1/* $NetBSD$ */ 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 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 78static char sccsid[] = "@(#)mount_ptyfs.c 8.3 (Berkeley) 5/4/95"; 79#else 80__RCSID("$NetBSD$"); 81#endif 82#endif /* not lint */ 83 84#include <sys/param.h> 85#include <sys/types.h> 86#include <sys/mount.h> 87#include <sys/stat.h> 88 89#include <fs/ptyfs/ptyfs.h> 90 91#include <err.h> 92#include <unistd.h> 93#include <stdio.h> 94#include <stdlib.h> 95#include <string.h> 96#include <grp.h> 97#include <util.h> 98 99#include <mntopts.h> 100 101#define ALTF_GROUP 0x1 102#define ALTF_MODE 0x2 103 104static const struct mntopt mopts[] = { 105 MOPT_STDOPTS, 106 MOPT_GETARGS, 107 { "group", 0, ALTF_GROUP, 1 }, 108 { "mode", 0, ALTF_MODE, 1 }, 109 MOPT_NULL, 110}; 111 112int main(int, char *[]); 113int mount_ptyfs(int argc, char **argv); 114 115static gid_t getgrp(const char *name); 116__dead static void usage(void); 117 118#ifndef MOUNT_NOMAIN 119int 120main(int argc, char *argv[]) 121{ 122 return mount_ptyfs(argc, argv); 123} 124#endif 125 126static gid_t 127getgrp(const char *name) 128{ 129 char *ep; 130 struct group *grp; 131 long l; 132 133 if (name == NULL) 134 errx(1, "Missing group name"); 135 136 l = strtol(name, &ep, 0); 137 138 if (name == ep || *ep) 139 grp = getgrnam(name); 140 else 141 grp = getgrgid((gid_t)l); 142 143 if (grp == NULL) 144 errx(1, "Cannot find group `%s'", name); 145 146 return grp->gr_gid; 147} 148 149 150int 151mount_ptyfs(int argc, char *argv[]) 152{ 153 int ch, mntflags = 0, altflags = 0; 154 struct ptyfs_args args; 155 mntoptparse_t mp; 156 char canon_dir[MAXPATHLEN]; 157 158 159 setprogname(argv[0]); 160 161 args.version = PTYFS_ARGSVERSION; 162 args.gid = getgrp("tty"); 163 args.mode = S_IRUSR|S_IWUSR|S_IWGRP; 164 args.flags = 0; 165 166 while ((ch = getopt(argc, argv, "g:m:o:")) != -1) 167 switch (ch) { 168 case 'o': 169 altflags = 0; 170 mp = getmntopts(optarg, mopts, &mntflags, &altflags); 171 if (mp == NULL) 172 err(1, "getmntopts"); 173 if (altflags & ALTF_GROUP) 174 args.gid = getgrp(getmntoptstr(mp, "group")); 175 if (altflags & ALTF_MODE) 176 args.mode = (mode_t)getmntoptnum(mp, "mode"); 177 freemntopts(mp); 178 break; 179 case 'g': 180 args.gid = getgrp(optarg); 181 break; 182 case 'm': 183 args.mode = (mode_t)strtol(optarg, NULL, 0); 184 break; 185 case '?': 186 default: 187 usage(); 188 } 189 190 argc -= optind; 191 argv += optind; 192 193 if (argc != 2) 194 usage(); 195 196 if (realpath(argv[1], canon_dir) == NULL) /* Check mounton path */ 197 err(1, "realpath %s", argv[1]); 198 if (strncmp(argv[1], canon_dir, MAXPATHLEN)) { 199 warnx("\"%s\" is a relative path.", argv[1]); 200 warnx("using \"%s\" instead.", canon_dir); 201 } 202 203 if (mount(MOUNT_PTYFS, canon_dir, mntflags, &args, sizeof args) == -1) 204 err(1, "ptyfs on %s", canon_dir); 205 if (mntflags & MNT_GETARGS) { 206 printf("version=%d, gid=%lu, mode=0%o\n", args.version, 207 (unsigned long)args.gid, args.mode); 208 } 209 return 0; 210} 211 212static void 213usage(void) 214{ 215 (void)fprintf(stderr, 216 "Usage: %s [-g <group|gid>] [-m <mode>] [-o options] " 217 "ptyfs mountpoint\n", getprogname()); 218 exit(1); 219} 220