GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/netgroup_mkdb/str.c Lines: 0 24 0.0 %
Date: 2017-11-13 Branches: 0 8 0.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 1994 Christos Zoulas
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 * All rights reserved.
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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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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *	This product includes software developed by Christos Zoulas.
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 * 4. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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/*
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 * Counted strings
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 */
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#include <stdlib.h>
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#include <string.h>
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#include "util.h"
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#include "str.h"
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/*
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 * str_init(): Initialize string
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 */
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void
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str_init(struct string *s)
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{
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	s->s_str = NULL;
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	s->s_len = 0;
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}
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/*
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 * str_append(): Append string allocating buffer as necessary
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 */
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void
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str_append(struct string *buf, const char *str, int del)
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{
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	size_t          len = strlen(str) + 1;
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	if (buf->s_str == NULL)
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		buf->s_str = emalloc(len);
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	else {
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		buf->s_str = erealloc(buf->s_str, buf->s_len +
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		    len + (del ? 2 : 1));
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		if (del)
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			buf->s_str[buf->s_len++] = del;
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	}
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	memcpy(&buf->s_str[buf->s_len], str, len);
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	buf->s_len += len - 1;
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}
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/*
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 * str_prepend(): Prepend string allocating buffer as necessary
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 */
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void
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str_prepend(struct string *buf, const char *str, int del)
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{
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	char           *ptr, *sptr;
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	size_t          len = strlen(str) + 1;
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	sptr = ptr = emalloc(buf->s_len + len + (del ? 2 : 1));
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	if (del)
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		*ptr++ = del;
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	memcpy(ptr, str, len);
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	if (buf->s_str) {
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		memcpy(&ptr[len - 1], buf->s_str, buf->s_len + 1);
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		free(buf->s_str);
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	}
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	buf->s_str = sptr;
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	buf->s_len += del ? len : len - 1;
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}
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/*
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 * str_free(): Free a string
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 */
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void
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str_free(struct string *s)
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{
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	free(s->s_str);
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	s->s_str = NULL;
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	s->s_len = 0;
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}