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 34 #if 0 35 #if defined(LIBC_SCCS) && !defined(lint) 36 static char *rcsid = "$NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $"; 37 #endif /* LIBC_SCCS and not lint */ 38 #endif 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <stdio.h> 44 #include <string.h> 45 #include <err.h> 46 #include <stdlib.h> 47 #include <stringlist.h> 48 49 #define _SL_CHUNKSIZE 20 50 51 /* 52 * sl_init(): Initialize a string list 53 */ 54 StringList * 55 sl_init() 56 { 57 StringList *sl = malloc(sizeof(StringList)); 58 if (sl == NULL) 59 _err(1, "stringlist: %m"); 60 61 sl->sl_cur = 0; 62 sl->sl_max = _SL_CHUNKSIZE; 63 sl->sl_str = malloc(sl->sl_max * sizeof(char *)); 64 if (sl->sl_str == NULL) 65 _err(1, "stringlist: %m"); 66 return sl; 67 } 68 69 70 /* 71 * sl_add(): Add an item to the string list 72 */ 73 void 74 sl_add(sl, name) 75 StringList *sl; 76 char *name; 77 { 78 if (sl->sl_cur == sl->sl_max - 1) { 79 sl->sl_max += _SL_CHUNKSIZE; 80 sl->sl_str = reallocf(sl->sl_str, sl->sl_max * sizeof(char *)); 81 if (sl->sl_str == NULL) 82 _err(1, "stringlist: %m"); 83 } 84 sl->sl_str[sl->sl_cur++] = name; 85 } 86 87 88 /* 89 * sl_free(): Free a stringlist 90 */ 91 void 92 sl_free(sl, all) 93 StringList *sl; 94 int all; 95 { 96 size_t i; 97 98 if (sl == NULL) 99 return; 100 if (sl->sl_str) { 101 if (all) 102 for (i = 0; i < sl->sl_cur; i++) 103 free(sl->sl_str[i]); 104 free(sl->sl_str); 105 } 106 free(sl); 107 } 108 109 110 /* 111 * sl_find(): Find a name in the string list 112 */ 113 char * 114 sl_find(sl, name) 115 StringList *sl; 116 char *name; 117 { 118 size_t i; 119 120 for (i = 0; i < sl->sl_cur; i++) 121 if (strcmp(sl->sl_str[i], name) == 0) 122 return sl->sl_str[i]; 123 124 return NULL; 125 } 126