1#ifndef GIT_COMPAT_UTIL_H 2#define GIT_COMPAT_UTIL_H 3 4#define _FILE_OFFSET_BITS 64 5 6#ifndef FLEX_ARRAY 7/* 8 * See if our compiler is known to support flexible array members. 9 */ 10#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) 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 25#endif 26#endif 27 28#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 29 30#ifdef __GNUC__ 31#define TYPEOF(x) (__typeof__(x)) 32#else 33#define TYPEOF(x) 34#endif 35 36#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits)))) 37#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */ 38 39/* Approximation of the length of the decimal representation of this type. */ 40#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) 41 42#define _ALL_SOURCE 1 43#define _GNU_SOURCE 1 44#define _BSD_SOURCE 1 45#define HAS_BOOL 46 47#include <unistd.h> 48#include <stdio.h> 49#include <sys/stat.h> 50#include <sys/statfs.h> 51#include <fcntl.h> 52#include <stdbool.h> 53#include <stddef.h> 54#include <stdlib.h> 55#include <stdarg.h> 56#include <string.h> 57#include <errno.h> 58#include <limits.h> 59#include <sys/param.h> 60#include <sys/types.h> 61#include <dirent.h> 62#include <sys/time.h> 63#include <time.h> 64#include <signal.h> 65#include <fnmatch.h> 66#include <assert.h> 67#include <regex.h> 68#include <utime.h> 69#include <sys/wait.h> 70#include <sys/poll.h> 71#include <sys/socket.h> 72#include <sys/ioctl.h> 73#ifndef NO_SYS_SELECT_H 74#include <sys/select.h> 75#endif 76#include <netinet/in.h> 77#include <netinet/tcp.h> 78#include <arpa/inet.h> 79#include <netdb.h> 80#include <pwd.h> 81#include <inttypes.h> 82#include "../../../include/linux/magic.h" 83#include "types.h" 84#include <sys/ttydefaults.h> 85 86#ifndef NO_ICONV 87#include <iconv.h> 88#endif 89 90extern const char *graph_line; 91extern const char *graph_dotted_line; 92extern char buildid_dir[]; 93 94/* On most systems <limits.h> would have given us this, but 95 * not on some systems (e.g. GNU/Hurd). 96 */ 97#ifndef PATH_MAX 98#define PATH_MAX 4096 99#endif 100 101#ifndef PRIuMAX 102#define PRIuMAX "llu" 103#endif 104 105#ifndef PRIu32 106#define PRIu32 "u" 107#endif 108 109#ifndef PRIx32 110#define PRIx32 "x" 111#endif 112 113#ifndef PATH_SEP 114#define PATH_SEP ':' 115#endif 116 117#ifndef STRIP_EXTENSION 118#define STRIP_EXTENSION "" 119#endif 120 121#ifndef has_dos_drive_prefix 122#define has_dos_drive_prefix(path) 0 123#endif 124 125#ifndef is_dir_sep 126#define is_dir_sep(c) ((c) == '/') 127#endif 128 129#ifdef __GNUC__ 130#define NORETURN __attribute__((__noreturn__)) 131#else 132#define NORETURN 133#ifndef __attribute__ 134#define __attribute__(x) 135#endif 136#endif 137 138/* General helper functions */ 139extern void usage(const char *err) NORETURN; 140extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); 141extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); 142extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); 143 144#include "../../../include/linux/stringify.h" 145 146#define DIE_IF(cnd) \ 147 do { if (cnd) \ 148 die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \ 149 __stringify(cnd) "\n"); \ 150 } while (0) 151 152 153extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); 154 155extern int prefixcmp(const char *str, const char *prefix); 156extern void set_buildid_dir(void); 157extern void disable_buildid_cache(void); 158 159static inline const char *skip_prefix(const char *str, const char *prefix) 160{ 161 size_t len = strlen(prefix); 162 return strncmp(str, prefix, len) ? NULL : str + len; 163} 164 165#ifdef __GLIBC_PREREQ 166#if __GLIBC_PREREQ(2, 1) 167#define HAVE_STRCHRNUL 168#endif 169#endif 170 171#ifndef HAVE_STRCHRNUL 172#define strchrnul gitstrchrnul 173static inline char *gitstrchrnul(const char *s, int c) 174{ 175 while (*s && *s != c) 176 s++; 177 return (char *)s; 178} 179#endif 180 181/* 182 * Wrappers: 183 */ 184extern char *xstrdup(const char *str); 185extern void *xrealloc(void *ptr, size_t size) __attribute__((weak)); 186 187 188static inline void *zalloc(size_t size) 189{ 190 return calloc(1, size); 191} 192 193static inline int has_extension(const char *filename, const char *ext) 194{ 195 size_t len = strlen(filename); 196 size_t extlen = strlen(ext); 197 198 return len > extlen && !memcmp(filename + len - extlen, ext, extlen); 199} 200 201/* Sane ctype - no locale, and works with signed chars */ 202#undef isascii 203#undef isspace 204#undef isdigit 205#undef isxdigit 206#undef isalpha 207#undef isprint 208#undef isalnum 209#undef tolower 210#undef toupper 211 212extern unsigned char sane_ctype[256]; 213#define GIT_SPACE 0x01 214#define GIT_DIGIT 0x02 215#define GIT_ALPHA 0x04 216#define GIT_GLOB_SPECIAL 0x08 217#define GIT_REGEX_SPECIAL 0x10 218#define GIT_PRINT_EXTRA 0x20 219#define GIT_PRINT 0x3E 220#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) 221#define isascii(x) (((x) & ~0x7f) == 0) 222#define isspace(x) sane_istest(x,GIT_SPACE) 223#define isdigit(x) sane_istest(x,GIT_DIGIT) 224#define isxdigit(x) \ 225 (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G') 226#define isalpha(x) sane_istest(x,GIT_ALPHA) 227#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) 228#define isprint(x) sane_istest(x,GIT_PRINT) 229#define tolower(x) sane_case((unsigned char)(x), 0x20) 230#define toupper(x) sane_case((unsigned char)(x), 0) 231 232static inline int sane_case(int x, int high) 233{ 234 if (sane_istest(x, GIT_ALPHA)) 235 x = (x & ~0x20) | high; 236 return x; 237} 238 239#ifndef DIR_HAS_BSD_GROUP_SEMANTICS 240# define FORCE_DIR_SET_GID S_ISGID 241#else 242# define FORCE_DIR_SET_GID 0 243#endif 244 245#ifdef NO_NSEC 246#undef USE_NSEC 247#define ST_CTIME_NSEC(st) 0 248#define ST_MTIME_NSEC(st) 0 249#else 250#ifdef USE_ST_TIMESPEC 251#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec)) 252#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec)) 253#else 254#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec)) 255#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec)) 256#endif 257#endif 258 259int mkdir_p(char *path, mode_t mode); 260int copyfile(const char *from, const char *to); 261 262s64 perf_atoll(const char *str); 263char **argv_split(const char *str, int *argcp); 264void argv_free(char **argv); 265bool strglobmatch(const char *str, const char *pat); 266bool strlazymatch(const char *str, const char *pat); 267unsigned long convert_unit(unsigned long value, char *unit); 268 269#ifndef ESC 270#define ESC 27 271#endif 272 273static inline bool is_exit_key(int key) 274{ 275 char up; 276 if (key == CTRL('c') || key == ESC) 277 return true; 278 up = toupper(key); 279 return up == 'Q'; 280} 281 282#define _STR(x) #x 283#define STR(x) _STR(x) 284 285#endif 286