Commit | Line | Data |
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2b829bbb | 1 | /* Copyright (C) 1996,1997,1998,1999,2000,2001, 2002, 2004, 2006 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 | |
92205699 | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
73be1d9e | 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. */ | |
2b829bbb | 22 | #define _LARGEFILE64_SOURCE /* ask for stat64 etc */ |
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 | ||
f7439099 | 31 | #include <alloca.h> |
2b829bbb | 32 | |
3d8d56df | 33 | #include <stdio.h> |
e6e2e95a MD |
34 | #include <errno.h> |
35 | ||
a0599745 MD |
36 | #include "libguile/_scm.h" |
37 | #include "libguile/smob.h" | |
38 | #include "libguile/feature.h" | |
39 | #include "libguile/fports.h" | |
2b829bbb | 40 | #include "libguile/private-gc.h" /* for SCM_MAX */ |
a0599745 MD |
41 | #include "libguile/iselect.h" |
42 | #include "libguile/strings.h" | |
43 | #include "libguile/vectors.h" | |
c96d76b8 | 44 | #include "libguile/lang.h" |
1299a0f1 | 45 | #include "libguile/dynwind.h" |
0f2d19dd | 46 | |
a0599745 MD |
47 | #include "libguile/validate.h" |
48 | #include "libguile/filesys.h" | |
def804a3 | 49 | |
0f2d19dd | 50 | \f |
def804a3 JB |
51 | #ifdef HAVE_IO_H |
52 | #include <io.h> | |
53 | #endif | |
54 | ||
e0c73a1c MV |
55 | #ifdef HAVE_DIRECT_H |
56 | #include <direct.h> | |
57 | #endif | |
58 | ||
0f2d19dd JB |
59 | #ifdef TIME_WITH_SYS_TIME |
60 | # include <sys/time.h> | |
61 | # include <time.h> | |
62 | #else | |
63 | # if HAVE_SYS_TIME_H | |
64 | # include <sys/time.h> | |
65 | # else | |
66 | # include <time.h> | |
67 | # endif | |
68 | #endif | |
69 | ||
70 | #ifdef HAVE_UNISTD_H | |
71 | #include <unistd.h> | |
72 | #endif | |
73 | ||
3594582b | 74 | #ifdef LIBC_H_WITH_UNISTD_H |
1f9e2226 JB |
75 | #include <libc.h> |
76 | #endif | |
77 | ||
0f2d19dd JB |
78 | #ifdef HAVE_SYS_SELECT_H |
79 | #include <sys/select.h> | |
80 | #endif | |
81 | ||
1f9e2226 JB |
82 | #ifdef HAVE_STRING_H |
83 | #include <string.h> | |
84 | #endif | |
85 | ||
8cc71382 | 86 | #include <sys/types.h> |
0f2d19dd JB |
87 | #include <sys/stat.h> |
88 | #include <fcntl.h> | |
89 | ||
82893676 | 90 | #ifdef HAVE_PWD_H |
0f2d19dd | 91 | #include <pwd.h> |
82893676 | 92 | #endif |
0f2d19dd JB |
93 | |
94 | ||
e0c73a1c MV |
95 | #if defined (__MINGW32__) || defined (_MSC_VER) || defined (__BORLANDC__) |
96 | # include "win32-dirent.h" | |
97 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
2b829bbb | 98 | /* The following bits are per AC_HEADER_DIRENT doco in the autoconf manual */ |
e0c73a1c | 99 | #elif HAVE_DIRENT_H |
0f2d19dd JB |
100 | # include <dirent.h> |
101 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
102 | #else | |
103 | # define dirent direct | |
104 | # define NAMLEN(dirent) (dirent)->d_namlen | |
105 | # if HAVE_SYS_NDIR_H | |
106 | # include <sys/ndir.h> | |
107 | # endif | |
108 | # if HAVE_SYS_DIR_H | |
109 | # include <sys/dir.h> | |
110 | # endif | |
111 | # if HAVE_NDIR_H | |
112 | # include <ndir.h> | |
113 | # endif | |
114 | #endif | |
115 | ||
d7b8a21a JB |
116 | /* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */ |
117 | #if defined (S_IFSOCK) && ! defined (S_ISSOCK) | |
118 | #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) | |
119 | #endif | |
82893676 MG |
120 | |
121 | /* The MinGW gcc does not define the S_ISSOCK macro. Any other native Windows | |
122 | compiler like BorlandC or MSVC has none of these macros defined. */ | |
123 | #ifdef __MINGW32__ | |
8f99e3f3 SJ |
124 | |
125 | # ifdef _S_IFIFO | |
126 | # undef _S_IFIFO | |
127 | # endif | |
128 | # ifdef _S_IFCHR | |
129 | # undef _S_IFCHR | |
130 | # endif | |
131 | # ifdef _S_IFBLK | |
132 | # undef _S_IFBLK | |
133 | # endif | |
134 | # ifdef _S_IFDIR | |
135 | # undef _S_IFDIR | |
136 | # endif | |
137 | # ifdef _S_IFREG | |
138 | # undef _S_IFREG | |
139 | # endif | |
140 | # ifdef _S_IFSOCK | |
141 | # undef _S_IFSOCK | |
142 | # endif | |
143 | ||
144 | # define _S_IFIFO 0x1000 /* FIFO */ | |
145 | # define _S_IFCHR 0x2000 /* Character */ | |
146 | # define _S_IFBLK 0x3000 /* Block */ | |
147 | # define _S_IFDIR 0x4000 /* Directory */ | |
148 | # define _S_IFREG 0x8000 /* Regular */ | |
149 | # define _S_IFSOCK 0xC000 /* Socket */ | |
150 | ||
151 | # ifdef S_ISBLK | |
152 | # undef S_ISBLK | |
153 | # endif | |
154 | # ifdef S_ISFIFO | |
155 | # undef S_ISFIFO | |
156 | # endif | |
157 | # ifdef S_ISCHR | |
158 | # undef S_ISCHR | |
159 | # endif | |
160 | # ifdef S_ISDIR | |
161 | # undef S_ISDIR | |
162 | # endif | |
163 | # ifdef S_ISREG | |
164 | # undef S_ISREG | |
165 | # endif | |
166 | # ifdef S_ISSOCK | |
167 | # undef S_ISSOCK | |
168 | # endif | |
169 | ||
170 | # define S_ISBLK(mode) (((mode) & _S_IFMT) == _S_IFBLK) | |
82893676 | 171 | # define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO) |
8f99e3f3 SJ |
172 | # define S_ISCHR(mode) (((mode) & _S_IFMT) == _S_IFCHR) |
173 | # define S_ISDIR(mode) (((mode) & _S_IFMT) == _S_IFDIR) | |
174 | # define S_ISREG(mode) (((mode) & _S_IFMT) == _S_IFREG) | |
175 | # define S_ISSOCK(mode) (((mode) & _S_IFMT) == _S_IFSOCK) | |
176 | ||
177 | #endif /* __MINGW32__ */ | |
82893676 MG |
178 | |
179 | /* Some more definitions for the native Windows port. */ | |
180 | #ifdef __MINGW32__ | |
181 | # define mkdir(path, mode) mkdir (path) | |
182 | # define fsync(fd) _commit (fd) | |
183 | # define fchmod(fd, mode) (-1) | |
184 | #endif /* __MINGW32__ */ | |
2b829bbb | 185 | |
8ab3d8a0 KR |
186 | /* dirfd() returns the file descriptor underlying a "DIR*" directory stream. |
187 | Found on MacOS X for instance. The following definition is for Solaris | |
188 | 10, it's probably not right elsewhere, but that's ok, it shouldn't be | |
189 | used elsewhere. Crib note: If we need more then gnulib has a dirfd.m4 | |
190 | figuring out how to get the fd (dirfd function, dirfd macro, dd_fd field, | |
191 | or d_fd field). */ | |
192 | #ifndef dirfd | |
193 | #define dirfd(dirstream) ((dirstream)->dd_fd) | |
2b829bbb KR |
194 | #endif |
195 | ||
0f2d19dd JB |
196 | \f |
197 | ||
1299a0f1 MV |
198 | /* Two helper macros for an often used pattern */ |
199 | ||
200 | #define STRING_SYSCALL(str,cstr,code) \ | |
201 | do { \ | |
202 | int eno; \ | |
203 | char *cstr = scm_to_locale_string (str); \ | |
204 | SCM_SYSCALL (code); \ | |
205 | eno = errno; free (cstr); errno = eno; \ | |
206 | } while (0) | |
207 | ||
208 | #define STRING2_SYSCALL(str1,cstr1,str2,cstr2,code) \ | |
209 | do { \ | |
210 | int eno; \ | |
211 | char *cstr1, *cstr2; \ | |
661ae7ab | 212 | scm_dynwind_begin (0); \ |
1299a0f1 | 213 | cstr1 = scm_to_locale_string (str1); \ |
661ae7ab | 214 | scm_dynwind_free (cstr1); \ |
1299a0f1 | 215 | cstr2 = scm_to_locale_string (str2); \ |
661ae7ab | 216 | scm_dynwind_free (cstr2); \ |
1299a0f1 | 217 | SCM_SYSCALL (code); \ |
661ae7ab | 218 | eno = errno; scm_dynwind_end (); errno = eno; \ |
1299a0f1 | 219 | } while (0) |
0f2d19dd JB |
220 | |
221 | \f | |
222 | ||
223 | /* {Permissions} | |
224 | */ | |
225 | ||
82893676 | 226 | #ifdef HAVE_CHOWN |
a1ec6916 | 227 | SCM_DEFINE (scm_chown, "chown", 3, 0, 0, |
1bbd0b84 | 228 | (SCM object, SCM owner, SCM group), |
d831b039 GH |
229 | "Change the ownership and group of the file referred to by @var{object} to\n" |
230 | "the integer values @var{owner} and @var{group}. @var{object} can be\n" | |
231 | "a string containing a file name or, if the platform\n" | |
232 | "supports fchown, a port or integer file descriptor\n" | |
233 | "which is open on the file. The return value\n" | |
d3818c29 | 234 | "is unspecified.\n\n" |
d831b039 | 235 | "If @var{object} is a symbolic link, either the\n" |
d3818c29 MD |
236 | "ownership of the link or the ownership of the referenced file will be\n" |
237 | "changed depending on the operating system (lchown is\n" | |
238 | "unsupported at present). If @var{owner} or @var{group} is specified\n" | |
239 | "as @code{-1}, then that ID is not changed.") | |
1bbd0b84 | 240 | #define FUNC_NAME s_scm_chown |
0f2d19dd | 241 | { |
6afcd3b2 | 242 | int rv; |
02b754d3 | 243 | |
78446828 MV |
244 | object = SCM_COERCE_OUTPORT (object); |
245 | ||
d831b039 | 246 | #ifdef HAVE_FCHOWN |
a55c2b68 | 247 | if (scm_is_integer (object) || (SCM_OPFPORTP (object))) |
6afcd3b2 | 248 | { |
a55c2b68 MV |
249 | int fdes = (SCM_OPFPORTP (object)? |
250 | SCM_FPORT_FDES (object) : scm_to_int (object)); | |
d831b039 | 251 | |
a55c2b68 | 252 | SCM_SYSCALL (rv = fchown (fdes, scm_to_int (owner), scm_to_int (group))); |
6afcd3b2 GH |
253 | } |
254 | else | |
d831b039 | 255 | #endif |
6afcd3b2 | 256 | { |
1299a0f1 MV |
257 | STRING_SYSCALL (object, c_object, |
258 | rv = chown (c_object, | |
259 | scm_to_int (owner), scm_to_int (group))); | |
6afcd3b2 GH |
260 | } |
261 | if (rv == -1) | |
1bbd0b84 | 262 | SCM_SYSERROR; |
02b754d3 | 263 | return SCM_UNSPECIFIED; |
0f2d19dd | 264 | } |
1bbd0b84 | 265 | #undef FUNC_NAME |
82893676 | 266 | #endif /* HAVE_CHOWN */ |
0f2d19dd JB |
267 | |
268 | ||
a1ec6916 | 269 | SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0, |
1bbd0b84 | 270 | (SCM object, SCM mode), |
d3818c29 MD |
271 | "Changes the permissions of the file referred to by @var{obj}.\n" |
272 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
273 | "descriptor which is open on a file (in which case @code{fchmod} is used\n" | |
274 | "as the underlying system call).\n" | |
275 | "@var{mode} specifies\n" | |
276 | "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n" | |
277 | "The return value is unspecified.") | |
1bbd0b84 | 278 | #define FUNC_NAME s_scm_chmod |
0f2d19dd JB |
279 | { |
280 | int rv; | |
6afcd3b2 GH |
281 | int fdes; |
282 | ||
78446828 MV |
283 | object = SCM_COERCE_OUTPORT (object); |
284 | ||
a55c2b68 | 285 | if (scm_is_integer (object) || SCM_OPFPORTP (object)) |
89958ad0 | 286 | { |
a55c2b68 MV |
287 | if (scm_is_integer (object)) |
288 | fdes = scm_to_int (object); | |
6afcd3b2 | 289 | else |
77a76b64 | 290 | fdes = SCM_FPORT_FDES (object); |
a55c2b68 | 291 | SCM_SYSCALL (rv = fchmod (fdes, scm_to_int (mode))); |
89958ad0 | 292 | } |
0f2d19dd JB |
293 | else |
294 | { | |
1299a0f1 MV |
295 | STRING_SYSCALL (object, c_object, |
296 | rv = chmod (c_object, scm_to_int (mode))); | |
0f2d19dd | 297 | } |
6afcd3b2 | 298 | if (rv == -1) |
1bbd0b84 | 299 | SCM_SYSERROR; |
02b754d3 | 300 | return SCM_UNSPECIFIED; |
0f2d19dd | 301 | } |
1bbd0b84 | 302 | #undef FUNC_NAME |
0f2d19dd | 303 | |
a1ec6916 | 304 | SCM_DEFINE (scm_umask, "umask", 0, 1, 0, |
1bbd0b84 | 305 | (SCM mode), |
bb2c02f2 | 306 | "If @var{mode} is omitted, returns a decimal number representing the current\n" |
d3818c29 MD |
307 | "file creation mask. Otherwise the file creation mask is set to\n" |
308 | "@var{mode} and the previous value is returned.\n\n" | |
309 | "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.") | |
1bbd0b84 | 310 | #define FUNC_NAME s_scm_umask |
0f2d19dd JB |
311 | { |
312 | mode_t mask; | |
313 | if (SCM_UNBNDP (mode)) | |
314 | { | |
315 | mask = umask (0); | |
316 | umask (mask); | |
317 | } | |
318 | else | |
319 | { | |
a55c2b68 | 320 | mask = umask (scm_to_uint (mode)); |
0f2d19dd | 321 | } |
a55c2b68 | 322 | return scm_from_uint (mask); |
0f2d19dd | 323 | } |
1bbd0b84 | 324 | #undef FUNC_NAME |
0f2d19dd JB |
325 | |
326 | \f | |
0f2d19dd | 327 | |
a1ec6916 | 328 | SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0, |
1bbd0b84 | 329 | (SCM path, SCM flags, SCM mode), |
1e6808ea MG |
330 | "Similar to @code{open} but return a file descriptor instead of\n" |
331 | "a port.") | |
1bbd0b84 | 332 | #define FUNC_NAME s_scm_open_fdes |
0f2d19dd JB |
333 | { |
334 | int fd; | |
3d8d56df | 335 | int iflags; |
6afcd3b2 | 336 | int imode; |
0f2d19dd | 337 | |
1be6b49c ML |
338 | iflags = SCM_NUM2INT (2, flags); |
339 | imode = SCM_NUM2INT_DEF (3, mode, 0666); | |
23f2b9a3 | 340 | STRING_SYSCALL (path, c_path, fd = open_or_open64 (c_path, iflags, imode)); |
3d8d56df | 341 | if (fd == -1) |
1bbd0b84 | 342 | SCM_SYSERROR; |
e11e83f3 | 343 | return scm_from_int (fd); |
6afcd3b2 | 344 | } |
1bbd0b84 | 345 | #undef FUNC_NAME |
6afcd3b2 | 346 | |
a1ec6916 | 347 | SCM_DEFINE (scm_open, "open", 2, 1, 0, |
1bbd0b84 | 348 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
349 | "Open the file named by @var{path} for reading and/or writing.\n" |
350 | "@var{flags} is an integer specifying how the file should be opened.\n" | |
351 | "@var{mode} is an integer specifying the permission bits of the file, if\n" | |
352 | "it needs to be created, before the umask is applied. The default is 666\n" | |
353 | "(Unix itself has no default).\n\n" | |
354 | "@var{flags} can be constructed by combining variables using @code{logior}.\n" | |
355 | "Basic flags are:\n\n" | |
356 | "@defvar O_RDONLY\n" | |
357 | "Open the file read-only.\n" | |
358 | "@end defvar\n" | |
359 | "@defvar O_WRONLY\n" | |
9401323e | 360 | "Open the file write-only.\n" |
d3818c29 MD |
361 | "@end defvar\n" |
362 | "@defvar O_RDWR\n" | |
363 | "Open the file read/write.\n" | |
364 | "@end defvar\n" | |
365 | "@defvar O_APPEND\n" | |
366 | "Append to the file instead of truncating.\n" | |
367 | "@end defvar\n" | |
368 | "@defvar O_CREAT\n" | |
369 | "Create the file if it does not already exist.\n" | |
370 | "@end defvar\n\n" | |
371 | "See the Unix documentation of the @code{open} system call\n" | |
372 | "for additional flags.") | |
1bbd0b84 | 373 | #define FUNC_NAME s_scm_open |
6afcd3b2 GH |
374 | { |
375 | SCM newpt; | |
376 | char *port_mode; | |
377 | int fd; | |
6afcd3b2 GH |
378 | int iflags; |
379 | ||
e11e83f3 | 380 | fd = scm_to_int (scm_open_fdes (path, flags, mode)); |
1be6b49c | 381 | iflags = SCM_NUM2INT (2, flags); |
3d8d56df | 382 | if (iflags & O_RDWR) |
77a76b64 JB |
383 | { |
384 | if (iflags & O_APPEND) | |
385 | port_mode = "a+"; | |
386 | else if (iflags & O_CREAT) | |
387 | port_mode = "w+"; | |
388 | else | |
389 | port_mode = "r+"; | |
390 | } | |
3d8d56df | 391 | else { |
77a76b64 JB |
392 | if (iflags & O_APPEND) |
393 | port_mode = "a"; | |
394 | else if (iflags & O_WRONLY) | |
3d8d56df GH |
395 | port_mode = "w"; |
396 | else | |
397 | port_mode = "r"; | |
398 | } | |
77a76b64 | 399 | newpt = scm_fdes_to_port (fd, port_mode, path); |
3d8d56df | 400 | return newpt; |
0f2d19dd | 401 | } |
1bbd0b84 | 402 | #undef FUNC_NAME |
0f2d19dd | 403 | |
a1ec6916 | 404 | SCM_DEFINE (scm_close, "close", 1, 0, 0, |
1bbd0b84 | 405 | (SCM fd_or_port), |
8f85c0c6 | 406 | "Similar to close-port (@pxref{Closing, close-port}),\n" |
d3818c29 MD |
407 | "but also works on file descriptors. A side\n" |
408 | "effect of closing a file descriptor is that any ports using that file\n" | |
409 | "descriptor are moved to a different file descriptor and have\n" | |
410 | "their revealed counts set to zero.") | |
1bbd0b84 | 411 | #define FUNC_NAME s_scm_close |
eadd48de GH |
412 | { |
413 | int rv; | |
414 | int fd; | |
415 | ||
78446828 MV |
416 | fd_or_port = SCM_COERCE_OUTPORT (fd_or_port); |
417 | ||
0c95b57d | 418 | if (SCM_PORTP (fd_or_port)) |
eadd48de | 419 | return scm_close_port (fd_or_port); |
a55c2b68 | 420 | fd = scm_to_int (fd_or_port); |
eadd48de | 421 | scm_evict_ports (fd); /* see scsh manual. */ |
a9488d12 | 422 | SCM_SYSCALL (rv = close (fd)); |
eadd48de GH |
423 | /* following scsh, closing an already closed file descriptor is |
424 | not an error. */ | |
425 | if (rv < 0 && errno != EBADF) | |
1bbd0b84 | 426 | SCM_SYSERROR; |
7888309b | 427 | return scm_from_bool (rv >= 0); |
eadd48de | 428 | } |
1bbd0b84 | 429 | #undef FUNC_NAME |
eadd48de | 430 | |
c2ca4493 GH |
431 | SCM_DEFINE (scm_close_fdes, "close-fdes", 1, 0, 0, |
432 | (SCM fd), | |
433 | "A simple wrapper for the @code{close} system call.\n" | |
434 | "Close file descriptor @var{fd}, which must be an integer.\n" | |
435 | "Unlike close (@pxref{Ports and File Descriptors, close}),\n" | |
436 | "the file descriptor will be closed even if a port is using it.\n" | |
437 | "The return value is unspecified.") | |
438 | #define FUNC_NAME s_scm_close_fdes | |
439 | { | |
440 | int c_fd; | |
441 | int rv; | |
442 | ||
a55c2b68 | 443 | c_fd = scm_to_int (fd); |
c2ca4493 GH |
444 | SCM_SYSCALL (rv = close (c_fd)); |
445 | if (rv < 0) | |
446 | SCM_SYSERROR; | |
447 | return SCM_UNSPECIFIED; | |
448 | } | |
449 | #undef FUNC_NAME | |
450 | ||
0f2d19dd JB |
451 | \f |
452 | /* {Files} | |
453 | */ | |
1cc91f1b | 454 | |
ae5253c5 GH |
455 | SCM_SYMBOL (scm_sym_regular, "regular"); |
456 | SCM_SYMBOL (scm_sym_directory, "directory"); | |
23f2b9a3 | 457 | #ifdef S_ISLNK |
ae5253c5 | 458 | SCM_SYMBOL (scm_sym_symlink, "symlink"); |
f326ecf3 | 459 | #endif |
ae5253c5 GH |
460 | SCM_SYMBOL (scm_sym_block_special, "block-special"); |
461 | SCM_SYMBOL (scm_sym_char_special, "char-special"); | |
462 | SCM_SYMBOL (scm_sym_fifo, "fifo"); | |
463 | SCM_SYMBOL (scm_sym_sock, "socket"); | |
464 | SCM_SYMBOL (scm_sym_unknown, "unknown"); | |
465 | ||
0f2d19dd | 466 | static SCM |
2b829bbb | 467 | scm_stat2scm (struct stat_or_stat64 *stat_temp) |
0f2d19dd | 468 | { |
00ffa0e7 | 469 | SCM ans = scm_c_make_vector (15, SCM_UNSPECIFIED); |
ae5253c5 | 470 | |
4057a3e0 | 471 | SCM_SIMPLE_VECTOR_SET(ans, 0, scm_from_ulong (stat_temp->st_dev)); |
2b829bbb | 472 | SCM_SIMPLE_VECTOR_SET(ans, 1, scm_from_ino_t_or_ino64_t (stat_temp->st_ino)); |
4057a3e0 MV |
473 | SCM_SIMPLE_VECTOR_SET(ans, 2, scm_from_ulong (stat_temp->st_mode)); |
474 | SCM_SIMPLE_VECTOR_SET(ans, 3, scm_from_ulong (stat_temp->st_nlink)); | |
475 | SCM_SIMPLE_VECTOR_SET(ans, 4, scm_from_ulong (stat_temp->st_uid)); | |
476 | SCM_SIMPLE_VECTOR_SET(ans, 5, scm_from_ulong (stat_temp->st_gid)); | |
1fd85bc5 | 477 | #ifdef HAVE_STRUCT_STAT_ST_RDEV |
4057a3e0 | 478 | SCM_SIMPLE_VECTOR_SET(ans, 6, scm_from_ulong (stat_temp->st_rdev)); |
0f2d19dd | 479 | #else |
4057a3e0 | 480 | SCM_SIMPLE_VECTOR_SET(ans, 6, SCM_BOOL_F); |
0f2d19dd | 481 | #endif |
2b829bbb | 482 | SCM_SIMPLE_VECTOR_SET(ans, 7, scm_from_off_t_or_off64_t (stat_temp->st_size)); |
4057a3e0 MV |
483 | SCM_SIMPLE_VECTOR_SET(ans, 8, scm_from_ulong (stat_temp->st_atime)); |
484 | SCM_SIMPLE_VECTOR_SET(ans, 9, scm_from_ulong (stat_temp->st_mtime)); | |
485 | SCM_SIMPLE_VECTOR_SET(ans, 10, scm_from_ulong (stat_temp->st_ctime)); | |
1fd85bc5 | 486 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
4057a3e0 | 487 | SCM_SIMPLE_VECTOR_SET(ans, 11, scm_from_ulong (stat_temp->st_blksize)); |
0f2d19dd | 488 | #else |
4057a3e0 | 489 | SCM_SIMPLE_VECTOR_SET(ans, 11, scm_from_ulong (4096L)); |
0f2d19dd | 490 | #endif |
1fd85bc5 | 491 | #ifdef HAVE_STRUCT_STAT_ST_BLOCKS |
2b829bbb | 492 | SCM_SIMPLE_VECTOR_SET(ans, 12, scm_from_blkcnt_t_or_blkcnt64_t (stat_temp->st_blocks)); |
0f2d19dd | 493 | #else |
4057a3e0 | 494 | SCM_SIMPLE_VECTOR_SET(ans, 12, SCM_BOOL_F); |
0f2d19dd | 495 | #endif |
ae5253c5 GH |
496 | { |
497 | int mode = stat_temp->st_mode; | |
498 | ||
499 | if (S_ISREG (mode)) | |
4057a3e0 | 500 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_regular); |
ae5253c5 | 501 | else if (S_ISDIR (mode)) |
4057a3e0 | 502 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_directory); |
23f2b9a3 KR |
503 | #ifdef S_ISLNK |
504 | /* systems without symlinks probably don't have S_ISLNK */ | |
ae5253c5 | 505 | else if (S_ISLNK (mode)) |
4057a3e0 | 506 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_symlink); |
f326ecf3 | 507 | #endif |
ae5253c5 | 508 | else if (S_ISBLK (mode)) |
4057a3e0 | 509 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_block_special); |
ae5253c5 | 510 | else if (S_ISCHR (mode)) |
4057a3e0 | 511 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_char_special); |
ae5253c5 | 512 | else if (S_ISFIFO (mode)) |
4057a3e0 | 513 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_fifo); |
e655d034 | 514 | #ifdef S_ISSOCK |
ae5253c5 | 515 | else if (S_ISSOCK (mode)) |
4057a3e0 | 516 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_sock); |
e655d034 | 517 | #endif |
ae5253c5 | 518 | else |
4057a3e0 | 519 | SCM_SIMPLE_VECTOR_SET(ans, 13, scm_sym_unknown); |
ae5253c5 | 520 | |
4057a3e0 | 521 | SCM_SIMPLE_VECTOR_SET(ans, 14, scm_from_int ((~S_IFMT) & mode)); |
ae5253c5 GH |
522 | |
523 | /* the layout of the bits in ve[14] is intended to be portable. | |
524 | If there are systems that don't follow the usual convention, | |
525 | the following could be used: | |
526 | ||
527 | tmp = 0; | |
528 | if (S_ISUID & mode) tmp += 1; | |
529 | tmp <<= 1; | |
530 | if (S_IRGRP & mode) tmp += 1; | |
531 | tmp <<= 1; | |
532 | if (S_ISVTX & mode) tmp += 1; | |
533 | tmp <<= 1; | |
534 | if (S_IRUSR & mode) tmp += 1; | |
535 | tmp <<= 1; | |
536 | if (S_IWUSR & mode) tmp += 1; | |
537 | tmp <<= 1; | |
538 | if (S_IXUSR & mode) tmp += 1; | |
539 | tmp <<= 1; | |
540 | if (S_IWGRP & mode) tmp += 1; | |
541 | tmp <<= 1; | |
542 | if (S_IXGRP & mode) tmp += 1; | |
543 | tmp <<= 1; | |
544 | if (S_IROTH & mode) tmp += 1; | |
545 | tmp <<= 1; | |
546 | if (S_IWOTH & mode) tmp += 1; | |
547 | tmp <<= 1; | |
548 | if (S_IXOTH & mode) tmp += 1; | |
549 | ||
4057a3e0 | 550 | SCM_SIMPLE_VECTOR_SET(ans, 14, scm_from_int (tmp)); |
ae5253c5 GH |
551 | |
552 | */ | |
553 | } | |
0f2d19dd JB |
554 | |
555 | return ans; | |
556 | } | |
557 | ||
e0c73a1c MV |
558 | #ifdef __MINGW32__ |
559 | /* | |
560 | * Try getting the appropiate stat buffer for a given file descriptor | |
561 | * under Windows. It differentiates between file, pipe and socket | |
562 | * descriptors. | |
563 | */ | |
564 | static int fstat_Win32 (int fdes, struct stat *buf) | |
565 | { | |
566 | int error, optlen = sizeof (int); | |
567 | ||
568 | memset (buf, 0, sizeof (struct stat)); | |
569 | ||
570 | /* Is this a socket ? */ | |
571 | if (getsockopt (fdes, SOL_SOCKET, SO_ERROR, (void *) &error, &optlen) >= 0) | |
572 | { | |
573 | buf->st_mode = _S_IFSOCK | _S_IREAD | _S_IWRITE | _S_IEXEC; | |
574 | buf->st_nlink = 1; | |
575 | buf->st_atime = buf->st_ctime = buf->st_mtime = time (NULL); | |
576 | return 0; | |
577 | } | |
578 | /* Maybe a regular file or pipe ? */ | |
579 | return fstat (fdes, buf); | |
580 | } | |
581 | #endif /* __MINGW32__ */ | |
582 | ||
a1ec6916 | 583 | SCM_DEFINE (scm_stat, "stat", 1, 0, 0, |
1bbd0b84 | 584 | (SCM object), |
1e6808ea MG |
585 | "Return an object containing various information about the file\n" |
586 | "determined by @var{obj}. @var{obj} can be a string containing\n" | |
587 | "a file name or a port or integer file descriptor which is open\n" | |
588 | "on a file (in which case @code{fstat} is used as the underlying\n" | |
589 | "system call).\n" | |
590 | "\n" | |
591 | "The object returned by @code{stat} can be passed as a single\n" | |
592 | "parameter to the following procedures, all of which return\n" | |
593 | "integers:\n" | |
594 | "\n" | |
d3818c29 MD |
595 | "@table @code\n" |
596 | "@item stat:dev\n" | |
597 | "The device containing the file.\n" | |
598 | "@item stat:ino\n" | |
1e6808ea MG |
599 | "The file serial number, which distinguishes this file from all\n" |
600 | "other files on the same device.\n" | |
d3818c29 | 601 | "@item stat:mode\n" |
1e6808ea MG |
602 | "The mode of the file. This includes file type information and\n" |
603 | "the file permission bits. See @code{stat:type} and\n" | |
604 | "@code{stat:perms} below.\n" | |
d3818c29 MD |
605 | "@item stat:nlink\n" |
606 | "The number of hard links to the file.\n" | |
607 | "@item stat:uid\n" | |
608 | "The user ID of the file's owner.\n" | |
609 | "@item stat:gid\n" | |
610 | "The group ID of the file.\n" | |
611 | "@item stat:rdev\n" | |
612 | "Device ID; this entry is defined only for character or block\n" | |
613 | "special files.\n" | |
614 | "@item stat:size\n" | |
615 | "The size of a regular file in bytes.\n" | |
616 | "@item stat:atime\n" | |
617 | "The last access time for the file.\n" | |
618 | "@item stat:mtime\n" | |
619 | "The last modification time for the file.\n" | |
620 | "@item stat:ctime\n" | |
621 | "The last modification time for the attributes of the file.\n" | |
622 | "@item stat:blksize\n" | |
1e6808ea MG |
623 | "The optimal block size for reading or writing the file, in\n" |
624 | "bytes.\n" | |
d3818c29 | 625 | "@item stat:blocks\n" |
1e6808ea MG |
626 | "The amount of disk space that the file occupies measured in\n" |
627 | "units of 512 byte blocks.\n" | |
628 | "@end table\n" | |
629 | "\n" | |
d3818c29 | 630 | "In addition, the following procedures return the information\n" |
1e6808ea MG |
631 | "from stat:mode in a more convenient form:\n" |
632 | "\n" | |
d3818c29 MD |
633 | "@table @code\n" |
634 | "@item stat:type\n" | |
635 | "A symbol representing the type of file. Possible values are\n" | |
1e6808ea MG |
636 | "regular, directory, symlink, block-special, char-special, fifo,\n" |
637 | "socket and unknown\n" | |
d3818c29 MD |
638 | "@item stat:perms\n" |
639 | "An integer representing the access permission bits.\n" | |
640 | "@end table") | |
1bbd0b84 | 641 | #define FUNC_NAME s_scm_stat |
0f2d19dd | 642 | { |
6afcd3b2 GH |
643 | int rv; |
644 | int fdes; | |
2b829bbb | 645 | struct stat_or_stat64 stat_temp; |
0f2d19dd | 646 | |
e11e83f3 | 647 | if (scm_is_integer (object)) |
36284627 | 648 | { |
e0c73a1c | 649 | #ifdef __MINGW32__ |
e11e83f3 | 650 | SCM_SYSCALL (rv = fstat_Win32 (scm_to_int (object), &stat_temp)); |
e0c73a1c | 651 | #else |
2b829bbb | 652 | SCM_SYSCALL (rv = fstat_or_fstat64 (scm_to_int (object), &stat_temp)); |
e0c73a1c | 653 | #endif |
36284627 | 654 | } |
7f9994d9 | 655 | else if (scm_is_string (object)) |
36284627 | 656 | { |
7f9994d9 | 657 | char *file = scm_to_locale_string (object); |
e0c73a1c | 658 | #ifdef __MINGW32__ |
7f9994d9 | 659 | char *p; |
e0c73a1c MV |
660 | p = file + strlen (file) - 1; |
661 | while (p > file && (*p == '/' || *p == '\\')) | |
662 | *p-- = '\0'; | |
7f9994d9 | 663 | #endif |
2b829bbb | 664 | SCM_SYSCALL (rv = stat_or_stat64 (file, &stat_temp)); |
e0c73a1c | 665 | free (file); |
36284627 | 666 | } |
1ea47048 | 667 | else |
0f2d19dd | 668 | { |
36284627 DH |
669 | object = SCM_COERCE_OUTPORT (object); |
670 | SCM_VALIDATE_OPFPORT (1, object); | |
671 | fdes = SCM_FPORT_FDES (object); | |
e0c73a1c MV |
672 | #ifdef __MINGW32__ |
673 | SCM_SYSCALL (rv = fstat_Win32 (fdes, &stat_temp)); | |
674 | #else | |
2b829bbb | 675 | SCM_SYSCALL (rv = fstat_or_fstat64 (fdes, &stat_temp)); |
e0c73a1c | 676 | #endif |
6afcd3b2 | 677 | } |
36284627 | 678 | |
6afcd3b2 | 679 | if (rv == -1) |
3d8d56df GH |
680 | { |
681 | int en = errno; | |
682 | ||
5d2d2ffc | 683 | SCM_SYSERROR_MSG ("~A: ~S", |
3572cd6b | 684 | scm_list_2 (scm_strerror (scm_from_int (en)), |
1afff620 | 685 | object), |
e0c08f17 | 686 | en); |
3d8d56df | 687 | } |
02b754d3 | 688 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 689 | } |
1bbd0b84 | 690 | #undef FUNC_NAME |
0f2d19dd | 691 | |
0f2d19dd JB |
692 | \f |
693 | /* {Modifying Directories} | |
694 | */ | |
695 | ||
82893676 | 696 | #ifdef HAVE_LINK |
a1ec6916 | 697 | SCM_DEFINE (scm_link, "link", 2, 0, 0, |
1bbd0b84 | 698 | (SCM oldpath, SCM newpath), |
6d36532c GH |
699 | "Creates a new name @var{newpath} in the file system for the\n" |
700 | "file named by @var{oldpath}. If @var{oldpath} is a symbolic\n" | |
701 | "link, the link may or may not be followed depending on the\n" | |
702 | "system.") | |
1bbd0b84 | 703 | #define FUNC_NAME s_scm_link |
0f2d19dd JB |
704 | { |
705 | int val; | |
02b754d3 | 706 | |
1299a0f1 MV |
707 | STRING2_SYSCALL (oldpath, c_oldpath, |
708 | newpath, c_newpath, | |
709 | val = link (c_oldpath, c_newpath)); | |
02b754d3 | 710 | if (val != 0) |
1bbd0b84 | 711 | SCM_SYSERROR; |
02b754d3 | 712 | return SCM_UNSPECIFIED; |
0f2d19dd | 713 | } |
1bbd0b84 | 714 | #undef FUNC_NAME |
82893676 | 715 | #endif /* HAVE_LINK */ |
0f2d19dd | 716 | |
1299a0f1 MV |
717 | #ifdef HAVE_RENAME |
718 | #define my_rename rename | |
719 | #else | |
720 | static int | |
721 | my_rename (const char *oldname, const char *newname) | |
722 | { | |
723 | int rv; | |
0f2d19dd | 724 | |
1299a0f1 MV |
725 | SCM_SYSCALL (rv = link (oldname, newname)); |
726 | if (rv == 0) | |
727 | { | |
728 | SCM_SYSCALL (rv = unlink (oldname)); | |
729 | if (rv != 0) | |
730 | /* unlink failed. remove new name */ | |
731 | SCM_SYSCALL (unlink (newname)); | |
732 | } | |
733 | return rv; | |
734 | } | |
735 | #endif | |
0f2d19dd | 736 | |
a1ec6916 | 737 | SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, |
1bbd0b84 | 738 | (SCM oldname, SCM newname), |
6d36532c | 739 | "Renames the file specified by @var{oldname} to @var{newname}.\n" |
d3818c29 | 740 | "The return value is unspecified.") |
1bbd0b84 | 741 | #define FUNC_NAME s_scm_rename |
0f2d19dd JB |
742 | { |
743 | int rv; | |
1299a0f1 MV |
744 | |
745 | STRING2_SYSCALL (oldname, c_oldname, | |
746 | newname, c_newname, | |
747 | rv = my_rename (c_oldname, c_newname)); | |
02b754d3 | 748 | if (rv != 0) |
1bbd0b84 | 749 | SCM_SYSERROR; |
02b754d3 | 750 | return SCM_UNSPECIFIED; |
0f2d19dd | 751 | } |
1bbd0b84 | 752 | #undef FUNC_NAME |
0f2d19dd JB |
753 | |
754 | ||
3b3b36dd | 755 | SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, |
1bbd0b84 | 756 | (SCM str), |
d3818c29 | 757 | "Deletes (or \"unlinks\") the file specified by @var{path}.") |
1bbd0b84 | 758 | #define FUNC_NAME s_scm_delete_file |
2f3ed1ba JB |
759 | { |
760 | int ans; | |
1299a0f1 | 761 | STRING_SYSCALL (str, c_str, ans = unlink (c_str)); |
2f3ed1ba | 762 | if (ans != 0) |
1bbd0b84 | 763 | SCM_SYSERROR; |
2f3ed1ba JB |
764 | return SCM_UNSPECIFIED; |
765 | } | |
1bbd0b84 | 766 | #undef FUNC_NAME |
2f3ed1ba | 767 | |
f25f761d | 768 | #ifdef HAVE_MKDIR |
a1ec6916 | 769 | SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0, |
1bbd0b84 | 770 | (SCM path, SCM mode), |
d3818c29 MD |
771 | "Create a new directory named by @var{path}. If @var{mode} is omitted\n" |
772 | "then the permissions of the directory file are set using the current\n" | |
773 | "umask. Otherwise they are set to the decimal value specified with\n" | |
774 | "@var{mode}. The return value is unspecified.") | |
1bbd0b84 | 775 | #define FUNC_NAME s_scm_mkdir |
0f2d19dd | 776 | { |
0f2d19dd JB |
777 | int rv; |
778 | mode_t mask; | |
1299a0f1 | 779 | |
0f2d19dd JB |
780 | if (SCM_UNBNDP (mode)) |
781 | { | |
782 | mask = umask (0); | |
783 | umask (mask); | |
1299a0f1 | 784 | STRING_SYSCALL (path, c_path, rv = mkdir (c_path, 0777 ^ mask)); |
0f2d19dd JB |
785 | } |
786 | else | |
787 | { | |
1299a0f1 | 788 | STRING_SYSCALL (path, c_path, rv = mkdir (c_path, scm_to_uint (mode))); |
0f2d19dd | 789 | } |
02b754d3 | 790 | if (rv != 0) |
1bbd0b84 | 791 | SCM_SYSERROR; |
02b754d3 | 792 | return SCM_UNSPECIFIED; |
0f2d19dd | 793 | } |
1bbd0b84 | 794 | #undef FUNC_NAME |
f25f761d | 795 | #endif /* HAVE_MKDIR */ |
0f2d19dd | 796 | |
f25f761d | 797 | #ifdef HAVE_RMDIR |
a1ec6916 | 798 | SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0, |
1bbd0b84 | 799 | (SCM path), |
d3818c29 MD |
800 | "Remove the existing directory named by @var{path}. The directory must\n" |
801 | "be empty for this to succeed. The return value is unspecified.") | |
1bbd0b84 | 802 | #define FUNC_NAME s_scm_rmdir |
0f2d19dd | 803 | { |
0f2d19dd | 804 | int val; |
02b754d3 | 805 | |
1299a0f1 | 806 | STRING_SYSCALL (path, c_path, val = rmdir (c_path)); |
02b754d3 | 807 | if (val != 0) |
1bbd0b84 | 808 | SCM_SYSERROR; |
02b754d3 | 809 | return SCM_UNSPECIFIED; |
0f2d19dd | 810 | } |
1bbd0b84 | 811 | #undef FUNC_NAME |
f25f761d | 812 | #endif |
0f2d19dd JB |
813 | |
814 | \f | |
30ea841d | 815 | |
0f2d19dd JB |
816 | /* {Examining Directories} |
817 | */ | |
818 | ||
92c2555f | 819 | scm_t_bits scm_tc16_dir; |
0f2d19dd | 820 | |
30ea841d | 821 | |
a1ec6916 | 822 | SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0, |
1bbd0b84 | 823 | (SCM obj), |
1e6808ea MG |
824 | "Return a boolean indicating whether @var{object} is a directory\n" |
825 | "stream as returned by @code{opendir}.") | |
1bbd0b84 | 826 | #define FUNC_NAME s_scm_directory_stream_p |
77242ff9 | 827 | { |
7888309b | 828 | return scm_from_bool (SCM_DIRP (obj)); |
77242ff9 | 829 | } |
1bbd0b84 | 830 | #undef FUNC_NAME |
77242ff9 | 831 | |
30ea841d | 832 | |
a1ec6916 | 833 | SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0, |
1bbd0b84 | 834 | (SCM dirname), |
d3818c29 MD |
835 | "Open the directory specified by @var{path} and return a directory\n" |
836 | "stream.") | |
1bbd0b84 | 837 | #define FUNC_NAME s_scm_opendir |
0f2d19dd JB |
838 | { |
839 | DIR *ds; | |
1299a0f1 | 840 | STRING_SYSCALL (dirname, c_dirname, ds = opendir (c_dirname)); |
02b754d3 | 841 | if (ds == NULL) |
1bbd0b84 | 842 | SCM_SYSERROR; |
30ea841d | 843 | SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_DIR_FLAG_OPEN, ds); |
0f2d19dd | 844 | } |
1bbd0b84 | 845 | #undef FUNC_NAME |
0f2d19dd JB |
846 | |
847 | ||
9be808d8 KR |
848 | /* FIXME: The glibc manual has a portability note that readdir_r may not |
849 | null-terminate its return string. The circumstances outlined for this | |
2b829bbb KR |
850 | are not clear, nor is it clear what should be done about it. Lets use |
851 | NAMLEN and worry about what else should be done if/when someone can | |
852 | figure it out. */ | |
9be808d8 | 853 | |
a1ec6916 | 854 | SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0, |
1bbd0b84 | 855 | (SCM port), |
d3818c29 MD |
856 | "Return (as a string) the next directory entry from the directory stream\n" |
857 | "@var{stream}. If there is no remaining entry to be read then the\n" | |
858 | "end of file object is returned.") | |
1bbd0b84 | 859 | #define FUNC_NAME s_scm_readdir |
0f2d19dd | 860 | { |
2b829bbb | 861 | struct dirent_or_dirent64 *rdent; |
30ea841d DH |
862 | |
863 | SCM_VALIDATE_DIR (1, port); | |
864 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 865 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 866 | |
9be808d8 | 867 | #if HAVE_READDIR_R |
2b829bbb KR |
868 | /* As noted in the glibc manual, on various systems (such as Solaris) the |
869 | d_name[] field is only 1 char and you're expected to size the dirent | |
870 | buffer for readdir_r based on NAME_MAX. The SCM_MAX expressions below | |
871 | effectively give either sizeof(d_name) or NAME_MAX+1, whichever is | |
872 | bigger. | |
873 | ||
874 | On solaris 10 there's no NAME_MAX constant, it's necessary to use | |
875 | pathconf(). We prefer NAME_MAX though, since it should be a constant | |
876 | and will therefore save a system call. We also prefer it since dirfd() | |
877 | is not available everywhere. | |
878 | ||
879 | An alternative to dirfd() would be to open() the directory and then use | |
880 | fdopendir(), if the latter is available. That'd let us hold the fd | |
881 | somewhere in the smob, or just the dirent size calculated once. */ | |
882 | { | |
883 | struct dirent_or_dirent64 de; /* just for sizeof */ | |
884 | DIR *ds = (DIR *) SCM_CELL_WORD_1 (port); | |
885 | size_t namlen; | |
886 | #ifdef NAME_MAX | |
887 | char buf [SCM_MAX (sizeof (de), | |
888 | sizeof (de) - sizeof (de.d_name) + NAME_MAX + 1)]; | |
9be808d8 | 889 | #else |
2b829bbb KR |
890 | char *buf; |
891 | long name_max = fpathconf (dirfd (ds), _PC_NAME_MAX); | |
892 | if (name_max == -1) | |
893 | SCM_SYSERROR; | |
894 | buf = alloca (SCM_MAX (sizeof (de), | |
895 | sizeof (de) - sizeof (de.d_name) + name_max + 1)); | |
9be808d8 | 896 | #endif |
2b829bbb KR |
897 | |
898 | errno = 0; | |
899 | SCM_SYSCALL (readdir_r_or_readdir64_r (ds, (struct dirent_or_dirent64 *) buf, &rdent)); | |
9be808d8 KR |
900 | if (errno != 0) |
901 | SCM_SYSERROR; | |
2b829bbb KR |
902 | if (! rdent) |
903 | return SCM_EOF_VAL; | |
904 | ||
905 | namlen = NAMLEN (rdent); | |
30ea841d | 906 | |
cc95e00a | 907 | return (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent)) |
9be808d8 KR |
908 | : SCM_EOF_VAL); |
909 | } | |
2b829bbb KR |
910 | #else |
911 | { | |
912 | SCM ret; | |
913 | scm_dynwind_begin (0); | |
914 | scm_i_dynwind_pthread_mutex_lock (&scm_i_misc_mutex); | |
915 | ||
916 | errno = 0; | |
917 | SCM_SYSCALL (rdent = readdir_or_readdir64 ((DIR *) SCM_CELL_WORD_1 (port))); | |
918 | if (errno != 0) | |
919 | SCM_SYSERROR; | |
920 | ||
921 | ret = (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent)) | |
922 | : SCM_EOF_VAL); | |
923 | ||
924 | scm_dynwind_end (); | |
925 | return ret; | |
926 | } | |
927 | #endif | |
0f2d19dd | 928 | } |
1bbd0b84 | 929 | #undef FUNC_NAME |
0f2d19dd JB |
930 | |
931 | ||
a1ec6916 | 932 | SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0, |
1bbd0b84 | 933 | (SCM port), |
d3818c29 MD |
934 | "Reset the directory port @var{stream} so that the next call to\n" |
935 | "@code{readdir} will return the first directory entry.") | |
1bbd0b84 | 936 | #define FUNC_NAME s_scm_rewinddir |
0f2d19dd | 937 | { |
30ea841d DH |
938 | SCM_VALIDATE_DIR (1, port); |
939 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 940 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 941 | |
4260a7fc | 942 | rewinddir ((DIR *) SCM_CELL_WORD_1 (port)); |
30ea841d | 943 | |
0f2d19dd JB |
944 | return SCM_UNSPECIFIED; |
945 | } | |
1bbd0b84 | 946 | #undef FUNC_NAME |
0f2d19dd JB |
947 | |
948 | ||
a1ec6916 | 949 | SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0, |
1bbd0b84 | 950 | (SCM port), |
d3818c29 MD |
951 | "Close the directory stream @var{stream}.\n" |
952 | "The return value is unspecified.") | |
1bbd0b84 | 953 | #define FUNC_NAME s_scm_closedir |
0f2d19dd | 954 | { |
30ea841d | 955 | SCM_VALIDATE_DIR (1, port); |
02b754d3 | 956 | |
30ea841d | 957 | if (SCM_DIR_OPEN_P (port)) |
0f2d19dd | 958 | { |
30ea841d DH |
959 | int sts; |
960 | ||
961 | SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port))); | |
962 | if (sts != 0) | |
963 | SCM_SYSERROR; | |
964 | ||
965 | SCM_SET_CELL_WORD_0 (port, scm_tc16_dir); | |
0f2d19dd | 966 | } |
30ea841d | 967 | |
02b754d3 | 968 | return SCM_UNSPECIFIED; |
0f2d19dd | 969 | } |
1bbd0b84 | 970 | #undef FUNC_NAME |
0f2d19dd JB |
971 | |
972 | ||
0f2d19dd | 973 | static int |
e81d98ec | 974 | scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
0f2d19dd | 975 | { |
f8b16091 | 976 | scm_puts ("#<", port); |
30ea841d | 977 | if (!SCM_DIR_OPEN_P (exp)) |
f8b16091 | 978 | scm_puts ("closed: ", port); |
0d03da62 | 979 | scm_puts ("directory stream ", port); |
0345e278 | 980 | scm_uintprint (SCM_CELL_WORD_1 (exp), 16, port); |
f8b16091 | 981 | scm_putc ('>', port); |
0f2d19dd JB |
982 | return 1; |
983 | } | |
984 | ||
1cc91f1b | 985 | |
1be6b49c | 986 | static size_t |
1bbd0b84 | 987 | scm_dir_free (SCM p) |
0f2d19dd | 988 | { |
30ea841d | 989 | if (SCM_DIR_OPEN_P (p)) |
4260a7fc | 990 | closedir ((DIR *) SCM_CELL_WORD_1 (p)); |
0f2d19dd JB |
991 | return 0; |
992 | } | |
993 | ||
0f2d19dd JB |
994 | \f |
995 | /* {Navigating Directories} | |
996 | */ | |
997 | ||
998 | ||
a1ec6916 | 999 | SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0, |
1bbd0b84 | 1000 | (SCM str), |
d3818c29 MD |
1001 | "Change the current working directory to @var{path}.\n" |
1002 | "The return value is unspecified.") | |
1bbd0b84 | 1003 | #define FUNC_NAME s_scm_chdir |
0f2d19dd JB |
1004 | { |
1005 | int ans; | |
02b754d3 | 1006 | |
1299a0f1 | 1007 | STRING_SYSCALL (str, c_str, ans = chdir (c_str)); |
02b754d3 | 1008 | if (ans != 0) |
1bbd0b84 | 1009 | SCM_SYSERROR; |
02b754d3 | 1010 | return SCM_UNSPECIFIED; |
0f2d19dd | 1011 | } |
1bbd0b84 | 1012 | #undef FUNC_NAME |
0f2d19dd | 1013 | |
f25f761d | 1014 | #ifdef HAVE_GETCWD |
a1ec6916 | 1015 | SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0, |
1bbd0b84 | 1016 | (), |
1e6808ea | 1017 | "Return the name of the current working directory.") |
1bbd0b84 | 1018 | #define FUNC_NAME s_scm_getcwd |
0f2d19dd | 1019 | { |
0f2d19dd | 1020 | char *rv; |
1be6b49c | 1021 | size_t size = 100; |
0f2d19dd JB |
1022 | char *wd; |
1023 | SCM result; | |
1024 | ||
4c9419ac | 1025 | wd = scm_malloc (size); |
0f2d19dd JB |
1026 | while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE) |
1027 | { | |
4c9419ac | 1028 | free (wd); |
0f2d19dd | 1029 | size *= 2; |
4c9419ac | 1030 | wd = scm_malloc (size); |
0f2d19dd | 1031 | } |
02b754d3 | 1032 | if (rv == 0) |
11e1db06 KR |
1033 | { |
1034 | int save_errno = errno; | |
1035 | free (wd); | |
1036 | errno = save_errno; | |
1037 | SCM_SYSERROR; | |
1038 | } | |
cc95e00a | 1039 | result = scm_from_locale_stringn (wd, strlen (wd)); |
4c9419ac | 1040 | free (wd); |
0f2d19dd | 1041 | return result; |
0f2d19dd | 1042 | } |
1bbd0b84 | 1043 | #undef FUNC_NAME |
f25f761d | 1044 | #endif /* HAVE_GETCWD */ |
0f2d19dd JB |
1045 | |
1046 | \f | |
1047 | ||
28d77376 GH |
1048 | #ifdef HAVE_SELECT |
1049 | ||
1050 | /* check that element is a port or file descriptor. if it's a port | |
1051 | and its buffer is ready for use, add it to the ports_ready list. | |
1052 | otherwise add its file descriptor to *set. the type of list can be | |
1053 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
1054 | SCM_ARG3 for excepts. */ | |
cafc12ff | 1055 | static int |
28d77376 | 1056 | set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos) |
a48a89bc | 1057 | { |
cafc12ff | 1058 | int fd; |
d831b039 | 1059 | |
e11e83f3 | 1060 | if (scm_is_integer (element)) |
28d77376 | 1061 | { |
e11e83f3 | 1062 | fd = scm_to_int (element); |
28d77376 GH |
1063 | } |
1064 | else | |
1065 | { | |
1066 | int use_buf = 0; | |
1067 | ||
1068 | element = SCM_COERCE_OUTPORT (element); | |
1069 | SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select"); | |
1070 | if (pos == SCM_ARG1) | |
1071 | { | |
1072 | /* check whether port has buffered input. */ | |
92c2555f | 1073 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
1074 | |
1075 | if (pt->read_pos < pt->read_end) | |
1076 | use_buf = 1; | |
1077 | } | |
1078 | else if (pos == SCM_ARG2) | |
1079 | { | |
1080 | /* check whether port's output buffer has room. */ | |
92c2555f | 1081 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
1082 | |
1083 | /* > 1 since writing the last byte in the buffer causes flush. */ | |
1084 | if (pt->write_end - pt->write_pos > 1) | |
1085 | use_buf = 1; | |
1086 | } | |
1087 | fd = use_buf ? -1 : SCM_FPORT_FDES (element); | |
1088 | } | |
1089 | if (fd == -1) | |
1090 | *ports_ready = scm_cons (element, *ports_ready); | |
1091 | else | |
1092 | FD_SET (fd, set); | |
cafc12ff | 1093 | return fd; |
a48a89bc | 1094 | } |
1cc91f1b | 1095 | |
28d77376 GH |
1096 | /* check list_or_vec, a list or vector of ports or file descriptors, |
1097 | adding each member to either the ports_ready list (if it's a port | |
1098 | with a usable buffer) or to *set. the kind of list_or_vec can be | |
1099 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
1100 | SCM_ARG3 for excepts. */ | |
cafc12ff | 1101 | static int |
28d77376 | 1102 | fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos) |
0f2d19dd | 1103 | { |
28d77376 GH |
1104 | int max_fd = 0; |
1105 | ||
4057a3e0 | 1106 | if (scm_is_simple_vector (list_or_vec)) |
0f2d19dd | 1107 | { |
4057a3e0 | 1108 | int i = SCM_SIMPLE_VECTOR_LENGTH (list_or_vec); |
a48a89bc | 1109 | |
28d77376 | 1110 | while (--i >= 0) |
a48a89bc | 1111 | { |
4057a3e0 MV |
1112 | int fd = set_element (set, ports_ready, |
1113 | SCM_SIMPLE_VECTOR_REF (list_or_vec, i), pos); | |
28d77376 | 1114 | |
cafc12ff MD |
1115 | if (fd > max_fd) |
1116 | max_fd = fd; | |
a48a89bc GH |
1117 | } |
1118 | } | |
1119 | else | |
1120 | { | |
c96d76b8 | 1121 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
a48a89bc | 1122 | { |
28d77376 GH |
1123 | int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos); |
1124 | ||
cafc12ff MD |
1125 | if (fd > max_fd) |
1126 | max_fd = fd; | |
28d77376 | 1127 | list_or_vec = SCM_CDR (list_or_vec); |
a48a89bc | 1128 | } |
0f2d19dd | 1129 | } |
cafc12ff MD |
1130 | |
1131 | return max_fd; | |
0f2d19dd JB |
1132 | } |
1133 | ||
28d77376 GH |
1134 | /* if element (a file descriptor or port) appears in *set, cons it to |
1135 | list. return list. */ | |
a48a89bc GH |
1136 | static SCM |
1137 | get_element (SELECT_TYPE *set, SCM element, SCM list) | |
1138 | { | |
28d77376 GH |
1139 | int fd; |
1140 | ||
e11e83f3 | 1141 | if (scm_is_integer (element)) |
a48a89bc | 1142 | { |
e11e83f3 | 1143 | fd = scm_to_int (element); |
a48a89bc | 1144 | } |
28d77376 | 1145 | else |
a48a89bc | 1146 | { |
28d77376 | 1147 | fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element)); |
a48a89bc | 1148 | } |
28d77376 GH |
1149 | if (FD_ISSET (fd, set)) |
1150 | list = scm_cons (element, list); | |
a48a89bc GH |
1151 | return list; |
1152 | } | |
1cc91f1b | 1153 | |
28d77376 GH |
1154 | /* construct component of scm_select return value. |
1155 | set: pointer to set of file descriptors found by select to be ready | |
1156 | ports_ready: ports ready due to buffering | |
1157 | list_or_vec: original list/vector handed to scm_select. | |
1158 | the return value is a list/vector of ready ports/file descriptors. | |
1159 | works by finding the objects in list which correspond to members of | |
1160 | *set and appending them to ports_ready. result is converted to a | |
1161 | vector if list_or_vec is a vector. */ | |
0f2d19dd | 1162 | static SCM |
28d77376 | 1163 | retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec) |
0f2d19dd | 1164 | { |
28d77376 | 1165 | SCM answer_list = ports_ready; |
a48a89bc | 1166 | |
4057a3e0 | 1167 | if (scm_is_simple_vector (list_or_vec)) |
0f2d19dd | 1168 | { |
4057a3e0 | 1169 | int i = SCM_SIMPLE_VECTOR_LENGTH (list_or_vec); |
a48a89bc | 1170 | |
28d77376 | 1171 | while (--i >= 0) |
0f2d19dd | 1172 | { |
4057a3e0 MV |
1173 | answer_list = get_element (set, |
1174 | SCM_SIMPLE_VECTOR_REF (list_or_vec, i), | |
1175 | answer_list); | |
0f2d19dd | 1176 | } |
a48a89bc GH |
1177 | return scm_vector (answer_list); |
1178 | } | |
1179 | else | |
1180 | { | |
28d77376 | 1181 | /* list_or_vec must be a list. */ |
c96d76b8 | 1182 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
0f2d19dd | 1183 | { |
28d77376 GH |
1184 | answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list); |
1185 | list_or_vec = SCM_CDR (list_or_vec); | |
0f2d19dd | 1186 | } |
a48a89bc | 1187 | return answer_list; |
0f2d19dd | 1188 | } |
0f2d19dd JB |
1189 | } |
1190 | ||
1bbd0b84 | 1191 | /* Static helper functions above refer to s_scm_select directly as s_select */ |
a1ec6916 | 1192 | SCM_DEFINE (scm_select, "select", 3, 2, 0, |
1bbd0b84 | 1193 | (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs), |
28d77376 | 1194 | "This procedure has a variety of uses: waiting for the ability\n" |
bb2c02f2 | 1195 | "to provide input, accept output, or the existence of\n" |
28d77376 GH |
1196 | "exceptional conditions on a collection of ports or file\n" |
1197 | "descriptors, or waiting for a timeout to occur.\n" | |
1198 | "It also returns if interrupted by a signal.\n\n" | |
1199 | "@var{reads}, @var{writes} and @var{excepts} can be lists or\n" | |
1200 | "vectors, with each member a port or a file descriptor.\n" | |
1201 | "The value returned is a list of three corresponding\n" | |
1202 | "lists or vectors containing only the members which meet the\n" | |
1203 | "specified requirement. The ability of port buffers to\n" | |
1204 | "provide input or accept output is taken into account.\n" | |
1205 | "Ordering of the input lists or vectors is not preserved.\n\n" | |
1206 | "The optional arguments @var{secs} and @var{usecs} specify the\n" | |
1207 | "timeout. Either @var{secs} can be specified alone, as\n" | |
1208 | "either an integer or a real number, or both @var{secs} and\n" | |
1209 | "@var{usecs} can be specified as integers, in which case\n" | |
1210 | "@var{usecs} is an additional timeout expressed in\n" | |
1211 | "microseconds. If @var{secs} is omitted or is @code{#f} then\n" | |
1212 | "select will wait for as long as it takes for one of the other\n" | |
1213 | "conditions to be satisfied.\n\n" | |
1214 | "The scsh version of @code{select} differs as follows:\n" | |
1215 | "Only vectors are accepted for the first three arguments.\n" | |
1216 | "The @var{usecs} argument is not supported.\n" | |
1217 | "Multiple values are returned instead of a list.\n" | |
1218 | "Duplicates in the input vectors appear only once in output.\n" | |
9401323e | 1219 | "An additional @code{select!} interface is provided.") |
1bbd0b84 | 1220 | #define FUNC_NAME s_scm_select |
0f2d19dd | 1221 | { |
0f2d19dd | 1222 | struct timeval timeout; |
28d77376 | 1223 | struct timeval * time_ptr; |
0f2d19dd JB |
1224 | SELECT_TYPE read_set; |
1225 | SELECT_TYPE write_set; | |
1226 | SELECT_TYPE except_set; | |
28d77376 GH |
1227 | int read_count; |
1228 | int write_count; | |
1229 | int except_count; | |
1230 | /* these lists accumulate ports which are ready due to buffering. | |
1231 | their file descriptors don't need to be added to the select sets. */ | |
1232 | SCM read_ports_ready = SCM_EOL; | |
1233 | SCM write_ports_ready = SCM_EOL; | |
1234 | int max_fd; | |
1235 | ||
4057a3e0 | 1236 | if (scm_is_simple_vector (reads)) |
28d77376 | 1237 | { |
4057a3e0 | 1238 | read_count = SCM_SIMPLE_VECTOR_LENGTH (reads); |
28d77376 GH |
1239 | } |
1240 | else | |
1241 | { | |
1242 | read_count = scm_ilength (reads); | |
1243 | SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME); | |
1244 | } | |
4057a3e0 | 1245 | if (scm_is_simple_vector (writes)) |
28d77376 | 1246 | { |
4057a3e0 | 1247 | write_count = SCM_SIMPLE_VECTOR_LENGTH (writes); |
28d77376 GH |
1248 | } |
1249 | else | |
1250 | { | |
1251 | write_count = scm_ilength (writes); | |
1252 | SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME); | |
1253 | } | |
4057a3e0 | 1254 | if (scm_is_simple_vector (excepts)) |
28d77376 | 1255 | { |
4057a3e0 | 1256 | except_count = SCM_SIMPLE_VECTOR_LENGTH (excepts); |
28d77376 GH |
1257 | } |
1258 | else | |
1259 | { | |
1260 | except_count = scm_ilength (excepts); | |
1261 | SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME); | |
1262 | } | |
0f2d19dd JB |
1263 | |
1264 | FD_ZERO (&read_set); | |
1265 | FD_ZERO (&write_set); | |
1266 | FD_ZERO (&except_set); | |
1267 | ||
28d77376 GH |
1268 | max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1); |
1269 | ||
1270 | { | |
1271 | int write_max = fill_select_type (&write_set, &write_ports_ready, | |
1272 | writes, SCM_ARG2); | |
1273 | int except_max = fill_select_type (&except_set, NULL, | |
1274 | excepts, SCM_ARG3); | |
1275 | ||
1276 | if (write_max > max_fd) | |
1277 | max_fd = write_max; | |
1278 | if (except_max > max_fd) | |
1279 | max_fd = except_max; | |
1280 | } | |
0f2d19dd | 1281 | |
ae1b098b GH |
1282 | /* if there's a port with a ready buffer, don't block, just |
1283 | check for ready file descriptors. */ | |
d2e53ed6 | 1284 | if (!scm_is_null (read_ports_ready) || !scm_is_null (write_ports_ready)) |
ae1b098b GH |
1285 | { |
1286 | timeout.tv_sec = 0; | |
1287 | timeout.tv_usec = 0; | |
1288 | time_ptr = &timeout; | |
1289 | } | |
7888309b | 1290 | else if (SCM_UNBNDP (secs) || scm_is_false (secs)) |
28d77376 | 1291 | time_ptr = 0; |
0f2d19dd JB |
1292 | else |
1293 | { | |
a55c2b68 | 1294 | if (scm_is_unsigned_integer (secs, 0, ULONG_MAX)) |
a48a89bc | 1295 | { |
a55c2b68 | 1296 | timeout.tv_sec = scm_to_ulong (secs); |
a48a89bc GH |
1297 | if (SCM_UNBNDP (usecs)) |
1298 | timeout.tv_usec = 0; | |
1299 | else | |
a55c2b68 | 1300 | timeout.tv_usec = scm_to_long (usecs); |
a48a89bc | 1301 | } |
0f2d19dd | 1302 | else |
a48a89bc | 1303 | { |
d9a67fc4 | 1304 | double fl = scm_to_double (secs); |
a48a89bc GH |
1305 | |
1306 | if (!SCM_UNBNDP (usecs)) | |
c1bfcf60 | 1307 | SCM_WRONG_TYPE_ARG (4, secs); |
a48a89bc | 1308 | if (fl > LONG_MAX) |
c1bfcf60 | 1309 | SCM_OUT_OF_RANGE (4, secs); |
a48a89bc GH |
1310 | timeout.tv_sec = (long) fl; |
1311 | timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000); | |
1312 | } | |
28d77376 | 1313 | time_ptr = &timeout; |
0f2d19dd JB |
1314 | } |
1315 | ||
28d77376 | 1316 | { |
9de87eea MV |
1317 | int rv = scm_std_select (max_fd + 1, |
1318 | &read_set, &write_set, &except_set, | |
1319 | time_ptr); | |
28d77376 GH |
1320 | if (rv < 0) |
1321 | SCM_SYSERROR; | |
1322 | } | |
1afff620 KN |
1323 | return scm_list_3 (retrieve_select_type (&read_set, read_ports_ready, reads), |
1324 | retrieve_select_type (&write_set, write_ports_ready, writes), | |
1325 | retrieve_select_type (&except_set, SCM_EOL, excepts)); | |
0f2d19dd | 1326 | } |
1bbd0b84 | 1327 | #undef FUNC_NAME |
f25f761d | 1328 | #endif /* HAVE_SELECT */ |
0f2d19dd JB |
1329 | |
1330 | \f | |
4c1feaa5 | 1331 | |
82893676 | 1332 | #ifdef HAVE_FCNTL |
af45e3b0 | 1333 | SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0, |
1bbd0b84 | 1334 | (SCM object, SCM cmd, SCM value), |
d3818c29 MD |
1335 | "Apply @var{command} to the specified file descriptor or the underlying\n" |
1336 | "file descriptor of the specified port. @var{value} is an optional\n" | |
1337 | "integer argument.\n\n" | |
1338 | "Values for @var{command} are:\n\n" | |
1339 | "@table @code\n" | |
1340 | "@item F_DUPFD\n" | |
1341 | "Duplicate a file descriptor\n" | |
1342 | "@item F_GETFD\n" | |
1343 | "Get flags associated with the file descriptor.\n" | |
1344 | "@item F_SETFD\n" | |
1345 | "Set flags associated with the file descriptor to @var{value}.\n" | |
1346 | "@item F_GETFL\n" | |
1347 | "Get flags associated with the open file.\n" | |
1348 | "@item F_SETFL\n" | |
1349 | "Set flags associated with the open file to @var{value}\n" | |
1350 | "@item F_GETOWN\n" | |
1351 | "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n" | |
1352 | "@item F_SETOWN\n" | |
1353 | "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n" | |
1354 | "@item FD_CLOEXEC\n" | |
55892d87 NJ |
1355 | "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n" |
1356 | "@code{F_SETFL}.\n" | |
a3c8b9fc | 1357 | "@end table") |
1bbd0b84 | 1358 | #define FUNC_NAME s_scm_fcntl |
4c1feaa5 JB |
1359 | { |
1360 | int rv; | |
6afcd3b2 GH |
1361 | int fdes; |
1362 | int ivalue; | |
4c1feaa5 | 1363 | |
78446828 MV |
1364 | object = SCM_COERCE_OUTPORT (object); |
1365 | ||
0c95b57d | 1366 | if (SCM_OPFPORTP (object)) |
77a76b64 | 1367 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 | 1368 | else |
a55c2b68 | 1369 | fdes = scm_to_int (object); |
af45e3b0 | 1370 | |
a55c2b68 | 1371 | if (SCM_UNBNDP (value)) |
6afcd3b2 | 1372 | ivalue = 0; |
a55c2b68 MV |
1373 | else |
1374 | ivalue = scm_to_int (value); | |
af45e3b0 | 1375 | |
a55c2b68 | 1376 | SCM_SYSCALL (rv = fcntl (fdes, scm_to_int (cmd), ivalue)); |
77a76b64 | 1377 | if (rv == -1) |
1bbd0b84 | 1378 | SCM_SYSERROR; |
a55c2b68 | 1379 | return scm_from_int (rv); |
4c1feaa5 | 1380 | } |
1bbd0b84 | 1381 | #undef FUNC_NAME |
82893676 | 1382 | #endif /* HAVE_FCNTL */ |
6afcd3b2 | 1383 | |
a1ec6916 | 1384 | SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0, |
1bbd0b84 | 1385 | (SCM object), |
d3818c29 MD |
1386 | "Copies any unwritten data for the specified output file descriptor to disk.\n" |
1387 | "If @var{port/fd} is a port, its buffer is flushed before the underlying\n" | |
1388 | "file descriptor is fsync'd.\n" | |
1389 | "The return value is unspecified.") | |
1bbd0b84 | 1390 | #define FUNC_NAME s_scm_fsync |
6afcd3b2 GH |
1391 | { |
1392 | int fdes; | |
1393 | ||
78446828 MV |
1394 | object = SCM_COERCE_OUTPORT (object); |
1395 | ||
0c95b57d | 1396 | if (SCM_OPFPORTP (object)) |
6afcd3b2 | 1397 | { |
affc96b5 | 1398 | scm_flush (object); |
77a76b64 | 1399 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1400 | } |
1401 | else | |
a55c2b68 MV |
1402 | fdes = scm_to_int (object); |
1403 | ||
6afcd3b2 | 1404 | if (fsync (fdes) == -1) |
1bbd0b84 | 1405 | SCM_SYSERROR; |
6afcd3b2 GH |
1406 | return SCM_UNSPECIFIED; |
1407 | } | |
1bbd0b84 | 1408 | #undef FUNC_NAME |
0f2d19dd | 1409 | |
f25f761d | 1410 | #ifdef HAVE_SYMLINK |
a1ec6916 | 1411 | SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0, |
1bbd0b84 | 1412 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
1413 | "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n" |
1414 | "@var{path-from}. The return value is unspecified.") | |
1bbd0b84 | 1415 | #define FUNC_NAME s_scm_symlink |
0f2d19dd | 1416 | { |
0f2d19dd | 1417 | int val; |
02b754d3 | 1418 | |
1299a0f1 MV |
1419 | STRING2_SYSCALL (oldpath, c_oldpath, |
1420 | newpath, c_newpath, | |
1421 | val = symlink (c_oldpath, c_newpath)); | |
02b754d3 | 1422 | if (val != 0) |
1bbd0b84 | 1423 | SCM_SYSERROR; |
02b754d3 | 1424 | return SCM_UNSPECIFIED; |
0f2d19dd | 1425 | } |
1bbd0b84 | 1426 | #undef FUNC_NAME |
f25f761d | 1427 | #endif /* HAVE_SYMLINK */ |
0f2d19dd | 1428 | |
f25f761d | 1429 | #ifdef HAVE_READLINK |
a1ec6916 | 1430 | SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0, |
1bbd0b84 | 1431 | (SCM path), |
1e6808ea MG |
1432 | "Return the value of the symbolic link named by @var{path} (a\n" |
1433 | "string), i.e., the file that the link points to.") | |
1bbd0b84 | 1434 | #define FUNC_NAME s_scm_readlink |
0f2d19dd | 1435 | { |
6a738a25 JB |
1436 | int rv; |
1437 | int size = 100; | |
0f2d19dd JB |
1438 | char *buf; |
1439 | SCM result; | |
1299a0f1 MV |
1440 | char *c_path; |
1441 | ||
661ae7ab | 1442 | scm_dynwind_begin (0); |
1299a0f1 MV |
1443 | |
1444 | c_path = scm_to_locale_string (path); | |
661ae7ab | 1445 | scm_dynwind_free (c_path); |
1299a0f1 | 1446 | |
4c9419ac | 1447 | buf = scm_malloc (size); |
1299a0f1 MV |
1448 | |
1449 | while ((rv = readlink (c_path, buf, size)) == size) | |
0f2d19dd | 1450 | { |
4c9419ac | 1451 | free (buf); |
0f2d19dd | 1452 | size *= 2; |
4c9419ac | 1453 | buf = scm_malloc (size); |
0f2d19dd | 1454 | } |
02b754d3 | 1455 | if (rv == -1) |
11e1db06 KR |
1456 | { |
1457 | int save_errno = errno; | |
1458 | free (buf); | |
1459 | errno = save_errno; | |
1460 | SCM_SYSERROR; | |
1461 | } | |
1299a0f1 MV |
1462 | result = scm_take_locale_stringn (buf, rv); |
1463 | ||
661ae7ab | 1464 | scm_dynwind_end (); |
0f2d19dd | 1465 | return result; |
0f2d19dd | 1466 | } |
1bbd0b84 | 1467 | #undef FUNC_NAME |
f25f761d | 1468 | #endif /* HAVE_READLINK */ |
0f2d19dd | 1469 | |
f25f761d | 1470 | #ifdef HAVE_LSTAT |
a1ec6916 | 1471 | SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0, |
1bbd0b84 | 1472 | (SCM str), |
d3818c29 | 1473 | "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n" |
9401323e | 1474 | "it will return information about a symbolic link itself, not the\n" |
d3818c29 | 1475 | "file it points to. @var{path} must be a string.") |
1bbd0b84 | 1476 | #define FUNC_NAME s_scm_lstat |
0f2d19dd | 1477 | { |
02b754d3 | 1478 | int rv; |
2b829bbb | 1479 | struct stat_or_stat64 stat_temp; |
02b754d3 | 1480 | |
2b829bbb | 1481 | STRING_SYSCALL (str, c_str, rv = lstat_or_lstat64 (c_str, &stat_temp)); |
02b754d3 | 1482 | if (rv != 0) |
3d8d56df GH |
1483 | { |
1484 | int en = errno; | |
1485 | ||
5d2d2ffc | 1486 | SCM_SYSERROR_MSG ("~A: ~S", |
3572cd6b | 1487 | scm_list_2 (scm_strerror (scm_from_int (en)), str), |
e0c08f17 | 1488 | en); |
3d8d56df | 1489 | } |
1299a0f1 | 1490 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 1491 | } |
1bbd0b84 | 1492 | #undef FUNC_NAME |
f25f761d | 1493 | #endif /* HAVE_LSTAT */ |
0f2d19dd | 1494 | |
a1ec6916 | 1495 | SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0, |
1bbd0b84 | 1496 | (SCM oldfile, SCM newfile), |
d3818c29 MD |
1497 | "Copy the file specified by @var{path-from} to @var{path-to}.\n" |
1498 | "The return value is unspecified.") | |
1bbd0b84 | 1499 | #define FUNC_NAME s_scm_copy_file |
0f2d19dd | 1500 | { |
1299a0f1 | 1501 | char *c_oldfile, *c_newfile; |
0f2d19dd | 1502 | int oldfd, newfd; |
37eb673b | 1503 | int n, rv; |
77a76b64 | 1504 | char buf[BUFSIZ]; |
2b829bbb | 1505 | struct stat_or_stat64 oldstat; |
0f2d19dd | 1506 | |
661ae7ab | 1507 | scm_dynwind_begin (0); |
1299a0f1 MV |
1508 | |
1509 | c_oldfile = scm_to_locale_string (oldfile); | |
661ae7ab | 1510 | scm_dynwind_free (c_oldfile); |
1299a0f1 | 1511 | c_newfile = scm_to_locale_string (newfile); |
661ae7ab | 1512 | scm_dynwind_free (c_newfile); |
37eb673b | 1513 | |
2b829bbb | 1514 | oldfd = open_or_open64 (c_oldfile, O_RDONLY); |
0f2d19dd | 1515 | if (oldfd == -1) |
1bbd0b84 | 1516 | SCM_SYSERROR; |
02b754d3 | 1517 | |
37eb673b KR |
1518 | #ifdef __MINGW32__ |
1519 | SCM_SYSCALL (rv = fstat_Win32 (oldfd, &oldstat)); | |
1520 | #else | |
2b829bbb | 1521 | SCM_SYSCALL (rv = fstat_or_fstat64 (oldfd, &oldstat)); |
37eb673b KR |
1522 | #endif |
1523 | if (rv == -1) | |
1524 | goto err_close_oldfd; | |
1525 | ||
02b754d3 | 1526 | /* use POSIX flags instead of 07777?. */ |
2b829bbb KR |
1527 | newfd = open_or_open64 (c_newfile, O_WRONLY | O_CREAT | O_TRUNC, |
1528 | oldstat.st_mode & 07777); | |
0f2d19dd | 1529 | if (newfd == -1) |
01046395 | 1530 | { |
37eb673b | 1531 | err_close_oldfd: |
01046395 KR |
1532 | close (oldfd); |
1533 | SCM_SYSERROR; | |
1534 | } | |
02b754d3 | 1535 | |
0f2d19dd JB |
1536 | while ((n = read (oldfd, buf, sizeof buf)) > 0) |
1537 | if (write (newfd, buf, n) != n) | |
1538 | { | |
1539 | close (oldfd); | |
1540 | close (newfd); | |
1bbd0b84 | 1541 | SCM_SYSERROR; |
0f2d19dd JB |
1542 | } |
1543 | close (oldfd); | |
1544 | if (close (newfd) == -1) | |
1bbd0b84 | 1545 | SCM_SYSERROR; |
1299a0f1 | 1546 | |
661ae7ab | 1547 | scm_dynwind_end (); |
02b754d3 | 1548 | return SCM_UNSPECIFIED; |
0f2d19dd | 1549 | } |
1bbd0b84 | 1550 | #undef FUNC_NAME |
0f2d19dd JB |
1551 | |
1552 | \f | |
6a738a25 JB |
1553 | /* Filename manipulation */ |
1554 | ||
1555 | SCM scm_dot_string; | |
1556 | ||
a1ec6916 | 1557 | SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0, |
1bbd0b84 | 1558 | (SCM filename), |
fa6a543f MG |
1559 | "Return the directory name component of the file name\n" |
1560 | "@var{filename}. If @var{filename} does not contain a directory\n" | |
1561 | "component, @code{.} is returned.") | |
1bbd0b84 | 1562 | #define FUNC_NAME s_scm_dirname |
6a738a25 | 1563 | { |
cc95e00a | 1564 | const char *s; |
9fd38a3d DH |
1565 | long int i; |
1566 | unsigned long int len; | |
1567 | ||
34d19ef6 | 1568 | SCM_VALIDATE_STRING (1, filename); |
9fd38a3d | 1569 | |
cc95e00a MV |
1570 | s = scm_i_string_chars (filename); |
1571 | len = scm_i_string_length (filename); | |
9fd38a3d | 1572 | |
6a738a25 | 1573 | i = len - 1; |
82893676 MG |
1574 | #ifdef __MINGW32__ |
1575 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; | |
e0c73a1c | 1576 | while (i >= 0 && (s[i] != '/' && s[i] != '\\')) --i; |
82893676 MG |
1577 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; |
1578 | #else | |
6a738a25 JB |
1579 | while (i >= 0 && s[i] == '/') --i; |
1580 | while (i >= 0 && s[i] != '/') --i; | |
1581 | while (i >= 0 && s[i] == '/') --i; | |
82893676 | 1582 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1583 | if (i < 0) |
1584 | { | |
82893676 MG |
1585 | #ifdef __MINGW32__ |
1586 | if (len > 0 && (s[0] == '/' || s[0] == '\\')) | |
1587 | #else | |
6a738a25 | 1588 | if (len > 0 && s[0] == '/') |
82893676 | 1589 | #endif /* ndef __MINGW32__ */ |
cc95e00a | 1590 | return scm_c_substring (filename, 0, 1); |
6a738a25 JB |
1591 | else |
1592 | return scm_dot_string; | |
1593 | } | |
1594 | else | |
cc95e00a | 1595 | return scm_c_substring (filename, 0, i + 1); |
6a738a25 | 1596 | } |
1bbd0b84 | 1597 | #undef FUNC_NAME |
6a738a25 | 1598 | |
a1ec6916 | 1599 | SCM_DEFINE (scm_basename, "basename", 1, 1, 0, |
1bbd0b84 | 1600 | (SCM filename, SCM suffix), |
fa6a543f MG |
1601 | "Return the base name of the file name @var{filename}. The\n" |
1602 | "base name is the file name without any directory components.\n" | |
bb2c02f2 | 1603 | "If @var{suffix} is provided, and is equal to the end of\n" |
fa6a543f | 1604 | "@var{basename}, it is removed also.") |
1bbd0b84 | 1605 | #define FUNC_NAME s_scm_basename |
6a738a25 | 1606 | { |
cc95e00a | 1607 | const char *f, *s = 0; |
6a738a25 | 1608 | int i, j, len, end; |
9fd38a3d | 1609 | |
34d19ef6 | 1610 | SCM_VALIDATE_STRING (1, filename); |
cc95e00a MV |
1611 | f = scm_i_string_chars (filename); |
1612 | len = scm_i_string_length (filename); | |
9fd38a3d | 1613 | |
6a738a25 JB |
1614 | if (SCM_UNBNDP (suffix)) |
1615 | j = -1; | |
1616 | else | |
1617 | { | |
9fd38a3d | 1618 | SCM_VALIDATE_STRING (2, suffix); |
cc95e00a MV |
1619 | s = scm_i_string_chars (suffix); |
1620 | j = scm_i_string_length (suffix) - 1; | |
6a738a25 | 1621 | } |
6a738a25 | 1622 | i = len - 1; |
82893676 MG |
1623 | #ifdef __MINGW32__ |
1624 | while (i >= 0 && (f[i] == '/' || f[i] == '\\')) --i; | |
1625 | #else | |
6a738a25 | 1626 | while (i >= 0 && f[i] == '/') --i; |
82893676 | 1627 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1628 | end = i; |
1629 | while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j; | |
1630 | if (j == -1) | |
1631 | end = i; | |
82893676 | 1632 | #ifdef __MINGW32__ |
2e945bcc | 1633 | while (i >= 0 && f[i] != '/' && f[i] != '\\') --i; |
82893676 | 1634 | #else |
6a738a25 | 1635 | while (i >= 0 && f[i] != '/') --i; |
82893676 | 1636 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1637 | if (i == end) |
1638 | { | |
82893676 | 1639 | #ifdef __MINGW32__ |
2e945bcc | 1640 | if (len > 0 && (f[0] == '/' || f[0] == '\\')) |
82893676 | 1641 | #else |
6a738a25 | 1642 | if (len > 0 && f[0] == '/') |
82893676 | 1643 | #endif /* ndef __MINGW32__ */ |
cc95e00a | 1644 | return scm_c_substring (filename, 0, 1); |
6a738a25 JB |
1645 | else |
1646 | return scm_dot_string; | |
1647 | } | |
1648 | else | |
cc95e00a | 1649 | return scm_c_substring (filename, i+1, end+1); |
6a738a25 | 1650 | } |
1bbd0b84 | 1651 | #undef FUNC_NAME |
6a738a25 JB |
1652 | |
1653 | ||
1654 | ||
1655 | \f | |
1cc91f1b | 1656 | |
0f2d19dd JB |
1657 | void |
1658 | scm_init_filesys () | |
0f2d19dd | 1659 | { |
e841c3e0 KN |
1660 | scm_tc16_dir = scm_make_smob_type ("directory", 0); |
1661 | scm_set_smob_free (scm_tc16_dir, scm_dir_free); | |
1662 | scm_set_smob_print (scm_tc16_dir, scm_dir_print); | |
0f2d19dd | 1663 | |
cc95e00a | 1664 | scm_dot_string = scm_permanent_object (scm_from_locale_string (".")); |
a163dda9 | 1665 | |
3d8d56df | 1666 | #ifdef O_RDONLY |
23d72566 | 1667 | scm_c_define ("O_RDONLY", scm_from_int (O_RDONLY)); |
3d8d56df GH |
1668 | #endif |
1669 | #ifdef O_WRONLY | |
23d72566 | 1670 | scm_c_define ("O_WRONLY", scm_from_int (O_WRONLY)); |
3d8d56df GH |
1671 | #endif |
1672 | #ifdef O_RDWR | |
23d72566 | 1673 | scm_c_define ("O_RDWR", scm_from_int (O_RDWR)); |
3d8d56df GH |
1674 | #endif |
1675 | #ifdef O_CREAT | |
23d72566 | 1676 | scm_c_define ("O_CREAT", scm_from_int (O_CREAT)); |
3d8d56df GH |
1677 | #endif |
1678 | #ifdef O_EXCL | |
23d72566 | 1679 | scm_c_define ("O_EXCL", scm_from_int (O_EXCL)); |
3d8d56df GH |
1680 | #endif |
1681 | #ifdef O_NOCTTY | |
23d72566 | 1682 | scm_c_define ("O_NOCTTY", scm_from_int (O_NOCTTY)); |
3d8d56df GH |
1683 | #endif |
1684 | #ifdef O_TRUNC | |
23d72566 | 1685 | scm_c_define ("O_TRUNC", scm_from_int (O_TRUNC)); |
3d8d56df GH |
1686 | #endif |
1687 | #ifdef O_APPEND | |
23d72566 | 1688 | scm_c_define ("O_APPEND", scm_from_int (O_APPEND)); |
3d8d56df | 1689 | #endif |
6afcd3b2 | 1690 | #ifdef O_NONBLOCK |
23d72566 | 1691 | scm_c_define ("O_NONBLOCK", scm_from_int (O_NONBLOCK)); |
3d8d56df GH |
1692 | #endif |
1693 | #ifdef O_NDELAY | |
23d72566 | 1694 | scm_c_define ("O_NDELAY", scm_from_int (O_NDELAY)); |
3d8d56df GH |
1695 | #endif |
1696 | #ifdef O_SYNC | |
23d72566 | 1697 | scm_c_define ("O_SYNC", scm_from_int (O_SYNC)); |
3d8d56df | 1698 | #endif |
23f2b9a3 | 1699 | #ifdef O_LARGEFILE |
23d72566 | 1700 | scm_c_define ("O_LARGEFILE", scm_from_int (O_LARGEFILE)); |
23f2b9a3 | 1701 | #endif |
3d8d56df | 1702 | |
4c1feaa5 | 1703 | #ifdef F_DUPFD |
23d72566 | 1704 | scm_c_define ("F_DUPFD", scm_from_int (F_DUPFD)); |
4c1feaa5 JB |
1705 | #endif |
1706 | #ifdef F_GETFD | |
23d72566 | 1707 | scm_c_define ("F_GETFD", scm_from_int (F_GETFD)); |
4c1feaa5 JB |
1708 | #endif |
1709 | #ifdef F_SETFD | |
23d72566 | 1710 | scm_c_define ("F_SETFD", scm_from_int (F_SETFD)); |
4c1feaa5 JB |
1711 | #endif |
1712 | #ifdef F_GETFL | |
23d72566 | 1713 | scm_c_define ("F_GETFL", scm_from_int (F_GETFL)); |
4c1feaa5 JB |
1714 | #endif |
1715 | #ifdef F_SETFL | |
23d72566 | 1716 | scm_c_define ("F_SETFL", scm_from_int (F_SETFL)); |
4c1feaa5 JB |
1717 | #endif |
1718 | #ifdef F_GETOWN | |
23d72566 | 1719 | scm_c_define ("F_GETOWN", scm_from_int (F_GETOWN)); |
4c1feaa5 JB |
1720 | #endif |
1721 | #ifdef F_SETOWN | |
23d72566 | 1722 | scm_c_define ("F_SETOWN", scm_from_int (F_SETOWN)); |
4c1feaa5 JB |
1723 | #endif |
1724 | #ifdef FD_CLOEXEC | |
23d72566 | 1725 | scm_c_define ("FD_CLOEXEC", scm_from_int (FD_CLOEXEC)); |
bd9e24b3 | 1726 | #endif |
3d8d56df | 1727 | |
a0599745 | 1728 | #include "libguile/filesys.x" |
0f2d19dd | 1729 | } |
89e00824 ML |
1730 | |
1731 | /* | |
1732 | Local Variables: | |
1733 | c-file-style: "gnu" | |
1734 | End: | |
1735 | */ |