1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software donated to Berkeley by 8 * Jan-Simon Pendry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/param.h> 36 #include <sys/mount.h> 37 38 #include <err.h> 39 #include <getopt.h> 40 #include <libgen.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <unistd.h> 45 46 #include "extern.h" 47 #include "mntopts.h" 48 49 static struct mntopt mopts[] = { 50 MOPT_STDOPTS, 51 MOPT_END 52 }; 53 54 static void 55 usage(void) 56 { 57 (void)fprintf(stderr, 58 "usage: mount [-t fstype] [-o options] target_fs mount_point\n"); 59 exit(1); 60 } 61 62 int 63 mount_fs(const char *vfstype, int argc, char *argv[]) 64 { 65 struct iovec *iov; 66 int iovlen; 67 int mntflags = 0; 68 int ch; 69 char *dev, *dir, mntpath[MAXPATHLEN]; 70 char fstype[32]; 71 char errmsg[255]; 72 char *p, *val; 73 74 strlcpy(fstype, vfstype, sizeof(fstype)); 75 memset(errmsg, 0, sizeof(errmsg)); 76 77 getmnt_silent = 1; 78 iov = NULL; 79 iovlen = 0; 80 81 optind = optreset = 1; /* Reset for parse of new argv. */ 82 while ((ch = getopt(argc, argv, "o:")) != -1) { 83 switch(ch) { 84 case 'o': 85 getmntopts(optarg, mopts, &mntflags, 0); 86 p = strchr(optarg, '='); 87 val = NULL; 88 if (p != NULL) { 89 *p = '\0'; 90 val = p + 1; 91 } 92 build_iovec(&iov, &iovlen, optarg, val, (size_t)-1); 93 break; 94 case '?': 95 default: 96 usage(); 97 } 98 } 99 100 argc -= optind; 101 argv += optind; 102 if (argc != 2) 103 usage(); 104 105 dev = argv[0]; 106 dir = argv[1]; 107 108 if (checkpath(dir, mntpath) != 0) { 109 warn("%s", mntpath); 110 return (1); 111 } 112 (void)rmslashes(dev, dev); 113 114 build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1); 115 build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1); 116 build_iovec(&iov, &iovlen, "from", dev, (size_t)-1); 117 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); 118 119 if (nmount(iov, iovlen, mntflags) == -1) { 120 if (*errmsg != '\0') 121 warn("%s: %s", dev, errmsg); 122 else 123 warn("%s", dev); 124 return (1); 125 } 126 return (0); 127 } 128