#include <sys/types.h>
#include <sys/stat.h>
#include <sys/attr.h>
#include <sys/time.h>
#include <sys/fcntl.h>
#include <unistd.h>
#include <strings.h>
extern int __gettimeofday(struct timeval *, struct timezone *);
extern int __commpage_gettimeofday(struct timeval *);
static struct timespec times_now[2] = {
{ .tv_nsec = UTIME_NOW },
{ .tv_nsec = UTIME_NOW }
};
static int
prepare_times_array_and_attrs(struct timespec times_in[2],
struct timespec times_out[2], size_t *times_out_size)
{
if (times_in[0].tv_nsec == UTIME_OMIT &&
times_in[1].tv_nsec == UTIME_OMIT) {
return 0;
}
if (times_in[0].tv_nsec == UTIME_NOW ||
times_in[1].tv_nsec == UTIME_NOW) {
struct timespec now = {};
{
struct timeval tv;
if (__commpage_gettimeofday(&tv) != 0) {
__gettimeofday(&tv, NULL);
}
TIMEVAL_TO_TIMESPEC(&tv, &now);
}
if (times_in[0].tv_nsec == UTIME_NOW) {
times_in[0] = now;
}
if (times_in[1].tv_nsec == UTIME_NOW) {
times_in[1] = now;
}
}
int attrs = 0;
*times_out_size = 0;
struct timespec *times_cursor = times_out;
if (times_in[1].tv_nsec != UTIME_OMIT) {
attrs |= ATTR_CMN_MODTIME;
*times_cursor++ = times_in[1];
*times_out_size += sizeof(struct timespec);
}
if (times_in[0].tv_nsec != UTIME_OMIT) {
attrs |= ATTR_CMN_ACCTIME;
*times_cursor = times_in[0];
*times_out_size += sizeof(struct timespec);
}
return attrs;
}
int
futimens(int fd, const struct timespec _times_in[2])
{
struct timespec times_in[2];
if (_times_in != NULL) {
memcpy(×_in, _times_in, sizeof(times_in));
} else {
memcpy(×_in, times_now, sizeof(times_in));
}
size_t attrbuf_size = 0;
struct timespec times_out[2] = {};
struct attrlist a = {
.bitmapcount = ATTR_BIT_MAP_COUNT
};
a.commonattr = prepare_times_array_and_attrs(times_in, times_out, &attrbuf_size);
return fsetattrlist(fd, &a, ×_out, attrbuf_size, 0);
}
int
utimensat(int fd, const char *path, const struct timespec _times_in[2], int flags)
{
struct timespec times_in[2];
if (_times_in != NULL) {
memcpy(×_in, _times_in, sizeof(times_in));
} else {
memcpy(×_in, times_now, sizeof(times_in));
}
size_t attrbuf_size = 0;
struct timespec times_out[2] = {};
struct attrlist a = {
.bitmapcount = ATTR_BIT_MAP_COUNT
};
a.commonattr = prepare_times_array_and_attrs(times_in, times_out, &attrbuf_size);
int flags_out = 0;
if (flags & AT_SYMLINK_NOFOLLOW) {
flags_out |= FSOPT_NOFOLLOW;
}
return setattrlistat(fd, path, &a, ×_out, attrbuf_size, flags_out);
}