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      1 /*	$NetBSD: compat___stat30.c,v 1.4 2013/10/04 21:07:37 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Frank van der Linden
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed for the NetBSD Project
     18  *      by Frank van der Linden
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 #if defined(LIBC_SCCS) && !defined(lint)
     36 __RCSID("$NetBSD: compat___stat30.c,v 1.4 2013/10/04 21:07:37 christos Exp $");
     37 #endif /* LIBC_SCCS and not lint */
     38 
     39 #define __LIBC12_SOURCE__
     40 
     41 #include <sys/types.h>
     42 #include <sys/param.h>
     43 #include <sys/stat.h>
     44 #include <sys/mount.h>
     45 #include <compat/sys/time.h>
     46 #include <compat/sys/stat.h>
     47 #include <compat/sys/mount.h>
     48 
     49 __warn_references(__stat30,
     50     "warning: reference to compatibility __stat30(); include <sys/stat.h> to generate correct reference")
     51 
     52 __warn_references(__fstat30,
     53     "warning: reference to compatibility __fstat30(); include <sys/stat.h> to generate correct reference")
     54 
     55 __warn_references(__lstat30,
     56     "warning: reference to compatibility __lstat30(); include <sys/stat.h> to generate correct reference")
     57 
     58 __warn_references(__fhstat40,
     59     "warning: reference to compatibility __fhstat40(); include <sys/mount.h> to generate correct reference")
     60 
     61 
     62 __strong_alias(__stat30, __compat___stat30)
     63 __strong_alias(__fstat30, __compat___fstat30)
     64 __strong_alias(__lstat30, __compat___lstat30)
     65 __strong_alias(__fhstat40, __compat___fhstat40)
     66 
     67 /*
     68  * Convert from a new to an old stat structure.
     69  */
     70 
     71 static void cvtstat(struct stat30 *, const struct stat *);
     72 
     73 static void
     74 cvtstat(struct stat30 *ost, const struct stat *st)
     75 {
     76 
     77 	ost->st_dev = (uint32_t)st->st_dev;
     78 	ost->st_ino = st->st_ino;
     79 	ost->st_mode = st->st_mode;
     80 	ost->st_nlink = st->st_nlink;
     81 	ost->st_uid = st->st_uid;
     82 	ost->st_gid = st->st_gid;
     83 	ost->st_rdev = (uint32_t)st->st_rdev;
     84 	timespec_to_timespec50(&st->st_atimespec, &ost->st_atimespec);
     85 	timespec_to_timespec50(&st->st_mtimespec, &ost->st_mtimespec);
     86 	timespec_to_timespec50(&st->st_ctimespec, &ost->st_ctimespec);
     87 	timespec_to_timespec50(&st->st_birthtimespec, &ost->st_birthtimespec);
     88 	ost->st_size = st->st_size;
     89 	ost->st_blocks = st->st_blocks;
     90 	ost->st_blksize = st->st_blksize;
     91 	ost->st_flags = st->st_flags;
     92 	ost->st_gen = st->st_gen;
     93 }
     94 
     95 int
     96 __compat___stat30(const char *file, struct stat30 *ost)
     97 {
     98 	struct stat nst;
     99 	int ret;
    100 
    101 	if ((ret = __stat50(file, &nst)) == -1)
    102 		return ret;
    103 	cvtstat(ost, &nst);
    104 	return ret;
    105 }
    106 
    107 int
    108 __compat___fstat30(int f, struct stat30 *ost)
    109 {
    110 	struct stat nst;
    111 	int ret;
    112 
    113 	if ((ret = __fstat50(f, &nst)) == -1)
    114 		return ret;
    115 	cvtstat(ost, &nst);
    116 	return ret;
    117 }
    118 
    119 int
    120 __compat___lstat30(const char *file, struct stat30 *ost)
    121 {
    122 	struct stat nst;
    123 	int ret;
    124 
    125 	if ((ret = __lstat50(file, &nst)) == -1)
    126 		return ret;
    127 	cvtstat(ost, &nst);
    128 	return ret;
    129 }
    130 
    131 int
    132 __compat___fhstat40(const void *fh, size_t fh_size, struct stat30 *ost)
    133 {
    134 	struct stat nst;
    135 	int ret;
    136 
    137 	if ((ret = __fhstat50(fh, fh_size, &nst)) == -1)
    138 		return ret;
    139 	cvtstat(ost, &nst);
    140 	return ret;
    141 }
    142