226 lines
6.5 KiB
C
226 lines
6.5 KiB
C
/* $NetBSD: mount_ptyfs.c,v 1.18 2020/07/26 08:20:23 mlelstv 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 <sys/cdefs.h>
|
|
#ifndef lint
|
|
__COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\
|
|
The Regents of the University of California. All rights reserved.");
|
|
#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 1.18 2020/07/26 08:20:23 mlelstv Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <fs/ptyfs/ptyfs.h>
|
|
|
|
#include <err.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <grp.h>
|
|
#include <util.h>
|
|
|
|
#include <mntopts.h>
|
|
|
|
#include "mountprog.h"
|
|
|
|
#define ALTF_GROUP 0x1
|
|
#define ALTF_MODE 0x2
|
|
#define ALTF_CHROOT 0x4 /* compat */
|
|
|
|
static const struct mntopt mopts[] = {
|
|
MOPT_STDOPTS,
|
|
MOPT_GETARGS,
|
|
MOPT_NOATIME,
|
|
MOPT_RELATIME,
|
|
{ "group", 0, ALTF_GROUP, 1 },
|
|
{ "mode", 0, ALTF_MODE, 1 },
|
|
{ "chroot", 0, ALTF_CHROOT, 1 }, /* compat */
|
|
MOPT_NULL,
|
|
};
|
|
|
|
int mount_ptyfs(int argc, char **argv);
|
|
|
|
static gid_t getgrp(const char *name);
|
|
__dead 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;
|
|
args.flags = 0;
|
|
|
|
while ((ch = getopt(argc, argv, "cg:m:o:")) != -1)
|
|
switch (ch) {
|
|
case 'c': /* compat */
|
|
compat:
|
|
warnx("-c and -o chroot options are obsolete");
|
|
break;
|
|
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");
|
|
if (altflags & ALTF_CHROOT)
|
|
goto compat;
|
|
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();
|
|
|
|
pathadj(argv[1], canon_dir);
|
|
|
|
if (mount(MOUNT_PTYFS, canon_dir, mntflags, &args, sizeof args) == -1)
|
|
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 <group|gid>] [-m <mode>] [-o options] "
|
|
"ptyfs mountpoint\n", getprogname());
|
|
exit(1);
|
|
}
|