diff options
Diffstat (limited to 'libuuid/src/uuid_time.c')
| -rw-r--r-- | libuuid/src/uuid_time.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/libuuid/src/uuid_time.c b/libuuid/src/uuid_time.c index 6f07d51..9b415b3 100644 --- a/libuuid/src/uuid_time.c +++ b/libuuid/src/uuid_time.c @@ -40,6 +40,7 @@ #define UUID MYUUID #endif +#include <errno.h> #include <stdio.h> #ifdef HAVE_UNISTD_H #include <unistd.h> @@ -53,7 +54,15 @@ #include "uuidP.h" -time_t uuid_time(const uuid_t uu, struct timeval *ret_tv) +#undef uuid_time + +/* prototype to make compiler happy */ +time_t __uuid_time(const uuid_t uu, struct timeval *ret_tv); + + +/* this function could be 32bit time_t and 32bit timeval or 64bit, + depending on compiler flags and architecture. */ +time_t __uuid_time(const uuid_t uu, struct timeval *ret_tv) { struct timeval tv; struct uuid uuid; @@ -74,6 +83,54 @@ time_t uuid_time(const uuid_t uu, struct timeval *ret_tv) return tv.tv_sec; } +#if defined(__USE_TIME_BITS64) && defined(__GLIBC__) +extern time_t uuid_time64(const uuid_t uu, struct timeval *ret_tv) __attribute__((weak, alias("__uuid_time"))); +#else +extern time_t uuid_time(const uuid_t uu, struct timeval *ret_tv) __attribute__((weak, alias("__uuid_time"))); +#endif + +#if defined(__USE_TIME_BITS64) && defined(__GLIBC__) +struct timeval32 +{ + int32_t tv_sec; + int32_t tv_usec; +}; + +/* prototype to make compiler happy */ +int32_t __uuid_time32(const uuid_t uu, struct timeval32 *ret_tv); + +/* Check whether time fits in 32bit time_t. */ +static inline int +in_time32_t_range(time_t t) +{ + int32_t s; + + s = t; + + return s == t; +} + +int32_t __uuid_time32(const uuid_t uu, struct timeval32 *ret_tv) +{ + struct timeval tv; + time_t ret_time = __uuid_time(uu, &tv); + + if (! in_time32_t_range(ret_time)) { + ret_tv->tv_sec = -1; + ret_tv->tv_usec = -1; + errno = EOVERFLOW; + return -1; + } + + if (ret_tv) { + ret_tv->tv_sec = tv.tv_sec; + ret_tv->tv_usec = tv.tv_usec; + } + + return tv.tv_sec; +} +extern int32_t uuid_time(const uuid_t uu, struct timeval32 *ret_tv) __attribute__((weak, alias("__uuid_time32"))); +#endif int uuid_type(const uuid_t uu) { |