/* $OpenBSD: getmntopts.c,v 1.5 2003/06/11 06:22:13 deraadt Exp $ */ /* $NetBSD: getmntopts.c,v 1.3 1995/03/18 14:56:58 cgd Exp $ */ /*- * Copyright (c) 1994 * The Regents of the University of California. All rights reserved. * * 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. */ #ifndef lint #if 0 static char sccsid[] = "@(#)getmntopts.c 8.1 (Berkeley) 3/27/94"; #else static char rcsid[] = "$OpenBSD: getmntopts.c,v 1.5 2003/06/11 06:22:13 deraadt Exp $"; #endif #endif /* not lint */ #include <sys/param.h> #include <sys/mount.h> #include <err.h> #include <errno.h> #include <fstab.h> #include <stdlib.h> #include <string.h> #include "mntopts.h" void getmntopts(const char *options, const struct mntopt *m0, int *flagp) { const struct mntopt *m; int negative; char *opt, *optbuf, *p; /* Copy option string, since it is about to be torn asunder... */ if ((optbuf = strdup(options)) == NULL) err(1, NULL); for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) { /* Check for "no" prefix. */ if (opt[0] == 'n' && opt[1] == 'o') { negative = 1; opt += 2; } else negative = 0; /* * for options with assignments in them (ie. quotas) * ignore the assignment as it's handled elsewhere */ p = strchr(opt, '='); if (p != NULL) *p = '\0'; /* Scan option table. */ for (m = m0; m->m_option != NULL; ++m) if (strcasecmp(opt, m->m_option) == 0) break; /* Save flag, or fail if option is not recognised. */ if (m->m_option) { if (negative == m->m_inverse) *flagp |= m->m_flag; else *flagp &= ~m->m_flag; } else errx(1, "-o %s: option not supported", opt); } free(optbuf); }