diff options
Diffstat (limited to 'git-compat-util.h')
| -rw-r--r-- | git-compat-util.h | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/git-compat-util.h b/git-compat-util.h index 81883e7270..79b5122b4f 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -28,6 +28,24 @@ #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) #define bitsizeof(x) (CHAR_BIT * sizeof(x)) +#define maximum_signed_value_of_type(a) \ + (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a))) + +#define maximum_unsigned_value_of_type(a) \ + (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a))) + +/* + * Signed integer overflow is undefined in C, so here's a helper macro + * to detect if the sum of two integers will overflow. + * + * Requires: a >= 0, typeof(a) equals typeof(b) + */ +#define signed_add_overflows(a, b) \ + ((b) > maximum_signed_value_of_type(a) - (a)) + +#define unsigned_add_overflows(a, b) \ + ((b) > maximum_unsigned_value_of_type(a) - (a)) + #ifdef __GNUC__ #define TYPEOF(x) (__typeof__(x)) #else @@ -92,9 +110,15 @@ #include <assert.h> #include <regex.h> #include <utime.h> +#include <syslog.h> +#ifndef NO_SYS_POLL_H +#include <sys/poll.h> +#else +#include <poll.h> +#endif #ifndef __MINGW32__ #include <sys/wait.h> -#include <sys/poll.h> +#include <sys/resource.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <termios.h> @@ -106,7 +130,11 @@ #include <arpa/inet.h> #include <netdb.h> #include <pwd.h> +#ifndef NO_INTTYPES_H #include <inttypes.h> +#else +#include <stdint.h> +#endif #if defined(__CYGWIN__) #undef _XOPEN_SOURCE #include <grp.h> @@ -187,7 +215,10 @@ extern char *gitbasename(char *); #define is_dir_sep(c) ((c) == '/') #endif -#ifdef __GNUC__ +#if __HP_cc >= 61000 +#define NORETURN __attribute__((noreturn)) +#define NORETURN_PTR +#elif defined(__GNUC__) #define NORETURN __attribute__((__noreturn__)) #define NORETURN_PTR __attribute__((__noreturn__)) #elif defined(_MSC_VER) @@ -374,6 +405,14 @@ static inline void *gitmempcpy(void *dest, const void *src, size_t n) } #endif +#ifdef NO_INET_PTON +int inet_pton(int af, const char *src, void *dst); +#endif + +#ifdef NO_INET_NTOP +const char *inet_ntop(int af, const void *src, char *dst, size_t size); +#endif + extern void release_pack_memory(size_t, int); typedef void (*try_to_free_t)(size_t); @@ -392,6 +431,7 @@ extern ssize_t xwrite(int fd, const void *buf, size_t len); 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); |