NetBSD/bin/pax/getoldopt.c
2003-06-23 13:15:15 +00:00

48 lines
1.2 KiB
C

/* $NetBSD: getoldopt.c,v 1.17 2003/06/23 13:15:15 christos Exp $ */
/*
* Plug-compatible replacement for getopt() for parsing tar-like
* arguments. If the first argument begins with "-", it uses getopt;
* otherwise, it uses the old rules used by tar, dump, and ps.
*
* Written 25 August 1985 by John Gilmore (ihnp4!hoptoad!gnu) and placed
* in the Public Domain for your edification and enjoyment.
*/
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: getoldopt.c,v 1.17 2003/06/23 13:15:15 christos Exp $");
#endif /* not lint */
#include <getopt.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include "pax.h"
#include "extern.h"
int
getoldopt(int argc, char **argv, const char *optstring,
struct option *longopts, int *idx)
{
static char *key; /* Points to next keyletter */
static char argv1[64];
if (key == NULL) { /* First time */
if (argc < 2) return -1;
key = argv[1];
if (*key != '-')
(void)snprintf(argv[1] = argv1, sizeof(argv1), "-%s",
key);
}
if (longopts != NULL) {
return getopt_long(argc, argv, optstring,
longopts, idx);
} else {
return getopt(argc, argv, optstring);
}
}