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/*
* Copyright (c) 1997-2003 Erez Zadok
* Copyright (c) 1989 Jan-Simon Pendry
* Copyright (c) 1989 Imperial College of Science, Technology & Medicine
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* 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 acknowledgment:
* 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.
*
* %W% (Berkeley) %G%
*
* $Id: amfs_program.c,v 1.6.2.3 2002/12/27 22:44:32 ezk Exp $
*
*/
/*
* Program file system
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amd.h>
/* forward definitions */
static char *amfs_program_match(am_opts *fo);
static int amfs_program_fmount(mntfs *mf);
static int amfs_program_fumount(mntfs *mf);
static int amfs_program_init(mntfs *mf);
/*
* Ops structure
*/
am_ops amfs_program_ops =
{
"program",
amfs_program_match,
amfs_program_init,
amfs_auto_fmount,
amfs_program_fmount,
amfs_auto_fumount,
amfs_program_fumount,
amfs_error_lookuppn,
amfs_error_readdir,
0, /* amfs_program_readlink */
0, /* amfs_program_mounted */
0, /* amfs_program_umounted */
find_amfs_auto_srvr,
FS_BACKGROUND | FS_AMQINFO
};
/*
* Execute needs a mount and unmount command.
*/
static char *
amfs_program_match(am_opts *fo)
{
char *prog;
if (!fo->opt_mount || !fo->opt_unmount) {
plog(XLOG_ERROR, "program: both mount and unmount must be specified");
return 0;
}
prog = strchr(fo->opt_mount, ' ');
return strdup(prog ? prog + 1 : fo->opt_mount);
}
static int
amfs_program_init(mntfs *mf)
{
/*
* Save unmount command
*/
if (mf->mf_refc == 1) {
mf->mf_private = (voidp) strdup(mf->mf_fo->opt_unmount);
mf->mf_prfree = (void (*)(voidp)) free;
}
return 0;
}
static int
amfs_program_exec(char *info)
{
char **xivec;
int error;
/*
* Split copy of command info string
*/
info = strdup(info);
if (info == 0)
return ENOBUFS;
xivec = strsplit(info, ' ', '\'');
/*
* Put stdout to stderr
*/
(void) fclose(stdout);
if (!logfp)
logfp = stderr; /* initialize before possible first use */
(void) dup(fileno(logfp));
if (fileno(logfp) != fileno(stderr)) {
(void) fclose(stderr);
(void) dup(fileno(logfp));
}
/*
* Try the exec
*/
#ifdef DEBUG
amuDebug(D_FULL) {
char **cp = xivec;
plog(XLOG_DEBUG, "executing (un)mount command...");
while (*cp) {
plog(XLOG_DEBUG, "arg[%ld] = '%s'", (long) (cp - xivec), *cp);
cp++;
}
}
#endif /* DEBUG */
if (xivec[0] == 0 || xivec[1] == 0) {
errno = EINVAL;
plog(XLOG_USER, "1st/2nd args missing to (un)mount program");
} else {
(void) execv(xivec[0], xivec + 1);
}
/*
* Save error number
*/
error = errno;
plog(XLOG_ERROR, "exec failed: %m");
/*
* Free allocate memory
*/
XFREE(info);
XFREE(xivec);
/*
* Return error
*/
return error;
}
static int
amfs_program_fmount(mntfs *mf)
{
return amfs_program_exec(mf->mf_fo->opt_mount);
}
static int
amfs_program_fumount(mntfs *mf)
{
return amfs_program_exec((char *) mf->mf_private);
}
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