remove kerberos/heimdal
[dragonfly.git] / lib / libc / gen / getvfsbyname.c
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1 /*
2 * Copyright (c) 1995
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
33 * @(#)kvm_getvfsbyname.c 8.1 (Berkeley) 4/3/95
34 * $FreeBSD: src/lib/libc/gen/getvfsbyname.c,v 1.5 1999/08/27 23:58:45 peter Exp $
35 * $DragonFly: src/lib/libc/gen/getvfsbyname.c,v 1.4 2005/04/26 06:08:42 joerg Exp $
38 #include <sys/param.h>
39 #include <sys/mount.h>
40 #include <sys/sysctl.h>
41 #include <errno.h>
42 #include <string.h>
45 * Given a filesystem name, determine if it is resident in the kernel,
46 * and if it is resident, return its vfsconf structure.
48 int
49 getvfsbyname(const char *fsname, struct vfsconf *vfcp)
51 int name[4], maxtypenum, cnt;
52 size_t buflen;
54 name[0] = CTL_VFS;
55 name[1] = VFS_GENERIC;
56 name[2] = VFS_MAXTYPENUM;
57 buflen = sizeof(maxtypenum);
58 if (sysctl(name, 3, &maxtypenum, &buflen, NULL, (size_t)0) < 0)
59 return (-1);
61 name[2] = VFS_CONF;
62 buflen = sizeof(*vfcp);
63 for (cnt = 0; cnt < maxtypenum; cnt++) {
64 name[3] = cnt;
65 if (sysctl(name, 4, vfcp, &buflen, NULL, (size_t)0) < 0) {
66 if (errno == EOPNOTSUPP)
67 continue;
68 return (-1);
70 if (strcmp(fsname, vfcp->vfc_name) == 0)
71 return (0);
73 errno = ENOENT;
74 return (-1);