/* $NetBSD: mount_ptyfs.c,v 1.5 2006/03/21 21:11:42 christos Exp $ */ /* * Copyright (c) 1992, 1993, 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Copyright (c) 1990, 1992 Jan-Simon Pendry * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"); #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)mount_ptyfs.c 8.3 (Berkeley) 5/4/95"; #else __RCSID("$NetBSD: mount_ptyfs.c,v 1.5 2006/03/21 21:11:42 christos Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #define ALTF_GROUP 1 #define ALTF_MODE 2 static const struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_GETARGS, { "group", 0, ALTF_GROUP, 1 }, { "mode", 0, ALTF_MODE, 1 }, { NULL } }; int main(int, char *[]); int mount_ptyfs(int argc, char **argv); static gid_t getgrp(const char *name); static void usage(void); #ifndef MOUNT_NOMAIN int main(int argc, char *argv[]) { return mount_ptyfs(argc, argv); } #endif static gid_t getgrp(const char *name) { char *ep; struct group *grp; long l; if (name == NULL) errx(1, "Missing group name"); l = strtol(name, &ep, 0); if (name == ep || *ep) grp = getgrnam(name); else grp = getgrgid((gid_t)l); if (grp == NULL) errx(1, "Cannot find group `%s'", name); return grp->gr_gid; } int mount_ptyfs(int argc, char *argv[]) { int ch, mntflags = 0, altflags = 0; struct ptyfs_args args; mntoptparse_t mp; char canon_dir[MAXPATHLEN]; setprogname(argv[0]); args.version = PTYFS_ARGSVERSION; args.gid = getgrp("tty"); args.mode = S_IRUSR|S_IWUSR|S_IWGRP; while ((ch = getopt(argc, argv, "g:m:o:")) != -1) switch (ch) { case 'o': altflags = 0; mp = getmntopts(optarg, mopts, &mntflags, &altflags); if (mp == NULL) err(1, "getmntopts"); if (altflags & ALTF_GROUP) args.gid = getgrp(getmntoptstr(mp, "group")); if (altflags & ALTF_MODE) args.mode = (mode_t)getmntoptnum(mp, "mode"); freemntopts(mp); break; case 'g': args.gid = getgrp(optarg); break; case 'm': args.mode = (mode_t)strtol(optarg, NULL, 0); break; case '?': default: usage(); } argc -= optind; argv += optind; if (argc != 2) usage(); if (realpath(argv[1], canon_dir) == NULL) /* Check mounton path */ err(1, "realpath %s", argv[1]); if (strncmp(argv[1], canon_dir, MAXPATHLEN)) { warnx("\"%s\" is a relative path.", argv[1]); warnx("using \"%s\" instead.", canon_dir); } if (mount(MOUNT_PTYFS, canon_dir, mntflags, &args)) err(1, "ptyfs on %s", canon_dir); if (mntflags & MNT_GETARGS) printf("version=%d, gid=%lu, mode=0%o\n", args.version, (unsigned long)args.gid, args.mode); return 0; } static void usage(void) { (void)fprintf(stderr, "Usage: %s [-g ] [-m ] [-o options] ptyfs mountpoint\n", getprogname()); exit(1); }