{open} system call\n" | |
357 | "for additional flags.") | |
1bbd0b84 | 358 | #define FUNC_NAME s_scm_open |
6afcd3b2 GH |
359 | { |
360 | SCM newpt; | |
361 | char *port_mode; | |
362 | int fd; | |
6afcd3b2 GH |
363 | int iflags; |
364 | ||
e11e83f3 | 365 | fd = scm_to_int (scm_open_fdes (path, flags, mode)); |
1be6b49c | 366 | iflags = SCM_NUM2INT (2, flags); |
3d8d56df | 367 | if (iflags & O_RDWR) |
77a76b64 JB |
368 | { |
369 | if (iflags & O_APPEND) | |
370 | port_mode = "a+"; | |
371 | else if (iflags & O_CREAT) | |
372 | port_mode = "w+"; | |
373 | else | |
374 | port_mode = "r+"; | |
375 | } | |
3d8d56df | 376 | else { |
77a76b64 JB |
377 | if (iflags & O_APPEND) |
378 | port_mode = "a"; | |
379 | else if (iflags & O_WRONLY) | |
3d8d56df GH |
380 | port_mode = "w"; |
381 | else | |
382 | port_mode = "r"; | |
383 | } | |
77a76b64 | 384 | newpt = scm_fdes_to_port (fd, port_mode, path); |
3d8d56df | 385 | return newpt; |
0f2d19dd | 386 | } |
1bbd0b84 | 387 | #undef FUNC_NAME |
0f2d19dd | 388 | |
a1ec6916 | 389 | SCM_DEFINE (scm_close, "close", 1, 0, 0, |
1bbd0b84 | 390 | (SCM fd_or_port), |
8f85c0c6 | 391 | "Similar to close-port (@pxref{Closing, close-port}),\n" |
d3818c29 MD |
392 | "but also works on file descriptors. A side\n" |
393 | "effect of closing a file descriptor is that any ports using that file\n" | |
394 | "descriptor are moved to a different file descriptor and have\n" | |
395 | "their revealed counts set to zero.") | |
1bbd0b84 | 396 | #define FUNC_NAME s_scm_close |
eadd48de GH |
397 | { |
398 | int rv; | |
399 | int fd; | |
400 | ||
78446828 MV |
401 | fd_or_port = SCM_COERCE_OUTPORT (fd_or_port); |
402 | ||
0c95b57d | 403 | if (SCM_PORTP (fd_or_port)) |
eadd48de | 404 | return scm_close_port (fd_or_port); |
a55c2b68 | 405 | fd = scm_to_int (fd_or_port); |
eadd48de | 406 | scm_evict_ports (fd); /* see scsh manual. */ |
a9488d12 | 407 | SCM_SYSCALL (rv = close (fd)); |
eadd48de GH |
408 | /* following scsh, closing an already closed file descriptor is |
409 | not an error. */ | |
410 | if (rv < 0 && errno != EBADF) | |
1bbd0b84 | 411 | SCM_SYSERROR; |
7888309b | 412 | return scm_from_bool (rv >= 0); |
eadd48de | 413 | } |
1bbd0b84 | 414 | #undef FUNC_NAME |
eadd48de | 415 | |
c2ca4493 GH |
416 | SCM_DEFINE (scm_close_fdes, "close-fdes", 1, 0, 0, |
417 | (SCM fd), | |
418 | "A simple wrapper for the @code{close} system call.\n" | |
419 | "Close file descriptor @var{fd}, which must be an integer.\n" | |
420 | "Unlike close (@pxref{Ports and File Descriptors, close}),\n" | |
421 | "the file descriptor will be closed even if a port is using it.\n" | |
422 | "The return value is unspecified.") | |
423 | #define FUNC_NAME s_scm_close_fdes | |
424 | { | |
425 | int c_fd; | |
426 | int rv; | |
427 | ||
a55c2b68 | 428 | c_fd = scm_to_int (fd); |
c2ca4493 GH |
429 | SCM_SYSCALL (rv = close (c_fd)); |
430 | if (rv < 0) | |
431 | SCM_SYSERROR; | |
432 | return SCM_UNSPECIFIED; | |
433 | } | |
434 | #undef FUNC_NAME | |
435 | ||
0f2d19dd JB |
436 | \f |
437 | /* {Files} | |
438 | */ | |
1cc91f1b | 439 | |
ae5253c5 GH |
440 | SCM_SYMBOL (scm_sym_regular, "regular"); |
441 | SCM_SYMBOL (scm_sym_directory, "directory"); | |
f326ecf3 | 442 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 443 | SCM_SYMBOL (scm_sym_symlink, "symlink"); |
f326ecf3 | 444 | #endif |
ae5253c5 GH |
445 | SCM_SYMBOL (scm_sym_block_special, "block-special"); |
446 | SCM_SYMBOL (scm_sym_char_special, "char-special"); | |
447 | SCM_SYMBOL (scm_sym_fifo, "fifo"); | |
448 | SCM_SYMBOL (scm_sym_sock, "socket"); | |
449 | SCM_SYMBOL (scm_sym_unknown, "unknown"); | |
450 | ||
0f2d19dd | 451 | static SCM |
1bbd0b84 | 452 | scm_stat2scm (struct stat *stat_temp) |
0f2d19dd | 453 | { |
00ffa0e7 | 454 | SCM ans = scm_c_make_vector (15, SCM_UNSPECIFIED); |
ae5253c5 | 455 | |
b9bd8526 MV |
456 | SCM_VECTOR_SET(ans, 0, scm_from_ulong (stat_temp->st_dev)); |
457 | SCM_VECTOR_SET(ans, 1, scm_from_ulong (stat_temp->st_ino)); | |
458 | SCM_VECTOR_SET(ans, 2, scm_from_ulong (stat_temp->st_mode)); | |
459 | SCM_VECTOR_SET(ans, 3, scm_from_ulong (stat_temp->st_nlink)); | |
460 | SCM_VECTOR_SET(ans, 4, scm_from_ulong (stat_temp->st_uid)); | |
461 | SCM_VECTOR_SET(ans, 5, scm_from_ulong (stat_temp->st_gid)); | |
1fd85bc5 | 462 | #ifdef HAVE_STRUCT_STAT_ST_RDEV |
b9bd8526 | 463 | SCM_VECTOR_SET(ans, 6, scm_from_ulong (stat_temp->st_rdev)); |
0f2d19dd | 464 | #else |
34d19ef6 | 465 | SCM_VECTOR_SET(ans, 6, SCM_BOOL_F); |
0f2d19dd | 466 | #endif |
b9bd8526 MV |
467 | SCM_VECTOR_SET(ans, 7, scm_from_ulong (stat_temp->st_size)); |
468 | SCM_VECTOR_SET(ans, 8, scm_from_ulong (stat_temp->st_atime)); | |
469 | SCM_VECTOR_SET(ans, 9, scm_from_ulong (stat_temp->st_mtime)); | |
470 | SCM_VECTOR_SET(ans, 10, scm_from_ulong (stat_temp->st_ctime)); | |
1fd85bc5 | 471 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
b9bd8526 | 472 | SCM_VECTOR_SET(ans, 11, scm_from_ulong (stat_temp->st_blksize)); |
0f2d19dd | 473 | #else |
b9bd8526 | 474 | SCM_VECTOR_SET(ans, 11, scm_from_ulong (4096L)); |
0f2d19dd | 475 | #endif |
1fd85bc5 | 476 | #ifdef HAVE_STRUCT_STAT_ST_BLOCKS |
b9bd8526 | 477 | SCM_VECTOR_SET(ans, 12, scm_from_ulong (stat_temp->st_blocks)); |
0f2d19dd | 478 | #else |
34d19ef6 | 479 | SCM_VECTOR_SET(ans, 12, SCM_BOOL_F); |
0f2d19dd | 480 | #endif |
ae5253c5 GH |
481 | { |
482 | int mode = stat_temp->st_mode; | |
483 | ||
484 | if (S_ISREG (mode)) | |
34d19ef6 | 485 | SCM_VECTOR_SET(ans, 13, scm_sym_regular); |
ae5253c5 | 486 | else if (S_ISDIR (mode)) |
34d19ef6 | 487 | SCM_VECTOR_SET(ans, 13, scm_sym_directory); |
f326ecf3 | 488 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 489 | else if (S_ISLNK (mode)) |
34d19ef6 | 490 | SCM_VECTOR_SET(ans, 13, scm_sym_symlink); |
f326ecf3 | 491 | #endif |
ae5253c5 | 492 | else if (S_ISBLK (mode)) |
34d19ef6 | 493 | SCM_VECTOR_SET(ans, 13, scm_sym_block_special); |
ae5253c5 | 494 | else if (S_ISCHR (mode)) |
34d19ef6 | 495 | SCM_VECTOR_SET(ans, 13, scm_sym_char_special); |
ae5253c5 | 496 | else if (S_ISFIFO (mode)) |
34d19ef6 | 497 | SCM_VECTOR_SET(ans, 13, scm_sym_fifo); |
e655d034 | 498 | #ifdef S_ISSOCK |
ae5253c5 | 499 | else if (S_ISSOCK (mode)) |
34d19ef6 | 500 | SCM_VECTOR_SET(ans, 13, scm_sym_sock); |
e655d034 | 501 | #endif |
ae5253c5 | 502 | else |
34d19ef6 | 503 | SCM_VECTOR_SET(ans, 13, scm_sym_unknown); |
ae5253c5 | 504 | |
e11e83f3 | 505 | SCM_VECTOR_SET(ans, 14, scm_from_int ((~S_IFMT) & mode)); |
ae5253c5 GH |
506 | |
507 | /* the layout of the bits in ve[14] is intended to be portable. | |
508 | If there are systems that don't follow the usual convention, | |
509 | the following could be used: | |
510 | ||
511 | tmp = 0; | |
512 | if (S_ISUID & mode) tmp += 1; | |
513 | tmp <<= 1; | |
514 | if (S_IRGRP & mode) tmp += 1; | |
515 | tmp <<= 1; | |
516 | if (S_ISVTX & mode) tmp += 1; | |
517 | tmp <<= 1; | |
518 | if (S_IRUSR & mode) tmp += 1; | |
519 | tmp <<= 1; | |
520 | if (S_IWUSR & mode) tmp += 1; | |
521 | tmp <<= 1; | |
522 | if (S_IXUSR & mode) tmp += 1; | |
523 | tmp <<= 1; | |
524 | if (S_IWGRP & mode) tmp += 1; | |
525 | tmp <<= 1; | |
526 | if (S_IXGRP & mode) tmp += 1; | |
527 | tmp <<= 1; | |
528 | if (S_IROTH & mode) tmp += 1; | |
529 | tmp <<= 1; | |
530 | if (S_IWOTH & mode) tmp += 1; | |
531 | tmp <<= 1; | |
532 | if (S_IXOTH & mode) tmp += 1; | |
533 | ||
e11e83f3 | 534 | SCM_VECTOR_SET(ans, 14, scm_from_int (tmp)); |
ae5253c5 GH |
535 | |
536 | */ | |
537 | } | |
0f2d19dd JB |
538 | |
539 | return ans; | |
540 | } | |
541 | ||
e0c73a1c MV |
542 | #ifdef __MINGW32__ |
543 | /* | |
544 | * Try getting the appropiate stat buffer for a given file descriptor | |
545 | * under Windows. It differentiates between file, pipe and socket | |
546 | * descriptors. | |
547 | */ | |
548 | static int fstat_Win32 (int fdes, struct stat *buf) | |
549 | { | |
550 | int error, optlen = sizeof (int); | |
551 | ||
552 | memset (buf, 0, sizeof (struct stat)); | |
553 | ||
554 | /* Is this a socket ? */ | |
555 | if (getsockopt (fdes, SOL_SOCKET, SO_ERROR, (void *) &error, &optlen) >= 0) | |
556 | { | |
557 | buf->st_mode = _S_IFSOCK | _S_IREAD | _S_IWRITE | _S_IEXEC; | |
558 | buf->st_nlink = 1; | |
559 | buf->st_atime = buf->st_ctime = buf->st_mtime = time (NULL); | |
560 | return 0; | |
561 | } | |
562 | /* Maybe a regular file or pipe ? */ | |
563 | return fstat (fdes, buf); | |
564 | } | |
565 | #endif /* __MINGW32__ */ | |
566 | ||
a1ec6916 | 567 | SCM_DEFINE (scm_stat, "stat", 1, 0, 0, |
1bbd0b84 | 568 | (SCM object), |
1e6808ea MG |
569 | "Return an object containing various information about the file\n" |
570 | "determined by @var{obj}. @var{obj} can be a string containing\n" | |
571 | "a file name or a port or integer file descriptor which is open\n" | |
572 | "on a file (in which case @code{fstat} is used as the underlying\n" | |
573 | "system call).\n" | |
574 | "\n" | |
575 | "The object returned by @code{stat} can be passed as a single\n" | |
576 | "parameter to the following procedures, all of which return\n" | |
577 | "integers:\n" | |
578 | "\n" | |
d3818c29 MD |
579 | "@table @code\n" |
580 | "@item stat:dev\n" | |
581 | "The device containing the file.\n" | |
582 | "@item stat:ino\n" | |
1e6808ea MG |
583 | "The file serial number, which distinguishes this file from all\n" |
584 | "other files on the same device.\n" | |
d3818c29 | 585 | "@item stat:mode\n" |
1e6808ea MG |
586 | "The mode of the file. This includes file type information and\n" |
587 | "the file permission bits. See @code{stat:type} and\n" | |
588 | "@code{stat:perms} below.\n" | |
d3818c29 MD |
589 | "@item stat:nlink\n" |
590 | "The number of hard links to the file.\n" | |
591 | "@item stat:uid\n" | |
592 | "The user ID of the file's owner.\n" | |
593 | "@item stat:gid\n" | |
594 | "The group ID of the file.\n" | |
595 | "@item stat:rdev\n" | |
596 | "Device ID; this entry is defined only for character or block\n" | |
597 | "special files.\n" | |
598 | "@item stat:size\n" | |
599 | "The size of a regular file in bytes.\n" | |
600 | "@item stat:atime\n" | |
601 | "The last access time for the file.\n" | |
602 | "@item stat:mtime\n" | |
603 | "The last modification time for the file.\n" | |
604 | "@item stat:ctime\n" | |
605 | "The last modification time for the attributes of the file.\n" | |
606 | "@item stat:blksize\n" | |
1e6808ea MG |
607 | "The optimal block size for reading or writing the file, in\n" |
608 | "bytes.\n" | |
d3818c29 | 609 | "@item stat:blocks\n" |
1e6808ea MG |
610 | "The amount of disk space that the file occupies measured in\n" |
611 | "units of 512 byte blocks.\n" | |
612 | "@end table\n" | |
613 | "\n" | |
d3818c29 | 614 | "In addition, the following procedures return the information\n" |
1e6808ea MG |
615 | "from stat:mode in a more convenient form:\n" |
616 | "\n" | |
d3818c29 MD |
617 | "@table @code\n" |
618 | "@item stat:type\n" | |
619 | "A symbol representing the type of file. Possible values are\n" | |
1e6808ea MG |
620 | "regular, directory, symlink, block-special, char-special, fifo,\n" |
621 | "socket and unknown\n" | |
d3818c29 MD |
622 | "@item stat:perms\n" |
623 | "An integer representing the access permission bits.\n" | |
624 | "@end table") | |
1bbd0b84 | 625 | #define FUNC_NAME s_scm_stat |
0f2d19dd | 626 | { |
6afcd3b2 GH |
627 | int rv; |
628 | int fdes; | |
0f2d19dd JB |
629 | struct stat stat_temp; |
630 | ||
e11e83f3 | 631 | if (scm_is_integer (object)) |
36284627 | 632 | { |
e0c73a1c | 633 | #ifdef __MINGW32__ |
e11e83f3 | 634 | SCM_SYSCALL (rv = fstat_Win32 (scm_to_int (object), &stat_temp)); |
e0c73a1c | 635 | #else |
e11e83f3 | 636 | SCM_SYSCALL (rv = fstat (scm_to_int (object), &stat_temp)); |
e0c73a1c | 637 | #endif |
36284627 | 638 | } |
7f9994d9 | 639 | else if (scm_is_string (object)) |
36284627 | 640 | { |
7f9994d9 | 641 | char *file = scm_to_locale_string (object); |
e0c73a1c | 642 | #ifdef __MINGW32__ |
7f9994d9 | 643 | char *p; |
e0c73a1c MV |
644 | p = file + strlen (file) - 1; |
645 | while (p > file && (*p == '/' || *p == '\\')) | |
646 | *p-- = '\0'; | |
7f9994d9 | 647 | #endif |
e0c73a1c MV |
648 | SCM_SYSCALL (rv = stat (file, &stat_temp)); |
649 | free (file); | |
36284627 | 650 | } |
1ea47048 | 651 | else |
0f2d19dd | 652 | { |
36284627 DH |
653 | object = SCM_COERCE_OUTPORT (object); |
654 | SCM_VALIDATE_OPFPORT (1, object); | |
655 | fdes = SCM_FPORT_FDES (object); | |
e0c73a1c MV |
656 | #ifdef __MINGW32__ |
657 | SCM_SYSCALL (rv = fstat_Win32 (fdes, &stat_temp)); | |
658 | #else | |
36284627 | 659 | SCM_SYSCALL (rv = fstat (fdes, &stat_temp)); |
e0c73a1c | 660 | #endif |
6afcd3b2 | 661 | } |
36284627 | 662 | |
6afcd3b2 | 663 | if (rv == -1) |
3d8d56df GH |
664 | { |
665 | int en = errno; | |
666 | ||
5d2d2ffc | 667 | SCM_SYSERROR_MSG ("~A: ~S", |
3572cd6b | 668 | scm_list_2 (scm_strerror (scm_from_int (en)), |
1afff620 | 669 | object), |
e0c08f17 | 670 | en); |
3d8d56df | 671 | } |
02b754d3 | 672 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 673 | } |
1bbd0b84 | 674 | #undef FUNC_NAME |
0f2d19dd | 675 | |
0f2d19dd JB |
676 | \f |
677 | /* {Modifying Directories} | |
678 | */ | |
679 | ||
82893676 | 680 | #ifdef HAVE_LINK |
a1ec6916 | 681 | SCM_DEFINE (scm_link, "link", 2, 0, 0, |
1bbd0b84 | 682 | (SCM oldpath, SCM newpath), |
6d36532c GH |
683 | "Creates a new name @var{newpath} in the file system for the\n" |
684 | "file named by @var{oldpath}. If @var{oldpath} is a symbolic\n" | |
685 | "link, the link may or may not be followed depending on the\n" | |
686 | "system.") | |
1bbd0b84 | 687 | #define FUNC_NAME s_scm_link |
0f2d19dd JB |
688 | { |
689 | int val; | |
02b754d3 | 690 | |
1299a0f1 MV |
691 | STRING2_SYSCALL (oldpath, c_oldpath, |
692 | newpath, c_newpath, | |
693 | val = link (c_oldpath, c_newpath)); | |
02b754d3 | 694 | if (val != 0) |
1bbd0b84 | 695 | SCM_SYSERROR; |
02b754d3 | 696 | return SCM_UNSPECIFIED; |
0f2d19dd | 697 | } |
1bbd0b84 | 698 | #undef FUNC_NAME |
82893676 | 699 | #endif /* HAVE_LINK */ |
0f2d19dd | 700 | |
1299a0f1 MV |
701 | #ifdef HAVE_RENAME |
702 | #define my_rename rename | |
703 | #else | |
704 | static int | |
705 | my_rename (const char *oldname, const char *newname) | |
706 | { | |
707 | int rv; | |
0f2d19dd | 708 | |
1299a0f1 MV |
709 | SCM_SYSCALL (rv = link (oldname, newname)); |
710 | if (rv == 0) | |
711 | { | |
712 | SCM_SYSCALL (rv = unlink (oldname)); | |
713 | if (rv != 0) | |
714 | /* unlink failed. remove new name */ | |
715 | SCM_SYSCALL (unlink (newname)); | |
716 | } | |
717 | return rv; | |
718 | } | |
719 | #endif | |
0f2d19dd | 720 | |
a1ec6916 | 721 | SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, |
1bbd0b84 | 722 | (SCM oldname, SCM newname), |
6d36532c | 723 | "Renames the file specified by @var{oldname} to @var{newname}.\n" |
d3818c29 | 724 | "The return value is unspecified.") |
1bbd0b84 | 725 | #define FUNC_NAME s_scm_rename |
0f2d19dd JB |
726 | { |
727 | int rv; | |
1299a0f1 MV |
728 | |
729 | STRING2_SYSCALL (oldname, c_oldname, | |
730 | newname, c_newname, | |
731 | rv = my_rename (c_oldname, c_newname)); | |
02b754d3 | 732 | if (rv != 0) |
1bbd0b84 | 733 | SCM_SYSERROR; |
02b754d3 | 734 | return SCM_UNSPECIFIED; |
0f2d19dd | 735 | } |
1bbd0b84 | 736 | #undef FUNC_NAME |
0f2d19dd JB |
737 | |
738 | ||
3b3b36dd | 739 | SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, |
1bbd0b84 | 740 | (SCM str), |
d3818c29 | 741 | "Deletes (or \"unlinks\") the file specified by @var{path}.") |
1bbd0b84 | 742 | #define FUNC_NAME s_scm_delete_file |
2f3ed1ba JB |
743 | { |
744 | int ans; | |
1299a0f1 | 745 | STRING_SYSCALL (str, c_str, ans = unlink (c_str)); |
2f3ed1ba | 746 | if (ans != 0) |
1bbd0b84 | 747 | SCM_SYSERROR; |
2f3ed1ba JB |
748 | return SCM_UNSPECIFIED; |
749 | } | |
1bbd0b84 | 750 | #undef FUNC_NAME |
2f3ed1ba | 751 | |
f25f761d | 752 | #ifdef HAVE_MKDIR |
a1ec6916 | 753 | SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0, |
1bbd0b84 | 754 | (SCM path, SCM mode), |
d3818c29 MD |
755 | "Create a new directory named by @var{path}. If @var{mode} is omitted\n" |
756 | "then the permissions of the directory file are set using the current\n" | |
757 | "umask. Otherwise they are set to the decimal value specified with\n" | |
758 | "@var{mode}. The return value is unspecified.") | |
1bbd0b84 | 759 | #define FUNC_NAME s_scm_mkdir |
0f2d19dd | 760 | { |
0f2d19dd JB |
761 | int rv; |
762 | mode_t mask; | |
1299a0f1 | 763 | |
0f2d19dd JB |
764 | if (SCM_UNBNDP (mode)) |
765 | { | |
766 | mask = umask (0); | |
767 | umask (mask); | |
1299a0f1 | 768 | STRING_SYSCALL (path, c_path, rv = mkdir (c_path, 0777 ^ mask)); |
0f2d19dd JB |
769 | } |
770 | else | |
771 | { | |
1299a0f1 | 772 | STRING_SYSCALL (path, c_path, rv = mkdir (c_path, scm_to_uint (mode))); |
0f2d19dd | 773 | } |
02b754d3 | 774 | if (rv != 0) |
1bbd0b84 | 775 | SCM_SYSERROR; |
02b754d3 | 776 | return SCM_UNSPECIFIED; |
0f2d19dd | 777 | } |
1bbd0b84 | 778 | #undef FUNC_NAME |
f25f761d | 779 | #endif /* HAVE_MKDIR */ |
0f2d19dd | 780 | |
f25f761d | 781 | #ifdef HAVE_RMDIR |
a1ec6916 | 782 | SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0, |
1bbd0b84 | 783 | (SCM path), |
d3818c29 MD |
784 | "Remove the existing directory named by @var{path}. The directory must\n" |
785 | "be empty for this to succeed. The return value is unspecified.") | |
1bbd0b84 | 786 | #define FUNC_NAME s_scm_rmdir |
0f2d19dd | 787 | { |
0f2d19dd | 788 | int val; |
02b754d3 | 789 | |
1299a0f1 | 790 | STRING_SYSCALL (path, c_path, val = rmdir (c_path)); |
02b754d3 | 791 | if (val != 0) |
1bbd0b84 | 792 | SCM_SYSERROR; |
02b754d3 | 793 | return SCM_UNSPECIFIED; |
0f2d19dd | 794 | } |
1bbd0b84 | 795 | #undef FUNC_NAME |
f25f761d | 796 | #endif |
0f2d19dd JB |
797 | |
798 | \f | |
30ea841d | 799 | |
0f2d19dd JB |
800 | /* {Examining Directories} |
801 | */ | |
802 | ||
92c2555f | 803 | scm_t_bits scm_tc16_dir; |
0f2d19dd | 804 | |
30ea841d | 805 | |
a1ec6916 | 806 | SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0, |
1bbd0b84 | 807 | (SCM obj), |
1e6808ea MG |
808 | "Return a boolean indicating whether @var{object} is a directory\n" |
809 | "stream as returned by @code{opendir}.") | |
1bbd0b84 | 810 | #define FUNC_NAME s_scm_directory_stream_p |
77242ff9 | 811 | { |
7888309b | 812 | return scm_from_bool (SCM_DIRP (obj)); |
77242ff9 | 813 | } |
1bbd0b84 | 814 | #undef FUNC_NAME |
77242ff9 | 815 | |
30ea841d | 816 | |
a1ec6916 | 817 | SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0, |
1bbd0b84 | 818 | (SCM dirname), |
d3818c29 MD |
819 | "Open the directory specified by @var{path} and return a directory\n" |
820 | "stream.") | |
1bbd0b84 | 821 | #define FUNC_NAME s_scm_opendir |
0f2d19dd JB |
822 | { |
823 | DIR *ds; | |
1299a0f1 | 824 | STRING_SYSCALL (dirname, c_dirname, ds = opendir (c_dirname)); |
02b754d3 | 825 | if (ds == NULL) |
1bbd0b84 | 826 | SCM_SYSERROR; |
30ea841d | 827 | SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_DIR_FLAG_OPEN, ds); |
0f2d19dd | 828 | } |
1bbd0b84 | 829 | #undef FUNC_NAME |
0f2d19dd JB |
830 | |
831 | ||
9be808d8 KR |
832 | /* FIXME: The glibc manual has a portability note that readdir_r may not |
833 | null-terminate its return string. The circumstances outlined for this | |
834 | are not clear, nor is it clear what should be done about it. Lets worry | |
835 | about this if/when someone can figure it out. */ | |
836 | ||
a1ec6916 | 837 | SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0, |
1bbd0b84 | 838 | (SCM port), |
d3818c29 MD |
839 | "Return (as a string) the next directory entry from the directory stream\n" |
840 | "@var{stream}. If there is no remaining entry to be read then the\n" | |
841 | "end of file object is returned.") | |
1bbd0b84 | 842 | #define FUNC_NAME s_scm_readdir |
0f2d19dd JB |
843 | { |
844 | struct dirent *rdent; | |
30ea841d DH |
845 | |
846 | SCM_VALIDATE_DIR (1, port); | |
847 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 848 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 849 | |
0f2d19dd | 850 | errno = 0; |
9be808d8 KR |
851 | { |
852 | #if HAVE_READDIR_R | |
853 | /* On Solaris 2.7, struct dirent only contains "char d_name[1]" and one is | |
854 | expected to provide a buffer of "sizeof(struct dirent) + NAME_MAX" | |
855 | bytes. The glibc 2.3.2 manual notes this sort of thing too, and | |
856 | advises "offsetof(struct dirent,d_name) + NAME_MAX + 1". Either should | |
857 | suffice, we give both to be certain. */ | |
858 | union { | |
859 | struct dirent ent; | |
860 | char pad1 [sizeof(struct dirent) + NAME_MAX]; | |
861 | char pad2 [offsetof (struct dirent, d_name) + NAME_MAX + 1]; | |
862 | } u; | |
863 | SCM_SYSCALL (readdir_r ((DIR *) SCM_CELL_WORD_1 (port), &u.ent, &rdent)); | |
864 | #else | |
865 | SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CELL_WORD_1 (port))); | |
866 | #endif | |
867 | if (errno != 0) | |
868 | SCM_SYSERROR; | |
30ea841d | 869 | |
cc95e00a | 870 | return (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent)) |
9be808d8 KR |
871 | : SCM_EOF_VAL); |
872 | } | |
0f2d19dd | 873 | } |
1bbd0b84 | 874 | #undef FUNC_NAME |
0f2d19dd JB |
875 | |
876 | ||
a1ec6916 | 877 | SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0, |
1bbd0b84 | 878 | (SCM port), |
d3818c29 MD |
879 | "Reset the directory port @var{stream} so that the next call to\n" |
880 | "@code{readdir} will return the first directory entry.") | |
1bbd0b84 | 881 | #define FUNC_NAME s_scm_rewinddir |
0f2d19dd | 882 | { |
30ea841d DH |
883 | SCM_VALIDATE_DIR (1, port); |
884 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 885 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 886 | |
4260a7fc | 887 | rewinddir ((DIR *) SCM_CELL_WORD_1 (port)); |
30ea841d | 888 | |
0f2d19dd JB |
889 | return SCM_UNSPECIFIED; |
890 | } | |
1bbd0b84 | 891 | #undef FUNC_NAME |
0f2d19dd JB |
892 | |
893 | ||
a1ec6916 | 894 | SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0, |
1bbd0b84 | 895 | (SCM port), |
d3818c29 MD |
896 | "Close the directory stream @var{stream}.\n" |
897 | "The return value is unspecified.") | |
1bbd0b84 | 898 | #define FUNC_NAME s_scm_closedir |
0f2d19dd | 899 | { |
30ea841d | 900 | SCM_VALIDATE_DIR (1, port); |
02b754d3 | 901 | |
30ea841d | 902 | if (SCM_DIR_OPEN_P (port)) |
0f2d19dd | 903 | { |
30ea841d DH |
904 | int sts; |
905 | ||
906 | SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port))); | |
907 | if (sts != 0) | |
908 | SCM_SYSERROR; | |
909 | ||
910 | SCM_SET_CELL_WORD_0 (port, scm_tc16_dir); | |
0f2d19dd | 911 | } |
30ea841d | 912 | |
02b754d3 | 913 | return SCM_UNSPECIFIED; |
0f2d19dd | 914 | } |
1bbd0b84 | 915 | #undef FUNC_NAME |
0f2d19dd JB |
916 | |
917 | ||
0f2d19dd | 918 | static int |
e81d98ec | 919 | scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
0f2d19dd | 920 | { |
f8b16091 | 921 | scm_puts ("#<", port); |
30ea841d | 922 | if (!SCM_DIR_OPEN_P (exp)) |
f8b16091 | 923 | scm_puts ("closed: ", port); |
0d03da62 | 924 | scm_puts ("directory stream ", port); |
4260a7fc | 925 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); |
f8b16091 | 926 | scm_putc ('>', port); |
0f2d19dd JB |
927 | return 1; |
928 | } | |
929 | ||
1cc91f1b | 930 | |
1be6b49c | 931 | static size_t |
1bbd0b84 | 932 | scm_dir_free (SCM p) |
0f2d19dd | 933 | { |
30ea841d | 934 | if (SCM_DIR_OPEN_P (p)) |
4260a7fc | 935 | closedir ((DIR *) SCM_CELL_WORD_1 (p)); |
0f2d19dd JB |
936 | return 0; |
937 | } | |
938 | ||
0f2d19dd JB |
939 | \f |
940 | /* {Navigating Directories} | |
941 | */ | |
942 | ||
943 | ||
a1ec6916 | 944 | SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0, |
1bbd0b84 | 945 | (SCM str), |
d3818c29 MD |
946 | "Change the current working directory to @var{path}.\n" |
947 | "The return value is unspecified.") | |
1bbd0b84 | 948 | #define FUNC_NAME s_scm_chdir |
0f2d19dd JB |
949 | { |
950 | int ans; | |
02b754d3 | 951 | |
1299a0f1 | 952 | STRING_SYSCALL (str, c_str, ans = chdir (c_str)); |
02b754d3 | 953 | if (ans != 0) |
1bbd0b84 | 954 | SCM_SYSERROR; |
02b754d3 | 955 | return SCM_UNSPECIFIED; |
0f2d19dd | 956 | } |
1bbd0b84 | 957 | #undef FUNC_NAME |
0f2d19dd | 958 | |
f25f761d | 959 | #ifdef HAVE_GETCWD |
a1ec6916 | 960 | SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0, |
1bbd0b84 | 961 | (), |
1e6808ea | 962 | "Return the name of the current working directory.") |
1bbd0b84 | 963 | #define FUNC_NAME s_scm_getcwd |
0f2d19dd | 964 | { |
0f2d19dd | 965 | char *rv; |
1be6b49c | 966 | size_t size = 100; |
0f2d19dd JB |
967 | char *wd; |
968 | SCM result; | |
969 | ||
4c9419ac | 970 | wd = scm_malloc (size); |
0f2d19dd JB |
971 | while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE) |
972 | { | |
4c9419ac | 973 | free (wd); |
0f2d19dd | 974 | size *= 2; |
4c9419ac | 975 | wd = scm_malloc (size); |
0f2d19dd | 976 | } |
02b754d3 | 977 | if (rv == 0) |
11e1db06 KR |
978 | { |
979 | int save_errno = errno; | |
980 | free (wd); | |
981 | errno = save_errno; | |
982 | SCM_SYSERROR; | |
983 | } | |
cc95e00a | 984 | result = scm_from_locale_stringn (wd, strlen (wd)); |
4c9419ac | 985 | free (wd); |
0f2d19dd | 986 | return result; |
0f2d19dd | 987 | } |
1bbd0b84 | 988 | #undef FUNC_NAME |
f25f761d | 989 | #endif /* HAVE_GETCWD */ |
0f2d19dd JB |
990 | |
991 | \f | |
992 | ||
28d77376 GH |
993 | #ifdef HAVE_SELECT |
994 | ||
995 | /* check that element is a port or file descriptor. if it's a port | |
996 | and its buffer is ready for use, add it to the ports_ready list. | |
997 | otherwise add its file descriptor to *set. the type of list can be | |
998 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
999 | SCM_ARG3 for excepts. */ | |
cafc12ff | 1000 | static int |
28d77376 | 1001 | set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos) |
a48a89bc | 1002 | { |
cafc12ff | 1003 | int fd; |
d831b039 | 1004 | |
e11e83f3 | 1005 | if (scm_is_integer (element)) |
28d77376 | 1006 | { |
e11e83f3 | 1007 | fd = scm_to_int (element); |
28d77376 GH |
1008 | } |
1009 | else | |
1010 | { | |
1011 | int use_buf = 0; | |
1012 | ||
1013 | element = SCM_COERCE_OUTPORT (element); | |
1014 | SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select"); | |
1015 | if (pos == SCM_ARG1) | |
1016 | { | |
1017 | /* check whether port has buffered input. */ | |
92c2555f | 1018 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
1019 | |
1020 | if (pt->read_pos < pt->read_end) | |
1021 | use_buf = 1; | |
1022 | } | |
1023 | else if (pos == SCM_ARG2) | |
1024 | { | |
1025 | /* check whether port's output buffer has room. */ | |
92c2555f | 1026 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
1027 | |
1028 | /* > 1 since writing the last byte in the buffer causes flush. */ | |
1029 | if (pt->write_end - pt->write_pos > 1) | |
1030 | use_buf = 1; | |
1031 | } | |
1032 | fd = use_buf ? -1 : SCM_FPORT_FDES (element); | |
1033 | } | |
1034 | if (fd == -1) | |
1035 | *ports_ready = scm_cons (element, *ports_ready); | |
1036 | else | |
1037 | FD_SET (fd, set); | |
cafc12ff | 1038 | return fd; |
a48a89bc | 1039 | } |
1cc91f1b | 1040 | |
28d77376 GH |
1041 | /* check list_or_vec, a list or vector of ports or file descriptors, |
1042 | adding each member to either the ports_ready list (if it's a port | |
1043 | with a usable buffer) or to *set. the kind of list_or_vec can be | |
1044 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
1045 | SCM_ARG3 for excepts. */ | |
cafc12ff | 1046 | static int |
28d77376 | 1047 | fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos) |
0f2d19dd | 1048 | { |
28d77376 GH |
1049 | int max_fd = 0; |
1050 | ||
1051 | if (SCM_VECTORP (list_or_vec)) | |
0f2d19dd | 1052 | { |
9fd38a3d | 1053 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
34d19ef6 | 1054 | SCM const *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1055 | |
28d77376 | 1056 | while (--i >= 0) |
a48a89bc | 1057 | { |
28d77376 GH |
1058 | int fd = set_element (set, ports_ready, ve[i], pos); |
1059 | ||
cafc12ff MD |
1060 | if (fd > max_fd) |
1061 | max_fd = fd; | |
a48a89bc GH |
1062 | } |
1063 | } | |
1064 | else | |
1065 | { | |
c96d76b8 | 1066 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
a48a89bc | 1067 | { |
28d77376 GH |
1068 | int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos); |
1069 | ||
cafc12ff MD |
1070 | if (fd > max_fd) |
1071 | max_fd = fd; | |
28d77376 | 1072 | list_or_vec = SCM_CDR (list_or_vec); |
a48a89bc | 1073 | } |
0f2d19dd | 1074 | } |
cafc12ff MD |
1075 | |
1076 | return max_fd; | |
0f2d19dd JB |
1077 | } |
1078 | ||
28d77376 GH |
1079 | /* if element (a file descriptor or port) appears in *set, cons it to |
1080 | list. return list. */ | |
a48a89bc GH |
1081 | static SCM |
1082 | get_element (SELECT_TYPE *set, SCM element, SCM list) | |
1083 | { | |
28d77376 GH |
1084 | int fd; |
1085 | ||
e11e83f3 | 1086 | if (scm_is_integer (element)) |
a48a89bc | 1087 | { |
e11e83f3 | 1088 | fd = scm_to_int (element); |
a48a89bc | 1089 | } |
28d77376 | 1090 | else |
a48a89bc | 1091 | { |
28d77376 | 1092 | fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element)); |
a48a89bc | 1093 | } |
28d77376 GH |
1094 | if (FD_ISSET (fd, set)) |
1095 | list = scm_cons (element, list); | |
a48a89bc GH |
1096 | return list; |
1097 | } | |
1cc91f1b | 1098 | |
28d77376 GH |
1099 | /* construct component of scm_select return value. |
1100 | set: pointer to set of file descriptors found by select to be ready | |
1101 | ports_ready: ports ready due to buffering | |
1102 | list_or_vec: original list/vector handed to scm_select. | |
1103 | the return value is a list/vector of ready ports/file descriptors. | |
1104 | works by finding the objects in list which correspond to members of | |
1105 | *set and appending them to ports_ready. result is converted to a | |
1106 | vector if list_or_vec is a vector. */ | |
0f2d19dd | 1107 | static SCM |
28d77376 | 1108 | retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec) |
0f2d19dd | 1109 | { |
28d77376 | 1110 | SCM answer_list = ports_ready; |
a48a89bc | 1111 | |
28d77376 | 1112 | if (SCM_VECTORP (list_or_vec)) |
0f2d19dd | 1113 | { |
9fd38a3d | 1114 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
34d19ef6 | 1115 | SCM const *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1116 | |
28d77376 | 1117 | while (--i >= 0) |
0f2d19dd | 1118 | { |
28d77376 | 1119 | answer_list = get_element (set, ve[i], answer_list); |
0f2d19dd | 1120 | } |
a48a89bc GH |
1121 | return scm_vector (answer_list); |
1122 | } | |
1123 | else | |
1124 | { | |
28d77376 | 1125 | /* list_or_vec must be a list. */ |
c96d76b8 | 1126 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
0f2d19dd | 1127 | { |
28d77376 GH |
1128 | answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list); |
1129 | list_or_vec = SCM_CDR (list_or_vec); | |
0f2d19dd | 1130 | } |
a48a89bc | 1131 | return answer_list; |
0f2d19dd | 1132 | } |
0f2d19dd JB |
1133 | } |
1134 | ||
1bbd0b84 | 1135 | /* Static helper functions above refer to s_scm_select directly as s_select */ |
a1ec6916 | 1136 | SCM_DEFINE (scm_select, "select", 3, 2, 0, |
1bbd0b84 | 1137 | (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs), |
28d77376 | 1138 | "This procedure has a variety of uses: waiting for the ability\n" |
bb2c02f2 | 1139 | "to provide input, accept output, or the existence of\n" |
28d77376 GH |
1140 | "exceptional conditions on a collection of ports or file\n" |
1141 | "descriptors, or waiting for a timeout to occur.\n" | |
1142 | "It also returns if interrupted by a signal.\n\n" | |
1143 | "@var{reads}, @var{writes} and @var{excepts} can be lists or\n" | |
1144 | "vectors, with each member a port or a file descriptor.\n" | |
1145 | "The value returned is a list of three corresponding\n" | |
1146 | "lists or vectors containing only the members which meet the\n" | |
1147 | "specified requirement. The ability of port buffers to\n" | |
1148 | "provide input or accept output is taken into account.\n" | |
1149 | "Ordering of the input lists or vectors is not preserved.\n\n" | |
1150 | "The optional arguments @var{secs} and @var{usecs} specify the\n" | |
1151 | "timeout. Either @var{secs} can be specified alone, as\n" | |
1152 | "either an integer or a real number, or both @var{secs} and\n" | |
1153 | "@var{usecs} can be specified as integers, in which case\n" | |
1154 | "@var{usecs} is an additional timeout expressed in\n" | |
1155 | "microseconds. If @var{secs} is omitted or is @code{#f} then\n" | |
1156 | "select will wait for as long as it takes for one of the other\n" | |
1157 | "conditions to be satisfied.\n\n" | |
1158 | "The scsh version of @code{select} differs as follows:\n" | |
1159 | "Only vectors are accepted for the first three arguments.\n" | |
1160 | "The @var{usecs} argument is not supported.\n" | |
1161 | "Multiple values are returned instead of a list.\n" | |
1162 | "Duplicates in the input vectors appear only once in output.\n" | |
9401323e | 1163 | "An additional @code{select!} interface is provided.") |
1bbd0b84 | 1164 | #define FUNC_NAME s_scm_select |
0f2d19dd | 1165 | { |
0f2d19dd | 1166 | struct timeval timeout; |
28d77376 | 1167 | struct timeval * time_ptr; |
0f2d19dd JB |
1168 | SELECT_TYPE read_set; |
1169 | SELECT_TYPE write_set; | |
1170 | SELECT_TYPE except_set; | |
28d77376 GH |
1171 | int read_count; |
1172 | int write_count; | |
1173 | int except_count; | |
1174 | /* these lists accumulate ports which are ready due to buffering. | |
1175 | their file descriptors don't need to be added to the select sets. */ | |
1176 | SCM read_ports_ready = SCM_EOL; | |
1177 | SCM write_ports_ready = SCM_EOL; | |
1178 | int max_fd; | |
1179 | ||
1180 | if (SCM_VECTORP (reads)) | |
1181 | { | |
9fd38a3d | 1182 | read_count = SCM_VECTOR_LENGTH (reads); |
28d77376 GH |
1183 | } |
1184 | else | |
1185 | { | |
1186 | read_count = scm_ilength (reads); | |
1187 | SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME); | |
1188 | } | |
1189 | if (SCM_VECTORP (writes)) | |
1190 | { | |
9fd38a3d | 1191 | write_count = SCM_VECTOR_LENGTH (writes); |
28d77376 GH |
1192 | } |
1193 | else | |
1194 | { | |
1195 | write_count = scm_ilength (writes); | |
1196 | SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME); | |
1197 | } | |
1198 | if (SCM_VECTORP (excepts)) | |
1199 | { | |
9fd38a3d | 1200 | except_count = SCM_VECTOR_LENGTH (excepts); |
28d77376 GH |
1201 | } |
1202 | else | |
1203 | { | |
1204 | except_count = scm_ilength (excepts); | |
1205 | SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME); | |
1206 | } | |
0f2d19dd JB |
1207 | |
1208 | FD_ZERO (&read_set); | |
1209 | FD_ZERO (&write_set); | |
1210 | FD_ZERO (&except_set); | |
1211 | ||
28d77376 GH |
1212 | max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1); |
1213 | ||
1214 | { | |
1215 | int write_max = fill_select_type (&write_set, &write_ports_ready, | |
1216 | writes, SCM_ARG2); | |
1217 | int except_max = fill_select_type (&except_set, NULL, | |
1218 | excepts, SCM_ARG3); | |
1219 | ||
1220 | if (write_max > max_fd) | |
1221 | max_fd = write_max; | |
1222 | if (except_max > max_fd) | |
1223 | max_fd = except_max; | |
1224 | } | |
0f2d19dd | 1225 | |
ae1b098b GH |
1226 | /* if there's a port with a ready buffer, don't block, just |
1227 | check for ready file descriptors. */ | |
d2e53ed6 | 1228 | if (!scm_is_null (read_ports_ready) || !scm_is_null (write_ports_ready)) |
ae1b098b GH |
1229 | { |
1230 | timeout.tv_sec = 0; | |
1231 | timeout.tv_usec = 0; | |
1232 | time_ptr = &timeout; | |
1233 | } | |
7888309b | 1234 | else if (SCM_UNBNDP (secs) || scm_is_false (secs)) |
28d77376 | 1235 | time_ptr = 0; |
0f2d19dd JB |
1236 | else |
1237 | { | |
a55c2b68 | 1238 | if (scm_is_unsigned_integer (secs, 0, ULONG_MAX)) |
a48a89bc | 1239 | { |
a55c2b68 | 1240 | timeout.tv_sec = scm_to_ulong (secs); |
a48a89bc GH |
1241 | if (SCM_UNBNDP (usecs)) |
1242 | timeout.tv_usec = 0; | |
1243 | else | |
a55c2b68 | 1244 | timeout.tv_usec = scm_to_long (usecs); |
a48a89bc | 1245 | } |
0f2d19dd | 1246 | else |
a48a89bc | 1247 | { |
d9a67fc4 | 1248 | double fl = scm_to_double (secs); |
a48a89bc GH |
1249 | |
1250 | if (!SCM_UNBNDP (usecs)) | |
c1bfcf60 | 1251 | SCM_WRONG_TYPE_ARG (4, secs); |
a48a89bc | 1252 | if (fl > LONG_MAX) |
c1bfcf60 | 1253 | SCM_OUT_OF_RANGE (4, secs); |
a48a89bc GH |
1254 | timeout.tv_sec = (long) fl; |
1255 | timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000); | |
1256 | } | |
28d77376 | 1257 | time_ptr = &timeout; |
0f2d19dd JB |
1258 | } |
1259 | ||
28d77376 | 1260 | { |
28d77376 GH |
1261 | int rv = scm_internal_select (max_fd + 1, |
1262 | &read_set, &write_set, &except_set, | |
1263 | time_ptr); | |
28d77376 GH |
1264 | if (rv < 0) |
1265 | SCM_SYSERROR; | |
1266 | } | |
1afff620 KN |
1267 | return scm_list_3 (retrieve_select_type (&read_set, read_ports_ready, reads), |
1268 | retrieve_select_type (&write_set, write_ports_ready, writes), | |
1269 | retrieve_select_type (&except_set, SCM_EOL, excepts)); | |
0f2d19dd | 1270 | } |
1bbd0b84 | 1271 | #undef FUNC_NAME |
f25f761d | 1272 | #endif /* HAVE_SELECT */ |
0f2d19dd JB |
1273 | |
1274 | \f | |
4c1feaa5 | 1275 | |
82893676 | 1276 | #ifdef HAVE_FCNTL |
af45e3b0 | 1277 | SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0, |
1bbd0b84 | 1278 | (SCM object, SCM cmd, SCM value), |
d3818c29 MD |
1279 | "Apply @var{command} to the specified file descriptor or the underlying\n" |
1280 | "file descriptor of the specified port. @var{value} is an optional\n" | |
1281 | "integer argument.\n\n" | |
1282 | "Values for @var{command} are:\n\n" | |
1283 | "@table @code\n" | |
1284 | "@item F_DUPFD\n" | |
1285 | "Duplicate a file descriptor\n" | |
1286 | "@item F_GETFD\n" | |
1287 | "Get flags associated with the file descriptor.\n" | |
1288 | "@item F_SETFD\n" | |
1289 | "Set flags associated with the file descriptor to @var{value}.\n" | |
1290 | "@item F_GETFL\n" | |
1291 | "Get flags associated with the open file.\n" | |
1292 | "@item F_SETFL\n" | |
1293 | "Set flags associated with the open file to @var{value}\n" | |
1294 | "@item F_GETOWN\n" | |
1295 | "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n" | |
1296 | "@item F_SETOWN\n" | |
1297 | "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n" | |
1298 | "@item FD_CLOEXEC\n" | |
55892d87 NJ |
1299 | "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n" |
1300 | "@code{F_SETFL}.\n" | |
a3c8b9fc | 1301 | "@end table") |
1bbd0b84 | 1302 | #define FUNC_NAME s_scm_fcntl |
4c1feaa5 JB |
1303 | { |
1304 | int rv; | |
6afcd3b2 GH |
1305 | int fdes; |
1306 | int ivalue; | |
4c1feaa5 | 1307 | |
78446828 MV |
1308 | object = SCM_COERCE_OUTPORT (object); |
1309 | ||
0c95b57d | 1310 | if (SCM_OPFPORTP (object)) |
77a76b64 | 1311 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 | 1312 | else |
a55c2b68 | 1313 | fdes = scm_to_int (object); |
af45e3b0 | 1314 | |
a55c2b68 | 1315 | if (SCM_UNBNDP (value)) |
6afcd3b2 | 1316 | ivalue = 0; |
a55c2b68 MV |
1317 | else |
1318 | ivalue = scm_to_int (value); | |
af45e3b0 | 1319 | |
a55c2b68 | 1320 | SCM_SYSCALL (rv = fcntl (fdes, scm_to_int (cmd), ivalue)); |
77a76b64 | 1321 | if (rv == -1) |
1bbd0b84 | 1322 | SCM_SYSERROR; |
a55c2b68 | 1323 | return scm_from_int (rv); |
4c1feaa5 | 1324 | } |
1bbd0b84 | 1325 | #undef FUNC_NAME |
82893676 | 1326 | #endif /* HAVE_FCNTL */ |
6afcd3b2 | 1327 | |
a1ec6916 | 1328 | SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0, |
1bbd0b84 | 1329 | (SCM object), |
d3818c29 MD |
1330 | "Copies any unwritten data for the specified output file descriptor to disk.\n" |
1331 | "If @var{port/fd} is a port, its buffer is flushed before the underlying\n" | |
1332 | "file descriptor is fsync'd.\n" | |
1333 | "The return value is unspecified.") | |
1bbd0b84 | 1334 | #define FUNC_NAME s_scm_fsync |
6afcd3b2 GH |
1335 | { |
1336 | int fdes; | |
1337 | ||
78446828 MV |
1338 | object = SCM_COERCE_OUTPORT (object); |
1339 | ||
0c95b57d | 1340 | if (SCM_OPFPORTP (object)) |
6afcd3b2 | 1341 | { |
affc96b5 | 1342 | scm_flush (object); |
77a76b64 | 1343 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1344 | } |
1345 | else | |
a55c2b68 MV |
1346 | fdes = scm_to_int (object); |
1347 | ||
6afcd3b2 | 1348 | if (fsync (fdes) == -1) |
1bbd0b84 | 1349 | SCM_SYSERROR; |
6afcd3b2 GH |
1350 | return SCM_UNSPECIFIED; |
1351 | } | |
1bbd0b84 | 1352 | #undef FUNC_NAME |
0f2d19dd | 1353 | |
f25f761d | 1354 | #ifdef HAVE_SYMLINK |
a1ec6916 | 1355 | SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0, |
1bbd0b84 | 1356 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
1357 | "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n" |
1358 | "@var{path-from}. The return value is unspecified.") | |
1bbd0b84 | 1359 | #define FUNC_NAME s_scm_symlink |
0f2d19dd | 1360 | { |
0f2d19dd | 1361 | int val; |
02b754d3 | 1362 | |
1299a0f1 MV |
1363 | STRING2_SYSCALL (oldpath, c_oldpath, |
1364 | newpath, c_newpath, | |
1365 | val = symlink (c_oldpath, c_newpath)); | |
02b754d3 | 1366 | if (val != 0) |
1bbd0b84 | 1367 | SCM_SYSERROR; |
02b754d3 | 1368 | return SCM_UNSPECIFIED; |
0f2d19dd | 1369 | } |
1bbd0b84 | 1370 | #undef FUNC_NAME |
f25f761d | 1371 | #endif /* HAVE_SYMLINK */ |
0f2d19dd | 1372 | |
f25f761d | 1373 | #ifdef HAVE_READLINK |
a1ec6916 | 1374 | SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0, |
1bbd0b84 | 1375 | (SCM path), |
1e6808ea MG |
1376 | "Return the value of the symbolic link named by @var{path} (a\n" |
1377 | "string), i.e., the file that the link points to.") | |
1bbd0b84 | 1378 | #define FUNC_NAME s_scm_readlink |
0f2d19dd | 1379 | { |
6a738a25 JB |
1380 | int rv; |
1381 | int size = 100; | |
0f2d19dd JB |
1382 | char *buf; |
1383 | SCM result; | |
1299a0f1 MV |
1384 | char *c_path; |
1385 | ||
1386 | scm_frame_begin (0); | |
1387 | ||
1388 | c_path = scm_to_locale_string (path); | |
1389 | scm_frame_free (c_path); | |
1390 | ||
4c9419ac | 1391 | buf = scm_malloc (size); |
1299a0f1 MV |
1392 | |
1393 | while ((rv = readlink (c_path, buf, size)) == size) | |
0f2d19dd | 1394 | { |
4c9419ac | 1395 | free (buf); |
0f2d19dd | 1396 | size *= 2; |
4c9419ac | 1397 | buf = scm_malloc (size); |
0f2d19dd | 1398 | } |
02b754d3 | 1399 | if (rv == -1) |
11e1db06 KR |
1400 | { |
1401 | int save_errno = errno; | |
1402 | free (buf); | |
1403 | errno = save_errno; | |
1404 | SCM_SYSERROR; | |
1405 | } | |
1299a0f1 MV |
1406 | result = scm_take_locale_stringn (buf, rv); |
1407 | ||
1408 | scm_frame_end (); | |
0f2d19dd | 1409 | return result; |
0f2d19dd | 1410 | } |
1bbd0b84 | 1411 | #undef FUNC_NAME |
f25f761d | 1412 | #endif /* HAVE_READLINK */ |
0f2d19dd | 1413 | |
f25f761d | 1414 | #ifdef HAVE_LSTAT |
a1ec6916 | 1415 | SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0, |
1bbd0b84 | 1416 | (SCM str), |
d3818c29 | 1417 | "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n" |
9401323e | 1418 | "it will return information about a symbolic link itself, not the\n" |
d3818c29 | 1419 | "file it points to. @var{path} must be a string.") |
1bbd0b84 | 1420 | #define FUNC_NAME s_scm_lstat |
0f2d19dd | 1421 | { |
02b754d3 | 1422 | int rv; |
0f2d19dd | 1423 | struct stat stat_temp; |
02b754d3 | 1424 | |
1299a0f1 | 1425 | STRING_SYSCALL (str, c_str, rv = lstat (c_str, &stat_temp)); |
02b754d3 | 1426 | if (rv != 0) |
3d8d56df GH |
1427 | { |
1428 | int en = errno; | |
1429 | ||
5d2d2ffc | 1430 | SCM_SYSERROR_MSG ("~A: ~S", |
3572cd6b | 1431 | scm_list_2 (scm_strerror (scm_from_int (en)), str), |
e0c08f17 | 1432 | en); |
3d8d56df | 1433 | } |
1299a0f1 | 1434 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 1435 | } |
1bbd0b84 | 1436 | #undef FUNC_NAME |
f25f761d | 1437 | #endif /* HAVE_LSTAT */ |
0f2d19dd | 1438 | |
a1ec6916 | 1439 | SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0, |
1bbd0b84 | 1440 | (SCM oldfile, SCM newfile), |
d3818c29 MD |
1441 | "Copy the file specified by @var{path-from} to @var{path-to}.\n" |
1442 | "The return value is unspecified.") | |
1bbd0b84 | 1443 | #define FUNC_NAME s_scm_copy_file |
0f2d19dd | 1444 | { |
1299a0f1 | 1445 | char *c_oldfile, *c_newfile; |
0f2d19dd | 1446 | int oldfd, newfd; |
37eb673b | 1447 | int n, rv; |
77a76b64 | 1448 | char buf[BUFSIZ]; |
0f2d19dd JB |
1449 | struct stat oldstat; |
1450 | ||
1299a0f1 MV |
1451 | scm_frame_begin (0); |
1452 | ||
1453 | c_oldfile = scm_to_locale_string (oldfile); | |
1454 | scm_frame_free (c_oldfile); | |
1455 | c_newfile = scm_to_locale_string (newfile); | |
1456 | scm_frame_free (c_newfile); | |
37eb673b | 1457 | |
1299a0f1 | 1458 | oldfd = open (c_oldfile, O_RDONLY); |
0f2d19dd | 1459 | if (oldfd == -1) |
1bbd0b84 | 1460 | SCM_SYSERROR; |
02b754d3 | 1461 | |
37eb673b KR |
1462 | #ifdef __MINGW32__ |
1463 | SCM_SYSCALL (rv = fstat_Win32 (oldfd, &oldstat)); | |
1464 | #else | |
1465 | SCM_SYSCALL (rv = fstat (oldfd, &oldstat)); | |
1466 | #endif | |
1467 | if (rv == -1) | |
1468 | goto err_close_oldfd; | |
1469 | ||
02b754d3 | 1470 | /* use POSIX flags instead of 07777?. */ |
1299a0f1 | 1471 | newfd = open (c_newfile, O_WRONLY | O_CREAT | O_TRUNC, |
0f2d19dd JB |
1472 | oldstat.st_mode & 07777); |
1473 | if (newfd == -1) | |
01046395 | 1474 | { |
37eb673b | 1475 | err_close_oldfd: |
01046395 KR |
1476 | close (oldfd); |
1477 | SCM_SYSERROR; | |
1478 | } | |
02b754d3 | 1479 | |
0f2d19dd JB |
1480 | while ((n = read (oldfd, buf, sizeof buf)) > 0) |
1481 | if (write (newfd, buf, n) != n) | |
1482 | { | |
1483 | close (oldfd); | |
1484 | close (newfd); | |
1bbd0b84 | 1485 | SCM_SYSERROR; |
0f2d19dd JB |
1486 | } |
1487 | close (oldfd); | |
1488 | if (close (newfd) == -1) | |
1bbd0b84 | 1489 | SCM_SYSERROR; |
1299a0f1 MV |
1490 | |
1491 | scm_frame_end (); | |
02b754d3 | 1492 | return SCM_UNSPECIFIED; |
0f2d19dd | 1493 | } |
1bbd0b84 | 1494 | #undef FUNC_NAME |
0f2d19dd JB |
1495 | |
1496 | \f | |
6a738a25 JB |
1497 | /* Filename manipulation */ |
1498 | ||
1499 | SCM scm_dot_string; | |
1500 | ||
a1ec6916 | 1501 | SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0, |
1bbd0b84 | 1502 | (SCM filename), |
fa6a543f MG |
1503 | "Return the directory name component of the file name\n" |
1504 | "@var{filename}. If @var{filename} does not contain a directory\n" | |
1505 | "component, @code{.} is returned.") | |
1bbd0b84 | 1506 | #define FUNC_NAME s_scm_dirname |
6a738a25 | 1507 | { |
cc95e00a | 1508 | const char *s; |
9fd38a3d DH |
1509 | long int i; |
1510 | unsigned long int len; | |
1511 | ||
34d19ef6 | 1512 | SCM_VALIDATE_STRING (1, filename); |
9fd38a3d | 1513 | |
cc95e00a MV |
1514 | s = scm_i_string_chars (filename); |
1515 | len = scm_i_string_length (filename); | |
9fd38a3d | 1516 | |
6a738a25 | 1517 | i = len - 1; |
82893676 MG |
1518 | #ifdef __MINGW32__ |
1519 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; | |
e0c73a1c | 1520 | while (i >= 0 && (s[i] != '/' && s[i] != '\\')) --i; |
82893676 MG |
1521 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; |
1522 | #else | |
6a738a25 JB |
1523 | while (i >= 0 && s[i] == '/') --i; |
1524 | while (i >= 0 && s[i] != '/') --i; | |
1525 | while (i >= 0 && s[i] == '/') --i; | |
82893676 | 1526 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1527 | if (i < 0) |
1528 | { | |
82893676 MG |
1529 | #ifdef __MINGW32__ |
1530 | if (len > 0 && (s[0] == '/' || s[0] == '\\')) | |
1531 | #else | |
6a738a25 | 1532 | if (len > 0 && s[0] == '/') |
82893676 | 1533 | #endif /* ndef __MINGW32__ */ |
cc95e00a | 1534 | return scm_c_substring (filename, 0, 1); |
6a738a25 JB |
1535 | else |
1536 | return scm_dot_string; | |
1537 | } | |
1538 | else | |
cc95e00a | 1539 | return scm_c_substring (filename, 0, i + 1); |
6a738a25 | 1540 | } |
1bbd0b84 | 1541 | #undef FUNC_NAME |
6a738a25 | 1542 | |
a1ec6916 | 1543 | SCM_DEFINE (scm_basename, "basename", 1, 1, 0, |
1bbd0b84 | 1544 | (SCM filename, SCM suffix), |
fa6a543f MG |
1545 | "Return the base name of the file name @var{filename}. The\n" |
1546 | "base name is the file name without any directory components.\n" | |
bb2c02f2 | 1547 | "If @var{suffix} is provided, and is equal to the end of\n" |
fa6a543f | 1548 | "@var{basename}, it is removed also.") |
1bbd0b84 | 1549 | #define FUNC_NAME s_scm_basename |
6a738a25 | 1550 | { |
cc95e00a | 1551 | const char *f, *s = 0; |
6a738a25 | 1552 | int i, j, len, end; |
9fd38a3d | 1553 | |
34d19ef6 | 1554 | SCM_VALIDATE_STRING (1, filename); |
cc95e00a MV |
1555 | f = scm_i_string_chars (filename); |
1556 | len = scm_i_string_length (filename); | |
9fd38a3d | 1557 | |
6a738a25 JB |
1558 | if (SCM_UNBNDP (suffix)) |
1559 | j = -1; | |
1560 | else | |
1561 | { | |
9fd38a3d | 1562 | SCM_VALIDATE_STRING (2, suffix); |
cc95e00a MV |
1563 | s = scm_i_string_chars (suffix); |
1564 | j = scm_i_string_length (suffix) - 1; | |
6a738a25 | 1565 | } |
6a738a25 | 1566 | i = len - 1; |
82893676 MG |
1567 | #ifdef __MINGW32__ |
1568 | while (i >= 0 && (f[i] == '/' || f[i] == '\\')) --i; | |
1569 | #else | |
6a738a25 | 1570 | while (i >= 0 && f[i] == '/') --i; |
82893676 | 1571 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1572 | end = i; |
1573 | while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j; | |
1574 | if (j == -1) | |
1575 | end = i; | |
82893676 | 1576 | #ifdef __MINGW32__ |
2e945bcc | 1577 | while (i >= 0 && f[i] != '/' && f[i] != '\\') --i; |
82893676 | 1578 | #else |
6a738a25 | 1579 | while (i >= 0 && f[i] != '/') --i; |
82893676 | 1580 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1581 | if (i == end) |
1582 | { | |
82893676 | 1583 | #ifdef __MINGW32__ |
2e945bcc | 1584 | if (len > 0 && (f[0] == '/' || f[0] == '\\')) |
82893676 | 1585 | #else |
6a738a25 | 1586 | if (len > 0 && f[0] == '/') |
82893676 | 1587 | #endif /* ndef __MINGW32__ */ |
cc95e00a | 1588 | return scm_c_substring (filename, 0, 1); |
6a738a25 JB |
1589 | else |
1590 | return scm_dot_string; | |
1591 | } | |
1592 | else | |
cc95e00a | 1593 | return scm_c_substring (filename, i+1, end+1); |
6a738a25 | 1594 | } |
1bbd0b84 | 1595 | #undef FUNC_NAME |
6a738a25 JB |
1596 | |
1597 | ||
1598 | ||
1599 | \f | |
1cc91f1b | 1600 | |
0f2d19dd JB |
1601 | void |
1602 | scm_init_filesys () | |
0f2d19dd | 1603 | { |
e841c3e0 KN |
1604 | scm_tc16_dir = scm_make_smob_type ("directory", 0); |
1605 | scm_set_smob_free (scm_tc16_dir, scm_dir_free); | |
1606 | scm_set_smob_print (scm_tc16_dir, scm_dir_print); | |
0f2d19dd | 1607 | |
cc95e00a | 1608 | scm_dot_string = scm_permanent_object (scm_from_locale_string (".")); |
a163dda9 | 1609 | |
3d8d56df | 1610 | #ifdef O_RDONLY |
b9bd8526 | 1611 | scm_c_define ("O_RDONLY", scm_from_long (O_RDONLY)); |
3d8d56df GH |
1612 | #endif |
1613 | #ifdef O_WRONLY | |
b9bd8526 | 1614 | scm_c_define ("O_WRONLY", scm_from_long (O_WRONLY)); |
3d8d56df GH |
1615 | #endif |
1616 | #ifdef O_RDWR | |
b9bd8526 | 1617 | scm_c_define ("O_RDWR", scm_from_long (O_RDWR)); |
3d8d56df GH |
1618 | #endif |
1619 | #ifdef O_CREAT | |
b9bd8526 | 1620 | scm_c_define ("O_CREAT", scm_from_long (O_CREAT)); |
3d8d56df GH |
1621 | #endif |
1622 | #ifdef O_EXCL | |
b9bd8526 | 1623 | scm_c_define ("O_EXCL", scm_from_long (O_EXCL)); |
3d8d56df GH |
1624 | #endif |
1625 | #ifdef O_NOCTTY | |
b9bd8526 | 1626 | scm_c_define ("O_NOCTTY", scm_from_long (O_NOCTTY)); |
3d8d56df GH |
1627 | #endif |
1628 | #ifdef O_TRUNC | |
b9bd8526 | 1629 | scm_c_define ("O_TRUNC", scm_from_long (O_TRUNC)); |
3d8d56df GH |
1630 | #endif |
1631 | #ifdef O_APPEND | |
b9bd8526 | 1632 | scm_c_define ("O_APPEND", scm_from_long (O_APPEND)); |
3d8d56df | 1633 | #endif |
6afcd3b2 | 1634 | #ifdef O_NONBLOCK |
b9bd8526 | 1635 | scm_c_define ("O_NONBLOCK", scm_from_long (O_NONBLOCK)); |
3d8d56df GH |
1636 | #endif |
1637 | #ifdef O_NDELAY | |
b9bd8526 | 1638 | scm_c_define ("O_NDELAY", scm_from_long (O_NDELAY)); |
3d8d56df GH |
1639 | #endif |
1640 | #ifdef O_SYNC | |
b9bd8526 | 1641 | scm_c_define ("O_SYNC", scm_from_long (O_SYNC)); |
3d8d56df GH |
1642 | #endif |
1643 | ||
4c1feaa5 | 1644 | #ifdef F_DUPFD |
b9bd8526 | 1645 | scm_c_define ("F_DUPFD", scm_from_long (F_DUPFD)); |
4c1feaa5 JB |
1646 | #endif |
1647 | #ifdef F_GETFD | |
b9bd8526 | 1648 | scm_c_define ("F_GETFD", scm_from_long (F_GETFD)); |
4c1feaa5 JB |
1649 | #endif |
1650 | #ifdef F_SETFD | |
b9bd8526 | 1651 | scm_c_define ("F_SETFD", scm_from_long (F_SETFD)); |
4c1feaa5 JB |
1652 | #endif |
1653 | #ifdef F_GETFL | |
b9bd8526 | 1654 | scm_c_define ("F_GETFL", scm_from_long (F_GETFL)); |
4c1feaa5 JB |
1655 | #endif |
1656 | #ifdef F_SETFL | |
b9bd8526 | 1657 | scm_c_define ("F_SETFL", scm_from_long (F_SETFL)); |
4c1feaa5 JB |
1658 | #endif |
1659 | #ifdef F_GETOWN | |
b9bd8526 | 1660 | scm_c_define ("F_GETOWN", scm_from_long (F_GETOWN)); |
4c1feaa5 JB |
1661 | #endif |
1662 | #ifdef F_SETOWN | |
b9bd8526 | 1663 | scm_c_define ("F_SETOWN", scm_from_long (F_SETOWN)); |
4c1feaa5 JB |
1664 | #endif |
1665 | #ifdef FD_CLOEXEC | |
b9bd8526 | 1666 | scm_c_define ("FD_CLOEXEC", scm_from_long (FD_CLOEXEC)); |
bd9e24b3 | 1667 | #endif |
3d8d56df | 1668 | |
a0599745 | 1669 | #include "libguile/filesys.x" |
0f2d19dd | 1670 | } |
89e00824 ML |
1671 | |
1672 | /* | |
1673 | Local Variables: | |
1674 | c-file-style: "gnu" | |
1675 | End: | |
1676 | */ |