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      1 /*-
      2  * Copyright (c) 2004 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/remove.c,v 1.10 2006/10/04 18:20:25 marcel Exp $");
     34 #endif
     35 #ifdef __RCSID
     36 __RCSID("$NetBSD: remove.c,v 1.24 2025/02/23 20:47:19 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_remove(gpt_t, int, char *[]);
     53 
     54 static const char *removehelp[] = {
     55 	"-a",
     56 	"[-b blocknr] [-i index] [-L label] [-s sectors] [-t type]",
     57 };
     58 
     59 const struct gpt_cmd c_remove = {
     60 	"remove",
     61 	cmd_remove,
     62 	removehelp, __arraycount(removehelp),
     63 	GPT_SYNC,
     64 };
     65 
     66 #define usage() gpt_usage(NULL, &c_remove)
     67 
     68 static void
     69 change(struct gpt_ent *ent, void *v __unused, int backup __unused)
     70 {
     71 	/* Remove the primary entry by clearing the partition type. */
     72 	gpt_uuid_copy(ent->ent_type, gpt_uuid_nil);
     73 }
     74 
     75 static int
     76 cmd_remove(gpt_t gpt, int argc, char *argv[])
     77 {
     78 	int ch;
     79 	struct gpt_find find;
     80 
     81 	memset(&find, 0, sizeof(find));
     82 	find.msg = "removed";
     83 
     84 	/* Get the remove options */
     85 	while ((ch = getopt(argc, argv, GPT_FIND)) != -1)
     86 		if (gpt_add_find(gpt, &find, ch) == -1)
     87 			return usage();
     88 
     89 	if (argc != optind)
     90 		return usage();
     91 
     92 	return gpt_change_ent(gpt, &find, change, NULL);
     93 }
     94