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File: [cvs.NetBSD.org] / src / lib / libc / gen / stringlist.c (download)

Revision 1.13, Mon Apr 28 20:22:59 2008 UTC (6 years, 6 months ago) by martin
Branch: MAIN
CVS Tags: yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, netbsd-7-base, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, matt-premerge-20091211, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, christos-time_t-nbase, christos-time_t-base, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver, HEAD
Branch point for: christos-time_t
Changes since 1.12: +2 -9 lines

Remove clause 3 and 4 from TNF licenses

/*	$NetBSD: stringlist.c,v 1.13 2008/04/28 20:22:59 martin 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 <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: stringlist.c,v 1.13 2008/04/28 20:22:59 martin Exp $");
#endif /* LIBC_SCCS and not lint */

#include "namespace.h"

#include <assert.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stringlist.h>

#ifdef __weak_alias
__weak_alias(sl_add,_sl_add)
__weak_alias(sl_find,_sl_find)
__weak_alias(sl_free,_sl_free)
__weak_alias(sl_init,_sl_init)
__weak_alias(sl_delete,_sl_delete)
#endif

#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)
{

	_DIAGASSERT(sl != NULL);

	if (sl->sl_cur == sl->sl_max - 1) {
		char	**new;

		new = 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, const char *name)
{
	size_t i;

	_DIAGASSERT(sl != NULL);

	for (i = 0; i < sl->sl_cur; i++)
		if (strcmp(sl->sl_str[i], name) == 0)
			return sl->sl_str[i];

	return NULL;
}

int
sl_delete(StringList *sl, const char *name, int all)
{
	size_t i, j;

	for (i = 0; i < sl->sl_cur; i++)
		if (strcmp(sl->sl_str[i], name) == 0) {
			if (all)
				free(sl->sl_str[i]);
			for (j = i + 1; j < sl->sl_cur; j++)
				sl->sl_str[j - 1] = sl->sl_str[j];
			sl->sl_str[--sl->sl_cur] = NULL;
			return 0;
		}
	return -1;
}