1#include <sys/stat.h>
2#include <sys/time.h>
3#include <fcntl.h>
4#include <errno.h>
5#include "syscall.h"
6
7int utimensat(int fd, const char *path, const struct timespec times[2], int flags)
8{
9	int r = __syscall(SYS_utimensat, fd, path, times, flags);
10#ifdef SYS_futimesat
11	if (r != -ENOSYS || flags) return __syscall_ret(r);
12	struct timeval *tv = 0, tmp[2];
13	if (times) {
14		int i;
15		tv = tmp;
16		for (i=0; i<2; i++) {
17			if (times[i].tv_nsec >= 1000000000ULL) {
18				if (times[i].tv_nsec == UTIME_NOW &&
19				    times[1-i].tv_nsec == UTIME_NOW) {
20					tv = 0;
21					break;
22				}
23				if (times[i].tv_nsec == UTIME_OMIT)
24					return __syscall_ret(-ENOSYS);
25				return __syscall_ret(-EINVAL);
26			}
27			tmp[i].tv_sec = times[i].tv_sec;
28			tmp[i].tv_usec = times[i].tv_nsec / 1000;
29		}
30	}
31
32	r = __syscall(SYS_futimesat, fd, path, tv);
33	if (r != -ENOSYS || fd != AT_FDCWD) return __syscall_ret(r);
34	r = __syscall(SYS_utimes, path, tv);
35#endif
36	return __syscall_ret(r);
37}
38