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Diffstat (limited to '')
-rw-r--r-- | libc-top-half/musl/src/time/localtime_r.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/time/localtime_r.c b/libc-top-half/musl/src/time/localtime_r.c new file mode 100644 index 0000000..1a15b31 --- /dev/null +++ b/libc-top-half/musl/src/time/localtime_r.c @@ -0,0 +1,21 @@ +#include "time_impl.h" +#include <errno.h> +#include <limits.h> + +struct tm *__localtime_r(const time_t *restrict t, struct tm *restrict tm) +{ + /* Reject time_t values whose year would overflow int because + * __secs_to_zone cannot safely handle them. */ + if (*t < INT_MIN * 31622400LL || *t > INT_MAX * 31622400LL) { + errno = EOVERFLOW; + return 0; + } + __secs_to_zone(*t, 0, &tm->tm_isdst, &tm->__tm_gmtoff, 0, &tm->__tm_zone); + if (__secs_to_tm((long long)*t + tm->__tm_gmtoff, tm) < 0) { + errno = EOVERFLOW; + return 0; + } + return tm; +} + +weak_alias(__localtime_r, localtime_r); |