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1fac938e | 1 | /**************************************************************************** |
2 | * * | |
3 | * GNAT COMPILER COMPONENTS * | |
4 | * * | |
5 | * A D A I N T * | |
6 | * * | |
1fac938e | 7 | * C Implementation File * |
8 | * * | |
e9c75a1a | 9 | * Copyright (C) 1992-2019, Free Software Foundation, Inc. * |
1fac938e | 10 | * * |
11 | * GNAT is free software; you can redistribute it and/or modify it under * | |
12 | * terms of the GNU General Public License as published by the Free Soft- * | |
6bc9506f | 13 | * ware Foundation; either version 3, or (at your option) any later ver- * |
1fac938e | 14 | * sion. GNAT is distributed in the hope that it will be useful, but WITH- * |
15 | * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * | |
6bc9506f | 16 | * or FITNESS FOR A PARTICULAR PURPOSE. * |
17 | * * | |
18 | * As a special exception under Section 7 of GPL version 3, you are granted * | |
19 | * additional permissions described in the GCC Runtime Library Exception, * | |
20 | * version 3.1, as published by the Free Software Foundation. * | |
21 | * * | |
22 | * You should have received a copy of the GNU General Public License and * | |
23 | * a copy of the GCC Runtime Library Exception along with this program; * | |
24 | * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see * | |
25 | * <http://www.gnu.org/licenses/>. * | |
1fac938e | 26 | * * |
27 | * GNAT was originally developed by the GNAT team at New York University. * | |
e78e8c8e | 28 | * Extensive contributions were provided by Ada Core Technologies Inc. * |
1fac938e | 29 | * * |
30 | ****************************************************************************/ | |
31 | ||
f15731c4 | 32 | /* This file contains those routines named by Import pragmas in |
33 | packages in the GNAT hierarchy (especially GNAT.OS_Lib) and in | |
34 | package Osint. Many of the subprograms in OS_Lib import standard | |
35 | library calls directly. This file contains all other routines. */ | |
1fac938e | 36 | |
360f426f | 37 | /* Ensure access to errno is thread safe. */ |
543c8be5 | 38 | #define _REENTRANT |
39 | #define _THREAD_SAFE | |
40 | ||
42833c7b | 41 | /* Use 64 bit Large File API */ |
fcaeb9c7 | 42 | #if defined (__QNX__) |
43 | #define _LARGEFILE64_SOURCE 1 | |
44 | #elif !defined(_LARGEFILE_SOURCE) | |
42833c7b | 45 | #define _LARGEFILE_SOURCE |
46 | #endif | |
47 | #define _FILE_OFFSET_BITS 64 | |
48 | ||
1fac938e | 49 | #ifdef __vxworks |
f15731c4 | 50 | |
51 | /* No need to redefine exit here. */ | |
1fac938e | 52 | #undef exit |
f15731c4 | 53 | |
1fac938e | 54 | /* We want to use the POSIX variants of include files. */ |
55 | #define POSIX | |
56 | #include "vxWorks.h" | |
57 | ||
58 | #if defined (__mips_vxworks) | |
59 | #include "cacheLib.h" | |
60 | #endif /* __mips_vxworks */ | |
61 | ||
0f4d3df5 | 62 | /* If SMP, access vxCpuConfiguredGet */ |
63 | #ifdef _WRS_CONFIG_SMP | |
64 | #include <vxCpuLib.h> | |
65 | #endif /* _WRS_CONFIG_SMP */ | |
66 | ||
b07bcda8 | 67 | /* We need to know the VxWorks version because some file operations |
68 | (such as chmod) are only available on VxWorks 6. */ | |
69 | #include "version.h" | |
70 | ||
1fac938e | 71 | #endif /* VxWorks */ |
72 | ||
5641963c | 73 | #if defined (__APPLE__) |
90bc406c | 74 | #include <unistd.h> |
75 | #endif | |
76 | ||
77 | #if defined (__hpux__) | |
78 | #include <sys/param.h> | |
79 | #include <sys/pstat.h> | |
80 | #endif | |
81 | ||
8cb1db0d | 82 | #ifdef __PikeOS__ |
83 | #define __BSD_VISIBLE 1 | |
84 | #endif | |
85 | ||
fcaeb9c7 | 86 | #ifdef __QNX__ |
87 | #include <sys/syspage.h> | |
12316430 | 88 | #endif |
89 | ||
1fac938e | 90 | #ifdef IN_RTS |
0c41e160 | 91 | |
92 | #ifdef STANDALONE | |
93 | #include <errno.h> | |
94 | #include <sys/types.h> | |
95 | #include <sys/stat.h> | |
96 | #include <unistd.h> | |
97 | #include <stdlib.h> | |
98 | #include <string.h> | |
99 | ||
100 | /* for CPU_SET/CPU_ZERO */ | |
101 | #define _GNU_SOURCE | |
102 | #define __USE_GNU | |
103 | ||
104 | #include "runtime.h" | |
105 | ||
106 | #else | |
1fac938e | 107 | #include "tconfig.h" |
108 | #include "tsystem.h" | |
0c41e160 | 109 | #endif |
110 | ||
1fac938e | 111 | #include <sys/stat.h> |
112 | #include <fcntl.h> | |
113 | #include <time.h> | |
114 | ||
b261877a | 115 | #if defined (__vxworks) || defined (__ANDROID__) |
116 | /* S_IREAD and S_IWRITE are not defined in VxWorks or Android */ | |
b07bcda8 | 117 | #ifndef S_IREAD |
118 | #define S_IREAD (S_IRUSR | S_IRGRP | S_IROTH) | |
119 | #endif | |
120 | ||
121 | #ifndef S_IWRITE | |
122 | #define S_IWRITE (S_IWUSR) | |
123 | #endif | |
124 | #endif | |
125 | ||
f15731c4 | 126 | /* We don't have libiberty, so use malloc. */ |
1fac938e | 127 | #define xmalloc(S) malloc (S) |
f15731c4 | 128 | #define xrealloc(V,S) realloc (V,S) |
1fac938e | 129 | #else |
130 | #include "config.h" | |
131 | #include "system.h" | |
e2c62f37 | 132 | #include "version.h" |
1fac938e | 133 | #endif |
9dfe12ae | 134 | |
e78e02f9 | 135 | #ifdef __cplusplus |
136 | extern "C" { | |
137 | #endif | |
138 | ||
f28fa6a2 | 139 | #if defined (__DJGPP__) |
140 | ||
141 | /* For isalpha-like tests in the compiler, we're expected to resort to | |
142 | safe-ctype.h/ISALPHA. This isn't available for the runtime library | |
143 | build, so we fallback on ctype.h/isalpha there. */ | |
144 | ||
145 | #ifdef IN_RTS | |
146 | #include <ctype.h> | |
147 | #define ISALPHA isalpha | |
148 | #endif | |
149 | ||
150 | #elif defined (__MINGW32__) || defined (__CYGWIN__) | |
fa0b5df1 | 151 | |
9dfe12ae | 152 | #include "mingw32.h" |
f60cc57d | 153 | |
a360a0f7 | 154 | /* Current code page and CCS encoding to use, set in initialize.c. */ |
738ec25b | 155 | UINT __gnat_current_codepage; |
156 | UINT __gnat_current_ccs_encoding; | |
fa0b5df1 | 157 | |
9dfe12ae | 158 | #include <sys/utime.h> |
a4f295eb | 159 | |
160 | /* For isalpha-like tests in the compiler, we're expected to resort to | |
161 | safe-ctype.h/ISALPHA. This isn't available for the runtime library | |
162 | build, so we fallback on ctype.h/isalpha there. */ | |
163 | ||
164 | #ifdef IN_RTS | |
f0a28ccb | 165 | #include <ctype.h> |
a4f295eb | 166 | #define ISALPHA isalpha |
167 | #endif | |
2359306a | 168 | |
169 | #elif defined (__Lynx__) | |
170 | ||
171 | /* Lynx utime.h only defines the entities of interest to us if | |
172 | defined (VMOS_DEV), so ... */ | |
173 | #define VMOS_DEV | |
174 | #include <utime.h> | |
175 | #undef VMOS_DEV | |
176 | ||
3897a124 | 177 | #else |
9dfe12ae | 178 | #include <utime.h> |
9dfe12ae | 179 | #endif |
180 | ||
5091bc2f | 181 | /* wait.h processing */ |
9dfe12ae | 182 | #ifdef __MINGW32__ |
8cb1db0d | 183 | # if OLD_MINGW |
184 | # include <sys/wait.h> | |
185 | # endif | |
8ffbc401 | 186 | #elif defined (__vxworks) && defined (__RTP__) |
8cb1db0d | 187 | # include <wait.h> |
2359306a | 188 | #elif defined (__Lynx__) |
189 | /* ??? We really need wait.h and it includes resource.h on Lynx. GCC | |
190 | has a resource.h header as well, included instead of the lynx | |
191 | version in our setup, causing lots of errors. We don't really need | |
192 | the lynx contents of this file, so just workaround the issue by | |
193 | preventing the inclusion of the GCC header from doing anything. */ | |
8cb1db0d | 194 | # define GCC_RESOURCE_H |
195 | # include <sys/wait.h> | |
b85b7cb2 | 196 | #elif defined (__PikeOS__) |
24d7b9d6 | 197 | /* No wait() or waitpid() calls available. */ |
9dfe12ae | 198 | #else |
24d7b9d6 | 199 | /* Default case. */ |
9dfe12ae | 200 | #include <sys/wait.h> |
201 | #endif | |
1fac938e | 202 | |
f28fa6a2 | 203 | #if defined (__DJGPP__) |
1fac938e | 204 | #include <process.h> |
f3c46219 | 205 | #include <signal.h> |
1fac938e | 206 | #include <dir.h> |
f28fa6a2 | 207 | #include <utime.h> |
208 | #undef DIR_SEPARATOR | |
209 | #define DIR_SEPARATOR '\\' | |
210 | ||
211 | #elif defined (_WIN32) | |
212 | ||
1fac938e | 213 | #include <windows.h> |
7db1ef17 | 214 | #include <accctrl.h> |
215 | #include <aclapi.h> | |
1a461737 | 216 | #include <tlhelp32.h> |
4a611e13 | 217 | #include <signal.h> |
fef772a5 | 218 | #undef DIR_SEPARATOR |
219 | #define DIR_SEPARATOR '\\' | |
3897a124 | 220 | |
221 | #else | |
222 | #include <utime.h> | |
1fac938e | 223 | #endif |
224 | ||
225 | #include "adaint.h" | |
226 | ||
227 | /* Define symbols O_BINARY and O_TEXT as harmless zeroes if they are not | |
228 | defined in the current system. On DOS-like systems these flags control | |
229 | whether the file is opened/created in text-translation mode (CR/LF in | |
230 | external file mapped to LF in internal file), but in Unix-like systems, | |
231 | no text translation is required, so these flags have no effect. */ | |
232 | ||
1fac938e | 233 | #ifndef O_BINARY |
234 | #define O_BINARY 0 | |
235 | #endif | |
236 | ||
237 | #ifndef O_TEXT | |
238 | #define O_TEXT 0 | |
239 | #endif | |
240 | ||
241 | #ifndef HOST_EXECUTABLE_SUFFIX | |
242 | #define HOST_EXECUTABLE_SUFFIX "" | |
243 | #endif | |
244 | ||
245 | #ifndef HOST_OBJECT_SUFFIX | |
246 | #define HOST_OBJECT_SUFFIX ".o" | |
247 | #endif | |
248 | ||
249 | #ifndef PATH_SEPARATOR | |
250 | #define PATH_SEPARATOR ':' | |
251 | #endif | |
252 | ||
253 | #ifndef DIR_SEPARATOR | |
254 | #define DIR_SEPARATOR '/' | |
255 | #endif | |
256 | ||
24d7b9d6 | 257 | /* Check for cross-compilation. */ |
8c7d3bad | 258 | #if defined (CROSS_COMPILE) || defined (CROSS_DIRECTORY_STRUCTURE) |
259 | #define IS_CROSS 1 | |
a3b0f4f2 | 260 | int __gnat_is_cross_compiler = 1; |
261 | #else | |
8c7d3bad | 262 | #undef IS_CROSS |
a3b0f4f2 | 263 | int __gnat_is_cross_compiler = 0; |
264 | #endif | |
265 | ||
1fac938e | 266 | char __gnat_dir_separator = DIR_SEPARATOR; |
267 | ||
268 | char __gnat_path_separator = PATH_SEPARATOR; | |
269 | ||
270 | /* The GNAT_LIBRARY_TEMPLATE contains a list of expressions that define | |
271 | the base filenames that libraries specified with -lsomelib options | |
272 | may have. This is used by GNATMAKE to check whether an executable | |
273 | is up-to-date or not. The syntax is | |
274 | ||
275 | library_template ::= { pattern ; } pattern NUL | |
276 | pattern ::= [ prefix ] * [ postfix ] | |
277 | ||
278 | These should only specify names of static libraries as it makes | |
279 | no sense to determine at link time if dynamic-link libraries are | |
280 | up to date or not. Any libraries that are not found are supposed | |
281 | to be up-to-date: | |
282 | ||
283 | * if they are needed but not present, the link | |
284 | will fail, | |
285 | ||
286 | * otherwise they are libraries in the system paths and so | |
287 | they are considered part of the system and not checked | |
288 | for that reason. | |
289 | ||
290 | ??? This should be part of a GNAT host-specific compiler | |
291 | file instead of being included in all user applications | |
f15731c4 | 292 | as well. This is only a temporary work-around for 3.11b. */ |
1fac938e | 293 | |
294 | #ifndef GNAT_LIBRARY_TEMPLATE | |
1fac938e | 295 | #define GNAT_LIBRARY_TEMPLATE "lib*.a" |
296 | #endif | |
1fac938e | 297 | |
298 | const char *__gnat_library_template = GNAT_LIBRARY_TEMPLATE; | |
299 | ||
b85b7cb2 | 300 | #if defined (__vxworks) |
9dfe12ae | 301 | #define GNAT_MAX_PATH_LEN PATH_MAX |
302 | ||
303 | #else | |
304 | ||
305 | #if defined (__MINGW32__) | |
306 | #include "mingw32.h" | |
307 | ||
308 | #if OLD_MINGW | |
309 | #include <sys/param.h> | |
310 | #endif | |
e633acdc | 311 | |
312 | #else | |
313 | #include <sys/param.h> | |
9dfe12ae | 314 | #endif |
315 | ||
8ae72cac | 316 | #ifdef MAXPATHLEN |
9dfe12ae | 317 | #define GNAT_MAX_PATH_LEN MAXPATHLEN |
8ae72cac | 318 | #else |
319 | #define GNAT_MAX_PATH_LEN 256 | |
320 | #endif | |
e633acdc | 321 | |
322 | #endif | |
323 | ||
28a4283c | 324 | /* Used for runtime check that Ada constant File_Attributes_Size is no |
325 | less than the actual size of struct file_attributes (see Osint | |
326 | initialization). */ | |
becb63f5 | 327 | int __gnat_size_of_file_attributes = sizeof (struct file_attributes); |
5f93bcbf | 328 | |
5f93bcbf | 329 | void __gnat_stat_to_attr (int fd, char* name, struct file_attributes* attr); |
330 | ||
9dfe12ae | 331 | /* The __gnat_max_path_len variable is used to export the maximum |
332 | length of a path name to Ada code. max_path_len is also provided | |
333 | for compatibility with older GNAT versions, please do not use | |
334 | it. */ | |
335 | ||
336 | int __gnat_max_path_len = GNAT_MAX_PATH_LEN; | |
337 | int max_path_len = GNAT_MAX_PATH_LEN; | |
338 | ||
2726b813 | 339 | /* Control whether we can use ACL on Windows. */ |
340 | ||
341 | int __gnat_use_acl = 1; | |
342 | ||
1fac938e | 343 | /* The following macro HAVE_READDIR_R should be defined if the |
dba38d2f | 344 | system provides the routine readdir_r. |
345 | ... but we never define it anywhere??? */ | |
1fac938e | 346 | #undef HAVE_READDIR_R |
35475a84 | 347 | |
6d9c3443 | 348 | #define MAYBE_TO_PTR32(argv) argv |
6d9c3443 | 349 | |
44fef051 | 350 | static const char ATTR_UNSET = 127; |
bce992c9 | 351 | |
77416989 | 352 | /* Reset the file attributes as if no system call had been performed */ |
353 | ||
5f93bcbf | 354 | void |
24d7b9d6 | 355 | __gnat_reset_attributes (struct file_attributes* attr) |
5f93bcbf | 356 | { |
bce992c9 | 357 | attr->exists = ATTR_UNSET; |
28a4283c | 358 | attr->error = EINVAL; |
5f93bcbf | 359 | |
bce992c9 | 360 | attr->writable = ATTR_UNSET; |
361 | attr->readable = ATTR_UNSET; | |
362 | attr->executable = ATTR_UNSET; | |
5f93bcbf | 363 | |
bce992c9 | 364 | attr->regular = ATTR_UNSET; |
365 | attr->symbolic_link = ATTR_UNSET; | |
366 | attr->directory = ATTR_UNSET; | |
5f93bcbf | 367 | |
368 | attr->timestamp = (OS_Time)-2; | |
369 | attr->file_length = -1; | |
370 | } | |
371 | ||
28a4283c | 372 | int |
373 | __gnat_error_attributes (struct file_attributes *attr) { | |
374 | return attr->error; | |
375 | } | |
376 | ||
1e622f0e | 377 | OS_Time |
24d7b9d6 | 378 | __gnat_current_time (void) |
1e622f0e | 379 | { |
380 | time_t res = time (NULL); | |
381 | return (OS_Time) res; | |
382 | } | |
383 | ||
a17c817e | 384 | /* Return the current local time as a string in the ISO 8601 format of |
385 | "YYYY-MM-DD HH:MM:SS.SS". The returned string is 22 + 1 (NULL) characters | |
386 | long. */ | |
387 | ||
388 | void | |
24d7b9d6 | 389 | __gnat_current_time_string (char *result) |
a17c817e | 390 | { |
391 | const char *format = "%Y-%m-%d %H:%M:%S"; | |
392 | /* Format string necessary to describe the ISO 8601 format */ | |
393 | ||
394 | const time_t t_val = time (NULL); | |
395 | ||
396 | strftime (result, 22, format, localtime (&t_val)); | |
397 | /* Convert the local time into a string following the ISO format, copying | |
398 | at most 22 characters into the result string. */ | |
399 | ||
400 | result [19] = '.'; | |
401 | result [20] = '0'; | |
402 | result [21] = '0'; | |
403 | /* The sub-seconds are manually set to zero since type time_t lacks the | |
404 | precision necessary for nanoseconds. */ | |
405 | } | |
406 | ||
1fac938e | 407 | void |
24d7b9d6 | 408 | __gnat_to_gm_time (OS_Time *p_time, int *p_year, int *p_month, int *p_day, |
409 | int *p_hours, int *p_mins, int *p_secs) | |
1fac938e | 410 | { |
411 | struct tm *res; | |
9dfe12ae | 412 | time_t time = (time_t) *p_time; |
1fac938e | 413 | |
1fac938e | 414 | res = gmtime (&time); |
1fac938e | 415 | if (res) |
416 | { | |
417 | *p_year = res->tm_year; | |
418 | *p_month = res->tm_mon; | |
419 | *p_day = res->tm_mday; | |
420 | *p_hours = res->tm_hour; | |
421 | *p_mins = res->tm_min; | |
422 | *p_secs = res->tm_sec; | |
f15731c4 | 423 | } |
1fac938e | 424 | else |
425 | *p_year = *p_month = *p_day = *p_hours = *p_mins = *p_secs = 0; | |
426 | } | |
427 | ||
2a68b2f5 | 428 | void |
429 | __gnat_to_os_time (OS_Time *p_time, int year, int month, int day, | |
430 | int hours, int mins, int secs) | |
431 | { | |
432 | struct tm v; | |
433 | ||
434 | v.tm_year = year; | |
435 | v.tm_mon = month; | |
436 | v.tm_mday = day; | |
437 | v.tm_hour = hours; | |
438 | v.tm_min = mins; | |
439 | v.tm_sec = secs; | |
51f09f19 | 440 | v.tm_isdst = -1; |
2a68b2f5 | 441 | |
442 | /* returns -1 of failing, this is s-os_lib Invalid_Time */ | |
443 | ||
444 | *p_time = (OS_Time) mktime (&v); | |
445 | } | |
446 | ||
1fac938e | 447 | /* Place the contents of the symbolic link named PATH in the buffer BUF, |
448 | which has size BUFSIZ. If PATH is a symbolic link, then return the number | |
5091bc2f | 449 | of characters of its content in BUF. Otherwise, return -1. |
450 | For systems not supporting symbolic links, always return -1. */ | |
1fac938e | 451 | |
9dfe12ae | 452 | int |
f0a28ccb | 453 | __gnat_readlink (char *path ATTRIBUTE_UNUSED, |
454 | char *buf ATTRIBUTE_UNUSED, | |
455 | size_t bufsiz ATTRIBUTE_UNUSED) | |
1fac938e | 456 | { |
3897a124 | 457 | #if defined (_WIN32) \ |
b85b7cb2 | 458 | || defined(__vxworks) || defined (__PikeOS__) |
1fac938e | 459 | return -1; |
460 | #else | |
461 | return readlink (path, buf, bufsiz); | |
462 | #endif | |
463 | } | |
464 | ||
5091bc2f | 465 | /* Creates a symbolic link named NEWPATH which contains the string OLDPATH. |
466 | If NEWPATH exists it will NOT be overwritten. | |
467 | For systems not supporting symbolic links, always return -1. */ | |
1fac938e | 468 | |
469 | int | |
f0a28ccb | 470 | __gnat_symlink (char *oldpath ATTRIBUTE_UNUSED, |
471 | char *newpath ATTRIBUTE_UNUSED) | |
1fac938e | 472 | { |
3897a124 | 473 | #if defined (_WIN32) \ |
b85b7cb2 | 474 | || defined(__vxworks) || defined (__PikeOS__) |
1fac938e | 475 | return -1; |
476 | #else | |
477 | return symlink (oldpath, newpath); | |
478 | #endif | |
479 | } | |
480 | ||
f15731c4 | 481 | /* Try to lock a file, return 1 if success. */ |
1fac938e | 482 | |
b85b7cb2 | 483 | #if defined (__vxworks) \ |
3897a124 | 484 | || defined (_WIN32) || defined (__PikeOS__) |
1fac938e | 485 | |
486 | /* Version that does not use link. */ | |
487 | ||
488 | int | |
9dfe12ae | 489 | __gnat_try_lock (char *dir, char *file) |
1fac938e | 490 | { |
1fac938e | 491 | int fd; |
3b18b370 | 492 | #ifdef __MINGW32__ |
493 | TCHAR wfull_path[GNAT_MAX_PATH_LEN]; | |
494 | TCHAR wfile[GNAT_MAX_PATH_LEN]; | |
495 | TCHAR wdir[GNAT_MAX_PATH_LEN]; | |
496 | ||
f60cc57d | 497 | S2WSC (wdir, dir, GNAT_MAX_PATH_LEN); |
498 | S2WSC (wfile, file, GNAT_MAX_PATH_LEN); | |
3b18b370 | 499 | |
658ba466 | 500 | /* ??? the code below crash on MingW64 for obscure reasons, a ticket |
501 | has been opened here: | |
502 | ||
503 | https://sourceforge.net/p/mingw-w64/bugs/414/ | |
504 | ||
505 | As a workaround an equivalent set of code has been put in place below. | |
506 | ||
3b18b370 | 507 | _stprintf (wfull_path, _T("%s%c%s"), wdir, _T(DIR_SEPARATOR), wfile); |
658ba466 | 508 | */ |
509 | ||
510 | _tcscpy (wfull_path, wdir); | |
511 | _tcscat (wfull_path, L"\\"); | |
512 | _tcscat (wfull_path, wfile); | |
513 | ||
3b18b370 | 514 | fd = _topen (wfull_path, O_CREAT | O_EXCL, 0600); |
515 | #else | |
516 | char full_path[256]; | |
1fac938e | 517 | |
518 | sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); | |
519 | fd = open (full_path, O_CREAT | O_EXCL, 0600); | |
3b18b370 | 520 | #endif |
521 | ||
f15731c4 | 522 | if (fd < 0) |
1fac938e | 523 | return 0; |
f15731c4 | 524 | |
1fac938e | 525 | close (fd); |
526 | return 1; | |
527 | } | |
528 | ||
1fac938e | 529 | #else |
f15731c4 | 530 | |
1fac938e | 531 | /* Version using link(), more secure over NFS. */ |
9dfe12ae | 532 | /* See TN 6913-016 for discussion ??? */ |
1fac938e | 533 | |
534 | int | |
9dfe12ae | 535 | __gnat_try_lock (char *dir, char *file) |
1fac938e | 536 | { |
f15731c4 | 537 | char full_path[256]; |
538 | char temp_file[256]; | |
8cb516d7 | 539 | GNAT_STRUCT_STAT stat_result; |
1fac938e | 540 | int fd; |
541 | ||
542 | sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); | |
4a3f445c | 543 | sprintf (temp_file, "%s%cTMP-%ld-%ld", |
544 | dir, DIR_SEPARATOR, (long)getpid(), (long)getppid ()); | |
1fac938e | 545 | |
f15731c4 | 546 | /* Create the temporary file and write the process number. */ |
1fac938e | 547 | fd = open (temp_file, O_CREAT | O_WRONLY, 0600); |
548 | if (fd < 0) | |
549 | return 0; | |
550 | ||
551 | close (fd); | |
552 | ||
f15731c4 | 553 | /* Link it with the new file. */ |
1fac938e | 554 | link (temp_file, full_path); |
555 | ||
556 | /* Count the references on the old one. If we have a count of two, then | |
f15731c4 | 557 | the link did succeed. Remove the temporary file before returning. */ |
1fac938e | 558 | __gnat_stat (temp_file, &stat_result); |
559 | unlink (temp_file); | |
560 | return stat_result.st_nlink == 2; | |
561 | } | |
562 | #endif | |
563 | ||
564 | /* Return the maximum file name length. */ | |
565 | ||
566 | int | |
6f2c2693 | 567 | __gnat_get_maximum_file_name_length (void) |
1fac938e | 568 | { |
1fac938e | 569 | return -1; |
1fac938e | 570 | } |
571 | ||
1fac938e | 572 | /* Return nonzero if file names are case sensitive. */ |
573 | ||
cda81c7b | 574 | static int file_names_case_sensitive_cache = -1; |
575 | ||
1fac938e | 576 | int |
6f2c2693 | 577 | __gnat_get_file_names_case_sensitive (void) |
1fac938e | 578 | { |
cda81c7b | 579 | if (file_names_case_sensitive_cache == -1) |
580 | { | |
581 | const char *sensitive = getenv ("GNAT_FILE_NAME_CASE_SENSITIVE"); | |
cd2495b4 | 582 | |
cda81c7b | 583 | if (sensitive != NULL |
584 | && (sensitive[0] == '0' || sensitive[0] == '1') | |
585 | && sensitive[1] == '\0') | |
586 | file_names_case_sensitive_cache = sensitive[0] - '0'; | |
587 | else | |
64f44677 | 588 | { |
589 | /* By default, we suppose filesystems aren't case sensitive on | |
590 | Windows and Darwin (but they are on arm-darwin). */ | |
f28fa6a2 | 591 | #if defined (WINNT) || defined (__DJGPP__) \ |
11cf765a | 592 | || (defined (__APPLE__) && !(defined (__arm__) || defined (__arm64__))) |
64f44677 | 593 | file_names_case_sensitive_cache = 0; |
1fac938e | 594 | #else |
64f44677 | 595 | file_names_case_sensitive_cache = 1; |
1fac938e | 596 | #endif |
64f44677 | 597 | } |
cda81c7b | 598 | } |
599 | return file_names_case_sensitive_cache; | |
1fac938e | 600 | } |
601 | ||
a027cdc7 | 602 | /* Return nonzero if environment variables are case sensitive. */ |
603 | ||
604 | int | |
605 | __gnat_get_env_vars_case_sensitive (void) | |
606 | { | |
f28fa6a2 | 607 | #if defined (WINNT) || defined (__DJGPP__) |
a027cdc7 | 608 | return 0; |
609 | #else | |
610 | return 1; | |
611 | #endif | |
612 | } | |
613 | ||
1fac938e | 614 | char |
6f2c2693 | 615 | __gnat_get_default_identifier_character_set (void) |
1fac938e | 616 | { |
1fac938e | 617 | return '1'; |
1fac938e | 618 | } |
619 | ||
f15731c4 | 620 | /* Return the current working directory. */ |
1fac938e | 621 | |
622 | void | |
9dfe12ae | 623 | __gnat_get_current_dir (char *dir, int *length) |
1fac938e | 624 | { |
3b18b370 | 625 | #if defined (__MINGW32__) |
626 | TCHAR wdir[GNAT_MAX_PATH_LEN]; | |
627 | ||
628 | _tgetcwd (wdir, *length); | |
629 | ||
f60cc57d | 630 | WS2SC (dir, wdir, GNAT_MAX_PATH_LEN); |
3b18b370 | 631 | |
1fac938e | 632 | #else |
5bcff344 | 633 | char* result = getcwd (dir, *length); |
634 | /* If the current directory does not exist, set length = 0 | |
635 | to indicate error. That can't happen on windows, where | |
636 | you can't delete a directory if it is the current | |
637 | directory of some process. */ | |
638 | if (!result) | |
639 | { | |
640 | *length = 0; | |
641 | return; | |
642 | } | |
1fac938e | 643 | #endif |
644 | ||
645 | *length = strlen (dir); | |
646 | ||
9dfe12ae | 647 | if (dir [*length - 1] != DIR_SEPARATOR) |
648 | { | |
649 | dir [*length] = DIR_SEPARATOR; | |
650 | ++(*length); | |
651 | } | |
f15731c4 | 652 | dir[*length] = '\0'; |
1fac938e | 653 | } |
654 | ||
f15731c4 | 655 | /* Return the suffix for object files. */ |
1fac938e | 656 | |
657 | void | |
9dfe12ae | 658 | __gnat_get_object_suffix_ptr (int *len, const char **value) |
1fac938e | 659 | { |
660 | *value = HOST_OBJECT_SUFFIX; | |
661 | ||
662 | if (*value == 0) | |
663 | *len = 0; | |
664 | else | |
665 | *len = strlen (*value); | |
666 | ||
667 | return; | |
668 | } | |
669 | ||
f15731c4 | 670 | /* Return the suffix for executable files. */ |
1fac938e | 671 | |
672 | void | |
9dfe12ae | 673 | __gnat_get_executable_suffix_ptr (int *len, const char **value) |
1fac938e | 674 | { |
675 | *value = HOST_EXECUTABLE_SUFFIX; | |
5e8c91e3 | 676 | |
1fac938e | 677 | if (!*value) |
678 | *len = 0; | |
679 | else | |
680 | *len = strlen (*value); | |
681 | ||
682 | return; | |
683 | } | |
684 | ||
685 | /* Return the suffix for debuggable files. Usually this is the same as the | |
f15731c4 | 686 | executable extension. */ |
1fac938e | 687 | |
688 | void | |
9dfe12ae | 689 | __gnat_get_debuggable_suffix_ptr (int *len, const char **value) |
1fac938e | 690 | { |
1fac938e | 691 | *value = HOST_EXECUTABLE_SUFFIX; |
1fac938e | 692 | |
693 | if (*value == 0) | |
694 | *len = 0; | |
695 | else | |
696 | *len = strlen (*value); | |
697 | ||
698 | return; | |
699 | } | |
700 | ||
1aa4b9ce | 701 | /* Returns the OS filename and corresponding encoding. */ |
702 | ||
703 | void | |
12e8797f | 704 | __gnat_os_filename (char *filename ATTRIBUTE_UNUSED, |
705 | char *w_filename ATTRIBUTE_UNUSED, | |
1aa4b9ce | 706 | char *os_name, int *o_length, |
c62e34a4 | 707 | char *encoding ATTRIBUTE_UNUSED, int *e_length) |
1aa4b9ce | 708 | { |
8c7d3bad | 709 | #if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) |
7bb7733e | 710 | WS2SC (os_name, (TCHAR *)w_filename, (DWORD)*o_length); |
1aa4b9ce | 711 | *o_length = strlen (os_name); |
712 | strcpy (encoding, "encoding=utf8"); | |
713 | *e_length = strlen (encoding); | |
714 | #else | |
715 | strcpy (os_name, filename); | |
716 | *o_length = strlen (filename); | |
717 | *e_length = 0; | |
718 | #endif | |
719 | } | |
720 | ||
13320214 | 721 | /* Delete a file. */ |
722 | ||
723 | int | |
724 | __gnat_unlink (char *path) | |
725 | { | |
8c7d3bad | 726 | #if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) |
13320214 | 727 | { |
728 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
729 | ||
f60cc57d | 730 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
13320214 | 731 | return _tunlink (wpath); |
732 | } | |
733 | #else | |
734 | return unlink (path); | |
735 | #endif | |
736 | } | |
737 | ||
738 | /* Rename a file. */ | |
739 | ||
740 | int | |
741 | __gnat_rename (char *from, char *to) | |
742 | { | |
8c7d3bad | 743 | #if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) |
13320214 | 744 | { |
745 | TCHAR wfrom[GNAT_MAX_PATH_LEN], wto[GNAT_MAX_PATH_LEN]; | |
746 | ||
f60cc57d | 747 | S2WSC (wfrom, from, GNAT_MAX_PATH_LEN); |
748 | S2WSC (wto, to, GNAT_MAX_PATH_LEN); | |
13320214 | 749 | return _trename (wfrom, wto); |
750 | } | |
751 | #else | |
752 | return rename (from, to); | |
753 | #endif | |
754 | } | |
755 | ||
a8d94a8f | 756 | /* Changing directory. */ |
757 | ||
758 | int | |
759 | __gnat_chdir (char *path) | |
760 | { | |
8c7d3bad | 761 | #if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) |
a8d94a8f | 762 | { |
763 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
764 | ||
f60cc57d | 765 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
a8d94a8f | 766 | return _tchdir (wpath); |
767 | } | |
768 | #else | |
769 | return chdir (path); | |
770 | #endif | |
771 | } | |
772 | ||
437991c2 | 773 | /* Removing a directory. */ |
774 | ||
775 | int | |
776 | __gnat_rmdir (char *path) | |
777 | { | |
8c7d3bad | 778 | #if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) |
437991c2 | 779 | { |
780 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
781 | ||
f60cc57d | 782 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
437991c2 | 783 | return _trmdir (wpath); |
784 | } | |
2db7aef0 | 785 | #elif defined (VTHREADS) |
786 | /* rmdir not available */ | |
787 | return -1; | |
437991c2 | 788 | #else |
789 | return rmdir (path); | |
790 | #endif | |
791 | } | |
792 | ||
3d230452 | 793 | #if defined (_WIN32) || defined (__linux__) || defined (__sun__) \ |
12316430 | 794 | || defined (__FreeBSD__) || defined(__DragonFly__) || defined (__QNX__) |
5cf1cbbb | 795 | #define HAS_TARGET_WCHAR_T |
796 | #endif | |
797 | ||
798 | #ifdef HAS_TARGET_WCHAR_T | |
799 | #include <wchar.h> | |
800 | #endif | |
801 | ||
7601c9a8 | 802 | int |
803 | __gnat_fputwc(int c, FILE *stream) | |
804 | { | |
5cf1cbbb | 805 | #ifdef HAS_TARGET_WCHAR_T |
7601c9a8 | 806 | return fputwc ((wchar_t)c, stream); |
807 | #else | |
808 | return fputc (c, stream); | |
809 | #endif | |
810 | } | |
811 | ||
e2c62f37 | 812 | FILE * |
9c8f71d4 | 813 | __gnat_fopen (char *path, char *mode, int encoding ATTRIBUTE_UNUSED) |
e2c62f37 | 814 | { |
8c7d3bad | 815 | #if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) |
e2c62f37 | 816 | TCHAR wpath[GNAT_MAX_PATH_LEN]; |
817 | TCHAR wmode[10]; | |
818 | ||
e2c62f37 | 819 | S2WS (wmode, mode, 10); |
1e622f0e | 820 | |
f60cc57d | 821 | if (encoding == Encoding_Unspecified) |
822 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); | |
823 | else if (encoding == Encoding_UTF8) | |
1e622f0e | 824 | S2WSU (wpath, path, GNAT_MAX_PATH_LEN); |
825 | else | |
826 | S2WS (wpath, path, GNAT_MAX_PATH_LEN); | |
827 | ||
e2c62f37 | 828 | return _tfopen (wpath, wmode); |
3897a124 | 829 | |
e2c62f37 | 830 | #else |
8cb516d7 | 831 | return GNAT_FOPEN (path, mode); |
7465a8fe | 832 | #endif |
e2c62f37 | 833 | } |
834 | ||
e2c62f37 | 835 | FILE * |
d9c927cc | 836 | __gnat_freopen (char *path, |
837 | char *mode, | |
838 | FILE *stream, | |
9c8f71d4 | 839 | int encoding ATTRIBUTE_UNUSED) |
e2c62f37 | 840 | { |
8c7d3bad | 841 | #if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) |
e2c62f37 | 842 | TCHAR wpath[GNAT_MAX_PATH_LEN]; |
843 | TCHAR wmode[10]; | |
844 | ||
e2c62f37 | 845 | S2WS (wmode, mode, 10); |
1e622f0e | 846 | |
f60cc57d | 847 | if (encoding == Encoding_Unspecified) |
848 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); | |
849 | else if (encoding == Encoding_UTF8) | |
1e622f0e | 850 | S2WSU (wpath, path, GNAT_MAX_PATH_LEN); |
851 | else | |
852 | S2WS (wpath, path, GNAT_MAX_PATH_LEN); | |
853 | ||
e2c62f37 | 854 | return _tfreopen (wpath, wmode, stream); |
855 | #else | |
856 | return freopen (path, mode, stream); | |
857 | #endif | |
858 | } | |
859 | ||
1fac938e | 860 | int |
9dfe12ae | 861 | __gnat_open_read (char *path, int fmode) |
1fac938e | 862 | { |
863 | int fd; | |
864 | int o_fmode = O_BINARY; | |
865 | ||
866 | if (fmode) | |
867 | o_fmode = O_TEXT; | |
868 | ||
3897a124 | 869 | #if defined (__vxworks) |
1fac938e | 870 | fd = open (path, O_RDONLY | o_fmode, 0444); |
3b18b370 | 871 | #elif defined (__MINGW32__) |
872 | { | |
873 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
874 | ||
f60cc57d | 875 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
3b18b370 | 876 | fd = _topen (wpath, O_RDONLY | o_fmode, 0444); |
877 | } | |
1fac938e | 878 | #else |
781a0dc4 | 879 | fd = GNAT_OPEN (path, O_RDONLY | o_fmode); |
1fac938e | 880 | #endif |
f15731c4 | 881 | |
1fac938e | 882 | return fd < 0 ? -1 : fd; |
883 | } | |
884 | ||
30592778 | 885 | #if defined (__MINGW32__) |
1fac938e | 886 | #define PERM (S_IREAD | S_IWRITE) |
887 | #else | |
888 | #define PERM (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) | |
889 | #endif | |
890 | ||
891 | int | |
9dfe12ae | 892 | __gnat_open_rw (char *path, int fmode) |
1fac938e | 893 | { |
894 | int fd; | |
895 | int o_fmode = O_BINARY; | |
896 | ||
897 | if (fmode) | |
898 | o_fmode = O_TEXT; | |
899 | ||
3897a124 | 900 | #if defined (__MINGW32__) |
3b18b370 | 901 | { |
902 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
903 | ||
f60cc57d | 904 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
3b18b370 | 905 | fd = _topen (wpath, O_RDWR | o_fmode, PERM); |
906 | } | |
1fac938e | 907 | #else |
781a0dc4 | 908 | fd = GNAT_OPEN (path, O_RDWR | o_fmode, PERM); |
1fac938e | 909 | #endif |
910 | ||
911 | return fd < 0 ? -1 : fd; | |
912 | } | |
913 | ||
914 | int | |
9dfe12ae | 915 | __gnat_open_create (char *path, int fmode) |
1fac938e | 916 | { |
917 | int fd; | |
918 | int o_fmode = O_BINARY; | |
919 | ||
920 | if (fmode) | |
921 | o_fmode = O_TEXT; | |
922 | ||
3897a124 | 923 | #if defined (__MINGW32__) |
3b18b370 | 924 | { |
925 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
926 | ||
f60cc57d | 927 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
3b18b370 | 928 | fd = _topen (wpath, O_WRONLY | O_CREAT | O_TRUNC | o_fmode, PERM); |
929 | } | |
1fac938e | 930 | #else |
781a0dc4 | 931 | fd = GNAT_OPEN (path, O_WRONLY | O_CREAT | O_TRUNC | o_fmode, PERM); |
1fac938e | 932 | #endif |
933 | ||
934 | return fd < 0 ? -1 : fd; | |
28ed91d4 | 935 | } |
936 | ||
937 | int | |
938 | __gnat_create_output_file (char *path) | |
939 | { | |
940 | int fd; | |
3897a124 | 941 | #if defined (__MINGW32__) |
3b18b370 | 942 | { |
943 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
944 | ||
f60cc57d | 945 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
3b18b370 | 946 | fd = _topen (wpath, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT, PERM); |
947 | } | |
28ed91d4 | 948 | #else |
781a0dc4 | 949 | fd = GNAT_OPEN (path, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT, PERM); |
28ed91d4 | 950 | #endif |
951 | ||
952 | return fd < 0 ? -1 : fd; | |
1fac938e | 953 | } |
954 | ||
df40eeb0 | 955 | int |
956 | __gnat_create_output_file_new (char *path) | |
957 | { | |
958 | int fd; | |
3897a124 | 959 | #if defined (__MINGW32__) |
df40eeb0 | 960 | { |
961 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
962 | ||
963 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); | |
964 | fd = _topen (wpath, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT | O_EXCL, PERM); | |
965 | } | |
966 | #else | |
781a0dc4 | 967 | fd = GNAT_OPEN (path, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT | O_EXCL, PERM); |
df40eeb0 | 968 | #endif |
969 | ||
970 | return fd < 0 ? -1 : fd; | |
971 | } | |
972 | ||
1fac938e | 973 | int |
9dfe12ae | 974 | __gnat_open_append (char *path, int fmode) |
1fac938e | 975 | { |
976 | int fd; | |
977 | int o_fmode = O_BINARY; | |
978 | ||
979 | if (fmode) | |
980 | o_fmode = O_TEXT; | |
981 | ||
3897a124 | 982 | #if defined (__MINGW32__) |
3b18b370 | 983 | { |
984 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
985 | ||
f60cc57d | 986 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
3b18b370 | 987 | fd = _topen (wpath, O_WRONLY | O_CREAT | O_APPEND | o_fmode, PERM); |
988 | } | |
1fac938e | 989 | #else |
781a0dc4 | 990 | fd = GNAT_OPEN (path, O_WRONLY | O_CREAT | O_APPEND | o_fmode, PERM); |
1fac938e | 991 | #endif |
992 | ||
993 | return fd < 0 ? -1 : fd; | |
994 | } | |
995 | ||
f15731c4 | 996 | /* Open a new file. Return error (-1) if the file already exists. */ |
1fac938e | 997 | |
998 | int | |
9dfe12ae | 999 | __gnat_open_new (char *path, int fmode) |
1fac938e | 1000 | { |
1001 | int fd; | |
1002 | int o_fmode = O_BINARY; | |
1003 | ||
1004 | if (fmode) | |
1005 | o_fmode = O_TEXT; | |
1006 | ||
3897a124 | 1007 | #if defined (__MINGW32__) |
3b18b370 | 1008 | { |
1009 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
1010 | ||
f60cc57d | 1011 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); |
3b18b370 | 1012 | fd = _topen (wpath, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM); |
1013 | } | |
1fac938e | 1014 | #else |
781a0dc4 | 1015 | fd = GNAT_OPEN (path, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM); |
1fac938e | 1016 | #endif |
1017 | ||
1018 | return fd < 0 ? -1 : fd; | |
1019 | } | |
1020 | ||
3897a124 | 1021 | /* Open a new temp file. Return error (-1) if the file already exists. */ |
1fac938e | 1022 | |
1023 | int | |
9dfe12ae | 1024 | __gnat_open_new_temp (char *path, int fmode) |
1fac938e | 1025 | { |
1026 | int fd; | |
1027 | int o_fmode = O_BINARY; | |
1028 | ||
1029 | strcpy (path, "GNAT-XXXXXX"); | |
1030 | ||
e0324ff5 | 1031 | #if (defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) \ |
f2837ceb | 1032 | || defined (__linux__) || defined (__GLIBC__) || defined (__ANDROID__) \ |
d07035da | 1033 | || defined (__DragonFly__) || defined (__QNX__)) && !defined (__vxworks) |
1fac938e | 1034 | return mkstemp (path); |
159eb63c | 1035 | #elif defined (__Lynx__) |
1036 | mktemp (path); | |
1fac938e | 1037 | #else |
1038 | if (mktemp (path) == NULL) | |
1039 | return -1; | |
1040 | #endif | |
1041 | ||
1042 | if (fmode) | |
1043 | o_fmode = O_TEXT; | |
1044 | ||
781a0dc4 | 1045 | fd = GNAT_OPEN (path, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM); |
1fac938e | 1046 | return fd < 0 ? -1 : fd; |
1047 | } | |
1048 | ||
cdeff474 | 1049 | int |
1050 | __gnat_open (char *path, int fmode) | |
1051 | { | |
1052 | int fd; | |
1053 | ||
3897a124 | 1054 | #if defined (__MINGW32__) |
cdeff474 | 1055 | { |
1056 | TCHAR wpath[GNAT_MAX_PATH_LEN]; | |
1057 | ||
1058 | S2WSC (wpath, path, GNAT_MAX_PATH_LEN); | |
1059 | fd = _topen (wpath, fmode, PERM); | |
1060 | } | |
1061 | #else | |
1062 | fd = GNAT_OPEN (path, fmode, PERM); | |
1063 | #endif | |
1064 | ||
1065 | return fd < 0 ? -1 : fd; | |
1066 | } | |
1067 | ||
5f93bcbf | 1068 | /**************************************************************** |
1069 | ** Perform a call to GNAT_STAT or GNAT_FSTAT, and extract as much information | |
1070 | ** as possible from it, storing the result in a cache for later reuse | |
1071 | ****************************************************************/ | |
1fac938e | 1072 | |
5f93bcbf | 1073 | void |
1074 | __gnat_stat_to_attr (int fd, char* name, struct file_attributes* attr) | |
1fac938e | 1075 | { |
8cb516d7 | 1076 | GNAT_STRUCT_STAT statbuf; |
28a4283c | 1077 | int ret, error; |
1fac938e | 1078 | |
28a4283c | 1079 | if (fd != -1) { |
1080 | /* GNAT_FSTAT returns -1 and sets errno for failure */ | |
5f93bcbf | 1081 | ret = GNAT_FSTAT (fd, &statbuf); |
28a4283c | 1082 | error = ret ? errno : 0; |
1083 | ||
1084 | } else { | |
1085 | /* __gnat_stat returns errno value directly */ | |
1086 | error = __gnat_stat (name, &statbuf); | |
1087 | ret = error ? -1 : 0; | |
1088 | } | |
1089 | ||
1090 | /* | |
1091 | * A missing file is reported as an attr structure with error == 0 and | |
1092 | * exists == 0. | |
1093 | */ | |
1094 | ||
1095 | if (error == 0 || error == ENOENT) | |
1096 | attr->error = 0; | |
5f93bcbf | 1097 | else |
28a4283c | 1098 | attr->error = error; |
5f93bcbf | 1099 | |
1100 | attr->regular = (!ret && S_ISREG (statbuf.st_mode)); | |
1101 | attr->directory = (!ret && S_ISDIR (statbuf.st_mode)); | |
1fac938e | 1102 | |
5f93bcbf | 1103 | if (!attr->regular) |
1104 | attr->file_length = 0; | |
1105 | else | |
1106 | /* st_size may be 32 bits, or 64 bits which is converted to long. We | |
1107 | don't return a useful value for files larger than 2 gigabytes in | |
1108 | either case. */ | |
1109 | attr->file_length = statbuf.st_size; /* all systems */ | |
1110 | ||
5f93bcbf | 1111 | attr->exists = !ret; |
5f93bcbf | 1112 | |
b85b7cb2 | 1113 | #if !defined (_WIN32) |
5f93bcbf | 1114 | /* on Windows requires extra system call, see __gnat_is_readable_file_attr */ |
1115 | attr->readable = (!ret && (statbuf.st_mode & S_IRUSR)); | |
1116 | attr->writable = (!ret && (statbuf.st_mode & S_IWUSR)); | |
1117 | attr->executable = (!ret && (statbuf.st_mode & S_IXUSR)); | |
1118 | #endif | |
1119 | ||
5f93bcbf | 1120 | if (ret != 0) { |
1121 | attr->timestamp = (OS_Time)-1; | |
1122 | } else { | |
5f93bcbf | 1123 | attr->timestamp = (OS_Time)statbuf.st_mtime; |
5f93bcbf | 1124 | } |
1fac938e | 1125 | } |
1126 | ||
5f93bcbf | 1127 | /**************************************************************** |
1128 | ** Return the number of bytes in the specified file | |
1129 | ****************************************************************/ | |
d24d7e81 | 1130 | |
8e28536f | 1131 | __int64 |
5f93bcbf | 1132 | __gnat_file_length_attr (int fd, char* name, struct file_attributes* attr) |
d24d7e81 | 1133 | { |
5f93bcbf | 1134 | if (attr->file_length == -1) { |
1135 | __gnat_stat_to_attr (fd, name, attr); | |
1136 | } | |
d24d7e81 | 1137 | |
5f93bcbf | 1138 | return attr->file_length; |
1139 | } | |
d24d7e81 | 1140 | |
8e28536f | 1141 | __int64 |
5f93bcbf | 1142 | __gnat_file_length (int fd) |
1143 | { | |
1144 | struct file_attributes attr; | |
d2697a05 | 1145 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1146 | return __gnat_file_length_attr (fd, NULL, &attr); |
1147 | } | |
c85cfca7 | 1148 | |
26a98730 | 1149 | long |
1150 | __gnat_file_length_long (int fd) | |
1151 | { | |
1152 | struct file_attributes attr; | |
1153 | __gnat_reset_attributes (&attr); | |
1154 | return (long)__gnat_file_length_attr (fd, NULL, &attr); | |
1155 | } | |
1156 | ||
8e28536f | 1157 | __int64 |
5f93bcbf | 1158 | __gnat_named_file_length (char *name) |
1159 | { | |
1160 | struct file_attributes attr; | |
d2697a05 | 1161 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1162 | return __gnat_file_length_attr (-1, name, &attr); |
d24d7e81 | 1163 | } |
1164 | ||
1fac938e | 1165 | /* Create a temporary filename and put it in string pointed to by |
f15731c4 | 1166 | TMP_FILENAME. */ |
1fac938e | 1167 | |
1168 | void | |
9dfe12ae | 1169 | __gnat_tmp_name (char *tmp_filename) |
1fac938e | 1170 | { |
b85b7cb2 | 1171 | #if defined (__MINGW32__) |
1fac938e | 1172 | { |
1173 | char *pname; | |
8db090bd | 1174 | char prefix[25]; |
1fac938e | 1175 | |
1176 | /* tempnam tries to create a temporary file in directory pointed to by | |
1177 | TMP environment variable, in c:\temp if TMP is not set, and in | |
1178 | directory specified by P_tmpdir in stdio.h if c:\temp does not | |
1179 | exist. The filename will be created with the prefix "gnat-". */ | |
1180 | ||
8db090bd | 1181 | sprintf (prefix, "gnat-%d-", (int)getpid()); |
1182 | pname = (char *) _tempnam ("c:\\temp", prefix); | |
1fac938e | 1183 | |
9dfe12ae | 1184 | /* if pname is NULL, the file was not created properly, the disk is full |
1185 | or there is no more free temporary files */ | |
1186 | ||
1187 | if (pname == NULL) | |
1188 | *tmp_filename = '\0'; | |
1189 | ||
f15731c4 | 1190 | /* If pname start with a back slash and not path information it means that |
1191 | the filename is valid for the current working directory. */ | |
1fac938e | 1192 | |
9dfe12ae | 1193 | else if (pname[0] == '\\') |
1fac938e | 1194 | { |
1195 | strcpy (tmp_filename, ".\\"); | |
1196 | strcat (tmp_filename, pname+1); | |
1197 | } | |
1198 | else | |
1199 | strcpy (tmp_filename, pname); | |
1200 | ||
1201 | free (pname); | |
1202 | } | |
f15731c4 | 1203 | |
3d230452 | 1204 | #elif defined (__linux__) || defined (__FreeBSD__) || defined (__NetBSD__) \ |
87e3f630 | 1205 | || defined (__OpenBSD__) || defined (__GLIBC__) || defined (__ANDROID__) \ |
d07035da | 1206 | || defined (__DragonFly__) || defined (__QNX__) |
9dfe12ae | 1207 | #define MAX_SAFE_PATH 1000 |
1fac938e | 1208 | char *tmpdir = getenv ("TMPDIR"); |
1209 | ||
9dfe12ae | 1210 | /* If tmpdir is longer than MAX_SAFE_PATH, revert to default value to avoid |
1211 | a buffer overflow. */ | |
1212 | if (tmpdir == NULL || strlen (tmpdir) > MAX_SAFE_PATH) | |
5bfeb3fa | 1213 | #ifdef __ANDROID__ |
1214 | strcpy (tmp_filename, "/cache/gnat-XXXXXX"); | |
1215 | #else | |
1fac938e | 1216 | strcpy (tmp_filename, "/tmp/gnat-XXXXXX"); |
5bfeb3fa | 1217 | #endif |
1fac938e | 1218 | else |
9dfe12ae | 1219 | sprintf (tmp_filename, "%s/gnat-XXXXXX", tmpdir); |
1fac938e | 1220 | |
1221 | close (mkstemp(tmp_filename)); | |
c96806b2 | 1222 | #elif defined (__vxworks) && !defined (VTHREADS) |
1223 | int index; | |
1224 | char *pos; | |
1225 | char *savepos; | |
f5688ed4 | 1226 | static ushort_t seed = 0; /* used to generate unique name */ |
1227 | ||
c96806b2 | 1228 | /* Generate a unique name. */ |
f5688ed4 | 1229 | strcpy (tmp_filename, "tmp"); |
1230 | ||
f5688ed4 | 1231 | index = 5; |
c96806b2 | 1232 | savepos = pos = tmp_filename + strlen (tmp_filename) + index; |
f5688ed4 | 1233 | *pos = '\0'; |
1234 | ||
c96806b2 | 1235 | while (1) |
1236 | { | |
1237 | FILE *f; | |
1238 | ushort_t t; | |
1239 | ||
1240 | /* Fill up the name buffer from the last position. */ | |
1241 | seed++; | |
c9281ef8 | 1242 | for (t = seed; --index >= 0; t >>= 3) |
c96806b2 | 1243 | *--pos = '0' + (t & 07); |
1244 | ||
1245 | /* Check to see if its unique, if not bump the seed and try again. */ | |
1246 | f = fopen (tmp_filename, "r"); | |
1247 | if (f == NULL) | |
1248 | break; | |
1249 | fclose (f); | |
1250 | pos = savepos; | |
1251 | index = 5; | |
1252 | } | |
1fac938e | 1253 | #else |
1254 | tmpnam (tmp_filename); | |
1255 | #endif | |
1256 | } | |
1257 | ||
3b18b370 | 1258 | /* Open directory and returns a DIR pointer. */ |
1259 | ||
1260 | DIR* __gnat_opendir (char *name) | |
1261 | { | |
b85b7cb2 | 1262 | #if defined (__MINGW32__) |
3b18b370 | 1263 | TCHAR wname[GNAT_MAX_PATH_LEN]; |
1264 | ||
f60cc57d | 1265 | S2WSC (wname, name, GNAT_MAX_PATH_LEN); |
3b18b370 | 1266 | return (DIR*)_topendir (wname); |
1267 | ||
1268 | #else | |
1269 | return opendir (name); | |
1270 | #endif | |
1271 | } | |
1272 | ||
1fac938e | 1273 | /* Read the next entry in a directory. The returned string points somewhere |
1274 | in the buffer. */ | |
1275 | ||
3d230452 | 1276 | #if defined (__sun__) |
dba38d2f | 1277 | /* For Solaris, be sure to use the 64-bit version, otherwise NFS reads may |
1278 | fail with EOVERFLOW if the server uses 64-bit cookies. */ | |
1279 | #define dirent dirent64 | |
1280 | #define readdir readdir64 | |
1281 | #endif | |
1282 | ||
1fac938e | 1283 | char * |
3b18b370 | 1284 | __gnat_readdir (DIR *dirp, char *buffer, int *len) |
1fac938e | 1285 | { |
b85b7cb2 | 1286 | #if defined (__MINGW32__) |
3b18b370 | 1287 | struct _tdirent *dirent = _treaddir ((_TDIR*)dirp); |
1288 | ||
1289 | if (dirent != NULL) | |
1290 | { | |
f60cc57d | 1291 | WS2SC (buffer, dirent->d_name, GNAT_MAX_PATH_LEN); |
3b18b370 | 1292 | *len = strlen (buffer); |
1293 | ||
1294 | return buffer; | |
1295 | } | |
1296 | else | |
1297 | return NULL; | |
1298 | ||
1299 | #elif defined (HAVE_READDIR_R) | |
1fac938e | 1300 | /* If possible, try to use the thread-safe version. */ |
1fac938e | 1301 | if (readdir_r (dirp, buffer) != NULL) |
1aa4b9ce | 1302 | { |
1303 | *len = strlen (((struct dirent*) buffer)->d_name); | |
1304 | return ((struct dirent*) buffer)->d_name; | |
1305 | } | |
1fac938e | 1306 | else |
1307 | return NULL; | |
1308 | ||
1309 | #else | |
5b941af6 | 1310 | struct dirent *dirent = (struct dirent *) readdir (dirp); |
1fac938e | 1311 | |
1312 | if (dirent != NULL) | |
1313 | { | |
1314 | strcpy (buffer, dirent->d_name); | |
3b18b370 | 1315 | *len = strlen (buffer); |
1fac938e | 1316 | return buffer; |
1317 | } | |
1318 | else | |
1319 | return NULL; | |
1320 | ||
1321 | #endif | |
1322 | } | |
1323 | ||
3b18b370 | 1324 | /* Close a directory entry. */ |
1325 | ||
1326 | int __gnat_closedir (DIR *dirp) | |
1327 | { | |
b85b7cb2 | 1328 | #if defined (__MINGW32__) |
3b18b370 | 1329 | return _tclosedir ((_TDIR*)dirp); |
1330 | ||
1331 | #else | |
1332 | return closedir (dirp); | |
1333 | #endif | |
1334 | } | |
1335 | ||
1fac938e | 1336 | /* Returns 1 if readdir is thread safe, 0 otherwise. */ |
1337 | ||
1338 | int | |
6f2c2693 | 1339 | __gnat_readdir_is_thread_safe (void) |
1fac938e | 1340 | { |
1341 | #ifdef HAVE_READDIR_R | |
1342 | return 1; | |
1343 | #else | |
1344 | return 0; | |
1345 | #endif | |
1346 | } | |
1347 | ||
b85b7cb2 | 1348 | #if defined (_WIN32) |
982e2721 | 1349 | /* Number of seconds between <Jan 1st 1601> and <Jan 1st 1970>. */ |
1350 | static const unsigned long long w32_epoch_offset = 11644473600ULL; | |
1fac938e | 1351 | |
1352 | /* Returns the file modification timestamp using Win32 routines which are | |
1353 | immune against daylight saving time change. It is in fact not possible to | |
1354 | use fstat for this purpose as the DST modify the st_mtime field of the | |
1355 | stat structure. */ | |
1356 | ||
1357 | static time_t | |
9dfe12ae | 1358 | win32_filetime (HANDLE h) |
1fac938e | 1359 | { |
982e2721 | 1360 | union |
1361 | { | |
1362 | FILETIME ft_time; | |
1363 | unsigned long long ull_time; | |
1364 | } t_write; | |
1fac938e | 1365 | |
1366 | /* GetFileTime returns FILETIME data which are the number of 100 nanosecs | |
1367 | since <Jan 1st 1601>. This function must return the number of seconds | |
1368 | since <Jan 1st 1970>. */ | |
1369 | ||
982e2721 | 1370 | if (GetFileTime (h, NULL, NULL, &t_write.ft_time)) |
3b18b370 | 1371 | return (time_t) (t_write.ull_time / 10000000ULL - w32_epoch_offset); |
982e2721 | 1372 | return (time_t) 0; |
1fac938e | 1373 | } |
d7c2851f | 1374 | |
1375 | /* As above but starting from a FILETIME. */ | |
7edd5071 | 1376 | static void |
c8a2d809 | 1377 | f2t (const FILETIME *ft, __time64_t *t) |
d7c2851f | 1378 | { |
1379 | union | |
1380 | { | |
1381 | FILETIME ft_time; | |
1382 | unsigned long long ull_time; | |
1383 | } t_write; | |
1384 | ||
1385 | t_write.ft_time = *ft; | |
c8a2d809 | 1386 | *t = (__time64_t) (t_write.ull_time / 10000000ULL - w32_epoch_offset); |
d7c2851f | 1387 | } |
1fac938e | 1388 | #endif |
1389 | ||
1390 | /* Return a GNAT time stamp given a file name. */ | |
1391 | ||
1bbc9831 | 1392 | OS_Time |
5f93bcbf | 1393 | __gnat_file_time_name_attr (char* name, struct file_attributes* attr) |
1fac938e | 1394 | { |
5f93bcbf | 1395 | if (attr->timestamp == (OS_Time)-2) { |
b85b7cb2 | 1396 | #if defined (_WIN32) |
7edd5071 | 1397 | BOOL res; |
1398 | WIN32_FILE_ATTRIBUTE_DATA fad; | |
c8a2d809 | 1399 | __time64_t ret = -1; |
5f93bcbf | 1400 | TCHAR wname[GNAT_MAX_PATH_LEN]; |
1401 | S2WSC (wname, name, GNAT_MAX_PATH_LEN); | |
3b18b370 | 1402 | |
928c11f3 | 1403 | if ((res = GetFileAttributesEx (wname, GetFileExInfoStandard, &fad))) |
7edd5071 | 1404 | f2t (&fad.ftLastWriteTime, &ret); |
5f93bcbf | 1405 | attr->timestamp = (OS_Time) ret; |
1fac938e | 1406 | #else |
5f93bcbf | 1407 | __gnat_stat_to_attr (-1, name, attr); |
1fac938e | 1408 | #endif |
1bbc9831 | 1409 | } |
5f93bcbf | 1410 | return attr->timestamp; |
1411 | } | |
1412 | ||
1413 | OS_Time | |
1414 | __gnat_file_time_name (char *name) | |
1415 | { | |
1416 | struct file_attributes attr; | |
d2697a05 | 1417 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1418 | return __gnat_file_time_name_attr (name, &attr); |
1fac938e | 1419 | } |
1420 | ||
1421 | /* Return a GNAT time stamp given a file descriptor. */ | |
1422 | ||
1bbc9831 | 1423 | OS_Time |
5f93bcbf | 1424 | __gnat_file_time_fd_attr (int fd, struct file_attributes* attr) |
1fac938e | 1425 | { |
5f93bcbf | 1426 | if (attr->timestamp == (OS_Time)-2) { |
b85b7cb2 | 1427 | #if defined (_WIN32) |
5f93bcbf | 1428 | HANDLE h = (HANDLE) _get_osfhandle (fd); |
1429 | time_t ret = win32_filetime (h); | |
1430 | attr->timestamp = (OS_Time) ret; | |
1fac938e | 1431 | |
1432 | #else | |
5f93bcbf | 1433 | __gnat_stat_to_attr (fd, NULL, attr); |
1fac938e | 1434 | #endif |
5f93bcbf | 1435 | } |
1436 | ||
1437 | return attr->timestamp; | |
1438 | } | |
1439 | ||
1440 | OS_Time | |
1441 | __gnat_file_time_fd (int fd) | |
1442 | { | |
1443 | struct file_attributes attr; | |
d2697a05 | 1444 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1445 | return __gnat_file_time_fd_attr (fd, &attr); |
1fac938e | 1446 | } |
1447 | ||
f15731c4 | 1448 | /* Set the file time stamp. */ |
d8dd2062 | 1449 | |
1450 | void | |
9dfe12ae | 1451 | __gnat_set_file_time_name (char *name, time_t time_stamp) |
d8dd2062 | 1452 | { |
30592778 | 1453 | #if defined (__vxworks) |
71a3e619 | 1454 | |
f15731c4 | 1455 | /* Code to implement __gnat_set_file_time_name for these systems. */ |
71a3e619 | 1456 | |
b85b7cb2 | 1457 | #elif defined (_WIN32) |
982e2721 | 1458 | union |
1459 | { | |
1460 | FILETIME ft_time; | |
1461 | unsigned long long ull_time; | |
1462 | } t_write; | |
3b18b370 | 1463 | TCHAR wname[GNAT_MAX_PATH_LEN]; |
fabb7dc5 | 1464 | |
f60cc57d | 1465 | S2WSC (wname, name, GNAT_MAX_PATH_LEN); |
3b18b370 | 1466 | |
1467 | HANDLE h = CreateFile | |
1468 | (wname, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, | |
1469 | OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, | |
1470 | NULL); | |
982e2721 | 1471 | if (h == INVALID_HANDLE_VALUE) |
1472 | return; | |
1473 | /* Add number of seconds between <Jan 1st 1601> and <Jan 1st 1970> */ | |
1474 | t_write.ull_time = ((unsigned long long)time_stamp + w32_epoch_offset); | |
1475 | /* Convert to 100 nanosecond units */ | |
1476 | t_write.ull_time *= 10000000ULL; | |
1477 | ||
1478 | SetFileTime(h, NULL, NULL, &t_write.ft_time); | |
1479 | CloseHandle (h); | |
1480 | return; | |
1481 | ||
d8dd2062 | 1482 | #else |
1483 | struct utimbuf utimbuf; | |
1484 | time_t t; | |
1485 | ||
f15731c4 | 1486 | /* Set modification time to requested time. */ |
d8dd2062 | 1487 | utimbuf.modtime = time_stamp; |
1488 | ||
f15731c4 | 1489 | /* Set access time to now in local time. */ |
c3aac4d8 | 1490 | t = time (NULL); |
d8dd2062 | 1491 | utimbuf.actime = mktime (localtime (&t)); |
1492 | ||
1493 | utime (name, &utimbuf); | |
1494 | #endif | |
1495 | } | |
1496 | ||
1fac938e | 1497 | /* Get the list of installed standard libraries from the |
1498 | HKEY_LOCAL_MACHINE\SOFTWARE\Ada Core Technologies\GNAT\Standard Libraries | |
1499 | key. */ | |
1500 | ||
1501 | char * | |
6f2c2693 | 1502 | __gnat_get_libraries_from_registry (void) |
1fac938e | 1503 | { |
69d33a1d | 1504 | char *result = (char *) xmalloc (1); |
1505 | ||
1506 | result[0] = '\0'; | |
1fac938e | 1507 | |
b85b7cb2 | 1508 | #if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) |
1fac938e | 1509 | |
1510 | HKEY reg_key; | |
1511 | DWORD name_size, value_size; | |
1512 | char name[256]; | |
1513 | char value[256]; | |
1514 | DWORD type; | |
1515 | DWORD index; | |
1516 | LONG res; | |
1517 | ||
1518 | /* First open the key. */ | |
1519 | res = RegOpenKeyExA (HKEY_LOCAL_MACHINE, "SOFTWARE", 0, KEY_READ, ®_key); | |
1520 | ||
1521 | if (res == ERROR_SUCCESS) | |
1522 | res = RegOpenKeyExA (reg_key, "Ada Core Technologies", 0, | |
1523 | KEY_READ, ®_key); | |
1524 | ||
1525 | if (res == ERROR_SUCCESS) | |
1526 | res = RegOpenKeyExA (reg_key, "GNAT", 0, KEY_READ, ®_key); | |
1527 | ||
1528 | if (res == ERROR_SUCCESS) | |
1529 | res = RegOpenKeyExA (reg_key, "Standard Libraries", 0, KEY_READ, ®_key); | |
1530 | ||
1531 | /* If the key exists, read out all the values in it and concatenate them | |
1532 | into a path. */ | |
1533 | for (index = 0; res == ERROR_SUCCESS; index++) | |
1534 | { | |
1535 | value_size = name_size = 256; | |
2726b813 | 1536 | res = RegEnumValueA (reg_key, index, name, &name_size, 0, |
e2c62f37 | 1537 | &type, (LPBYTE)value, &value_size); |
1fac938e | 1538 | |
1539 | if (res == ERROR_SUCCESS && type == REG_SZ) | |
1540 | { | |
1541 | char *old_result = result; | |
1542 | ||
1543 | result = (char *) xmalloc (strlen (old_result) + value_size + 2); | |
1544 | strcpy (result, old_result); | |
1545 | strcat (result, value); | |
1546 | strcat (result, ";"); | |
69d33a1d | 1547 | free (old_result); |
1fac938e | 1548 | } |
1549 | } | |
1550 | ||
1551 | /* Remove the trailing ";". */ | |
1552 | if (result[0] != 0) | |
1553 | result[strlen (result) - 1] = 0; | |
2b4d7555 | 1554 | |
69d33a1d | 1555 | #endif |
1fac938e | 1556 | return result; |
1557 | } | |
1558 | ||
28a4283c | 1559 | /* Query information for the given file NAME and return it in STATBUF. |
1560 | * Returns 0 for success, or errno value for failure. | |
1561 | */ | |
1fac938e | 1562 | int |
8cb516d7 | 1563 | __gnat_stat (char *name, GNAT_STRUCT_STAT *statbuf) |
1fac938e | 1564 | { |
3b18b370 | 1565 | #ifdef __MINGW32__ |
d7c2851f | 1566 | WIN32_FILE_ATTRIBUTE_DATA fad; |
3b18b370 | 1567 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
d7c2851f | 1568 | int name_len; |
1569 | BOOL res; | |
7d20685d | 1570 | DWORD error; |
3b18b370 | 1571 | |
f60cc57d | 1572 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
3b18b370 | 1573 | name_len = _tcslen (wname); |
e7b2d6bc | 1574 | |
1575 | if (name_len > GNAT_MAX_PATH_LEN) | |
28a4283c | 1576 | return EINVAL; |
1fac938e | 1577 | |
d7c2851f | 1578 | ZeroMemory (statbuf, sizeof(GNAT_STRUCT_STAT)); |
1579 | ||
1580 | res = GetFileAttributesEx (wname, GetFileExInfoStandard, &fad); | |
1581 | ||
7d20685d | 1582 | if (res == FALSE) { |
1583 | error = GetLastError(); | |
1584 | ||
1585 | /* Check file existence using GetFileAttributes() which does not fail on | |
1586 | special Windows files like con:, aux:, nul: etc... */ | |
1587 | ||
1588 | if (GetFileAttributes(wname) != INVALID_FILE_ATTRIBUTES) { | |
1589 | /* Just pretend that it is a regular and readable file */ | |
1590 | statbuf->st_mode = S_IFREG | S_IREAD | S_IWRITE; | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | switch (error) { | |
7edd5071 | 1595 | case ERROR_ACCESS_DENIED: |
1596 | case ERROR_SHARING_VIOLATION: | |
1597 | case ERROR_LOCK_VIOLATION: | |
1598 | case ERROR_SHARING_BUFFER_EXCEEDED: | |
1599 | return EACCES; | |
1600 | case ERROR_BUFFER_OVERFLOW: | |
1601 | return ENAMETOOLONG; | |
1602 | case ERROR_NOT_ENOUGH_MEMORY: | |
1603 | return ENOMEM; | |
1604 | default: | |
1605 | return ENOENT; | |
1fac938e | 1606 | } |
7d20685d | 1607 | } |
1fac938e | 1608 | |
d7c2851f | 1609 | f2t (&fad.ftCreationTime, &statbuf->st_ctime); |
1610 | f2t (&fad.ftLastWriteTime, &statbuf->st_mtime); | |
1611 | f2t (&fad.ftLastAccessTime, &statbuf->st_atime); | |
8234fccd | 1612 | |
b6f6bb02 | 1613 | statbuf->st_size = |
1614 | (__int64)fad.nFileSizeLow | (__int64)fad.nFileSizeHigh << 32; | |
8234fccd | 1615 | |
d7c2851f | 1616 | /* We do not have the S_IEXEC attribute, but this is not used on GNAT. */ |
1617 | statbuf->st_mode = S_IREAD; | |
1fac938e | 1618 | |
d7c2851f | 1619 | if (fad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
1620 | statbuf->st_mode |= S_IFDIR; | |
1621 | else | |
1622 | statbuf->st_mode |= S_IFREG; | |
1623 | ||
1624 | if (!(fad.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) | |
1625 | statbuf->st_mode |= S_IWRITE; | |
1626 | ||
1627 | return 0; | |
1fac938e | 1628 | |
1629 | #else | |
28a4283c | 1630 | return GNAT_STAT (name, statbuf) == 0 ? 0 : errno; |
1fac938e | 1631 | #endif |
1632 | } | |
1633 | ||
5f93bcbf | 1634 | /************************************************************************* |
1635 | ** Check whether a file exists | |
1636 | *************************************************************************/ | |
1637 | ||
1fac938e | 1638 | int |
5f93bcbf | 1639 | __gnat_file_exists_attr (char* name, struct file_attributes* attr) |
1fac938e | 1640 | { |
24d7b9d6 | 1641 | if (attr->exists == ATTR_UNSET) |
1642 | __gnat_stat_to_attr (-1, name, attr); | |
5f93bcbf | 1643 | |
1644 | return attr->exists; | |
1fac938e | 1645 | } |
1646 | ||
5f93bcbf | 1647 | int |
1648 | __gnat_file_exists (char *name) | |
1649 | { | |
1650 | struct file_attributes attr; | |
d2697a05 | 1651 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1652 | return __gnat_file_exists_attr (name, &attr); |
1653 | } | |
1654 | ||
1655 | /********************************************************************** | |
1656 | ** Whether name is an absolute path | |
1657 | **********************************************************************/ | |
1658 | ||
9dfe12ae | 1659 | int |
4a3f445c | 1660 | __gnat_is_absolute_path (char *name, int length) |
1fac938e | 1661 | { |
8620a406 | 1662 | #ifdef __vxworks |
1663 | /* On VxWorks systems, an absolute path can be represented (depending on | |
1664 | the host platform) as either /dir/file, or device:/dir/file, or | |
1665 | device:drive_letter:/dir/file. */ | |
1666 | ||
1667 | int index; | |
1668 | ||
1669 | if (name[0] == '/') | |
1670 | return 1; | |
1671 | ||
1672 | for (index = 0; index < length; index++) | |
1673 | { | |
1674 | if (name[index] == ':' && | |
1675 | ((name[index + 1] == '/') || | |
1676 | (isalpha (name[index + 1]) && index + 2 <= length && | |
1677 | name[index + 2] == '/'))) | |
1678 | return 1; | |
1679 | ||
1680 | else if (name[index] == '/') | |
1681 | return 0; | |
1682 | } | |
1683 | return 0; | |
1684 | #else | |
4a3f445c | 1685 | return (length != 0) && |
1686 | (*name == '/' || *name == DIR_SEPARATOR | |
f28fa6a2 | 1687 | #if defined (WINNT) || defined(__DJGPP__) |
a4f295eb | 1688 | || (length > 1 && ISALPHA (name[0]) && name[1] == ':') |
1fac938e | 1689 | #endif |
69d33a1d | 1690 | ); |
8620a406 | 1691 | #endif |
1fac938e | 1692 | } |
1693 | ||
5f93bcbf | 1694 | int |
1695 | __gnat_is_regular_file_attr (char* name, struct file_attributes* attr) | |
1696 | { | |
24d7b9d6 | 1697 | if (attr->regular == ATTR_UNSET) |
1698 | __gnat_stat_to_attr (-1, name, attr); | |
5f93bcbf | 1699 | |
1700 | return attr->regular; | |
1701 | } | |
1702 | ||
1fac938e | 1703 | int |
9dfe12ae | 1704 | __gnat_is_regular_file (char *name) |
1fac938e | 1705 | { |
5f93bcbf | 1706 | struct file_attributes attr; |
24d7b9d6 | 1707 | |
d2697a05 | 1708 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1709 | return __gnat_is_regular_file_attr (name, &attr); |
1710 | } | |
1711 | ||
12c194d1 | 1712 | int |
1713 | __gnat_is_regular_file_fd (int fd) | |
1714 | { | |
1715 | int ret; | |
1716 | GNAT_STRUCT_STAT statbuf; | |
1717 | ||
1718 | ret = GNAT_FSTAT (fd, &statbuf); | |
1719 | return (!ret && S_ISREG (statbuf.st_mode)); | |
1720 | } | |
1721 | ||
5f93bcbf | 1722 | int |
1723 | __gnat_is_directory_attr (char* name, struct file_attributes* attr) | |
1724 | { | |
24d7b9d6 | 1725 | if (attr->directory == ATTR_UNSET) |
1726 | __gnat_stat_to_attr (-1, name, attr); | |
1fac938e | 1727 | |
5f93bcbf | 1728 | return attr->directory; |
1fac938e | 1729 | } |
1730 | ||
1731 | int | |
9dfe12ae | 1732 | __gnat_is_directory (char *name) |
1fac938e | 1733 | { |
5f93bcbf | 1734 | struct file_attributes attr; |
24d7b9d6 | 1735 | |
d2697a05 | 1736 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1737 | return __gnat_is_directory_attr (name, &attr); |
1fac938e | 1738 | } |
1739 | ||
b85b7cb2 | 1740 | #if defined (_WIN32) |
57ecb969 | 1741 | |
1742 | /* Returns the same constant as GetDriveType but takes a pathname as | |
1743 | argument. */ | |
1744 | ||
1745 | static UINT | |
1746 | GetDriveTypeFromPath (TCHAR *wfullpath) | |
1747 | { | |
1748 | TCHAR wdrv[MAX_PATH]; | |
1749 | TCHAR wpath[MAX_PATH]; | |
1750 | TCHAR wfilename[MAX_PATH]; | |
1751 | TCHAR wext[MAX_PATH]; | |
1752 | ||
1753 | _tsplitpath (wfullpath, wdrv, wpath, wfilename, wext); | |
1754 | ||
1755 | if (_tcslen (wdrv) != 0) | |
1756 | { | |
1757 | /* we have a drive specified. */ | |
1758 | _tcscat (wdrv, _T("\\")); | |
1759 | return GetDriveType (wdrv); | |
1760 | } | |
1761 | else | |
1762 | { | |
1763 | /* No drive specified. */ | |
1764 | ||
1765 | /* Is this a relative path, if so get current drive type. */ | |
1766 | if (wpath[0] != _T('\\') || | |
24d7b9d6 | 1767 | (_tcslen (wpath) > 2 && wpath[0] == _T('\\') |
1768 | && wpath[1] != _T('\\'))) | |
69d33a1d | 1769 | return GetDriveType (NULL); |
57ecb969 | 1770 | |
1771 | UINT result = GetDriveType (wpath); | |
1772 | ||
1773 | /* Cannot guess the drive type, is this \\.\ ? */ | |
1774 | ||
1775 | if (result == DRIVE_NO_ROOT_DIR && | |
69d33a1d | 1776 | _tcslen (wpath) >= 4 && wpath[0] == _T('\\') && wpath[1] == _T('\\') |
1777 | && wpath[2] == _T('.') && wpath[3] == _T('\\')) | |
1778 | { | |
1779 | if (_tcslen (wpath) == 4) | |
1780 | _tcscat (wpath, wfilename); | |
57ecb969 | 1781 | |
69d33a1d | 1782 | LPTSTR p = &wpath[4]; |
1783 | LPTSTR b = _tcschr (p, _T('\\')); | |
57ecb969 | 1784 | |
69d33a1d | 1785 | if (b != NULL) |
24d7b9d6 | 1786 | { |
1787 | /* logical drive \\.\c\dir\file */ | |
69d33a1d | 1788 | *b++ = _T(':'); |
1789 | *b++ = _T('\\'); | |
1790 | *b = _T('\0'); | |
1791 | } | |
1792 | else | |
1793 | _tcscat (p, _T(":\\")); | |
57ecb969 | 1794 | |
69d33a1d | 1795 | return GetDriveType (p); |
1796 | } | |
57ecb969 | 1797 | |
1798 | return result; | |
1799 | } | |
1800 | } | |
1801 | ||
24d7b9d6 | 1802 | /* This MingW section contains code to work with ACL. */ |
7db1ef17 | 1803 | static int |
24d7b9d6 | 1804 | __gnat_check_OWNER_ACL (TCHAR *wname, |
1805 | DWORD CheckAccessDesired, | |
1806 | GENERIC_MAPPING CheckGenericMapping) | |
7db1ef17 | 1807 | { |
7db1ef17 | 1808 | DWORD dwAccessDesired, dwAccessAllowed; |
1809 | PRIVILEGE_SET PrivilegeSet; | |
1810 | DWORD dwPrivSetSize = sizeof (PRIVILEGE_SET); | |
1811 | BOOL fAccessGranted = FALSE; | |
f060ec3a | 1812 | HANDLE hToken = NULL; |
1813 | DWORD nLength = 0; | |
c8a2d809 | 1814 | PSECURITY_DESCRIPTOR pSD = NULL; |
7db1ef17 | 1815 | |
7db1ef17 | 1816 | GetFileSecurity |
1817 | (wname, OWNER_SECURITY_INFORMATION | | |
1818 | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION, | |
1819 | NULL, 0, &nLength); | |
1820 | ||
2b2212d1 | 1821 | if ((pSD = (SECURITY_DESCRIPTOR *) HeapAlloc |
7db1ef17 | 1822 | (GetProcessHeap (), HEAP_ZERO_MEMORY, nLength)) == NULL) |
1823 | return 0; | |
1824 | ||
24d7b9d6 | 1825 | /* Obtain the security descriptor. */ |
7db1ef17 | 1826 | |
1827 | if (!GetFileSecurity | |
1828 | (wname, OWNER_SECURITY_INFORMATION | | |
1829 | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION, | |
1830 | pSD, nLength, &nLength)) | |
f060ec3a | 1831 | goto error; |
7db1ef17 | 1832 | |
1833 | if (!ImpersonateSelf (SecurityImpersonation)) | |
f060ec3a | 1834 | goto error; |
7db1ef17 | 1835 | |
1836 | if (!OpenThreadToken | |
1837 | (GetCurrentThread(), TOKEN_DUPLICATE | TOKEN_QUERY, FALSE, &hToken)) | |
f060ec3a | 1838 | goto error; |
7db1ef17 | 1839 | |
1840 | /* Undoes the effect of ImpersonateSelf. */ | |
1841 | ||
1842 | RevertToSelf (); | |
1843 | ||
1844 | /* We want to test for write permissions. */ | |
1845 | ||
1846 | dwAccessDesired = CheckAccessDesired; | |
1847 | ||
1848 | MapGenericMask (&dwAccessDesired, &CheckGenericMapping); | |
1849 | ||
1850 | if (!AccessCheck | |
1851 | (pSD , /* security descriptor to check */ | |
1852 | hToken, /* impersonation token */ | |
1853 | dwAccessDesired, /* requested access rights */ | |
1854 | &CheckGenericMapping, /* pointer to GENERIC_MAPPING */ | |
1855 | &PrivilegeSet, /* receives privileges used in check */ | |
1856 | &dwPrivSetSize, /* size of PrivilegeSet buffer */ | |
1857 | &dwAccessAllowed, /* receives mask of allowed access rights */ | |
1858 | &fAccessGranted)) | |
f060ec3a | 1859 | goto error; |
7db1ef17 | 1860 | |
f060ec3a | 1861 | CloseHandle (hToken); |
1862 | HeapFree (GetProcessHeap (), 0, pSD); | |
7db1ef17 | 1863 | return fAccessGranted; |
f060ec3a | 1864 | |
1865 | error: | |
1866 | if (hToken) | |
1867 | CloseHandle (hToken); | |
1868 | HeapFree (GetProcessHeap (), 0, pSD); | |
1869 | return 0; | |
7db1ef17 | 1870 | } |
1871 | ||
1872 | static void | |
24d7b9d6 | 1873 | __gnat_set_OWNER_ACL (TCHAR *wname, |
c8a2d809 | 1874 | ACCESS_MODE AccessMode, |
24d7b9d6 | 1875 | DWORD AccessPermissions) |
7db1ef17 | 1876 | { |
4c4697b8 | 1877 | PACL pOldDACL = NULL; |
1878 | PACL pNewDACL = NULL; | |
1879 | PSECURITY_DESCRIPTOR pSD = NULL; | |
7db1ef17 | 1880 | EXPLICIT_ACCESS ea; |
1881 | TCHAR username [100]; | |
1882 | DWORD unsize = 100; | |
1883 | ||
7db1ef17 | 1884 | /* Get current user, he will act as the owner */ |
1885 | ||
1886 | if (!GetUserName (username, &unsize)) | |
1887 | return; | |
1888 | ||
0b3929a6 | 1889 | if (GetNamedSecurityInfo |
1890 | (wname, | |
7db1ef17 | 1891 | SE_FILE_OBJECT, |
1892 | DACL_SECURITY_INFORMATION, | |
1893 | NULL, NULL, &pOldDACL, NULL, &pSD) != ERROR_SUCCESS) | |
1894 | return; | |
1895 | ||
0b3929a6 | 1896 | BuildExplicitAccessWithName |
2b2212d1 | 1897 | (&ea, username, AccessPermissions, (ACCESS_MODE) AccessMode, NO_INHERITANCE); |
7db1ef17 | 1898 | |
1899 | if (AccessMode == SET_ACCESS) | |
1900 | { | |
1901 | /* SET_ACCESS, we want to set an explicte set of permissions, do not | |
69d33a1d | 1902 | merge with current DACL. */ |
7db1ef17 | 1903 | if (SetEntriesInAcl (1, &ea, NULL, &pNewDACL) != ERROR_SUCCESS) |
69d33a1d | 1904 | return; |
7db1ef17 | 1905 | } |
1906 | else | |
1907 | if (SetEntriesInAcl (1, &ea, pOldDACL, &pNewDACL) != ERROR_SUCCESS) | |
1908 | return; | |
1909 | ||
0b3929a6 | 1910 | if (SetNamedSecurityInfo |
1911 | (wname, SE_FILE_OBJECT, | |
7db1ef17 | 1912 | DACL_SECURITY_INFORMATION, NULL, NULL, pNewDACL, NULL) != ERROR_SUCCESS) |
1913 | return; | |
1914 | ||
1915 | LocalFree (pSD); | |
1916 | LocalFree (pNewDACL); | |
7db1ef17 | 1917 | } |
57ecb969 | 1918 | |
1919 | /* Check if it is possible to use ACL for wname, the file must not be on a | |
1920 | network drive. */ | |
1921 | ||
1922 | static int | |
1923 | __gnat_can_use_acl (TCHAR *wname) | |
1924 | { | |
1925 | return __gnat_use_acl && GetDriveTypeFromPath (wname) != DRIVE_REMOTE; | |
1926 | } | |
1927 | ||
b85b7cb2 | 1928 | #endif /* defined (_WIN32) */ |
7db1ef17 | 1929 | |
1fac938e | 1930 | int |
5f93bcbf | 1931 | __gnat_is_readable_file_attr (char* name, struct file_attributes* attr) |
9dfe12ae | 1932 | { |
24d7b9d6 | 1933 | if (attr->readable == ATTR_UNSET) |
1934 | { | |
b85b7cb2 | 1935 | #if defined (_WIN32) |
24d7b9d6 | 1936 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
1937 | GENERIC_MAPPING GenericMapping; | |
3855c659 | 1938 | |
24d7b9d6 | 1939 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
7db1ef17 | 1940 | |
24d7b9d6 | 1941 | if (__gnat_can_use_acl (wname)) |
1942 | { | |
1943 | ZeroMemory (&GenericMapping, sizeof (GENERIC_MAPPING)); | |
1944 | GenericMapping.GenericRead = GENERIC_READ; | |
1945 | attr->readable = | |
1946 | __gnat_check_OWNER_ACL (wname, FILE_READ_DATA, GenericMapping); | |
1947 | } | |
1948 | else | |
1949 | attr->readable = GetFileAttributes (wname) != INVALID_FILE_ATTRIBUTES; | |
7db1ef17 | 1950 | #else |
24d7b9d6 | 1951 | __gnat_stat_to_attr (-1, name, attr); |
7db1ef17 | 1952 | #endif |
24d7b9d6 | 1953 | } |
5f93bcbf | 1954 | |
1955 | return attr->readable; | |
9dfe12ae | 1956 | } |
1957 | ||
157671d1 | 1958 | int |
1959 | __gnat_is_read_accessible_file (char *name) | |
1960 | { | |
1961 | #if defined (_WIN32) | |
1962 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; | |
1963 | ||
1964 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); | |
1965 | ||
22fe687d | 1966 | return !_waccess (wname, 4); |
1967 | ||
1968 | #elif defined (__vxworks) | |
1969 | int fd; | |
1970 | ||
142436b8 | 1971 | if ((fd = open (name, O_RDONLY, 0)) < 0) |
22fe687d | 1972 | return 0; |
1973 | close (fd); | |
1974 | return 1; | |
1975 | ||
157671d1 | 1976 | #else |
1977 | return !access (name, R_OK); | |
1978 | #endif | |
1979 | } | |
1980 | ||
9dfe12ae | 1981 | int |
5f93bcbf | 1982 | __gnat_is_readable_file (char *name) |
1983 | { | |
1984 | struct file_attributes attr; | |
24d7b9d6 | 1985 | |
d2697a05 | 1986 | __gnat_reset_attributes (&attr); |
5f93bcbf | 1987 | return __gnat_is_readable_file_attr (name, &attr); |
1988 | } | |
1989 | ||
1990 | int | |
1991 | __gnat_is_writable_file_attr (char* name, struct file_attributes* attr) | |
1fac938e | 1992 | { |
24d7b9d6 | 1993 | if (attr->writable == ATTR_UNSET) |
1994 | { | |
b85b7cb2 | 1995 | #if defined (_WIN32) |
24d7b9d6 | 1996 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
1997 | GENERIC_MAPPING GenericMapping; | |
3855c659 | 1998 | |
24d7b9d6 | 1999 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
3855c659 | 2000 | |
24d7b9d6 | 2001 | if (__gnat_can_use_acl (wname)) |
2002 | { | |
2003 | ZeroMemory (&GenericMapping, sizeof (GENERIC_MAPPING)); | |
2004 | GenericMapping.GenericWrite = GENERIC_WRITE; | |
2726b813 | 2005 | |
24d7b9d6 | 2006 | attr->writable = __gnat_check_OWNER_ACL |
5f93bcbf | 2007 | (wname, FILE_WRITE_DATA | FILE_APPEND_DATA, GenericMapping) |
2008 | && !(GetFileAttributes (wname) & FILE_ATTRIBUTE_READONLY); | |
24d7b9d6 | 2009 | } |
2010 | else | |
2011 | attr->writable = | |
2012 | !(GetFileAttributes (wname) & FILE_ATTRIBUTE_READONLY); | |
7db1ef17 | 2013 | |
7db1ef17 | 2014 | #else |
24d7b9d6 | 2015 | __gnat_stat_to_attr (-1, name, attr); |
7db1ef17 | 2016 | #endif |
24d7b9d6 | 2017 | } |
5f93bcbf | 2018 | |
2019 | return attr->writable; | |
7db1ef17 | 2020 | } |
2021 | ||
2022 | int | |
5f93bcbf | 2023 | __gnat_is_writable_file (char *name) |
7db1ef17 | 2024 | { |
5f93bcbf | 2025 | struct file_attributes attr; |
24d7b9d6 | 2026 | |
d2697a05 | 2027 | __gnat_reset_attributes (&attr); |
5f93bcbf | 2028 | return __gnat_is_writable_file_attr (name, &attr); |
2029 | } | |
2030 | ||
157671d1 | 2031 | int |
2032 | __gnat_is_write_accessible_file (char *name) | |
2033 | { | |
2034 | #if defined (_WIN32) | |
2035 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; | |
2036 | ||
2037 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); | |
2038 | ||
22fe687d | 2039 | return !_waccess (wname, 2); |
2040 | ||
2041 | #elif defined (__vxworks) | |
2042 | int fd; | |
2043 | ||
142436b8 | 2044 | if ((fd = open (name, O_WRONLY, 0)) < 0) |
22fe687d | 2045 | return 0; |
2046 | close (fd); | |
2047 | return 1; | |
2048 | ||
157671d1 | 2049 | #else |
2050 | return !access (name, W_OK); | |
2051 | #endif | |
2052 | } | |
2053 | ||
5f93bcbf | 2054 | int |
2055 | __gnat_is_executable_file_attr (char* name, struct file_attributes* attr) | |
2056 | { | |
24d7b9d6 | 2057 | if (attr->executable == ATTR_UNSET) |
2058 | { | |
b85b7cb2 | 2059 | #if defined (_WIN32) |
24d7b9d6 | 2060 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
2061 | GENERIC_MAPPING GenericMapping; | |
3855c659 | 2062 | |
24d7b9d6 | 2063 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
3855c659 | 2064 | |
24d7b9d6 | 2065 | if (__gnat_can_use_acl (wname)) |
2066 | { | |
2067 | ZeroMemory (&GenericMapping, sizeof (GENERIC_MAPPING)); | |
2068 | GenericMapping.GenericExecute = GENERIC_EXECUTE; | |
2726b813 | 2069 | |
24d7b9d6 | 2070 | attr->executable = |
2071 | __gnat_check_OWNER_ACL (wname, FILE_EXECUTE, GenericMapping); | |
2072 | } | |
2073 | else | |
2074 | { | |
2075 | TCHAR *l, *last = _tcsstr(wname, _T(".exe")); | |
278c67dc | 2076 | |
24d7b9d6 | 2077 | /* look for last .exe */ |
2078 | if (last) | |
2079 | while ((l = _tcsstr(last+1, _T(".exe")))) | |
2080 | last = l; | |
278c67dc | 2081 | |
24d7b9d6 | 2082 | attr->executable = |
2083 | GetFileAttributes (wname) != INVALID_FILE_ATTRIBUTES | |
2084 | && (last - wname) == (int) (_tcslen (wname) - 4); | |
2085 | } | |
7db1ef17 | 2086 | #else |
24d7b9d6 | 2087 | __gnat_stat_to_attr (-1, name, attr); |
7db1ef17 | 2088 | #endif |
24d7b9d6 | 2089 | } |
5f93bcbf | 2090 | |
a5109493 | 2091 | return attr->regular && attr->executable; |
5f93bcbf | 2092 | } |
2093 | ||
2094 | int | |
2095 | __gnat_is_executable_file (char *name) | |
2096 | { | |
2097 | struct file_attributes attr; | |
24d7b9d6 | 2098 | |
d2697a05 | 2099 | __gnat_reset_attributes (&attr); |
5f93bcbf | 2100 | return __gnat_is_executable_file_attr (name, &attr); |
1fac938e | 2101 | } |
2102 | ||
9dfe12ae | 2103 | void |
2104 | __gnat_set_writable (char *name) | |
2105 | { | |
b85b7cb2 | 2106 | #if defined (_WIN32) |
3855c659 | 2107 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
2108 | ||
f60cc57d | 2109 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
3855c659 | 2110 | |
57ecb969 | 2111 | if (__gnat_can_use_acl (wname)) |
2726b813 | 2112 | __gnat_set_OWNER_ACL (wname, GRANT_ACCESS, FILE_GENERIC_WRITE); |
2113 | ||
3855c659 | 2114 | SetFileAttributes |
2115 | (wname, GetFileAttributes (wname) & ~FILE_ATTRIBUTE_READONLY); | |
b85b7cb2 | 2116 | #elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) |
8cb516d7 | 2117 | GNAT_STRUCT_STAT statbuf; |
9dfe12ae | 2118 | |
8cb516d7 | 2119 | if (GNAT_STAT (name, &statbuf) == 0) |
0e9e8338 | 2120 | { |
2121 | statbuf.st_mode = statbuf.st_mode | S_IWUSR; | |
2122 | chmod (name, statbuf.st_mode); | |
2123 | } | |
9dfe12ae | 2124 | #endif |
2125 | } | |
2126 | ||
c1efebf9 | 2127 | /* must match definition in s-os_lib.ads */ |
2128 | #define S_OWNER 1 | |
2129 | #define S_GROUP 2 | |
2130 | #define S_OTHERS 4 | |
2131 | ||
5329ca64 | 2132 | void |
c8a2d809 | 2133 | __gnat_set_executable (char *name, int mode ATTRIBUTE_UNUSED) |
5329ca64 | 2134 | { |
b85b7cb2 | 2135 | #if defined (_WIN32) |
3855c659 | 2136 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
2137 | ||
57ecb969 | 2138 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
2139 | ||
2140 | if (__gnat_can_use_acl (wname)) | |
2141 | __gnat_set_OWNER_ACL (wname, GRANT_ACCESS, FILE_GENERIC_EXECUTE); | |
3855c659 | 2142 | |
b85b7cb2 | 2143 | #elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) |
8cb516d7 | 2144 | GNAT_STRUCT_STAT statbuf; |
5329ca64 | 2145 | |
8cb516d7 | 2146 | if (GNAT_STAT (name, &statbuf) == 0) |
0e9e8338 | 2147 | { |
c1efebf9 | 2148 | if (mode & S_OWNER) |
2149 | statbuf.st_mode = statbuf.st_mode | S_IXUSR; | |
2150 | if (mode & S_GROUP) | |
2151 | statbuf.st_mode = statbuf.st_mode | S_IXGRP; | |
2152 | if (mode & S_OTHERS) | |
2153 | statbuf.st_mode = statbuf.st_mode | S_IXOTH; | |
0e9e8338 | 2154 | chmod (name, statbuf.st_mode); |
2155 | } | |
5329ca64 | 2156 | #endif |
2157 | } | |
2158 | ||
9dfe12ae | 2159 | void |
2ab009c7 | 2160 | __gnat_set_non_writable (char *name) |
9dfe12ae | 2161 | { |
b85b7cb2 | 2162 | #if defined (_WIN32) |
3855c659 | 2163 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
2164 | ||
f60cc57d | 2165 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
3855c659 | 2166 | |
57ecb969 | 2167 | if (__gnat_can_use_acl (wname)) |
2726b813 | 2168 | __gnat_set_OWNER_ACL |
2169 | (wname, DENY_ACCESS, | |
2170 | FILE_WRITE_DATA | FILE_APPEND_DATA | | |
2171 | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES); | |
2172 | ||
3855c659 | 2173 | SetFileAttributes |
2174 | (wname, GetFileAttributes (wname) | FILE_ATTRIBUTE_READONLY); | |
b85b7cb2 | 2175 | #elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) |
8cb516d7 | 2176 | GNAT_STRUCT_STAT statbuf; |
9dfe12ae | 2177 | |
8cb516d7 | 2178 | if (GNAT_STAT (name, &statbuf) == 0) |
0b3929a6 | 2179 | { |
2180 | statbuf.st_mode = statbuf.st_mode & 07577; | |
2181 | chmod (name, statbuf.st_mode); | |
2182 | } | |
2183 | #endif | |
2184 | } | |
2185 | ||
2186 | void | |
2187 | __gnat_set_readable (char *name) | |
2188 | { | |
b85b7cb2 | 2189 | #if defined (_WIN32) |
0b3929a6 | 2190 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
2191 | ||
57ecb969 | 2192 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
2193 | ||
2194 | if (__gnat_can_use_acl (wname)) | |
2195 | __gnat_set_OWNER_ACL (wname, GRANT_ACCESS, FILE_GENERIC_READ); | |
0b3929a6 | 2196 | |
b85b7cb2 | 2197 | #elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) |
8cb516d7 | 2198 | GNAT_STRUCT_STAT statbuf; |
0b3929a6 | 2199 | |
8cb516d7 | 2200 | if (GNAT_STAT (name, &statbuf) == 0) |
0b3929a6 | 2201 | { |
2202 | chmod (name, statbuf.st_mode | S_IREAD); | |
2203 | } | |
2204 | #endif | |
2205 | } | |
2206 | ||
2207 | void | |
2208 | __gnat_set_non_readable (char *name) | |
2209 | { | |
b85b7cb2 | 2210 | #if defined (_WIN32) |
0b3929a6 | 2211 | TCHAR wname [GNAT_MAX_PATH_LEN + 2]; |
2212 | ||
57ecb969 | 2213 | S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); |
2214 | ||
2215 | if (__gnat_can_use_acl (wname)) | |
2216 | __gnat_set_OWNER_ACL (wname, DENY_ACCESS, FILE_GENERIC_READ); | |
0b3929a6 | 2217 | |
b85b7cb2 | 2218 | #elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) |
8cb516d7 | 2219 | GNAT_STRUCT_STAT statbuf; |
0b3929a6 | 2220 | |
8cb516d7 | 2221 | if (GNAT_STAT (name, &statbuf) == 0) |
0b3929a6 | 2222 | { |
2223 | chmod (name, statbuf.st_mode & (~S_IREAD)); | |
2224 | } | |
9dfe12ae | 2225 | #endif |
2226 | } | |
2227 | ||
2228 | int | |
9b52e7a7 | 2229 | __gnat_is_symbolic_link_attr (char* name ATTRIBUTE_UNUSED, |
2230 | struct file_attributes* attr) | |
9dfe12ae | 2231 | { |
24d7b9d6 | 2232 | if (attr->symbolic_link == ATTR_UNSET) |
2233 | { | |
b85b7cb2 | 2234 | #if defined (__vxworks) |
24d7b9d6 | 2235 | attr->symbolic_link = 0; |
9dfe12ae | 2236 | |
8e761191 | 2237 | #elif defined (_AIX) || defined (__APPLE__) || defined (__unix__) |
24d7b9d6 | 2238 | int ret; |
2239 | GNAT_STRUCT_STAT statbuf; | |
2240 | ret = GNAT_LSTAT (name, &statbuf); | |
2241 | attr->symbolic_link = (!ret && S_ISLNK (statbuf.st_mode)); | |
9dfe12ae | 2242 | #else |
24d7b9d6 | 2243 | attr->symbolic_link = 0; |
9dfe12ae | 2244 | #endif |
24d7b9d6 | 2245 | } |
5f93bcbf | 2246 | return attr->symbolic_link; |
2247 | } | |
2248 | ||
2249 | int | |
2250 | __gnat_is_symbolic_link (char *name ATTRIBUTE_UNUSED) | |
2251 | { | |
2252 | struct file_attributes attr; | |
24d7b9d6 | 2253 | |
d2697a05 | 2254 | __gnat_reset_attributes (&attr); |
5f93bcbf | 2255 | return __gnat_is_symbolic_link_attr (name, &attr); |
9dfe12ae | 2256 | } |
2257 | ||
3d230452 | 2258 | #if defined (__sun__) |
1fac938e | 2259 | /* Using fork on Solaris will duplicate all the threads. fork1, which |
2260 | duplicates only the active thread, must be used instead, or spawning | |
2261 | subprocess from a program with tasking will lead into numerous problems. */ | |
2262 | #define fork fork1 | |
2263 | #endif | |
2264 | ||
2265 | int | |
8cb1db0d | 2266 | __gnat_portable_spawn (char *args[] ATTRIBUTE_UNUSED) |
1fac938e | 2267 | { |
8cb1db0d | 2268 | int status ATTRIBUTE_UNUSED = 0; |
f0a28ccb | 2269 | int finished ATTRIBUTE_UNUSED; |
2270 | int pid ATTRIBUTE_UNUSED; | |
1fac938e | 2271 | |
b85b7cb2 | 2272 | #if defined (__vxworks) || defined(__PikeOS__) |
e2a33c18 | 2273 | return -1; |
2274 | ||
f28fa6a2 | 2275 | #elif defined (__DJGPP__) || defined (_WIN32) |
f270dc82 | 2276 | /* args[0] must be quotes as it could contain a full pathname with spaces */ |
38750fcd | 2277 | char *args_0 = args[0]; |
f270dc82 | 2278 | args[0] = (char *)xmalloc (strlen (args_0) + 3); |
2279 | strcpy (args[0], "\""); | |
2280 | strcat (args[0], args_0); | |
2281 | strcat (args[0], "\""); | |
2282 | ||
c8a2d809 | 2283 | status = spawnvp (P_WAIT, args_0, (char ** const)args); |
f270dc82 | 2284 | |
2285 | /* restore previous value */ | |
2286 | free (args[0]); | |
8e761191 | 2287 | args[0] = (char *)args_0; |
f270dc82 | 2288 | |
1fac938e | 2289 | if (status < 0) |
f15731c4 | 2290 | return -1; |
1fac938e | 2291 | else |
2292 | return status; | |
2293 | ||
1fac938e | 2294 | #else |
2295 | ||
1fac938e | 2296 | pid = fork (); |
f15731c4 | 2297 | if (pid < 0) |
2298 | return -1; | |
1fac938e | 2299 | |
f15731c4 | 2300 | if (pid == 0) |
2301 | { | |
2302 | /* The child. */ | |
6d9c3443 | 2303 | if (execv (args[0], MAYBE_TO_PTR32 (args)) != 0) |
69d33a1d | 2304 | _exit (1); |
f15731c4 | 2305 | } |
1fac938e | 2306 | |
f15731c4 | 2307 | /* The parent. */ |
1fac938e | 2308 | finished = waitpid (pid, &status, 0); |
2309 | ||
2310 | if (finished != pid || WIFEXITED (status) == 0) | |
f15731c4 | 2311 | return -1; |
1fac938e | 2312 | |
2313 | return WEXITSTATUS (status); | |
2314 | #endif | |
f15731c4 | 2315 | |
1fac938e | 2316 | return 0; |
2317 | } | |
2318 | ||
8e761191 | 2319 | /* Create a copy of the given file descriptor. |
2320 | Return -1 if an error occurred. */ | |
2321 | ||
2322 | int | |
2323 | __gnat_dup (int oldfd) | |
2324 | { | |
8ffbc401 | 2325 | #if defined (__vxworks) && !defined (__RTP__) |
2326 | /* Not supported on VxWorks 5.x, but supported on VxWorks 6.0 when using | |
2327 | RTPs. */ | |
2328 | return -1; | |
8e761191 | 2329 | #else |
8ffbc401 | 2330 | return dup (oldfd); |
8e761191 | 2331 | #endif |
2332 | } | |
2333 | ||
2334 | /* Make newfd be the copy of oldfd, closing newfd first if necessary. | |
5e947a95 | 2335 | Return -1 if an error occurred. */ |
8e761191 | 2336 | |
2337 | int | |
8cb1db0d | 2338 | __gnat_dup2 (int oldfd ATTRIBUTE_UNUSED, int newfd ATTRIBUTE_UNUSED) |
8e761191 | 2339 | { |
8ffbc401 | 2340 | #if defined (__vxworks) && !defined (__RTP__) |
2341 | /* Not supported on VxWorks 5.x, but supported on VxWorks 6.0 when using | |
2342 | RTPs. */ | |
8e761191 | 2343 | return -1; |
8cb1db0d | 2344 | #elif defined (__PikeOS__) |
fb62484e | 2345 | /* Not supported. */ |
8cb1db0d | 2346 | return -1; |
00234530 | 2347 | #elif defined (_WIN32) |
2348 | /* Special case when oldfd and newfd are identical and are the standard | |
2349 | input, output or error as this makes Windows XP hangs. Note that we | |
2350 | do that only for standard file descriptors that are known to be valid. */ | |
2351 | if (oldfd == newfd && newfd >= 0 && newfd <= 2) | |
2352 | return newfd; | |
2353 | else | |
2354 | return dup2 (oldfd, newfd); | |
8e761191 | 2355 | #else |
2356 | return dup2 (oldfd, newfd); | |
2357 | #endif | |
2358 | } | |
2359 | ||
ed8e5b83 | 2360 | int |
2361 | __gnat_number_of_cpus (void) | |
2362 | { | |
2363 | int cores = 1; | |
2364 | ||
3d230452 | 2365 | #if defined (__linux__) || defined (__sun__) || defined (_AIX) \ |
87e3f630 | 2366 | || defined (__APPLE__) || defined (__FreeBSD__) || defined (__OpenBSD__) \ |
fcaeb9c7 | 2367 | || defined (__DragonFly__) || defined (__NetBSD__) |
f7479d84 | 2368 | cores = (int) sysconf (_SC_NPROCESSORS_ONLN); |
90bc406c | 2369 | |
fcaeb9c7 | 2370 | #elif defined (__QNX__) |
2371 | cores = (int) _syspage_ptr->num_cpu; | |
2372 | ||
90bc406c | 2373 | #elif defined (__hpux__) |
f7479d84 | 2374 | struct pst_dynamic psd; |
2375 | if (pstat_getdynamic (&psd, sizeof (psd), 1, 0) != -1) | |
2376 | cores = (int) psd.psd_proc_cnt; | |
90bc406c | 2377 | |
ee0d6223 | 2378 | #elif defined (_WIN32) |
2379 | SYSTEM_INFO sysinfo; | |
2380 | GetSystemInfo (&sysinfo); | |
2381 | cores = (int) sysinfo.dwNumberOfProcessors; | |
9b1d6aeb | 2382 | |
e423341f | 2383 | #elif defined (_WRS_CONFIG_SMP) |
0f4d3df5 | 2384 | unsigned int vxCpuConfiguredGet (void); |
2385 | ||
2386 | cores = vxCpuConfiguredGet (); | |
2387 | ||
ed8e5b83 | 2388 | #endif |
2389 | ||
2390 | return cores; | |
2391 | } | |
2392 | ||
f15731c4 | 2393 | /* WIN32 code to implement a wait call that wait for any child process. */ |
2394 | ||
b85b7cb2 | 2395 | #if defined (_WIN32) |
1fac938e | 2396 | |
2397 | /* Synchronization code, to be thread safe. */ | |
2398 | ||
51fa65dc | 2399 | #ifdef CERT |
1fac938e | 2400 | |
51fa65dc | 2401 | /* For the Cert run times on native Windows we use dummy functions |
2402 | for locking and unlocking tasks since we do not support multiple | |
2403 | threads on this configuration (Cert run time on native Windows). */ | |
1fac938e | 2404 | |
4bdd5344 | 2405 | static void EnterCS (void) {} |
2406 | static void LeaveCS (void) {} | |
2407 | static void SignalListChanged (void) {} | |
51fa65dc | 2408 | |
2409 | #else | |
2410 | ||
4bdd5344 | 2411 | CRITICAL_SECTION ProcListCS; |
35bd138f | 2412 | HANDLE ProcListEvt = NULL; |
4bdd5344 | 2413 | |
2414 | static void EnterCS (void) | |
2415 | { | |
2416 | EnterCriticalSection(&ProcListCS); | |
2417 | } | |
51fa65dc | 2418 | |
4bdd5344 | 2419 | static void LeaveCS (void) |
2420 | { | |
2421 | LeaveCriticalSection(&ProcListCS); | |
2422 | } | |
2423 | ||
2424 | static void SignalListChanged (void) | |
2425 | { | |
2426 | SetEvent (ProcListEvt); | |
2427 | } | |
51fa65dc | 2428 | |
2429 | #endif | |
1fac938e | 2430 | |
4c4697b8 | 2431 | static HANDLE *HANDLES_LIST = NULL; |
2432 | static int *PID_LIST = NULL, plist_length = 0, plist_max_length = 0; | |
1fac938e | 2433 | |
2434 | static void | |
14d22a3f | 2435 | add_handle (HANDLE h, int pid) |
1fac938e | 2436 | { |
1fac938e | 2437 | /* -------------------- critical section -------------------- */ |
4bdd5344 | 2438 | EnterCS(); |
51fa65dc | 2439 | |
4c4697b8 | 2440 | if (plist_length == plist_max_length) |
2441 | { | |
bb16a9f9 | 2442 | plist_max_length += 100; |
4c4697b8 | 2443 | HANDLES_LIST = |
c8a2d809 | 2444 | (HANDLE *) xrealloc (HANDLES_LIST, sizeof (HANDLE) * plist_max_length); |
4c4697b8 | 2445 | PID_LIST = |
2b2212d1 | 2446 | (int *) xrealloc (PID_LIST, sizeof (int) * plist_max_length); |
4c4697b8 | 2447 | } |
2448 | ||
2449 | HANDLES_LIST[plist_length] = h; | |
14d22a3f | 2450 | PID_LIST[plist_length] = pid; |
1fac938e | 2451 | ++plist_length; |
1fac938e | 2452 | |
4bdd5344 | 2453 | SignalListChanged(); |
2454 | LeaveCS(); | |
51fa65dc | 2455 | /* -------------------- critical section -------------------- */ |
1fac938e | 2456 | } |
2457 | ||
4bdd5344 | 2458 | int |
2459 | __gnat_win32_remove_handle (HANDLE h, int pid) | |
1fac938e | 2460 | { |
4c4697b8 | 2461 | int j; |
4bdd5344 | 2462 | int found = 0; |
2463 | ||
2464 | /* -------------------- critical section -------------------- */ | |
2465 | EnterCS(); | |
1fac938e | 2466 | |
4c4697b8 | 2467 | for (j = 0; j < plist_length; j++) |
1fac938e | 2468 | { |
4c4697b8 | 2469 | if ((HANDLES_LIST[j] == h) || (PID_LIST[j] == pid)) |
1fac938e | 2470 | { |
4c4697b8 | 2471 | CloseHandle (h); |
2472 | --plist_length; | |
2473 | HANDLES_LIST[j] = HANDLES_LIST[plist_length]; | |
2474 | PID_LIST[j] = PID_LIST[plist_length]; | |
4bdd5344 | 2475 | found = 1; |
1fac938e | 2476 | break; |
2477 | } | |
1fac938e | 2478 | } |
92c3bf26 | 2479 | |
4bdd5344 | 2480 | LeaveCS(); |
92c3bf26 | 2481 | /* -------------------- critical section -------------------- */ |
92c3bf26 | 2482 | |
4bdd5344 | 2483 | if (found) |
2484 | SignalListChanged(); | |
1fac938e | 2485 | |
4bdd5344 | 2486 | return found; |
1fac938e | 2487 | } |
2488 | ||
14d22a3f | 2489 | static void |
2490 | win32_no_block_spawn (char *command, char *args[], HANDLE *h, int *pid) | |
1fac938e | 2491 | { |
2492 | BOOL result; | |
2493 | STARTUPINFO SI; | |
2494 | PROCESS_INFORMATION PI; | |
2495 | SECURITY_ATTRIBUTES SA; | |
f15731c4 | 2496 | int csize = 1; |
2497 | char *full_command; | |
1fac938e | 2498 | int k; |
2499 | ||
f15731c4 | 2500 | /* compute the total command line length */ |
2501 | k = 0; | |
2502 | while (args[k]) | |
2503 | { | |
2504 | csize += strlen (args[k]) + 1; | |
2505 | k++; | |
2506 | } | |
2507 | ||
2508 | full_command = (char *) xmalloc (csize); | |
2509 | ||
1fac938e | 2510 | /* Startup info. */ |
2511 | SI.cb = sizeof (STARTUPINFO); | |
2512 | SI.lpReserved = NULL; | |
2513 | SI.lpReserved2 = NULL; | |
2514 | SI.lpDesktop = NULL; | |
2515 | SI.cbReserved2 = 0; | |
2516 | SI.lpTitle = NULL; | |
2517 | SI.dwFlags = 0; | |
2518 | SI.wShowWindow = SW_HIDE; | |
2519 | ||
2520 | /* Security attributes. */ | |
2521 | SA.nLength = sizeof (SECURITY_ATTRIBUTES); | |
2522 | SA.bInheritHandle = TRUE; | |
2523 | SA.lpSecurityDescriptor = NULL; | |
2524 | ||
2525 | /* Prepare the command string. */ | |
2526 | strcpy (full_command, command); | |
2527 | strcat (full_command, " "); | |
2528 | ||
2529 | k = 1; | |
2530 | while (args[k]) | |
2531 | { | |
2532 | strcat (full_command, args[k]); | |
2533 | strcat (full_command, " "); | |
2534 | k++; | |
2535 | } | |
2536 | ||
3b18b370 | 2537 | { |
2538 | int wsize = csize * 2; | |
2539 | TCHAR *wcommand = (TCHAR *) xmalloc (wsize); | |
2540 | ||
f60cc57d | 2541 | S2WSC (wcommand, full_command, wsize); |
3b18b370 | 2542 | |
2543 | free (full_command); | |
1fac938e | 2544 | |
3b18b370 | 2545 | result = CreateProcess |
2546 | (NULL, wcommand, &SA, NULL, TRUE, | |
2547 | GetPriorityClass (GetCurrentProcess()), NULL, NULL, &SI, &PI); | |
2548 | ||
2549 | free (wcommand); | |
2550 | } | |
f15731c4 | 2551 | |
1fac938e | 2552 | if (result == TRUE) |
2553 | { | |
1fac938e | 2554 | CloseHandle (PI.hThread); |
14d22a3f | 2555 | *h = PI.hProcess; |
2556 | *pid = PI.dwProcessId; | |
1fac938e | 2557 | } |
2558 | else | |
14d22a3f | 2559 | { |
2560 | *h = NULL; | |
2561 | *pid = 0; | |
2562 | } | |
1fac938e | 2563 | } |
2564 | ||
2565 | static int | |
9dfe12ae | 2566 | win32_wait (int *status) |
1fac938e | 2567 | { |
4c4697b8 | 2568 | DWORD exitcode, pid; |
1fac938e | 2569 | HANDLE *hl; |
2570 | HANDLE h; | |
4bdd5344 | 2571 | int *pidl; |
1fac938e | 2572 | DWORD res; |
e41b023d | 2573 | int hl_len; |
4bdd5344 | 2574 | int found; |
f0eefc2e | 2575 | int pos; |
1fac938e | 2576 | |
4bdd5344 | 2577 | START_WAIT: |
92c3bf26 | 2578 | |
1fac938e | 2579 | if (plist_length == 0) |
2580 | { | |
2581 | errno = ECHILD; | |
2582 | return -1; | |
2583 | } | |
2584 | ||
4bdd5344 | 2585 | /* -------------------- critical section -------------------- */ |
2586 | EnterCS(); | |
2587 | ||
f0eefc2e | 2588 | /* ??? We can't wait for more than MAXIMUM_WAIT_OBJECTS due to a Win32 |
2589 | limitation */ | |
2590 | if (plist_length < MAXIMUM_WAIT_OBJECTS) | |
e41b023d | 2591 | hl_len = plist_length; |
f0eefc2e | 2592 | else |
2593 | { | |
2594 | errno = EINVAL; | |
2595 | return -1; | |
2596 | } | |
e41b023d | 2597 | |
4bdd5344 | 2598 | #ifdef CERT |
e41b023d | 2599 | hl = (HANDLE *) xmalloc (sizeof (HANDLE) * hl_len); |
4c4697b8 | 2600 | memmove (hl, HANDLES_LIST, sizeof (HANDLE) * hl_len); |
4bdd5344 | 2601 | pidl = (int *) xmalloc (sizeof (int) * hl_len); |
2602 | memmove (pidl, PID_LIST, sizeof (int) * hl_len); | |
2603 | #else | |
2be1f7d7 | 2604 | /* Note that index 0 contains the event handle that is signaled when the |
4bdd5344 | 2605 | process list has changed */ |
ab3a058b | 2606 | hl = (HANDLE *) xmalloc (sizeof (HANDLE) * (hl_len + 1)); |
4bdd5344 | 2607 | hl[0] = ProcListEvt; |
2608 | memmove (&hl[1], HANDLES_LIST, sizeof (HANDLE) * hl_len); | |
ab3a058b | 2609 | pidl = (int *) xmalloc (sizeof (int) * (hl_len + 1)); |
4bdd5344 | 2610 | memmove (&pidl[1], PID_LIST, sizeof (int) * hl_len); |
2611 | hl_len++; | |
2612 | #endif | |
2613 | ||
2614 | LeaveCS(); | |
2615 | /* -------------------- critical section -------------------- */ | |
1fac938e | 2616 | |
e41b023d | 2617 | res = WaitForMultipleObjects (hl_len, hl, FALSE, INFINITE); |
1fac938e | 2618 | |
f0eefc2e | 2619 | /* If there was an error, exit now */ |
2620 | if (res == WAIT_FAILED) | |
2621 | { | |
90fb08fb | 2622 | free (hl); |
2623 | free (pidl); | |
f0eefc2e | 2624 | errno = EINVAL; |
2625 | return -1; | |
2626 | } | |
2627 | ||
4bdd5344 | 2628 | /* if the ProcListEvt has been signaled then the list of processes has been |
2629 | updated to add or remove a handle, just loop over */ | |
2630 | ||
2631 | if (res - WAIT_OBJECT_0 == 0) | |
2632 | { | |
2633 | free (hl); | |
2634 | free (pidl); | |
2635 | goto START_WAIT; | |
2636 | } | |
2637 | ||
f0eefc2e | 2638 | /* Handle two distinct groups of return codes: finished waits and abandoned |
2639 | waits */ | |
2640 | ||
2641 | if (res < WAIT_ABANDONED_0) | |
2642 | pos = res - WAIT_OBJECT_0; | |
2643 | else | |
2644 | pos = res - WAIT_ABANDONED_0; | |
2645 | ||
2646 | h = hl[pos]; | |
1fac938e | 2647 | GetExitCodeProcess (h, &exitcode); |
f0eefc2e | 2648 | pid = pidl [pos]; |
4bdd5344 | 2649 | |
2650 | found = __gnat_win32_remove_handle (h, -1); | |
4c4697b8 | 2651 | |
2652 | free (hl); | |
4bdd5344 | 2653 | free (pidl); |
2654 | ||
2655 | /* if not found another process waiting has already handled this process */ | |
2656 | ||
2657 | if (!found) | |
2658 | { | |
2659 | goto START_WAIT; | |
2660 | } | |
1fac938e | 2661 | |
2662 | *status = (int) exitcode; | |
4c4697b8 | 2663 | return (int) pid; |
1fac938e | 2664 | } |
2665 | ||
2666 | #endif | |
2667 | ||
2668 | int | |
8cb1db0d | 2669 | __gnat_portable_no_block_spawn (char *args[] ATTRIBUTE_UNUSED) |
1fac938e | 2670 | { |
1fac938e | 2671 | |
b85b7cb2 | 2672 | #if defined (__vxworks) || defined (__PikeOS__) |
8cb1db0d | 2673 | /* Not supported. */ |
e2a33c18 | 2674 | return -1; |
2675 | ||
f28fa6a2 | 2676 | #elif defined(__DJGPP__) |
2677 | if (spawnvp (P_WAIT, args[0], args) != 0) | |
2678 | return -1; | |
2679 | else | |
2680 | return 0; | |
2681 | ||
1fac938e | 2682 | #elif defined (_WIN32) |
2683 | ||
4c4697b8 | 2684 | HANDLE h = NULL; |
14d22a3f | 2685 | int pid; |
4c4697b8 | 2686 | |
14d22a3f | 2687 | win32_no_block_spawn (args[0], args, &h, &pid); |
4c4697b8 | 2688 | if (h != NULL) |
5d56d161 | 2689 | { |
14d22a3f | 2690 | add_handle (h, pid); |
2691 | return pid; | |
5d56d161 | 2692 | } |
2693 | else | |
2694 | return -1; | |
1fac938e | 2695 | |
1fac938e | 2696 | #else |
4c4697b8 | 2697 | |
2698 | int pid = fork (); | |
1fac938e | 2699 | |
f15731c4 | 2700 | if (pid == 0) |
2701 | { | |
2702 | /* The child. */ | |
6d9c3443 | 2703 | if (execv (args[0], MAYBE_TO_PTR32 (args)) != 0) |
69d33a1d | 2704 | _exit (1); |
f15731c4 | 2705 | } |
2706 | ||
1fac938e | 2707 | return pid; |
4c4697b8 | 2708 | |
2709 | #endif | |
1fac938e | 2710 | } |
2711 | ||
2712 | int | |
9dfe12ae | 2713 | __gnat_portable_wait (int *process_status) |
1fac938e | 2714 | { |
2715 | int status = 0; | |
2716 | int pid = 0; | |
2717 | ||
b85b7cb2 | 2718 | #if defined (__vxworks) || defined (__PikeOS__) |
30592778 | 2719 | /* Not sure what to do here, so do nothing but return zero. */ |
e2a33c18 | 2720 | |
2721 | #elif defined (_WIN32) | |
1fac938e | 2722 | |
2723 | pid = win32_wait (&status); | |
2724 | ||
f28fa6a2 | 2725 | #elif defined (__DJGPP__) |
2726 | /* Child process has already ended in case of DJGPP. | |
2727 | No need to do anything. Just return success. */ | |
1fac938e | 2728 | #else |
2729 | ||
1fac938e | 2730 | pid = waitpid (-1, &status, 0); |
1fac938e | 2731 | status = status & 0xffff; |
fb62484e | 2732 | #endif |
2733 | ||
2734 | *process_status = status; | |
2735 | return pid; | |
2736 | } | |
2737 | ||
2738 | int | |
2739 | __gnat_portable_no_block_wait (int *process_status) | |
2740 | { | |
2741 | int status = 0; | |
2742 | int pid = 0; | |
2743 | ||
2744 | #if defined (__vxworks) || defined (__PikeOS__) || defined (_WIN32) | |
2745 | /* Not supported. */ | |
2746 | status = -1; | |
2747 | ||
2748 | #else | |
2749 | ||
2750 | pid = waitpid (-1, &status, WNOHANG); | |
2751 | status = status & 0xffff; | |
1fac938e | 2752 | #endif |
2753 | ||
2754 | *process_status = status; | |
2755 | return pid; | |
2756 | } | |
2757 | ||
2758 | void | |
9dfe12ae | 2759 | __gnat_os_exit (int status) |
1fac938e | 2760 | { |
1fac938e | 2761 | exit (status); |
1fac938e | 2762 | } |
2763 | ||
ba662f09 | 2764 | int |
2765 | __gnat_current_process_id (void) | |
2766 | { | |
2767 | #if defined (__vxworks) || defined (__PikeOS__) | |
2768 | return -1; | |
2769 | ||
2770 | #elif defined (_WIN32) | |
2771 | ||
2772 | return (int)GetCurrentProcessId(); | |
2773 | ||
2774 | #else | |
2775 | ||
2776 | return (int)getpid(); | |
2777 | #endif | |
2778 | } | |
2779 | ||
b860aaec | 2780 | /* Locate file on path, that matches a predicate */ |
1fac938e | 2781 | |
2782 | char * | |
24d7b9d6 | 2783 | __gnat_locate_file_with_predicate (char *file_name, char *path_val, |
2784 | int (*predicate)(char *)) | |
1fac938e | 2785 | { |
2786 | char *ptr; | |
5703e222 | 2787 | char *file_path = (char *) alloca (strlen (file_name) + 1); |
c69ba469 | 2788 | int absolute; |
2789 | ||
b51bcb1c | 2790 | /* Return immediately if file_name is empty */ |
2791 | ||
2792 | if (*file_name == '\0') | |
2793 | return 0; | |
2794 | ||
c69ba469 | 2795 | /* Remove quotes around file_name if present */ |
2796 | ||
2797 | ptr = file_name; | |
2798 | if (*ptr == '"') | |
2799 | ptr++; | |
2800 | ||
2801 | strcpy (file_path, ptr); | |
2802 | ||
2803 | ptr = file_path + strlen (file_path) - 1; | |
2804 | ||
2805 | if (*ptr == '"') | |
2806 | *ptr = '\0'; | |
1fac938e | 2807 | |
f15731c4 | 2808 | /* Handle absolute pathnames. */ |
c69ba469 | 2809 | |
2810 | absolute = __gnat_is_absolute_path (file_path, strlen (file_name)); | |
2811 | ||
9dfe12ae | 2812 | if (absolute) |
2813 | { | |
b860aaec | 2814 | if (predicate (file_path)) |
c69ba469 | 2815 | return xstrdup (file_path); |
9dfe12ae | 2816 | |
2817 | return 0; | |
2818 | } | |
2819 | ||
2820 | /* If file_name include directory separator(s), try it first as | |
2821 | a path name relative to the current directory */ | |
1fac938e | 2822 | for (ptr = file_name; *ptr && *ptr != '/' && *ptr != DIR_SEPARATOR; ptr++) |
2823 | ; | |
2824 | ||
9dfe12ae | 2825 | if (*ptr != 0) |
1fac938e | 2826 | { |
b860aaec | 2827 | if (predicate (file_name)) |
1fac938e | 2828 | return xstrdup (file_name); |
1fac938e | 2829 | } |
2830 | ||
2831 | if (path_val == 0) | |
2832 | return 0; | |
2833 | ||
2834 | { | |
2835 | /* The result has to be smaller than path_val + file_name. */ | |
d9c927cc | 2836 | char *file_path = |
2837 | (char *) alloca (strlen (path_val) + strlen (file_name) + 2); | |
1fac938e | 2838 | |
2839 | for (;;) | |
2840 | { | |
c69ba469 | 2841 | /* Skip the starting quote */ |
2842 | ||
2843 | if (*path_val == '"') | |
69d33a1d | 2844 | path_val++; |
c69ba469 | 2845 | |
1fac938e | 2846 | for (ptr = file_path; *path_val && *path_val != PATH_SEPARATOR; ) |
69d33a1d | 2847 | *ptr++ = *path_val++; |
1fac938e | 2848 | |
5c182b3b | 2849 | /* If directory is empty, it is the current directory*/ |
2850 | ||
2851 | if (ptr == file_path) | |
2852 | { | |
2853 | *ptr = '.'; | |
2854 | } | |
2855 | else | |
2856 | ptr--; | |
c69ba469 | 2857 | |
2858 | /* Skip the ending quote */ | |
2859 | ||
2860 | if (*ptr == '"') | |
69d33a1d | 2861 | ptr--; |
c69ba469 | 2862 | |
1fac938e | 2863 | if (*ptr != '/' && *ptr != DIR_SEPARATOR) |
2864 | *++ptr = DIR_SEPARATOR; | |
2865 | ||
2866 | strcpy (++ptr, file_name); | |
2867 | ||
b860aaec | 2868 | if (predicate (file_path)) |
1fac938e | 2869 | return xstrdup (file_path); |
5c182b3b | 2870 | |
2871 | if (*path_val == 0) | |
2872 | return 0; | |
2873 | ||
2874 | /* Skip path separator */ | |
2875 | ||
2876 | path_val++; | |
1fac938e | 2877 | } |
2878 | } | |
2879 | ||
2880 | return 0; | |
2881 | } | |
2882 | ||
b860aaec | 2883 | /* Locate an executable file, give a Path value. */ |
2884 | ||
2885 | char * | |
2886 | __gnat_locate_executable_file (char *file_name, char *path_val) | |
2887 | { | |
2888 | return __gnat_locate_file_with_predicate | |
2889 | (file_name, path_val, &__gnat_is_executable_file); | |
2890 | } | |
2891 | ||
2892 | /* Locate a regular file, give a Path value. */ | |
2893 | ||
2894 | char * | |
2895 | __gnat_locate_regular_file (char *file_name, char *path_val) | |
2896 | { | |
2897 | return __gnat_locate_file_with_predicate | |
2898 | (file_name, path_val, &__gnat_is_regular_file); | |
2899 | } | |
2900 | ||
1fac938e | 2901 | /* Locate an executable given a Path argument. This routine is only used by |
2902 | gnatbl and should not be used otherwise. Use locate_exec_on_path | |
f15731c4 | 2903 | instead. */ |
1fac938e | 2904 | |
2905 | char * | |
9dfe12ae | 2906 | __gnat_locate_exec (char *exec_name, char *path_val) |
1fac938e | 2907 | { |
5e8c91e3 | 2908 | const unsigned int len = strlen (HOST_EXECUTABLE_SUFFIX); |
fb31b465 | 2909 | char *ptr; |
5e8c91e3 | 2910 | |
2911 | if (len > 0 && !strstr (exec_name, HOST_EXECUTABLE_SUFFIX)) | |
1fac938e | 2912 | { |
5e8c91e3 | 2913 | char *full_exec_name = (char *) alloca (strlen (exec_name) + len + 1); |
1fac938e | 2914 | |
2915 | strcpy (full_exec_name, exec_name); | |
2916 | strcat (full_exec_name, HOST_EXECUTABLE_SUFFIX); | |
b860aaec | 2917 | ptr = __gnat_locate_executable_file (full_exec_name, path_val); |
fb31b465 | 2918 | |
2919 | if (ptr == 0) | |
b860aaec | 2920 | return __gnat_locate_executable_file (exec_name, path_val); |
fb31b465 | 2921 | return ptr; |
1fac938e | 2922 | } |
2923 | else | |
b860aaec | 2924 | return __gnat_locate_executable_file (exec_name, path_val); |
1fac938e | 2925 | } |
2926 | ||
f15731c4 | 2927 | /* Locate an executable using the Systems default PATH. */ |
1fac938e | 2928 | |
2929 | char * | |
9dfe12ae | 2930 | __gnat_locate_exec_on_path (char *exec_name) |
1fac938e | 2931 | { |
9dfe12ae | 2932 | char *apath_val; |
3b18b370 | 2933 | |
b85b7cb2 | 2934 | #if defined (_WIN32) |
3b18b370 | 2935 | TCHAR *wpath_val = _tgetenv (_T("PATH")); |
2936 | TCHAR *wapath_val; | |
9dfe12ae | 2937 | /* In Win32 systems we expand the PATH as for XP environment |
c69ba469 | 2938 | variables are not automatically expanded. We also prepend the |
2939 | ".;" to the path to match normal NT path search semantics */ | |
9dfe12ae | 2940 | |
c69ba469 | 2941 | #define EXPAND_BUFFER_SIZE 32767 |
9dfe12ae | 2942 | |
2b2212d1 | 2943 | wapath_val = (TCHAR *) alloca (EXPAND_BUFFER_SIZE); |
c69ba469 | 2944 | |
3b18b370 | 2945 | wapath_val [0] = '.'; |
2946 | wapath_val [1] = ';'; | |
1fac938e | 2947 | |
c69ba469 | 2948 | DWORD res = ExpandEnvironmentStrings |
3b18b370 | 2949 | (wpath_val, &wapath_val[2], EXPAND_BUFFER_SIZE - 2); |
2950 | ||
2951 | if (!res) wapath_val [0] = _T('\0'); | |
2952 | ||
2b2212d1 | 2953 | apath_val = (char *) alloca (EXPAND_BUFFER_SIZE); |
3b18b370 | 2954 | |
f60cc57d | 2955 | WS2SC (apath_val, wapath_val, EXPAND_BUFFER_SIZE); |
c69ba469 | 2956 | |
3b18b370 | 2957 | #else |
92925254 | 2958 | const char *path_val = getenv ("PATH"); |
3897a124 | 2959 | |
894192a2 | 2960 | /* If PATH is not defined, proceed with __gnat_locate_exec anyway, so we can |
2961 | find files that contain directory names. */ | |
2962 | ||
2963 | if (path_val == NULL) path_val = ""; | |
5703e222 | 2964 | apath_val = (char *) alloca (strlen (path_val) + 1); |
1fac938e | 2965 | strcpy (apath_val, path_val); |
3b18b370 | 2966 | #endif |
894192a2 | 2967 | |
2968 | return __gnat_locate_exec (exec_name, apath_val); | |
1fac938e | 2969 | } |
2970 | ||
3897a124 | 2971 | /* Dummy functions for Osint import for non-VMS systems. |
2972 | ??? To be removed. */ | |
1fac938e | 2973 | |
2974 | int | |
24d7b9d6 | 2975 | __gnat_to_canonical_file_list_init (char *dirspec ATTRIBUTE_UNUSED, |
2976 | int onlydirs ATTRIBUTE_UNUSED) | |
1fac938e | 2977 | { |
2978 | return 0; | |
2979 | } | |
2980 | ||
2981 | char * | |
6f2c2693 | 2982 | __gnat_to_canonical_file_list_next (void) |
1fac938e | 2983 | { |
6b88f2fe | 2984 | static char empty[] = ""; |
4c4697b8 | 2985 | return empty; |
1fac938e | 2986 | } |
2987 | ||
2988 | void | |
6f2c2693 | 2989 | __gnat_to_canonical_file_list_free (void) |
1fac938e | 2990 | { |
2991 | } | |
2992 | ||
2993 | char * | |
9dfe12ae | 2994 | __gnat_to_canonical_dir_spec (char *dirspec, int prefixflag ATTRIBUTE_UNUSED) |
1fac938e | 2995 | { |
2996 | return dirspec; | |
2997 | } | |
2998 | ||
2999 | char * | |
9dfe12ae | 3000 | __gnat_to_canonical_file_spec (char *filespec) |
1fac938e | 3001 | { |
3002 | return filespec; | |
3003 | } | |
3004 | ||
3005 | char * | |
9dfe12ae | 3006 | __gnat_to_canonical_path_spec (char *pathspec) |
1fac938e | 3007 | { |
3008 | return pathspec; | |
3009 | } | |
3010 | ||
3011 | char * | |
9dfe12ae | 3012 | __gnat_to_host_dir_spec (char *dirspec, int prefixflag ATTRIBUTE_UNUSED) |
1fac938e | 3013 | { |
3014 | return dirspec; | |
3015 | } | |
3016 | ||
3017 | char * | |
9dfe12ae | 3018 | __gnat_to_host_file_spec (char *filespec) |
1fac938e | 3019 | { |
3020 | return filespec; | |
3021 | } | |
3022 | ||
3023 | void | |
6f2c2693 | 3024 | __gnat_adjust_os_resource_limits (void) |
1fac938e | 3025 | { |
3026 | } | |
3027 | ||
1fac938e | 3028 | #if defined (__mips_vxworks) |
9dfe12ae | 3029 | int |
24d7b9d6 | 3030 | _flush_cache (void) |
1fac938e | 3031 | { |
3032 | CACHE_USER_FLUSH (0, ENTIRE_CACHE); | |
3033 | } | |
3034 | #endif | |
3035 | ||
f15731c4 | 3036 | #if defined (_WIN32) |
3037 | int __gnat_argument_needs_quote = 1; | |
3038 | #else | |
3039 | int __gnat_argument_needs_quote = 0; | |
3040 | #endif | |
9dfe12ae | 3041 | |
3042 | /* This option is used to enable/disable object files handling from the | |
3043 | binder file by the GNAT Project module. For example, this is disabled on | |
e0f42093 | 3044 | Windows (prior to GCC 3.4) as it is already done by the mdll module. |
3045 | Stating with GCC 3.4 the shared libraries are not based on mdll | |
3046 | anymore as it uses the GCC's -shared option */ | |
3047 | #if defined (_WIN32) \ | |
3048 | && ((__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 4))) | |
9dfe12ae | 3049 | int __gnat_prj_add_obj_files = 0; |
3050 | #else | |
3051 | int __gnat_prj_add_obj_files = 1; | |
3052 | #endif | |
3053 | ||
3054 | /* char used as prefix/suffix for environment variables */ | |
3055 | #if defined (_WIN32) | |
3056 | char __gnat_environment_char = '%'; | |
3057 | #else | |
3058 | char __gnat_environment_char = '$'; | |
3059 | #endif | |
3060 | ||
3061 | /* This functions copy the file attributes from a source file to a | |
3062 | destination file. | |
3063 | ||
3064 | mode = 0 : In this mode copy only the file time stamps (last access and | |
3065 | last modification time stamps). | |
3066 | ||
3067 | mode = 1 : In this mode, time stamps and read/write/execute attributes are | |
3068 | copied. | |
3069 | ||
7ac908ab | 3070 | mode = 2 : In this mode, only read/write/execute attributes are copied |
3071 | ||
9dfe12ae | 3072 | Returns 0 if operation was successful and -1 in case of error. */ |
3073 | ||
3074 | int | |
75f7f24d | 3075 | __gnat_copy_attribs (char *from ATTRIBUTE_UNUSED, char *to ATTRIBUTE_UNUSED, |
3076 | int mode ATTRIBUTE_UNUSED) | |
9dfe12ae | 3077 | { |
b85b7cb2 | 3078 | #if (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) |
9dfe12ae | 3079 | return -1; |
6a85c251 | 3080 | |
b85b7cb2 | 3081 | #elif defined (_WIN32) |
6a85c251 | 3082 | TCHAR wfrom [GNAT_MAX_PATH_LEN + 2]; |
3083 | TCHAR wto [GNAT_MAX_PATH_LEN + 2]; | |
3084 | BOOL res; | |
3085 | FILETIME fct, flat, flwt; | |
3086 | HANDLE hfrom, hto; | |
3087 | ||
3088 | S2WSC (wfrom, from, GNAT_MAX_PATH_LEN + 2); | |
3089 | S2WSC (wto, to, GNAT_MAX_PATH_LEN + 2); | |
3090 | ||
7ac908ab | 3091 | /* Do we need to copy the timestamp ? */ |
6a85c251 | 3092 | |
7ac908ab | 3093 | if (mode != 2) { |
3094 | /* retrieve from times */ | |
6a85c251 | 3095 | |
7ac908ab | 3096 | hfrom = CreateFile |
3097 | (wfrom, GENERIC_READ, 0, NULL, OPEN_EXISTING, | |
3098 | FILE_ATTRIBUTE_NORMAL, NULL); | |
6a85c251 | 3099 | |
7ac908ab | 3100 | if (hfrom == INVALID_HANDLE_VALUE) |
3101 | return -1; | |
6a85c251 | 3102 | |
7ac908ab | 3103 | res = GetFileTime (hfrom, &fct, &flat, &flwt); |
6a85c251 | 3104 | |
7ac908ab | 3105 | CloseHandle (hfrom); |
6a85c251 | 3106 | |
7ac908ab | 3107 | if (res == 0) |
3108 | return -1; | |
6a85c251 | 3109 | |
7ac908ab | 3110 | /* retrieve from times */ |
6a85c251 | 3111 | |
7ac908ab | 3112 | hto = CreateFile |
3113 | (wto, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, | |
3114 | FILE_ATTRIBUTE_NORMAL, NULL); | |
6a85c251 | 3115 | |
7ac908ab | 3116 | if (hto == INVALID_HANDLE_VALUE) |
3117 | return -1; | |
6a85c251 | 3118 | |
7ac908ab | 3119 | res = SetFileTime (hto, NULL, &flat, &flwt); |
6a85c251 | 3120 | |
7ac908ab | 3121 | CloseHandle (hto); |
6a85c251 | 3122 | |
7ac908ab | 3123 | if (res == 0) |
3124 | return -1; | |
3125 | } | |
3126 | ||
3127 | /* Do we need to copy the permissions ? */ | |
6a85c251 | 3128 | /* Set file attributes in full mode. */ |
3129 | ||
7ac908ab | 3130 | if (mode != 0) |
6a85c251 | 3131 | { |
3132 | DWORD attribs = GetFileAttributes (wfrom); | |
3133 | ||
3134 | if (attribs == INVALID_FILE_ATTRIBUTES) | |
3135 | return -1; | |
3136 | ||
3137 | res = SetFileAttributes (wto, attribs); | |
3138 | if (res == 0) | |
3139 | return -1; | |
3140 | } | |
3141 | ||
3142 | return 0; | |
3143 | ||
9dfe12ae | 3144 | #else |
8cb516d7 | 3145 | GNAT_STRUCT_STAT fbuf; |
9dfe12ae | 3146 | struct utimbuf tbuf; |
3147 | ||
7ac908ab | 3148 | if (GNAT_STAT (from, &fbuf) == -1) { |
3149 | return -1; | |
3150 | } | |
9dfe12ae | 3151 | |
7ac908ab | 3152 | /* Do we need to copy timestamp ? */ |
3153 | if (mode != 2) { | |
3154 | tbuf.actime = fbuf.st_atime; | |
3155 | tbuf.modtime = fbuf.st_mtime; | |
9dfe12ae | 3156 | |
7ac908ab | 3157 | if (utime (to, &tbuf) == -1) { |
3158 | return -1; | |
3159 | } | |
3160 | } | |
9dfe12ae | 3161 | |
7ac908ab | 3162 | /* Do we need to copy file permissions ? */ |
3163 | if (mode != 0 && (chmod (to, fbuf.st_mode) == -1)) { | |
9dfe12ae | 3164 | return -1; |
7ac908ab | 3165 | } |
9dfe12ae | 3166 | |
3167 | return 0; | |
3168 | #endif | |
3169 | } | |
3170 | ||
cf6d853e | 3171 | int |
3172 | __gnat_lseek (int fd, long offset, int whence) | |
3173 | { | |
3174 | return (int) lseek (fd, offset, whence); | |
3175 | } | |
0914a918 | 3176 | |
e2c62f37 | 3177 | /* This function returns the major version number of GCC being used. */ |
0914a918 | 3178 | int |
3179 | get_gcc_version (void) | |
3180 | { | |
e2c62f37 | 3181 | #ifdef IN_RTS |
3182 | return __GNUC__; | |
3183 | #else | |
3184 | return (int) (version_string[0] - '0'); | |
3185 | #endif | |
0914a918 | 3186 | } |
6d9c3443 | 3187 | |
b21edad9 | 3188 | /* |
3189 | * Set Close_On_Exec as indicated. | |
3190 | * Note: this is used for both GNAT.OS_Lib and GNAT.Sockets. | |
3191 | */ | |
3192 | ||
6d9c3443 | 3193 | int |
de10c095 | 3194 | __gnat_set_close_on_exec (int fd ATTRIBUTE_UNUSED, |
0e9e8338 | 3195 | int close_on_exec_p ATTRIBUTE_UNUSED) |
6d9c3443 | 3196 | { |
3197 | #if defined (F_GETFD) && defined (FD_CLOEXEC) && ! defined (__vxworks) | |
3198 | int flags = fcntl (fd, F_GETFD, 0); | |
3199 | if (flags < 0) | |
3200 | return flags; | |
3201 | if (close_on_exec_p) | |
3202 | flags |= FD_CLOEXEC; | |
3203 | else | |
3204 | flags &= ~FD_CLOEXEC; | |
6fdfe796 | 3205 | return fcntl (fd, F_SETFD, flags); |
07f34887 | 3206 | #elif defined(_WIN32) |
3207 | HANDLE h = (HANDLE) _get_osfhandle (fd); | |
3208 | if (h == (HANDLE) -1) | |
3209 | return -1; | |
3210 | if (close_on_exec_p) | |
3211 | return ! SetHandleInformation (h, HANDLE_FLAG_INHERIT, 0); | |
bcf0a1b1 | 3212 | return ! SetHandleInformation (h, HANDLE_FLAG_INHERIT, |
07f34887 | 3213 | HANDLE_FLAG_INHERIT); |
6d9c3443 | 3214 | #else |
07f34887 | 3215 | /* TODO: Unimplemented. */ |
6d9c3443 | 3216 | return -1; |
6d9c3443 | 3217 | #endif |
3218 | } | |
fb31b465 | 3219 | |
3220 | /* Indicates if platforms supports automatic initialization through the | |
3221 | constructor mechanism */ | |
3222 | int | |
c88e6a4f | 3223 | __gnat_binder_supports_auto_init (void) |
fb31b465 | 3224 | { |
3897a124 | 3225 | return 1; |
fb31b465 | 3226 | } |
3227 | ||
3228 | /* Indicates that Stand-Alone Libraries are automatically initialized through | |
3229 | the constructor mechanism */ | |
3230 | int | |
c88e6a4f | 3231 | __gnat_sals_init_using_constructors (void) |
fb31b465 | 3232 | { |
3897a124 | 3233 | #if defined (__vxworks) || defined (__Lynx__) |
fb31b465 | 3234 | return 0; |
3235 | #else | |
3236 | return 1; | |
3237 | #endif | |
3238 | } | |
e2a33c18 | 3239 | |
270ee9c5 | 3240 | #if defined (__linux__) || defined (__ANDROID__) |
a0d9619f | 3241 | /* There is no function in the glibc to retrieve the LWP of the current |
3242 | thread. We need to do a system call in order to retrieve this | |
3243 | information. */ | |
3244 | #include <sys/syscall.h> | |
24d7b9d6 | 3245 | void * |
3246 | __gnat_lwp_self (void) | |
12e8797f | 3247 | { |
a0d9619f | 3248 | return (void *) syscall (__NR_gettid); |
3249 | } | |
270ee9c5 | 3250 | #endif |
40d4441d | 3251 | |
cc28d5c8 | 3252 | #if defined (__APPLE__) |
5065260a | 3253 | # if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1060 |
3254 | # include <mach/thread_info.h> | |
3255 | # include <mach/mach_init.h> | |
3256 | # include <mach/thread_act.h> | |
3257 | # else | |
3258 | # include <pthread.h> | |
3259 | # endif | |
cc28d5c8 | 3260 | |
3261 | /* System-wide thread identifier. Note it could be truncated on 32 bit | |
3262 | hosts. | |
3263 | Previously was: pthread_mach_thread_np (pthread_self ()). */ | |
3264 | void * | |
3265 | __gnat_lwp_self (void) | |
3266 | { | |
5065260a | 3267 | #if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1060 |
cc28d5c8 | 3268 | thread_identifier_info_data_t data; |
3269 | mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT; | |
3270 | kern_return_t kret; | |
3271 | ||
3272 | kret = thread_info (mach_thread_self (), THREAD_IDENTIFIER_INFO, | |
3273 | (thread_info_t) &data, &count); | |
3274 | if (kret == KERN_SUCCESS) | |
3275 | return (void *)(uintptr_t)data.thread_id; | |
3276 | else | |
3277 | return 0; | |
5065260a | 3278 | #else |
3279 | return (void *)pthread_mach_thread_np (pthread_self ()); | |
3280 | #endif | |
cc28d5c8 | 3281 | } |
3282 | #endif | |
3283 | ||
270ee9c5 | 3284 | #if defined (__linux__) |
40d4441d | 3285 | #include <sched.h> |
3286 | ||
38846e90 | 3287 | /* glibc versions earlier than 2.7 do not define the routines to handle |
3288 | dynamically allocated CPU sets. For these targets, we use the static | |
3289 | versions. */ | |
3290 | ||
3291 | #ifdef CPU_ALLOC | |
3292 | ||
3293 | /* Dynamic cpu sets */ | |
3294 | ||
24d7b9d6 | 3295 | cpu_set_t * |
3296 | __gnat_cpu_alloc (size_t count) | |
40d4441d | 3297 | { |
91965b95 | 3298 | return CPU_ALLOC (count); |
40d4441d | 3299 | } |
3300 | ||
24d7b9d6 | 3301 | size_t |
3302 | __gnat_cpu_alloc_size (size_t count) | |
91965b95 | 3303 | { |
3304 | return CPU_ALLOC_SIZE (count); | |
3305 | } | |
3306 | ||
24d7b9d6 | 3307 | void |
3308 | __gnat_cpu_free (cpu_set_t *set) | |
91965b95 | 3309 | { |
3310 | CPU_FREE (set); | |
3311 | } | |
3312 | ||
24d7b9d6 | 3313 | void |
3314 | __gnat_cpu_zero (size_t count, cpu_set_t *set) | |
91965b95 | 3315 | { |
3316 | CPU_ZERO_S (count, set); | |
3317 | } | |
3318 | ||
24d7b9d6 | 3319 | void |
3320 | __gnat_cpu_set (int cpu, size_t count, cpu_set_t *set) | |
40d4441d | 3321 | { |
3322 | /* Ada handles CPU numbers starting from 1, while C identifies the first | |
3323 | CPU by a 0, so we need to adjust. */ | |
91965b95 | 3324 | CPU_SET_S (cpu - 1, count, set); |
40d4441d | 3325 | } |
38846e90 | 3326 | |
89da8724 | 3327 | #else /* !CPU_ALLOC */ |
38846e90 | 3328 | |
3329 | /* Static cpu sets */ | |
3330 | ||
24d7b9d6 | 3331 | cpu_set_t * |
3332 | __gnat_cpu_alloc (size_t count ATTRIBUTE_UNUSED) | |
38846e90 | 3333 | { |
3334 | return (cpu_set_t *) xmalloc (sizeof (cpu_set_t)); | |
3335 | } | |
3336 | ||
24d7b9d6 | 3337 | size_t |
3338 | __gnat_cpu_alloc_size (size_t count ATTRIBUTE_UNUSED) | |
38846e90 | 3339 | { |
3340 | return sizeof (cpu_set_t); | |
3341 | } | |
3342 | ||
24d7b9d6 | 3343 | void |
3344 | __gnat_cpu_free (cpu_set_t *set) | |
38846e90 | 3345 | { |
3346 | free (set); | |
3347 | } | |
3348 | ||
24d7b9d6 | 3349 | void |
3350 | __gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, cpu_set_t *set) | |
38846e90 | 3351 | { |
3352 | CPU_ZERO (set); | |
3353 | } | |
3354 | ||
24d7b9d6 | 3355 | void |
3356 | __gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, cpu_set_t *set) | |
38846e90 | 3357 | { |
3358 | /* Ada handles CPU numbers starting from 1, while C identifies the first | |
3359 | CPU by a 0, so we need to adjust. */ | |
3360 | CPU_SET (cpu - 1, set); | |
3361 | } | |
89da8724 | 3362 | #endif /* !CPU_ALLOC */ |
3d230452 | 3363 | #endif /* __linux__ */ |
89da8724 | 3364 | |
3365 | /* Return the load address of the executable, or 0 if not known. In the | |
3366 | specific case of error, (void *)-1 can be returned. Beware: this unit may | |
3367 | be in a shared library. As low-level units are needed, we allow #include | |
3368 | here. */ | |
3369 | ||
3370 | #if defined (__APPLE__) | |
3371 | #include <mach-o/dyld.h> | |
a0d9619f | 3372 | #endif |
89da8724 | 3373 | |
3374 | const void * | |
3375 | __gnat_get_executable_load_address (void) | |
3376 | { | |
3377 | #if defined (__APPLE__) | |
3378 | return _dyld_get_image_header (0); | |
3379 | ||
94e053cd | 3380 | #elif 0 && defined (__linux__) |
3381 | /* Currently disabled as it needs at least -ldl. */ | |
89da8724 | 3382 | struct link_map *map = _r_debug.r_map; |
3383 | ||
3384 | return (const void *)map->l_addr; | |
3385 | ||
89da8724 | 3386 | #else |
3387 | return NULL; | |
63b63ca2 | 3388 | #endif |
89da8724 | 3389 | } |
becb63f5 | 3390 | |
f3c46219 | 3391 | void |
3392 | __gnat_kill (int pid, int sig, int close ATTRIBUTE_UNUSED) | |
3393 | { | |
3394 | #if defined(_WIN32) | |
3395 | HANDLE h = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pid); | |
3396 | if (h == NULL) | |
3397 | return; | |
3398 | if (sig == 9) | |
3399 | { | |
944f4d7a | 3400 | TerminateProcess (h, 1); |
f3c46219 | 3401 | } |
3402 | else if (sig == SIGINT) | |
3403 | GenerateConsoleCtrlEvent (CTRL_C_EVENT, pid); | |
3404 | else if (sig == SIGBREAK) | |
3405 | GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid); | |
3406 | /* ??? The last two alternatives don't really work. SIGBREAK requires setting | |
3407 | up process groups at start time which we don't do; treating SIGINT is just | |
3408 | not possible apparently. So we really only support signal 9. Fortunately | |
3409 | that's all we use in GNAT.Expect */ | |
3410 | ||
3411 | CloseHandle (h); | |
3412 | #elif defined (__vxworks) | |
3413 | /* Not implemented */ | |
3414 | #else | |
3415 | kill (pid, sig); | |
3416 | #endif | |
3417 | } | |
3418 | ||
1a461737 | 3419 | void __gnat_killprocesstree (int pid, int sig_num) |
3420 | { | |
3421 | #if defined(_WIN32) | |
1a461737 | 3422 | PROCESSENTRY32 pe; |
3423 | ||
3424 | memset(&pe, 0, sizeof(PROCESSENTRY32)); | |
3425 | pe.dwSize = sizeof(PROCESSENTRY32); | |
3426 | ||
3427 | HANDLE hSnap = CreateToolhelp32Snapshot (TH32CS_SNAPPROCESS, 0); | |
3428 | ||
3429 | /* cannot take snapshot, just kill the parent process */ | |
3430 | ||
3431 | if (hSnap == INVALID_HANDLE_VALUE) | |
3432 | { | |
3433 | __gnat_kill (pid, sig_num, 1); | |
3434 | return; | |
3435 | } | |
3436 | ||
3437 | if (Process32First(hSnap, &pe)) | |
3438 | { | |
3439 | BOOL bContinue = TRUE; | |
3440 | ||
3441 | /* kill child processes first */ | |
3442 | ||
3443 | while (bContinue) | |
3444 | { | |
22fe687d | 3445 | if (pe.th32ParentProcessID == (DWORD)pid) |
1a461737 | 3446 | __gnat_killprocesstree (pe.th32ProcessID, sig_num); |
3447 | ||
3448 | bContinue = Process32Next (hSnap, &pe); | |
3449 | } | |
3450 | } | |
3451 | ||
3452 | CloseHandle (hSnap); | |
3453 | ||
3454 | /* kill process */ | |
3455 | ||
3456 | __gnat_kill (pid, sig_num, 1); | |
747426db | 3457 | |
3458 | #elif defined (__vxworks) | |
3459 | /* not implemented */ | |
3460 | ||
3461 | #elif defined (__linux__) | |
1a461737 | 3462 | DIR *dir; |
3463 | struct dirent *d; | |
3464 | ||
3465 | /* read all processes' pid and ppid */ | |
3466 | ||
3467 | dir = opendir ("/proc"); | |
3468 | ||
3469 | /* cannot open proc, just kill the parent process */ | |
3470 | ||
3471 | if (!dir) | |
3472 | { | |
3473 | __gnat_kill (pid, sig_num, 1); | |
3474 | return; | |
3475 | } | |
3476 | ||
3477 | /* kill child processes first */ | |
3478 | ||
f19463de | 3479 | while ((d = readdir (dir)) != NULL) |
1a461737 | 3480 | { |
3481 | if ((d->d_type & DT_DIR) == DT_DIR) | |
3482 | { | |
2ed67d5f | 3483 | char statfile[64]; |
1a461737 | 3484 | int _pid, _ppid; |
3485 | ||
3486 | /* read /proc/<PID>/stat */ | |
3487 | ||
3e63b80d | 3488 | if (strlen (d->d_name) >= sizeof (statfile) - strlen ("/proc//stat")) |
2ed67d5f | 3489 | continue; |
3490 | strcpy (statfile, "/proc/"); | |
3491 | strcat (statfile, d->d_name); | |
3492 | strcat (statfile, "/stat"); | |
1a461737 | 3493 | |
3494 | FILE *fd = fopen (statfile, "r"); | |
3495 | ||
3496 | if (fd) | |
3497 | { | |
3498 | const int match = fscanf (fd, "%d %*s %*s %d", &_pid, &_ppid); | |
3499 | fclose (fd); | |
3500 | ||
3501 | if (match == 2 && _ppid == pid) | |
3502 | __gnat_killprocesstree (_pid, sig_num); | |
3503 | } | |
3504 | } | |
3505 | } | |
3506 | ||
3507 | closedir (dir); | |
3508 | ||
3509 | /* kill process */ | |
3510 | ||
747426db | 3511 | __gnat_kill (pid, sig_num, 1); |
3512 | #else | |
1a461737 | 3513 | __gnat_kill (pid, sig_num, 1); |
3514 | #endif | |
3515 | /* Note on Solaris it is possible to read /proc/<PID>/status. | |
3516 | The 5th and 6th words are the pid and the 7th and 8th the ppid. | |
3517 | See: /usr/include/sys/procfs.h (struct pstatus). | |
3518 | */ | |
3519 | } | |
3520 | ||
becb63f5 | 3521 | #ifdef __cplusplus |
3522 | } | |
3523 | #endif |