Makefile: Fix APPLE_COMMON_CRYPTO with BLK_SHA1
[git/git.git] / git-compat-util.h
CommitLineData
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 88#ifdef WIN32 /* Both MinGW and MSVC */
41f29991
RJ
89# if defined (_MSC_VER)
90# define _WIN32_WINNT 0x0502
91# endif
435bdf8c
MSO
92#define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
93#include <winsock2.h>
94#include <windows.h>
95#endif
96
4050c0df
JH
97#include <unistd.h>
98#include <stdio.h>
99#include <sys/stat.h>
100#include <fcntl.h>
101#include <stddef.h>
102#include <stdlib.h>
103#include <stdarg.h>
104#include <string.h>
b3e103da 105#ifdef HAVE_STRINGS_H
6c109904
JS
106#include <strings.h> /* for strcasecmp() */
107#endif
4050c0df
JH
108#include <errno.h>
109#include <limits.h>
b2d05e06 110#ifdef NEEDS_SYS_PARAM_H
4050c0df 111#include <sys/param.h>
6ede7205 112#endif
4050c0df
JH
113#include <sys/types.h>
114#include <dirent.h>
85023577
JH
115#include <sys/time.h>
116#include <time.h>
117#include <signal.h>
cebcab18 118#ifndef USE_WILDMATCH
85023577 119#include <fnmatch.h>
cebcab18 120#endif
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
3ef2bcad
JH
130
131#ifndef NO_OPENSSL
132#ifdef APPLE_COMMON_CRYPTO
133#include "compat/apple-common-crypto.h"
134#else
135#include <openssl/evp.h>
136#include <openssl/hmac.h>
137#endif /* APPLE_COMMON_CRYPTO */
138#include <openssl/x509v3.h>
139#endif /* NO_OPENSSL */
140
cfc755d3
VR
141#if defined(__MINGW32__)
142/* pull in Windows compatibility stuff */
143#include "compat/mingw.h"
144#elif defined(_MSC_VER)
145#include "compat/msvc.h"
146#else
f4626df5 147#include <sys/wait.h>
ebae9ff9 148#include <sys/resource.h>
85023577 149#include <sys/socket.h>
80bbe72b 150#include <sys/ioctl.h>
eb80042c 151#include <termios.h>
2600973f 152#ifndef NO_SYS_SELECT_H
80bbe72b 153#include <sys/select.h>
2600973f 154#endif
85023577
JH
155#include <netinet/in.h>
156#include <netinet/tcp.h>
157#include <arpa/inet.h>
158#include <netdb.h>
159#include <pwd.h>
e2770979 160#include <sys/un.h>
2844923d 161#ifndef NO_INTTYPES_H
007e2ba6 162#include <inttypes.h>
2844923d
MD
163#else
164#include <stdint.h>
165#endif
6c109904
JS
166#ifdef NO_INTPTR_T
167/*
168 * On I16LP32, ILP32 and LP64 "long" is the save bet, however
169 * on LLP86, IL33LLP64 and P64 it needs to be "long long",
170 * while on IP16 and IP16L32 it is "int" (resp. "short")
171 * Size needs to match (or exceed) 'sizeof(void *)'.
172 * We can't take "long long" here as not everybody has it.
173 */
174typedef long intptr_t;
175typedef unsigned long uintptr_t;
176#endif
0117c2f0 177int get_st_mode_bits(const char *path, int *mode);
41b20017
RJ
178#if defined(__CYGWIN__)
179#undef _XOPEN_SOURCE
180#include <grp.h>
181#define _XOPEN_SOURCE 600
adbc0b6b 182#include "compat/cygwin.h"
41b20017 183#else
fb952206 184#undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
85023577 185#include <grp.h>
fb952206 186#define _ALL_SOURCE 1
41b20017 187#endif
d75f8e61 188#endif
85023577 189
76759c7d
TB
190/* used on Mac OS X */
191#ifdef PRECOMPOSE_UNICODE
192#include "compat/precompose_utf8.h"
193#else
194#define precompose_str(in,i_nfd2nfc)
195#define precompose_argv(c,v)
196#define probe_utf8_pathname_composition(a,b)
197#endif
198
0539ecfd
JS
199#ifdef MKDIR_WO_TRAILING_SLASH
200#define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
201extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
202#endif
203
7f9e848c
JS
204#ifdef NO_STRUCT_ITIMERVAL
205struct itimerval {
206 struct timeval it_interval;
207 struct timeval it_value;
208}
209#endif
210
211#ifdef NO_SETITIMER
212#define setitimer(which,value,ovalue)
213#endif
214
e1c06886
DA
215#ifndef NO_LIBGEN_H
216#include <libgen.h>
217#else
218#define basename gitbasename
219extern char *gitbasename(char *);
220#endif
221
85023577
JH
222#ifndef NO_ICONV
223#include <iconv.h>
224#endif
4050c0df 225
684ec6c6
RS
226#ifndef NO_OPENSSL
227#include <openssl/ssl.h>
228#include <openssl/err.h>
229#endif
230
3b130ade
DM
231/* On most systems <netdb.h> would have given us this, but
232 * not on some systems (e.g. z/OS).
233 */
234#ifndef NI_MAXHOST
235#define NI_MAXHOST 1025
236#endif
237
238#ifndef NI_MAXSERV
239#define NI_MAXSERV 32
240#endif
241
d0c2449f
JH
242/* On most systems <limits.h> would have given us this, but
243 * not on some systems (e.g. GNU/Hurd).
244 */
245#ifndef PATH_MAX
246#define PATH_MAX 4096
247#endif
248
c4001d92
SP
249#ifndef PRIuMAX
250#define PRIuMAX "llu"
251#endif
252
607bb3ff
JS
253#ifndef PRIu32
254#define PRIu32 "u"
255#endif
256
257#ifndef PRIx32
258#define PRIx32 "x"
259#endif
260
5418d96d
RJ
261#ifndef PRIo32
262#define PRIo32 "o"
263#endif
264
80ba074f
JS
265#ifndef PATH_SEP
266#define PATH_SEP ':'
267#endif
268
cb6a22c0
CW
269#ifdef HAVE_PATHS_H
270#include <paths.h>
271#endif
272#ifndef _PATH_DEFPATH
273#define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
274#endif
275
23326d14
JS
276#ifndef STRIP_EXTENSION
277#define STRIP_EXTENSION ""
278#endif
279
25fe217b
JS
280#ifndef has_dos_drive_prefix
281#define has_dos_drive_prefix(path) 0
282#endif
283
284#ifndef is_dir_sep
285#define is_dir_sep(c) ((c) == '/')
286#endif
287
d1c69255
TN
288#ifndef find_last_dir_sep
289#define find_last_dir_sep(path) strrchr(path, '/')
290#endif
291
e4ac953b 292#if defined(__HP_cc) && (__HP_cc >= 61000)
b6ab349b
MR
293#define NORETURN __attribute__((noreturn))
294#define NORETURN_PTR
6520c846 295#elif defined(__GNUC__) && !defined(NO_NORETURN)
4050c0df 296#define NORETURN __attribute__((__noreturn__))
18660bc9 297#define NORETURN_PTR __attribute__((__noreturn__))
aba7dea8
RJ
298#elif defined(_MSC_VER)
299#define NORETURN __declspec(noreturn)
300#define NORETURN_PTR
4050c0df
JH
301#else
302#define NORETURN
18660bc9 303#define NORETURN_PTR
4050c0df
JH
304#ifndef __attribute__
305#define __attribute__(x)
306#endif
307#endif
308
51ea5519
NP
309#include "compat/bswap.h"
310
cebcab18
NTND
311#ifdef USE_WILDMATCH
312#include "wildmatch.h"
313#define FNM_PATHNAME WM_PATHNAME
314#define FNM_CASEFOLD WM_CASEFOLD
315#define FNM_NOMATCH WM_NOMATCH
316static inline int fnmatch(const char *pattern, const char *string, int flags)
317{
318 return wildmatch(pattern, string, flags, NULL);
319}
320#endif
321
4050c0df 322/* General helper functions */
ebaa79f4 323extern void vreportf(const char *prefix, const char *err, va_list params);
3bc4181f 324extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
a4f3131c 325extern NORETURN void usage(const char *err);
64b1cb74 326extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
a4f3131c
EFL
327extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
328extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0df 329extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
46efd2d9 330extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0df 331
e208f9cc
JK
332/*
333 * Let callers be aware of the constant return value; this can help
9798f7e5
MK
334 * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though,
335 * because some compilers may not support variadic macros. Since we're only
336 * trying to help gcc, anyway, it's OK; other compilers will fall back to
337 * using the function as usual.
e208f9cc 338 */
5ded807f 339#if defined(__GNUC__) && ! defined(__clang__)
9798f7e5 340#define error(...) (error(__VA_ARGS__), -1)
e208f9cc
JK
341#endif
342
18660bc9 343extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
3bc4181f 344extern void set_error_routine(void (*routine)(const char *err, va_list params));
c19a490e 345extern void set_die_is_recursing_routine(int (*routine)(void));
39a3f5ea 346
698a68be 347extern int prefixcmp(const char *str, const char *prefix);
8cc5b290 348extern int suffixcmp(const char *str, const char *suffix);
698a68be 349
fbca5837
MV
350static inline const char *skip_prefix(const char *str, const char *prefix)
351{
352 size_t len = strlen(prefix);
353 return strncmp(str, prefix, len) ? NULL : str + len;
354}
355
b130a72b 356#if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
4050c0df
JH
357
358#ifndef PROT_READ
359#define PROT_READ 1
360#define PROT_WRITE 2
361#define MAP_PRIVATE 1
4050c0df
JH
362#endif
363
d6779124
SP
364#define mmap git_mmap
365#define munmap git_munmap
366extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
367extern int git_munmap(void *start, size_t length);
4050c0df 368
b130a72b
JL
369#else /* NO_MMAP || USE_WIN32_MMAP */
370
371#include <sys/mman.h>
372
373#endif /* NO_MMAP || USE_WIN32_MMAP */
374
375#ifdef NO_MMAP
376
5faaf246 377/* This value must be multiple of (pagesize * 2) */
8c82534d
SP
378#define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
379
4050c0df
JH
380#else /* NO_MMAP */
381
5faaf246 382/* This value must be multiple of (pagesize * 2) */
22bac0ea
SP
383#define DEFAULT_PACKED_GIT_WINDOW_SIZE \
384 (sizeof(void*) >= 8 \
385 ? 1 * 1024 * 1024 * 1024 \
386 : 32 * 1024 * 1024)
4050c0df
JH
387
388#endif /* NO_MMAP */
389
fcf3a21a
GV
390#ifndef MAP_FAILED
391#define MAP_FAILED ((void *)-1)
392#endif
393
fdb2a2a6
JH
394#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
395#define on_disk_bytes(st) ((st).st_size)
396#else
397#define on_disk_bytes(st) ((st).st_blocks * 512)
398#endif
399
22bac0ea 400#define DEFAULT_PACKED_GIT_LIMIT \
ecaebf4a 401 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
8c82534d 402
6900679c
SH
403#ifdef NO_PREAD
404#define pread git_pread
405extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
406#endif
14086b0a
SP
407/*
408 * Forward decl that will remind us if its twin in cache.h changes.
409 * This function is used in compat/pread.c. But we can't include
410 * cache.h there.
411 */
412extern ssize_t read_in_full(int fd, void *buf, size_t count);
6900679c 413
4050c0df
JH
414#ifdef NO_SETENV
415#define setenv gitsetenv
416extern int gitsetenv(const char *, const char *, int);
417#endif
418
ca5bb5d5
SP
419#ifdef NO_MKDTEMP
420#define mkdtemp gitmkdtemp
421extern char *gitmkdtemp(char *);
422#endif
423
0620b39b
DA
424#ifdef NO_MKSTEMPS
425#define mkstemps gitmkstemps
426extern int gitmkstemps(char *, int);
427#endif
428
731043fd
JR
429#ifdef NO_UNSETENV
430#define unsetenv gitunsetenv
431extern void gitunsetenv(const char *);
432#endif
433
4050c0df
JH
434#ifdef NO_STRCASESTR
435#define strcasestr gitstrcasestr
436extern char *gitstrcasestr(const char *haystack, const char *needle);
437#endif
438
817151e6
PE
439#ifdef NO_STRLCPY
440#define strlcpy gitstrlcpy
441extern size_t gitstrlcpy(char *, const char *, size_t);
442#endif
443
bc6b4f52
JR
444#ifdef NO_STRTOUMAX
445#define strtoumax gitstrtoumax
446extern uintmax_t gitstrtoumax(const char *, char **, int);
97000ba6
JS
447#define strtoimax gitstrtoimax
448extern intmax_t gitstrtoimax(const char *, char **, int);
bc6b4f52
JR
449#endif
450
fa0c87c3
AR
451#ifdef NO_HSTRERROR
452#define hstrerror githstrerror
453extern const char *githstrerror(int herror);
454#endif
455
b21b9f1d
RS
456#ifdef NO_MEMMEM
457#define memmem gitmemmem
458void *gitmemmem(const void *haystack, size_t haystacklen,
459 const void *needle, size_t needlelen);
460#endif
461
40036bed
MK
462#ifdef NO_GETPAGESIZE
463#define getpagesize() sysconf(_SC_PAGESIZE)
464#endif
465
cba22528 466#ifdef FREAD_READS_DIRECTORIES
c5445fe0
JS
467#ifdef fopen
468#undef fopen
469#endif
cba22528
BC
470#define fopen(a,b) git_fopen(a,b)
471extern FILE *git_fopen(const char*, const char*);
472#endif
473
c4582f93
MR
474#ifdef SNPRINTF_RETURNS_BOGUS
475#define snprintf git_snprintf
476extern int git_snprintf(char *str, size_t maxsize,
477 const char *format, ...);
478#define vsnprintf git_vsnprintf
479extern int git_vsnprintf(char *str, size_t maxsize,
480 const char *format, va_list ap);
481#endif
482
726c8ef5
JS
483#ifdef __GLIBC_PREREQ
484#if __GLIBC_PREREQ(2, 1)
485#define HAVE_STRCHRNUL
137c6eaa 486#define HAVE_MEMPCPY
726c8ef5
JS
487#endif
488#endif
489
490#ifndef HAVE_STRCHRNUL
659c69cf 491#define strchrnul gitstrchrnul
9e79f00f
AE
492static inline char *gitstrchrnul(const char *s, int c)
493{
494 while (*s && *s != c)
495 s++;
496 return (char *)s;
497}
659c69cf
RS
498#endif
499
137c6eaa
JN
500#ifndef HAVE_MEMPCPY
501#define mempcpy gitmempcpy
502static inline void *gitmempcpy(void *dest, const void *src, size_t n)
503{
504 return (char *)memcpy(dest, src, n) + n;
505}
506#endif
507
da523cc5
MP
508#ifdef NO_INET_PTON
509int inet_pton(int af, const char *src, void *dst);
510#endif
511
512#ifdef NO_INET_NTOP
513const char *inet_ntop(int af, const void *src, char *dst, size_t size);
514#endif
515
d1efefa4 516extern void release_pack_memory(size_t, int);
97bfeb34 517
851c34b0
JS
518typedef void (*try_to_free_t)(size_t);
519extern try_to_free_t set_try_to_free_routine(try_to_free_t);
a9a74636 520
112db553
LT
521extern char *xstrdup(const char *str);
522extern void *xmalloc(size_t size);
5bf9219d 523extern void *xmallocz(size_t size);
112db553
LT
524extern void *xmemdupz(const void *data, size_t len);
525extern char *xstrndup(const char *str, size_t len);
526extern void *xrealloc(void *ptr, size_t size);
527extern void *xcalloc(size_t nmemb, size_t size);
528extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
529extern ssize_t xread(int fd, void *buf, size_t len);
530extern ssize_t xwrite(int fd, const void *buf, size_t len);
531extern int xdup(int fd);
532extern FILE *xfdopen(int fd, const char *mode);
533extern int xmkstemp(char *template);
463db9b1 534extern int xmkstemp_mode(char *template, int mode);
6e180cdc
JH
535extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
536extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
f21a47b2 537
dc49cd76
SP
538static inline size_t xsize_t(off_t len)
539{
46be82df
TR
540 if (len > (size_t) len)
541 die("Cannot handle files this big");
dc49cd76
SP
542 return (size_t)len;
543}
544
5bb1cda5 545static inline int has_extension(const char *filename, const char *ext)
83a2b841 546{
5bb1cda5
RS
547 size_t len = strlen(filename);
548 size_t extlen = strlen(ext);
83a2b841
RS
549 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
550}
551
f1589d10
RJ
552/* in ctype.c, for kwset users */
553extern const char tolower_trans_tbl[256];
554
4050c0df 555/* Sane ctype - no locale, and works with signed chars */
c2e9364a 556#undef isascii
4050c0df
JH
557#undef isspace
558#undef isdigit
559#undef isalpha
560#undef isalnum
0fcec2ce 561#undef isprint
43ccdf56
NK
562#undef islower
563#undef isupper
4050c0df
JH
564#undef tolower
565#undef toupper
1c149ab2
NTND
566#undef iscntrl
567#undef ispunct
568#undef isxdigit
2adf7247 569
ca5ab7d1 570extern const unsigned char sane_ctype[256];
4050c0df
JH
571#define GIT_SPACE 0x01
572#define GIT_DIGIT 0x02
573#define GIT_ALPHA 0x04
8cc32992 574#define GIT_GLOB_SPECIAL 0x08
f9b7cce6 575#define GIT_REGEX_SPECIAL 0x10
2f6c9760 576#define GIT_PATHSPEC_MAGIC 0x20
1c149ab2
NTND
577#define GIT_CNTRL 0x40
578#define GIT_PUNCT 0x80
4050c0df 579#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
c2e9364a 580#define isascii(x) (((x) & ~0x7f) == 0)
4050c0df
JH
581#define isspace(x) sane_istest(x,GIT_SPACE)
582#define isdigit(x) sane_istest(x,GIT_DIGIT)
583#define isalpha(x) sane_istest(x,GIT_ALPHA)
584#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
0fcec2ce 585#define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
43ccdf56
NK
586#define islower(x) sane_iscase(x, 1)
587#define isupper(x) sane_iscase(x, 0)
8cc32992 588#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
f9b7cce6 589#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
1c149ab2
NTND
590#define iscntrl(x) (sane_istest(x,GIT_CNTRL))
591#define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
592 GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
593#define isxdigit(x) (hexval_table[x] != -1)
4050c0df
JH
594#define tolower(x) sane_case((unsigned char)(x), 0x20)
595#define toupper(x) sane_case((unsigned char)(x), 0)
2f6c9760 596#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
4050c0df
JH
597
598static inline int sane_case(int x, int high)
599{
600 if (sane_istest(x, GIT_ALPHA))
601 x = (x & ~0x20) | high;
602 return x;
603}
604
43ccdf56
NK
605static inline int sane_iscase(int x, int is_lower)
606{
607 if (!sane_istest(x, GIT_ALPHA))
608 return 0;
609
610 if (is_lower)
611 return (x & 0x20) != 0;
612 else
613 return (x & 0x20) == 0;
614}
615
6aead43d
JM
616static inline int strtoul_ui(char const *s, int base, unsigned int *result)
617{
618 unsigned long ul;
619 char *p;
620
621 errno = 0;
622 ul = strtoul(s, &p, base);
623 if (errno || *p || p == s || (unsigned int) ul != ul)
624 return -1;
625 *result = ul;
626 return 0;
627}
628
7791ecbc
JH
629static inline int strtol_i(char const *s, int base, int *result)
630{
631 long ul;
632 char *p;
633
634 errno = 0;
635 ul = strtol(s, &p, base);
636 if (errno || *p || p == s || (int) ul != ul)
637 return -1;
638 *result = ul;
639 return 0;
640}
641
43fe901b
BD
642#ifdef INTERNAL_QSORT
643void git_qsort(void *base, size_t nmemb, size_t size,
644 int(*compar)(const void *, const void *));
645#define qsort git_qsort
646#endif
647
81a24b52
AR
648#ifndef DIR_HAS_BSD_GROUP_SEMANTICS
649# define FORCE_DIR_SET_GID S_ISGID
650#else
651# define FORCE_DIR_SET_GID 0
652#endif
653
c06ff490
KB
654#ifdef NO_NSEC
655#undef USE_NSEC
656#define ST_CTIME_NSEC(st) 0
657#define ST_MTIME_NSEC(st) 0
658#else
c567383b
BG
659#ifdef USE_ST_TIMESPEC
660#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
661#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
662#else
c06ff490
KB
663#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
664#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
665#endif
c567383b 666#endif
c06ff490 667
34779c53
JS
668#ifdef UNRELIABLE_FSTAT
669#define fstat_is_reliable() 0
670#else
671#define fstat_is_reliable() 1
672#endif
673
ab8632ae 674#ifndef va_copy
26db0f2e
JN
675/*
676 * Since an obvious implementation of va_list would be to make it a
677 * pointer into the stack frame, a simple assignment will work on
678 * many systems. But let's try to be more portable.
679 */
680#ifdef __va_copy
681#define va_copy(dst, src) __va_copy(dst, src)
682#else
683#define va_copy(dst, src) ((dst) = (src))
684#endif
ab8632ae
JK
685#endif
686
fc71db39
AR
687/*
688 * Preserves errno, prints a message, but gives no warning for ENOENT.
689 * Always returns the return value of unlink(2).
690 */
691int unlink_or_warn(const char *path);
d1723296
PC
692/*
693 * Likewise for rmdir(2).
694 */
695int rmdir_or_warn(const char *path);
80d706af
PC
696/*
697 * Calls the correct function out of {unlink,rmdir}_or_warn based on
698 * the supplied file mode.
699 */
700int remove_or_warn(unsigned int mode, const char *path);
fc71db39 701
e5c52c98
JN
702/*
703 * Call access(2), but warn for any error except "missing file"
704 * (ENOENT or ENOTDIR).
705 */
ba8bd830 706int access_or_warn(const char *path, int mode);
96b9e0e3 707int access_or_die(const char *path, int mode);
ba8bd830 708
55b38a48
JH
709/* Warn on an inaccessible file that ought to be accessible */
710void warn_on_inaccessible(const char *path);
711
2f705875
JK
712/* Get the passwd entry for the UID of the current process. */
713struct passwd *xgetpwuid_self(void);
714
4050c0df 715#endif