43fa6fe319
identifier namespace by renaming non standard functions and variables such that they have a leading underscore. The library will use those names internally. Weak aliases are used to provide the original names to the API. This is only the first part of this change. It is most of the functions which are implemented in C for all NetBSD ports. Subsequent changes are to add the same support to the remaining C files, to assembly files, and to the automagically generated assembly source used for system calls. When all of the above is done, ports with weak alias support should add a definition for __weak_alias to <sys/cdefs.h>.
130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/* $NetBSD: stringlist.c,v 1.4 1997/07/21 14:07:35 jtc Exp $ */
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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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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: stringlist.c,v 1.4 1997/07/21 14:07:35 jtc Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <stdio.h>
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#include <string.h>
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#include <err.h>
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#include <stdlib.h>
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#include <stringlist.h>
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#ifdef __weak_alias
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__weak_alias(sl_add,_sl_add);
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__weak_alias(sl_find,_sl_find);
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__weak_alias(sl_free,_sl_free);
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__weak_alias(sl_init,_sl_init);
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#endif
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#define _SL_CHUNKSIZE 20
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/*
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* sl_init(): Initialize a string list
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*/
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StringList *
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sl_init()
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{
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StringList *sl = malloc(sizeof(StringList));
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if (sl == NULL)
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err(1, "stringlist: %m");
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sl->sl_cur = 0;
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sl->sl_max = _SL_CHUNKSIZE;
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sl->sl_str = malloc(sl->sl_max * sizeof(char *));
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if (sl->sl_str == NULL)
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err(1, "stringlist: %m");
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return sl;
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}
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/*
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* sl_add(): Add an item to the string list
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*/
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void
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sl_add(sl, name)
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StringList *sl;
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char *name;
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{
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if (sl->sl_cur == sl->sl_max - 1) {
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sl->sl_max += _SL_CHUNKSIZE;
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sl->sl_str = realloc(sl->sl_str, sl->sl_max * sizeof(char *));
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if (sl->sl_str == NULL)
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err(1, "stringlist: %m");
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}
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sl->sl_str[sl->sl_cur++] = name;
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}
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/*
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* sl_free(): Free a stringlist
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*/
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void
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sl_free(sl, all)
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StringList *sl;
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int all;
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{
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size_t i;
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if (sl == NULL)
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return;
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if (sl->sl_str) {
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if (all)
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for (i = 0; i < sl->sl_cur; i++)
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free(sl->sl_str[i]);
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free(sl->sl_str);
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}
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free(sl);
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}
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/*
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* sl_find(): Find a name in the string list
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*/
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char *
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sl_find(sl, name)
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StringList *sl;
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char *name;
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{
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size_t i;
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for (i = 0; i < sl->sl_cur; i++)
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if (strcmp(sl->sl_str[i], name) == 0)
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return sl->sl_str[i];
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return NULL;
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}
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