minix/lib/libc/sys/lutimes.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 <fcntl.h>
   8 #include <string.h>
   9 #include <errno.h>
  10
  11 #ifdef __weak_alias
  12 __weak_alias(lutimes, __lutimes50)
  13 #endif
  14
  15 int lutimes(const char *name, const struct timeval tv[2])
  16 {
  17   message m;
  18
  19   if (name == NULL) {
  20         errno = EINVAL;
  21         return -1;
  22   }
  23   if (name[0] == '\0') { /* X/Open requirement */
  24         errno = ENOENT;
  25         return -1;
  26   }
  27   memset(&m, 0, sizeof(m));
  28   m.m_vfs_utimens.len = strlen(name) + 1;
  29   m.m_vfs_utimens.name = (char *) __UNCONST(name);
  30   if (tv == NULL) {
  31         m.m_vfs_utimens.atime = m.m_vfs_utimens.mtime = 0;
  32         m.m_vfs_utimens.ansec = m.m_vfs_utimens.mnsec = UTIME_NOW;
  33   }
  34   else {
  35         m.m_vfs_utimens.atime = tv[0].tv_sec;
  36         m.m_vfs_utimens.mtime = tv[1].tv_sec;
  37         m.m_vfs_utimens.ansec = tv[0].tv_usec * 1000;
  38         m.m_vfs_utimens.mnsec = tv[1].tv_usec * 1000;
  39   }
  40   m.m_vfs_utimens.flags = AT_SYMLINK_NOFOLLOW;
  41
  42   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
  43 }