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      1 /*	$NetBSD: compat_getfh.c,v 1.7 2024/01/20 14:52:46 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2006 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Martin Husemann <martin (at) NetBSD.org>.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 
     33 #include <sys/cdefs.h>
     34 #if defined(LIBC_SCCS) && !defined(lint)
     35 __RCSID("$NetBSD: compat_getfh.c,v 1.7 2024/01/20 14:52:46 christos Exp $");
     36 #endif /* LIBC_SCCS and not lint */
     37 
     38 #define __LIBC12_SOURCE__
     39 
     40 #include <sys/types.h>
     41 #include <sys/mount.h>
     42 #include <compat/sys/mount.h>
     43 #include <compat/include/fstypes.h>
     44 
     45 #include <errno.h>
     46 
     47 __warn_references(getfh,
     48     "warning: reference to compatibility getfh(); include <sys/mount.h> to generate correct reference")
     49 
     50 
     51 /*
     52  * Convert old getfh() call to new calling convention
     53  */
     54 int
     55 getfh(const char *path, struct compat_30_fhandle *fhp)
     56 {
     57 	size_t fh_size = sizeof(*fhp);
     58 	int ret;
     59 
     60 	ret = __getfh30(path, (void*)fhp, &fh_size);
     61 	if (ret != 0) {
     62 		return ret;
     63 	}
     64 	if (fh_size != FHANDLE30_SIZE) {
     65 		errno = EINVAL;
     66 		return -1;
     67 	}
     68 	return 0;
     69 }
     70