Commit | Line | Data |
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3d7f708f | 1 | /* Copyright (C) 1996,1997,1998,1999,2000,2001, 2002 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 |
83079454 RB |
20 | #if HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
23 | ||
3d8d56df | 24 | #include <stdio.h> |
e6e2e95a MD |
25 | #include <errno.h> |
26 | ||
a0599745 MD |
27 | #include "libguile/_scm.h" |
28 | #include "libguile/smob.h" | |
29 | #include "libguile/feature.h" | |
30 | #include "libguile/fports.h" | |
31 | #include "libguile/iselect.h" | |
32 | #include "libguile/strings.h" | |
33 | #include "libguile/vectors.h" | |
c96d76b8 | 34 | #include "libguile/lang.h" |
0f2d19dd | 35 | |
a0599745 MD |
36 | #include "libguile/validate.h" |
37 | #include "libguile/filesys.h" | |
def804a3 | 38 | |
0f2d19dd | 39 | \f |
def804a3 JB |
40 | #ifdef HAVE_IO_H |
41 | #include <io.h> | |
42 | #endif | |
43 | ||
e0c73a1c MV |
44 | #ifdef HAVE_DIRECT_H |
45 | #include <direct.h> | |
46 | #endif | |
47 | ||
0f2d19dd JB |
48 | #ifdef TIME_WITH_SYS_TIME |
49 | # include <sys/time.h> | |
50 | # include <time.h> | |
51 | #else | |
52 | # if HAVE_SYS_TIME_H | |
53 | # include <sys/time.h> | |
54 | # else | |
55 | # include <time.h> | |
56 | # endif | |
57 | #endif | |
58 | ||
59 | #ifdef HAVE_UNISTD_H | |
60 | #include <unistd.h> | |
61 | #endif | |
62 | ||
3594582b | 63 | #ifdef LIBC_H_WITH_UNISTD_H |
1f9e2226 JB |
64 | #include <libc.h> |
65 | #endif | |
66 | ||
0f2d19dd JB |
67 | #ifdef HAVE_SYS_SELECT_H |
68 | #include <sys/select.h> | |
69 | #endif | |
70 | ||
1f9e2226 JB |
71 | #ifdef HAVE_STRING_H |
72 | #include <string.h> | |
73 | #endif | |
74 | ||
8cc71382 | 75 | #include <sys/types.h> |
0f2d19dd JB |
76 | #include <sys/stat.h> |
77 | #include <fcntl.h> | |
78 | ||
82893676 | 79 | #ifdef HAVE_PWD_H |
0f2d19dd | 80 | #include <pwd.h> |
82893676 | 81 | #endif |
0f2d19dd JB |
82 | |
83 | ||
e0c73a1c MV |
84 | #if defined (__MINGW32__) || defined (_MSC_VER) || defined (__BORLANDC__) |
85 | # include "win32-dirent.h" | |
86 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
87 | #elif HAVE_DIRENT_H | |
0f2d19dd JB |
88 | # include <dirent.h> |
89 | # define NAMLEN(dirent) strlen((dirent)->d_name) | |
90 | #else | |
91 | # define dirent direct | |
92 | # define NAMLEN(dirent) (dirent)->d_namlen | |
93 | # if HAVE_SYS_NDIR_H | |
94 | # include <sys/ndir.h> | |
95 | # endif | |
96 | # if HAVE_SYS_DIR_H | |
97 | # include <sys/dir.h> | |
98 | # endif | |
99 | # if HAVE_NDIR_H | |
100 | # include <ndir.h> | |
101 | # endif | |
102 | #endif | |
103 | ||
d7b8a21a JB |
104 | /* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */ |
105 | #if defined (S_IFSOCK) && ! defined (S_ISSOCK) | |
106 | #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) | |
107 | #endif | |
82893676 MG |
108 | |
109 | /* The MinGW gcc does not define the S_ISSOCK macro. Any other native Windows | |
110 | compiler like BorlandC or MSVC has none of these macros defined. */ | |
111 | #ifdef __MINGW32__ | |
8f99e3f3 SJ |
112 | |
113 | # ifdef _S_IFIFO | |
114 | # undef _S_IFIFO | |
115 | # endif | |
116 | # ifdef _S_IFCHR | |
117 | # undef _S_IFCHR | |
118 | # endif | |
119 | # ifdef _S_IFBLK | |
120 | # undef _S_IFBLK | |
121 | # endif | |
122 | # ifdef _S_IFDIR | |
123 | # undef _S_IFDIR | |
124 | # endif | |
125 | # ifdef _S_IFREG | |
126 | # undef _S_IFREG | |
127 | # endif | |
128 | # ifdef _S_IFSOCK | |
129 | # undef _S_IFSOCK | |
130 | # endif | |
131 | ||
132 | # define _S_IFIFO 0x1000 /* FIFO */ | |
133 | # define _S_IFCHR 0x2000 /* Character */ | |
134 | # define _S_IFBLK 0x3000 /* Block */ | |
135 | # define _S_IFDIR 0x4000 /* Directory */ | |
136 | # define _S_IFREG 0x8000 /* Regular */ | |
137 | # define _S_IFSOCK 0xC000 /* Socket */ | |
138 | ||
139 | # ifdef S_ISBLK | |
140 | # undef S_ISBLK | |
141 | # endif | |
142 | # ifdef S_ISFIFO | |
143 | # undef S_ISFIFO | |
144 | # endif | |
145 | # ifdef S_ISCHR | |
146 | # undef S_ISCHR | |
147 | # endif | |
148 | # ifdef S_ISDIR | |
149 | # undef S_ISDIR | |
150 | # endif | |
151 | # ifdef S_ISREG | |
152 | # undef S_ISREG | |
153 | # endif | |
154 | # ifdef S_ISSOCK | |
155 | # undef S_ISSOCK | |
156 | # endif | |
157 | ||
158 | # define S_ISBLK(mode) (((mode) & _S_IFMT) == _S_IFBLK) | |
82893676 | 159 | # define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO) |
8f99e3f3 SJ |
160 | # define S_ISCHR(mode) (((mode) & _S_IFMT) == _S_IFCHR) |
161 | # define S_ISDIR(mode) (((mode) & _S_IFMT) == _S_IFDIR) | |
162 | # define S_ISREG(mode) (((mode) & _S_IFMT) == _S_IFREG) | |
163 | # define S_ISSOCK(mode) (((mode) & _S_IFMT) == _S_IFSOCK) | |
164 | ||
165 | #endif /* __MINGW32__ */ | |
82893676 MG |
166 | |
167 | /* Some more definitions for the native Windows port. */ | |
168 | #ifdef __MINGW32__ | |
169 | # define mkdir(path, mode) mkdir (path) | |
170 | # define fsync(fd) _commit (fd) | |
171 | # define fchmod(fd, mode) (-1) | |
172 | #endif /* __MINGW32__ */ | |
0f2d19dd JB |
173 | \f |
174 | ||
0f2d19dd JB |
175 | |
176 | \f | |
177 | ||
178 | /* {Permissions} | |
179 | */ | |
180 | ||
82893676 | 181 | #ifdef HAVE_CHOWN |
a1ec6916 | 182 | SCM_DEFINE (scm_chown, "chown", 3, 0, 0, |
1bbd0b84 | 183 | (SCM object, SCM owner, SCM group), |
d831b039 GH |
184 | "Change the ownership and group of the file referred to by @var{object} to\n" |
185 | "the integer values @var{owner} and @var{group}. @var{object} can be\n" | |
186 | "a string containing a file name or, if the platform\n" | |
187 | "supports fchown, a port or integer file descriptor\n" | |
188 | "which is open on the file. The return value\n" | |
d3818c29 | 189 | "is unspecified.\n\n" |
d831b039 | 190 | "If @var{object} is a symbolic link, either the\n" |
d3818c29 MD |
191 | "ownership of the link or the ownership of the referenced file will be\n" |
192 | "changed depending on the operating system (lchown is\n" | |
193 | "unsupported at present). If @var{owner} or @var{group} is specified\n" | |
194 | "as @code{-1}, then that ID is not changed.") | |
1bbd0b84 | 195 | #define FUNC_NAME s_scm_chown |
0f2d19dd | 196 | { |
6afcd3b2 | 197 | int rv; |
02b754d3 | 198 | |
78446828 MV |
199 | object = SCM_COERCE_OUTPORT (object); |
200 | ||
34d19ef6 HWN |
201 | SCM_VALIDATE_INUM (2, owner); |
202 | SCM_VALIDATE_INUM (3, group); | |
d831b039 | 203 | #ifdef HAVE_FCHOWN |
0c95b57d | 204 | if (SCM_INUMP (object) || (SCM_OPFPORTP (object))) |
6afcd3b2 | 205 | { |
d831b039 GH |
206 | int fdes = SCM_INUMP (object) ? SCM_INUM (object) |
207 | : SCM_FPORT_FDES (object); | |
208 | ||
6afcd3b2 GH |
209 | SCM_SYSCALL (rv = fchown (fdes, SCM_INUM (owner), SCM_INUM (group))); |
210 | } | |
211 | else | |
d831b039 | 212 | #endif |
6afcd3b2 | 213 | { |
a6d9e5ab | 214 | SCM_VALIDATE_STRING (1, object); |
a6d9e5ab | 215 | SCM_SYSCALL (rv = chown (SCM_STRING_CHARS (object), |
6afcd3b2 GH |
216 | SCM_INUM (owner), SCM_INUM (group))); |
217 | } | |
218 | if (rv == -1) | |
1bbd0b84 | 219 | SCM_SYSERROR; |
02b754d3 | 220 | return SCM_UNSPECIFIED; |
0f2d19dd | 221 | } |
1bbd0b84 | 222 | #undef FUNC_NAME |
82893676 | 223 | #endif /* HAVE_CHOWN */ |
0f2d19dd JB |
224 | |
225 | ||
a1ec6916 | 226 | SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0, |
1bbd0b84 | 227 | (SCM object, SCM mode), |
d3818c29 MD |
228 | "Changes the permissions of the file referred to by @var{obj}.\n" |
229 | "@var{obj} can be a string containing a file name or a port or integer file\n" | |
230 | "descriptor which is open on a file (in which case @code{fchmod} is used\n" | |
231 | "as the underlying system call).\n" | |
232 | "@var{mode} specifies\n" | |
233 | "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n" | |
234 | "The return value is unspecified.") | |
1bbd0b84 | 235 | #define FUNC_NAME s_scm_chmod |
0f2d19dd JB |
236 | { |
237 | int rv; | |
6afcd3b2 GH |
238 | int fdes; |
239 | ||
78446828 MV |
240 | object = SCM_COERCE_OUTPORT (object); |
241 | ||
34d19ef6 | 242 | SCM_VALIDATE_INUM (2, mode); |
0c95b57d | 243 | if (SCM_INUMP (object) || SCM_OPFPORTP (object)) |
89958ad0 | 244 | { |
6afcd3b2 GH |
245 | if (SCM_INUMP (object)) |
246 | fdes = SCM_INUM (object); | |
247 | else | |
77a76b64 | 248 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 | 249 | SCM_SYSCALL (rv = fchmod (fdes, SCM_INUM (mode))); |
89958ad0 | 250 | } |
0f2d19dd JB |
251 | else |
252 | { | |
a6d9e5ab | 253 | SCM_VALIDATE_STRING (1, object); |
a6d9e5ab | 254 | SCM_SYSCALL (rv = chmod (SCM_STRING_CHARS (object), SCM_INUM (mode))); |
0f2d19dd | 255 | } |
6afcd3b2 | 256 | if (rv == -1) |
1bbd0b84 | 257 | SCM_SYSERROR; |
02b754d3 | 258 | return SCM_UNSPECIFIED; |
0f2d19dd | 259 | } |
1bbd0b84 | 260 | #undef FUNC_NAME |
0f2d19dd | 261 | |
a1ec6916 | 262 | SCM_DEFINE (scm_umask, "umask", 0, 1, 0, |
1bbd0b84 | 263 | (SCM mode), |
bb2c02f2 | 264 | "If @var{mode} is omitted, returns a decimal number representing the current\n" |
d3818c29 MD |
265 | "file creation mask. Otherwise the file creation mask is set to\n" |
266 | "@var{mode} and the previous value is returned.\n\n" | |
267 | "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.") | |
1bbd0b84 | 268 | #define FUNC_NAME s_scm_umask |
0f2d19dd JB |
269 | { |
270 | mode_t mask; | |
271 | if (SCM_UNBNDP (mode)) | |
272 | { | |
273 | mask = umask (0); | |
274 | umask (mask); | |
275 | } | |
276 | else | |
277 | { | |
34d19ef6 | 278 | SCM_VALIDATE_INUM (1, mode); |
0f2d19dd JB |
279 | mask = umask (SCM_INUM (mode)); |
280 | } | |
281 | return SCM_MAKINUM (mask); | |
282 | } | |
1bbd0b84 | 283 | #undef FUNC_NAME |
0f2d19dd JB |
284 | |
285 | \f | |
0f2d19dd | 286 | |
a1ec6916 | 287 | SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0, |
1bbd0b84 | 288 | (SCM path, SCM flags, SCM mode), |
1e6808ea MG |
289 | "Similar to @code{open} but return a file descriptor instead of\n" |
290 | "a port.") | |
1bbd0b84 | 291 | #define FUNC_NAME s_scm_open_fdes |
0f2d19dd JB |
292 | { |
293 | int fd; | |
3d8d56df | 294 | int iflags; |
6afcd3b2 | 295 | int imode; |
0f2d19dd | 296 | |
a6d9e5ab | 297 | SCM_VALIDATE_STRING (1, path); |
1be6b49c ML |
298 | iflags = SCM_NUM2INT (2, flags); |
299 | imode = SCM_NUM2INT_DEF (3, mode, 0666); | |
a6d9e5ab | 300 | SCM_SYSCALL (fd = open (SCM_STRING_CHARS (path), iflags, imode)); |
3d8d56df | 301 | if (fd == -1) |
1bbd0b84 | 302 | SCM_SYSERROR; |
6afcd3b2 GH |
303 | return SCM_MAKINUM (fd); |
304 | } | |
1bbd0b84 | 305 | #undef FUNC_NAME |
6afcd3b2 | 306 | |
a1ec6916 | 307 | SCM_DEFINE (scm_open, "open", 2, 1, 0, |
1bbd0b84 | 308 | (SCM path, SCM flags, SCM mode), |
d3818c29 MD |
309 | "Open the file named by @var{path} for reading and/or writing.\n" |
310 | "@var{flags} is an integer specifying how the file should be opened.\n" | |
311 | "@var{mode} is an integer specifying the permission bits of the file, if\n" | |
312 | "it needs to be created, before the umask is applied. The default is 666\n" | |
313 | "(Unix itself has no default).\n\n" | |
314 | "@var{flags} can be constructed by combining variables using @code{logior}.\n" | |
315 | "Basic flags are:\n\n" | |
316 | "@defvar O_RDONLY\n" | |
317 | "Open the file read-only.\n" | |
318 | "@end defvar\n" | |
319 | "@defvar O_WRONLY\n" | |
9401323e | 320 | "Open the file write-only.\n" |
d3818c29 MD |
321 | "@end defvar\n" |
322 | "@defvar O_RDWR\n" | |
323 | "Open the file read/write.\n" | |
324 | "@end defvar\n" | |
325 | "@defvar O_APPEND\n" | |
326 | "Append to the file instead of truncating.\n" | |
327 | "@end defvar\n" | |
328 | "@defvar O_CREAT\n" | |
329 | "Create the file if it does not already exist.\n" | |
330 | "@end defvar\n\n" | |
331 | "See the Unix documentation of the @code{open} system call\n" | |
332 | "for additional flags.") | |
1bbd0b84 | 333 | #define FUNC_NAME s_scm_open |
6afcd3b2 GH |
334 | { |
335 | SCM newpt; | |
336 | char *port_mode; | |
337 | int fd; | |
6afcd3b2 GH |
338 | int iflags; |
339 | ||
340 | fd = SCM_INUM (scm_open_fdes (path, flags, mode)); | |
1be6b49c | 341 | iflags = SCM_NUM2INT (2, flags); |
3d8d56df | 342 | if (iflags & O_RDWR) |
77a76b64 JB |
343 | { |
344 | if (iflags & O_APPEND) | |
345 | port_mode = "a+"; | |
346 | else if (iflags & O_CREAT) | |
347 | port_mode = "w+"; | |
348 | else | |
349 | port_mode = "r+"; | |
350 | } | |
3d8d56df | 351 | else { |
77a76b64 JB |
352 | if (iflags & O_APPEND) |
353 | port_mode = "a"; | |
354 | else if (iflags & O_WRONLY) | |
3d8d56df GH |
355 | port_mode = "w"; |
356 | else | |
357 | port_mode = "r"; | |
358 | } | |
77a76b64 | 359 | newpt = scm_fdes_to_port (fd, port_mode, path); |
3d8d56df | 360 | return newpt; |
0f2d19dd | 361 | } |
1bbd0b84 | 362 | #undef FUNC_NAME |
0f2d19dd | 363 | |
a1ec6916 | 364 | SCM_DEFINE (scm_close, "close", 1, 0, 0, |
1bbd0b84 | 365 | (SCM fd_or_port), |
8f85c0c6 | 366 | "Similar to close-port (@pxref{Closing, close-port}),\n" |
d3818c29 MD |
367 | "but also works on file descriptors. A side\n" |
368 | "effect of closing a file descriptor is that any ports using that file\n" | |
369 | "descriptor are moved to a different file descriptor and have\n" | |
370 | "their revealed counts set to zero.") | |
1bbd0b84 | 371 | #define FUNC_NAME s_scm_close |
eadd48de GH |
372 | { |
373 | int rv; | |
374 | int fd; | |
375 | ||
78446828 MV |
376 | fd_or_port = SCM_COERCE_OUTPORT (fd_or_port); |
377 | ||
0c95b57d | 378 | if (SCM_PORTP (fd_or_port)) |
eadd48de | 379 | return scm_close_port (fd_or_port); |
34d19ef6 | 380 | SCM_VALIDATE_INUM (1, fd_or_port); |
eadd48de | 381 | fd = SCM_INUM (fd_or_port); |
eadd48de | 382 | scm_evict_ports (fd); /* see scsh manual. */ |
a9488d12 | 383 | SCM_SYSCALL (rv = close (fd)); |
eadd48de GH |
384 | /* following scsh, closing an already closed file descriptor is |
385 | not an error. */ | |
386 | if (rv < 0 && errno != EBADF) | |
1bbd0b84 | 387 | SCM_SYSERROR; |
36284627 | 388 | return SCM_BOOL (rv >= 0); |
eadd48de | 389 | } |
1bbd0b84 | 390 | #undef FUNC_NAME |
eadd48de | 391 | |
c2ca4493 GH |
392 | SCM_DEFINE (scm_close_fdes, "close-fdes", 1, 0, 0, |
393 | (SCM fd), | |
394 | "A simple wrapper for the @code{close} system call.\n" | |
395 | "Close file descriptor @var{fd}, which must be an integer.\n" | |
396 | "Unlike close (@pxref{Ports and File Descriptors, close}),\n" | |
397 | "the file descriptor will be closed even if a port is using it.\n" | |
398 | "The return value is unspecified.") | |
399 | #define FUNC_NAME s_scm_close_fdes | |
400 | { | |
401 | int c_fd; | |
402 | int rv; | |
403 | ||
404 | SCM_VALIDATE_INUM_COPY (1, fd, c_fd); | |
405 | SCM_SYSCALL (rv = close (c_fd)); | |
406 | if (rv < 0) | |
407 | SCM_SYSERROR; | |
408 | return SCM_UNSPECIFIED; | |
409 | } | |
410 | #undef FUNC_NAME | |
411 | ||
0f2d19dd JB |
412 | \f |
413 | /* {Files} | |
414 | */ | |
1cc91f1b | 415 | |
ae5253c5 GH |
416 | SCM_SYMBOL (scm_sym_regular, "regular"); |
417 | SCM_SYMBOL (scm_sym_directory, "directory"); | |
f326ecf3 | 418 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 419 | SCM_SYMBOL (scm_sym_symlink, "symlink"); |
f326ecf3 | 420 | #endif |
ae5253c5 GH |
421 | SCM_SYMBOL (scm_sym_block_special, "block-special"); |
422 | SCM_SYMBOL (scm_sym_char_special, "char-special"); | |
423 | SCM_SYMBOL (scm_sym_fifo, "fifo"); | |
424 | SCM_SYMBOL (scm_sym_sock, "socket"); | |
425 | SCM_SYMBOL (scm_sym_unknown, "unknown"); | |
426 | ||
0f2d19dd | 427 | static SCM |
1bbd0b84 | 428 | scm_stat2scm (struct stat *stat_temp) |
0f2d19dd | 429 | { |
00ffa0e7 | 430 | SCM ans = scm_c_make_vector (15, SCM_UNSPECIFIED); |
ae5253c5 | 431 | |
34d19ef6 HWN |
432 | SCM_VECTOR_SET(ans, 0, scm_ulong2num ((unsigned long) stat_temp->st_dev)); |
433 | SCM_VECTOR_SET(ans, 1, scm_ulong2num ((unsigned long) stat_temp->st_ino)); | |
434 | SCM_VECTOR_SET(ans, 2, scm_ulong2num ((unsigned long) stat_temp->st_mode)); | |
435 | SCM_VECTOR_SET(ans, 3, scm_ulong2num ((unsigned long) stat_temp->st_nlink)); | |
436 | SCM_VECTOR_SET(ans, 4, scm_ulong2num ((unsigned long) stat_temp->st_uid)); | |
437 | SCM_VECTOR_SET(ans, 5, scm_ulong2num ((unsigned long) stat_temp->st_gid)); | |
1fd85bc5 | 438 | #ifdef HAVE_STRUCT_STAT_ST_RDEV |
34d19ef6 | 439 | SCM_VECTOR_SET(ans, 6, scm_ulong2num ((unsigned long) stat_temp->st_rdev)); |
0f2d19dd | 440 | #else |
34d19ef6 | 441 | SCM_VECTOR_SET(ans, 6, SCM_BOOL_F); |
0f2d19dd | 442 | #endif |
34d19ef6 HWN |
443 | SCM_VECTOR_SET(ans, 7, scm_ulong2num ((unsigned long) stat_temp->st_size)); |
444 | SCM_VECTOR_SET(ans, 8, scm_ulong2num ((unsigned long) stat_temp->st_atime)); | |
445 | SCM_VECTOR_SET(ans, 9, scm_ulong2num ((unsigned long) stat_temp->st_mtime)); | |
446 | SCM_VECTOR_SET(ans, 10, scm_ulong2num ((unsigned long) stat_temp->st_ctime)); | |
1fd85bc5 | 447 | #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE |
34d19ef6 | 448 | SCM_VECTOR_SET(ans, 11, scm_ulong2num ((unsigned long) stat_temp->st_blksize)); |
0f2d19dd | 449 | #else |
34d19ef6 | 450 | SCM_VECTOR_SET(ans, 11, scm_ulong2num (4096L)); |
0f2d19dd | 451 | #endif |
1fd85bc5 | 452 | #ifdef HAVE_STRUCT_STAT_ST_BLOCKS |
34d19ef6 | 453 | SCM_VECTOR_SET(ans, 12, scm_ulong2num ((unsigned long) stat_temp->st_blocks)); |
0f2d19dd | 454 | #else |
34d19ef6 | 455 | SCM_VECTOR_SET(ans, 12, SCM_BOOL_F); |
0f2d19dd | 456 | #endif |
ae5253c5 GH |
457 | { |
458 | int mode = stat_temp->st_mode; | |
459 | ||
460 | if (S_ISREG (mode)) | |
34d19ef6 | 461 | SCM_VECTOR_SET(ans, 13, scm_sym_regular); |
ae5253c5 | 462 | else if (S_ISDIR (mode)) |
34d19ef6 | 463 | SCM_VECTOR_SET(ans, 13, scm_sym_directory); |
f326ecf3 | 464 | #ifdef HAVE_S_ISLNK |
ae5253c5 | 465 | else if (S_ISLNK (mode)) |
34d19ef6 | 466 | SCM_VECTOR_SET(ans, 13, scm_sym_symlink); |
f326ecf3 | 467 | #endif |
ae5253c5 | 468 | else if (S_ISBLK (mode)) |
34d19ef6 | 469 | SCM_VECTOR_SET(ans, 13, scm_sym_block_special); |
ae5253c5 | 470 | else if (S_ISCHR (mode)) |
34d19ef6 | 471 | SCM_VECTOR_SET(ans, 13, scm_sym_char_special); |
ae5253c5 | 472 | else if (S_ISFIFO (mode)) |
34d19ef6 | 473 | SCM_VECTOR_SET(ans, 13, scm_sym_fifo); |
e655d034 | 474 | #ifdef S_ISSOCK |
ae5253c5 | 475 | else if (S_ISSOCK (mode)) |
34d19ef6 | 476 | SCM_VECTOR_SET(ans, 13, scm_sym_sock); |
e655d034 | 477 | #endif |
ae5253c5 | 478 | else |
34d19ef6 | 479 | SCM_VECTOR_SET(ans, 13, scm_sym_unknown); |
ae5253c5 | 480 | |
34d19ef6 | 481 | SCM_VECTOR_SET(ans, 14, SCM_MAKINUM ((~S_IFMT) & mode)); |
ae5253c5 GH |
482 | |
483 | /* the layout of the bits in ve[14] is intended to be portable. | |
484 | If there are systems that don't follow the usual convention, | |
485 | the following could be used: | |
486 | ||
487 | tmp = 0; | |
488 | if (S_ISUID & mode) tmp += 1; | |
489 | tmp <<= 1; | |
490 | if (S_IRGRP & mode) tmp += 1; | |
491 | tmp <<= 1; | |
492 | if (S_ISVTX & mode) tmp += 1; | |
493 | tmp <<= 1; | |
494 | if (S_IRUSR & mode) tmp += 1; | |
495 | tmp <<= 1; | |
496 | if (S_IWUSR & mode) tmp += 1; | |
497 | tmp <<= 1; | |
498 | if (S_IXUSR & mode) tmp += 1; | |
499 | tmp <<= 1; | |
500 | if (S_IWGRP & mode) tmp += 1; | |
501 | tmp <<= 1; | |
502 | if (S_IXGRP & mode) tmp += 1; | |
503 | tmp <<= 1; | |
504 | if (S_IROTH & mode) tmp += 1; | |
505 | tmp <<= 1; | |
506 | if (S_IWOTH & mode) tmp += 1; | |
507 | tmp <<= 1; | |
508 | if (S_IXOTH & mode) tmp += 1; | |
509 | ||
34d19ef6 | 510 | SCM_VECTOR_SET(ans, 14, SCM_MAKINUM (tmp)); |
ae5253c5 GH |
511 | |
512 | */ | |
513 | } | |
0f2d19dd JB |
514 | |
515 | return ans; | |
516 | } | |
517 | ||
e0c73a1c MV |
518 | #ifdef __MINGW32__ |
519 | /* | |
520 | * Try getting the appropiate stat buffer for a given file descriptor | |
521 | * under Windows. It differentiates between file, pipe and socket | |
522 | * descriptors. | |
523 | */ | |
524 | static int fstat_Win32 (int fdes, struct stat *buf) | |
525 | { | |
526 | int error, optlen = sizeof (int); | |
527 | ||
528 | memset (buf, 0, sizeof (struct stat)); | |
529 | ||
530 | /* Is this a socket ? */ | |
531 | if (getsockopt (fdes, SOL_SOCKET, SO_ERROR, (void *) &error, &optlen) >= 0) | |
532 | { | |
533 | buf->st_mode = _S_IFSOCK | _S_IREAD | _S_IWRITE | _S_IEXEC; | |
534 | buf->st_nlink = 1; | |
535 | buf->st_atime = buf->st_ctime = buf->st_mtime = time (NULL); | |
536 | return 0; | |
537 | } | |
538 | /* Maybe a regular file or pipe ? */ | |
539 | return fstat (fdes, buf); | |
540 | } | |
541 | #endif /* __MINGW32__ */ | |
542 | ||
a1ec6916 | 543 | SCM_DEFINE (scm_stat, "stat", 1, 0, 0, |
1bbd0b84 | 544 | (SCM object), |
1e6808ea MG |
545 | "Return an object containing various information about the file\n" |
546 | "determined by @var{obj}. @var{obj} can be a string containing\n" | |
547 | "a file name or a port or integer file descriptor which is open\n" | |
548 | "on a file (in which case @code{fstat} is used as the underlying\n" | |
549 | "system call).\n" | |
550 | "\n" | |
551 | "The object returned by @code{stat} can be passed as a single\n" | |
552 | "parameter to the following procedures, all of which return\n" | |
553 | "integers:\n" | |
554 | "\n" | |
d3818c29 MD |
555 | "@table @code\n" |
556 | "@item stat:dev\n" | |
557 | "The device containing the file.\n" | |
558 | "@item stat:ino\n" | |
1e6808ea MG |
559 | "The file serial number, which distinguishes this file from all\n" |
560 | "other files on the same device.\n" | |
d3818c29 | 561 | "@item stat:mode\n" |
1e6808ea MG |
562 | "The mode of the file. This includes file type information and\n" |
563 | "the file permission bits. See @code{stat:type} and\n" | |
564 | "@code{stat:perms} below.\n" | |
d3818c29 MD |
565 | "@item stat:nlink\n" |
566 | "The number of hard links to the file.\n" | |
567 | "@item stat:uid\n" | |
568 | "The user ID of the file's owner.\n" | |
569 | "@item stat:gid\n" | |
570 | "The group ID of the file.\n" | |
571 | "@item stat:rdev\n" | |
572 | "Device ID; this entry is defined only for character or block\n" | |
573 | "special files.\n" | |
574 | "@item stat:size\n" | |
575 | "The size of a regular file in bytes.\n" | |
576 | "@item stat:atime\n" | |
577 | "The last access time for the file.\n" | |
578 | "@item stat:mtime\n" | |
579 | "The last modification time for the file.\n" | |
580 | "@item stat:ctime\n" | |
581 | "The last modification time for the attributes of the file.\n" | |
582 | "@item stat:blksize\n" | |
1e6808ea MG |
583 | "The optimal block size for reading or writing the file, in\n" |
584 | "bytes.\n" | |
d3818c29 | 585 | "@item stat:blocks\n" |
1e6808ea MG |
586 | "The amount of disk space that the file occupies measured in\n" |
587 | "units of 512 byte blocks.\n" | |
588 | "@end table\n" | |
589 | "\n" | |
d3818c29 | 590 | "In addition, the following procedures return the information\n" |
1e6808ea MG |
591 | "from stat:mode in a more convenient form:\n" |
592 | "\n" | |
d3818c29 MD |
593 | "@table @code\n" |
594 | "@item stat:type\n" | |
595 | "A symbol representing the type of file. Possible values are\n" | |
1e6808ea MG |
596 | "regular, directory, symlink, block-special, char-special, fifo,\n" |
597 | "socket and unknown\n" | |
d3818c29 MD |
598 | "@item stat:perms\n" |
599 | "An integer representing the access permission bits.\n" | |
600 | "@end table") | |
1bbd0b84 | 601 | #define FUNC_NAME s_scm_stat |
0f2d19dd | 602 | { |
6afcd3b2 GH |
603 | int rv; |
604 | int fdes; | |
0f2d19dd JB |
605 | struct stat stat_temp; |
606 | ||
1ea47048 | 607 | if (SCM_INUMP (object)) |
36284627 | 608 | { |
e0c73a1c MV |
609 | #ifdef __MINGW32__ |
610 | SCM_SYSCALL (rv = fstat_Win32 (SCM_INUM (object), &stat_temp)); | |
611 | #else | |
36284627 | 612 | SCM_SYSCALL (rv = fstat (SCM_INUM (object), &stat_temp)); |
e0c73a1c | 613 | #endif |
36284627 DH |
614 | } |
615 | else if (SCM_STRINGP (object)) | |
616 | { | |
e0c73a1c MV |
617 | #ifdef __MINGW32__ |
618 | char *p, *file = strdup (SCM_STRING_CHARS (object)); | |
619 | p = file + strlen (file) - 1; | |
620 | while (p > file && (*p == '/' || *p == '\\')) | |
621 | *p-- = '\0'; | |
622 | SCM_SYSCALL (rv = stat (file, &stat_temp)); | |
623 | free (file); | |
624 | #else | |
36284627 | 625 | SCM_SYSCALL (rv = stat (SCM_STRING_CHARS (object), &stat_temp)); |
e0c73a1c | 626 | #endif |
36284627 | 627 | } |
1ea47048 | 628 | else |
0f2d19dd | 629 | { |
36284627 DH |
630 | object = SCM_COERCE_OUTPORT (object); |
631 | SCM_VALIDATE_OPFPORT (1, object); | |
632 | fdes = SCM_FPORT_FDES (object); | |
e0c73a1c MV |
633 | #ifdef __MINGW32__ |
634 | SCM_SYSCALL (rv = fstat_Win32 (fdes, &stat_temp)); | |
635 | #else | |
36284627 | 636 | SCM_SYSCALL (rv = fstat (fdes, &stat_temp)); |
e0c73a1c | 637 | #endif |
6afcd3b2 | 638 | } |
36284627 | 639 | |
6afcd3b2 | 640 | if (rv == -1) |
3d8d56df GH |
641 | { |
642 | int en = errno; | |
643 | ||
5d2d2ffc | 644 | SCM_SYSERROR_MSG ("~A: ~S", |
1afff620 KN |
645 | scm_list_2 (scm_makfrom0str (strerror (errno)), |
646 | object), | |
e0c08f17 | 647 | en); |
3d8d56df | 648 | } |
02b754d3 | 649 | return scm_stat2scm (&stat_temp); |
0f2d19dd | 650 | } |
1bbd0b84 | 651 | #undef FUNC_NAME |
0f2d19dd | 652 | |
0f2d19dd JB |
653 | \f |
654 | /* {Modifying Directories} | |
655 | */ | |
656 | ||
82893676 | 657 | #ifdef HAVE_LINK |
a1ec6916 | 658 | SCM_DEFINE (scm_link, "link", 2, 0, 0, |
1bbd0b84 | 659 | (SCM oldpath, SCM newpath), |
6d36532c GH |
660 | "Creates a new name @var{newpath} in the file system for the\n" |
661 | "file named by @var{oldpath}. If @var{oldpath} is a symbolic\n" | |
662 | "link, the link may or may not be followed depending on the\n" | |
663 | "system.") | |
1bbd0b84 | 664 | #define FUNC_NAME s_scm_link |
0f2d19dd JB |
665 | { |
666 | int val; | |
02b754d3 | 667 | |
a6d9e5ab | 668 | SCM_VALIDATE_STRING (1, oldpath); |
a6d9e5ab | 669 | SCM_VALIDATE_STRING (2, newpath); |
6d36532c GH |
670 | SCM_SYSCALL (val = link (SCM_STRING_CHARS (oldpath), |
671 | SCM_STRING_CHARS (newpath))); | |
02b754d3 | 672 | if (val != 0) |
1bbd0b84 | 673 | SCM_SYSERROR; |
02b754d3 | 674 | return SCM_UNSPECIFIED; |
0f2d19dd | 675 | } |
1bbd0b84 | 676 | #undef FUNC_NAME |
82893676 | 677 | #endif /* HAVE_LINK */ |
0f2d19dd JB |
678 | |
679 | ||
680 | ||
a1ec6916 | 681 | SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0, |
1bbd0b84 | 682 | (SCM oldname, SCM newname), |
6d36532c | 683 | "Renames the file specified by @var{oldname} to @var{newname}.\n" |
d3818c29 | 684 | "The return value is unspecified.") |
1bbd0b84 | 685 | #define FUNC_NAME s_scm_rename |
0f2d19dd JB |
686 | { |
687 | int rv; | |
a6d9e5ab DH |
688 | SCM_VALIDATE_STRING (1, oldname); |
689 | SCM_VALIDATE_STRING (2, newname); | |
0f2d19dd | 690 | #ifdef HAVE_RENAME |
a6d9e5ab | 691 | SCM_SYSCALL (rv = rename (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname))); |
0f2d19dd | 692 | #else |
a6d9e5ab | 693 | SCM_SYSCALL (rv = link (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname))); |
02b754d3 | 694 | if (rv == 0) |
0f2d19dd | 695 | { |
a6d9e5ab | 696 | SCM_SYSCALL (rv = unlink (SCM_STRING_CHARS (oldname)));; |
02b754d3 | 697 | if (rv != 0) |
0f2d19dd | 698 | /* unlink failed. remove new name */ |
a6d9e5ab | 699 | SCM_SYSCALL (unlink (SCM_STRING_CHARS (newname))); |
0f2d19dd | 700 | } |
6afcd3b2 | 701 | #endif |
02b754d3 | 702 | if (rv != 0) |
1bbd0b84 | 703 | SCM_SYSERROR; |
02b754d3 | 704 | return SCM_UNSPECIFIED; |
0f2d19dd | 705 | } |
1bbd0b84 | 706 | #undef FUNC_NAME |
0f2d19dd JB |
707 | |
708 | ||
3b3b36dd | 709 | SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0, |
1bbd0b84 | 710 | (SCM str), |
d3818c29 | 711 | "Deletes (or \"unlinks\") the file specified by @var{path}.") |
1bbd0b84 | 712 | #define FUNC_NAME s_scm_delete_file |
2f3ed1ba JB |
713 | { |
714 | int ans; | |
a6d9e5ab | 715 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 716 | SCM_SYSCALL (ans = unlink (SCM_STRING_CHARS (str))); |
2f3ed1ba | 717 | if (ans != 0) |
1bbd0b84 | 718 | SCM_SYSERROR; |
2f3ed1ba JB |
719 | return SCM_UNSPECIFIED; |
720 | } | |
1bbd0b84 | 721 | #undef FUNC_NAME |
2f3ed1ba | 722 | |
f25f761d | 723 | #ifdef HAVE_MKDIR |
a1ec6916 | 724 | SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0, |
1bbd0b84 | 725 | (SCM path, SCM mode), |
d3818c29 MD |
726 | "Create a new directory named by @var{path}. If @var{mode} is omitted\n" |
727 | "then the permissions of the directory file are set using the current\n" | |
728 | "umask. Otherwise they are set to the decimal value specified with\n" | |
729 | "@var{mode}. The return value is unspecified.") | |
1bbd0b84 | 730 | #define FUNC_NAME s_scm_mkdir |
0f2d19dd | 731 | { |
0f2d19dd JB |
732 | int rv; |
733 | mode_t mask; | |
a6d9e5ab | 734 | SCM_VALIDATE_STRING (1, path); |
0f2d19dd JB |
735 | if (SCM_UNBNDP (mode)) |
736 | { | |
737 | mask = umask (0); | |
738 | umask (mask); | |
a6d9e5ab | 739 | SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), 0777 ^ mask)); |
0f2d19dd JB |
740 | } |
741 | else | |
742 | { | |
34d19ef6 | 743 | SCM_VALIDATE_INUM (2, mode); |
a6d9e5ab | 744 | SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), SCM_INUM (mode))); |
0f2d19dd | 745 | } |
02b754d3 | 746 | if (rv != 0) |
1bbd0b84 | 747 | SCM_SYSERROR; |
02b754d3 | 748 | return SCM_UNSPECIFIED; |
0f2d19dd | 749 | } |
1bbd0b84 | 750 | #undef FUNC_NAME |
f25f761d | 751 | #endif /* HAVE_MKDIR */ |
0f2d19dd | 752 | |
f25f761d | 753 | #ifdef HAVE_RMDIR |
a1ec6916 | 754 | SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0, |
1bbd0b84 | 755 | (SCM path), |
d3818c29 MD |
756 | "Remove the existing directory named by @var{path}. The directory must\n" |
757 | "be empty for this to succeed. The return value is unspecified.") | |
1bbd0b84 | 758 | #define FUNC_NAME s_scm_rmdir |
0f2d19dd | 759 | { |
0f2d19dd | 760 | int val; |
02b754d3 | 761 | |
a6d9e5ab | 762 | SCM_VALIDATE_STRING (1, path); |
a6d9e5ab | 763 | SCM_SYSCALL (val = rmdir (SCM_STRING_CHARS (path))); |
02b754d3 | 764 | if (val != 0) |
1bbd0b84 | 765 | SCM_SYSERROR; |
02b754d3 | 766 | return SCM_UNSPECIFIED; |
0f2d19dd | 767 | } |
1bbd0b84 | 768 | #undef FUNC_NAME |
f25f761d | 769 | #endif |
0f2d19dd JB |
770 | |
771 | \f | |
30ea841d | 772 | |
0f2d19dd JB |
773 | /* {Examining Directories} |
774 | */ | |
775 | ||
92c2555f | 776 | scm_t_bits scm_tc16_dir; |
0f2d19dd | 777 | |
30ea841d | 778 | |
a1ec6916 | 779 | SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0, |
1bbd0b84 | 780 | (SCM obj), |
1e6808ea MG |
781 | "Return a boolean indicating whether @var{object} is a directory\n" |
782 | "stream as returned by @code{opendir}.") | |
1bbd0b84 | 783 | #define FUNC_NAME s_scm_directory_stream_p |
77242ff9 | 784 | { |
30ea841d | 785 | return SCM_BOOL (SCM_DIRP (obj)); |
77242ff9 | 786 | } |
1bbd0b84 | 787 | #undef FUNC_NAME |
77242ff9 | 788 | |
30ea841d | 789 | |
a1ec6916 | 790 | SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0, |
1bbd0b84 | 791 | (SCM dirname), |
d3818c29 MD |
792 | "Open the directory specified by @var{path} and return a directory\n" |
793 | "stream.") | |
1bbd0b84 | 794 | #define FUNC_NAME s_scm_opendir |
0f2d19dd JB |
795 | { |
796 | DIR *ds; | |
a6d9e5ab | 797 | SCM_VALIDATE_STRING (1, dirname); |
a6d9e5ab | 798 | SCM_SYSCALL (ds = opendir (SCM_STRING_CHARS (dirname))); |
02b754d3 | 799 | if (ds == NULL) |
1bbd0b84 | 800 | SCM_SYSERROR; |
30ea841d | 801 | SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_DIR_FLAG_OPEN, ds); |
0f2d19dd | 802 | } |
1bbd0b84 | 803 | #undef FUNC_NAME |
0f2d19dd JB |
804 | |
805 | ||
a1ec6916 | 806 | SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0, |
1bbd0b84 | 807 | (SCM port), |
d3818c29 MD |
808 | "Return (as a string) the next directory entry from the directory stream\n" |
809 | "@var{stream}. If there is no remaining entry to be read then the\n" | |
810 | "end of file object is returned.") | |
1bbd0b84 | 811 | #define FUNC_NAME s_scm_readdir |
0f2d19dd JB |
812 | { |
813 | struct dirent *rdent; | |
30ea841d DH |
814 | |
815 | SCM_VALIDATE_DIR (1, port); | |
816 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 817 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 818 | |
0f2d19dd | 819 | errno = 0; |
4260a7fc | 820 | SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CELL_WORD_1 (port))); |
02b754d3 | 821 | if (errno != 0) |
1bbd0b84 | 822 | SCM_SYSERROR; |
30ea841d | 823 | |
36284627 | 824 | return (rdent ? scm_mem2string (rdent->d_name, NAMLEN (rdent)) |
02b754d3 | 825 | : SCM_EOF_VAL); |
0f2d19dd | 826 | } |
1bbd0b84 | 827 | #undef FUNC_NAME |
0f2d19dd JB |
828 | |
829 | ||
a1ec6916 | 830 | SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0, |
1bbd0b84 | 831 | (SCM port), |
d3818c29 MD |
832 | "Reset the directory port @var{stream} so that the next call to\n" |
833 | "@code{readdir} will return the first directory entry.") | |
1bbd0b84 | 834 | #define FUNC_NAME s_scm_rewinddir |
0f2d19dd | 835 | { |
30ea841d DH |
836 | SCM_VALIDATE_DIR (1, port); |
837 | if (!SCM_DIR_OPEN_P (port)) | |
1afff620 | 838 | SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port)); |
30ea841d | 839 | |
4260a7fc | 840 | rewinddir ((DIR *) SCM_CELL_WORD_1 (port)); |
30ea841d | 841 | |
0f2d19dd JB |
842 | return SCM_UNSPECIFIED; |
843 | } | |
1bbd0b84 | 844 | #undef FUNC_NAME |
0f2d19dd JB |
845 | |
846 | ||
a1ec6916 | 847 | SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0, |
1bbd0b84 | 848 | (SCM port), |
d3818c29 MD |
849 | "Close the directory stream @var{stream}.\n" |
850 | "The return value is unspecified.") | |
1bbd0b84 | 851 | #define FUNC_NAME s_scm_closedir |
0f2d19dd | 852 | { |
30ea841d | 853 | SCM_VALIDATE_DIR (1, port); |
02b754d3 | 854 | |
30ea841d | 855 | if (SCM_DIR_OPEN_P (port)) |
0f2d19dd | 856 | { |
30ea841d DH |
857 | int sts; |
858 | ||
859 | SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port))); | |
860 | if (sts != 0) | |
861 | SCM_SYSERROR; | |
862 | ||
863 | SCM_SET_CELL_WORD_0 (port, scm_tc16_dir); | |
0f2d19dd | 864 | } |
30ea841d | 865 | |
02b754d3 | 866 | return SCM_UNSPECIFIED; |
0f2d19dd | 867 | } |
1bbd0b84 | 868 | #undef FUNC_NAME |
0f2d19dd JB |
869 | |
870 | ||
0f2d19dd | 871 | static int |
e81d98ec | 872 | scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
0f2d19dd | 873 | { |
f8b16091 | 874 | scm_puts ("#<", port); |
30ea841d | 875 | if (!SCM_DIR_OPEN_P (exp)) |
f8b16091 | 876 | scm_puts ("closed: ", port); |
0d03da62 | 877 | scm_puts ("directory stream ", port); |
4260a7fc | 878 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); |
f8b16091 | 879 | scm_putc ('>', port); |
0f2d19dd JB |
880 | return 1; |
881 | } | |
882 | ||
1cc91f1b | 883 | |
1be6b49c | 884 | static size_t |
1bbd0b84 | 885 | scm_dir_free (SCM p) |
0f2d19dd | 886 | { |
30ea841d | 887 | if (SCM_DIR_OPEN_P (p)) |
4260a7fc | 888 | closedir ((DIR *) SCM_CELL_WORD_1 (p)); |
0f2d19dd JB |
889 | return 0; |
890 | } | |
891 | ||
0f2d19dd JB |
892 | \f |
893 | /* {Navigating Directories} | |
894 | */ | |
895 | ||
896 | ||
a1ec6916 | 897 | SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0, |
1bbd0b84 | 898 | (SCM str), |
d3818c29 MD |
899 | "Change the current working directory to @var{path}.\n" |
900 | "The return value is unspecified.") | |
1bbd0b84 | 901 | #define FUNC_NAME s_scm_chdir |
0f2d19dd JB |
902 | { |
903 | int ans; | |
02b754d3 | 904 | |
a6d9e5ab | 905 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 906 | SCM_SYSCALL (ans = chdir (SCM_STRING_CHARS (str))); |
02b754d3 | 907 | if (ans != 0) |
1bbd0b84 | 908 | SCM_SYSERROR; |
02b754d3 | 909 | return SCM_UNSPECIFIED; |
0f2d19dd | 910 | } |
1bbd0b84 | 911 | #undef FUNC_NAME |
0f2d19dd | 912 | |
f25f761d | 913 | #ifdef HAVE_GETCWD |
a1ec6916 | 914 | SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0, |
1bbd0b84 | 915 | (), |
1e6808ea | 916 | "Return the name of the current working directory.") |
1bbd0b84 | 917 | #define FUNC_NAME s_scm_getcwd |
0f2d19dd | 918 | { |
0f2d19dd | 919 | char *rv; |
1be6b49c | 920 | size_t size = 100; |
0f2d19dd JB |
921 | char *wd; |
922 | SCM result; | |
923 | ||
4c9419ac | 924 | wd = scm_malloc (size); |
0f2d19dd JB |
925 | while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE) |
926 | { | |
4c9419ac | 927 | free (wd); |
0f2d19dd | 928 | size *= 2; |
4c9419ac | 929 | wd = scm_malloc (size); |
0f2d19dd | 930 | } |
02b754d3 | 931 | if (rv == 0) |
1bbd0b84 | 932 | SCM_SYSERROR; |
36284627 | 933 | result = scm_mem2string (wd, strlen (wd)); |
4c9419ac | 934 | free (wd); |
0f2d19dd | 935 | return result; |
0f2d19dd | 936 | } |
1bbd0b84 | 937 | #undef FUNC_NAME |
f25f761d | 938 | #endif /* HAVE_GETCWD */ |
0f2d19dd JB |
939 | |
940 | \f | |
941 | ||
28d77376 GH |
942 | #ifdef HAVE_SELECT |
943 | ||
944 | /* check that element is a port or file descriptor. if it's a port | |
945 | and its buffer is ready for use, add it to the ports_ready list. | |
946 | otherwise add its file descriptor to *set. the type of list can be | |
947 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
948 | SCM_ARG3 for excepts. */ | |
cafc12ff | 949 | static int |
28d77376 | 950 | set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos) |
a48a89bc | 951 | { |
cafc12ff | 952 | int fd; |
d831b039 | 953 | |
28d77376 GH |
954 | if (SCM_INUMP (element)) |
955 | { | |
956 | fd = SCM_INUM (element); | |
957 | } | |
958 | else | |
959 | { | |
960 | int use_buf = 0; | |
961 | ||
962 | element = SCM_COERCE_OUTPORT (element); | |
963 | SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select"); | |
964 | if (pos == SCM_ARG1) | |
965 | { | |
966 | /* check whether port has buffered input. */ | |
92c2555f | 967 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
968 | |
969 | if (pt->read_pos < pt->read_end) | |
970 | use_buf = 1; | |
971 | } | |
972 | else if (pos == SCM_ARG2) | |
973 | { | |
974 | /* check whether port's output buffer has room. */ | |
92c2555f | 975 | scm_t_port *pt = SCM_PTAB_ENTRY (element); |
28d77376 GH |
976 | |
977 | /* > 1 since writing the last byte in the buffer causes flush. */ | |
978 | if (pt->write_end - pt->write_pos > 1) | |
979 | use_buf = 1; | |
980 | } | |
981 | fd = use_buf ? -1 : SCM_FPORT_FDES (element); | |
982 | } | |
983 | if (fd == -1) | |
984 | *ports_ready = scm_cons (element, *ports_ready); | |
985 | else | |
986 | FD_SET (fd, set); | |
cafc12ff | 987 | return fd; |
a48a89bc | 988 | } |
1cc91f1b | 989 | |
28d77376 GH |
990 | /* check list_or_vec, a list or vector of ports or file descriptors, |
991 | adding each member to either the ports_ready list (if it's a port | |
992 | with a usable buffer) or to *set. the kind of list_or_vec can be | |
993 | determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes, | |
994 | SCM_ARG3 for excepts. */ | |
cafc12ff | 995 | static int |
28d77376 | 996 | fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos) |
0f2d19dd | 997 | { |
28d77376 GH |
998 | int max_fd = 0; |
999 | ||
1000 | if (SCM_VECTORP (list_or_vec)) | |
0f2d19dd | 1001 | { |
9fd38a3d | 1002 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
34d19ef6 | 1003 | SCM const *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1004 | |
28d77376 | 1005 | while (--i >= 0) |
a48a89bc | 1006 | { |
28d77376 GH |
1007 | int fd = set_element (set, ports_ready, ve[i], pos); |
1008 | ||
cafc12ff MD |
1009 | if (fd > max_fd) |
1010 | max_fd = fd; | |
a48a89bc GH |
1011 | } |
1012 | } | |
1013 | else | |
1014 | { | |
c96d76b8 | 1015 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
a48a89bc | 1016 | { |
28d77376 GH |
1017 | int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos); |
1018 | ||
cafc12ff MD |
1019 | if (fd > max_fd) |
1020 | max_fd = fd; | |
28d77376 | 1021 | list_or_vec = SCM_CDR (list_or_vec); |
a48a89bc | 1022 | } |
0f2d19dd | 1023 | } |
cafc12ff MD |
1024 | |
1025 | return max_fd; | |
0f2d19dd JB |
1026 | } |
1027 | ||
28d77376 GH |
1028 | /* if element (a file descriptor or port) appears in *set, cons it to |
1029 | list. return list. */ | |
a48a89bc GH |
1030 | static SCM |
1031 | get_element (SELECT_TYPE *set, SCM element, SCM list) | |
1032 | { | |
28d77376 GH |
1033 | int fd; |
1034 | ||
1035 | if (SCM_INUMP (element)) | |
a48a89bc | 1036 | { |
28d77376 | 1037 | fd = SCM_INUM (element); |
a48a89bc | 1038 | } |
28d77376 | 1039 | else |
a48a89bc | 1040 | { |
28d77376 | 1041 | fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element)); |
a48a89bc | 1042 | } |
28d77376 GH |
1043 | if (FD_ISSET (fd, set)) |
1044 | list = scm_cons (element, list); | |
a48a89bc GH |
1045 | return list; |
1046 | } | |
1cc91f1b | 1047 | |
28d77376 GH |
1048 | /* construct component of scm_select return value. |
1049 | set: pointer to set of file descriptors found by select to be ready | |
1050 | ports_ready: ports ready due to buffering | |
1051 | list_or_vec: original list/vector handed to scm_select. | |
1052 | the return value is a list/vector of ready ports/file descriptors. | |
1053 | works by finding the objects in list which correspond to members of | |
1054 | *set and appending them to ports_ready. result is converted to a | |
1055 | vector if list_or_vec is a vector. */ | |
0f2d19dd | 1056 | static SCM |
28d77376 | 1057 | retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec) |
0f2d19dd | 1058 | { |
28d77376 | 1059 | SCM answer_list = ports_ready; |
a48a89bc | 1060 | |
28d77376 | 1061 | if (SCM_VECTORP (list_or_vec)) |
0f2d19dd | 1062 | { |
9fd38a3d | 1063 | int i = SCM_VECTOR_LENGTH (list_or_vec); |
34d19ef6 | 1064 | SCM const *ve = SCM_VELTS (list_or_vec); |
a48a89bc | 1065 | |
28d77376 | 1066 | while (--i >= 0) |
0f2d19dd | 1067 | { |
28d77376 | 1068 | answer_list = get_element (set, ve[i], answer_list); |
0f2d19dd | 1069 | } |
a48a89bc GH |
1070 | return scm_vector (answer_list); |
1071 | } | |
1072 | else | |
1073 | { | |
28d77376 | 1074 | /* list_or_vec must be a list. */ |
c96d76b8 | 1075 | while (!SCM_NULL_OR_NIL_P (list_or_vec)) |
0f2d19dd | 1076 | { |
28d77376 GH |
1077 | answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list); |
1078 | list_or_vec = SCM_CDR (list_or_vec); | |
0f2d19dd | 1079 | } |
a48a89bc | 1080 | return answer_list; |
0f2d19dd | 1081 | } |
0f2d19dd JB |
1082 | } |
1083 | ||
1bbd0b84 | 1084 | /* Static helper functions above refer to s_scm_select directly as s_select */ |
a1ec6916 | 1085 | SCM_DEFINE (scm_select, "select", 3, 2, 0, |
1bbd0b84 | 1086 | (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs), |
28d77376 | 1087 | "This procedure has a variety of uses: waiting for the ability\n" |
bb2c02f2 | 1088 | "to provide input, accept output, or the existence of\n" |
28d77376 GH |
1089 | "exceptional conditions on a collection of ports or file\n" |
1090 | "descriptors, or waiting for a timeout to occur.\n" | |
1091 | "It also returns if interrupted by a signal.\n\n" | |
1092 | "@var{reads}, @var{writes} and @var{excepts} can be lists or\n" | |
1093 | "vectors, with each member a port or a file descriptor.\n" | |
1094 | "The value returned is a list of three corresponding\n" | |
1095 | "lists or vectors containing only the members which meet the\n" | |
1096 | "specified requirement. The ability of port buffers to\n" | |
1097 | "provide input or accept output is taken into account.\n" | |
1098 | "Ordering of the input lists or vectors is not preserved.\n\n" | |
1099 | "The optional arguments @var{secs} and @var{usecs} specify the\n" | |
1100 | "timeout. Either @var{secs} can be specified alone, as\n" | |
1101 | "either an integer or a real number, or both @var{secs} and\n" | |
1102 | "@var{usecs} can be specified as integers, in which case\n" | |
1103 | "@var{usecs} is an additional timeout expressed in\n" | |
1104 | "microseconds. If @var{secs} is omitted or is @code{#f} then\n" | |
1105 | "select will wait for as long as it takes for one of the other\n" | |
1106 | "conditions to be satisfied.\n\n" | |
1107 | "The scsh version of @code{select} differs as follows:\n" | |
1108 | "Only vectors are accepted for the first three arguments.\n" | |
1109 | "The @var{usecs} argument is not supported.\n" | |
1110 | "Multiple values are returned instead of a list.\n" | |
1111 | "Duplicates in the input vectors appear only once in output.\n" | |
9401323e | 1112 | "An additional @code{select!} interface is provided.") |
1bbd0b84 | 1113 | #define FUNC_NAME s_scm_select |
0f2d19dd | 1114 | { |
0f2d19dd | 1115 | struct timeval timeout; |
28d77376 | 1116 | struct timeval * time_ptr; |
0f2d19dd JB |
1117 | SELECT_TYPE read_set; |
1118 | SELECT_TYPE write_set; | |
1119 | SELECT_TYPE except_set; | |
28d77376 GH |
1120 | int read_count; |
1121 | int write_count; | |
1122 | int except_count; | |
1123 | /* these lists accumulate ports which are ready due to buffering. | |
1124 | their file descriptors don't need to be added to the select sets. */ | |
1125 | SCM read_ports_ready = SCM_EOL; | |
1126 | SCM write_ports_ready = SCM_EOL; | |
1127 | int max_fd; | |
1128 | ||
1129 | if (SCM_VECTORP (reads)) | |
1130 | { | |
9fd38a3d | 1131 | read_count = SCM_VECTOR_LENGTH (reads); |
28d77376 GH |
1132 | } |
1133 | else | |
1134 | { | |
1135 | read_count = scm_ilength (reads); | |
1136 | SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME); | |
1137 | } | |
1138 | if (SCM_VECTORP (writes)) | |
1139 | { | |
9fd38a3d | 1140 | write_count = SCM_VECTOR_LENGTH (writes); |
28d77376 GH |
1141 | } |
1142 | else | |
1143 | { | |
1144 | write_count = scm_ilength (writes); | |
1145 | SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME); | |
1146 | } | |
1147 | if (SCM_VECTORP (excepts)) | |
1148 | { | |
9fd38a3d | 1149 | except_count = SCM_VECTOR_LENGTH (excepts); |
28d77376 GH |
1150 | } |
1151 | else | |
1152 | { | |
1153 | except_count = scm_ilength (excepts); | |
1154 | SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME); | |
1155 | } | |
0f2d19dd JB |
1156 | |
1157 | FD_ZERO (&read_set); | |
1158 | FD_ZERO (&write_set); | |
1159 | FD_ZERO (&except_set); | |
1160 | ||
28d77376 GH |
1161 | max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1); |
1162 | ||
1163 | { | |
1164 | int write_max = fill_select_type (&write_set, &write_ports_ready, | |
1165 | writes, SCM_ARG2); | |
1166 | int except_max = fill_select_type (&except_set, NULL, | |
1167 | excepts, SCM_ARG3); | |
1168 | ||
1169 | if (write_max > max_fd) | |
1170 | max_fd = write_max; | |
1171 | if (except_max > max_fd) | |
1172 | max_fd = except_max; | |
1173 | } | |
0f2d19dd | 1174 | |
ae1b098b GH |
1175 | /* if there's a port with a ready buffer, don't block, just |
1176 | check for ready file descriptors. */ | |
4260a7fc | 1177 | if (!SCM_NULLP (read_ports_ready) || !SCM_NULLP (write_ports_ready)) |
ae1b098b GH |
1178 | { |
1179 | timeout.tv_sec = 0; | |
1180 | timeout.tv_usec = 0; | |
1181 | time_ptr = &timeout; | |
1182 | } | |
1183 | else if (SCM_UNBNDP (secs) || SCM_FALSEP (secs)) | |
28d77376 | 1184 | time_ptr = 0; |
0f2d19dd JB |
1185 | else |
1186 | { | |
ae1b098b | 1187 | if (SCM_INUMP (secs)) |
a48a89bc GH |
1188 | { |
1189 | timeout.tv_sec = SCM_INUM (secs); | |
1190 | if (SCM_UNBNDP (usecs)) | |
1191 | timeout.tv_usec = 0; | |
1192 | else | |
1193 | { | |
34d19ef6 | 1194 | SCM_VALIDATE_INUM (5, usecs); |
a48a89bc GH |
1195 | timeout.tv_usec = SCM_INUM (usecs); |
1196 | } | |
1197 | } | |
0f2d19dd | 1198 | else |
a48a89bc | 1199 | { |
1bbd0b84 | 1200 | double fl = scm_num2dbl (secs, FUNC_NAME); |
a48a89bc GH |
1201 | |
1202 | if (!SCM_UNBNDP (usecs)) | |
c1bfcf60 | 1203 | SCM_WRONG_TYPE_ARG (4, secs); |
a48a89bc | 1204 | if (fl > LONG_MAX) |
c1bfcf60 | 1205 | SCM_OUT_OF_RANGE (4, secs); |
a48a89bc GH |
1206 | timeout.tv_sec = (long) fl; |
1207 | timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000); | |
1208 | } | |
28d77376 | 1209 | time_ptr = &timeout; |
0f2d19dd JB |
1210 | } |
1211 | ||
28d77376 | 1212 | { |
28d77376 GH |
1213 | int rv = scm_internal_select (max_fd + 1, |
1214 | &read_set, &write_set, &except_set, | |
1215 | time_ptr); | |
28d77376 GH |
1216 | if (rv < 0) |
1217 | SCM_SYSERROR; | |
1218 | } | |
1afff620 KN |
1219 | return scm_list_3 (retrieve_select_type (&read_set, read_ports_ready, reads), |
1220 | retrieve_select_type (&write_set, write_ports_ready, writes), | |
1221 | retrieve_select_type (&except_set, SCM_EOL, excepts)); | |
0f2d19dd | 1222 | } |
1bbd0b84 | 1223 | #undef FUNC_NAME |
f25f761d | 1224 | #endif /* HAVE_SELECT */ |
0f2d19dd JB |
1225 | |
1226 | \f | |
4c1feaa5 | 1227 | |
82893676 | 1228 | #ifdef HAVE_FCNTL |
af45e3b0 | 1229 | SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0, |
1bbd0b84 | 1230 | (SCM object, SCM cmd, SCM value), |
d3818c29 MD |
1231 | "Apply @var{command} to the specified file descriptor or the underlying\n" |
1232 | "file descriptor of the specified port. @var{value} is an optional\n" | |
1233 | "integer argument.\n\n" | |
1234 | "Values for @var{command} are:\n\n" | |
1235 | "@table @code\n" | |
1236 | "@item F_DUPFD\n" | |
1237 | "Duplicate a file descriptor\n" | |
1238 | "@item F_GETFD\n" | |
1239 | "Get flags associated with the file descriptor.\n" | |
1240 | "@item F_SETFD\n" | |
1241 | "Set flags associated with the file descriptor to @var{value}.\n" | |
1242 | "@item F_GETFL\n" | |
1243 | "Get flags associated with the open file.\n" | |
1244 | "@item F_SETFL\n" | |
1245 | "Set flags associated with the open file to @var{value}\n" | |
1246 | "@item F_GETOWN\n" | |
1247 | "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n" | |
1248 | "@item F_SETOWN\n" | |
1249 | "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n" | |
1250 | "@item FD_CLOEXEC\n" | |
55892d87 NJ |
1251 | "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n" |
1252 | "@code{F_SETFL}.\n" | |
a3c8b9fc | 1253 | "@end table") |
1bbd0b84 | 1254 | #define FUNC_NAME s_scm_fcntl |
4c1feaa5 JB |
1255 | { |
1256 | int rv; | |
6afcd3b2 GH |
1257 | int fdes; |
1258 | int ivalue; | |
4c1feaa5 | 1259 | |
78446828 MV |
1260 | object = SCM_COERCE_OUTPORT (object); |
1261 | ||
34d19ef6 | 1262 | SCM_VALIDATE_INUM (2, cmd); |
0c95b57d | 1263 | if (SCM_OPFPORTP (object)) |
77a76b64 | 1264 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1265 | else |
1266 | { | |
34d19ef6 | 1267 | SCM_VALIDATE_INUM (1, object); |
6afcd3b2 GH |
1268 | fdes = SCM_INUM (object); |
1269 | } | |
af45e3b0 DH |
1270 | |
1271 | if (SCM_UNBNDP (value)) { | |
6afcd3b2 | 1272 | ivalue = 0; |
af45e3b0 DH |
1273 | } else { |
1274 | SCM_VALIDATE_INUM_COPY (SCM_ARG3, value, ivalue); | |
1275 | } | |
1276 | ||
77a76b64 JB |
1277 | SCM_SYSCALL (rv = fcntl (fdes, SCM_INUM (cmd), ivalue)); |
1278 | if (rv == -1) | |
1bbd0b84 | 1279 | SCM_SYSERROR; |
4c1feaa5 JB |
1280 | return SCM_MAKINUM (rv); |
1281 | } | |
1bbd0b84 | 1282 | #undef FUNC_NAME |
82893676 | 1283 | #endif /* HAVE_FCNTL */ |
6afcd3b2 | 1284 | |
a1ec6916 | 1285 | SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0, |
1bbd0b84 | 1286 | (SCM object), |
d3818c29 MD |
1287 | "Copies any unwritten data for the specified output file descriptor to disk.\n" |
1288 | "If @var{port/fd} is a port, its buffer is flushed before the underlying\n" | |
1289 | "file descriptor is fsync'd.\n" | |
1290 | "The return value is unspecified.") | |
1bbd0b84 | 1291 | #define FUNC_NAME s_scm_fsync |
6afcd3b2 GH |
1292 | { |
1293 | int fdes; | |
1294 | ||
78446828 MV |
1295 | object = SCM_COERCE_OUTPORT (object); |
1296 | ||
0c95b57d | 1297 | if (SCM_OPFPORTP (object)) |
6afcd3b2 | 1298 | { |
affc96b5 | 1299 | scm_flush (object); |
77a76b64 | 1300 | fdes = SCM_FPORT_FDES (object); |
6afcd3b2 GH |
1301 | } |
1302 | else | |
1303 | { | |
34d19ef6 | 1304 | SCM_VALIDATE_INUM (1, object); |
6afcd3b2 GH |
1305 | fdes = SCM_INUM (object); |
1306 | } | |
1307 | if (fsync (fdes) == -1) | |
1bbd0b84 | 1308 | SCM_SYSERROR; |
6afcd3b2 GH |
1309 | return SCM_UNSPECIFIED; |
1310 | } | |
1bbd0b84 | 1311 | #undef FUNC_NAME |
0f2d19dd | 1312 | |
f25f761d | 1313 | #ifdef HAVE_SYMLINK |
a1ec6916 | 1314 | SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0, |
1bbd0b84 | 1315 | (SCM oldpath, SCM newpath), |
d3818c29 MD |
1316 | "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n" |
1317 | "@var{path-from}. The return value is unspecified.") | |
1bbd0b84 | 1318 | #define FUNC_NAME s_scm_symlink |
0f2d19dd | 1319 | { |
0f2d19dd | 1320 | int val; |
02b754d3 | 1321 | |
a6d9e5ab DH |
1322 | SCM_VALIDATE_STRING (1, oldpath); |
1323 | SCM_VALIDATE_STRING (2, newpath); | |
a6d9e5ab | 1324 | SCM_SYSCALL (val = symlink (SCM_STRING_CHARS (oldpath), SCM_STRING_CHARS (newpath))); |
02b754d3 | 1325 | if (val != 0) |
1bbd0b84 | 1326 | SCM_SYSERROR; |
02b754d3 | 1327 | return SCM_UNSPECIFIED; |
0f2d19dd | 1328 | } |
1bbd0b84 | 1329 | #undef FUNC_NAME |
f25f761d | 1330 | #endif /* HAVE_SYMLINK */ |
0f2d19dd | 1331 | |
f25f761d | 1332 | #ifdef HAVE_READLINK |
a1ec6916 | 1333 | SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0, |
1bbd0b84 | 1334 | (SCM path), |
1e6808ea MG |
1335 | "Return the value of the symbolic link named by @var{path} (a\n" |
1336 | "string), i.e., the file that the link points to.") | |
1bbd0b84 | 1337 | #define FUNC_NAME s_scm_readlink |
0f2d19dd | 1338 | { |
6a738a25 JB |
1339 | int rv; |
1340 | int size = 100; | |
0f2d19dd JB |
1341 | char *buf; |
1342 | SCM result; | |
a6d9e5ab | 1343 | SCM_VALIDATE_STRING (1, path); |
4c9419ac | 1344 | buf = scm_malloc (size); |
a6d9e5ab | 1345 | while ((rv = readlink (SCM_STRING_CHARS (path), buf, size)) == size) |
0f2d19dd | 1346 | { |
4c9419ac | 1347 | free (buf); |
0f2d19dd | 1348 | size *= 2; |
4c9419ac | 1349 | buf = scm_malloc (size); |
0f2d19dd | 1350 | } |
02b754d3 | 1351 | if (rv == -1) |
1bbd0b84 | 1352 | SCM_SYSERROR; |
36284627 | 1353 | result = scm_mem2string (buf, rv); |
4c9419ac | 1354 | free (buf); |
0f2d19dd | 1355 | return result; |
0f2d19dd | 1356 | } |
1bbd0b84 | 1357 | #undef FUNC_NAME |
f25f761d | 1358 | #endif /* HAVE_READLINK */ |
0f2d19dd | 1359 | |
f25f761d | 1360 | #ifdef HAVE_LSTAT |
a1ec6916 | 1361 | SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0, |
1bbd0b84 | 1362 | (SCM str), |
d3818c29 | 1363 | "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n" |
9401323e | 1364 | "it will return information about a symbolic link itself, not the\n" |
d3818c29 | 1365 | "file it points to. @var{path} must be a string.") |
1bbd0b84 | 1366 | #define FUNC_NAME s_scm_lstat |
0f2d19dd | 1367 | { |
02b754d3 | 1368 | int rv; |
0f2d19dd | 1369 | struct stat stat_temp; |
02b754d3 | 1370 | |
a6d9e5ab | 1371 | SCM_VALIDATE_STRING (1, str); |
a6d9e5ab | 1372 | SCM_SYSCALL (rv = lstat (SCM_STRING_CHARS (str), &stat_temp)); |
02b754d3 | 1373 | if (rv != 0) |
3d8d56df GH |
1374 | { |
1375 | int en = errno; | |
1376 | ||
5d2d2ffc | 1377 | SCM_SYSERROR_MSG ("~A: ~S", |
1afff620 | 1378 | scm_list_2 (scm_makfrom0str (strerror (errno)), str), |
e0c08f17 | 1379 | en); |
3d8d56df | 1380 | } |
02b754d3 | 1381 | return scm_stat2scm(&stat_temp); |
0f2d19dd | 1382 | } |
1bbd0b84 | 1383 | #undef FUNC_NAME |
f25f761d | 1384 | #endif /* HAVE_LSTAT */ |
0f2d19dd | 1385 | |
a1ec6916 | 1386 | SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0, |
1bbd0b84 | 1387 | (SCM oldfile, SCM newfile), |
d3818c29 MD |
1388 | "Copy the file specified by @var{path-from} to @var{path-to}.\n" |
1389 | "The return value is unspecified.") | |
1bbd0b84 | 1390 | #define FUNC_NAME s_scm_copy_file |
0f2d19dd JB |
1391 | { |
1392 | int oldfd, newfd; | |
1393 | int n; | |
77a76b64 | 1394 | char buf[BUFSIZ]; |
0f2d19dd JB |
1395 | struct stat oldstat; |
1396 | ||
a6d9e5ab | 1397 | SCM_VALIDATE_STRING (1, oldfile); |
a6d9e5ab | 1398 | SCM_VALIDATE_STRING (2, newfile); |
a6d9e5ab | 1399 | if (stat (SCM_STRING_CHARS (oldfile), &oldstat) == -1) |
1bbd0b84 | 1400 | SCM_SYSERROR; |
a6d9e5ab | 1401 | oldfd = open (SCM_STRING_CHARS (oldfile), O_RDONLY); |
0f2d19dd | 1402 | if (oldfd == -1) |
1bbd0b84 | 1403 | SCM_SYSERROR; |
02b754d3 GH |
1404 | |
1405 | /* use POSIX flags instead of 07777?. */ | |
a6d9e5ab | 1406 | newfd = open (SCM_STRING_CHARS (newfile), O_WRONLY | O_CREAT | O_TRUNC, |
0f2d19dd JB |
1407 | oldstat.st_mode & 07777); |
1408 | if (newfd == -1) | |
1bbd0b84 | 1409 | SCM_SYSERROR; |
02b754d3 | 1410 | |
0f2d19dd JB |
1411 | while ((n = read (oldfd, buf, sizeof buf)) > 0) |
1412 | if (write (newfd, buf, n) != n) | |
1413 | { | |
1414 | close (oldfd); | |
1415 | close (newfd); | |
1bbd0b84 | 1416 | SCM_SYSERROR; |
0f2d19dd JB |
1417 | } |
1418 | close (oldfd); | |
1419 | if (close (newfd) == -1) | |
1bbd0b84 | 1420 | SCM_SYSERROR; |
02b754d3 | 1421 | return SCM_UNSPECIFIED; |
0f2d19dd | 1422 | } |
1bbd0b84 | 1423 | #undef FUNC_NAME |
0f2d19dd JB |
1424 | |
1425 | \f | |
6a738a25 JB |
1426 | /* Filename manipulation */ |
1427 | ||
1428 | SCM scm_dot_string; | |
1429 | ||
a1ec6916 | 1430 | SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0, |
1bbd0b84 | 1431 | (SCM filename), |
fa6a543f MG |
1432 | "Return the directory name component of the file name\n" |
1433 | "@var{filename}. If @var{filename} does not contain a directory\n" | |
1434 | "component, @code{.} is returned.") | |
1bbd0b84 | 1435 | #define FUNC_NAME s_scm_dirname |
6a738a25 JB |
1436 | { |
1437 | char *s; | |
9fd38a3d DH |
1438 | long int i; |
1439 | unsigned long int len; | |
1440 | ||
34d19ef6 | 1441 | SCM_VALIDATE_STRING (1, filename); |
9fd38a3d | 1442 | |
34f0f2b8 | 1443 | s = SCM_STRING_CHARS (filename); |
9fd38a3d DH |
1444 | len = SCM_STRING_LENGTH (filename); |
1445 | ||
6a738a25 | 1446 | i = len - 1; |
82893676 MG |
1447 | #ifdef __MINGW32__ |
1448 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; | |
e0c73a1c | 1449 | while (i >= 0 && (s[i] != '/' && s[i] != '\\')) --i; |
82893676 MG |
1450 | while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i; |
1451 | #else | |
6a738a25 JB |
1452 | while (i >= 0 && s[i] == '/') --i; |
1453 | while (i >= 0 && s[i] != '/') --i; | |
1454 | while (i >= 0 && s[i] == '/') --i; | |
82893676 | 1455 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1456 | if (i < 0) |
1457 | { | |
82893676 MG |
1458 | #ifdef __MINGW32__ |
1459 | if (len > 0 && (s[0] == '/' || s[0] == '\\')) | |
1460 | #else | |
6a738a25 | 1461 | if (len > 0 && s[0] == '/') |
82893676 | 1462 | #endif /* ndef __MINGW32__ */ |
d1ca2c64 | 1463 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); |
6a738a25 JB |
1464 | else |
1465 | return scm_dot_string; | |
1466 | } | |
1467 | else | |
d1ca2c64 | 1468 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (i + 1)); |
6a738a25 | 1469 | } |
1bbd0b84 | 1470 | #undef FUNC_NAME |
6a738a25 | 1471 | |
a1ec6916 | 1472 | SCM_DEFINE (scm_basename, "basename", 1, 1, 0, |
1bbd0b84 | 1473 | (SCM filename, SCM suffix), |
fa6a543f MG |
1474 | "Return the base name of the file name @var{filename}. The\n" |
1475 | "base name is the file name without any directory components.\n" | |
bb2c02f2 | 1476 | "If @var{suffix} is provided, and is equal to the end of\n" |
fa6a543f | 1477 | "@var{basename}, it is removed also.") |
1bbd0b84 | 1478 | #define FUNC_NAME s_scm_basename |
6a738a25 JB |
1479 | { |
1480 | char *f, *s = 0; | |
1481 | int i, j, len, end; | |
9fd38a3d | 1482 | |
34d19ef6 | 1483 | SCM_VALIDATE_STRING (1, filename); |
34f0f2b8 | 1484 | f = SCM_STRING_CHARS (filename); |
9fd38a3d DH |
1485 | len = SCM_STRING_LENGTH (filename); |
1486 | ||
6a738a25 JB |
1487 | if (SCM_UNBNDP (suffix)) |
1488 | j = -1; | |
1489 | else | |
1490 | { | |
9fd38a3d | 1491 | SCM_VALIDATE_STRING (2, suffix); |
34f0f2b8 | 1492 | s = SCM_STRING_CHARS (suffix); |
9fd38a3d | 1493 | j = SCM_STRING_LENGTH (suffix) - 1; |
6a738a25 | 1494 | } |
6a738a25 | 1495 | i = len - 1; |
82893676 MG |
1496 | #ifdef __MINGW32__ |
1497 | while (i >= 0 && (f[i] == '/' || f[i] == '\\')) --i; | |
1498 | #else | |
6a738a25 | 1499 | while (i >= 0 && f[i] == '/') --i; |
82893676 | 1500 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1501 | end = i; |
1502 | while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j; | |
1503 | if (j == -1) | |
1504 | end = i; | |
82893676 | 1505 | #ifdef __MINGW32__ |
2e945bcc | 1506 | while (i >= 0 && f[i] != '/' && f[i] != '\\') --i; |
82893676 | 1507 | #else |
6a738a25 | 1508 | while (i >= 0 && f[i] != '/') --i; |
82893676 | 1509 | #endif /* ndef __MINGW32__ */ |
6a738a25 JB |
1510 | if (i == end) |
1511 | { | |
82893676 | 1512 | #ifdef __MINGW32__ |
2e945bcc | 1513 | if (len > 0 && (f[0] == '/' || f[0] == '\\')) |
82893676 | 1514 | #else |
6a738a25 | 1515 | if (len > 0 && f[0] == '/') |
82893676 | 1516 | #endif /* ndef __MINGW32__ */ |
d1ca2c64 | 1517 | return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1)); |
6a738a25 JB |
1518 | else |
1519 | return scm_dot_string; | |
1520 | } | |
1521 | else | |
d1ca2c64 | 1522 | return scm_substring (filename, SCM_MAKINUM (i + 1), SCM_MAKINUM (end + 1)); |
6a738a25 | 1523 | } |
1bbd0b84 | 1524 | #undef FUNC_NAME |
6a738a25 JB |
1525 | |
1526 | ||
1527 | ||
1528 | \f | |
1cc91f1b | 1529 | |
0f2d19dd JB |
1530 | void |
1531 | scm_init_filesys () | |
0f2d19dd | 1532 | { |
e841c3e0 KN |
1533 | scm_tc16_dir = scm_make_smob_type ("directory", 0); |
1534 | scm_set_smob_free (scm_tc16_dir, scm_dir_free); | |
1535 | scm_set_smob_print (scm_tc16_dir, scm_dir_print); | |
0f2d19dd | 1536 | |
a163dda9 MD |
1537 | scm_dot_string = scm_permanent_object (scm_makfrom0str (".")); |
1538 | ||
3d8d56df | 1539 | #ifdef O_RDONLY |
86d31dfe | 1540 | scm_c_define ("O_RDONLY", scm_long2num (O_RDONLY)); |
3d8d56df GH |
1541 | #endif |
1542 | #ifdef O_WRONLY | |
86d31dfe | 1543 | scm_c_define ("O_WRONLY", scm_long2num (O_WRONLY)); |
3d8d56df GH |
1544 | #endif |
1545 | #ifdef O_RDWR | |
86d31dfe | 1546 | scm_c_define ("O_RDWR", scm_long2num (O_RDWR)); |
3d8d56df GH |
1547 | #endif |
1548 | #ifdef O_CREAT | |
86d31dfe | 1549 | scm_c_define ("O_CREAT", scm_long2num (O_CREAT)); |
3d8d56df GH |
1550 | #endif |
1551 | #ifdef O_EXCL | |
86d31dfe | 1552 | scm_c_define ("O_EXCL", scm_long2num (O_EXCL)); |
3d8d56df GH |
1553 | #endif |
1554 | #ifdef O_NOCTTY | |
86d31dfe | 1555 | scm_c_define ("O_NOCTTY", scm_long2num (O_NOCTTY)); |
3d8d56df GH |
1556 | #endif |
1557 | #ifdef O_TRUNC | |
86d31dfe | 1558 | scm_c_define ("O_TRUNC", scm_long2num (O_TRUNC)); |
3d8d56df GH |
1559 | #endif |
1560 | #ifdef O_APPEND | |
86d31dfe | 1561 | scm_c_define ("O_APPEND", scm_long2num (O_APPEND)); |
3d8d56df | 1562 | #endif |
6afcd3b2 | 1563 | #ifdef O_NONBLOCK |
86d31dfe | 1564 | scm_c_define ("O_NONBLOCK", scm_long2num (O_NONBLOCK)); |
3d8d56df GH |
1565 | #endif |
1566 | #ifdef O_NDELAY | |
86d31dfe | 1567 | scm_c_define ("O_NDELAY", scm_long2num (O_NDELAY)); |
3d8d56df GH |
1568 | #endif |
1569 | #ifdef O_SYNC | |
86d31dfe | 1570 | scm_c_define ("O_SYNC", scm_long2num (O_SYNC)); |
3d8d56df GH |
1571 | #endif |
1572 | ||
4c1feaa5 | 1573 | #ifdef F_DUPFD |
86d31dfe | 1574 | scm_c_define ("F_DUPFD", scm_long2num (F_DUPFD)); |
4c1feaa5 JB |
1575 | #endif |
1576 | #ifdef F_GETFD | |
86d31dfe | 1577 | scm_c_define ("F_GETFD", scm_long2num (F_GETFD)); |
4c1feaa5 JB |
1578 | #endif |
1579 | #ifdef F_SETFD | |
86d31dfe | 1580 | scm_c_define ("F_SETFD", scm_long2num (F_SETFD)); |
4c1feaa5 JB |
1581 | #endif |
1582 | #ifdef F_GETFL | |
86d31dfe | 1583 | scm_c_define ("F_GETFL", scm_long2num (F_GETFL)); |
4c1feaa5 JB |
1584 | #endif |
1585 | #ifdef F_SETFL | |
86d31dfe | 1586 | scm_c_define ("F_SETFL", scm_long2num (F_SETFL)); |
4c1feaa5 JB |
1587 | #endif |
1588 | #ifdef F_GETOWN | |
86d31dfe | 1589 | scm_c_define ("F_GETOWN", scm_long2num (F_GETOWN)); |
4c1feaa5 JB |
1590 | #endif |
1591 | #ifdef F_SETOWN | |
86d31dfe | 1592 | scm_c_define ("F_SETOWN", scm_long2num (F_SETOWN)); |
4c1feaa5 JB |
1593 | #endif |
1594 | #ifdef FD_CLOEXEC | |
86d31dfe | 1595 | scm_c_define ("FD_CLOEXEC", scm_long2num (FD_CLOEXEC)); |
bd9e24b3 | 1596 | #endif |
3d8d56df | 1597 | |
a0599745 | 1598 | #include "libguile/filesys.x" |
0f2d19dd | 1599 | } |
89e00824 ML |
1600 | |
1601 | /* | |
1602 | Local Variables: | |
1603 | c-file-style: "gnu" | |
1604 | End: | |
1605 | */ |