1 /* $NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Christos Zoulas 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christos Zoulas. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $ 34 * $DragonFly: src/lib/libc/gen/stringlist.c,v 1.3 2005/11/13 00:07:42 swildner Exp $ 35 */ 36 37 #include <stdio.h> 38 #include <string.h> 39 #include <err.h> 40 #include <stdlib.h> 41 #include <stringlist.h> 42 43 #define _SL_CHUNKSIZE 20 44 45 /* 46 * sl_init(): Initialize a string list 47 */ 48 StringList * 49 sl_init(void) 50 { 51 StringList *sl = malloc(sizeof(StringList)); 52 if (sl == NULL) 53 err(1, "stringlist: %m"); 54 55 sl->sl_cur = 0; 56 sl->sl_max = _SL_CHUNKSIZE; 57 sl->sl_str = malloc(sl->sl_max * sizeof(char *)); 58 if (sl->sl_str == NULL) 59 err(1, "stringlist: %m"); 60 return sl; 61 } 62 63 64 /* 65 * sl_add(): Add an item to the string list 66 */ 67 void 68 sl_add(StringList *sl, char *name) 69 { 70 if (sl->sl_cur == sl->sl_max - 1) { 71 sl->sl_max += _SL_CHUNKSIZE; 72 sl->sl_str = reallocf(sl->sl_str, sl->sl_max * sizeof(char *)); 73 if (sl->sl_str == NULL) 74 err(1, "stringlist: %m"); 75 } 76 sl->sl_str[sl->sl_cur++] = name; 77 } 78 79 80 /* 81 * sl_free(): Free a stringlist 82 */ 83 void 84 sl_free(StringList *sl, int all) 85 { 86 size_t i; 87 88 if (sl == NULL) 89 return; 90 if (sl->sl_str) { 91 if (all) 92 for (i = 0; i < sl->sl_cur; i++) 93 free(sl->sl_str[i]); 94 free(sl->sl_str); 95 } 96 free(sl); 97 } 98 99 100 /* 101 * sl_find(): Find a name in the string list 102 */ 103 char * 104 sl_find(StringList *sl, char *name) 105 { 106 size_t i; 107 108 for (i = 0; i < sl->sl_cur; i++) 109 if (strcmp(sl->sl_str[i], name) == 0) 110 return sl->sl_str[i]; 111 112 return NULL; 113 } 114