add strip_suffix function
[git/git.git] / git-compat-util.h
CommitLineData
4050c0df
JH
1#ifndef GIT_COMPAT_UTIL_H
2#define GIT_COMPAT_UTIL_H
3
b97e9116
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4#define _FILE_OFFSET_BITS 64
5
8f1d2e6f 6#ifndef FLEX_ARRAY
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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
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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
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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__) && \
92164af9 78 !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__)
85023577
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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
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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
380395d0 88#if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */
8453c125 89# if defined (_MSC_VER) && !defined(_WIN32_WINNT)
41f29991
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90# define _WIN32_WINNT 0x0502
91# endif
435bdf8c
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92#define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
93#include <winsock2.h>
94#include <windows.h>
380395d0 95#define GIT_WINDOWS_NATIVE
435bdf8c
MSO
96#endif
97
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98#include <unistd.h>
99#include <stdio.h>
100#include <sys/stat.h>
101#include <fcntl.h>
102#include <stddef.h>
103#include <stdlib.h>
104#include <stdarg.h>
105#include <string.h>
b3e103da 106#ifdef HAVE_STRINGS_H
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107#include <strings.h> /* for strcasecmp() */
108#endif
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109#include <errno.h>
110#include <limits.h>
b2d05e06 111#ifdef NEEDS_SYS_PARAM_H
4050c0df 112#include <sys/param.h>
6ede7205 113#endif
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114#include <sys/types.h>
115#include <dirent.h>
85023577
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116#include <sys/time.h>
117#include <time.h>
118#include <signal.h>
f4626df5
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119#include <assert.h>
120#include <regex.h>
121#include <utime.h>
088d8802 122#include <syslog.h>
2844923d 123#ifndef NO_SYS_POLL_H
fdc12114 124#include <sys/poll.h>
2844923d
MD
125#else
126#include <poll.h>
127#endif
2f0aaaf9 128
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129#if defined(__MINGW32__)
130/* pull in Windows compatibility stuff */
131#include "compat/mingw.h"
132#elif defined(_MSC_VER)
133#include "compat/msvc.h"
134#else
f4626df5 135#include <sys/wait.h>
ebae9ff9 136#include <sys/resource.h>
85023577 137#include <sys/socket.h>
80bbe72b 138#include <sys/ioctl.h>
eb80042c 139#include <termios.h>
2600973f 140#ifndef NO_SYS_SELECT_H
80bbe72b 141#include <sys/select.h>
2600973f 142#endif
85023577
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143#include <netinet/in.h>
144#include <netinet/tcp.h>
145#include <arpa/inet.h>
146#include <netdb.h>
147#include <pwd.h>
e2770979 148#include <sys/un.h>
2844923d 149#ifndef NO_INTTYPES_H
007e2ba6 150#include <inttypes.h>
2844923d
MD
151#else
152#include <stdint.h>
153#endif
6c109904
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154#ifdef NO_INTPTR_T
155/*
156 * On I16LP32, ILP32 and LP64 "long" is the save bet, however
157 * on LLP86, IL33LLP64 and P64 it needs to be "long long",
158 * while on IP16 and IP16L32 it is "int" (resp. "short")
159 * Size needs to match (or exceed) 'sizeof(void *)'.
160 * We can't take "long long" here as not everybody has it.
161 */
162typedef long intptr_t;
163typedef unsigned long uintptr_t;
164#endif
41b20017
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165#if defined(__CYGWIN__)
166#undef _XOPEN_SOURCE
167#include <grp.h>
168#define _XOPEN_SOURCE 600
169#else
fb952206 170#undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
85023577 171#include <grp.h>
fb952206 172#define _ALL_SOURCE 1
41b20017 173#endif
d75f8e61 174#endif
85023577 175
76759c7d
TB
176/* used on Mac OS X */
177#ifdef PRECOMPOSE_UNICODE
178#include "compat/precompose_utf8.h"
179#else
180#define precompose_str(in,i_nfd2nfc)
181#define precompose_argv(c,v)
182#define probe_utf8_pathname_composition(a,b)
183#endif
184
0539ecfd
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185#ifdef MKDIR_WO_TRAILING_SLASH
186#define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
187extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
188#endif
189
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190#ifdef NO_STRUCT_ITIMERVAL
191struct itimerval {
192 struct timeval it_interval;
193 struct timeval it_value;
194}
195#endif
196
197#ifdef NO_SETITIMER
198#define setitimer(which,value,ovalue)
199#endif
200
e1c06886
DA
201#ifndef NO_LIBGEN_H
202#include <libgen.h>
203#else
204#define basename gitbasename
205extern char *gitbasename(char *);
206#endif
207
85023577
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208#ifndef NO_ICONV
209#include <iconv.h>
210#endif
4050c0df 211
684ec6c6
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212#ifndef NO_OPENSSL
213#include <openssl/ssl.h>
214#include <openssl/err.h>
215#endif
216
3b130ade
DM
217/* On most systems <netdb.h> would have given us this, but
218 * not on some systems (e.g. z/OS).
219 */
220#ifndef NI_MAXHOST
221#define NI_MAXHOST 1025
222#endif
223
224#ifndef NI_MAXSERV
225#define NI_MAXSERV 32
226#endif
227
d0c2449f
JH
228/* On most systems <limits.h> would have given us this, but
229 * not on some systems (e.g. GNU/Hurd).
230 */
231#ifndef PATH_MAX
232#define PATH_MAX 4096
233#endif
234
c4001d92
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235#ifndef PRIuMAX
236#define PRIuMAX "llu"
237#endif
238
607bb3ff
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239#ifndef PRIu32
240#define PRIu32 "u"
241#endif
242
243#ifndef PRIx32
244#define PRIx32 "x"
245#endif
246
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247#ifndef PRIo32
248#define PRIo32 "o"
249#endif
250
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251#ifndef PATH_SEP
252#define PATH_SEP ':'
253#endif
254
cb6a22c0
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255#ifdef HAVE_PATHS_H
256#include <paths.h>
257#endif
258#ifndef _PATH_DEFPATH
259#define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
260#endif
261
23326d14
JS
262#ifndef STRIP_EXTENSION
263#define STRIP_EXTENSION ""
264#endif
265
25fe217b
JS
266#ifndef has_dos_drive_prefix
267#define has_dos_drive_prefix(path) 0
268#endif
269
270#ifndef is_dir_sep
271#define is_dir_sep(c) ((c) == '/')
272#endif
273
d1c69255
TN
274#ifndef find_last_dir_sep
275#define find_last_dir_sep(path) strrchr(path, '/')
276#endif
277
e4ac953b 278#if defined(__HP_cc) && (__HP_cc >= 61000)
b6ab349b
MR
279#define NORETURN __attribute__((noreturn))
280#define NORETURN_PTR
6520c846 281#elif defined(__GNUC__) && !defined(NO_NORETURN)
4050c0df 282#define NORETURN __attribute__((__noreturn__))
18660bc9 283#define NORETURN_PTR __attribute__((__noreturn__))
aba7dea8
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284#elif defined(_MSC_VER)
285#define NORETURN __declspec(noreturn)
286#define NORETURN_PTR
4050c0df
JH
287#else
288#define NORETURN
18660bc9 289#define NORETURN_PTR
4050c0df
JH
290#ifndef __attribute__
291#define __attribute__(x)
292#endif
293#endif
294
9fe3edc4
RJ
295/* The sentinel attribute is valid from gcc version 4.0 */
296#if defined(__GNUC__) && (__GNUC__ >= 4)
297#define LAST_ARG_MUST_BE_NULL __attribute__((sentinel))
298#else
299#define LAST_ARG_MUST_BE_NULL
300#endif
301
51ea5519
NP
302#include "compat/bswap.h"
303
cebcab18 304#include "wildmatch.h"
cebcab18 305
4050c0df 306/* General helper functions */
ebaa79f4 307extern void vreportf(const char *prefix, const char *err, va_list params);
3bc4181f 308extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
a4f3131c 309extern NORETURN void usage(const char *err);
64b1cb74 310extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
a4f3131c
EFL
311extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
312extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0df 313extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
46efd2d9 314extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0df 315
f2be034c
BG
316#ifndef NO_OPENSSL
317#ifdef APPLE_COMMON_CRYPTO
318#include "compat/apple-common-crypto.h"
319#else
320#include <openssl/evp.h>
321#include <openssl/hmac.h>
322#endif /* APPLE_COMMON_CRYPTO */
323#include <openssl/x509v3.h>
324#endif /* NO_OPENSSL */
325
e208f9cc
JK
326/*
327 * Let callers be aware of the constant return value; this can help
9798f7e5
MK
328 * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though,
329 * because some compilers may not support variadic macros. Since we're only
330 * trying to help gcc, anyway, it's OK; other compilers will fall back to
331 * using the function as usual.
e208f9cc 332 */
5ded807f 333#if defined(__GNUC__) && ! defined(__clang__)
9798f7e5 334#define error(...) (error(__VA_ARGS__), -1)
e208f9cc
JK
335#endif
336
18660bc9 337extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
3bc4181f 338extern void set_error_routine(void (*routine)(const char *err, va_list params));
c19a490e 339extern void set_die_is_recursing_routine(int (*routine)(void));
39a3f5ea 340
95662315 341extern int starts_with(const char *str, const char *prefix);
95662315 342extern int ends_with(const char *str, const char *suffix);
698a68be 343
fbca5837
MV
344static inline const char *skip_prefix(const char *str, const char *prefix)
345{
ba399c46
DK
346 do {
347 if (!*prefix)
348 return str;
349 } while (*str++ == *prefix++);
350 return NULL;
fbca5837
MV
351}
352
35480f0b
JK
353/*
354 * If buf ends with suffix, return 1 and subtract the length of the suffix
355 * from *len. Otherwise, return 0 and leave *len untouched.
356 */
357static inline int strip_suffix_mem(const char *buf, size_t *len,
358 const char *suffix)
359{
360 size_t suflen = strlen(suffix);
361 if (*len < suflen || memcmp(buf + (*len - suflen), suffix, suflen))
362 return 0;
363 *len -= suflen;
364 return 1;
365}
366
367/*
368 * If str ends with suffix, return 1 and set *len to the size of the string
369 * without the suffix. Otherwise, return 0 and set *len to the size of the
370 * string.
371 *
372 * Note that we do _not_ NUL-terminate str to the new length.
373 */
374static inline int strip_suffix(const char *str, const char *suffix, size_t *len)
375{
376 *len = strlen(str);
377 return strip_suffix_mem(str, len, suffix);
378}
379
b130a72b 380#if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
4050c0df
JH
381
382#ifndef PROT_READ
383#define PROT_READ 1
384#define PROT_WRITE 2
385#define MAP_PRIVATE 1
4050c0df
JH
386#endif
387
d6779124
SP
388#define mmap git_mmap
389#define munmap git_munmap
390extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
391extern int git_munmap(void *start, size_t length);
4050c0df 392
b130a72b
JL
393#else /* NO_MMAP || USE_WIN32_MMAP */
394
395#include <sys/mman.h>
396
397#endif /* NO_MMAP || USE_WIN32_MMAP */
398
399#ifdef NO_MMAP
400
5faaf246 401/* This value must be multiple of (pagesize * 2) */
8c82534d
SP
402#define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
403
4050c0df
JH
404#else /* NO_MMAP */
405
5faaf246 406/* This value must be multiple of (pagesize * 2) */
22bac0ea
SP
407#define DEFAULT_PACKED_GIT_WINDOW_SIZE \
408 (sizeof(void*) >= 8 \
409 ? 1 * 1024 * 1024 * 1024 \
410 : 32 * 1024 * 1024)
4050c0df
JH
411
412#endif /* NO_MMAP */
413
fcf3a21a
GV
414#ifndef MAP_FAILED
415#define MAP_FAILED ((void *)-1)
416#endif
417
fdb2a2a6
JH
418#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
419#define on_disk_bytes(st) ((st).st_size)
420#else
421#define on_disk_bytes(st) ((st).st_blocks * 512)
422#endif
423
22bac0ea 424#define DEFAULT_PACKED_GIT_LIMIT \
ecaebf4a 425 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
8c82534d 426
6900679c
SH
427#ifdef NO_PREAD
428#define pread git_pread
429extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
430#endif
14086b0a
SP
431/*
432 * Forward decl that will remind us if its twin in cache.h changes.
433 * This function is used in compat/pread.c. But we can't include
434 * cache.h there.
435 */
436extern ssize_t read_in_full(int fd, void *buf, size_t count);
6900679c 437
4050c0df
JH
438#ifdef NO_SETENV
439#define setenv gitsetenv
440extern int gitsetenv(const char *, const char *, int);
441#endif
442
ca5bb5d5
SP
443#ifdef NO_MKDTEMP
444#define mkdtemp gitmkdtemp
445extern char *gitmkdtemp(char *);
446#endif
447
0620b39b
DA
448#ifdef NO_MKSTEMPS
449#define mkstemps gitmkstemps
450extern int gitmkstemps(char *, int);
451#endif
452
731043fd
JR
453#ifdef NO_UNSETENV
454#define unsetenv gitunsetenv
455extern void gitunsetenv(const char *);
456#endif
457
4050c0df
JH
458#ifdef NO_STRCASESTR
459#define strcasestr gitstrcasestr
460extern char *gitstrcasestr(const char *haystack, const char *needle);
461#endif
462
817151e6
PE
463#ifdef NO_STRLCPY
464#define strlcpy gitstrlcpy
465extern size_t gitstrlcpy(char *, const char *, size_t);
466#endif
467
bc6b4f52
JR
468#ifdef NO_STRTOUMAX
469#define strtoumax gitstrtoumax
470extern uintmax_t gitstrtoumax(const char *, char **, int);
97000ba6
JS
471#define strtoimax gitstrtoimax
472extern intmax_t gitstrtoimax(const char *, char **, int);
bc6b4f52
JR
473#endif
474
fa0c87c3
AR
475#ifdef NO_HSTRERROR
476#define hstrerror githstrerror
477extern const char *githstrerror(int herror);
478#endif
479
b21b9f1d
RS
480#ifdef NO_MEMMEM
481#define memmem gitmemmem
482void *gitmemmem(const void *haystack, size_t haystacklen,
483 const void *needle, size_t needlelen);
484#endif
485
40036bed
MK
486#ifdef NO_GETPAGESIZE
487#define getpagesize() sysconf(_SC_PAGESIZE)
488#endif
489
cba22528 490#ifdef FREAD_READS_DIRECTORIES
c5445fe0
JS
491#ifdef fopen
492#undef fopen
493#endif
cba22528
BC
494#define fopen(a,b) git_fopen(a,b)
495extern FILE *git_fopen(const char*, const char*);
496#endif
497
c4582f93 498#ifdef SNPRINTF_RETURNS_BOGUS
ab03803c
BS
499#ifdef snprintf
500#undef snprintf
501#endif
c4582f93
MR
502#define snprintf git_snprintf
503extern int git_snprintf(char *str, size_t maxsize,
504 const char *format, ...);
ab03803c
BS
505#ifdef vsnprintf
506#undef vsnprintf
507#endif
c4582f93
MR
508#define vsnprintf git_vsnprintf
509extern int git_vsnprintf(char *str, size_t maxsize,
510 const char *format, va_list ap);
511#endif
512
726c8ef5
JS
513#ifdef __GLIBC_PREREQ
514#if __GLIBC_PREREQ(2, 1)
515#define HAVE_STRCHRNUL
137c6eaa 516#define HAVE_MEMPCPY
726c8ef5
JS
517#endif
518#endif
519
520#ifndef HAVE_STRCHRNUL
659c69cf 521#define strchrnul gitstrchrnul
9e79f00f
AE
522static inline char *gitstrchrnul(const char *s, int c)
523{
524 while (*s && *s != c)
525 s++;
526 return (char *)s;
527}
659c69cf
RS
528#endif
529
137c6eaa
JN
530#ifndef HAVE_MEMPCPY
531#define mempcpy gitmempcpy
532static inline void *gitmempcpy(void *dest, const void *src, size_t n)
533{
534 return (char *)memcpy(dest, src, n) + n;
535}
536#endif
537
da523cc5
MP
538#ifdef NO_INET_PTON
539int inet_pton(int af, const char *src, void *dst);
540#endif
541
542#ifdef NO_INET_NTOP
543const char *inet_ntop(int af, const void *src, char *dst, size_t size);
544#endif
545
7c3ecb32 546extern void release_pack_memory(size_t);
97bfeb34 547
851c34b0
JS
548typedef void (*try_to_free_t)(size_t);
549extern try_to_free_t set_try_to_free_routine(try_to_free_t);
a9a74636 550
112db553
LT
551extern char *xstrdup(const char *str);
552extern void *xmalloc(size_t size);
5bf9219d 553extern void *xmallocz(size_t size);
112db553
LT
554extern void *xmemdupz(const void *data, size_t len);
555extern char *xstrndup(const char *str, size_t len);
556extern void *xrealloc(void *ptr, size_t size);
557extern void *xcalloc(size_t nmemb, size_t size);
558extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
559extern ssize_t xread(int fd, void *buf, size_t len);
560extern ssize_t xwrite(int fd, const void *buf, size_t len);
9aa91af0 561extern ssize_t xpread(int fd, void *buf, size_t len, off_t offset);
112db553
LT
562extern int xdup(int fd);
563extern FILE *xfdopen(int fd, const char *mode);
564extern int xmkstemp(char *template);
463db9b1 565extern int xmkstemp_mode(char *template, int mode);
6e180cdc 566extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
8640d496 567extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1);
f21a47b2 568
dc49cd76
SP
569static inline size_t xsize_t(off_t len)
570{
46be82df
TR
571 if (len > (size_t) len)
572 die("Cannot handle files this big");
dc49cd76
SP
573 return (size_t)len;
574}
575
5bb1cda5 576static inline int has_extension(const char *filename, const char *ext)
83a2b841 577{
5bb1cda5
RS
578 size_t len = strlen(filename);
579 size_t extlen = strlen(ext);
83a2b841
RS
580 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
581}
582
f1589d10
RJ
583/* in ctype.c, for kwset users */
584extern const char tolower_trans_tbl[256];
585
4050c0df 586/* Sane ctype - no locale, and works with signed chars */
c2e9364a 587#undef isascii
4050c0df
JH
588#undef isspace
589#undef isdigit
590#undef isalpha
591#undef isalnum
0fcec2ce 592#undef isprint
43ccdf56
NK
593#undef islower
594#undef isupper
4050c0df
JH
595#undef tolower
596#undef toupper
1c149ab2
NTND
597#undef iscntrl
598#undef ispunct
599#undef isxdigit
2adf7247 600
ca5ab7d1 601extern const unsigned char sane_ctype[256];
4050c0df
JH
602#define GIT_SPACE 0x01
603#define GIT_DIGIT 0x02
604#define GIT_ALPHA 0x04
8cc32992 605#define GIT_GLOB_SPECIAL 0x08
f9b7cce6 606#define GIT_REGEX_SPECIAL 0x10
2f6c9760 607#define GIT_PATHSPEC_MAGIC 0x20
1c149ab2
NTND
608#define GIT_CNTRL 0x40
609#define GIT_PUNCT 0x80
4050c0df 610#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
c2e9364a 611#define isascii(x) (((x) & ~0x7f) == 0)
4050c0df
JH
612#define isspace(x) sane_istest(x,GIT_SPACE)
613#define isdigit(x) sane_istest(x,GIT_DIGIT)
614#define isalpha(x) sane_istest(x,GIT_ALPHA)
615#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
0fcec2ce 616#define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
43ccdf56
NK
617#define islower(x) sane_iscase(x, 1)
618#define isupper(x) sane_iscase(x, 0)
8cc32992 619#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
f9b7cce6 620#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
1c149ab2
NTND
621#define iscntrl(x) (sane_istest(x,GIT_CNTRL))
622#define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
623 GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
624#define isxdigit(x) (hexval_table[x] != -1)
4050c0df
JH
625#define tolower(x) sane_case((unsigned char)(x), 0x20)
626#define toupper(x) sane_case((unsigned char)(x), 0)
2f6c9760 627#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
4050c0df
JH
628
629static inline int sane_case(int x, int high)
630{
631 if (sane_istest(x, GIT_ALPHA))
632 x = (x & ~0x20) | high;
633 return x;
634}
635
43ccdf56
NK
636static inline int sane_iscase(int x, int is_lower)
637{
638 if (!sane_istest(x, GIT_ALPHA))
639 return 0;
640
641 if (is_lower)
642 return (x & 0x20) != 0;
643 else
644 return (x & 0x20) == 0;
645}
646
6aead43d
JM
647static inline int strtoul_ui(char const *s, int base, unsigned int *result)
648{
649 unsigned long ul;
650 char *p;
651
652 errno = 0;
653 ul = strtoul(s, &p, base);
654 if (errno || *p || p == s || (unsigned int) ul != ul)
655 return -1;
656 *result = ul;
657 return 0;
658}
659
7791ecbc
JH
660static inline int strtol_i(char const *s, int base, int *result)
661{
662 long ul;
663 char *p;
664
665 errno = 0;
666 ul = strtol(s, &p, base);
667 if (errno || *p || p == s || (int) ul != ul)
668 return -1;
669 *result = ul;
670 return 0;
671}
672
43fe901b
BD
673#ifdef INTERNAL_QSORT
674void git_qsort(void *base, size_t nmemb, size_t size,
675 int(*compar)(const void *, const void *));
676#define qsort git_qsort
677#endif
678
81a24b52
AR
679#ifndef DIR_HAS_BSD_GROUP_SEMANTICS
680# define FORCE_DIR_SET_GID S_ISGID
681#else
682# define FORCE_DIR_SET_GID 0
683#endif
684
c06ff490
KB
685#ifdef NO_NSEC
686#undef USE_NSEC
687#define ST_CTIME_NSEC(st) 0
688#define ST_MTIME_NSEC(st) 0
689#else
c567383b
BG
690#ifdef USE_ST_TIMESPEC
691#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
692#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
693#else
c06ff490
KB
694#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
695#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
696#endif
c567383b 697#endif
c06ff490 698
34779c53
JS
699#ifdef UNRELIABLE_FSTAT
700#define fstat_is_reliable() 0
701#else
702#define fstat_is_reliable() 1
703#endif
704
ab8632ae 705#ifndef va_copy
26db0f2e
JN
706/*
707 * Since an obvious implementation of va_list would be to make it a
708 * pointer into the stack frame, a simple assignment will work on
709 * many systems. But let's try to be more portable.
710 */
711#ifdef __va_copy
712#define va_copy(dst, src) __va_copy(dst, src)
713#else
714#define va_copy(dst, src) ((dst) = (src))
715#endif
ab8632ae
JK
716#endif
717
fc71db39
AR
718/*
719 * Preserves errno, prints a message, but gives no warning for ENOENT.
720 * Always returns the return value of unlink(2).
721 */
722int unlink_or_warn(const char *path);
d1723296
PC
723/*
724 * Likewise for rmdir(2).
725 */
726int rmdir_or_warn(const char *path);
80d706af
PC
727/*
728 * Calls the correct function out of {unlink,rmdir}_or_warn based on
729 * the supplied file mode.
730 */
731int remove_or_warn(unsigned int mode, const char *path);
fc71db39 732
e5c52c98
JN
733/*
734 * Call access(2), but warn for any error except "missing file"
735 * (ENOENT or ENOTDIR).
736 */
4698c8fe
JN
737#define ACCESS_EACCES_OK (1U << 0)
738int access_or_warn(const char *path, int mode, unsigned flag);
739int access_or_die(const char *path, int mode, unsigned flag);
ba8bd830 740
55b38a48
JH
741/* Warn on an inaccessible file that ought to be accessible */
742void warn_on_inaccessible(const char *path);
743
2f705875
JK
744/* Get the passwd entry for the UID of the current process. */
745struct passwd *xgetpwuid_self(void);
746
66547547
JK
747#ifdef GMTIME_UNRELIABLE_ERRORS
748struct tm *git_gmtime(const time_t *);
749struct tm *git_gmtime_r(const time_t *, struct tm *);
750#define gmtime git_gmtime
751#define gmtime_r git_gmtime_r
752#endif
753
4050c0df 754#endif