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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
89c855e @devzero2000 git-compat-util.h: implement a different ARRAY_SIZE macro for for saf…
devzero2000 authored
6
7 /* Derived from Linux "Features Test Macro" header
8 * Convenience macros to test the versions of gcc (or
9 * a compatible compiler).
10 * Use them like this:
11 * #if GIT_GNUC_PREREQ (2,8)
12 * ... code requiring gcc 2.8 or later ...
13 * #endif
14 */
15 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
16 # define GIT_GNUC_PREREQ(maj, min) \
17 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
18 #else
19 #define GIT_GNUC_PREREQ(maj, min) 0
20 #endif
21
22
8f1d2e6 [PATCH] Compilation: zero-length array declaration.
Junio C Hamano authored
23 #ifndef FLEX_ARRAY
8e97399 @gitster git-compat-util.h: auto-adjust to compiler support of FLEX_ARRAY a bi…
gitster authored
24 /*
25 * See if our compiler is known to support flexible array members.
26 */
203ee91 @drafnel git-compat-util.h: avoid using c99 flex array feature with Sun compil…
drafnel authored
27 #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
28 # define FLEX_ARRAY /* empty */
29 #elif defined(__GNUC__)
30 # if (__GNUC__ >= 3)
31 # define FLEX_ARRAY /* empty */
32 # else
33 # define FLEX_ARRAY 0 /* older GNU extension */
34 # endif
35 #endif
36
37 /*
38 * Otherwise, default to safer but a bit wasteful traditional style
39 */
40 #ifndef FLEX_ARRAY
41 # define FLEX_ARRAY 1
8f1d2e6 [PATCH] Compilation: zero-length array declaration.
Junio C Hamano authored
42 #endif
43 #endif
44
89c855e @devzero2000 git-compat-util.h: implement a different ARRAY_SIZE macro for for saf…
devzero2000 authored
45
46 /*
47 * BUILD_ASSERT_OR_ZERO - assert a build-time dependency, as an expression.
48 * @cond: the compile-time condition which must be true.
49 *
50 * Your compile will fail if the condition isn't true, or can't be evaluated
51 * by the compiler. This can be used in an expression: its value is "0".
52 *
53 * Example:
54 * #define foo_to_char(foo) \
55 * ((char *)(foo) \
56 * + BUILD_ASSERT_OR_ZERO(offsetof(struct foo, string) == 0))
57 */
58 #define BUILD_ASSERT_OR_ZERO(cond) \
59 (sizeof(char [1 - 2*!(cond)]) - 1)
60
e2c6f7c @hashpling Fix definition of ARRAY_SIZE for non-gcc builds
hashpling authored
61 #if GIT_GNUC_PREREQ(3, 1)
89c855e @devzero2000 git-compat-util.h: implement a different ARRAY_SIZE macro for for saf…
devzero2000 authored
62 /* &arr[0] degrades to a pointer: a different type from an array */
63 # define BARF_UNLESS_AN_ARRAY(arr) \
64 BUILD_ASSERT_OR_ZERO(!__builtin_types_compatible_p(__typeof__(arr), \
65 __typeof__(&(arr)[0])))
e2c6f7c @hashpling Fix definition of ARRAY_SIZE for non-gcc builds
hashpling authored
66 #else
67 # define BARF_UNLESS_AN_ARRAY(arr) 0
89c855e @devzero2000 git-compat-util.h: implement a different ARRAY_SIZE macro for for saf…
devzero2000 authored
68 #endif
69 /*
70 * ARRAY_SIZE - get the number of elements in a visible array
71 * <at> x: the array whose size you want.
72 *
73 * This does not work on pointers, or arrays declared as [], or
74 * function parameters. With correct compiler support, such usage
75 * will cause a build error (see the build_assert_or_zero macro).
76 */
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]) + BARF_UNLESS_AN_ARRAY(x))
78
f630cfd refactor: use bitsizeof() instead of 8 * sizeof()
Pierre Habouzit authored
79 #define bitsizeof(x) (CHAR_BIT * sizeof(x))
b4f2a6a Use #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
Junio C Hamano authored
80
c03c831 @kusma do not depend on signed integer overflow
kusma authored
81 #define maximum_signed_value_of_type(a) \
82 (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a)))
83
1368f65 @jrn compat: helper for detecting unsigned overflow
jrn authored
84 #define maximum_unsigned_value_of_type(a) \
85 (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a)))
86
c03c831 @kusma do not depend on signed integer overflow
kusma authored
87 /*
88 * Signed integer overflow is undefined in C, so here's a helper macro
89 * to detect if the sum of two integers will overflow.
90 *
91 * Requires: a >= 0, typeof(a) equals typeof(b)
92 */
93 #define signed_add_overflows(a, b) \
94 ((b) > maximum_signed_value_of_type(a) - (a))
95
1368f65 @jrn compat: helper for detecting unsigned overflow
jrn authored
96 #define unsigned_add_overflows(a, b) \
97 ((b) > maximum_unsigned_value_of_type(a) - (a))
98
8723f21 make overflow test on delta base offset work regardless of variable size
Nicolas Pitre authored
99 #ifdef __GNUC__
100 #define TYPEOF(x) (__typeof__(x))
101 #else
102 #define TYPEOF(x)
103 #endif
104
f630cfd refactor: use bitsizeof() instead of 8 * sizeof()
Pierre Habouzit authored
105 #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits))))
db7244b parse-options new features.
Pierre Habouzit authored
106 #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
107
98cb6f3 janitor: add DIV_ROUND_UP and use it.
Pierre Habouzit authored
108 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
109
cf606e3 @awhitcroft git name-rev writes beyond the end of malloc() with large generations
awhitcroft authored
110 /* Approximation of the length of the decimal representation of this type. */
111 #define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
112
4cb18a4 @drafnel git-compat-util.h: tweak the way _XOPEN_SOURCE is set on Solaris
drafnel authored
113 #if defined(__sun__)
114 /*
115 * On Solaris, when _XOPEN_EXTENDED is set, its header file
116 * forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE
117 * setting to say we are XPG5 or XPG6. Also on Solaris,
118 * XPG6 programs must be compiled with a c99 compiler, while
119 * non XPG6 programs must be compiled with a pre-c99 compiler.
120 */
121 # if __STDC_VERSION__ - 0 >= 199901L
122 # define _XOPEN_SOURCE 600
123 # else
124 # define _XOPEN_SOURCE 500
125 # endif
6555b19 Fix _XOPEN_SOURCE problem on DragonFly
YONETANI Tomokazu authored
126 #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
6c10990 @Jojo-Schmitz Port to HP NonStop
Jojo-Schmitz authored
127 !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \
3a0a3a8 git-compat-util.h: don't define _XOPEN_SOURCE on cygwin
Ramsay Jones authored
128 !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__) && \
129 !defined(__CYGWIN__)
8502357 simplify inclusion of system header files.
Junio C Hamano authored
130 #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
131 #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
c902c9a Fix system header problems on Mac OS X
Terje Sten Bjerkseth authored
132 #endif
fb95220 Set _ALL_SOURCE for AIX, but avoid its struct list.
Jason Riedy authored
133 #define _ALL_SOURCE 1
134 #define _GNU_SOURCE 1
135 #define _BSD_SOURCE 1
f978a99 @sergey-senozhatsky compat-util: add _DEFAULT_SOURCE define
sergey-senozhatsky authored
136 #define _DEFAULT_SOURCE 1
9a695fb @prlw1 NetBSD compilation fix
prlw1 authored
137 #define _NETBSD_SOURCE 1
9398b85 git-compat-util.h: adjust for SGI IRIX 6.5
Brandon Casey authored
138 #define _SGI_SOURCE 1
8502357 simplify inclusion of system header files.
Junio C Hamano authored
139
380395d @jrn mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
jrn authored
140 #if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */
8453c12 @sschuberth Windows: do not redefine _WIN32_WINNT
sschuberth authored
141 # if defined (_MSC_VER) && !defined(_WIN32_WINNT)
41f2999 msvc: Fix compilation errors caused by poll.h emulation
Ramsay Jones authored
142 # define _WIN32_WINNT 0x0502
143 # endif
435bdf8 @mstormo Make usage of windows.h lean and mean
mstormo authored
144 #define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
145 #include <winsock2.h>
146 #include <windows.h>
380395d @jrn mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
jrn authored
147 #define GIT_WINDOWS_NATIVE
435bdf8 @mstormo Make usage of windows.h lean and mean
mstormo authored
148 #endif
149
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
150 #include <unistd.h>
151 #include <stdio.h>
152 #include <sys/stat.h>
153 #include <fcntl.h>
154 #include <stddef.h>
155 #include <stdlib.h>
156 #include <stdarg.h>
157 #include <string.h>
b3e103d @dm0- Generalize the inclusion of strings.h
dm0- authored
158 #ifdef HAVE_STRINGS_H
6c10990 @Jojo-Schmitz Port to HP NonStop
Jojo-Schmitz authored
159 #include <strings.h> /* for strcasecmp() */
160 #endif
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
161 #include <errno.h>
162 #include <limits.h>
b2d05e0 @gitster git-compat-util.h: do not #include <sys/param.h> by default
gitster authored
163 #ifdef NEEDS_SYS_PARAM_H
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
164 #include <sys/param.h>
6ede720 @dm0- Support builds when sys/param.h is missing
dm0- authored
165 #endif
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
166 #include <sys/types.h>
167 #include <dirent.h>
8502357 simplify inclusion of system header files.
Junio C Hamano authored
168 #include <sys/time.h>
169 #include <time.h>
170 #include <signal.h>
f4626df Add target architecture MinGW.
Johannes Sixt authored
171 #include <assert.h>
172 #include <regex.h>
173 #include <utime.h>
088d880 @dotzen mingw: implement syslog
dotzen authored
174 #include <syslog.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
175 #ifndef NO_SYS_POLL_H
fdc1211 @kusma mingw: use poll-emulation from gnulib
kusma authored
176 #include <sys/poll.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
177 #else
178 #include <poll.h>
179 #endif
9529080 @mackyle configure: support HAVE_BSD_SYSCTL option
mackyle authored
180 #ifdef HAVE_BSD_SYSCTL
181 #include <sys/sysctl.h>
182 #endif
2f0aaaf path: Fix a sparse warning
Ramsay Jones authored
183
cfc755d @vfr-nl Compile fix for MSVC: Do not include sys/resources.h
vfr-nl authored
184 #if defined(__MINGW32__)
185 /* pull in Windows compatibility stuff */
186 #include "compat/mingw.h"
187 #elif defined(_MSC_VER)
188 #include "compat/msvc.h"
189 #else
1e8fef6 @pclouds untracked cache: guard and disable on system changes
pclouds authored
190 #include <sys/utsname.h>
f4626df Add target architecture MinGW.
Johannes Sixt authored
191 #include <sys/wait.h>
ebae9ff @jrn compat: add missing #include <sys/resource.h>
jrn authored
192 #include <sys/resource.h>
8502357 simplify inclusion of system header files.
Junio C Hamano authored
193 #include <sys/socket.h>
80bbe72 Move #include <sys/select.h> and <sys/ioctl.h> to git-compat-util.h.
Johannes Sixt authored
194 #include <sys/ioctl.h>
eb80042 @pclouds Add missing #include to support TIOCGWINSZ on Solaris
pclouds authored
195 #include <termios.h>
2600973 @schiele pre-POSIX.1-2001 systems do not have <sys/select.h>
schiele authored
196 #ifndef NO_SYS_SELECT_H
80bbe72 Move #include <sys/select.h> and <sys/ioctl.h> to git-compat-util.h.
Johannes Sixt authored
197 #include <sys/select.h>
2600973 @schiele pre-POSIX.1-2001 systems do not have <sys/select.h>
schiele authored
198 #endif
8502357 simplify inclusion of system header files.
Junio C Hamano authored
199 #include <netinet/in.h>
200 #include <netinet/tcp.h>
201 #include <arpa/inet.h>
202 #include <netdb.h>
203 #include <pwd.h>
e277097 @peff credentials: add "cache" helper
peff authored
204 #include <sys/un.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
205 #ifndef NO_INTTYPES_H
007e2ba Use inttypes.h rather than stdint.h.
Jason Riedy authored
206 #include <inttypes.h>
2844923 add support for the SUA layer (interix; windows)
Markus Duft authored
207 #else
208 #include <stdint.h>
209 #endif
6c10990 @Jojo-Schmitz Port to HP NonStop
Jojo-Schmitz authored
210 #ifdef NO_INTPTR_T
211 /*
212 * On I16LP32, ILP32 and LP64 "long" is the save bet, however
213 * on LLP86, IL33LLP64 and P64 it needs to be "long long",
214 * while on IP16 and IP16L32 it is "int" (resp. "short")
215 * Size needs to match (or exceed) 'sizeof(void *)'.
216 * We can't take "long long" here as not everybody has it.
217 */
218 typedef long intptr_t;
219 typedef unsigned long uintptr_t;
220 #endif
fb95220 Set _ALL_SOURCE for AIX, but avoid its struct list.
Jason Riedy authored
221 #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
8502357 simplify inclusion of system header files.
Junio C Hamano authored
222 #include <grp.h>
fb95220 Set _ALL_SOURCE for AIX, but avoid its struct list.
Jason Riedy authored
223 #define _ALL_SOURCE 1
41b2001 Fix an "implicit function definition" warning.
Ramsay Jones authored
224 #endif
8502357 simplify inclusion of system header files.
Junio C Hamano authored
225
76759c7 @tboegi git on Mac OS and precomposed unicode
tboegi authored
226 /* used on Mac OS X */
227 #ifdef PRECOMPOSE_UNICODE
228 #include "compat/precompose_utf8.h"
229 #else
230 #define precompose_str(in,i_nfd2nfc)
231 #define precompose_argv(c,v)
fdf7296 @peff probe_utf8_pathname_composition: use internal strbuf
peff authored
232 #define probe_utf8_pathname_composition()
76759c7 @tboegi git on Mac OS and precomposed unicode
tboegi authored
233 #endif
234
0539ecf @Jojo-Schmitz compat: some mkdir() do not like a slash at the end
Jojo-Schmitz authored
235 #ifdef MKDIR_WO_TRAILING_SLASH
236 #define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
237 extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
238 #endif
239
7f9e848 @Jojo-Schmitz Add a no-op setitimer() wrapper
Jojo-Schmitz authored
240 #ifdef NO_STRUCT_ITIMERVAL
241 struct itimerval {
242 struct timeval it_interval;
243 struct timeval it_value;
981ff52 @sortie git-compat-util.h: add missing semicolon after struct itimerval
sortie authored
244 };
7f9e848 @Jojo-Schmitz Add a no-op setitimer() wrapper
Jojo-Schmitz authored
245 #endif
246
247 #ifdef NO_SETITIMER
248 #define setitimer(which,value,ovalue)
249 #endif
250
e1c0688 @davvid compat: add a basename() compatibility function
davvid authored
251 #ifndef NO_LIBGEN_H
252 #include <libgen.h>
253 #else
254 #define basename gitbasename
255 extern char *gitbasename(char *);
824682a @dscho compat/basename.c: provide a dirname() compatibility function
dscho authored
256 #define dirname gitdirname
257 extern char *gitdirname(char *);
e1c0688 @davvid compat: add a basename() compatibility function
davvid authored
258 #endif
259
8502357 simplify inclusion of system header files.
Junio C Hamano authored
260 #ifndef NO_ICONV
261 #include <iconv.h>
262 #endif
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
263
684ec6c @rshearman git-imap-send: Support SSL
rshearman authored
264 #ifndef NO_OPENSSL
88c03eb @mackyle git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIRED
mackyle authored
265 #ifdef __APPLE__
b195aa0 @sunshineco git-compat-util: suppress unavoidable Apple-specific deprecation warn…
sunshineco authored
266 #define __AVAILABILITY_MACROS_USES_AVAILABILITY 0
88c03eb @mackyle git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIRED
mackyle authored
267 #include <AvailabilityMacros.h>
268 #undef DEPRECATED_ATTRIBUTE
269 #define DEPRECATED_ATTRIBUTE
270 #undef __AVAILABILITY_MACROS_USES_AVAILABILITY
271 #endif
684ec6c @rshearman git-imap-send: Support SSL
rshearman authored
272 #include <openssl/ssl.h>
273 #include <openssl/err.h>
88e0118 @reubenhwk configure.ac: check for HMAC_CTX_cleanup
reubenhwk authored
274 #ifdef NO_HMAC_CTX_CLEANUP
275 #define HMAC_CTX_cleanup HMAC_cleanup
276 #endif
684ec6c @rshearman git-imap-send: Support SSL
rshearman authored
277 #endif
278
3b130ad @dm0- git-compat-util.h: Provide missing netdb.h definitions
dm0- authored
279 /* On most systems <netdb.h> would have given us this, but
280 * not on some systems (e.g. z/OS).
281 */
282 #ifndef NI_MAXHOST
283 #define NI_MAXHOST 1025
284 #endif
285
286 #ifndef NI_MAXSERV
287 #define NI_MAXSERV 32
288 #endif
289
d0c2449 Define fallback PATH_MAX on systems that do not define one in <limits.h>
Junio C Hamano authored
290 /* On most systems <limits.h> would have given us this, but
291 * not on some systems (e.g. GNU/Hurd).
292 */
293 #ifndef PATH_MAX
294 #define PATH_MAX 4096
295 #endif
296
c4001d9 @spearce Use off_t when we really mean a file offset.
spearce authored
297 #ifndef PRIuMAX
298 #define PRIuMAX "llu"
299 #endif
300
fdcdb77 @weakcamel Correct fscanf formatting string for I64u values
weakcamel authored
301 #ifndef SCNuMAX
302 #define SCNuMAX PRIuMAX
303 #endif
304
607bb3f Provide fallback definitions of PRIu32 and PRIx32
Johannes Sixt authored
305 #ifndef PRIu32
306 #define PRIu32 "u"
307 #endif
308
309 #ifndef PRIx32
310 #define PRIx32 "x"
311 #endif
312
5418d96 vcs-svn: Fix some printf format compiler warnings
Ramsay Jones authored
313 #ifndef PRIo32
314 #define PRIo32 "o"
315 #endif
316
80ba074 Windows: Use the Windows style PATH separator ';'.
Johannes Sixt authored
317 #ifndef PATH_SEP
318 #define PATH_SEP ':'
319 #endif
320
cb6a22c @arachsys exec_cmd.c: replace hard-coded path list with one from <paths.h>
arachsys authored
321 #ifdef HAVE_PATHS_H
322 #include <paths.h>
323 #endif
324 #ifndef _PATH_DEFPATH
325 #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
326 #endif
327
23326d1 Windows: Strip ".exe" from the program name.
Johannes Sixt authored
328 #ifndef STRIP_EXTENSION
329 #define STRIP_EXTENSION ""
330 #endif
331
25fe217 Windows: Treat Windows style path names.
Johannes Sixt authored
332 #ifndef has_dos_drive_prefix
bf72834 turn path macros into inline function
René Scharfe authored
333 static inline int git_has_dos_drive_prefix(const char *path)
334 {
335 return 0;
336 }
337 #define has_dos_drive_prefix git_has_dos_drive_prefix
25fe217 Windows: Treat Windows style path names.
Johannes Sixt authored
338 #endif
339
2f36eed @dscho Refactor skipping DOS drive prefixes
dscho authored
340 #ifndef skip_dos_drive_prefix
341 static inline int git_skip_dos_drive_prefix(char **path)
342 {
343 return 0;
344 }
345 #define skip_dos_drive_prefix git_skip_dos_drive_prefix
346 #endif
347
bf72834 turn path macros into inline function
René Scharfe authored
348 #ifndef is_dir_sep
349 static inline int git_is_dir_sep(int c)
350 {
351 return c == '/';
352 }
353 #define is_dir_sep git_is_dir_sep
c2369bd @czawadka Windows: allow using UNC path for git repository
czawadka authored
354 #endif
355
bf72834 turn path macros into inline function
René Scharfe authored
356 #ifndef offset_1st_component
357 static inline int git_offset_1st_component(const char *path)
358 {
359 return is_dir_sep(path[0]);
360 }
361 #define offset_1st_component git_offset_1st_component
25fe217 Windows: Treat Windows style path names.
Johannes Sixt authored
362 #endif
363
d1c6925 @TaleTN real_path: do not assume '/' is the path seperator
TaleTN authored
364 #ifndef find_last_dir_sep
bf72834 turn path macros into inline function
René Scharfe authored
365 static inline char *git_find_last_dir_sep(const char *path)
366 {
367 return strrchr(path, '/');
368 }
369 #define find_last_dir_sep git_find_last_dir_sep
d1c6925 @TaleTN real_path: do not assume '/' is the path seperator
TaleTN authored
370 #endif
371
e4ac953 @artagnon git-compat-util: don't assume value for undefined variable
artagnon authored
372 #if defined(__HP_cc) && (__HP_cc >= 61000)
b6ab349 git-compat-util.h: Honor HP C's noreturn attribute
Michal Rokos authored
373 #define NORETURN __attribute__((noreturn))
374 #define NORETURN_PTR
6520c84 @gitster Add option to disable NORETURN
gitster authored
375 #elif defined(__GNUC__) && !defined(NO_NORETURN)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
376 #define NORETURN __attribute__((__noreturn__))
18660bc @kusma add NORETURN_PTR for function pointers
kusma authored
377 #define NORETURN_PTR __attribute__((__noreturn__))
aba7dea msvc: Add a definition of NORETURN compatible with msvc compiler
Ramsay Jones authored
378 #elif defined(_MSC_VER)
379 #define NORETURN __declspec(noreturn)
380 #define NORETURN_PTR
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
381 #else
382 #define NORETURN
18660bc @kusma add NORETURN_PTR for function pointers
kusma authored
383 #define NORETURN_PTR
8cd7ebc Don't define away __attribute__ on gcc
Andi Kleen authored
384 #ifndef __GNUC__
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
385 #ifndef __attribute__
386 #define __attribute__(x)
387 #endif
388 #endif
8cd7ebc Don't define away __attribute__ on gcc
Andi Kleen authored
389 #endif
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
390
9fe3edc Add the LAST_ARG_MUST_BE_NULL macro
Ramsay Jones authored
391 /* The sentinel attribute is valid from gcc version 4.0 */
392 #if defined(__GNUC__) && (__GNUC__ >= 4)
393 #define LAST_ARG_MUST_BE_NULL __attribute__((sentinel))
394 #else
395 #define LAST_ARG_MUST_BE_NULL
396 #endif
397
51ea551 make sure byte swapping is optimal for git
Nicolas Pitre authored
398 #include "compat/bswap.h"
399
cebcab1 @pclouds Makefile: add USE_WILDMATCH to use wildmatch as fnmatch
pclouds authored
400 #include "wildmatch.h"
401
9ccc0c0 @rsahlberg wrapper.c: add a new function unlink_or_msg
rsahlberg authored
402 struct strbuf;
403
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
404 /* General helper functions */
ebaa79f @j6t Make report() from usage.c public as vreportf() and use it.
j6t authored
405 extern void vreportf(const char *prefix, const char *err, va_list params);
a4f3131 @kusma increase portability of NORETURN declarations
kusma authored
406 extern NORETURN void usage(const char *err);
64b1cb7 @jrn Introduce usagef() that takes a printf-style format
jrn authored
407 extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
a4f3131 @kusma increase portability of NORETURN declarations
kusma authored
408 extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
409 extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
410 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
411 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
412
f2be034 @Benabik OS X: Fix redeclaration of die warning
Benabik authored
413 #ifndef NO_OPENSSL
414 #ifdef APPLE_COMMON_CRYPTO
415 #include "compat/apple-common-crypto.h"
416 #else
417 #include <openssl/evp.h>
418 #include <openssl/hmac.h>
419 #endif /* APPLE_COMMON_CRYPTO */
420 #include <openssl/x509v3.h>
421 #endif /* NO_OPENSSL */
422
e208f9c @peff make error()'s constant return value more visible
peff authored
423 /*
424 * Let callers be aware of the constant return value; this can help
9798f7e @kraai Use __VA_ARGS__ for all of error's arguments
kraai authored
425 * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though,
426 * because some compilers may not support variadic macros. Since we're only
427 * trying to help gcc, anyway, it's OK; other compilers will fall back to
428 * using the function as usual.
e208f9c @peff make error()'s constant return value more visible
peff authored
429 */
ff0a80a @peff let clang use the constant-return error() macro
peff authored
430 #if defined(__GNUC__)
87fe5df @peff inline constant return from error() function
peff authored
431 static inline int const_error(void)
432 {
433 return -1;
434 }
435 #define error(...) (error(__VA_ARGS__), const_error())
e208f9c @peff make error()'s constant return value more visible
peff authored
436 #endif
437
18660bc @kusma add NORETURN_PTR for function pointers
kusma authored
438 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
439 extern void set_error_routine(void (*routine)(const char *err, va_list params));
c19a490 @peff usage: allow pluggable die-recursion checks
peff authored
440 extern void set_die_is_recursing_routine(int (*routine)(void));
3b331e9 @peff vreportf: report to arbitrary filehandles
peff authored
441 extern void set_error_handle(FILE *);
39a3f5e Customizable error handlers
Petr Baudis authored
442
9566231 @chriscool strbuf: introduce starts_with() and ends_with()
chriscool authored
443 extern int starts_with(const char *str, const char *prefix);
698a68b @gitster Uninline prefixcmp()
gitster authored
444
cf4fff5 @peff refactor skip_prefix to return a boolean
peff authored
445 /*
446 * If the string "str" begins with the string found in "prefix", return 1.
447 * The "out" parameter is set to "str + strlen(prefix)" (i.e., to the point in
448 * the string right after the prefix).
449 *
450 * Otherwise, return 0 and leave "out" untouched.
451 *
452 * Examples:
453 *
454 * [extract branch name, fail if not a branch]
455 * if (!skip_prefix(ref, "refs/heads/", &branch)
456 * return -1;
457 *
458 * [skip prefix if present, otherwise use whole string]
459 * skip_prefix(name, "refs/heads/", &name);
460 */
461 static inline int skip_prefix(const char *str, const char *prefix,
462 const char **out)
fbca583 Move parse-options's skip_prefix() to git-compat-util.h
Miklos Vajna authored
463 {
ba399c4 skip_prefix(): scan prefix only once
David Kastrup authored
464 do {
cf4fff5 @peff refactor skip_prefix to return a boolean
peff authored
465 if (!*prefix) {
466 *out = str;
467 return 1;
468 }
ba399c4 skip_prefix(): scan prefix only once
David Kastrup authored
469 } while (*str++ == *prefix++);
cf4fff5 @peff refactor skip_prefix to return a boolean
peff authored
470 return 0;
fbca583 Move parse-options's skip_prefix() to git-compat-util.h
Miklos Vajna authored
471 }
472
35480f0 @peff add strip_suffix function
peff authored
473 /*
474 * If buf ends with suffix, return 1 and subtract the length of the suffix
475 * from *len. Otherwise, return 0 and leave *len untouched.
476 */
477 static inline int strip_suffix_mem(const char *buf, size_t *len,
478 const char *suffix)
479 {
480 size_t suflen = strlen(suffix);
481 if (*len < suflen || memcmp(buf + (*len - suflen), suffix, suflen))
482 return 0;
483 *len -= suflen;
484 return 1;
485 }
486
487 /*
488 * If str ends with suffix, return 1 and set *len to the size of the string
489 * without the suffix. Otherwise, return 0 and set *len to the size of the
490 * string.
491 *
492 * Note that we do _not_ NUL-terminate str to the new length.
493 */
494 static inline int strip_suffix(const char *str, const char *suffix, size_t *len)
495 {
496 *len = strlen(str);
497 return strip_suffix_mem(str, len, suffix);
498 }
499
f52a35f @peff implement ends_with via strip_suffix
peff authored
500 static inline int ends_with(const char *str, const char *suffix)
501 {
502 size_t len;
503 return strip_suffix(str, suffix, &len);
504 }
505
b130a72 @sothis MinGW: implement mmap
sothis authored
506 #if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
507
508 #ifndef PROT_READ
509 #define PROT_READ 1
510 #define PROT_WRITE 2
511 #define MAP_PRIVATE 1
512 #endif
513
d677912 @spearce Rename gitfakemmap to git_mmap.
spearce authored
514 #define mmap git_mmap
515 #define munmap git_munmap
516 extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
517 extern int git_munmap(void *start, size_t length);
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
518
b130a72 @sothis MinGW: implement mmap
sothis authored
519 #else /* NO_MMAP || USE_WIN32_MMAP */
520
521 #include <sys/mman.h>
522
523 #endif /* NO_MMAP || USE_WIN32_MMAP */
524
525 #ifdef NO_MMAP
526
5faaf24 Make sure packedgitwindowsize is multiple of (pagesize * 2)
Junio C Hamano authored
527 /* This value must be multiple of (pagesize * 2) */
8c82534 @spearce Default core.packdGitWindowSize to 1 MiB if NO_MMAP.
spearce authored
528 #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
529
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
530 #else /* NO_MMAP */
531
5faaf24 Make sure packedgitwindowsize is multiple of (pagesize * 2)
Junio C Hamano authored
532 /* This value must be multiple of (pagesize * 2) */
22bac0e @spearce Increase packedGit{Limit,WindowSize} on 64 bit systems.
spearce authored
533 #define DEFAULT_PACKED_GIT_WINDOW_SIZE \
534 (sizeof(void*) >= 8 \
535 ? 1 * 1024 * 1024 * 1024 \
536 : 32 * 1024 * 1024)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
537
538 #endif /* NO_MMAP */
539
fcf3a21 git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
Gary V. Vaughan authored
540 #ifndef MAP_FAILED
541 #define MAP_FAILED ((void *)-1)
542 #endif
543
fdb2a2a @gitster compat: introduce on_disk_bytes()
gitster authored
544 #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
545 #define on_disk_bytes(st) ((st).st_size)
546 #else
547 #define on_disk_bytes(st) ((st).st_blocks * 512)
548 #endif
549
d543d9c @dm0- compat: convert modes to use portable file type values
dm0- authored
550 #ifdef NEEDS_MODE_TRANSLATION
551 #undef S_IFMT
552 #undef S_IFREG
553 #undef S_IFDIR
554 #undef S_IFLNK
555 #undef S_IFBLK
556 #undef S_IFCHR
557 #undef S_IFIFO
558 #undef S_IFSOCK
559 #define S_IFMT 0170000
560 #define S_IFREG 0100000
561 #define S_IFDIR 0040000
562 #define S_IFLNK 0120000
563 #define S_IFBLK 0060000
564 #define S_IFCHR 0020000
565 #define S_IFIFO 0010000
566 #define S_IFSOCK 0140000
567 #ifdef stat
568 #undef stat
569 #endif
570 #define stat(path, buf) git_stat(path, buf)
571 extern int git_stat(const char *, struct stat *);
572 #ifdef fstat
573 #undef fstat
574 #endif
575 #define fstat(fd, buf) git_fstat(fd, buf)
576 extern int git_fstat(int, struct stat *);
577 #ifdef lstat
578 #undef lstat
579 #endif
580 #define lstat(path, buf) git_lstat(path, buf)
581 extern int git_lstat(const char *, struct stat *);
582 #endif
583
22bac0e @spearce Increase packedGit{Limit,WindowSize} on 64 bit systems.
spearce authored
584 #define DEFAULT_PACKED_GIT_LIMIT \
8f77442 @dscho Squelch warning about an integer overflow
dscho authored
585 ((1024L * 1024L) * (size_t)(sizeof(void*) >= 8 ? 8192 : 256))
8c82534 @spearce Default core.packdGitWindowSize to 1 MiB if NO_MMAP.
spearce authored
586
6900679 Replacing the system call pread() with lseek()/xread()/lseek() sequence.
Stefan-W. Hahn authored
587 #ifdef NO_PREAD
588 #define pread git_pread
589 extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
590 #endif
14086b0 @sprohaska compat/pread.c: Add a forward declaration to fix a warning
sprohaska authored
591 /*
592 * Forward decl that will remind us if its twin in cache.h changes.
593 * This function is used in compat/pread.c. But we can't include
594 * cache.h there.
595 */
596 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
597
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
598 #ifdef NO_SETENV
599 #define setenv gitsetenv
600 extern int gitsetenv(const char *, const char *, int);
601 #endif
602
ca5bb5d @spearce Define compat version of mkdtemp for systems lacking it
spearce authored
603 #ifdef NO_MKDTEMP
604 #define mkdtemp gitmkdtemp
605 extern char *gitmkdtemp(char *);
606 #endif
607
0620b39 @davvid compat: add a mkstemps() compatibility function
davvid authored
608 #ifdef NO_MKSTEMPS
609 #define mkstemps gitmkstemps
610 extern int gitmkstemps(char *, int);
611 #endif
612
731043f Add compat/unsetenv.c .
Jason Riedy authored
613 #ifdef NO_UNSETENV
614 #define unsetenv gitunsetenv
615 extern void gitunsetenv(const char *);
616 #endif
617
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
618 #ifdef NO_STRCASESTR
619 #define strcasestr gitstrcasestr
620 extern char *gitstrcasestr(const char *haystack, const char *needle);
621 #endif
622
817151e Rename safe_strncpy() to strlcpy().
Peter Eriksen authored
623 #ifdef NO_STRLCPY
624 #define strlcpy gitstrlcpy
625 extern size_t gitstrlcpy(char *, const char *, size_t);
626 #endif
627
bc6b4f5 Add a compat/strtoumax.c for Solaris 8.
Jason Riedy authored
628 #ifdef NO_STRTOUMAX
629 #define strtoumax gitstrtoumax
630 extern uintmax_t gitstrtoumax(const char *, char **, int);
97000ba @j6t Compatibility: declare strtoimax() under NO_STRTOUMAX
j6t authored
631 #define strtoimax gitstrtoimax
632 extern intmax_t gitstrtoimax(const char *, char **, int);
bc6b4f5 Add a compat/strtoumax.c for Solaris 8.
Jason Riedy authored
633 #endif
634
fa0c87c @raalkml Add a local implementation of hstrerror for the system which do not h…
raalkml authored
635 #ifdef NO_HSTRERROR
636 #define hstrerror githstrerror
637 extern const char *githstrerror(int herror);
638 #endif
639
b21b9f1 add memmem()
René Scharfe authored
640 #ifdef NO_MEMMEM
641 #define memmem gitmemmem
642 void *gitmemmem(const void *haystack, size_t haystacklen,
643 const void *needle, size_t needlelen);
644 #endif
645
40036be @kraai Port to QNX
kraai authored
646 #ifdef NO_GETPAGESIZE
647 #define getpagesize() sysconf(_SC_PAGESIZE)
648 #endif
649
cba2252 Add compat/fopen.c which returns NULL on attempt to open directory
Brandon Casey authored
650 #ifdef FREAD_READS_DIRECTORIES
c5445fe compat-util: avoid macro redefinition warning
Johannes Sixt authored
651 #ifdef fopen
652 #undef fopen
653 #endif
cba2252 Add compat/fopen.c which returns NULL on attempt to open directory
Brandon Casey authored
654 #define fopen(a,b) git_fopen(a,b)
655 extern FILE *git_fopen(const char*, const char*);
656 #endif
657
c4582f9 Add compat/snprintf.c for systems that return bogus
Michal Rokos authored
658 #ifdef SNPRINTF_RETURNS_BOGUS
ab03803 @tsuna git-compat-util.h: #undef (v)snprintf before #define them
tsuna authored
659 #ifdef snprintf
660 #undef snprintf
661 #endif
c4582f9 Add compat/snprintf.c for systems that return bogus
Michal Rokos authored
662 #define snprintf git_snprintf
663 extern int git_snprintf(char *str, size_t maxsize,
664 const char *format, ...);
ab03803 @tsuna git-compat-util.h: #undef (v)snprintf before #define them
tsuna authored
665 #ifdef vsnprintf
666 #undef vsnprintf
667 #endif
c4582f9 Add compat/snprintf.c for systems that return bogus
Michal Rokos authored
668 #define vsnprintf git_vsnprintf
669 extern int git_vsnprintf(char *str, size_t maxsize,
670 const char *format, va_list ap);
671 #endif
672
726c8ef Fix preprocessor logic that determines the availablity of strchrnul().
Johannes Sixt authored
673 #ifdef __GLIBC_PREREQ
674 #if __GLIBC_PREREQ(2, 1)
675 #define HAVE_STRCHRNUL
137c6ea @jrn compat: add mempcpy()
jrn authored
676 #define HAVE_MEMPCPY
726c8ef Fix preprocessor logic that determines the availablity of strchrnul().
Johannes Sixt authored
677 #endif
678 #endif
679
680 #ifndef HAVE_STRCHRNUL
659c69c Add strchrnul()
René Scharfe authored
681 #define strchrnul gitstrchrnul
9e79f00 @ageric Simplify strchrnul() compat code
ageric authored
682 static inline char *gitstrchrnul(const char *s, int c)
683 {
684 while (*s && *s != c)
685 s++;
686 return (char *)s;
687 }
659c69c Add strchrnul()
René Scharfe authored
688 #endif
689
137c6ea @jrn compat: add mempcpy()
jrn authored
690 #ifndef HAVE_MEMPCPY
691 #define mempcpy gitmempcpy
692 static inline void *gitmempcpy(void *dest, const void *src, size_t n)
693 {
694 return (char *)memcpy(dest, src, n) + n;
695 }
696 #endif
697
da523cc @dotzen compat: add inet_pton and inet_ntop prototypes
dotzen authored
698 #ifdef NO_INET_PTON
699 int inet_pton(int af, const char *src, void *dst);
700 #endif
701
702 #ifdef NO_INET_NTOP
703 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
704 #endif
705
0f4b6db @etbuira Handle atexit list internaly for unthreaded builds
etbuira authored
706 #ifdef NO_PTHREADS
707 #define atexit git_atexit
708 extern int git_atexit(void (*handler)(void));
709 #endif
710
7c3ecb3 @drafnel Don't close pack fd when free'ing pack windows
drafnel authored
711 extern void release_pack_memory(size_t);
97bfeb3 @spearce Release pack windows before reporting out of memory.
spearce authored
712
851c34b @j6t Have set_try_to_free_routine return the previous routine
j6t authored
713 typedef void (*try_to_free_t)(size_t);
714 extern try_to_free_t set_try_to_free_routine(try_to_free_t);
a9a7463 @npitre Make xmalloc and xrealloc thread-safe
npitre authored
715
61f76a3 Portable alloca for Git
Kirill Smelkov authored
716 #ifdef HAVE_ALLOCA_H
717 # include <alloca.h>
718 # define xalloca(size) (alloca(size))
719 # define xalloca_free(p) do {} while (0)
720 #else
721 # define xalloca(size) (xmalloc(size))
722 # define xalloca_free(p) (free(p))
723 #endif
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
724 extern char *xstrdup(const char *str);
725 extern void *xmalloc(size_t size);
5bf9219 Add xmallocz()
Ilari Liusvaara authored
726 extern void *xmallocz(size_t size);
f8bb1d9 @pclouds wrapper.c: introduce gentle xmallocz that does not die()
pclouds authored
727 extern void *xmallocz_gently(size_t size);
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
728 extern void *xmemdupz(const void *data, size_t len);
729 extern char *xstrndup(const char *str, size_t len);
730 extern void *xrealloc(void *ptr, size_t size);
731 extern void *xcalloc(size_t nmemb, size_t size);
732 extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
1570856 @peff config.c: avoid xmmap error messages
peff authored
733 extern void *xmmap_gently(void *start, size_t length, int prot, int flags, int fd, off_t offset);
3ff53df @pyokagan wrapper: implement xopen()
pyokagan authored
734 extern int xopen(const char *path, int flags, ...);
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
735 extern ssize_t xread(int fd, void *buf, size_t len);
736 extern ssize_t xwrite(int fd, const void *buf, size_t len);
9aa91af wrapper.c: add xpread() similar to xread()
Yiannis Marangos authored
737 extern ssize_t xpread(int fd, void *buf, size_t len, off_t offset);
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
738 extern int xdup(int fd);
260eec2 @pyokagan wrapper: implement xfopen()
pyokagan authored
739 extern FILE *xfopen(const char *path, const char *mode);
112db55 @torvalds Shrink the git binary a bit by avoiding unnecessary inline functions
torvalds authored
740 extern FILE *xfdopen(int fd, const char *mode);
741 extern int xmkstemp(char *template);
463db9b @jrn wrapper: move odb_* to environment.c
jrn authored
742 extern int xmkstemp_mode(char *template, int mode);
6e180cd @gitster Make sure objects/pack exists before creating a new pack
gitster authored
743 extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
8640d49 @pclouds environment.c: fix constness for odb_pack_keep()
pclouds authored
744 extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1);
aa14e98 wrapper: add xgetcwd()
René Scharfe authored
745 extern char *xgetcwd(void);
79d7582 @dscho commit: allow editing the commit message even in shared repos
dscho authored
746 extern FILE *fopen_for_writing(const char *path);
f21a47b Introduces xmkstemp()
Luiz Fernando N. Capitulino authored
747
3ac22f8 add macro REALLOC_ARRAY
René Scharfe authored
748 #define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), (alloc) * sizeof(*(x)))
749
d64ea0f @peff git-compat-util: add xstrdup_or_null helper
peff authored
750 static inline char *xstrdup_or_null(const char *str)
751 {
752 return str ? xstrdup(str) : NULL;
753 }
754
dc49cd7 @spearce Cast 64 bit off_t to 32 bit size_t
spearce authored
755 static inline size_t xsize_t(off_t len)
756 {
46be82d @trast xsize_t: check whether we lose bits
trast authored
757 if (len > (size_t) len)
758 die("Cannot handle files this big");
dc49cd7 @spearce Cast 64 bit off_t to 32 bit size_t
spearce authored
759 return (size_t)len;
760 }
761
7b03c89 @peff add xsnprintf helper function
peff authored
762 __attribute__((format (printf, 3, 4)))
763 extern int xsnprintf(char *dst, size_t max, const char *fmt, ...);
764
f1589d1 ctype.c: Fix a sparse warning
Ramsay Jones authored
765 /* in ctype.c, for kwset users */
189c860 @bdwalton kwset: use unsigned char to store values with high-bit set
bdwalton authored
766 extern const unsigned char tolower_trans_tbl[256];
f1589d1 ctype.c: Fix a sparse warning
Ramsay Jones authored
767
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
768 /* Sane ctype - no locale, and works with signed chars */
c2e9364 cleanup: add isascii()
René Scharfe authored
769 #undef isascii
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
770 #undef isspace
771 #undef isdigit
772 #undef isalpha
773 #undef isalnum
0fcec2c format-patch: make rfc2047 encoding more strict
Jan H. Schönherr authored
774 #undef isprint
43ccdf5 ctype: implement islower/isupper macro
Namhyung Kim authored
775 #undef islower
776 #undef isupper
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
777 #undef tolower
778 #undef toupper
1c149ab @pclouds ctype: support iscntrl, ispunct, isxdigit and isprint
pclouds authored
779 #undef iscntrl
780 #undef ispunct
781 #undef isxdigit
2adf724 @gitster Merge branch 'nd/wildmatch'
gitster authored
782
ca5ab7d @pclouds ctype: make sane_ctype[] const array
pclouds authored
783 extern const unsigned char sane_ctype[256];
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
784 #define GIT_SPACE 0x01
785 #define GIT_DIGIT 0x02
786 #define GIT_ALPHA 0x04
8cc3299 Change NUL char handling of isspecial()
René Scharfe authored
787 #define GIT_GLOB_SPECIAL 0x08
f9b7cce Add is_regex_special()
René Scharfe authored
788 #define GIT_REGEX_SPECIAL 0x10
2f6c976 @gitster magic pathspec: futureproof shorthand form
gitster authored
789 #define GIT_PATHSPEC_MAGIC 0x20
1c149ab @pclouds ctype: support iscntrl, ispunct, isxdigit and isprint
pclouds authored
790 #define GIT_CNTRL 0x40
791 #define GIT_PUNCT 0x80
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
792 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
c2e9364 cleanup: add isascii()
René Scharfe authored
793 #define isascii(x) (((x) & ~0x7f) == 0)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
794 #define isspace(x) sane_istest(x,GIT_SPACE)
795 #define isdigit(x) sane_istest(x,GIT_DIGIT)
796 #define isalpha(x) sane_istest(x,GIT_ALPHA)
797 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
0fcec2c format-patch: make rfc2047 encoding more strict
Jan H. Schönherr authored
798 #define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
43ccdf5 ctype: implement islower/isupper macro
Namhyung Kim authored
799 #define islower(x) sane_iscase(x, 1)
800 #define isupper(x) sane_iscase(x, 0)
8cc3299 Change NUL char handling of isspecial()
René Scharfe authored
801 #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
f9b7cce Add is_regex_special()
René Scharfe authored
802 #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
1c149ab @pclouds ctype: support iscntrl, ispunct, isxdigit and isprint
pclouds authored
803 #define iscntrl(x) (sane_istest(x,GIT_CNTRL))
804 #define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
805 GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
50a7177 @peff isxdigit: cast input to unsigned char
peff authored
806 #define isxdigit(x) (hexval_table[(unsigned char)(x)] != -1)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
807 #define tolower(x) sane_case((unsigned char)(x), 0x20)
808 #define toupper(x) sane_case((unsigned char)(x), 0)
2f6c976 @gitster magic pathspec: futureproof shorthand form
gitster authored
809 #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
810
811 static inline int sane_case(int x, int high)
812 {
813 if (sane_istest(x, GIT_ALPHA))
814 x = (x & ~0x20) | high;
815 return x;
816 }
817
43ccdf5 ctype: implement islower/isupper macro
Namhyung Kim authored
818 static inline int sane_iscase(int x, int is_lower)
819 {
820 if (!sane_istest(x, GIT_ALPHA))
821 return 0;
822
823 if (is_lower)
824 return (x & 0x20) != 0;
825 else
826 return (x & 0x20) == 0;
827 }
828
6aead43 @meyering sscanf/strtoul: parse integers robustly
meyering authored
829 static inline int strtoul_ui(char const *s, int base, unsigned int *result)
830 {
831 unsigned long ul;
832 char *p;
833
834 errno = 0;
e6f2599 @moy strtoul_ui: reject negative values
moy authored
835 /* negative values would be accepted by strtoul */
836 if (strchr(s, '-'))
837 return -1;
6aead43 @meyering sscanf/strtoul: parse integers robustly
meyering authored
838 ul = strtoul(s, &p, base);
839 if (errno || *p || p == s || (unsigned int) ul != ul)
840 return -1;
841 *result = ul;
842 return 0;
843 }
844
7791ecb @gitster revert/cherry-pick: work on merge commits as well
gitster authored
845 static inline int strtol_i(char const *s, int base, int *result)
846 {
847 long ul;
848 char *p;
849
850 errno = 0;
851 ul = strtol(s, &p, base);
852 if (errno || *p || p == s || (int) ul != ul)
853 return -1;
854 *result = ul;
855 return 0;
856 }
857
43fe901 @bdowning compat: Add simplified merge sort implementation from glibc
bdowning authored
858 #ifdef INTERNAL_QSORT
859 void git_qsort(void *base, size_t nmemb, size_t size,
860 int(*compar)(const void *, const void *));
861 #define qsort git_qsort
862 #endif
863
81a24b5 @raalkml Do not use GUID on dir in git init --shared=all on FreeBSD
raalkml authored
864 #ifndef DIR_HAS_BSD_GROUP_SEMANTICS
865 # define FORCE_DIR_SET_GID S_ISGID
866 #else
867 # define FORCE_DIR_SET_GID 0
868 #endif
869
c06ff49 Record ns-timestamps if possible, but do not use it without USE_NSEC
Kjetil Barvik authored
870 #ifdef NO_NSEC
871 #undef USE_NSEC
872 #define ST_CTIME_NSEC(st) 0
873 #define ST_MTIME_NSEC(st) 0
874 #else
c567383 @Benabik Create USE_ST_TIMESPEC and turn it on for Darwin
Benabik authored
875 #ifdef USE_ST_TIMESPEC
876 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
877 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
878 #else
c06ff49 Record ns-timestamps if possible, but do not use it without USE_NSEC
Kjetil Barvik authored
879 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
880 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
881 #endif
c567383 @Benabik Create USE_ST_TIMESPEC and turn it on for Darwin
Benabik authored
882 #endif
c06ff49 Record ns-timestamps if possible, but do not use it without USE_NSEC
Kjetil Barvik authored
883
34779c5 @j6t Windows: Skip fstat/lstat optimization in write_entry()
j6t authored
884 #ifdef UNRELIABLE_FSTAT
885 #define fstat_is_reliable() 0
886 #else
887 #define fstat_is_reliable() 1
888 #endif
889
ab8632a @peff compat: provide a fallback va_copy definition
peff authored
890 #ifndef va_copy
26db0f2 @jrn compat: fall back on __va_copy if available
jrn authored
891 /*
892 * Since an obvious implementation of va_list would be to make it a
893 * pointer into the stack frame, a simple assignment will work on
894 * many systems. But let's try to be more portable.
895 */
896 #ifdef __va_copy
897 #define va_copy(dst, src) __va_copy(dst, src)
898 #else
899 #define va_copy(dst, src) ((dst) = (src))
900 #endif
ab8632a @peff compat: provide a fallback va_copy definition
peff authored
901 #endif
902
f51140c @dm0- git-compat-util.h: support variadic macros with the XL C compiler
dm0- authored
903 #if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__C99_MACRO_WITH_VA_ARGS)
e05bed9 @kblees trace: add 'file:line' to all trace output
kblees authored
904 #define HAVE_VARIADIC_MACROS 1
905 #endif
906
fc71db3 @raalkml Introduce an unlink(2) wrapper which gives warning if unlink failed
raalkml authored
907 /*
908 * Preserves errno, prints a message, but gives no warning for ENOENT.
1054af7 @rsahlberg wrapper.c: remove/unlink_or_warn: simplify, treat ENOENT as success
rsahlberg authored
909 * Returns 0 on success, which includes trying to unlink an object that does
910 * not exist.
fc71db3 @raalkml Introduce an unlink(2) wrapper which gives warning if unlink failed
raalkml authored
911 */
912 int unlink_or_warn(const char *path);
9ccc0c0 @rsahlberg wrapper.c: add a new function unlink_or_msg
rsahlberg authored
913 /*
914 * Tries to unlink file. Returns 0 if unlink succeeded
915 * or the file already didn't exist. Returns -1 and
916 * appends a message to err suitable for
917 * 'error("%s", err->buf)' on error.
918 */
919 int unlink_or_msg(const char *file, struct strbuf *err);
d172329 @pcc Implement the rmdir_or_warn function
pcc authored
920 /*
1054af7 @rsahlberg wrapper.c: remove/unlink_or_warn: simplify, treat ENOENT as success
rsahlberg authored
921 * Preserves errno, prints a message, but gives no warning for ENOENT.
922 * Returns 0 on success, which includes trying to remove a directory that does
923 * not exist.
d172329 @pcc Implement the rmdir_or_warn function
pcc authored
924 */
925 int rmdir_or_warn(const char *path);
80d706a @pcc Introduce remove_or_warn function
pcc authored
926 /*
927 * Calls the correct function out of {unlink,rmdir}_or_warn based on
928 * the supplied file mode.
929 */
930 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
931
e5c52c9 @jrn config, gitignore: failure to access with ENOTDIR is ok
jrn authored
932 /*
933 * Call access(2), but warn for any error except "missing file"
934 * (ENOENT or ENOTDIR).
935 */
4698c8f @jrn config: allow inaccessible configuration under $HOME
jrn authored
936 #define ACCESS_EACCES_OK (1U << 0)
937 int access_or_warn(const char *path, int mode, unsigned flag);
938 int access_or_die(const char *path, int mode, unsigned flag);
ba8bd83 @peff config: warn on inaccessible files
peff authored
939
55b38a4 @gitster warn_on_inaccessible(): a helper to warn on inaccessible paths
gitster authored
940 /* Warn on an inaccessible file that ought to be accessible */
941 void warn_on_inaccessible(const char *path);
942
6654754 @peff date: recognize bogus FreeBSD gmtime output
peff authored
943 #ifdef GMTIME_UNRELIABLE_ERRORS
944 struct tm *git_gmtime(const time_t *);
945 struct tm *git_gmtime_r(const time_t *, struct tm *);
946 #define gmtime git_gmtime
947 #define gmtime_r git_gmtime_r
948 #endif
949
290c8e7 @mackyle gettext.h: add parentheses around N_ expansion if supported
mackyle authored
950 #if !defined(USE_PARENS_AROUND_GETTEXT_N) && defined(__GNUC__)
951 #define USE_PARENS_AROUND_GETTEXT_N 1
952 #endif
953
1b56cdf @mackyle git-compat-util.h: move SHELL_PATH default into header
mackyle authored
954 #ifndef SHELL_PATH
955 # define SHELL_PATH "/bin/sh"
956 #endif
957
f43cce2 @peff git-compat-util: add fallbacks for unlocked stdio
peff authored
958 #ifndef _POSIX_THREAD_SAFE_FUNCTIONS
959 #define flockfile(fh)
960 #define funlockfile(fh)
961 #define getc_unlocked(fh) getc(fh)
962 #endif
963
4050c0d Clean up compatibility definitions.
Junio C Hamano authored
964 #endif
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