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/* $OpenBSD: stringlist.c,v 1.4 2003/12/16 21:46:22 deraadt Exp $ */
/* $NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $ */
/*
* Copyright (c) 1994 Christos Zoulas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christos Zoulas.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint) && !defined(SMALL)
static char *rcsid = "$OpenBSD: stringlist.c,v 1.4 2003/12/16 21:46:22 deraadt Exp $";
#endif /* LIBC_SCCS and not lint and not SMALL */
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <stdlib.h>
#include "stringlist.h"
#define _SL_CHUNKSIZE 20
/*
* sl_init(): Initialize a string list
*/
StringList *
sl_init()
{
StringList *sl = malloc(sizeof(StringList));
if (sl == NULL)
err(1, "stringlist");
sl->sl_cur = 0;
sl->sl_max = _SL_CHUNKSIZE;
sl->sl_str = malloc(sl->sl_max * sizeof(char *));
if (sl->sl_str == NULL)
err(1, "stringlist");
return sl;
}
/*
* sl_add(): Add an item to the string list
*/
void
sl_add(sl, name)
StringList *sl;
char *name;
{
if (sl->sl_cur == sl->sl_max - 1) {
sl->sl_max += _SL_CHUNKSIZE;
sl->sl_str = realloc(sl->sl_str, sl->sl_max * sizeof(char *));
if (sl->sl_str == NULL)
err(1, "stringlist");
}
sl->sl_str[sl->sl_cur++] = name;
}
/*
* sl_free(): Free a stringlist
*/
void
sl_free(sl, all)
StringList *sl;
int all;
{
size_t i;
if (sl == NULL)
return;
if (sl->sl_str) {
if (all)
for (i = 0; i < sl->sl_cur; i++)
free(sl->sl_str[i]);
free(sl->sl_str);
}
free(sl);
}
/*
* sl_find(): Find a name in the string list
*/
char *
sl_find(sl, name)
StringList *sl;
char *name;
{
size_t i;
for (i = 0; i < sl->sl_cur; i++)
if (strcmp(sl->sl_str[i], name) == 0)
return sl->sl_str[i];
return NULL;
}
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