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/* $NetBSD: sl_init.c,v 1.6 2014/10/31 18:59:32 spz Exp $ */
/* from NetBSD: stringlist.c,v 1.10 2000/01/25 16:24:40 enami Exp */
/*-
* Copyright (c) 1994, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#include "tnftp.h"
#define _SL_CHUNKSIZE 20
/*
* sl_init(): Initialize a string list
*/
StringList *
sl_init(void)
{
StringList *sl;
sl = malloc(sizeof(StringList));
if (sl == NULL)
return (NULL);
sl->sl_cur = 0;
sl->sl_max = _SL_CHUNKSIZE;
sl->sl_str = malloc(sl->sl_max * sizeof(char *));
if (sl->sl_str == NULL) {
free(sl);
sl = NULL;
}
return (sl);
}
/*
* sl_add(): Add an item to the string list
*/
int
sl_add(StringList *sl, char *name)
{
if (sl->sl_cur == sl->sl_max - 1) {
char **new;
new = (char **)realloc(sl->sl_str,
(sl->sl_max + _SL_CHUNKSIZE) * sizeof(char *));
if (new == NULL)
return (-1);
sl->sl_max += _SL_CHUNKSIZE;
sl->sl_str = new;
}
sl->sl_str[sl->sl_cur++] = name;
return (0);
}
/*
* sl_free(): Free a stringlist
*/
void
sl_free(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(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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