GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/tinfo/strings.c Lines: 0 29 0.0 %
Date: 2017-11-13 Branches: 0 20 0.0 %

Line Branch Exec Source
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/* $OpenBSD: strings.c,v 1.4 2010/01/12 23:22:06 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 2000-2003,2007 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/****************************************************************************
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 *  Author: Thomas E. Dickey                                                *
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 ****************************************************************************/
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/*
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**	lib_mvcur.c
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**/
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#include <curses.priv.h>
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MODULE_ID("$Id: strings.c,v 1.4 2010/01/12 23:22:06 nicm Exp $")
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/****************************************************************************
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 * Useful string functions (especially for mvcur)
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 ****************************************************************************/
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#if !HAVE_STRSTR
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NCURSES_EXPORT(char *)
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_nc_strstr(const char *haystack, const char *needle)
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{
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    size_t len1 = strlen(haystack);
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    size_t len2 = strlen(needle);
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    char *result = 0;
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    while ((len1 != 0) && (len1-- >= len2)) {
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	if (!strncmp(haystack, needle, len2)) {
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	    result = (char *) haystack;
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	    break;
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	}
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	haystack++;
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    }
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    return result;
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}
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#endif
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/*
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 * Initialize the descriptor so we can append to it.  Note that 'src' may
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 * be a null pointer (see _nc_str_null), so the corresponding strcat and
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 * strcpy calls have to allow for this.
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 */
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NCURSES_EXPORT(string_desc *)
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_nc_str_init(string_desc * dst, char *src, size_t len)
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{
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    if (dst != 0) {
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	dst->s_head = src;
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	dst->s_tail = src;
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	dst->s_size = len - 1;
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	dst->s_init = dst->s_size;
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	if (src != 0)
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	    *src = 0;
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    }
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    return dst;
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}
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/*
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 * Initialize the descriptor for only tracking the amount of memory used.
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 */
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NCURSES_EXPORT(string_desc *)
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_nc_str_null(string_desc * dst, size_t len)
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{
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    return _nc_str_init(dst, 0, len);
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}
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/*
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 * Copy a descriptor
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 */
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NCURSES_EXPORT(string_desc *)
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_nc_str_copy(string_desc * dst, string_desc * src)
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{
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    *dst = *src;
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    return dst;
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}
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/*
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 * Replaces strcat into a fixed buffer, returning false on failure.
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 */
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NCURSES_EXPORT(bool)
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_nc_safe_strcat(string_desc * dst, const char *src)
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{
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    if (src != 0) {
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	size_t len = strlen(src);
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	if (len < dst->s_size) {
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	    if (dst->s_tail != 0) {
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		strlcpy(dst->s_tail, src, dst->s_size);
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		dst->s_tail += len;
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	    }
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	    dst->s_size -= len;
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	    return TRUE;
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	}
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    }
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    return FALSE;
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}
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/*
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 * Replaces strcpy into a fixed buffer, returning false on failure.
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 */
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NCURSES_EXPORT(bool)
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_nc_safe_strcpy(string_desc * dst, const char *src)
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{
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    if (src != 0) {
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	size_t len = strlen(src);
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	if (len < dst->s_size) {
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	    if (dst->s_head != 0) {
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		strlcpy(dst->s_head, src, dst->s_size);
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		dst->s_tail = dst->s_head + len;
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	    }
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	    dst->s_size = dst->s_init - len;
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	    return TRUE;
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	}
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    }
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    return FALSE;
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}