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/* |
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* Copyright (c) 1989 Jan-Simon Pendry |
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* Copyright (c) 1989 Imperial College of Science, Technology & Medicine |
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* Copyright (c) 1989, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* This code is derived from software contributed to Berkeley by |
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* Jan-Simon Pendry at Imperial College, London. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* from: @(#)pfs_ops.c 8.1 (Berkeley) 6/6/93 |
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* $Id: pfs_ops.c,v 1.8 2014/10/26 03:28:41 guenther Exp $ |
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*/ |
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#include "am.h" |
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#include <unistd.h> |
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#ifdef HAS_PFS |
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/* |
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* Program file system |
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*/ |
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/* |
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* Execute needs a mount and unmount command. |
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*/ |
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static char * |
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pfs_match(am_opts *fo) |
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{ |
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char *prog; |
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if (!fo->opt_mount || !fo->opt_unmount) { |
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plog(XLOG_USER, "program: no mount/unmount specified"); |
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return 0; |
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} |
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prog = strchr(fo->opt_mount, ' '); |
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return strdup(prog ? prog+1 : fo->opt_mount); |
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} |
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static int |
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pfs_init(mntfs *mf) |
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{ |
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/* |
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* Save unmount command |
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*/ |
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if (mf->mf_refc == 1) { |
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mf->mf_private = strdup(mf->mf_fo->opt_unmount); |
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mf->mf_prfree = free; |
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} |
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return 0; |
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} |
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static int |
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pfs_exec(char *info) |
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{ |
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char **xivec; |
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int error; |
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/* |
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* Split copy of command info string |
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*/ |
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info = strdup(info); |
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if (info == 0) |
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return ENOBUFS; |
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xivec = strsplit(info, ' ', '\''); |
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/* |
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* Put stdout to stderr |
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*/ |
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(void) fclose(stdout); |
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(void) dup(fileno(logfp)); |
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if (fileno(logfp) != fileno(stderr)) { |
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(void) fclose(stderr); |
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(void) dup(fileno(logfp)); |
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} |
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/* |
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* Try the exec |
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*/ |
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#ifdef DEBUG |
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Debug(D_FULL) { |
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char **cp = xivec; |
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plog(XLOG_DEBUG, "executing (un)mount command..."); |
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while (*cp) { |
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plog(XLOG_DEBUG, "arg[%d] = '%s'", cp-xivec, *cp); |
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cp++; |
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} |
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} |
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#endif /* DEBUG */ |
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if (xivec[0] == 0 || xivec[1] == 0) { |
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errno = EINVAL; |
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plog(XLOG_USER, "1st/2nd args missing to (un)mount program"); |
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} else { |
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(void) execv(xivec[0], xivec+1); |
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} |
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/* |
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* Save error number |
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*/ |
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error = errno; |
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plog(XLOG_ERROR, "exec failed: %m"); |
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/* |
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* Free allocate memory |
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*/ |
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free(info); |
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free(xivec); |
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/* |
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* Return error |
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*/ |
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return error; |
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} |
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static int |
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pfs_fmount(mntfs *mf) |
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{ |
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return pfs_exec(mf->mf_fo->opt_mount); |
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} |
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static int |
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pfs_fumount(mntfs *mf) |
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{ |
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return pfs_exec((char *) mf->mf_private); |
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} |
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/* |
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* Ops structure |
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*/ |
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am_ops pfs_ops = { |
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"program", |
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pfs_match, |
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pfs_init, |
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auto_fmount, |
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pfs_fmount, |
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auto_fumount, |
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pfs_fumount, |
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efs_lookuppn, |
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efs_readdir, |
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0, /* pfs_readlink */ |
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0, /* pfs_mounted */ |
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0, /* pfs_umounted */ |
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find_afs_srvr, |
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FS_BACKGROUND|FS_AMQINFO |
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}; |
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#endif /* HAS_PFS */ |