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Commit | Line | Data |
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4050c0df JH |
1 | #ifndef GIT_COMPAT_UTIL_H |
2 | #define GIT_COMPAT_UTIL_H | |
3 | ||
b97e9116 MW |
4 | #define _FILE_OFFSET_BITS 64 |
5 | ||
8f1d2e6f | 6 | #ifndef FLEX_ARRAY |
8e973991 JH |
7 | /* |
8 | * See if our compiler is known to support flexible array members. | |
9 | */ | |
203ee91f | 10 | #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && (!defined(__SUNPRO_C) || (__SUNPRO_C > 0x580)) |
8e973991 JH |
11 | # define FLEX_ARRAY /* empty */ |
12 | #elif defined(__GNUC__) | |
13 | # if (__GNUC__ >= 3) | |
14 | # define FLEX_ARRAY /* empty */ | |
15 | # else | |
16 | # define FLEX_ARRAY 0 /* older GNU extension */ | |
17 | # endif | |
18 | #endif | |
19 | ||
20 | /* | |
21 | * Otherwise, default to safer but a bit wasteful traditional style | |
22 | */ | |
23 | #ifndef FLEX_ARRAY | |
24 | # define FLEX_ARRAY 1 | |
8f1d2e6f JH |
25 | #endif |
26 | #endif | |
27 | ||
b4f2a6ac | 28 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) |
f630cfda | 29 | #define bitsizeof(x) (CHAR_BIT * sizeof(x)) |
b4f2a6ac | 30 | |
c03c8315 EFL |
31 | #define maximum_signed_value_of_type(a) \ |
32 | (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a))) | |
33 | ||
1368f650 JN |
34 | #define maximum_unsigned_value_of_type(a) \ |
35 | (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a))) | |
36 | ||
c03c8315 EFL |
37 | /* |
38 | * Signed integer overflow is undefined in C, so here's a helper macro | |
39 | * to detect if the sum of two integers will overflow. | |
40 | * | |
41 | * Requires: a >= 0, typeof(a) equals typeof(b) | |
42 | */ | |
43 | #define signed_add_overflows(a, b) \ | |
44 | ((b) > maximum_signed_value_of_type(a) - (a)) | |
45 | ||
1368f650 JN |
46 | #define unsigned_add_overflows(a, b) \ |
47 | ((b) > maximum_unsigned_value_of_type(a) - (a)) | |
48 | ||
8723f216 NP |
49 | #ifdef __GNUC__ |
50 | #define TYPEOF(x) (__typeof__(x)) | |
51 | #else | |
52 | #define TYPEOF(x) | |
53 | #endif | |
54 | ||
f630cfda | 55 | #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits)))) |
db7244bd | 56 | #define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */ |
8723f216 | 57 | |
98cb6f30 PH |
58 | #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) |
59 | ||
cf606e3d AW |
60 | /* Approximation of the length of the decimal representation of this type. */ |
61 | #define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) | |
62 | ||
4cb18a49 BC |
63 | #if defined(__sun__) |
64 | /* | |
65 | * On Solaris, when _XOPEN_EXTENDED is set, its header file | |
66 | * forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE | |
67 | * setting to say we are XPG5 or XPG6. Also on Solaris, | |
68 | * XPG6 programs must be compiled with a c99 compiler, while | |
69 | * non XPG6 programs must be compiled with a pre-c99 compiler. | |
70 | */ | |
71 | # if __STDC_VERSION__ - 0 >= 199901L | |
72 | # define _XOPEN_SOURCE 600 | |
73 | # else | |
74 | # define _XOPEN_SOURCE 500 | |
75 | # endif | |
6555b196 | 76 | #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \ |
6c109904 | 77 | !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \ |
3a0a3a89 RJ |
78 | !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__) && \ |
79 | !defined(__CYGWIN__) | |
85023577 JH |
80 | #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */ |
81 | #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */ | |
c902c9a6 | 82 | #endif |
fb952206 JR |
83 | #define _ALL_SOURCE 1 |
84 | #define _GNU_SOURCE 1 | |
85 | #define _BSD_SOURCE 1 | |
f978a99f | 86 | #define _DEFAULT_SOURCE 1 |
9a695fbf | 87 | #define _NETBSD_SOURCE 1 |
9398b859 | 88 | #define _SGI_SOURCE 1 |
85023577 | 89 | |
380395d0 | 90 | #if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */ |
8453c125 | 91 | # if defined (_MSC_VER) && !defined(_WIN32_WINNT) |
41f29991 RJ |
92 | # define _WIN32_WINNT 0x0502 |
93 | # endif | |
435bdf8c MSO |
94 | #define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */ |
95 | #include <winsock2.h> | |
96 | #include <windows.h> | |
380395d0 | 97 | #define GIT_WINDOWS_NATIVE |
435bdf8c MSO |
98 | #endif |
99 | ||
4050c0df JH |
100 | #include <unistd.h> |
101 | #include <stdio.h> | |
102 | #include <sys/stat.h> | |
103 | #include <fcntl.h> | |
104 | #include <stddef.h> | |
105 | #include <stdlib.h> | |
106 | #include <stdarg.h> | |
107 | #include <string.h> | |
b3e103da | 108 | #ifdef HAVE_STRINGS_H |
6c109904 JS |
109 | #include <strings.h> /* for strcasecmp() */ |
110 | #endif | |
4050c0df JH |
111 | #include <errno.h> |
112 | #include <limits.h> | |
b2d05e06 | 113 | #ifdef NEEDS_SYS_PARAM_H |
4050c0df | 114 | #include <sys/param.h> |
6ede7205 | 115 | #endif |
4050c0df JH |
116 | #include <sys/types.h> |
117 | #include <dirent.h> | |
85023577 JH |
118 | #include <sys/time.h> |
119 | #include <time.h> | |
120 | #include <signal.h> | |
f4626df5 JS |
121 | #include <assert.h> |
122 | #include <regex.h> | |
123 | #include <utime.h> | |
088d8802 | 124 | #include <syslog.h> |
2844923d | 125 | #ifndef NO_SYS_POLL_H |
fdc12114 | 126 | #include <sys/poll.h> |
2844923d MD |
127 | #else |
128 | #include <poll.h> | |
129 | #endif | |
2f0aaaf9 | 130 | |
cfc755d3 VR |
131 | #if defined(__MINGW32__) |
132 | /* pull in Windows compatibility stuff */ | |
133 | #include "compat/mingw.h" | |
134 | #elif defined(_MSC_VER) | |
135 | #include "compat/msvc.h" | |
136 | #else | |
f4626df5 | 137 | #include <sys/wait.h> |
ebae9ff9 | 138 | #include <sys/resource.h> |
85023577 | 139 | #include <sys/socket.h> |
80bbe72b | 140 | #include <sys/ioctl.h> |
eb80042c | 141 | #include <termios.h> |
2600973f | 142 | #ifndef NO_SYS_SELECT_H |
80bbe72b | 143 | #include <sys/select.h> |
2600973f | 144 | #endif |
85023577 JH |
145 | #include <netinet/in.h> |
146 | #include <netinet/tcp.h> | |
147 | #include <arpa/inet.h> | |
148 | #include <netdb.h> | |
149 | #include <pwd.h> | |
e2770979 | 150 | #include <sys/un.h> |
2844923d | 151 | #ifndef NO_INTTYPES_H |
007e2ba6 | 152 | #include <inttypes.h> |
2844923d MD |
153 | #else |
154 | #include <stdint.h> | |
155 | #endif | |
6c109904 JS |
156 | #ifdef NO_INTPTR_T |
157 | /* | |
158 | * On I16LP32, ILP32 and LP64 "long" is the save bet, however | |
159 | * on LLP86, IL33LLP64 and P64 it needs to be "long long", | |
160 | * while on IP16 and IP16L32 it is "int" (resp. "short") | |
161 | * Size needs to match (or exceed) 'sizeof(void *)'. | |
162 | * We can't take "long long" here as not everybody has it. | |
163 | */ | |
164 | typedef long intptr_t; | |
165 | typedef unsigned long uintptr_t; | |
166 | #endif | |
41b20017 RJ |
167 | #if defined(__CYGWIN__) |
168 | #undef _XOPEN_SOURCE | |
169 | #include <grp.h> | |
170 | #define _XOPEN_SOURCE 600 | |
171 | #else | |
fb952206 | 172 | #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */ |
85023577 | 173 | #include <grp.h> |
fb952206 | 174 | #define _ALL_SOURCE 1 |
41b20017 | 175 | #endif |
d75f8e61 | 176 | #endif |
85023577 | 177 | |
76759c7d TB |
178 | /* used on Mac OS X */ |
179 | #ifdef PRECOMPOSE_UNICODE | |
180 | #include "compat/precompose_utf8.h" | |
181 | #else | |
182 | #define precompose_str(in,i_nfd2nfc) | |
183 | #define precompose_argv(c,v) | |
184 | #define probe_utf8_pathname_composition(a,b) | |
185 | #endif | |
186 | ||
0539ecfd JS |
187 | #ifdef MKDIR_WO_TRAILING_SLASH |
188 | #define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b)) | |
189 | extern int compat_mkdir_wo_trailing_slash(const char*, mode_t); | |
190 | #endif | |
191 | ||
7f9e848c JS |
192 | #ifdef NO_STRUCT_ITIMERVAL |
193 | struct itimerval { | |
194 | struct timeval it_interval; | |
195 | struct timeval it_value; | |
981ff520 | 196 | }; |
7f9e848c JS |
197 | #endif |
198 | ||
199 | #ifdef NO_SETITIMER | |
200 | #define setitimer(which,value,ovalue) | |
201 | #endif | |
202 | ||
e1c06886 DA |
203 | #ifndef NO_LIBGEN_H |
204 | #include <libgen.h> | |
205 | #else | |
206 | #define basename gitbasename | |
207 | extern char *gitbasename(char *); | |
208 | #endif | |
209 | ||
85023577 JH |
210 | #ifndef NO_ICONV |
211 | #include <iconv.h> | |
212 | #endif | |
4050c0df | 213 | |
684ec6c6 | 214 | #ifndef NO_OPENSSL |
b195aa00 ES |
215 | #define __AVAILABILITY_MACROS_USES_AVAILABILITY 0 |
216 | #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6 | |
684ec6c6 RS |
217 | #include <openssl/ssl.h> |
218 | #include <openssl/err.h> | |
b195aa00 ES |
219 | #undef MAC_OS_X_VERSION_MIN_REQUIRED |
220 | #undef __AVAILABILITY_MACROS_USES_AVAILABILITY | |
88e01181 RH |
221 | #ifdef NO_HMAC_CTX_CLEANUP |
222 | #define HMAC_CTX_cleanup HMAC_cleanup | |
223 | #endif | |
684ec6c6 RS |
224 | #endif |
225 | ||
3b130ade DM |
226 | /* On most systems <netdb.h> would have given us this, but |
227 | * not on some systems (e.g. z/OS). | |
228 | */ | |
229 | #ifndef NI_MAXHOST | |
230 | #define NI_MAXHOST 1025 | |
231 | #endif | |
232 | ||
233 | #ifndef NI_MAXSERV | |
234 | #define NI_MAXSERV 32 | |
235 | #endif | |
236 | ||
d0c2449f JH |
237 | /* On most systems <limits.h> would have given us this, but |
238 | * not on some systems (e.g. GNU/Hurd). | |
239 | */ | |
240 | #ifndef PATH_MAX | |
241 | #define PATH_MAX 4096 | |
242 | #endif | |
243 | ||
c4001d92 SP |
244 | #ifndef PRIuMAX |
245 | #define PRIuMAX "llu" | |
246 | #endif | |
247 | ||
607bb3ff JS |
248 | #ifndef PRIu32 |
249 | #define PRIu32 "u" | |
250 | #endif | |
251 | ||
252 | #ifndef PRIx32 | |
253 | #define PRIx32 "x" | |
254 | #endif | |
255 | ||
5418d96d RJ |
256 | #ifndef PRIo32 |
257 | #define PRIo32 "o" | |
258 | #endif | |
259 | ||
80ba074f JS |
260 | #ifndef PATH_SEP |
261 | #define PATH_SEP ':' | |
262 | #endif | |
263 | ||
cb6a22c0 CW |
264 | #ifdef HAVE_PATHS_H |
265 | #include <paths.h> | |
266 | #endif | |
267 | #ifndef _PATH_DEFPATH | |
268 | #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin" | |
269 | #endif | |
270 | ||
23326d14 JS |
271 | #ifndef STRIP_EXTENSION |
272 | #define STRIP_EXTENSION "" | |
273 | #endif | |
274 | ||
25fe217b | 275 | #ifndef has_dos_drive_prefix |
bf728346 RS |
276 | static inline int git_has_dos_drive_prefix(const char *path) |
277 | { | |
278 | return 0; | |
279 | } | |
280 | #define has_dos_drive_prefix git_has_dos_drive_prefix | |
25fe217b JS |
281 | #endif |
282 | ||
bf728346 RS |
283 | #ifndef is_dir_sep |
284 | static inline int git_is_dir_sep(int c) | |
285 | { | |
286 | return c == '/'; | |
287 | } | |
288 | #define is_dir_sep git_is_dir_sep | |
c2369bdf CZ |
289 | #endif |
290 | ||
bf728346 RS |
291 | #ifndef offset_1st_component |
292 | static inline int git_offset_1st_component(const char *path) | |
293 | { | |
294 | return is_dir_sep(path[0]); | |
295 | } | |
296 | #define offset_1st_component git_offset_1st_component | |
25fe217b JS |
297 | #endif |
298 | ||
d1c69255 | 299 | #ifndef find_last_dir_sep |
bf728346 RS |
300 | static inline char *git_find_last_dir_sep(const char *path) |
301 | { | |
302 | return strrchr(path, '/'); | |
303 | } | |
304 | #define find_last_dir_sep git_find_last_dir_sep | |
d1c69255 TN |
305 | #endif |
306 | ||
e4ac953b | 307 | #if defined(__HP_cc) && (__HP_cc >= 61000) |
b6ab349b MR |
308 | #define NORETURN __attribute__((noreturn)) |
309 | #define NORETURN_PTR | |
6520c846 | 310 | #elif defined(__GNUC__) && !defined(NO_NORETURN) |
4050c0df | 311 | #define NORETURN __attribute__((__noreturn__)) |
18660bc9 | 312 | #define NORETURN_PTR __attribute__((__noreturn__)) |
aba7dea8 RJ |
313 | #elif defined(_MSC_VER) |
314 | #define NORETURN __declspec(noreturn) | |
315 | #define NORETURN_PTR | |
4050c0df JH |
316 | #else |
317 | #define NORETURN | |
18660bc9 | 318 | #define NORETURN_PTR |
8cd7ebc8 | 319 | #ifndef __GNUC__ |
4050c0df JH |
320 | #ifndef __attribute__ |
321 | #define __attribute__(x) | |
322 | #endif | |
323 | #endif | |
8cd7ebc8 | 324 | #endif |
4050c0df | 325 | |
9fe3edc4 RJ |
326 | /* The sentinel attribute is valid from gcc version 4.0 */ |
327 | #if defined(__GNUC__) && (__GNUC__ >= 4) | |
328 | #define LAST_ARG_MUST_BE_NULL __attribute__((sentinel)) | |
329 | #else | |
330 | #define LAST_ARG_MUST_BE_NULL | |
331 | #endif | |
332 | ||
51ea5519 NP |
333 | #include "compat/bswap.h" |
334 | ||
cebcab18 | 335 | #include "wildmatch.h" |
cebcab18 | 336 | |
9ccc0c08 RS |
337 | struct strbuf; |
338 | ||
4050c0df | 339 | /* General helper functions */ |
ebaa79f4 | 340 | extern void vreportf(const char *prefix, const char *err, va_list params); |
3bc4181f | 341 | extern void vwritef(int fd, const char *prefix, const char *err, va_list params); |
a4f3131c | 342 | extern NORETURN void usage(const char *err); |
64b1cb74 | 343 | extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2))); |
a4f3131c EFL |
344 | extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2))); |
345 | extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
4050c0df | 346 | extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
46efd2d9 | 347 | extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); |
4050c0df | 348 | |
f2be034c BG |
349 | #ifndef NO_OPENSSL |
350 | #ifdef APPLE_COMMON_CRYPTO | |
351 | #include "compat/apple-common-crypto.h" | |
352 | #else | |
353 | #include <openssl/evp.h> | |
354 | #include <openssl/hmac.h> | |
355 | #endif /* APPLE_COMMON_CRYPTO */ | |
356 | #include <openssl/x509v3.h> | |
357 | #endif /* NO_OPENSSL */ | |
358 | ||
e208f9cc JK |
359 | /* |
360 | * Let callers be aware of the constant return value; this can help | |
9798f7e5 MK |
361 | * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though, |
362 | * because some compilers may not support variadic macros. Since we're only | |
363 | * trying to help gcc, anyway, it's OK; other compilers will fall back to | |
364 | * using the function as usual. | |
e208f9cc | 365 | */ |
ff0a80af | 366 | #if defined(__GNUC__) |
87fe5df3 JK |
367 | static inline int const_error(void) |
368 | { | |
369 | return -1; | |
370 | } | |
371 | #define error(...) (error(__VA_ARGS__), const_error()) | |
e208f9cc JK |
372 | #endif |
373 | ||
18660bc9 | 374 | extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)); |
3bc4181f | 375 | extern void set_error_routine(void (*routine)(const char *err, va_list params)); |
c19a490e | 376 | extern void set_die_is_recursing_routine(int (*routine)(void)); |
39a3f5ea | 377 | |
95662315 | 378 | extern int starts_with(const char *str, const char *prefix); |
698a68be | 379 | |
cf4fff57 JK |
380 | /* |
381 | * If the string "str" begins with the string found in "prefix", return 1. | |
382 | * The "out" parameter is set to "str + strlen(prefix)" (i.e., to the point in | |
383 | * the string right after the prefix). | |
384 | * | |
385 | * Otherwise, return 0 and leave "out" untouched. | |
386 | * | |
387 | * Examples: | |
388 | * | |
389 | * [extract branch name, fail if not a branch] | |
390 | * if (!skip_prefix(ref, "refs/heads/", &branch) | |
391 | * return -1; | |
392 | * | |
393 | * [skip prefix if present, otherwise use whole string] | |
394 | * skip_prefix(name, "refs/heads/", &name); | |
395 | */ | |
396 | static inline int skip_prefix(const char *str, const char *prefix, | |
397 | const char **out) | |
fbca5837 | 398 | { |
ba399c46 | 399 | do { |
cf4fff57 JK |
400 | if (!*prefix) { |
401 | *out = str; | |
402 | return 1; | |
403 | } | |
ba399c46 | 404 | } while (*str++ == *prefix++); |
cf4fff57 | 405 | return 0; |
fbca5837 MV |
406 | } |
407 | ||
35480f0b JK |
408 | /* |
409 | * If buf ends with suffix, return 1 and subtract the length of the suffix | |
410 | * from *len. Otherwise, return 0 and leave *len untouched. | |
411 | */ | |
412 | static inline int strip_suffix_mem(const char *buf, size_t *len, | |
413 | const char *suffix) | |
414 | { | |
415 | size_t suflen = strlen(suffix); | |
416 | if (*len < suflen || memcmp(buf + (*len - suflen), suffix, suflen)) | |
417 | return 0; | |
418 | *len -= suflen; | |
419 | return 1; | |
420 | } | |
421 | ||
422 | /* | |
423 | * If str ends with suffix, return 1 and set *len to the size of the string | |
424 | * without the suffix. Otherwise, return 0 and set *len to the size of the | |
425 | * string. | |
426 | * | |
427 | * Note that we do _not_ NUL-terminate str to the new length. | |
428 | */ | |
429 | static inline int strip_suffix(const char *str, const char *suffix, size_t *len) | |
430 | { | |
431 | *len = strlen(str); | |
432 | return strip_suffix_mem(str, len, suffix); | |
433 | } | |
434 | ||
f52a35fd JK |
435 | static inline int ends_with(const char *str, const char *suffix) |
436 | { | |
437 | size_t len; | |
438 | return strip_suffix(str, suffix, &len); | |
439 | } | |
440 | ||
b130a72b | 441 | #if defined(NO_MMAP) || defined(USE_WIN32_MMAP) |
4050c0df JH |
442 | |
443 | #ifndef PROT_READ | |
444 | #define PROT_READ 1 | |
445 | #define PROT_WRITE 2 | |
446 | #define MAP_PRIVATE 1 | |
4050c0df JH |
447 | #endif |
448 | ||
d6779124 SP |
449 | #define mmap git_mmap |
450 | #define munmap git_munmap | |
451 | extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
452 | extern int git_munmap(void *start, size_t length); | |
4050c0df | 453 | |
b130a72b JL |
454 | #else /* NO_MMAP || USE_WIN32_MMAP */ |
455 | ||
456 | #include <sys/mman.h> | |
457 | ||
458 | #endif /* NO_MMAP || USE_WIN32_MMAP */ | |
459 | ||
460 | #ifdef NO_MMAP | |
461 | ||
5faaf246 | 462 | /* This value must be multiple of (pagesize * 2) */ |
8c82534d SP |
463 | #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024) |
464 | ||
4050c0df JH |
465 | #else /* NO_MMAP */ |
466 | ||
5faaf246 | 467 | /* This value must be multiple of (pagesize * 2) */ |
22bac0ea SP |
468 | #define DEFAULT_PACKED_GIT_WINDOW_SIZE \ |
469 | (sizeof(void*) >= 8 \ | |
470 | ? 1 * 1024 * 1024 * 1024 \ | |
471 | : 32 * 1024 * 1024) | |
4050c0df JH |
472 | |
473 | #endif /* NO_MMAP */ | |
474 | ||
fcf3a21a GV |
475 | #ifndef MAP_FAILED |
476 | #define MAP_FAILED ((void *)-1) | |
477 | #endif | |
478 | ||
fdb2a2a6 JH |
479 | #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT |
480 | #define on_disk_bytes(st) ((st).st_size) | |
481 | #else | |
482 | #define on_disk_bytes(st) ((st).st_blocks * 512) | |
483 | #endif | |
484 | ||
d543d9c0 DM |
485 | #ifdef NEEDS_MODE_TRANSLATION |
486 | #undef S_IFMT | |
487 | #undef S_IFREG | |
488 | #undef S_IFDIR | |
489 | #undef S_IFLNK | |
490 | #undef S_IFBLK | |
491 | #undef S_IFCHR | |
492 | #undef S_IFIFO | |
493 | #undef S_IFSOCK | |
494 | #define S_IFMT 0170000 | |
495 | #define S_IFREG 0100000 | |
496 | #define S_IFDIR 0040000 | |
497 | #define S_IFLNK 0120000 | |
498 | #define S_IFBLK 0060000 | |
499 | #define S_IFCHR 0020000 | |
500 | #define S_IFIFO 0010000 | |
501 | #define S_IFSOCK 0140000 | |
502 | #ifdef stat | |
503 | #undef stat | |
504 | #endif | |
505 | #define stat(path, buf) git_stat(path, buf) | |
506 | extern int git_stat(const char *, struct stat *); | |
507 | #ifdef fstat | |
508 | #undef fstat | |
509 | #endif | |
510 | #define fstat(fd, buf) git_fstat(fd, buf) | |
511 | extern int git_fstat(int, struct stat *); | |
512 | #ifdef lstat | |
513 | #undef lstat | |
514 | #endif | |
515 | #define lstat(path, buf) git_lstat(path, buf) | |
516 | extern int git_lstat(const char *, struct stat *); | |
517 | #endif | |
518 | ||
22bac0ea | 519 | #define DEFAULT_PACKED_GIT_LIMIT \ |
ecaebf4a | 520 | ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256)) |
8c82534d | 521 | |
6900679c SH |
522 | #ifdef NO_PREAD |
523 | #define pread git_pread | |
524 | extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset); | |
525 | #endif | |
14086b0a SP |
526 | /* |
527 | * Forward decl that will remind us if its twin in cache.h changes. | |
528 | * This function is used in compat/pread.c. But we can't include | |
529 | * cache.h there. | |
530 | */ | |
531 | extern ssize_t read_in_full(int fd, void *buf, size_t count); | |
6900679c | 532 | |
4050c0df JH |
533 | #ifdef NO_SETENV |
534 | #define setenv gitsetenv | |
535 | extern int gitsetenv(const char *, const char *, int); | |
536 | #endif | |
537 | ||
ca5bb5d5 SP |
538 | #ifdef NO_MKDTEMP |
539 | #define mkdtemp gitmkdtemp | |
540 | extern char *gitmkdtemp(char *); | |
541 | #endif | |
542 | ||
0620b39b DA |
543 | #ifdef NO_MKSTEMPS |
544 | #define mkstemps gitmkstemps | |
545 | extern int gitmkstemps(char *, int); | |
546 | #endif | |
547 | ||
731043fd JR |
548 | #ifdef NO_UNSETENV |
549 | #define unsetenv gitunsetenv | |
550 | extern void gitunsetenv(const char *); | |
551 | #endif | |
552 | ||
4050c0df JH |
553 | #ifdef NO_STRCASESTR |
554 | #define strcasestr gitstrcasestr | |
555 | extern char *gitstrcasestr(const char *haystack, const char *needle); | |
556 | #endif | |
557 | ||
817151e6 PE |
558 | #ifdef NO_STRLCPY |
559 | #define strlcpy gitstrlcpy | |
560 | extern size_t gitstrlcpy(char *, const char *, size_t); | |
561 | #endif | |
562 | ||
bc6b4f52 JR |
563 | #ifdef NO_STRTOUMAX |
564 | #define strtoumax gitstrtoumax | |
565 | extern uintmax_t gitstrtoumax(const char *, char **, int); | |
97000ba6 JS |
566 | #define strtoimax gitstrtoimax |
567 | extern intmax_t gitstrtoimax(const char *, char **, int); | |
bc6b4f52 JR |
568 | #endif |
569 | ||
fa0c87c3 AR |
570 | #ifdef NO_HSTRERROR |
571 | #define hstrerror githstrerror | |
572 | extern const char *githstrerror(int herror); | |
573 | #endif | |
574 | ||
b21b9f1d RS |
575 | #ifdef NO_MEMMEM |
576 | #define memmem gitmemmem | |
577 | void *gitmemmem(const void *haystack, size_t haystacklen, | |
578 | const void *needle, size_t needlelen); | |
579 | #endif | |
580 | ||
40036bed MK |
581 | #ifdef NO_GETPAGESIZE |
582 | #define getpagesize() sysconf(_SC_PAGESIZE) | |
583 | #endif | |
584 | ||
cba22528 | 585 | #ifdef FREAD_READS_DIRECTORIES |
c5445fe0 JS |
586 | #ifdef fopen |
587 | #undef fopen | |
588 | #endif | |
cba22528 BC |
589 | #define fopen(a,b) git_fopen(a,b) |
590 | extern FILE *git_fopen(const char*, const char*); | |
591 | #endif | |
592 | ||
c4582f93 | 593 | #ifdef SNPRINTF_RETURNS_BOGUS |
ab03803c BS |
594 | #ifdef snprintf |
595 | #undef snprintf | |
596 | #endif | |
c4582f93 MR |
597 | #define snprintf git_snprintf |
598 | extern int git_snprintf(char *str, size_t maxsize, | |
599 | const char *format, ...); | |
ab03803c BS |
600 | #ifdef vsnprintf |
601 | #undef vsnprintf | |
602 | #endif | |
c4582f93 MR |
603 | #define vsnprintf git_vsnprintf |
604 | extern int git_vsnprintf(char *str, size_t maxsize, | |
605 | const char *format, va_list ap); | |
606 | #endif | |
607 | ||
726c8ef5 JS |
608 | #ifdef __GLIBC_PREREQ |
609 | #if __GLIBC_PREREQ(2, 1) | |
610 | #define HAVE_STRCHRNUL | |
137c6eaa | 611 | #define HAVE_MEMPCPY |
726c8ef5 JS |
612 | #endif |
613 | #endif | |
614 | ||
615 | #ifndef HAVE_STRCHRNUL | |
659c69cf | 616 | #define strchrnul gitstrchrnul |
9e79f00f AE |
617 | static inline char *gitstrchrnul(const char *s, int c) |
618 | { | |
619 | while (*s && *s != c) | |
620 | s++; | |
621 | return (char *)s; | |
622 | } | |
659c69cf RS |
623 | #endif |
624 | ||
137c6eaa JN |
625 | #ifndef HAVE_MEMPCPY |
626 | #define mempcpy gitmempcpy | |
627 | static inline void *gitmempcpy(void *dest, const void *src, size_t n) | |
628 | { | |
629 | return (char *)memcpy(dest, src, n) + n; | |
630 | } | |
631 | #endif | |
632 | ||
da523cc5 MP |
633 | #ifdef NO_INET_PTON |
634 | int inet_pton(int af, const char *src, void *dst); | |
635 | #endif | |
636 | ||
637 | #ifdef NO_INET_NTOP | |
638 | const char *inet_ntop(int af, const void *src, char *dst, size_t size); | |
639 | #endif | |
640 | ||
0f4b6db3 EB |
641 | #ifdef NO_PTHREADS |
642 | #define atexit git_atexit | |
643 | extern int git_atexit(void (*handler)(void)); | |
644 | #endif | |
645 | ||
7c3ecb32 | 646 | extern void release_pack_memory(size_t); |
97bfeb34 | 647 | |
851c34b0 JS |
648 | typedef void (*try_to_free_t)(size_t); |
649 | extern try_to_free_t set_try_to_free_routine(try_to_free_t); | |
a9a74636 | 650 | |
61f76a36 KS |
651 | #ifdef HAVE_ALLOCA_H |
652 | # include <alloca.h> | |
653 | # define xalloca(size) (alloca(size)) | |
654 | # define xalloca_free(p) do {} while (0) | |
655 | #else | |
656 | # define xalloca(size) (xmalloc(size)) | |
657 | # define xalloca_free(p) (free(p)) | |
658 | #endif | |
112db553 LT |
659 | extern char *xstrdup(const char *str); |
660 | extern void *xmalloc(size_t size); | |
5bf9219d | 661 | extern void *xmallocz(size_t size); |
f8bb1d94 | 662 | extern void *xmallocz_gently(size_t size); |
112db553 LT |
663 | extern void *xmemdupz(const void *data, size_t len); |
664 | extern char *xstrndup(const char *str, size_t len); | |
665 | extern void *xrealloc(void *ptr, size_t size); | |
666 | extern void *xcalloc(size_t nmemb, size_t size); | |
667 | extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
668 | extern ssize_t xread(int fd, void *buf, size_t len); | |
669 | extern ssize_t xwrite(int fd, const void *buf, size_t len); | |
9aa91af0 | 670 | extern ssize_t xpread(int fd, void *buf, size_t len, off_t offset); |
112db553 LT |
671 | extern int xdup(int fd); |
672 | extern FILE *xfdopen(int fd, const char *mode); | |
673 | extern int xmkstemp(char *template); | |
463db9b1 | 674 | extern int xmkstemp_mode(char *template, int mode); |
6e180cdc | 675 | extern int odb_mkstemp(char *template, size_t limit, const char *pattern); |
8640d496 | 676 | extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1); |
aa14e980 | 677 | extern char *xgetcwd(void); |
f21a47b2 | 678 | |
3ac22f82 RS |
679 | #define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), (alloc) * sizeof(*(x))) |
680 | ||
dc49cd76 SP |
681 | static inline size_t xsize_t(off_t len) |
682 | { | |
46be82df TR |
683 | if (len > (size_t) len) |
684 | die("Cannot handle files this big"); | |
dc49cd76 SP |
685 | return (size_t)len; |
686 | } | |
687 | ||
f1589d10 RJ |
688 | /* in ctype.c, for kwset users */ |
689 | extern const char tolower_trans_tbl[256]; | |
690 | ||
4050c0df | 691 | /* Sane ctype - no locale, and works with signed chars */ |
c2e9364a | 692 | #undef isascii |
4050c0df JH |
693 | #undef isspace |
694 | #undef isdigit | |
695 | #undef isalpha | |
696 | #undef isalnum | |
0fcec2ce | 697 | #undef isprint |
43ccdf56 NK |
698 | #undef islower |
699 | #undef isupper | |
4050c0df JH |
700 | #undef tolower |
701 | #undef toupper | |
1c149ab2 NTND |
702 | #undef iscntrl |
703 | #undef ispunct | |
704 | #undef isxdigit | |
2adf7247 | 705 | |
ca5ab7d1 | 706 | extern const unsigned char sane_ctype[256]; |
4050c0df JH |
707 | #define GIT_SPACE 0x01 |
708 | #define GIT_DIGIT 0x02 | |
709 | #define GIT_ALPHA 0x04 | |
8cc32992 | 710 | #define GIT_GLOB_SPECIAL 0x08 |
f9b7cce6 | 711 | #define GIT_REGEX_SPECIAL 0x10 |
2f6c9760 | 712 | #define GIT_PATHSPEC_MAGIC 0x20 |
1c149ab2 NTND |
713 | #define GIT_CNTRL 0x40 |
714 | #define GIT_PUNCT 0x80 | |
4050c0df | 715 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
c2e9364a | 716 | #define isascii(x) (((x) & ~0x7f) == 0) |
4050c0df JH |
717 | #define isspace(x) sane_istest(x,GIT_SPACE) |
718 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
719 | #define isalpha(x) sane_istest(x,GIT_ALPHA) | |
720 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
0fcec2ce | 721 | #define isprint(x) ((x) >= 0x20 && (x) <= 0x7e) |
43ccdf56 NK |
722 | #define islower(x) sane_iscase(x, 1) |
723 | #define isupper(x) sane_iscase(x, 0) | |
8cc32992 | 724 | #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL) |
f9b7cce6 | 725 | #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL) |
1c149ab2 NTND |
726 | #define iscntrl(x) (sane_istest(x,GIT_CNTRL)) |
727 | #define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \ | |
728 | GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC) | |
50a71776 | 729 | #define isxdigit(x) (hexval_table[(unsigned char)(x)] != -1) |
4050c0df JH |
730 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
731 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
2f6c9760 | 732 | #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC) |
4050c0df JH |
733 | |
734 | static inline int sane_case(int x, int high) | |
735 | { | |
736 | if (sane_istest(x, GIT_ALPHA)) | |
737 | x = (x & ~0x20) | high; | |
738 | return x; | |
739 | } | |
740 | ||
43ccdf56 NK |
741 | static inline int sane_iscase(int x, int is_lower) |
742 | { | |
743 | if (!sane_istest(x, GIT_ALPHA)) | |
744 | return 0; | |
745 | ||
746 | if (is_lower) | |
747 | return (x & 0x20) != 0; | |
748 | else | |
749 | return (x & 0x20) == 0; | |
750 | } | |
751 | ||
6aead43d JM |
752 | static inline int strtoul_ui(char const *s, int base, unsigned int *result) |
753 | { | |
754 | unsigned long ul; | |
755 | char *p; | |
756 | ||
757 | errno = 0; | |
758 | ul = strtoul(s, &p, base); | |
759 | if (errno || *p || p == s || (unsigned int) ul != ul) | |
760 | return -1; | |
761 | *result = ul; | |
762 | return 0; | |
763 | } | |
764 | ||
7791ecbc JH |
765 | static inline int strtol_i(char const *s, int base, int *result) |
766 | { | |
767 | long ul; | |
768 | char *p; | |
769 | ||
770 | errno = 0; | |
771 | ul = strtol(s, &p, base); | |
772 | if (errno || *p || p == s || (int) ul != ul) | |
773 | return -1; | |
774 | *result = ul; | |
775 | return 0; | |
776 | } | |
777 | ||
43fe901b BD |
778 | #ifdef INTERNAL_QSORT |
779 | void git_qsort(void *base, size_t nmemb, size_t size, | |
780 | int(*compar)(const void *, const void *)); | |
781 | #define qsort git_qsort | |
782 | #endif | |
783 | ||
81a24b52 AR |
784 | #ifndef DIR_HAS_BSD_GROUP_SEMANTICS |
785 | # define FORCE_DIR_SET_GID S_ISGID | |
786 | #else | |
787 | # define FORCE_DIR_SET_GID 0 | |
788 | #endif | |
789 | ||
c06ff490 KB |
790 | #ifdef NO_NSEC |
791 | #undef USE_NSEC | |
792 | #define ST_CTIME_NSEC(st) 0 | |
793 | #define ST_MTIME_NSEC(st) 0 | |
794 | #else | |
c567383b BG |
795 | #ifdef USE_ST_TIMESPEC |
796 | #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec)) | |
797 | #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec)) | |
798 | #else | |
c06ff490 KB |
799 | #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec)) |
800 | #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec)) | |
801 | #endif | |
c567383b | 802 | #endif |
c06ff490 | 803 | |
34779c53 JS |
804 | #ifdef UNRELIABLE_FSTAT |
805 | #define fstat_is_reliable() 0 | |
806 | #else | |
807 | #define fstat_is_reliable() 1 | |
808 | #endif | |
809 | ||
ab8632ae | 810 | #ifndef va_copy |
26db0f2e JN |
811 | /* |
812 | * Since an obvious implementation of va_list would be to make it a | |
813 | * pointer into the stack frame, a simple assignment will work on | |
814 | * many systems. But let's try to be more portable. | |
815 | */ | |
816 | #ifdef __va_copy | |
817 | #define va_copy(dst, src) __va_copy(dst, src) | |
818 | #else | |
819 | #define va_copy(dst, src) ((dst) = (src)) | |
820 | #endif | |
ab8632ae JK |
821 | #endif |
822 | ||
f51140c2 | 823 | #if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__C99_MACRO_WITH_VA_ARGS) |
e05bed96 KB |
824 | #define HAVE_VARIADIC_MACROS 1 |
825 | #endif | |
826 | ||
fc71db39 AR |
827 | /* |
828 | * Preserves errno, prints a message, but gives no warning for ENOENT. | |
1054af7d RS |
829 | * Returns 0 on success, which includes trying to unlink an object that does |
830 | * not exist. | |
fc71db39 AR |
831 | */ |
832 | int unlink_or_warn(const char *path); | |
9ccc0c08 RS |
833 | /* |
834 | * Tries to unlink file. Returns 0 if unlink succeeded | |
835 | * or the file already didn't exist. Returns -1 and | |
836 | * appends a message to err suitable for | |
837 | * 'error("%s", err->buf)' on error. | |
838 | */ | |
839 | int unlink_or_msg(const char *file, struct strbuf *err); | |
d1723296 | 840 | /* |
1054af7d RS |
841 | * Preserves errno, prints a message, but gives no warning for ENOENT. |
842 | * Returns 0 on success, which includes trying to remove a directory that does | |
843 | * not exist. | |
d1723296 PC |
844 | */ |
845 | int rmdir_or_warn(const char *path); | |
80d706af PC |
846 | /* |
847 | * Calls the correct function out of {unlink,rmdir}_or_warn based on | |
848 | * the supplied file mode. | |
849 | */ | |
850 | int remove_or_warn(unsigned int mode, const char *path); | |
fc71db39 | 851 | |
e5c52c98 JN |
852 | /* |
853 | * Call access(2), but warn for any error except "missing file" | |
854 | * (ENOENT or ENOTDIR). | |
855 | */ | |
4698c8fe JN |
856 | #define ACCESS_EACCES_OK (1U << 0) |
857 | int access_or_warn(const char *path, int mode, unsigned flag); | |
858 | int access_or_die(const char *path, int mode, unsigned flag); | |
ba8bd830 | 859 | |
55b38a48 JH |
860 | /* Warn on an inaccessible file that ought to be accessible */ |
861 | void warn_on_inaccessible(const char *path); | |
862 | ||
2f705875 JK |
863 | /* Get the passwd entry for the UID of the current process. */ |
864 | struct passwd *xgetpwuid_self(void); | |
865 | ||
66547547 JK |
866 | #ifdef GMTIME_UNRELIABLE_ERRORS |
867 | struct tm *git_gmtime(const time_t *); | |
868 | struct tm *git_gmtime_r(const time_t *, struct tm *); | |
869 | #define gmtime git_gmtime | |
870 | #define gmtime_r git_gmtime_r | |
871 | #endif | |
872 | ||
4050c0df | 873 | #endif |