libc-top-half/musl/src/stat/futimesat.c

   1 #define _GNU_SOURCE
   2 #include <sys/time.h>
   3 #include <sys/stat.h>
   4 #include <errno.h>
   5 #ifdef __wasilibc_unmodified_upstream // WASI has no syscall
   6 #include "syscall.h"
   7 #endif
   8
   9 int __futimesat(int dirfd, const char *pathname, const struct timeval times[2])
  10 {
  11         struct timespec ts[2];
  12         if (times) {
  13                 int i;
  14                 for (i=0; i<2; i++) {
  15                         if (times[i].tv_usec >= 1000000ULL)
  16 #ifdef __wasilibc_unmodified_upstream // WASI has no syscall
  17                                 return __syscall_ret(-EINVAL);
  18 #else
  19                                 errno = EINVAL;
  20                                 return -1;
  21 #endif
  22                         ts[i].tv_sec = times[i].tv_sec;
  23                         ts[i].tv_nsec = times[i].tv_usec * 1000;
  24                 }
  25         }
  26         return utimensat(dirfd, pathname, times ? ts : 0, 0);
  27 }
  28
  29 weak_alias(__futimesat, futimesat);