124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/* $NetBSD: mtab.c,v 1.1.1.5 1999/02/01 18:45:44 christos Exp $ */
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/*
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* Copyright (c) 1997-1999 Erez Zadok
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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 The Regents of the University of California.
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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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* %W% (Berkeley) %G%
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*
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* Id: mtab.c,v 1.2 1999/01/10 21:54:37 ezk Exp
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*
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <am_defs.h>
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#include <amu.h>
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/*
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* Firewall /etc/mtab entries
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*/
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void
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mnt_free(mntent_t *mp)
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{
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XFREE(mp->mnt_fsname);
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XFREE(mp->mnt_dir);
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XFREE(mp->mnt_type);
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XFREE(mp->mnt_opts);
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#ifdef HAVE_FIELD_MNTENT_T_MNT_TIME
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# ifdef HAVE_FIELD_MNTENT_T_MNT_TIME_STRING
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XFREE(mp->mnt_time);
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# endif /* HAVE_FIELD_MNTENT_T_MNT_TIME_STRING */
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#endif /* HAVE_FIELD_MNTENT_T_MNT_TIME */
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XFREE(mp);
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}
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/*
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* Discard memory allocated for mount list
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*/
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void
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discard_mntlist(mntlist *mp)
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{
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mntlist *mp2;
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while ((mp2 = mp)) {
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mp = mp->mnext;
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if (mp2->mnt)
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mnt_free(mp2->mnt);
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XFREE(mp2);
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}
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}
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/*
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* Throw away a mount list
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*/
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void
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free_mntlist(mntlist *mp)
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{
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discard_mntlist(mp);
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#ifdef MOUNT_TABLE_ON_FILE
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unlock_mntlist();
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#endif /* MOUNT_TABLE_ON_FILE */
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}
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/*
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* Utility routine which determines the value of a
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* numeric option in the mount options (such as port=%d).
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* Returns 0 if the option is not specified.
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*/
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int
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hasmntval(mntent_t *mnt, char *opt)
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{
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char *str = hasmntopt(mnt, opt);
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if (str) {
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char *eq = strchr(str, '=');
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if (eq)
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return atoi(eq + 1);
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else
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plog(XLOG_USER, "bad numeric option \"%s\" in \"%s\"", opt, str);
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}
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return 0;
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}
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