1 #ifndef GIT_COMPAT_UTIL_H 2 #define GIT_COMPAT_UTIL_H 3 4 /* ANDROID_CHANGE_BEGIN */ 5 #ifndef __BIONIC__ 6 #define _FILE_OFFSET_BITS 64 7 #endif 8 /* ANDROID_CHANGE_END */ 9 10 #ifndef FLEX_ARRAY 11 /* 12 * See if our compiler is known to support flexible array members. 13 */ 14 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) 15 # define FLEX_ARRAY /* empty */ 16 #elif defined(__GNUC__) 17 # if (__GNUC__ >= 3) 18 # define FLEX_ARRAY /* empty */ 19 # else 20 # define FLEX_ARRAY 0 /* older GNU extension */ 21 # endif 22 #endif 23 24 /* 25 * Otherwise, default to safer but a bit wasteful traditional style 26 */ 27 #ifndef FLEX_ARRAY 28 # define FLEX_ARRAY 1 29 #endif 30 #endif 31 32 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 33 34 #ifdef __GNUC__ 35 #define TYPEOF(x) (__typeof__(x)) 36 #else 37 #define TYPEOF(x) 38 #endif 39 40 #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits)))) 41 #define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */ 42 43 /* Approximation of the length of the decimal representation of this type. */ 44 #define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) 45 46 #define _ALL_SOURCE 1 47 #define _GNU_SOURCE 1 48 #define _BSD_SOURCE 1 49 #define HAS_BOOL 50 51 #include <unistd.h> 52 #include <stdio.h> 53 #include <sys/stat.h> 54 /* ANDROID_CHANGE_BEGIN */ 55 #ifndef __APPLE__ 56 #include <sys/statfs.h> 57 #endif 58 /* ANDROID_CHANGE_END */ 59 #include <fcntl.h> 60 #include <stdbool.h> 61 #include <stddef.h> 62 #include <stdlib.h> 63 #include <stdarg.h> 64 #include <string.h> 65 #include <errno.h> 66 #include <limits.h> 67 #include <sys/param.h> 68 #include <sys/types.h> 69 /* ANDROID_CHANGE_BEGIN */ 70 #ifdef __BIONIC__ 71 #include <pthread.h> 72 #endif 73 /* ANDROID_CHANGE_END */ 74 #include <dirent.h> 75 #include <sys/time.h> 76 #include <time.h> 77 #include <signal.h> 78 #include <fnmatch.h> 79 #include <assert.h> 80 #include <regex.h> 81 #include <utime.h> 82 #include <sys/wait.h> 83 #include <sys/poll.h> 84 #include <sys/socket.h> 85 #include <sys/ioctl.h> 86 #include <sys/select.h> 87 #include <netinet/in.h> 88 #include <netinet/tcp.h> 89 #include <arpa/inet.h> 90 #include <netdb.h> 91 #include <pwd.h> 92 #include <inttypes.h> 93 94 /* ANDROID_CHANGE_BEGIN */ 95 #ifndef __APPLE__ 96 #include <linux/magic.h> 97 #endif 98 /* ANDROID_CHANGE_END */ 99 100 #include "types.h" 101 102 /* ANDROID_CHANGE_BEGIN */ 103 #ifndef __BIONIC__ 104 #include <sys/ttydefaults.h> 105 #endif 106 /* ANDROID_CHANGE_END */ 107 108 109 extern const char *graph_line; 110 extern const char *graph_dotted_line; 111 extern char buildid_dir[]; 112 113 /* On most systems <limits.h> would have given us this, but 114 * not on some systems (e.g. GNU/Hurd). 115 */ 116 #ifndef PATH_MAX 117 #define PATH_MAX 4096 118 #endif 119 120 #ifndef PRIuMAX 121 #define PRIuMAX "llu" 122 #endif 123 124 #ifndef PRIu32 125 #define PRIu32 "u" 126 #endif 127 128 #ifndef PRIx32 129 #define PRIx32 "x" 130 #endif 131 132 #ifndef PATH_SEP 133 #define PATH_SEP ':' 134 #endif 135 136 #ifndef STRIP_EXTENSION 137 #define STRIP_EXTENSION "" 138 #endif 139 140 #ifndef has_dos_drive_prefix 141 #define has_dos_drive_prefix(path) 0 142 #endif 143 144 #ifndef is_dir_sep 145 #define is_dir_sep(c) ((c) == '/') 146 #endif 147 148 #ifdef __GNUC__ 149 #define NORETURN __attribute__((__noreturn__)) 150 #else 151 #define NORETURN 152 #ifndef __attribute__ 153 #define __attribute__(x) 154 #endif 155 #endif 156 157 /* General helper functions */ 158 extern void usage(const char *err) NORETURN; 159 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); 160 extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); 161 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); 162 163 /* ANDROID_CHANGE_BEGIN */ 164 #if 0 165 #include "../../../include/linux/stringify.h" 166 #else 167 #include "util/include/linux/added/stringify.h" 168 #endif 169 /* ANDROID_CHANGE_END */ 170 171 #define DIE_IF(cnd) \ 172 do { if (cnd) \ 173 die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \ 174 __stringify(cnd) "\n"); \ 175 } while (0) 176 177 178 extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); 179 180 extern int prefixcmp(const char *str, const char *prefix); 181 extern void set_buildid_dir(void); 182 extern void disable_buildid_cache(void); 183 184 static inline const char *skip_prefix(const char *str, const char *prefix) 185 { 186 size_t len = strlen(prefix); 187 return strncmp(str, prefix, len) ? NULL : str + len; 188 } 189 190 #ifdef __GLIBC_PREREQ 191 #if __GLIBC_PREREQ(2, 1) 192 #define HAVE_STRCHRNUL 193 #endif 194 #endif 195 196 #ifndef HAVE_STRCHRNUL 197 #define strchrnul gitstrchrnul 198 static inline char *gitstrchrnul(const char *s, int c) 199 { 200 while (*s && *s != c) 201 s++; 202 return (char *)s; 203 } 204 #endif 205 206 /* 207 * Wrappers: 208 */ 209 extern char *xstrdup(const char *str); 210 extern void *xrealloc(void *ptr, size_t size) __attribute__((weak)); 211 212 213 static inline void *zalloc(size_t size) 214 { 215 return calloc(1, size); 216 } 217 218 static inline int has_extension(const char *filename, const char *ext) 219 { 220 size_t len = strlen(filename); 221 size_t extlen = strlen(ext); 222 223 return len > extlen && !memcmp(filename + len - extlen, ext, extlen); 224 } 225 226 /* Sane ctype - no locale, and works with signed chars */ 227 #undef isascii 228 #undef isspace 229 #undef isdigit 230 #undef isxdigit 231 #undef isalpha 232 #undef isprint 233 #undef isalnum 234 #undef tolower 235 #undef toupper 236 237 extern unsigned char sane_ctype[256]; 238 #define GIT_SPACE 0x01 239 #define GIT_DIGIT 0x02 240 #define GIT_ALPHA 0x04 241 #define GIT_GLOB_SPECIAL 0x08 242 #define GIT_REGEX_SPECIAL 0x10 243 #define GIT_PRINT_EXTRA 0x20 244 #define GIT_PRINT 0x3E 245 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) 246 #define isascii(x) (((x) & ~0x7f) == 0) 247 #define isspace(x) sane_istest(x,GIT_SPACE) 248 #define isdigit(x) sane_istest(x,GIT_DIGIT) 249 #define isxdigit(x) \ 250 (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G') 251 #define isalpha(x) sane_istest(x,GIT_ALPHA) 252 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) 253 #define isprint(x) sane_istest(x,GIT_PRINT) 254 #define tolower(x) sane_case((unsigned char)(x), 0x20) 255 #define toupper(x) sane_case((unsigned char)(x), 0) 256 257 static inline int sane_case(int x, int high) 258 { 259 if (sane_istest(x, GIT_ALPHA)) 260 x = (x & ~0x20) | high; 261 return x; 262 } 263 264 int mkdir_p(char *path, mode_t mode); 265 int copyfile(const char *from, const char *to); 266 267 s64 perf_atoll(const char *str); 268 char **argv_split(const char *str, int *argcp); 269 void argv_free(char **argv); 270 bool strglobmatch(const char *str, const char *pat); 271 bool strlazymatch(const char *str, const char *pat); 272 unsigned long convert_unit(unsigned long value, char *unit); 273 int readn(int fd, void *buf, size_t size); 274 275 #define _STR(x) #x 276 #define STR(x) _STR(x) 277 278 #endif 279
