1 /* 2 * Copyright (c) 1994 Christos Zoulas 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * Copyright 2012 Nexenta Systems, Inc. All rights reserved. 31 */ 32 33 #include <err.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 38 #include "stringlist.h" 39 40 #define _SL_CHUNKSIZE 20 41 42 stringlist * 43 sl_init(void) 44 { 45 stringlist *sl; 46 47 if ((sl = malloc(sizeof (stringlist))) == NULL) 48 err(1, "malloc"); 49 50 sl->sl_cur = 0; 51 sl->sl_max = _SL_CHUNKSIZE; 52 sl->sl_str = malloc(sl->sl_max * sizeof (char *)); 53 if (sl->sl_str == NULL) 54 err(1, "malloc"); 55 56 return (sl); 57 } 58 59 int 60 sl_add(stringlist *sl, char *name) 61 { 62 63 if (sl->sl_cur == sl->sl_max - 1) { 64 sl->sl_max += _SL_CHUNKSIZE; 65 sl->sl_str = realloc(sl->sl_str, sl->sl_max * sizeof (char *)); 66 if (sl->sl_str == NULL) 67 return (-1); 68 } 69 sl->sl_str[sl->sl_cur++] = name; 70 71 return (0); 72 } 73 74 75 void 76 sl_free(stringlist *sl, int all) 77 { 78 size_t i; 79 80 if (sl == NULL) 81 return; 82 if (sl->sl_str) { 83 if (all) 84 for (i = 0; i < sl->sl_cur; i++) 85 free(sl->sl_str[i]); 86 free(sl->sl_str); 87 } 88 free(sl); 89 } 90 91 92 char * 93 sl_find(stringlist *sl, char *name) 94 { 95 size_t i; 96 97 for (i = 0; i < sl->sl_cur; i++) 98 if (strcmp(sl->sl_str[i], name) == 0) 99 return (sl->sl_str[i]); 100 101 return (NULL); 102 } 103