121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/* $NetBSD: hasmntopt.c,v 1.9 2006/02/05 16:28:56 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1997-2005 Erez Zadok
|
|
* Copyright (c) 1990 Jan-Simon Pendry
|
|
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
|
|
* Copyright (c) 1990 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
|
|
n * 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.
|
|
*
|
|
*
|
|
* File: am-utils/libamu/hasmntopt.c
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif /* HAVE_CONFIG_H */
|
|
#include <am_defs.h>
|
|
#include <amu.h>
|
|
|
|
#ifndef MNTMAXSTR
|
|
# define MNTMAXSTR 256
|
|
#endif /* not MNTMAXSTR */
|
|
|
|
|
|
/*
|
|
* Some systems don't provide these to the user,
|
|
* but amd needs them, so...
|
|
*
|
|
* From: Piete Brooks <pb@cl.cam.ac.uk>
|
|
*/
|
|
static char *
|
|
nextmntopt(char **p)
|
|
{
|
|
char *cp = *p;
|
|
char *rp;
|
|
|
|
/*
|
|
* Skip past white space
|
|
*/
|
|
while (*cp && isspace((int) *cp))
|
|
cp++;
|
|
|
|
/*
|
|
* Word starts here
|
|
*/
|
|
rp = cp;
|
|
|
|
/*
|
|
* Scan to send of string or separator
|
|
*/
|
|
while (*cp && *cp != ',')
|
|
cp++;
|
|
|
|
/*
|
|
* If separator found the overwrite with null char.
|
|
*/
|
|
if (*cp) {
|
|
*cp = '\0';
|
|
cp++;
|
|
}
|
|
|
|
/*
|
|
* Return value for next call
|
|
*/
|
|
*p = cp;
|
|
return rp;
|
|
}
|
|
|
|
|
|
/*
|
|
* replacement for hasmntopt if the system does not have it.
|
|
*/
|
|
char *
|
|
amu_hasmntopt(mntent_t *mnt, char *opt)
|
|
{
|
|
char t[MNTMAXSTR];
|
|
char *f;
|
|
char *o = t;
|
|
size_t l = strlen(opt);
|
|
|
|
xstrlcpy(t, mnt->mnt_opts, sizeof(t));
|
|
|
|
while (*(f = nextmntopt(&o)))
|
|
if (NSTREQ(opt, f, l))
|
|
return f - t + mnt->mnt_opts;
|
|
|
|
return 0;
|
|
}
|