diff options
| author | Elliot Thomas <elliot@midnightspark.net> | 2023-03-06 01:21:05 +0000 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2023-03-13 07:53:24 +0100 |
| commit | 4d69fcb9850b191db87d8dc8729a19c0273b95fb (patch) | |
| tree | f0f08cecc460d5f8d43b2a58f9dccccc23483e2d | |
| parent | 9d549d7bc6a1b78498ee8d1f39f6a324fdfc9e5d (diff) | |
Emulate 'futimesat' when __NR_futimesat is not available.
| -rw-r--r-- | libc/sysdeps/linux/common/futimesat.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/futimesat.c b/libc/sysdeps/linux/common/futimesat.c index bd73eae7e..fd19fea7c 100644 --- a/libc/sysdeps/linux/common/futimesat.c +++ b/libc/sysdeps/linux/common/futimesat.c @@ -11,6 +11,28 @@ #ifdef __NR_futimesat _syscall3(int, futimesat, int, fd, const char *, file, const struct timeval *, tvp) -#else -/* should add emulation with futimes() and /proc/self/fd/ ... */ +#elif defined __NR_utimensat +#include <errno.h> +#define __need_NULL +#include <stddef.h> + +int futimesat(int dirfd, const char *file, const struct timeval tvp[2]) +{ + struct timespec ts[2]; + + if (tvp != NULL) + { + if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000 + || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000) + { + __set_errno(EINVAL); + return -1; + } + + TIMEVAL_TO_TIMESPEC(&tvp[0], &ts[0]); + TIMEVAL_TO_TIMESPEC(&tvp[1], &ts[1]); + } + + return utimensat(dirfd, file, tvp ? ts : NULL, 0); +} #endif |