| #ifndef GIT_COMPAT_UTIL_H |
| #define GIT_COMPAT_UTIL_H |
| |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <limits.h> |
| #include <sys/param.h> |
| #include <netinet/in.h> |
| #include <sys/types.h> |
| #include <dirent.h> |
| |
| #ifdef __GNUC__ |
| #define NORETURN __attribute__((__noreturn__)) |
| #else |
| #define NORETURN |
| #ifndef __attribute__ |
| #define __attribute__(x) |
| #endif |
| #endif |
| |
| /* General helper functions */ |
| extern void usage(const char *err) NORETURN; |
| extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); |
| extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
| |
| #ifdef NO_MMAP |
| |
| #ifndef PROT_READ |
| #define PROT_READ 1 |
| #define PROT_WRITE 2 |
| #define MAP_PRIVATE 1 |
| #define MAP_FAILED ((void*)-1) |
| #endif |
| |
| #define mmap gitfakemmap |
| #define munmap gitfakemunmap |
| extern void *gitfakemmap(void *start, size_t length, int prot , int flags, int fd, off_t offset); |
| extern int gitfakemunmap(void *start, size_t length); |
| |
| #else /* NO_MMAP */ |
| |
| #include <sys/mman.h> |
| |
| #endif /* NO_MMAP */ |
| |
| #ifdef NO_SETENV |
| #define setenv gitsetenv |
| extern int gitsetenv(const char *, const char *, int); |
| #endif |
| |
| #ifdef NO_STRCASESTR |
| #define strcasestr gitstrcasestr |
| extern char *gitstrcasestr(const char *haystack, const char *needle); |
| #endif |
| |
| static inline void *xmalloc(size_t size) |
| { |
| void *ret = malloc(size); |
| if (!ret) |
| die("Out of memory, malloc failed"); |
| return ret; |
| } |
| |
| static inline void *xrealloc(void *ptr, size_t size) |
| { |
| void *ret = realloc(ptr, size); |
| if (!ret) |
| die("Out of memory, realloc failed"); |
| return ret; |
| } |
| |
| static inline void *xcalloc(size_t nmemb, size_t size) |
| { |
| void *ret = calloc(nmemb, size); |
| if (!ret) |
| die("Out of memory, calloc failed"); |
| return ret; |
| } |
| |
| /* Sane ctype - no locale, and works with signed chars */ |
| #undef isspace |
| #undef isdigit |
| #undef isalpha |
| #undef isalnum |
| #undef tolower |
| #undef toupper |
| extern unsigned char sane_ctype[256]; |
| #define GIT_SPACE 0x01 |
| #define GIT_DIGIT 0x02 |
| #define GIT_ALPHA 0x04 |
| #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
| #define isspace(x) sane_istest(x,GIT_SPACE) |
| #define isdigit(x) sane_istest(x,GIT_DIGIT) |
| #define isalpha(x) sane_istest(x,GIT_ALPHA) |
| #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) |
| #define tolower(x) sane_case((unsigned char)(x), 0x20) |
| #define toupper(x) sane_case((unsigned char)(x), 0) |
| |
| static inline int sane_case(int x, int high) |
| { |
| if (sane_istest(x, GIT_ALPHA)) |
| x = (x & ~0x20) | high; |
| return x; |
| } |
| |
| #endif |