1 #include "config.h" 2 3 #if HAVE_STRINGLIST 4 5 int dummy; 6 7 #else 8 9 /* $Id: compat_stringlist.c,v 1.6 2015/11/07 14:22:29 schwarze Exp $ */ 10 /* 11 * Copyright (c) 1994 Christos Zoulas <christos@netbsd.org> 12 * All rights reserved. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 24 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 27 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #if HAVE_ERR 37 #include <err.h> 38 #endif 39 #include <stdlib.h> 40 #include <string.h> 41 #include "compat_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; 52 53 sl = malloc(sizeof(StringList)); 54 if (sl == NULL) 55 err(1, "stringlist"); 56 57 sl->sl_cur = 0; 58 sl->sl_max = _SL_CHUNKSIZE; 59 sl->sl_str = reallocarray(NULL, sl->sl_max, sizeof(char *)); 60 if (sl->sl_str == NULL) 61 err(1, "stringlist"); 62 return sl; 63 } 64 65 66 /* 67 * sl_add(): Add an item to the string list 68 */ 69 int 70 sl_add(StringList *sl, char *name) 71 { 72 if (sl->sl_cur == sl->sl_max - 1) { 73 sl->sl_max += _SL_CHUNKSIZE; 74 sl->sl_str = reallocarray(sl->sl_str, 75 sl->sl_max, sizeof(char *)); 76 if (sl->sl_str == NULL) 77 return (-1); 78 } 79 sl->sl_str[sl->sl_cur++] = name; 80 return (0); 81 } 82 83 84 /* 85 * sl_free(): Free a stringlist 86 */ 87 void 88 sl_free(StringList *sl, int all) 89 { 90 size_t i; 91 92 if (sl == NULL) 93 return; 94 if (sl->sl_str) { 95 if (all) 96 for (i = 0; i < sl->sl_cur; i++) 97 free(sl->sl_str[i]); 98 free(sl->sl_str); 99 } 100 free(sl); 101 } 102 103 104 /* 105 * sl_find(): Find a name in the string list 106 */ 107 char * 108 sl_find(StringList *sl, const char *name) 109 { 110 size_t i; 111 112 for (i = 0; i < sl->sl_cur; i++) 113 if (strcmp(sl->sl_str[i], name) == 0) 114 return sl->sl_str[i]; 115 116 return NULL; 117 } 118 119 #endif 120