]>
Commit | Line | Data |
---|---|---|
4050c0df JH |
1 | #ifndef GIT_COMPAT_UTIL_H |
2 | #define GIT_COMPAT_UTIL_H | |
3 | ||
8f1d2e6f JH |
4 | #ifndef FLEX_ARRAY |
5 | #if defined(__GNUC__) && (__GNUC__ < 3) | |
6 | #define FLEX_ARRAY 0 | |
7 | #else | |
8 | #define FLEX_ARRAY /* empty */ | |
9 | #endif | |
10 | #endif | |
11 | ||
b4f2a6ac JH |
12 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) |
13 | ||
95ca1c6c | 14 | #if !defined(__APPLE__) && !defined(__FreeBSD__) |
85023577 JH |
15 | #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */ |
16 | #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */ | |
c902c9a6 | 17 | #endif |
85023577 JH |
18 | #define _GNU_SOURCE |
19 | #define _BSD_SOURCE | |
20 | ||
4050c0df JH |
21 | #include <unistd.h> |
22 | #include <stdio.h> | |
23 | #include <sys/stat.h> | |
24 | #include <fcntl.h> | |
25 | #include <stddef.h> | |
26 | #include <stdlib.h> | |
27 | #include <stdarg.h> | |
28 | #include <string.h> | |
29 | #include <errno.h> | |
30 | #include <limits.h> | |
31 | #include <sys/param.h> | |
4050c0df JH |
32 | #include <sys/types.h> |
33 | #include <dirent.h> | |
85023577 JH |
34 | #include <sys/time.h> |
35 | #include <time.h> | |
36 | #include <signal.h> | |
37 | #include <sys/wait.h> | |
38 | #include <fnmatch.h> | |
39 | #include <sys/poll.h> | |
40 | #include <sys/socket.h> | |
41 | #include <assert.h> | |
42 | #include <regex.h> | |
43 | #include <netinet/in.h> | |
44 | #include <netinet/tcp.h> | |
45 | #include <arpa/inet.h> | |
46 | #include <netdb.h> | |
47 | #include <pwd.h> | |
48 | #include <grp.h> | |
49 | ||
50 | #ifndef NO_ICONV | |
51 | #include <iconv.h> | |
52 | #endif | |
4050c0df | 53 | |
d0c2449f JH |
54 | /* On most systems <limits.h> would have given us this, but |
55 | * not on some systems (e.g. GNU/Hurd). | |
56 | */ | |
57 | #ifndef PATH_MAX | |
58 | #define PATH_MAX 4096 | |
59 | #endif | |
60 | ||
4050c0df JH |
61 | #ifdef __GNUC__ |
62 | #define NORETURN __attribute__((__noreturn__)) | |
63 | #else | |
64 | #define NORETURN | |
65 | #ifndef __attribute__ | |
66 | #define __attribute__(x) | |
67 | #endif | |
68 | #endif | |
69 | ||
70 | /* General helper functions */ | |
71 | extern void usage(const char *err) NORETURN; | |
72 | extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); | |
73 | extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
fa39b6b5 | 74 | extern void warn(const char *err, ...) __attribute__((format (printf, 1, 2))); |
4050c0df | 75 | |
39a3f5ea PB |
76 | extern void set_usage_routine(void (*routine)(const char *err) NORETURN); |
77 | extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); | |
78 | extern void set_error_routine(void (*routine)(const char *err, va_list params)); | |
fa39b6b5 | 79 | extern void set_warn_routine(void (*routine)(const char *warn, va_list params)); |
39a3f5ea | 80 | |
4050c0df JH |
81 | #ifdef NO_MMAP |
82 | ||
83 | #ifndef PROT_READ | |
84 | #define PROT_READ 1 | |
85 | #define PROT_WRITE 2 | |
86 | #define MAP_PRIVATE 1 | |
87 | #define MAP_FAILED ((void*)-1) | |
88 | #endif | |
89 | ||
d6779124 SP |
90 | #define mmap git_mmap |
91 | #define munmap git_munmap | |
92 | extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); | |
93 | extern int git_munmap(void *start, size_t length); | |
4050c0df JH |
94 | |
95 | #else /* NO_MMAP */ | |
96 | ||
97 | #include <sys/mman.h> | |
98 | ||
99 | #endif /* NO_MMAP */ | |
100 | ||
101 | #ifdef NO_SETENV | |
102 | #define setenv gitsetenv | |
103 | extern int gitsetenv(const char *, const char *, int); | |
104 | #endif | |
105 | ||
731043fd JR |
106 | #ifdef NO_UNSETENV |
107 | #define unsetenv gitunsetenv | |
108 | extern void gitunsetenv(const char *); | |
109 | #endif | |
110 | ||
4050c0df JH |
111 | #ifdef NO_STRCASESTR |
112 | #define strcasestr gitstrcasestr | |
113 | extern char *gitstrcasestr(const char *haystack, const char *needle); | |
114 | #endif | |
115 | ||
817151e6 PE |
116 | #ifdef NO_STRLCPY |
117 | #define strlcpy gitstrlcpy | |
118 | extern size_t gitstrlcpy(char *, const char *, size_t); | |
119 | #endif | |
120 | ||
9befac47 SP |
121 | static inline char* xstrdup(const char *str) |
122 | { | |
123 | char *ret = strdup(str); | |
124 | if (!ret) | |
125 | die("Out of memory, strdup failed"); | |
126 | return ret; | |
127 | } | |
128 | ||
4050c0df JH |
129 | static inline void *xmalloc(size_t size) |
130 | { | |
131 | void *ret = malloc(size); | |
4e7a2ecc JH |
132 | if (!ret && !size) |
133 | ret = malloc(1); | |
4050c0df JH |
134 | if (!ret) |
135 | die("Out of memory, malloc failed"); | |
aa5481c1 JH |
136 | #ifdef XMALLOC_POISON |
137 | memset(ret, 0xA5, size); | |
138 | #endif | |
4050c0df JH |
139 | return ret; |
140 | } | |
141 | ||
142 | static inline void *xrealloc(void *ptr, size_t size) | |
143 | { | |
144 | void *ret = realloc(ptr, size); | |
4e7a2ecc JH |
145 | if (!ret && !size) |
146 | ret = realloc(ptr, 1); | |
4050c0df JH |
147 | if (!ret) |
148 | die("Out of memory, realloc failed"); | |
149 | return ret; | |
150 | } | |
151 | ||
152 | static inline void *xcalloc(size_t nmemb, size_t size) | |
153 | { | |
154 | void *ret = calloc(nmemb, size); | |
4e7a2ecc JH |
155 | if (!ret && (!nmemb || !size)) |
156 | ret = calloc(1, 1); | |
4050c0df JH |
157 | if (!ret) |
158 | die("Out of memory, calloc failed"); | |
159 | return ret; | |
160 | } | |
161 | ||
1c15afb9 JH |
162 | static inline ssize_t xread(int fd, void *buf, size_t len) |
163 | { | |
164 | ssize_t nr; | |
165 | while (1) { | |
166 | nr = read(fd, buf, len); | |
167 | if ((nr < 0) && (errno == EAGAIN || errno == EINTR)) | |
168 | continue; | |
169 | return nr; | |
170 | } | |
171 | } | |
172 | ||
173 | static inline ssize_t xwrite(int fd, const void *buf, size_t len) | |
174 | { | |
175 | ssize_t nr; | |
176 | while (1) { | |
177 | nr = write(fd, buf, len); | |
178 | if ((nr < 0) && (errno == EAGAIN || errno == EINTR)) | |
179 | continue; | |
180 | return nr; | |
181 | } | |
182 | } | |
183 | ||
5bb1cda5 | 184 | static inline int has_extension(const char *filename, const char *ext) |
83a2b841 | 185 | { |
5bb1cda5 RS |
186 | size_t len = strlen(filename); |
187 | size_t extlen = strlen(ext); | |
83a2b841 RS |
188 | return len > extlen && !memcmp(filename + len - extlen, ext, extlen); |
189 | } | |
190 | ||
4050c0df JH |
191 | /* Sane ctype - no locale, and works with signed chars */ |
192 | #undef isspace | |
193 | #undef isdigit | |
194 | #undef isalpha | |
195 | #undef isalnum | |
196 | #undef tolower | |
197 | #undef toupper | |
198 | extern unsigned char sane_ctype[256]; | |
199 | #define GIT_SPACE 0x01 | |
200 | #define GIT_DIGIT 0x02 | |
201 | #define GIT_ALPHA 0x04 | |
202 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) | |
203 | #define isspace(x) sane_istest(x,GIT_SPACE) | |
204 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
205 | #define isalpha(x) sane_istest(x,GIT_ALPHA) | |
206 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
207 | #define tolower(x) sane_case((unsigned char)(x), 0x20) | |
208 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
209 | ||
210 | static inline int sane_case(int x, int high) | |
211 | { | |
212 | if (sane_istest(x, GIT_ALPHA)) | |
213 | x = (x & ~0x20) | high; | |
214 | return x; | |
215 | } | |
216 | ||
217 | #endif |