1 /* $NetBSD: mount_procfs.c,v 1.25 2020/07/26 08:20:23 mlelstv Exp $ */ 2 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 contributed 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 /* 36 * Copyright (c) 1990, 1992, 1993 Jan-Simon Pendry 37 * 38 * This code is derived from software contributed to Berkeley by 39 * Jan-Simon Pendry. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the University of 52 * California, Berkeley and its contributors. 53 * 4. Neither the name of the University nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 */ 69 70 #include <sys/cdefs.h> 71 #ifndef lint 72 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\ 73 The Regents of the University of California. All rights reserved."); 74 #endif /* not lint */ 75 76 #ifndef lint 77 #if 0 78 static char sccsid[] = "@(#)mount_procfs.c 8.4 (Berkeley) 4/26/95"; 79 #else 80 __RCSID("$NetBSD: mount_procfs.c,v 1.25 2020/07/26 08:20:23 mlelstv Exp $"); 81 #endif 82 #endif /* not lint */ 83 84 #include <sys/param.h> 85 #include <sys/mount.h> 86 87 #include <err.h> 88 #include <unistd.h> 89 #include <stdio.h> 90 #include <stdlib.h> 91 #include <string.h> 92 #include <util.h> 93 94 #include <miscfs/procfs/procfs.h> 95 96 #include <mntopts.h> 97 98 #include "mountprog.h" 99 100 static const struct mntopt mopts[] = { 101 MOPT_STDOPTS, 102 MOPT_GETARGS, 103 { "linux", 0, PROCFSMNT_LINUXCOMPAT, 1}, 104 MOPT_NULL, 105 }; 106 107 int mount_procfs(int argc, char **argv); 108 __dead static void usage(void); 109 110 #ifndef MOUNT_NOMAIN 111 int 112 main(int argc, char **argv) 113 { 114 return mount_procfs(argc, argv); 115 } 116 #endif 117 118 int 119 mount_procfs(int argc, char *argv[]) 120 { 121 int ch, mntflags, altflags; 122 struct procfs_args args; 123 char canon_dir[MAXPATHLEN]; 124 mntoptparse_t mp; 125 126 mntflags = 0; 127 altflags = PROCFSMNT_LINUXCOMPAT; 128 while ((ch = getopt(argc, argv, "o:")) != -1) 129 switch (ch) { 130 case 'o': 131 mp = getmntopts(optarg, mopts, &mntflags, &altflags); 132 if (mp == NULL) 133 err(1, "getmntopts"); 134 freemntopts(mp); 135 break; 136 case '?': 137 default: 138 usage(); 139 } 140 argc -= optind; 141 argv += optind; 142 143 if (argc != 2) 144 usage(); 145 146 pathadj(argv[1], canon_dir); 147 148 args.version = PROCFS_ARGSVERSION; 149 args.flags = altflags; 150 151 if (mount(MOUNT_PROCFS, canon_dir, mntflags, &args, sizeof args) == -1) 152 err(1, "procfs on %s", canon_dir); 153 if (mntflags & MNT_GETARGS) { 154 char buf[1024]; 155 (void)snprintb(buf, sizeof(buf), PROCFSMNT_BITS, args.flags); 156 printf("version=%d, flags=%s\n", args.version, buf); 157 } 158 exit(0); 159 } 160 161 static void 162 usage(void) 163 { 164 (void)fprintf(stderr, 165 "usage: mount_procfs [-o options] /proc mount_point\n"); 166 exit(1); 167 } 168
Indexes created Sun Oct 25 00:26:45 UTC 2026