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4050c0d Clean up compatibility definitions.
Junio C Hamano authored
1 #ifndef GIT_COMPAT_UTIL_H
2 #define GIT_COMPAT_UTIL_H
3
b97e911 @tali Support for large files on 32bit systems.
tali authored
4 #define _FILE_OFFSET_BITS 64
5
8f1d2e6 [PATCH] Compilation: zero-length array declaration.
Junio C Hamano authored
6 #ifndef FLEX_ARRAY
8e97399 @gitster git-compat-util.h: auto-adjust to compiler support of FLEX_ARRAY a bi…
gitster authored
7 /*
8 * See if our compiler is known to support flexible array members.
9 */
203ee91 @drafnel git-compat-util.h: avoid using c99 flex array feature with Sun compil…
drafnel authored
10 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && (!defined(__SUNPRO_C) || (__SUNPRO_C > 0x580))
8e97399 @gitster git-compat-util.h: auto-adjust to compiler support of FLEX_ARRAY a bi…
gitster authored
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
8f1d2e6 [PATCH] Compilation: zero-length array declaration.
Junio C Hamano authored
25 #endif
26 #endif
27
b4f2a6a Use #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
Junio C Hamano authored
28 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
f630cfd @MadCoder refactor: use bitsizeof() instead of 8 * sizeof()
MadCoder authored
29 #define bitsizeof(x) (CHAR_BIT * sizeof(x))
b4f2a6a Use #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
Junio C Hamano authored
30
c03c831 @kusma do not depend on signed integer overflow
kusma authored
31 #define maximum_signed_value_of_type(a) \
32 (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a)))
33
1368f65 @jrn compat: helper for detecting unsigned overflow
jrn authored
34 #define maximum_unsigned_value_of_type(a) \
35 (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a)))
36
c03c831 @kusma do not depend on signed integer overflow
kusma authored
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
1368f65 @jrn compat: helper for detecting unsigned overflow
jrn authored
46 #define unsigned_add_overflows(a, b) \
47 ((b) > maximum_unsigned_value_of_type(a) - (a))
48
8723f21 make overflow test on delta base offset work regardless of variable size
Nicolas Pitre authored
49 #ifdef __GNUC__
50 #define TYPEOF(x) (__typeof__(x))
51 #else
52 #define TYPEOF(x)
53 #endif
54
f630cfd @MadCoder refactor: use bitsizeof() instead of 8 * sizeof()
MadCoder authored
55 #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits))))
db7244b @MadCoder parse-options new features.
MadCoder authored
56 #define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
8723f21 make overflow test on delta base offset work regardless of variable size
Nicolas Pitre authored
57
98cb6f3 @MadCoder janitor: add DIV_ROUND_UP and use it.
MadCoder authored
58 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
59
cf606e3 @awhitcroft git name-rev writes beyond the end of malloc() with large generations
awhitcroft authored
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
4cb18a4 @drafnel git-compat-util.h: tweak the way _XOPEN_SOURCE is set on Solaris
drafnel authored
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
6555b19 Fix _XOPEN_SOURCE problem on DragonFly
YONETANI Tomokazu authored
76 #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
761a889 git-compat-util.h: use apparently more common __sgi macro to detect S…
Gary V. Vaughan authored
77 !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__)
8502357 simplify inclusion of system header files.
Junio C Hamano authored
78 #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
79 #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
c902c9a Fix system header problems on Mac OS X
Terje Sten Bjerkseth authored
80 #endif
fb95220 Set _ALL_SOURCE for AIX, but avoid its struct list.
Jason Riedy authored
81 #define _ALL_SOURCE 1
82 #define _GNU_SOURCE 1
83 #define _BSD_SOURCE 1
9a695fb @prlw1 NetBSD compilation fix
prlw1 authored
84 #define _NETBSD_SOURCE 1
9398b85 git-compat-util.h: adjust for SGI IRIX 6.5
Brandon Casey authored
85 #define _SGI_SOURCE 1
8502357 simplify inclusion of system header files.
Junio C Hamano authored
86
435bdf8 @mstormo Make usage of windows.h lean and mean
mstormo authored
87 #ifdef WIN32 /* Both MinGW and MSVC */
88 #define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
89 #include <winsock2.h>
90 #include <windows.h>
91 #endif
92
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
93 #include <unistd.h>
94 #include <stdio.h>
95 #include <sys/stat.h>
96 #include <fcntl.h>
97 #include <stddef.h>
98 #include <stdlib.h>
99 #include <stdarg.h>
100 #include <string.h>
101 #include <errno.h>
102 #include <limits.h>
103 #include <sys/param.h>
104 #include <sys/types.h>
105 #include <dirent.h>
8502357 simplify inclusion of system header files.
Junio C Hamano authored
106 #include <sys/time.h>
107 #include <time.h>
108 #include <signal.h>
109 #include <fnmatch.h>
f4626df Add target architecture MinGW.
Johannes Sixt authored
110 #include <assert.h>
111 #include <regex.h>
112 #include <utime.h>
088d880 @dotzen mingw: implement syslog
dotzen authored
113 #include <syslog.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
114 #ifndef NO_SYS_POLL_H
fdc1211 @kusma mingw: use poll-emulation from gnulib
kusma authored
115 #include <sys/poll.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
116 #else
117 #include <poll.h>
118 #endif
cfc755d @vfr-nl Compile fix for MSVC: Do not include sys/resources.h
vfr-nl authored
119 #if defined(__MINGW32__)
120 /* pull in Windows compatibility stuff */
121 #include "compat/mingw.h"
122 #elif defined(_MSC_VER)
123 #include "compat/msvc.h"
124 #else
f4626df Add target architecture MinGW.
Johannes Sixt authored
125 #include <sys/wait.h>
ebae9ff @jrn compat: add missing #include <sys/resource.h>
jrn authored
126 #include <sys/resource.h>
8502357 simplify inclusion of system header files.
Junio C Hamano authored
127 #include <sys/socket.h>
80bbe72 Move #include <sys/select.h> and <sys/ioctl.h> to git-compat-util.h.
Johannes Sixt authored
128 #include <sys/ioctl.h>
eb80042 @pclouds Add missing #include to support TIOCGWINSZ on Solaris
pclouds authored
129 #include <termios.h>
2600973 @schiele pre-POSIX.1-2001 systems do not have <sys/select.h>
schiele authored
130 #ifndef NO_SYS_SELECT_H
80bbe72 Move #include <sys/select.h> and <sys/ioctl.h> to git-compat-util.h.
Johannes Sixt authored
131 #include <sys/select.h>
2600973 @schiele pre-POSIX.1-2001 systems do not have <sys/select.h>
schiele authored
132 #endif
8502357 simplify inclusion of system header files.
Junio C Hamano authored
133 #include <netinet/in.h>
134 #include <netinet/tcp.h>
135 #include <arpa/inet.h>
136 #include <netdb.h>
137 #include <pwd.h>
e277097 @peff credentials: add "cache" helper
peff authored
138 #include <sys/un.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
139 #ifndef NO_INTTYPES_H
007e2ba Use inttypes.h rather than stdint.h.
Jason Riedy authored
140 #include <inttypes.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
141 #else
142 #include <stdint.h>
143 #endif
41b2001 Fix an "implicit function definition" warning.
Ramsay Jones authored
144 #if defined(__CYGWIN__)
145 #undef _XOPEN_SOURCE
146 #include <grp.h>
147 #define _XOPEN_SOURCE 600
adbc0b6 @dmpot cygwin: Use native Win32 API for stat
dmpot authored
148 #include "compat/cygwin.h"
41b2001 Fix an "implicit function definition" warning.
Ramsay Jones authored
149 #else
fb95220 Set _ALL_SOURCE for AIX, but avoid its struct list.
Jason Riedy authored
150 #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
8502357 simplify inclusion of system header files.
Junio C Hamano authored
151 #include <grp.h>
fb95220 Set _ALL_SOURCE for AIX, but avoid its struct list.
Jason Riedy authored
152 #define _ALL_SOURCE 1
41b2001 Fix an "implicit function definition" warning.
Ramsay Jones authored
153 #endif
d75f8e6 @lznuaa Add platform files for porting to MSVC
lznuaa authored
154 #endif
8502357 simplify inclusion of system header files.
Junio C Hamano authored
155
e1c0688 @davvid compat: add a basename() compatibility function
davvid authored
156 #ifndef NO_LIBGEN_H
157 #include <libgen.h>
158 #else
159 #define basename gitbasename
160 extern char *gitbasename(char *);
161 #endif
162
8502357 simplify inclusion of system header files.
Junio C Hamano authored
163 #ifndef NO_ICONV
164 #include <iconv.h>
165 #endif
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
166
684ec6c git-imap-send: Support SSL
Robert Shearman authored
167 #ifndef NO_OPENSSL
168 #include <openssl/ssl.h>
169 #include <openssl/err.h>
170 #endif
171
d0c2449 Define fallback PATH_MAX on systems that do not define one in <limits.h>
Junio C Hamano authored
172 /* On most systems <limits.h> would have given us this, but
173 * not on some systems (e.g. GNU/Hurd).
174 */
175 #ifndef PATH_MAX
176 #define PATH_MAX 4096
177 #endif
178
c4001d9 @spearce Use off_t when we really mean a file offset.
spearce authored
179 #ifndef PRIuMAX
180 #define PRIuMAX "llu"
181 #endif
182
607bb3f Provide fallback definitions of PRIu32 and PRIx32
Johannes Sixt authored
183 #ifndef PRIu32
184 #define PRIu32 "u"
185 #endif
186
187 #ifndef PRIx32
188 #define PRIx32 "x"
189 #endif
190
5418d96 vcs-svn: Fix some printf format compiler warnings
Ramsay Jones authored
191 #ifndef PRIo32
192 #define PRIo32 "o"
193 #endif
194
80ba074 Windows: Use the Windows style PATH separator ';'.
Johannes Sixt authored
195 #ifndef PATH_SEP
196 #define PATH_SEP ':'
197 #endif
198
cb6a22c @arachsys exec_cmd.c: replace hard-coded path list with one from <paths.h>
arachsys authored
199 #ifdef HAVE_PATHS_H
200 #include <paths.h>
201 #endif
202 #ifndef _PATH_DEFPATH
203 #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
204 #endif
205
23326d1 Windows: Strip ".exe" from the program name.
Johannes Sixt authored
206 #ifndef STRIP_EXTENSION
207 #define STRIP_EXTENSION ""
208 #endif
209
25fe217 Windows: Treat Windows style path names.
Johannes Sixt authored
210 #ifndef has_dos_drive_prefix
211 #define has_dos_drive_prefix(path) 0
212 #endif
213
214 #ifndef is_dir_sep
215 #define is_dir_sep(c) ((c) == '/')
216 #endif
217
d1c6925 @TaleTN real_path: do not assume '/' is the path seperator
TaleTN authored
218 #ifndef find_last_dir_sep
219 #define find_last_dir_sep(path) strrchr(path, '/')
220 #endif
221
e4ac953 @artagnon git-compat-util: don't assume value for undefined variable
artagnon authored
222 #if defined(__HP_cc) && (__HP_cc >= 61000)
b6ab349 git-compat-util.h: Honor HP C's noreturn attribute
Michal Rokos authored
223 #define NORETURN __attribute__((noreturn))
224 #define NORETURN_PTR
6520c84 @gitster Add option to disable NORETURN
gitster authored
225 #elif defined(__GNUC__) && !defined(NO_NORETURN)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
226 #define NORETURN __attribute__((__noreturn__))
18660bc @kusma add NORETURN_PTR for function pointers
kusma authored
227 #define NORETURN_PTR __attribute__((__noreturn__))
aba7dea msvc: Add a definition of NORETURN compatible with msvc compiler
Ramsay Jones authored
228 #elif defined(_MSC_VER)
229 #define NORETURN __declspec(noreturn)
230 #define NORETURN_PTR
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
231 #else
232 #define NORETURN
18660bc @kusma add NORETURN_PTR for function pointers
kusma authored
233 #define NORETURN_PTR
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
234 #ifndef __attribute__
235 #define __attribute__(x)
236 #endif
237 #endif
238
51ea551 make sure byte swapping is optimal for git
Nicolas Pitre authored
239 #include "compat/bswap.h"
240
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
241 /* General helper functions */
ebaa79f Make report() from usage.c public as vreportf() and use it.
Johannes Sixt authored
242 extern void vreportf(const char *prefix, const char *err, va_list params);
3bc4181 @drizzd error_routine: use parent's stderr if exec fails
drizzd authored
243 extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
a4f3131 @kusma increase portability of NORETURN declarations
kusma authored
244 extern NORETURN void usage(const char *err);
64b1cb7 @jrn Introduce usagef() that takes a printf-style format
jrn authored
245 extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
a4f3131 @kusma increase portability of NORETURN declarations
kusma authored
246 extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
247 extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
248 extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
46efd2d @tytso Rename warn() to warning() to fix symbol conflicts on BSD and Mac OS
tytso authored
249 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
250
18660bc @kusma add NORETURN_PTR for function pointers
kusma authored
251 extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
3bc4181 @drizzd error_routine: use parent's stderr if exec fails
drizzd authored
252 extern void set_error_routine(void (*routine)(const char *err, va_list params));
39a3f5e Customizable error handlers
Petr Baudis authored
253
698a68b @gitster Uninline prefixcmp()
gitster authored
254 extern int prefixcmp(const char *str, const char *prefix);
8cc5b29 @apenwarr git merge -X<option>
apenwarr authored
255 extern int suffixcmp(const char *str, const char *suffix);
698a68b @gitster Uninline prefixcmp()
gitster authored
256
fbca583 Move parse-options's skip_prefix() to git-compat-util.h
Miklos Vajna authored
257 static inline const char *skip_prefix(const char *str, const char *prefix)
258 {
259 size_t len = strlen(prefix);
260 return strncmp(str, prefix, len) ? NULL : str + len;
261 }
262
b130a72 @sothis MinGW: implement mmap
sothis authored
263 #if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
264
265 #ifndef PROT_READ
266 #define PROT_READ 1
267 #define PROT_WRITE 2
268 #define MAP_PRIVATE 1
269 #endif
270
d677912 @spearce Rename gitfakemmap to git_mmap.
spearce authored
271 #define mmap git_mmap
272 #define munmap git_munmap
273 extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
274 extern int git_munmap(void *start, size_t length);
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
275
b130a72 @sothis MinGW: implement mmap
sothis authored
276 #else /* NO_MMAP || USE_WIN32_MMAP */
277
278 #include <sys/mman.h>
279
280 #endif /* NO_MMAP || USE_WIN32_MMAP */
281
282 #ifdef NO_MMAP
283
5faaf24 Make sure packedgitwindowsize is multiple of (pagesize * 2)
Junio C Hamano authored
284 /* This value must be multiple of (pagesize * 2) */
8c82534 @spearce Default core.packdGitWindowSize to 1 MiB if NO_MMAP.
spearce authored
285 #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
286
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
287 #else /* NO_MMAP */
288
5faaf24 Make sure packedgitwindowsize is multiple of (pagesize * 2)
Junio C Hamano authored
289 /* This value must be multiple of (pagesize * 2) */
22bac0e @spearce Increase packedGit{Limit,WindowSize} on 64 bit systems.
spearce authored
290 #define DEFAULT_PACKED_GIT_WINDOW_SIZE \
291 (sizeof(void*) >= 8 \
292 ? 1 * 1024 * 1024 * 1024 \
293 : 32 * 1024 * 1024)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
294
295 #endif /* NO_MMAP */
296
fcf3a21 git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
Gary V. Vaughan authored
297 #ifndef MAP_FAILED
298 #define MAP_FAILED ((void *)-1)
299 #endif
300
fdb2a2a @gitster compat: introduce on_disk_bytes()
gitster authored
301 #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
302 #define on_disk_bytes(st) ((st).st_size)
303 #else
304 #define on_disk_bytes(st) ((st).st_blocks * 512)
305 #endif
306
22bac0e @spearce Increase packedGit{Limit,WindowSize} on 64 bit systems.
spearce authored
307 #define DEFAULT_PACKED_GIT_LIMIT \
ecaebf4 Spell default packedgitlimit slightly differently
Junio C Hamano authored
308 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
8c82534 @spearce Default core.packdGitWindowSize to 1 MiB if NO_MMAP.
spearce authored
309
6900679 Replacing the system call pread() with lseek()/xread()/lseek() sequence.
Stefan-W. Hahn authored
310 #ifdef NO_PREAD
311 #define pread git_pread
312 extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
313 #endif
14086b0 @sprohaska compat/pread.c: Add a forward declaration to fix a warning
sprohaska authored
314 /*
315 * Forward decl that will remind us if its twin in cache.h changes.
316 * This function is used in compat/pread.c. But we can't include
317 * cache.h there.
318 */
319 extern ssize_t read_in_full(int fd, void *buf, size_t count);
6900679 Replacing the system call pread() with lseek()/xread()/lseek() sequence.
Stefan-W. Hahn authored
320
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
321 #ifdef NO_SETENV
322 #define setenv gitsetenv
323 extern int gitsetenv(const char *, const char *, int);
324 #endif
325
ca5bb5d @spearce Define compat version of mkdtemp for systems lacking it
spearce authored
326 #ifdef NO_MKDTEMP
327 #define mkdtemp gitmkdtemp
328 extern char *gitmkdtemp(char *);
329 #endif
330
0620b39 @davvid compat: add a mkstemps() compatibility function
davvid authored
331 #ifdef NO_MKSTEMPS
332 #define mkstemps gitmkstemps
333 extern int gitmkstemps(char *, int);
334 #endif
335
731043f Add compat/unsetenv.c .
Jason Riedy authored
336 #ifdef NO_UNSETENV
337 #define unsetenv gitunsetenv
338 extern void gitunsetenv(const char *);
339 #endif
340
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
341 #ifdef NO_STRCASESTR
342 #define strcasestr gitstrcasestr
343 extern char *gitstrcasestr(const char *haystack, const char *needle);
344 #endif
345
817151e Rename safe_strncpy() to strlcpy().
Peter Eriksen authored
346 #ifdef NO_STRLCPY
347 #define strlcpy gitstrlcpy
348 extern size_t gitstrlcpy(char *, const char *, size_t);
349 #endif
350
bc6b4f5 Add a compat/strtoumax.c for Solaris 8.
Jason Riedy authored
351 #ifdef NO_STRTOUMAX
352 #define strtoumax gitstrtoumax
353 extern uintmax_t gitstrtoumax(const char *, char **, int);
97000ba Compatibility: declare strtoimax() under NO_STRTOUMAX
Johannes Sixt authored
354 #define strtoimax gitstrtoimax
355 extern intmax_t gitstrtoimax(const char *, char **, int);
bc6b4f5 Add a compat/strtoumax.c for Solaris 8.
Jason Riedy authored
356 #endif
357
78457bc @jrn compat: add strtok_r()
jrn authored
358 #ifdef NO_STRTOK_R
359 #define strtok_r gitstrtok_r
360 extern char *gitstrtok_r(char *s, const char *delim, char **save_ptr);
361 #endif
362
fa0c87c @raalkml Add a local implementation of hstrerror for the system which do not h…
raalkml authored
363 #ifdef NO_HSTRERROR
364 #define hstrerror githstrerror
365 extern const char *githstrerror(int herror);
366 #endif
367
b21b9f1 add memmem()
René Scharfe authored
368 #ifdef NO_MEMMEM
369 #define memmem gitmemmem
370 void *gitmemmem(const void *haystack, size_t haystacklen,
371 const void *needle, size_t needlelen);
372 #endif
373
cba2252 Add compat/fopen.c which returns NULL on attempt to open directory
Brandon Casey authored
374 #ifdef FREAD_READS_DIRECTORIES
c5445fe compat-util: avoid macro redefinition warning
Johannes Sixt authored
375 #ifdef fopen
376 #undef fopen
377 #endif
cba2252 Add compat/fopen.c which returns NULL on attempt to open directory
Brandon Casey authored
378 #define fopen(a,b) git_fopen(a,b)
379 extern FILE *git_fopen(const char*, const char*);
380 #endif
381
c4582f9 Add compat/snprintf.c for systems that return bogus
Michal Rokos authored
382 #ifdef SNPRINTF_RETURNS_BOGUS
383 #define snprintf git_snprintf
384 extern int git_snprintf(char *str, size_t maxsize,
385 const char *format, ...);
386 #define vsnprintf git_vsnprintf
387 extern int git_vsnprintf(char *str, size_t maxsize,
388 const char *format, va_list ap);
389 #endif
390
726c8ef Fix preprocessor logic that determines the availablity of strchrnul().
Johannes Sixt authored
391 #ifdef __GLIBC_PREREQ
392 #if __GLIBC_PREREQ(2, 1)
393 #define HAVE_STRCHRNUL
137c6ea @jrn compat: add mempcpy()
jrn authored
394 #define HAVE_MEMPCPY
726c8ef Fix preprocessor logic that determines the availablity of strchrnul().
Johannes Sixt authored
395 #endif
396 #endif
397
398 #ifndef HAVE_STRCHRNUL
659c69c Add strchrnul()
René Scharfe authored
399 #define strchrnul gitstrchrnul
9e79f00 @ageric Simplify strchrnul() compat code
ageric authored
400 static inline char *gitstrchrnul(const char *s, int c)
401 {
402 while (*s && *s != c)
403 s++;
404 return (char *)s;
405 }
659c69c Add strchrnul()
René Scharfe authored
406 #endif
407
137c6ea @jrn compat: add mempcpy()
jrn authored
408 #ifndef HAVE_MEMPCPY
409 #define mempcpy gitmempcpy
410 static inline void *gitmempcpy(void *dest, const void *src, size_t n)
411 {
412 return (char *)memcpy(dest, src, n) + n;
413 }
414 #endif
415
da523cc @dotzen compat: add inet_pton and inet_ntop prototypes
dotzen authored
416 #ifdef NO_INET_PTON
417 int inet_pton(int af, const char *src, void *dst);
418 #endif
419
420 #ifdef NO_INET_NTOP
421 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
422 #endif
423
d1efefa @spearce Actually handle some-low memory conditions
spearce authored
424 extern void release_pack_memory(size_t, int);
97bfeb3 @spearce Release pack windows before reporting out of memory.
spearce authored
425
851c34b Have set_try_to_free_routine return the previous routine
Johannes Sixt authored
426 typedef void (*try_to_free_t)(size_t);
427 extern try_to_free_t set_try_to_free_routine(try_to_free_t);
a9a7463 @npitre Make xmalloc and xrealloc thread-safe
npitre authored
428
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
429 extern char *xstrdup(const char *str);
430 extern void *xmalloc(size_t size);
5bf9219 Add xmallocz()
Ilari Liusvaara authored
431 extern void *xmallocz(size_t size);
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
432 extern void *xmemdupz(const void *data, size_t len);
433 extern char *xstrndup(const char *str, size_t len);
434 extern void *xrealloc(void *ptr, size_t size);
435 extern void *xcalloc(size_t nmemb, size_t size);
436 extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
437 extern ssize_t xread(int fd, void *buf, size_t len);
438 extern ssize_t xwrite(int fd, const void *buf, size_t len);
439 extern int xdup(int fd);
440 extern FILE *xfdopen(int fd, const char *mode);
441 extern int xmkstemp(char *template);
463db9b @jrn wrapper: move odb_* to environment.c
jrn authored
442 extern int xmkstemp_mode(char *template, int mode);
6e180cd @gitster Make sure objects/pack exists before creating a new pack
gitster authored
443 extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
444 extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
f21a47b Introduces xmkstemp()
Luiz Fernando N. Capitulino authored
445
dc49cd7 @spearce Cast 64 bit off_t to 32 bit size_t
spearce authored
446 static inline size_t xsize_t(off_t len)
447 {
46be82d @trast xsize_t: check whether we lose bits
trast authored
448 if (len > (size_t) len)
449 die("Cannot handle files this big");
dc49cd7 @spearce Cast 64 bit off_t to 32 bit size_t
spearce authored
450 return (size_t)len;
451 }
452
5bb1cda drop length argument of has_extension
Rene Scharfe authored
453 static inline int has_extension(const char *filename, const char *ext)
83a2b84 Add has_extension()
Rene Scharfe authored
454 {
5bb1cda drop length argument of has_extension
Rene Scharfe authored
455 size_t len = strlen(filename);
456 size_t extlen = strlen(ext);
83a2b84 Add has_extension()
Rene Scharfe authored
457 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
458 }
459
f1589d1 ctype.c: Fix a sparse warning
Ramsay Jones authored
460 /* in ctype.c, for kwset users */
461 extern const char tolower_trans_tbl[256];
462
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
463 /* Sane ctype - no locale, and works with signed chars */
c2e9364 cleanup: add isascii()
René Scharfe authored
464 #undef isascii
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
465 #undef isspace
466 #undef isdigit
467 #undef isalpha
468 #undef isalnum
43ccdf5 ctype: implement islower/isupper macro
Namhyung Kim authored
469 #undef islower
470 #undef isupper
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
471 #undef tolower
472 #undef toupper
473 extern unsigned char sane_ctype[256];
474 #define GIT_SPACE 0x01
475 #define GIT_DIGIT 0x02
476 #define GIT_ALPHA 0x04
8cc3299 Change NUL char handling of isspecial()
René Scharfe authored
477 #define GIT_GLOB_SPECIAL 0x08
f9b7cce Add is_regex_special()
René Scharfe authored
478 #define GIT_REGEX_SPECIAL 0x10
2f6c976 @gitster magic pathspec: futureproof shorthand form
gitster authored
479 #define GIT_PATHSPEC_MAGIC 0x20
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
480 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
c2e9364 cleanup: add isascii()
René Scharfe authored
481 #define isascii(x) (((x) & ~0x7f) == 0)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
482 #define isspace(x) sane_istest(x,GIT_SPACE)
483 #define isdigit(x) sane_istest(x,GIT_DIGIT)
484 #define isalpha(x) sane_istest(x,GIT_ALPHA)
485 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
43ccdf5 ctype: implement islower/isupper macro
Namhyung Kim authored
486 #define islower(x) sane_iscase(x, 1)
487 #define isupper(x) sane_iscase(x, 0)
8cc3299 Change NUL char handling of isspecial()
René Scharfe authored
488 #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
f9b7cce Add is_regex_special()
René Scharfe authored
489 #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
490 #define tolower(x) sane_case((unsigned char)(x), 0x20)
491 #define toupper(x) sane_case((unsigned char)(x), 0)
2f6c976 @gitster magic pathspec: futureproof shorthand form
gitster authored
492 #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
493
494 static inline int sane_case(int x, int high)
495 {
496 if (sane_istest(x, GIT_ALPHA))
497 x = (x & ~0x20) | high;
498 return x;
499 }
500
43ccdf5 ctype: implement islower/isupper macro
Namhyung Kim authored
501 static inline int sane_iscase(int x, int is_lower)
502 {
503 if (!sane_istest(x, GIT_ALPHA))
504 return 0;
505
506 if (is_lower)
507 return (x & 0x20) != 0;
508 else
509 return (x & 0x20) == 0;
510 }
511
6aead43 @meyering sscanf/strtoul: parse integers robustly
meyering authored
512 static inline int strtoul_ui(char const *s, int base, unsigned int *result)
513 {
514 unsigned long ul;
515 char *p;
516
517 errno = 0;
518 ul = strtoul(s, &p, base);
519 if (errno || *p || p == s || (unsigned int) ul != ul)
520 return -1;
521 *result = ul;
522 return 0;
523 }
524
7791ecb @gitster revert/cherry-pick: work on merge commits as well
gitster authored
525 static inline int strtol_i(char const *s, int base, int *result)
526 {
527 long ul;
528 char *p;
529
530 errno = 0;
531 ul = strtol(s, &p, base);
532 if (errno || *p || p == s || (int) ul != ul)
533 return -1;
534 *result = ul;
535 return 0;
536 }
537
43fe901 @bdowning compat: Add simplified merge sort implementation from glibc
bdowning authored
538 #ifdef INTERNAL_QSORT
539 void git_qsort(void *base, size_t nmemb, size_t size,
540 int(*compar)(const void *, const void *));
541 #define qsort git_qsort
542 #endif
543
81a24b5 @raalkml Do not use GUID on dir in git init --shared=all on FreeBSD
raalkml authored
544 #ifndef DIR_HAS_BSD_GROUP_SEMANTICS
545 # define FORCE_DIR_SET_GID S_ISGID
546 #else
547 # define FORCE_DIR_SET_GID 0
548 #endif
549
c06ff49 Record ns-timestamps if possible, but do not use it without USE_NSEC
Kjetil Barvik authored
550 #ifdef NO_NSEC
551 #undef USE_NSEC
552 #define ST_CTIME_NSEC(st) 0
553 #define ST_MTIME_NSEC(st) 0
554 #else
c567383 @Benabik Create USE_ST_TIMESPEC and turn it on for Darwin
Benabik authored
555 #ifdef USE_ST_TIMESPEC
556 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
557 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
558 #else
c06ff49 Record ns-timestamps if possible, but do not use it without USE_NSEC
Kjetil Barvik authored
559 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
560 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
561 #endif
c567383 @Benabik Create USE_ST_TIMESPEC and turn it on for Darwin
Benabik authored
562 #endif
c06ff49 Record ns-timestamps if possible, but do not use it without USE_NSEC
Kjetil Barvik authored
563
34779c5 Windows: Skip fstat/lstat optimization in write_entry()
Johannes Sixt authored
564 #ifdef UNRELIABLE_FSTAT
565 #define fstat_is_reliable() 0
566 #else
567 #define fstat_is_reliable() 1
568 #endif
569
ab8632a @peff compat: provide a fallback va_copy definition
peff authored
570 #ifndef va_copy
26db0f2 @jrn compat: fall back on __va_copy if available
jrn authored
571 /*
572 * Since an obvious implementation of va_list would be to make it a
573 * pointer into the stack frame, a simple assignment will work on
574 * many systems. But let's try to be more portable.
575 */
576 #ifdef __va_copy
577 #define va_copy(dst, src) __va_copy(dst, src)
578 #else
579 #define va_copy(dst, src) ((dst) = (src))
580 #endif
ab8632a @peff compat: provide a fallback va_copy definition
peff authored
581 #endif
582
fc71db3 @raalkml Introduce an unlink(2) wrapper which gives warning if unlink failed
raalkml authored
583 /*
584 * Preserves errno, prints a message, but gives no warning for ENOENT.
585 * Always returns the return value of unlink(2).
586 */
587 int unlink_or_warn(const char *path);
d172329 @pcc Implement the rmdir_or_warn function
pcc authored
588 /*
589 * Likewise for rmdir(2).
590 */
591 int rmdir_or_warn(const char *path);
80d706a @pcc Introduce remove_or_warn function
pcc authored
592 /*
593 * Calls the correct function out of {unlink,rmdir}_or_warn based on
594 * the supplied file mode.
595 */
596 int remove_or_warn(unsigned int mode, const char *path);
fc71db3 @raalkml Introduce an unlink(2) wrapper which gives warning if unlink failed
raalkml authored
597
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
598 #endif
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