diff options
Diffstat (limited to 'git-compat-util.h')
| -rw-r--r-- | git-compat-util.h | 132 |
1 files changed, 104 insertions, 28 deletions
diff --git a/git-compat-util.h b/git-compat-util.h index 7776f126d3..0b53c9a4af 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -75,7 +75,7 @@ # endif #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \ !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \ - !defined(__TANDEM) && !defined(__QNX__) + !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__) #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */ #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */ #endif @@ -116,9 +116,6 @@ #include <sys/time.h> #include <time.h> #include <signal.h> -#ifndef USE_WILDMATCH -#include <fnmatch.h> -#endif #include <assert.h> #include <regex.h> #include <utime.h> @@ -270,6 +267,10 @@ extern char *gitbasename(char *); #define has_dos_drive_prefix(path) 0 #endif +#ifndef offset_1st_component +#define offset_1st_component(path) (is_dir_sep((path)[0])) +#endif + #ifndef is_dir_sep #define is_dir_sep(c) ((c) == '/') #endif @@ -304,16 +305,7 @@ extern char *gitbasename(char *); #include "compat/bswap.h" -#ifdef USE_WILDMATCH #include "wildmatch.h" -#define FNM_PATHNAME WM_PATHNAME -#define FNM_CASEFOLD WM_CASEFOLD -#define FNM_NOMATCH WM_NOMATCH -static inline int fnmatch(const char *pattern, const char *string, int flags) -{ - return wildmatch(pattern, string, flags, NULL); -} -#endif /* General helper functions */ extern void vreportf(const char *prefix, const char *err, va_list params); @@ -342,21 +334,79 @@ extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))) * trying to help gcc, anyway, it's OK; other compilers will fall back to * using the function as usual. */ -#if defined(__GNUC__) && ! defined(__clang__) -#define error(...) (error(__VA_ARGS__), -1) +#if defined(__GNUC__) +static inline int const_error(void) +{ + return -1; +} +#define error(...) (error(__VA_ARGS__), const_error()) #endif extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)); extern void set_error_routine(void (*routine)(const char *err, va_list params)); extern void set_die_is_recursing_routine(int (*routine)(void)); -extern int prefixcmp(const char *str, const char *prefix); -extern int suffixcmp(const char *str, const char *suffix); +extern int starts_with(const char *str, const char *prefix); + +/* + * If the string "str" begins with the string found in "prefix", return 1. + * The "out" parameter is set to "str + strlen(prefix)" (i.e., to the point in + * the string right after the prefix). + * + * Otherwise, return 0 and leave "out" untouched. + * + * Examples: + * + * [extract branch name, fail if not a branch] + * if (!skip_prefix(ref, "refs/heads/", &branch) + * return -1; + * + * [skip prefix if present, otherwise use whole string] + * skip_prefix(name, "refs/heads/", &name); + */ +static inline int skip_prefix(const char *str, const char *prefix, + const char **out) +{ + do { + if (!*prefix) { + *out = str; + return 1; + } + } while (*str++ == *prefix++); + return 0; +} + +/* + * If buf ends with suffix, return 1 and subtract the length of the suffix + * from *len. Otherwise, return 0 and leave *len untouched. + */ +static inline int strip_suffix_mem(const char *buf, size_t *len, + const char *suffix) +{ + size_t suflen = strlen(suffix); + if (*len < suflen || memcmp(buf + (*len - suflen), suffix, suflen)) + return 0; + *len -= suflen; + return 1; +} + +/* + * If str ends with suffix, return 1 and set *len to the size of the string + * without the suffix. Otherwise, return 0 and set *len to the size of the + * string. + * + * Note that we do _not_ NUL-terminate str to the new length. + */ +static inline int strip_suffix(const char *str, const char *suffix, size_t *len) +{ + *len = strlen(str); + return strip_suffix_mem(str, len, suffix); +} -static inline const char *skip_prefix(const char *str, const char *prefix) +static inline int ends_with(const char *str, const char *suffix) { - size_t len = strlen(prefix); - return strncmp(str, prefix, len) ? NULL : str + len; + size_t len; + return strip_suffix(str, suffix, &len); } #if defined(NO_MMAP) || defined(USE_WIN32_MMAP) @@ -478,9 +528,15 @@ extern FILE *git_fopen(const char*, const char*); #endif #ifdef SNPRINTF_RETURNS_BOGUS +#ifdef snprintf +#undef snprintf +#endif #define snprintf git_snprintf extern int git_snprintf(char *str, size_t maxsize, const char *format, ...); +#ifdef vsnprintf +#undef vsnprintf +#endif #define vsnprintf git_vsnprintf extern int git_vsnprintf(char *str, size_t maxsize, const char *format, va_list ap); @@ -524,6 +580,14 @@ extern void release_pack_memory(size_t); typedef void (*try_to_free_t)(size_t); extern try_to_free_t set_try_to_free_routine(try_to_free_t); +#ifdef HAVE_ALLOCA_H +# include <alloca.h> +# define xalloca(size) (alloca(size)) +# define xalloca_free(p) do {} while (0) +#else +# define xalloca(size) (xmalloc(size)) +# define xalloca_free(p) (free(p)) +#endif extern char *xstrdup(const char *str); extern void *xmalloc(size_t size); extern void *xmallocz(size_t size); @@ -534,12 +598,13 @@ extern void *xcalloc(size_t nmemb, size_t size); extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset); extern ssize_t xread(int fd, void *buf, size_t len); extern ssize_t xwrite(int fd, const void *buf, size_t len); +extern ssize_t xpread(int fd, void *buf, size_t len, off_t offset); extern int xdup(int fd); extern FILE *xfdopen(int fd, const char *mode); extern int xmkstemp(char *template); extern int xmkstemp_mode(char *template, int mode); extern int odb_mkstemp(char *template, size_t limit, const char *pattern); -extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1); +extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1); static inline size_t xsize_t(off_t len) { @@ -548,13 +613,6 @@ static inline size_t xsize_t(off_t len) return (size_t)len; } -static inline int has_extension(const char *filename, const char *ext) -{ - size_t len = strlen(filename); - size_t extlen = strlen(ext); - return len > extlen && !memcmp(filename + len - extlen, ext, extlen); -} - /* in ctype.c, for kwset users */ extern const char tolower_trans_tbl[256]; @@ -671,6 +729,17 @@ void git_qsort(void *base, size_t nmemb, size_t size, #endif #endif +#if defined(__GNUC__) && defined(__x86_64__) +#include <emmintrin.h> +/* + * This is the system memory page size; it's used so that we can read + * outside the bounds of an allocation without segfaulting. + */ +#ifndef PAGE_SIZE +#define PAGE_SIZE 4096 +#endif +#endif + #ifdef UNRELIABLE_FSTAT #define fstat_is_reliable() 0 #else @@ -719,4 +788,11 @@ void warn_on_inaccessible(const char *path); /* Get the passwd entry for the UID of the current process. */ struct passwd *xgetpwuid_self(void); +#ifdef GMTIME_UNRELIABLE_ERRORS +struct tm *git_gmtime(const time_t *); +struct tm *git_gmtime_r(const time_t *, struct tm *); +#define gmtime git_gmtime +#define gmtime_r git_gmtime_r +#endif + #endif |