Home | History | Annotate | Line # | Download | only in gpt
unset.c revision 1.14 
      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 1.14 2018/03/19 09:06:20 mlelstv 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 	"-l",
     57 };
     58 
     59 struct gpt_cmd c_unset = {
     60 	"unset",
     61 	cmd_unset,
     62 	unsethelp, __arraycount(unsethelp),
     63 	GPT_OPTDEV,
     64 };
     65 
     66 #define usage() gpt_usage(NULL, &c_unset)
     67 
     68 static int
     69 cmd_unset(gpt_t gpt, int argc, char *argv[])
     70 {
     71 	int ch;
     72 	unsigned int entry = 0;
     73 	uint64_t attributes = 0;
     74 
     75 	while ((ch = getopt(argc, argv, "a:i:l")) != -1) {
     76 		switch(ch) {
     77 		case 'a':
     78 			if (gpt == NULL || gpt_attr_get(gpt, &attributes) == -1)
     79 				return usage();
     80 			break;
     81 		case 'i':
     82 			if (gpt == NULL || gpt_uint_get(gpt, &entry) == -1)
     83 				return usage();
     84 			break;
     85 		case 'l':
     86 			gpt_attr_help("\t");
     87 			return 0;
     88 		default:
     89 			return usage();
     90 		}
     91 	}
     92 
     93 	if (gpt == NULL || argc != optind)
     94 		return usage();
     95 
     96 	return gpt_attr_update(gpt, entry, 0, attributes);
     97 }
     98