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unset.c revision 1.10 
      1 /*-
      2  * Copyright (c) 2002 Marcel Moolenaar
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #if HAVE_NBTOOL_CONFIG_H
     28 #include "nbtool_config.h"
     29 #endif
     30 
     31 #include <sys/cdefs.h>
     32 #ifdef __FBSDID
     33 __FBSDID("$FreeBSD: src/sbin/gpt/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $");
     34 #endif
     35 #ifdef __RCSID
     36 __RCSID("$NetBSD: unset.c,v 1.10 2015/12/03 01:07:28 christos Exp $");
     37 #endif
     38 
     39 #include <sys/types.h>
     40 
     41 #include <err.h>
     42 #include <stddef.h>
     43 #include <stdio.h>
     44 #include <stdlib.h>
     45 #include <string.h>
     46 #include <unistd.h>
     47 
     48 #include "map.h"
     49 #include "gpt.h"
     50 #include "gpt_private.h"
     51 
     52 static int cmd_unset(gpt_t, int, char *[]);
     53 
     54 static const char *unsethelp[] = {
     55 	"-a attribute -i index",
     56 };
     57 
     58 struct gpt_cmd c_unset = {
     59 	"unset",
     60 	cmd_unset,
     61 	unsethelp, __arraycount(unsethelp),
     62 	0,
     63 };
     64 
     65 #define usage() gpt_usage(NULL, &c_unset)
     66 
     67 static int
     68 cmd_unset(gpt_t gpt, int argc, char *argv[])
     69 {
     70 	int ch;
     71 	unsigned int entry = 0;
     72 	uint64_t attributes = 0;
     73 
     74 	while ((ch = getopt(argc, argv, "a:i:")) != -1) {
     75 		switch(ch) {
     76 		case 'a':
     77 			if (gpt_attr_get(&attributes) == -1)
     78 				return usage();
     79 			break;
     80 		case 'i':
     81 			if (gpt_entry_get(&entry) == -1)
     82 				return usage();
     83 			break;
     84 		default:
     85 			return usage();
     86 		}
     87 	}
     88 
     89 	if (argc != optind)
     90 		return usage();
     91 
     92 	return gpt_attr_update(gpt, entry, 0, attributes);
     93 }
     94