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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__) && \ |
40036bed | 78 | !defined(__TANDEM) && !defined(__QNX__) |
85023577 JH |
79 | #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */ |
80 | #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */ | |
c902c9a6 | 81 | #endif |
fb952206 JR |
82 | #define _ALL_SOURCE 1 |
83 | #define _GNU_SOURCE 1 | |
84 | #define _BSD_SOURCE 1 | |
9a695fbf | 85 | #define _NETBSD_SOURCE 1 |
9398b859 | 86 | #define _SGI_SOURCE 1 |
85023577 | 87 | |
435bdf8c MSO |
88 | #ifdef WIN32 /* Both MinGW and MSVC */ |
89 | #define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */ | |
90 | #include <winsock2.h> | |
91 | #include <windows.h> | |
92 | #endif | |
93 | ||
4050c0df JH |
94 | #include <unistd.h> |
95 | #include <stdio.h> | |
96 | #include <sys/stat.h> | |
97 | #include <fcntl.h> | |
98 | #include <stddef.h> | |
99 | #include <stdlib.h> | |
100 | #include <stdarg.h> | |
101 | #include <string.h> | |
b3e103da | 102 | #ifdef HAVE_STRINGS_H |
6c109904 JS |
103 | #include <strings.h> /* for strcasecmp() */ |
104 | #endif | |
4050c0df JH |
105 | #include <errno.h> |
106 | #include <limits.h> | |
b2d05e06 | 107 | #ifdef NEEDS_SYS_PARAM_H |
4050c0df | 108 | #include <sys/param.h> |
6ede7205 | 109 | #endif |
4050c0df JH |
110 | #include <sys/types.h> |
111 | #include <dirent.h> | |
85023577 JH |
112 | #include <sys/time.h> |
113 | #include <time.h> | |
114 | #include <signal.h> | |
cebcab18 | 115 | #ifndef USE_WILDMATCH |
85023577 | 116 | #include <fnmatch.h> |
cebcab18 | 117 | #endif |
f4626df5 JS |
118 | #include <assert.h> |
119 | #include <regex.h> | |
120 | #include <utime.h> | |
088d8802 | 121 | #include <syslog.h> |
2844923d | 122 | #ifndef NO_SYS_POLL_H |
fdc12114 | 123 | #include <sys/poll.h> |
2844923d MD |
124 | #else |
125 | #include <poll.h> | |
126 | #endif | |
cfc755d3 VR |
127 | #if defined(__MINGW32__) |
128 | /* pull in Windows compatibility stuff */ | |
129 | #include "compat/mingw.h" | |
130 | #elif defined(_MSC_VER) | |
131 | #include "compat/msvc.h" | |
132 | #else | |
f4626df5 | 133 | #include <sys/wait.h> |
ebae9ff9 | 134 | #include <sys/resource.h> |
85023577 | 135 | #include <sys/socket.h> |
80bbe72b | 136 | #include <sys/ioctl.h> |
eb80042c | 137 | #include <termios.h> |
2600973f | 138 | #ifndef NO_SYS_SELECT_H |
80bbe72b | 139 | #include <sys/select.h> |
2600973f | 140 | #endif |
85023577 JH |
141 | #include <netinet/in.h> |
142 | #include <netinet/tcp.h> | |
143 | #include <arpa/inet.h> | |
144 | #include <netdb.h> | |
145 | #include <pwd.h> | |
e2770979 | 146 | #include <sys/un.h> |
2844923d | 147 | #ifndef NO_INTTYPES_H |
007e2ba6 | 148 | #include <inttypes.h> |
2844923d MD |
149 | #else |
150 | #include <stdint.h> | |
151 | #endif | |
6c109904 JS |
152 | #ifdef NO_INTPTR_T |
153 | /* | |
154 | * On I16LP32, ILP32 and LP64 "long" is the save bet, however | |
155 | * on LLP86, IL33LLP64 and P64 it needs to be "long long", | |
156 | * while on IP16 and IP16L32 it is "int" (resp. "short") | |
157 | * Size needs to match (or exceed) 'sizeof(void *)'. | |
158 | * We can't take "long long" here as not everybody has it. | |
159 | */ | |
160 | typedef long intptr_t; | |
161 | typedef unsigned long uintptr_t; | |
162 | #endif | |
41b20017 RJ |
163 | #if defined(__CYGWIN__) |
164 | #undef _XOPEN_SOURCE | |
165 | #include <grp.h> | |
166 | #define _XOPEN_SOURCE 600 | |
adbc0b6b | 167 | #include "compat/cygwin.h" |
41b20017 | 168 | #else |
fb952206 | 169 | #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */ |
85023577 | 170 | #include <grp.h> |
fb952206 | 171 | #define _ALL_SOURCE 1 |
41b20017 | 172 | #endif |
d75f8e61 | 173 | #endif |
85023577 | 174 | |
76759c7d TB |
175 | /* used on Mac OS X */ |
176 | #ifdef PRECOMPOSE_UNICODE | |
177 | #include "compat/precompose_utf8.h" | |
178 | #else | |
179 | #define precompose_str(in,i_nfd2nfc) | |
180 | #define precompose_argv(c,v) | |
181 | #define probe_utf8_pathname_composition(a,b) | |
182 | #endif | |
183 | ||
0539ecfd JS |
184 | #ifdef MKDIR_WO_TRAILING_SLASH |
185 | #define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b)) | |
186 | extern int compat_mkdir_wo_trailing_slash(const char*, mode_t); | |
187 | #endif | |
188 | ||
7f9e848c JS |
189 | #ifdef NO_STRUCT_ITIMERVAL |
190 | struct itimerval { | |
191 | struct timeval it_interval; | |
192 | struct timeval it_value; | |
193 | } | |
194 | #endif | |
195 | ||
196 | #ifdef NO_SETITIMER | |
197 | #define setitimer(which,value,ovalue) | |
198 | #endif | |
199 | ||
e1c06886 DA |
200 | #ifndef NO_LIBGEN_H |
201 | #include <libgen.h> | |
202 | #else | |
203 | #define basename gitbasename | |
204 | extern char *gitbasename(char *); | |
205 | #endif | |
206 | ||
85023577 JH |
207 | #ifndef NO_ICONV |
208 | #include <iconv.h> | |
209 | #endif | |
4050c0df | 210 | |
684ec6c6 RS |
211 | #ifndef NO_OPENSSL |
212 | #include <openssl/ssl.h> | |
213 | #include <openssl/err.h> | |
214 | #endif | |
215 | ||
3b130ade DM |
216 | /* On most systems <netdb.h> would have given us this, but |
217 | * not on some systems (e.g. z/OS). | |
218 | */ | |
219 | #ifndef NI_MAXHOST | |
220 | #define NI_MAXHOST 1025 | |
221 | #endif | |
222 | ||
223 | #ifndef NI_MAXSERV | |
224 | #define NI_MAXSERV 32 | |
225 | #endif | |
226 | ||
d0c2449f JH |
227 | /* On most systems <limits.h> would have given us this, but |
228 | * not on some systems (e.g. GNU/Hurd). | |
229 | */ | |
230 | #ifndef PATH_MAX | |
231 | #define PATH_MAX 4096 | |
232 | #endif | |
233 | ||
c4001d92 SP |
234 | #ifndef PRIuMAX |
235 | #define PRIuMAX "llu" | |
236 | #endif | |
237 | ||
607bb3ff JS |
238 | #ifndef PRIu32 |
239 | #define PRIu32 "u" | |
240 | #endif | |
241 | ||
242 | #ifndef PRIx32 | |
243 | #define PRIx32 "x" | |
244 | #endif | |
245 | ||
5418d96d RJ |
246 | #ifndef PRIo32 |
247 | #define PRIo32 "o" | |
248 | #endif | |
249 | ||
80ba074f JS |
250 | #ifndef PATH_SEP |
251 | #define PATH_SEP ':' | |
252 | #endif | |
253 | ||
cb6a22c0 CW |
254 | #ifdef HAVE_PATHS_H |
255 | #include <paths.h> | |
256 | #endif | |
257 | #ifndef _PATH_DEFPATH | |
258 | #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin" | |
259 | #endif | |
260 | ||
23326d14 JS |
261 | #ifndef STRIP_EXTENSION |
262 | #define STRIP_EXTENSION "" | |
263 | #endif | |
264 | ||
25fe217b JS |
265 | #ifndef has_dos_drive_prefix |
266 | #define has_dos_drive_prefix(path) 0 | |
267 | #endif | |
268 | ||
269 | #ifndef is_dir_sep | |
270 | #define is_dir_sep(c) ((c) == '/') | |
271 | #endif | |
272 | ||
d1c69255 TN |
273 | #ifndef find_last_dir_sep |
274 | #define find_last_dir_sep(path) strrchr(path, '/') | |
275 | #endif | |
276 | ||
e4ac953b | 277 | #if defined(__HP_cc) && (__HP_cc >= 61000) |
b6ab349b MR |
278 | #define NORETURN __attribute__((noreturn)) |
279 | #define NORETURN_PTR | |
6520c846 | 280 | #elif defined(__GNUC__) && !defined(NO_NORETURN) |
4050c0df | 281 | #define NORETURN __attribute__((__noreturn__)) |
18660bc9 | 282 | #define NORETURN_PTR __attribute__((__noreturn__)) |
aba7dea8 RJ |
283 | #elif defined(_MSC_VER) |
284 | #define NORETURN __declspec(noreturn) | |
285 | #define NORETURN_PTR | |
4050c0df JH |
286 | #else |
287 | #define NORETURN | |
18660bc9 | 288 | #define NORETURN_PTR |
4050c0df JH |
289 | #ifndef __attribute__ |
290 | #define __attribute__(x) | |
291 | #endif | |
292 | #endif | |
293 | ||
51ea5519 NP |
294 | #include "compat/bswap.h" |
295 | ||
cebcab18 NTND |
296 | #ifdef USE_WILDMATCH |
297 | #include "wildmatch.h" | |
298 | #define FNM_PATHNAME WM_PATHNAME | |
299 | #define FNM_CASEFOLD WM_CASEFOLD | |
300 | #define FNM_NOMATCH WM_NOMATCH | |
301 | static inline int fnmatch(const char *pattern, const char *string, int flags) | |
302 | { | |
303 | return wildmatch(pattern, string, flags, NULL); | |
304 | } | |
305 | #endif | |
306 | ||
4050c0df | 307 | /* General helper functions */ |
ebaa79f4 | 308 | extern void vreportf(const char *prefix, const char *err, va_list params); |
3bc4181f | 309 | extern void vwritef(int fd, const char *prefix, const char *err, va_list params); |
a4f3131c | 310 | extern NORETURN void usage(const char *err); |
64b1cb74 | 311 | extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2))); |
a4f3131c EFL |
312 | extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2))); |
313 | extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
4050c0df | 314 | extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
46efd2d9 | 315 | extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); |
4050c0df | 316 | |
e208f9cc JK |
317 | /* |
318 | * Let callers be aware of the constant return value; this can help | |
9798f7e5 MK |
319 | * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though, |
320 | * because some compilers may not support variadic macros. Since we're only | |
321 | * trying to help gcc, anyway, it's OK; other compilers will fall back to | |
322 | * using the function as usual. | |
e208f9cc | 323 | */ |
5ded807f | 324 | #if defined(__GNUC__) && ! defined(__clang__) |
9798f7e5 | 325 | #define error(...) (error(__VA_ARGS__), -1) |
e208f9cc JK |
326 | #endif |
327 | ||
18660bc9 | 328 | extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)); |
3bc4181f | 329 | extern void set_error_routine(void (*routine)(const char *err, va_list params)); |
c19a490e | 330 | extern void set_die_is_recursing_routine(int (*routine)(void)); |
39a3f5ea | 331 | |
698a68be | 332 | extern int prefixcmp(const char *str, const char *prefix); |
8cc5b290 | 333 | extern int suffixcmp(const char *str, const char *suffix); |
698a68be | 334 | |
fbca5837 MV |
335 | static inline const char *skip_prefix(const char *str, const char *prefix) |
336 | { | |
337 | size_t len = strlen(prefix); | |
338 | return strncmp(str, prefix, len) ? NULL : str + len; | |
339 | } | |
340 | ||
b130a72b | 341 | #if defined(NO_MMAP) || defined(USE_WIN32_MMAP) |
4050c0df JH |
342 | |
343 | #ifndef PROT_READ | |
344 | #define PROT_READ 1 | |
345 | #define PROT_WRITE 2 | |
346 | #define MAP_PRIVATE 1 | |
4050c0df JH |
347 | #endif |
348 | ||
d6779124 SP |
349 | #define mmap git_mmap |
350 | #define munmap git_munmap | |
351 | extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
352 | extern int git_munmap(void *start, size_t length); | |
4050c0df | 353 | |
b130a72b JL |
354 | #else /* NO_MMAP || USE_WIN32_MMAP */ |
355 | ||
356 | #include <sys/mman.h> | |
357 | ||
358 | #endif /* NO_MMAP || USE_WIN32_MMAP */ | |
359 | ||
360 | #ifdef NO_MMAP | |
361 | ||
5faaf246 | 362 | /* This value must be multiple of (pagesize * 2) */ |
8c82534d SP |
363 | #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024) |
364 | ||
4050c0df JH |
365 | #else /* NO_MMAP */ |
366 | ||
5faaf246 | 367 | /* This value must be multiple of (pagesize * 2) */ |
22bac0ea SP |
368 | #define DEFAULT_PACKED_GIT_WINDOW_SIZE \ |
369 | (sizeof(void*) >= 8 \ | |
370 | ? 1 * 1024 * 1024 * 1024 \ | |
371 | : 32 * 1024 * 1024) | |
4050c0df JH |
372 | |
373 | #endif /* NO_MMAP */ | |
374 | ||
fcf3a21a GV |
375 | #ifndef MAP_FAILED |
376 | #define MAP_FAILED ((void *)-1) | |
377 | #endif | |
378 | ||
fdb2a2a6 JH |
379 | #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT |
380 | #define on_disk_bytes(st) ((st).st_size) | |
381 | #else | |
382 | #define on_disk_bytes(st) ((st).st_blocks * 512) | |
383 | #endif | |
384 | ||
22bac0ea | 385 | #define DEFAULT_PACKED_GIT_LIMIT \ |
ecaebf4a | 386 | ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256)) |
8c82534d | 387 | |
6900679c SH |
388 | #ifdef NO_PREAD |
389 | #define pread git_pread | |
390 | extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset); | |
391 | #endif | |
14086b0a SP |
392 | /* |
393 | * Forward decl that will remind us if its twin in cache.h changes. | |
394 | * This function is used in compat/pread.c. But we can't include | |
395 | * cache.h there. | |
396 | */ | |
397 | extern ssize_t read_in_full(int fd, void *buf, size_t count); | |
6900679c | 398 | |
4050c0df JH |
399 | #ifdef NO_SETENV |
400 | #define setenv gitsetenv | |
401 | extern int gitsetenv(const char *, const char *, int); | |
402 | #endif | |
403 | ||
ca5bb5d5 SP |
404 | #ifdef NO_MKDTEMP |
405 | #define mkdtemp gitmkdtemp | |
406 | extern char *gitmkdtemp(char *); | |
407 | #endif | |
408 | ||
0620b39b DA |
409 | #ifdef NO_MKSTEMPS |
410 | #define mkstemps gitmkstemps | |
411 | extern int gitmkstemps(char *, int); | |
412 | #endif | |
413 | ||
731043fd JR |
414 | #ifdef NO_UNSETENV |
415 | #define unsetenv gitunsetenv | |
416 | extern void gitunsetenv(const char *); | |
417 | #endif | |
418 | ||
4050c0df JH |
419 | #ifdef NO_STRCASESTR |
420 | #define strcasestr gitstrcasestr | |
421 | extern char *gitstrcasestr(const char *haystack, const char *needle); | |
422 | #endif | |
423 | ||
817151e6 PE |
424 | #ifdef NO_STRLCPY |
425 | #define strlcpy gitstrlcpy | |
426 | extern size_t gitstrlcpy(char *, const char *, size_t); | |
427 | #endif | |
428 | ||
bc6b4f52 JR |
429 | #ifdef NO_STRTOUMAX |
430 | #define strtoumax gitstrtoumax | |
431 | extern uintmax_t gitstrtoumax(const char *, char **, int); | |
97000ba6 JS |
432 | #define strtoimax gitstrtoimax |
433 | extern intmax_t gitstrtoimax(const char *, char **, int); | |
bc6b4f52 JR |
434 | #endif |
435 | ||
fa0c87c3 AR |
436 | #ifdef NO_HSTRERROR |
437 | #define hstrerror githstrerror | |
438 | extern const char *githstrerror(int herror); | |
439 | #endif | |
440 | ||
b21b9f1d RS |
441 | #ifdef NO_MEMMEM |
442 | #define memmem gitmemmem | |
443 | void *gitmemmem(const void *haystack, size_t haystacklen, | |
444 | const void *needle, size_t needlelen); | |
445 | #endif | |
446 | ||
40036bed MK |
447 | #ifdef NO_GETPAGESIZE |
448 | #define getpagesize() sysconf(_SC_PAGESIZE) | |
449 | #endif | |
450 | ||
cba22528 | 451 | #ifdef FREAD_READS_DIRECTORIES |
c5445fe0 JS |
452 | #ifdef fopen |
453 | #undef fopen | |
454 | #endif | |
cba22528 BC |
455 | #define fopen(a,b) git_fopen(a,b) |
456 | extern FILE *git_fopen(const char*, const char*); | |
457 | #endif | |
458 | ||
c4582f93 MR |
459 | #ifdef SNPRINTF_RETURNS_BOGUS |
460 | #define snprintf git_snprintf | |
461 | extern int git_snprintf(char *str, size_t maxsize, | |
462 | const char *format, ...); | |
463 | #define vsnprintf git_vsnprintf | |
464 | extern int git_vsnprintf(char *str, size_t maxsize, | |
465 | const char *format, va_list ap); | |
466 | #endif | |
467 | ||
726c8ef5 JS |
468 | #ifdef __GLIBC_PREREQ |
469 | #if __GLIBC_PREREQ(2, 1) | |
470 | #define HAVE_STRCHRNUL | |
137c6eaa | 471 | #define HAVE_MEMPCPY |
726c8ef5 JS |
472 | #endif |
473 | #endif | |
474 | ||
475 | #ifndef HAVE_STRCHRNUL | |
659c69cf | 476 | #define strchrnul gitstrchrnul |
9e79f00f AE |
477 | static inline char *gitstrchrnul(const char *s, int c) |
478 | { | |
479 | while (*s && *s != c) | |
480 | s++; | |
481 | return (char *)s; | |
482 | } | |
659c69cf RS |
483 | #endif |
484 | ||
137c6eaa JN |
485 | #ifndef HAVE_MEMPCPY |
486 | #define mempcpy gitmempcpy | |
487 | static inline void *gitmempcpy(void *dest, const void *src, size_t n) | |
488 | { | |
489 | return (char *)memcpy(dest, src, n) + n; | |
490 | } | |
491 | #endif | |
492 | ||
da523cc5 MP |
493 | #ifdef NO_INET_PTON |
494 | int inet_pton(int af, const char *src, void *dst); | |
495 | #endif | |
496 | ||
497 | #ifdef NO_INET_NTOP | |
498 | const char *inet_ntop(int af, const void *src, char *dst, size_t size); | |
499 | #endif | |
500 | ||
d1efefa4 | 501 | extern void release_pack_memory(size_t, int); |
97bfeb34 | 502 | |
851c34b0 JS |
503 | typedef void (*try_to_free_t)(size_t); |
504 | extern try_to_free_t set_try_to_free_routine(try_to_free_t); | |
a9a74636 | 505 | |
112db553 LT |
506 | extern char *xstrdup(const char *str); |
507 | extern void *xmalloc(size_t size); | |
5bf9219d | 508 | extern void *xmallocz(size_t size); |
112db553 LT |
509 | extern void *xmemdupz(const void *data, size_t len); |
510 | extern char *xstrndup(const char *str, size_t len); | |
511 | extern void *xrealloc(void *ptr, size_t size); | |
512 | extern void *xcalloc(size_t nmemb, size_t size); | |
513 | extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
514 | extern ssize_t xread(int fd, void *buf, size_t len); | |
515 | extern ssize_t xwrite(int fd, const void *buf, size_t len); | |
516 | extern int xdup(int fd); | |
517 | extern FILE *xfdopen(int fd, const char *mode); | |
518 | extern int xmkstemp(char *template); | |
463db9b1 | 519 | extern int xmkstemp_mode(char *template, int mode); |
6e180cdc JH |
520 | extern int odb_mkstemp(char *template, size_t limit, const char *pattern); |
521 | extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1); | |
f21a47b2 | 522 | |
dc49cd76 SP |
523 | static inline size_t xsize_t(off_t len) |
524 | { | |
46be82df TR |
525 | if (len > (size_t) len) |
526 | die("Cannot handle files this big"); | |
dc49cd76 SP |
527 | return (size_t)len; |
528 | } | |
529 | ||
5bb1cda5 | 530 | static inline int has_extension(const char *filename, const char *ext) |
83a2b841 | 531 | { |
5bb1cda5 RS |
532 | size_t len = strlen(filename); |
533 | size_t extlen = strlen(ext); | |
83a2b841 RS |
534 | return len > extlen && !memcmp(filename + len - extlen, ext, extlen); |
535 | } | |
536 | ||
f1589d10 RJ |
537 | /* in ctype.c, for kwset users */ |
538 | extern const char tolower_trans_tbl[256]; | |
539 | ||
4050c0df | 540 | /* Sane ctype - no locale, and works with signed chars */ |
c2e9364a | 541 | #undef isascii |
4050c0df JH |
542 | #undef isspace |
543 | #undef isdigit | |
544 | #undef isalpha | |
545 | #undef isalnum | |
0fcec2ce | 546 | #undef isprint |
43ccdf56 NK |
547 | #undef islower |
548 | #undef isupper | |
4050c0df JH |
549 | #undef tolower |
550 | #undef toupper | |
1c149ab2 NTND |
551 | #undef iscntrl |
552 | #undef ispunct | |
553 | #undef isxdigit | |
2adf7247 | 554 | |
ca5ab7d1 | 555 | extern const unsigned char sane_ctype[256]; |
4050c0df JH |
556 | #define GIT_SPACE 0x01 |
557 | #define GIT_DIGIT 0x02 | |
558 | #define GIT_ALPHA 0x04 | |
8cc32992 | 559 | #define GIT_GLOB_SPECIAL 0x08 |
f9b7cce6 | 560 | #define GIT_REGEX_SPECIAL 0x10 |
2f6c9760 | 561 | #define GIT_PATHSPEC_MAGIC 0x20 |
1c149ab2 NTND |
562 | #define GIT_CNTRL 0x40 |
563 | #define GIT_PUNCT 0x80 | |
4050c0df | 564 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
c2e9364a | 565 | #define isascii(x) (((x) & ~0x7f) == 0) |
4050c0df JH |
566 | #define isspace(x) sane_istest(x,GIT_SPACE) |
567 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
568 | #define isalpha(x) sane_istest(x,GIT_ALPHA) | |
569 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
0fcec2ce | 570 | #define isprint(x) ((x) >= 0x20 && (x) <= 0x7e) |
43ccdf56 NK |
571 | #define islower(x) sane_iscase(x, 1) |
572 | #define isupper(x) sane_iscase(x, 0) | |
8cc32992 | 573 | #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL) |
f9b7cce6 | 574 | #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL) |
1c149ab2 NTND |
575 | #define iscntrl(x) (sane_istest(x,GIT_CNTRL)) |
576 | #define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \ | |
577 | GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC) | |
578 | #define isxdigit(x) (hexval_table[x] != -1) | |
4050c0df JH |
579 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
580 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
2f6c9760 | 581 | #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC) |
4050c0df JH |
582 | |
583 | static inline int sane_case(int x, int high) | |
584 | { | |
585 | if (sane_istest(x, GIT_ALPHA)) | |
586 | x = (x & ~0x20) | high; | |
587 | return x; | |
588 | } | |
589 | ||
43ccdf56 NK |
590 | static inline int sane_iscase(int x, int is_lower) |
591 | { | |
592 | if (!sane_istest(x, GIT_ALPHA)) | |
593 | return 0; | |
594 | ||
595 | if (is_lower) | |
596 | return (x & 0x20) != 0; | |
597 | else | |
598 | return (x & 0x20) == 0; | |
599 | } | |
600 | ||
6aead43d JM |
601 | static inline int strtoul_ui(char const *s, int base, unsigned int *result) |
602 | { | |
603 | unsigned long ul; | |
604 | char *p; | |
605 | ||
606 | errno = 0; | |
607 | ul = strtoul(s, &p, base); | |
608 | if (errno || *p || p == s || (unsigned int) ul != ul) | |
609 | return -1; | |
610 | *result = ul; | |
611 | return 0; | |
612 | } | |
613 | ||
7791ecbc JH |
614 | static inline int strtol_i(char const *s, int base, int *result) |
615 | { | |
616 | long ul; | |
617 | char *p; | |
618 | ||
619 | errno = 0; | |
620 | ul = strtol(s, &p, base); | |
621 | if (errno || *p || p == s || (int) ul != ul) | |
622 | return -1; | |
623 | *result = ul; | |
624 | return 0; | |
625 | } | |
626 | ||
43fe901b BD |
627 | #ifdef INTERNAL_QSORT |
628 | void git_qsort(void *base, size_t nmemb, size_t size, | |
629 | int(*compar)(const void *, const void *)); | |
630 | #define qsort git_qsort | |
631 | #endif | |
632 | ||
81a24b52 AR |
633 | #ifndef DIR_HAS_BSD_GROUP_SEMANTICS |
634 | # define FORCE_DIR_SET_GID S_ISGID | |
635 | #else | |
636 | # define FORCE_DIR_SET_GID 0 | |
637 | #endif | |
638 | ||
c06ff490 KB |
639 | #ifdef NO_NSEC |
640 | #undef USE_NSEC | |
641 | #define ST_CTIME_NSEC(st) 0 | |
642 | #define ST_MTIME_NSEC(st) 0 | |
643 | #else | |
c567383b BG |
644 | #ifdef USE_ST_TIMESPEC |
645 | #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec)) | |
646 | #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec)) | |
647 | #else | |
c06ff490 KB |
648 | #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec)) |
649 | #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec)) | |
650 | #endif | |
c567383b | 651 | #endif |
c06ff490 | 652 | |
34779c53 JS |
653 | #ifdef UNRELIABLE_FSTAT |
654 | #define fstat_is_reliable() 0 | |
655 | #else | |
656 | #define fstat_is_reliable() 1 | |
657 | #endif | |
658 | ||
ab8632ae | 659 | #ifndef va_copy |
26db0f2e JN |
660 | /* |
661 | * Since an obvious implementation of va_list would be to make it a | |
662 | * pointer into the stack frame, a simple assignment will work on | |
663 | * many systems. But let's try to be more portable. | |
664 | */ | |
665 | #ifdef __va_copy | |
666 | #define va_copy(dst, src) __va_copy(dst, src) | |
667 | #else | |
668 | #define va_copy(dst, src) ((dst) = (src)) | |
669 | #endif | |
ab8632ae JK |
670 | #endif |
671 | ||
fc71db39 AR |
672 | /* |
673 | * Preserves errno, prints a message, but gives no warning for ENOENT. | |
674 | * Always returns the return value of unlink(2). | |
675 | */ | |
676 | int unlink_or_warn(const char *path); | |
d1723296 PC |
677 | /* |
678 | * Likewise for rmdir(2). | |
679 | */ | |
680 | int rmdir_or_warn(const char *path); | |
80d706af PC |
681 | /* |
682 | * Calls the correct function out of {unlink,rmdir}_or_warn based on | |
683 | * the supplied file mode. | |
684 | */ | |
685 | int remove_or_warn(unsigned int mode, const char *path); | |
fc71db39 | 686 | |
e5c52c98 JN |
687 | /* |
688 | * Call access(2), but warn for any error except "missing file" | |
689 | * (ENOENT or ENOTDIR). | |
690 | */ | |
ba8bd830 | 691 | int access_or_warn(const char *path, int mode); |
96b9e0e3 | 692 | int access_or_die(const char *path, int mode); |
ba8bd830 | 693 | |
55b38a48 JH |
694 | /* Warn on an inaccessible file that ought to be accessible */ |
695 | void warn_on_inaccessible(const char *path); | |
696 | ||
2f705875 JK |
697 | /* Get the passwd entry for the UID of the current process. */ |
698 | struct passwd *xgetpwuid_self(void); | |
699 | ||
4050c0df | 700 | #endif |