xref: /dragonfly/sbin/hammer2/cmd_growfs.c (revision 17183580)
1 /*
2  * Copyright (c) 2020 The DragonFly Project.  All rights reserved.
3  *
4  * This code is derived from software contributed to The DragonFly Project
5  * by Matthew Dillon <dillon@dragonflybsd.org>
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  *
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in
15  *    the documentation and/or other materials provided with the
16  *    distribution.
17  * 3. Neither the name of The DragonFly Project nor the names of its
18  *    contributors may be used to endorse or promote products derived
19  *    from this software without specific, prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #include "hammer2.h"
36 
37 int
38 cmd_growfs(const char *sel_path, int ac, const char **av)
39 {
40 	int fd;
41 	int i;
42 	int ecode = 0;
43 
44 	/*
45 	 * Use sel_path if no arguments, else used passed arguments
46 	 */
47 	for (i = 0; i <= ac; ++i) {
48 		struct hammer2_ioc_growfs growfs;
49 
50 		if (i < ac)
51 			sel_path = av[i];
52 		else if (i == ac && ac != 0)
53 			continue;
54 
55 		fd = hammer2_ioctl_handle(sel_path);
56 		if (fd < 0) {
57 			ecode = 1;
58 			continue;
59 		}
60 		bzero(&growfs, sizeof(growfs));
61 		if (ioctl(fd, HAMMER2IOC_GROWFS, &growfs) < 0) {
62 			fprintf(stderr, "grow %s failed: %s\n",
63 			       sel_path, strerror(errno));
64 			ecode = 1;
65 		} else if (growfs.modified) {
66 			printf("%s grown to %016jx\n",
67 			       sel_path, (intmax_t)growfs.size);
68 		} else {
69 			printf("%s no size change - %016jx\n",
70 			       sel_path, (intmax_t)growfs.size);
71 		}
72 		close(fd);
73 	}
74 	return ecode;
75 }
76