/core/10.4/fusefs/mount/getmntopts.c
http://macfuse.googlecode.com/ · C · 171 lines · 87 code · 19 blank · 65 comment · 40 complexity · cf6c84657d2127fa88a006b195dbb2b0 MD5 · raw file
- /*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
- * Reserved. This file contains Original Code and/or Modifications of
- * Original Code as defined in and that are subject to the Apple Public
- * Source License Version 1.0 (the 'License'). You may not use this file
- * except in compliance with the License. Please obtain a copy of the
- * License at http://www.apple.com/publicsource and read it before using
- * this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License."
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*-
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * 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.
- */
- #include <sys/param.h>
- #include <sys/stat.h>
- #include <err.h>
- #include <errno.h>
- #include <stdlib.h>
- #include <string.h>
- #include <sysexits.h>
- #include "mntopts.h"
- int getmnt_silent = 1;
- void
- getmntopts(options, m0, flagp, altflagp)
- const char *options;
- const struct mntopt *m0;
- int *flagp;
- u_int64_t *altflagp;
- {
- const struct mntopt *m;
- int negative;
- size_t len;
- 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)
- *++p = '\0';
- /* Scan option table. */
- for (m = m0; m->m_option != NULL; ++m) {
- len = strlen(m->m_option);
- if (strncasecmp(opt, m->m_option, len) == 0)
- if ( opt[len] == '\0'
- || opt[len] == '='
- )
- break;
- }
- /* Save flag, or fail if option is not recognized. */
- if (m->m_option) {
- if (m->m_altloc) {
- if (negative == m->m_inverse)
- *altflagp |= m->m_flag;
- else
- *altflagp &= ~m->m_flag;
- } else {
- u_int32_t m_flag32;
- m_flag32 = (u_int32_t)(m->m_flag & 0xFFFFFFFF);
- if (negative == m->m_inverse)
- *flagp |= m_flag32;
- else
- *flagp &= ~m_flag32;
- }
- } else if (!getmnt_silent) {
- errx(1, "-o %s: option not supported", opt);
- }
- }
- free(optbuf);
- }
- void
- rmslashes(rrpin, rrpout)
- char *rrpin;
- char *rrpout;
- {
- char *rrpoutstart;
- *rrpout = *rrpin;
- for (rrpoutstart = rrpout; *rrpin != '\0'; *rrpout++ = *rrpin++) {
- /* skip all double slashes */
- while (*rrpin == '/' && *(rrpin + 1) == '/')
- rrpin++;
- }
- /* remove trailing slash if necessary */
- if (rrpout - rrpoutstart > 1 && *(rrpout - 1) == '/')
- *(rrpout - 1) = '\0';
- else
- *rrpout = '\0';
- }
- void
- checkpath(path, resolved)
- const char *path;
- char *resolved;
- {
- struct stat sb;
- if (realpath(path, resolved) != NULL && stat(resolved, &sb) == 0) {
- if (!S_ISDIR(sb.st_mode))
- errx(EX_USAGE, "%s: not a directory", resolved);
- } else
- errx(EX_USAGE, "%s: %s", resolved, strerror(errno));
- }