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