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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 | ||
34 | /* | |
35 | * Signed integer overflow is undefined in C, so here's a helper macro | |
36 | * to detect if the sum of two integers will overflow. | |
37 | * | |
38 | * Requires: a >= 0, typeof(a) equals typeof(b) | |
39 | */ | |
40 | #define signed_add_overflows(a, b) \ | |
41 | ((b) > maximum_signed_value_of_type(a) - (a)) | |
42 | ||
8723f216 NP |
43 | #ifdef __GNUC__ |
44 | #define TYPEOF(x) (__typeof__(x)) | |
45 | #else | |
46 | #define TYPEOF(x) | |
47 | #endif | |
48 | ||
f630cfda | 49 | #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits)))) |
db7244bd | 50 | #define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */ |
8723f216 | 51 | |
98cb6f30 PH |
52 | #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) |
53 | ||
cf606e3d AW |
54 | /* Approximation of the length of the decimal representation of this type. */ |
55 | #define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) | |
56 | ||
4cb18a49 BC |
57 | #if defined(__sun__) |
58 | /* | |
59 | * On Solaris, when _XOPEN_EXTENDED is set, its header file | |
60 | * forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE | |
61 | * setting to say we are XPG5 or XPG6. Also on Solaris, | |
62 | * XPG6 programs must be compiled with a c99 compiler, while | |
63 | * non XPG6 programs must be compiled with a pre-c99 compiler. | |
64 | */ | |
65 | # if __STDC_VERSION__ - 0 >= 199901L | |
66 | # define _XOPEN_SOURCE 600 | |
67 | # else | |
68 | # define _XOPEN_SOURCE 500 | |
69 | # endif | |
6555b196 | 70 | #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \ |
761a889a | 71 | !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) |
85023577 JH |
72 | #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */ |
73 | #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */ | |
c902c9a6 | 74 | #endif |
fb952206 JR |
75 | #define _ALL_SOURCE 1 |
76 | #define _GNU_SOURCE 1 | |
77 | #define _BSD_SOURCE 1 | |
9a695fbf | 78 | #define _NETBSD_SOURCE 1 |
9398b859 | 79 | #define _SGI_SOURCE 1 |
85023577 | 80 | |
435bdf8c MSO |
81 | #ifdef WIN32 /* Both MinGW and MSVC */ |
82 | #define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */ | |
83 | #include <winsock2.h> | |
84 | #include <windows.h> | |
85 | #endif | |
86 | ||
4050c0df JH |
87 | #include <unistd.h> |
88 | #include <stdio.h> | |
89 | #include <sys/stat.h> | |
90 | #include <fcntl.h> | |
91 | #include <stddef.h> | |
92 | #include <stdlib.h> | |
93 | #include <stdarg.h> | |
94 | #include <string.h> | |
95 | #include <errno.h> | |
96 | #include <limits.h> | |
97 | #include <sys/param.h> | |
4050c0df JH |
98 | #include <sys/types.h> |
99 | #include <dirent.h> | |
85023577 JH |
100 | #include <sys/time.h> |
101 | #include <time.h> | |
102 | #include <signal.h> | |
85023577 | 103 | #include <fnmatch.h> |
f4626df5 JS |
104 | #include <assert.h> |
105 | #include <regex.h> | |
106 | #include <utime.h> | |
088d8802 | 107 | #include <syslog.h> |
2844923d | 108 | #ifndef NO_SYS_POLL_H |
fdc12114 | 109 | #include <sys/poll.h> |
2844923d MD |
110 | #else |
111 | #include <poll.h> | |
112 | #endif | |
f4626df5 JS |
113 | #ifndef __MINGW32__ |
114 | #include <sys/wait.h> | |
85023577 | 115 | #include <sys/socket.h> |
80bbe72b | 116 | #include <sys/ioctl.h> |
eb80042c | 117 | #include <termios.h> |
2600973f | 118 | #ifndef NO_SYS_SELECT_H |
80bbe72b | 119 | #include <sys/select.h> |
2600973f | 120 | #endif |
85023577 JH |
121 | #include <netinet/in.h> |
122 | #include <netinet/tcp.h> | |
123 | #include <arpa/inet.h> | |
124 | #include <netdb.h> | |
125 | #include <pwd.h> | |
2844923d | 126 | #ifndef NO_INTTYPES_H |
007e2ba6 | 127 | #include <inttypes.h> |
2844923d MD |
128 | #else |
129 | #include <stdint.h> | |
130 | #endif | |
41b20017 RJ |
131 | #if defined(__CYGWIN__) |
132 | #undef _XOPEN_SOURCE | |
133 | #include <grp.h> | |
134 | #define _XOPEN_SOURCE 600 | |
adbc0b6b | 135 | #include "compat/cygwin.h" |
41b20017 | 136 | #else |
fb952206 | 137 | #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */ |
85023577 | 138 | #include <grp.h> |
fb952206 | 139 | #define _ALL_SOURCE 1 |
41b20017 | 140 | #endif |
f4626df5 JS |
141 | #else /* __MINGW32__ */ |
142 | /* pull in Windows compatibility stuff */ | |
143 | #include "compat/mingw.h" | |
144 | #endif /* __MINGW32__ */ | |
d75f8e61 FL |
145 | #ifdef _MSC_VER |
146 | #include "compat/msvc.h" | |
147 | #endif | |
85023577 | 148 | |
e1c06886 DA |
149 | #ifndef NO_LIBGEN_H |
150 | #include <libgen.h> | |
151 | #else | |
152 | #define basename gitbasename | |
153 | extern char *gitbasename(char *); | |
154 | #endif | |
155 | ||
85023577 JH |
156 | #ifndef NO_ICONV |
157 | #include <iconv.h> | |
158 | #endif | |
4050c0df | 159 | |
684ec6c6 RS |
160 | #ifndef NO_OPENSSL |
161 | #include <openssl/ssl.h> | |
162 | #include <openssl/err.h> | |
163 | #endif | |
164 | ||
d0c2449f JH |
165 | /* On most systems <limits.h> would have given us this, but |
166 | * not on some systems (e.g. GNU/Hurd). | |
167 | */ | |
168 | #ifndef PATH_MAX | |
169 | #define PATH_MAX 4096 | |
170 | #endif | |
171 | ||
c4001d92 SP |
172 | #ifndef PRIuMAX |
173 | #define PRIuMAX "llu" | |
174 | #endif | |
175 | ||
607bb3ff JS |
176 | #ifndef PRIu32 |
177 | #define PRIu32 "u" | |
178 | #endif | |
179 | ||
180 | #ifndef PRIx32 | |
181 | #define PRIx32 "x" | |
182 | #endif | |
183 | ||
5418d96d RJ |
184 | #ifndef PRIo32 |
185 | #define PRIo32 "o" | |
186 | #endif | |
187 | ||
80ba074f JS |
188 | #ifndef PATH_SEP |
189 | #define PATH_SEP ':' | |
190 | #endif | |
191 | ||
cb6a22c0 CW |
192 | #ifdef HAVE_PATHS_H |
193 | #include <paths.h> | |
194 | #endif | |
195 | #ifndef _PATH_DEFPATH | |
196 | #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin" | |
197 | #endif | |
198 | ||
23326d14 JS |
199 | #ifndef STRIP_EXTENSION |
200 | #define STRIP_EXTENSION "" | |
201 | #endif | |
202 | ||
25fe217b JS |
203 | #ifndef has_dos_drive_prefix |
204 | #define has_dos_drive_prefix(path) 0 | |
205 | #endif | |
206 | ||
207 | #ifndef is_dir_sep | |
208 | #define is_dir_sep(c) ((c) == '/') | |
209 | #endif | |
210 | ||
4050c0df JH |
211 | #ifdef __GNUC__ |
212 | #define NORETURN __attribute__((__noreturn__)) | |
18660bc9 | 213 | #define NORETURN_PTR __attribute__((__noreturn__)) |
aba7dea8 RJ |
214 | #elif defined(_MSC_VER) |
215 | #define NORETURN __declspec(noreturn) | |
216 | #define NORETURN_PTR | |
4050c0df JH |
217 | #else |
218 | #define NORETURN | |
18660bc9 | 219 | #define NORETURN_PTR |
4050c0df JH |
220 | #ifndef __attribute__ |
221 | #define __attribute__(x) | |
222 | #endif | |
223 | #endif | |
224 | ||
51ea5519 NP |
225 | #include "compat/bswap.h" |
226 | ||
4050c0df | 227 | /* General helper functions */ |
ebaa79f4 | 228 | extern void vreportf(const char *prefix, const char *err, va_list params); |
a4f3131c | 229 | extern NORETURN void usage(const char *err); |
64b1cb74 | 230 | extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2))); |
a4f3131c EFL |
231 | extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2))); |
232 | extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
4050c0df | 233 | extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
46efd2d9 | 234 | extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); |
4050c0df | 235 | |
18660bc9 | 236 | extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)); |
39a3f5ea | 237 | |
698a68be | 238 | extern int prefixcmp(const char *str, const char *prefix); |
8cc5b290 | 239 | extern int suffixcmp(const char *str, const char *suffix); |
698a68be | 240 | |
fbca5837 MV |
241 | static inline const char *skip_prefix(const char *str, const char *prefix) |
242 | { | |
243 | size_t len = strlen(prefix); | |
244 | return strncmp(str, prefix, len) ? NULL : str + len; | |
245 | } | |
246 | ||
b130a72b | 247 | #if defined(NO_MMAP) || defined(USE_WIN32_MMAP) |
4050c0df JH |
248 | |
249 | #ifndef PROT_READ | |
250 | #define PROT_READ 1 | |
251 | #define PROT_WRITE 2 | |
252 | #define MAP_PRIVATE 1 | |
4050c0df JH |
253 | #endif |
254 | ||
d6779124 SP |
255 | #define mmap git_mmap |
256 | #define munmap git_munmap | |
257 | extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
258 | extern int git_munmap(void *start, size_t length); | |
4050c0df | 259 | |
b130a72b JL |
260 | #else /* NO_MMAP || USE_WIN32_MMAP */ |
261 | ||
262 | #include <sys/mman.h> | |
263 | ||
264 | #endif /* NO_MMAP || USE_WIN32_MMAP */ | |
265 | ||
266 | #ifdef NO_MMAP | |
267 | ||
5faaf246 | 268 | /* This value must be multiple of (pagesize * 2) */ |
8c82534d SP |
269 | #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024) |
270 | ||
4050c0df JH |
271 | #else /* NO_MMAP */ |
272 | ||
5faaf246 | 273 | /* This value must be multiple of (pagesize * 2) */ |
22bac0ea SP |
274 | #define DEFAULT_PACKED_GIT_WINDOW_SIZE \ |
275 | (sizeof(void*) >= 8 \ | |
276 | ? 1 * 1024 * 1024 * 1024 \ | |
277 | : 32 * 1024 * 1024) | |
4050c0df JH |
278 | |
279 | #endif /* NO_MMAP */ | |
280 | ||
fcf3a21a GV |
281 | #ifndef MAP_FAILED |
282 | #define MAP_FAILED ((void *)-1) | |
283 | #endif | |
284 | ||
fdb2a2a6 JH |
285 | #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT |
286 | #define on_disk_bytes(st) ((st).st_size) | |
287 | #else | |
288 | #define on_disk_bytes(st) ((st).st_blocks * 512) | |
289 | #endif | |
290 | ||
22bac0ea | 291 | #define DEFAULT_PACKED_GIT_LIMIT \ |
ecaebf4a | 292 | ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256)) |
8c82534d | 293 | |
6900679c SH |
294 | #ifdef NO_PREAD |
295 | #define pread git_pread | |
296 | extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset); | |
297 | #endif | |
14086b0a SP |
298 | /* |
299 | * Forward decl that will remind us if its twin in cache.h changes. | |
300 | * This function is used in compat/pread.c. But we can't include | |
301 | * cache.h there. | |
302 | */ | |
303 | extern ssize_t read_in_full(int fd, void *buf, size_t count); | |
6900679c | 304 | |
4050c0df JH |
305 | #ifdef NO_SETENV |
306 | #define setenv gitsetenv | |
307 | extern int gitsetenv(const char *, const char *, int); | |
308 | #endif | |
309 | ||
ca5bb5d5 SP |
310 | #ifdef NO_MKDTEMP |
311 | #define mkdtemp gitmkdtemp | |
312 | extern char *gitmkdtemp(char *); | |
313 | #endif | |
314 | ||
0620b39b DA |
315 | #ifdef NO_MKSTEMPS |
316 | #define mkstemps gitmkstemps | |
317 | extern int gitmkstemps(char *, int); | |
318 | #endif | |
319 | ||
731043fd JR |
320 | #ifdef NO_UNSETENV |
321 | #define unsetenv gitunsetenv | |
322 | extern void gitunsetenv(const char *); | |
323 | #endif | |
324 | ||
4050c0df JH |
325 | #ifdef NO_STRCASESTR |
326 | #define strcasestr gitstrcasestr | |
327 | extern char *gitstrcasestr(const char *haystack, const char *needle); | |
328 | #endif | |
329 | ||
817151e6 PE |
330 | #ifdef NO_STRLCPY |
331 | #define strlcpy gitstrlcpy | |
332 | extern size_t gitstrlcpy(char *, const char *, size_t); | |
333 | #endif | |
334 | ||
bc6b4f52 JR |
335 | #ifdef NO_STRTOUMAX |
336 | #define strtoumax gitstrtoumax | |
337 | extern uintmax_t gitstrtoumax(const char *, char **, int); | |
338 | #endif | |
339 | ||
78457bc0 JN |
340 | #ifdef NO_STRTOK_R |
341 | #define strtok_r gitstrtok_r | |
342 | extern char *gitstrtok_r(char *s, const char *delim, char **save_ptr); | |
343 | #endif | |
344 | ||
fa0c87c3 AR |
345 | #ifdef NO_HSTRERROR |
346 | #define hstrerror githstrerror | |
347 | extern const char *githstrerror(int herror); | |
348 | #endif | |
349 | ||
b21b9f1d RS |
350 | #ifdef NO_MEMMEM |
351 | #define memmem gitmemmem | |
352 | void *gitmemmem(const void *haystack, size_t haystacklen, | |
353 | const void *needle, size_t needlelen); | |
354 | #endif | |
355 | ||
cba22528 | 356 | #ifdef FREAD_READS_DIRECTORIES |
c5445fe0 JS |
357 | #ifdef fopen |
358 | #undef fopen | |
359 | #endif | |
cba22528 BC |
360 | #define fopen(a,b) git_fopen(a,b) |
361 | extern FILE *git_fopen(const char*, const char*); | |
362 | #endif | |
363 | ||
c4582f93 MR |
364 | #ifdef SNPRINTF_RETURNS_BOGUS |
365 | #define snprintf git_snprintf | |
366 | extern int git_snprintf(char *str, size_t maxsize, | |
367 | const char *format, ...); | |
368 | #define vsnprintf git_vsnprintf | |
369 | extern int git_vsnprintf(char *str, size_t maxsize, | |
370 | const char *format, va_list ap); | |
371 | #endif | |
372 | ||
726c8ef5 JS |
373 | #ifdef __GLIBC_PREREQ |
374 | #if __GLIBC_PREREQ(2, 1) | |
375 | #define HAVE_STRCHRNUL | |
137c6eaa | 376 | #define HAVE_MEMPCPY |
726c8ef5 JS |
377 | #endif |
378 | #endif | |
379 | ||
380 | #ifndef HAVE_STRCHRNUL | |
659c69cf | 381 | #define strchrnul gitstrchrnul |
9e79f00f AE |
382 | static inline char *gitstrchrnul(const char *s, int c) |
383 | { | |
384 | while (*s && *s != c) | |
385 | s++; | |
386 | return (char *)s; | |
387 | } | |
659c69cf RS |
388 | #endif |
389 | ||
137c6eaa JN |
390 | #ifndef HAVE_MEMPCPY |
391 | #define mempcpy gitmempcpy | |
392 | static inline void *gitmempcpy(void *dest, const void *src, size_t n) | |
393 | { | |
394 | return (char *)memcpy(dest, src, n) + n; | |
395 | } | |
396 | #endif | |
397 | ||
da523cc5 MP |
398 | #ifdef NO_INET_PTON |
399 | int inet_pton(int af, const char *src, void *dst); | |
400 | #endif | |
401 | ||
402 | #ifdef NO_INET_NTOP | |
403 | const char *inet_ntop(int af, const void *src, char *dst, size_t size); | |
404 | #endif | |
405 | ||
d1efefa4 | 406 | extern void release_pack_memory(size_t, int); |
97bfeb34 | 407 | |
851c34b0 JS |
408 | typedef void (*try_to_free_t)(size_t); |
409 | extern try_to_free_t set_try_to_free_routine(try_to_free_t); | |
a9a74636 | 410 | |
112db553 LT |
411 | extern char *xstrdup(const char *str); |
412 | extern void *xmalloc(size_t size); | |
5bf9219d | 413 | extern void *xmallocz(size_t size); |
112db553 LT |
414 | extern void *xmemdupz(const void *data, size_t len); |
415 | extern char *xstrndup(const char *str, size_t len); | |
416 | extern void *xrealloc(void *ptr, size_t size); | |
417 | extern void *xcalloc(size_t nmemb, size_t size); | |
418 | extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
419 | extern ssize_t xread(int fd, void *buf, size_t len); | |
420 | extern ssize_t xwrite(int fd, const void *buf, size_t len); | |
421 | extern int xdup(int fd); | |
422 | extern FILE *xfdopen(int fd, const char *mode); | |
423 | extern int xmkstemp(char *template); | |
463db9b1 | 424 | extern int xmkstemp_mode(char *template, int mode); |
6e180cdc JH |
425 | extern int odb_mkstemp(char *template, size_t limit, const char *pattern); |
426 | extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1); | |
f21a47b2 | 427 | |
dc49cd76 SP |
428 | static inline size_t xsize_t(off_t len) |
429 | { | |
46be82df TR |
430 | if (len > (size_t) len) |
431 | die("Cannot handle files this big"); | |
dc49cd76 SP |
432 | return (size_t)len; |
433 | } | |
434 | ||
5bb1cda5 | 435 | static inline int has_extension(const char *filename, const char *ext) |
83a2b841 | 436 | { |
5bb1cda5 RS |
437 | size_t len = strlen(filename); |
438 | size_t extlen = strlen(ext); | |
83a2b841 RS |
439 | return len > extlen && !memcmp(filename + len - extlen, ext, extlen); |
440 | } | |
441 | ||
4050c0df | 442 | /* Sane ctype - no locale, and works with signed chars */ |
c2e9364a | 443 | #undef isascii |
4050c0df JH |
444 | #undef isspace |
445 | #undef isdigit | |
446 | #undef isalpha | |
447 | #undef isalnum | |
448 | #undef tolower | |
449 | #undef toupper | |
450 | extern unsigned char sane_ctype[256]; | |
451 | #define GIT_SPACE 0x01 | |
452 | #define GIT_DIGIT 0x02 | |
453 | #define GIT_ALPHA 0x04 | |
8cc32992 | 454 | #define GIT_GLOB_SPECIAL 0x08 |
f9b7cce6 | 455 | #define GIT_REGEX_SPECIAL 0x10 |
4050c0df | 456 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
c2e9364a | 457 | #define isascii(x) (((x) & ~0x7f) == 0) |
4050c0df JH |
458 | #define isspace(x) sane_istest(x,GIT_SPACE) |
459 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
460 | #define isalpha(x) sane_istest(x,GIT_ALPHA) | |
461 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
8cc32992 | 462 | #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL) |
f9b7cce6 | 463 | #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL) |
4050c0df JH |
464 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
465 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
466 | ||
467 | static inline int sane_case(int x, int high) | |
468 | { | |
469 | if (sane_istest(x, GIT_ALPHA)) | |
470 | x = (x & ~0x20) | high; | |
471 | return x; | |
472 | } | |
473 | ||
6aead43d JM |
474 | static inline int strtoul_ui(char const *s, int base, unsigned int *result) |
475 | { | |
476 | unsigned long ul; | |
477 | char *p; | |
478 | ||
479 | errno = 0; | |
480 | ul = strtoul(s, &p, base); | |
481 | if (errno || *p || p == s || (unsigned int) ul != ul) | |
482 | return -1; | |
483 | *result = ul; | |
484 | return 0; | |
485 | } | |
486 | ||
7791ecbc JH |
487 | static inline int strtol_i(char const *s, int base, int *result) |
488 | { | |
489 | long ul; | |
490 | char *p; | |
491 | ||
492 | errno = 0; | |
493 | ul = strtol(s, &p, base); | |
494 | if (errno || *p || p == s || (int) ul != ul) | |
495 | return -1; | |
496 | *result = ul; | |
497 | return 0; | |
498 | } | |
499 | ||
43fe901b BD |
500 | #ifdef INTERNAL_QSORT |
501 | void git_qsort(void *base, size_t nmemb, size_t size, | |
502 | int(*compar)(const void *, const void *)); | |
503 | #define qsort git_qsort | |
504 | #endif | |
505 | ||
81a24b52 AR |
506 | #ifndef DIR_HAS_BSD_GROUP_SEMANTICS |
507 | # define FORCE_DIR_SET_GID S_ISGID | |
508 | #else | |
509 | # define FORCE_DIR_SET_GID 0 | |
510 | #endif | |
511 | ||
c06ff490 KB |
512 | #ifdef NO_NSEC |
513 | #undef USE_NSEC | |
514 | #define ST_CTIME_NSEC(st) 0 | |
515 | #define ST_MTIME_NSEC(st) 0 | |
516 | #else | |
c567383b BG |
517 | #ifdef USE_ST_TIMESPEC |
518 | #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec)) | |
519 | #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec)) | |
520 | #else | |
c06ff490 KB |
521 | #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec)) |
522 | #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec)) | |
523 | #endif | |
c567383b | 524 | #endif |
c06ff490 | 525 | |
34779c53 JS |
526 | #ifdef UNRELIABLE_FSTAT |
527 | #define fstat_is_reliable() 0 | |
528 | #else | |
529 | #define fstat_is_reliable() 1 | |
530 | #endif | |
531 | ||
fc71db39 AR |
532 | /* |
533 | * Preserves errno, prints a message, but gives no warning for ENOENT. | |
534 | * Always returns the return value of unlink(2). | |
535 | */ | |
536 | int unlink_or_warn(const char *path); | |
d1723296 PC |
537 | /* |
538 | * Likewise for rmdir(2). | |
539 | */ | |
540 | int rmdir_or_warn(const char *path); | |
80d706af PC |
541 | /* |
542 | * Calls the correct function out of {unlink,rmdir}_or_warn based on | |
543 | * the supplied file mode. | |
544 | */ | |
545 | int remove_or_warn(unsigned int mode, const char *path); | |
fc71db39 | 546 | |
4050c0df | 547 | #endif |