sha1_file: replace PATH_MAX buffer with strbuf in prepare_packed_git_one()
[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__) && \
92164af9 78 !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__)
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
380395d0 88#if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */
8453c125 89# if defined (_MSC_VER) && !defined(_WIN32_WINNT)
41f29991
RJ
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>
380395d0 95#define GIT_WINDOWS_NATIVE
435bdf8c
MSO
96#endif
97
4050c0df
JH
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
6c109904
JS
107#include <strings.h> /* for strcasecmp() */
108#endif
4050c0df
JH
109#include <errno.h>
110#include <limits.h>
b2d05e06 111#ifdef NEEDS_SYS_PARAM_H
4050c0df 112#include <sys/param.h>
6ede7205 113#endif
4050c0df
JH
114#include <sys/types.h>
115#include <dirent.h>
85023577
JH
116#include <sys/time.h>
117#include <time.h>
118#include <signal.h>
f4626df5
JS
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
cfc755d3
VR
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
JH
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
JS
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
RJ
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
JS
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
7f9e848c
JS
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
JH
208#ifndef NO_ICONV
209#include <iconv.h>
210#endif
4050c0df 211
684ec6c6
RS
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
SP
235#ifndef PRIuMAX
236#define PRIuMAX "llu"
237#endif
238
607bb3ff
JS
239#ifndef PRIu32
240#define PRIu32 "u"
241#endif
242
243#ifndef PRIx32
244#define PRIx32 "x"
245#endif
246
5418d96d
RJ
247#ifndef PRIo32
248#define PRIo32 "o"
249#endif
250
80ba074f
JS
251#ifndef PATH_SEP
252#define PATH_SEP ':'
253#endif
254
cb6a22c0
CW
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
RJ
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
b130a72b 353#if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
4050c0df
JH
354
355#ifndef PROT_READ
356#define PROT_READ 1
357#define PROT_WRITE 2
358#define MAP_PRIVATE 1
4050c0df
JH
359#endif
360
d6779124
SP
361#define mmap git_mmap
362#define munmap git_munmap
363extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
364extern int git_munmap(void *start, size_t length);
4050c0df 365
b130a72b
JL
366#else /* NO_MMAP || USE_WIN32_MMAP */
367
368#include <sys/mman.h>
369
370#endif /* NO_MMAP || USE_WIN32_MMAP */
371
372#ifdef NO_MMAP
373
5faaf246 374/* This value must be multiple of (pagesize * 2) */
8c82534d
SP
375#define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
376
4050c0df
JH
377#else /* NO_MMAP */
378
5faaf246 379/* This value must be multiple of (pagesize * 2) */
22bac0ea
SP
380#define DEFAULT_PACKED_GIT_WINDOW_SIZE \
381 (sizeof(void*) >= 8 \
382 ? 1 * 1024 * 1024 * 1024 \
383 : 32 * 1024 * 1024)
4050c0df
JH
384
385#endif /* NO_MMAP */
386
fcf3a21a
GV
387#ifndef MAP_FAILED
388#define MAP_FAILED ((void *)-1)
389#endif
390
fdb2a2a6
JH
391#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
392#define on_disk_bytes(st) ((st).st_size)
393#else
394#define on_disk_bytes(st) ((st).st_blocks * 512)
395#endif
396
22bac0ea 397#define DEFAULT_PACKED_GIT_LIMIT \
ecaebf4a 398 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
8c82534d 399
6900679c
SH
400#ifdef NO_PREAD
401#define pread git_pread
402extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
403#endif
14086b0a
SP
404/*
405 * Forward decl that will remind us if its twin in cache.h changes.
406 * This function is used in compat/pread.c. But we can't include
407 * cache.h there.
408 */
409extern ssize_t read_in_full(int fd, void *buf, size_t count);
6900679c 410
4050c0df
JH
411#ifdef NO_SETENV
412#define setenv gitsetenv
413extern int gitsetenv(const char *, const char *, int);
414#endif
415
ca5bb5d5
SP
416#ifdef NO_MKDTEMP
417#define mkdtemp gitmkdtemp
418extern char *gitmkdtemp(char *);
419#endif
420
0620b39b
DA
421#ifdef NO_MKSTEMPS
422#define mkstemps gitmkstemps
423extern int gitmkstemps(char *, int);
424#endif
425
731043fd
JR
426#ifdef NO_UNSETENV
427#define unsetenv gitunsetenv
428extern void gitunsetenv(const char *);
429#endif
430
4050c0df
JH
431#ifdef NO_STRCASESTR
432#define strcasestr gitstrcasestr
433extern char *gitstrcasestr(const char *haystack, const char *needle);
434#endif
435
817151e6
PE
436#ifdef NO_STRLCPY
437#define strlcpy gitstrlcpy
438extern size_t gitstrlcpy(char *, const char *, size_t);
439#endif
440
bc6b4f52
JR
441#ifdef NO_STRTOUMAX
442#define strtoumax gitstrtoumax
443extern uintmax_t gitstrtoumax(const char *, char **, int);
97000ba6
JS
444#define strtoimax gitstrtoimax
445extern intmax_t gitstrtoimax(const char *, char **, int);
bc6b4f52
JR
446#endif
447
fa0c87c3
AR
448#ifdef NO_HSTRERROR
449#define hstrerror githstrerror
450extern const char *githstrerror(int herror);
451#endif
452
b21b9f1d
RS
453#ifdef NO_MEMMEM
454#define memmem gitmemmem
455void *gitmemmem(const void *haystack, size_t haystacklen,
456 const void *needle, size_t needlelen);
457#endif
458
40036bed
MK
459#ifdef NO_GETPAGESIZE
460#define getpagesize() sysconf(_SC_PAGESIZE)
461#endif
462
cba22528 463#ifdef FREAD_READS_DIRECTORIES
c5445fe0
JS
464#ifdef fopen
465#undef fopen
466#endif
cba22528
BC
467#define fopen(a,b) git_fopen(a,b)
468extern FILE *git_fopen(const char*, const char*);
469#endif
470
c4582f93 471#ifdef SNPRINTF_RETURNS_BOGUS
ab03803c
BS
472#ifdef snprintf
473#undef snprintf
474#endif
c4582f93
MR
475#define snprintf git_snprintf
476extern int git_snprintf(char *str, size_t maxsize,
477 const char *format, ...);
ab03803c
BS
478#ifdef vsnprintf
479#undef vsnprintf
480#endif
c4582f93
MR
481#define vsnprintf git_vsnprintf
482extern int git_vsnprintf(char *str, size_t maxsize,
483 const char *format, va_list ap);
484#endif
485
726c8ef5
JS
486#ifdef __GLIBC_PREREQ
487#if __GLIBC_PREREQ(2, 1)
488#define HAVE_STRCHRNUL
137c6eaa 489#define HAVE_MEMPCPY
726c8ef5
JS
490#endif
491#endif
492
493#ifndef HAVE_STRCHRNUL
659c69cf 494#define strchrnul gitstrchrnul
9e79f00f
AE
495static inline char *gitstrchrnul(const char *s, int c)
496{
497 while (*s && *s != c)
498 s++;
499 return (char *)s;
500}
659c69cf
RS
501#endif
502
137c6eaa
JN
503#ifndef HAVE_MEMPCPY
504#define mempcpy gitmempcpy
505static inline void *gitmempcpy(void *dest, const void *src, size_t n)
506{
507 return (char *)memcpy(dest, src, n) + n;
508}
509#endif
510
da523cc5
MP
511#ifdef NO_INET_PTON
512int inet_pton(int af, const char *src, void *dst);
513#endif
514
515#ifdef NO_INET_NTOP
516const char *inet_ntop(int af, const void *src, char *dst, size_t size);
517#endif
518
7c3ecb32 519extern void release_pack_memory(size_t);
97bfeb34 520
851c34b0
JS
521typedef void (*try_to_free_t)(size_t);
522extern try_to_free_t set_try_to_free_routine(try_to_free_t);
a9a74636 523
112db553
LT
524extern char *xstrdup(const char *str);
525extern void *xmalloc(size_t size);
5bf9219d 526extern void *xmallocz(size_t size);
112db553
LT
527extern void *xmemdupz(const void *data, size_t len);
528extern char *xstrndup(const char *str, size_t len);
529extern void *xrealloc(void *ptr, size_t size);
530extern void *xcalloc(size_t nmemb, size_t size);
531extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
532extern ssize_t xread(int fd, void *buf, size_t len);
533extern ssize_t xwrite(int fd, const void *buf, size_t len);
9aa91af0 534extern ssize_t xpread(int fd, void *buf, size_t len, off_t offset);
112db553
LT
535extern int xdup(int fd);
536extern FILE *xfdopen(int fd, const char *mode);
537extern int xmkstemp(char *template);
463db9b1 538extern int xmkstemp_mode(char *template, int mode);
6e180cdc 539extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
8640d496 540extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1);
f21a47b2 541
dc49cd76
SP
542static inline size_t xsize_t(off_t len)
543{
46be82df
TR
544 if (len > (size_t) len)
545 die("Cannot handle files this big");
dc49cd76
SP
546 return (size_t)len;
547}
548
5bb1cda5 549static inline int has_extension(const char *filename, const char *ext)
83a2b841 550{
5bb1cda5
RS
551 size_t len = strlen(filename);
552 size_t extlen = strlen(ext);
83a2b841
RS
553 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
554}
555
f1589d10
RJ
556/* in ctype.c, for kwset users */
557extern const char tolower_trans_tbl[256];
558
4050c0df 559/* Sane ctype - no locale, and works with signed chars */
c2e9364a 560#undef isascii
4050c0df
JH
561#undef isspace
562#undef isdigit
563#undef isalpha
564#undef isalnum
0fcec2ce 565#undef isprint
43ccdf56
NK
566#undef islower
567#undef isupper
4050c0df
JH
568#undef tolower
569#undef toupper
1c149ab2
NTND
570#undef iscntrl
571#undef ispunct
572#undef isxdigit
2adf7247 573
ca5ab7d1 574extern const unsigned char sane_ctype[256];
4050c0df
JH
575#define GIT_SPACE 0x01
576#define GIT_DIGIT 0x02
577#define GIT_ALPHA 0x04
8cc32992 578#define GIT_GLOB_SPECIAL 0x08
f9b7cce6 579#define GIT_REGEX_SPECIAL 0x10
2f6c9760 580#define GIT_PATHSPEC_MAGIC 0x20
1c149ab2
NTND
581#define GIT_CNTRL 0x40
582#define GIT_PUNCT 0x80
4050c0df 583#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
c2e9364a 584#define isascii(x) (((x) & ~0x7f) == 0)
4050c0df
JH
585#define isspace(x) sane_istest(x,GIT_SPACE)
586#define isdigit(x) sane_istest(x,GIT_DIGIT)
587#define isalpha(x) sane_istest(x,GIT_ALPHA)
588#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
0fcec2ce 589#define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
43ccdf56
NK
590#define islower(x) sane_iscase(x, 1)
591#define isupper(x) sane_iscase(x, 0)
8cc32992 592#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
f9b7cce6 593#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
1c149ab2
NTND
594#define iscntrl(x) (sane_istest(x,GIT_CNTRL))
595#define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
596 GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
597#define isxdigit(x) (hexval_table[x] != -1)
4050c0df
JH
598#define tolower(x) sane_case((unsigned char)(x), 0x20)
599#define toupper(x) sane_case((unsigned char)(x), 0)
2f6c9760 600#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
4050c0df
JH
601
602static inline int sane_case(int x, int high)
603{
604 if (sane_istest(x, GIT_ALPHA))
605 x = (x & ~0x20) | high;
606 return x;
607}
608
43ccdf56
NK
609static inline int sane_iscase(int x, int is_lower)
610{
611 if (!sane_istest(x, GIT_ALPHA))
612 return 0;
613
614 if (is_lower)
615 return (x & 0x20) != 0;
616 else
617 return (x & 0x20) == 0;
618}
619
6aead43d
JM
620static inline int strtoul_ui(char const *s, int base, unsigned int *result)
621{
622 unsigned long ul;
623 char *p;
624
625 errno = 0;
626 ul = strtoul(s, &p, base);
627 if (errno || *p || p == s || (unsigned int) ul != ul)
628 return -1;
629 *result = ul;
630 return 0;
631}
632
7791ecbc
JH
633static inline int strtol_i(char const *s, int base, int *result)
634{
635 long ul;
636 char *p;
637
638 errno = 0;
639 ul = strtol(s, &p, base);
640 if (errno || *p || p == s || (int) ul != ul)
641 return -1;
642 *result = ul;
643 return 0;
644}
645
43fe901b
BD
646#ifdef INTERNAL_QSORT
647void git_qsort(void *base, size_t nmemb, size_t size,
648 int(*compar)(const void *, const void *));
649#define qsort git_qsort
650#endif
651
81a24b52
AR
652#ifndef DIR_HAS_BSD_GROUP_SEMANTICS
653# define FORCE_DIR_SET_GID S_ISGID
654#else
655# define FORCE_DIR_SET_GID 0
656#endif
657
c06ff490
KB
658#ifdef NO_NSEC
659#undef USE_NSEC
660#define ST_CTIME_NSEC(st) 0
661#define ST_MTIME_NSEC(st) 0
662#else
c567383b
BG
663#ifdef USE_ST_TIMESPEC
664#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
665#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
666#else
c06ff490
KB
667#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
668#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
669#endif
c567383b 670#endif
c06ff490 671
34779c53
JS
672#ifdef UNRELIABLE_FSTAT
673#define fstat_is_reliable() 0
674#else
675#define fstat_is_reliable() 1
676#endif
677
ab8632ae 678#ifndef va_copy
26db0f2e
JN
679/*
680 * Since an obvious implementation of va_list would be to make it a
681 * pointer into the stack frame, a simple assignment will work on
682 * many systems. But let's try to be more portable.
683 */
684#ifdef __va_copy
685#define va_copy(dst, src) __va_copy(dst, src)
686#else
687#define va_copy(dst, src) ((dst) = (src))
688#endif
ab8632ae
JK
689#endif
690
fc71db39
AR
691/*
692 * Preserves errno, prints a message, but gives no warning for ENOENT.
693 * Always returns the return value of unlink(2).
694 */
695int unlink_or_warn(const char *path);
d1723296
PC
696/*
697 * Likewise for rmdir(2).
698 */
699int rmdir_or_warn(const char *path);
80d706af
PC
700/*
701 * Calls the correct function out of {unlink,rmdir}_or_warn based on
702 * the supplied file mode.
703 */
704int remove_or_warn(unsigned int mode, const char *path);
fc71db39 705
e5c52c98
JN
706/*
707 * Call access(2), but warn for any error except "missing file"
708 * (ENOENT or ENOTDIR).
709 */
4698c8fe
JN
710#define ACCESS_EACCES_OK (1U << 0)
711int access_or_warn(const char *path, int mode, unsigned flag);
712int access_or_die(const char *path, int mode, unsigned flag);
ba8bd830 713
55b38a48
JH
714/* Warn on an inaccessible file that ought to be accessible */
715void warn_on_inaccessible(const char *path);
716
2f705875
JK
717/* Get the passwd entry for the UID of the current process. */
718struct passwd *xgetpwuid_self(void);
719
66547547
JK
720#ifdef GMTIME_UNRELIABLE_ERRORS
721struct tm *git_gmtime(const time_t *);
722struct tm *git_gmtime_r(const time_t *, struct tm *);
723#define gmtime git_gmtime
724#define gmtime_r git_gmtime_r
725#endif
726
4050c0df 727#endif