mount_fs.c revision 164977
1/* 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software donated to Berkeley by 6 * Jan-Simon Pendry. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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 the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38static const char copyright[] = 39"@(#) Copyright (c) 1992, 1993, 1994\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41#endif /* not lint */ 42 43#ifndef lint 44#if 0 45static char sccsid[] = "@(#)mount_fs.c 8.6 (Berkeley) 4/26/95"; 46#endif 47static const char rcsid[] = 48 "$FreeBSD: head/sbin/mount/mount_fs.c 164977 2006-12-07 03:24:43Z rodrigc $"; 49#endif /* not lint */ 50 51#include <sys/param.h> 52#include <sys/mount.h> 53 54#include <err.h> 55#include <getopt.h> 56#include <libgen.h> 57#include <stdio.h> 58#include <stdlib.h> 59#include <string.h> 60#include <unistd.h> 61 62#include "extern.h" 63#include "mntopts.h" 64 65struct mntopt mopts[] = { 66 MOPT_STDOPTS, 67 MOPT_END 68}; 69 70static void 71usage(void) 72{ 73 (void)fprintf(stderr, 74 "usage: mount [-t fstype] [-o options] target_fs mount_point\n"); 75 exit(1); 76} 77 78int 79mount_fs(const char *vfstype, int argc, char *argv[]) 80{ 81 struct iovec *iov; 82 int iovlen; 83 int mntflags = 0; 84 int ch; 85 char *dev, *dir, mntpath[MAXPATHLEN]; 86 char fstype[32]; 87 char errmsg[255]; 88 char *p, *val; 89 int ret; 90 91 strncpy(fstype, vfstype, sizeof(fstype)); 92 memset(errmsg, 0, sizeof(errmsg)); 93 94 getmnt_silent = 1; 95 iov = NULL; 96 iovlen = 0; 97 98 optind = optreset = 1; /* Reset for parse of new argv. */ 99 while ((ch = getopt(argc, argv, "o:")) != -1) { 100 switch(ch) { 101 case 'o': 102 getmntopts(optarg, mopts, &mntflags, 0); 103 p = strchr(optarg, '='); 104 val = NULL; 105 if (p != NULL) { 106 *p = '\0'; 107 val = p + 1; 108 } 109 build_iovec(&iov, &iovlen, optarg, val, (size_t)-1); 110 break; 111 case '?': 112 default: 113 usage(); 114 } 115 } 116 117 argc -= optind; 118 argv += optind; 119 if (argc != 2) 120 usage(); 121 122 dev = argv[0]; 123 dir = argv[1]; 124 125 (void)checkpath(dir, mntpath); 126 (void)rmslashes(dev, dev); 127 128 build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1); 129 build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1); 130 build_iovec(&iov, &iovlen, "from", dev, (size_t)-1); 131 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); 132 133 ret = nmount(iov, iovlen, mntflags); 134 if (ret < 0) 135 err(1, "%s %s", dev, errmsg); 136 137 return (ret); 138} 139