/* $OpenBSD: stringlist.c,v 1.6 2004/09/16 04:39:16 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 1.6 2004/09/16 04:39:16 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(void) { 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(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(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); }