GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/nls/catgets.c Lines: 0 34 0.0 %
Date: 2017-11-13 Branches: 0 14 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: catgets.c,v 1.9 2015/09/05 11:25:30 guenther 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 REGENTS OR CONTRIBUTORS BE
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 * 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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#define _NLS_PRIVATE
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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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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 (char *) 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 *) ((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(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(set_hdr[i].__setno);
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		if (r == 0) {
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			msg_hdr = (struct _nls_msg_hdr *) ((char *)catd->__data
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				+ sizeof(struct _nls_cat_hdr)
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				+ ntohl(cat_hdr->__msg_hdr_offset));
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			l = ntohl(set_hdr[i].__index);
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			u = l + ntohl(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 - ntohl(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(cat_hdr->__msg_txt_offset)
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					    + ntohl(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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			return (char *) s;
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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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	return (char *) s;
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}
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DEF_WEAK(catgets);