otherwise return 0. */
static int
isnumber (const char *str)
cpio_isnumber (const char *str)
{
for (; *str; str++)
if (!isdigit (*str))
if (pwd == NULL)
if (!isnumber (u))
if (!cpio_isnumber (u))
error_msg = _("invalid user");
else
grp = getgrnam (g);
if (grp == NULL)
if (!isnumber (g))
if (!cpio_isnumber (g))
error_msg = _("invalid group");
*gid = atoi (g);