1 /* $NetBSD: mount_chfs.c,v 1.5 2021/07/16 12:09:36 andvar Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Department of Software Engineering, 5 * University of Szeged, Hungary 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by the Department of Software Engineering, University of Szeged, Hungary 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 #ifndef lint 35 #endif /* not lint */ 36 37 #include <sys/param.h> 38 #include <sys/mount.h> 39 #include <sys/stat.h> 40 #include <ufs/ufs/ufsmount.h> 41 42 #include <ctype.h> 43 #include <err.h> 44 #include <errno.h> 45 #include <grp.h> 46 #include <mntopts.h> 47 #include <pwd.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <unistd.h> 52 53 #include "mountprog.h" 54 #include "mount_chfs.h" 55 56 static const struct mntopt mopts[] = { 57 MOPT_STDOPTS, 58 MOPT_GETARGS, 59 MOPT_NULL, 60 }; 61 62 /* --------------------------------------------------------------------- */ 63 64 static void usage(void) __dead; 65 66 /* --------------------------------------------------------------------- */ 67 68 void 69 mount_chfs_parseargs(int argc, char *argv[], struct ufs_args *args, 70 int *mntflags, char *canon_dev, char *canon_dir) 71 { 72 int ch; 73 mntoptparse_t mp; 74 struct stat sb; 75 76 /* Set default values for mount point arguments. */ 77 memset(args, 0, sizeof(*args)); 78 *mntflags = 0; 79 80 optind = optreset = 1; 81 82 while ((ch = getopt(argc, argv, "o:")) != -1) { 83 switch (ch) { 84 case 'o': 85 mp = getmntopts(optarg, mopts, mntflags, 0); 86 if (mp == NULL) 87 err(1, "getmntopts"); 88 freemntopts(mp); 89 break; 90 case '?': 91 default: 92 usage(); 93 } 94 } 95 argc -= optind; 96 argv += optind; 97 98 if (argc != 2) 99 usage(); 100 101 pathadj(argv[0], canon_dev); 102 pathadj(argv[1], canon_dir); 103 104 args->fspec = canon_dev; 105 106 if (stat(canon_dir, &sb) == -1) { 107 err(EXIT_FAILURE, "cannot stat `%s'", canon_dir); 108 } 109 110 } 111 112 /* --------------------------------------------------------------------- */ 113 114 static void 115 usage(void) 116 { 117 (void)fprintf(stderr, 118 "usage: %s special mountpath\n", 119 getprogname()); 120 exit(1); 121 } 122 123 /* --------------------------------------------------------------------- */ 124 125 int 126 mount_chfs(int argc, char *argv[]) 127 { 128 struct ufs_args args; 129 char canon_dev[MAXPATHLEN], fs_name[MAXPATHLEN]; 130 int mntflags; 131 132 mount_chfs_parseargs(argc, argv, &args, &mntflags, 133 canon_dev, fs_name); 134 135 if (mount(MOUNT_CHFS, fs_name, mntflags, &args, sizeof args) == -1) { 136 err(EXIT_FAILURE, "chfs on %s", fs_name); 137 } 138 139 return EXIT_SUCCESS; 140 } 141 142 #ifndef MOUNT_NOMAIN 143 int 144 main(int argc, char *argv[]) 145 { 146 setprogname(argv[0]); 147 return mount_chfs(argc, argv); 148 } 149 #endif 150