f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/* $NetBSD: catgets.c,v 1.19 2012/06/25 22:32:45 abs Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by J.T. Conklin.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: catgets.c,v 1.19 2012/06/25 22:32:45 abs Exp $");
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#endif /* LIBC_SCCS and not lint */
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#define _NLS_PRIVATE
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#include "namespace.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <nl_types.h>
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#ifdef __weak_alias
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__weak_alias(catgets, _catgets)
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#endif
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char *
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_catgets(nl_catd catd, int set_id, int msg_id, const char *s)
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{
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struct _nls_cat_hdr *cat_hdr;
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struct _nls_set_hdr *set_hdr;
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struct _nls_msg_hdr *msg_hdr;
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int l, u, i, r;
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if (catd == (nl_catd) -1) {
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errno = EBADF;
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return __UNCONST(s);
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}
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cat_hdr = (struct _nls_cat_hdr *)catd->__data;
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set_hdr = (struct _nls_set_hdr *)(void *)((char *)catd->__data
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+ sizeof(struct _nls_cat_hdr));
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/* binary search, see knuth algorithm b */
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l = 0;
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u = ntohl((u_int32_t)cat_hdr->__nsets) - 1;
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while (l <= u) {
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i = (l + u) / 2;
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r = set_id - ntohl((u_int32_t)set_hdr[i].__setno);
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if (r == 0) {
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msg_hdr = (struct _nls_msg_hdr *)
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(void *)((char *)catd->__data +
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sizeof(struct _nls_cat_hdr) +
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ntohl((u_int32_t)cat_hdr->__msg_hdr_offset));
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l = ntohl((u_int32_t)set_hdr[i].__index);
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u = l + ntohl((u_int32_t)set_hdr[i].__nmsgs) - 1;
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while (l <= u) {
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i = (l + u) / 2;
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r = msg_id -
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ntohl((u_int32_t)msg_hdr[i].__msgno);
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if (r == 0) {
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return ((char *) catd->__data +
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sizeof(struct _nls_cat_hdr) +
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ntohl((u_int32_t)
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cat_hdr->__msg_txt_offset) +
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ntohl((u_int32_t)
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msg_hdr[i].__offset));
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} else if (r < 0) {
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u = i - 1;
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} else {
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l = i + 1;
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}
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}
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/* not found */
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goto notfound;
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} else if (r < 0) {
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u = i - 1;
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} else {
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l = i + 1;
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}
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}
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notfound:
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/* not found */
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errno = ENOMSG;
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return __UNCONST(s);
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}
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