minix/lib/libc/sys/utimes.c

   1 #include <sys/cdefs.h>
   2 #include "namespace.h"
   3 #include <lib.h>
   4
   5 #include <sys/stat.h>
   6 #include <sys/time.h>
   7 #include <string.h>
   8 #include <errno.h>
   9
  10 #ifdef __weak_alias
  11 __weak_alias(utimes, __utimes50)
  12 #endif
  13
  14 int utimes(const char *name, const struct timeval tv[2])
  15 {
  16   message m;
  17
  18   if (name == NULL) {
  19         errno = EINVAL;
  20         return -1;
  21   }
  22   if (name[0] == '\0') { /* X/Open requirement */
  23         errno = ENOENT;
  24         return -1;
  25   }
  26   memset(&m, 0, sizeof(m));
  27   m.m_vfs_utimens.len = strlen(name) + 1;
  28   m.m_vfs_utimens.name = __UNCONST(name);
  29   if (tv == NULL) {
  30         m.m_vfs_utimens.atime = m.m_vfs_utimens.mtime = 0;
  31         m.m_vfs_utimens.ansec = m.m_vfs_utimens.mnsec = UTIME_NOW;
  32   }
  33   else {
  34         m.m_vfs_utimens.atime = tv[0].tv_sec;
  35         m.m_vfs_utimens.mtime = tv[1].tv_sec;
  36         m.m_vfs_utimens.ansec = tv[0].tv_usec * 1000;
  37         m.m_vfs_utimens.mnsec = tv[1].tv_usec * 1000;
  38   }
  39   m.m_vfs_utimens.flags = 0;
  40
  41   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
  42 }