Annotation of mandoc/compat_stringlist.c, Revision 1.1
1.1 ! schwarze 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: #if defined(LIBC_SCCS) && !defined(lint)
! 30: static char *rcsid = "$NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $";
! 31: #endif /* LIBC_SCCS and not lint */
! 32: #include <sys/cdefs.h>
! 33: __FBSDID("$FreeBSD$");
! 34:
! 35: #include "namespace.h"
! 36: #include <stdio.h>
! 37: #include <string.h>
! 38: #include <err.h>
! 39: #include <stdlib.h>
! 40: #include <stringlist.h>
! 41: #include "un-namespace.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: %m");
! 56:
! 57: sl->sl_cur = 0;
! 58: sl->sl_max = _SL_CHUNKSIZE;
! 59: sl->sl_str = malloc(sl->sl_max * sizeof(char *));
! 60: if (sl->sl_str == NULL)
! 61: _err(1, "stringlist: %m");
! 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 = reallocf(sl->sl_str, sl->sl_max * sizeof(char *));
! 75: if (sl->sl_str == NULL)
! 76: return (-1);
! 77: }
! 78: sl->sl_str[sl->sl_cur++] = name;
! 79: return (0);
! 80: }
! 81:
! 82:
! 83: /*
! 84: * sl_free(): Free a stringlist
! 85: */
! 86: void
! 87: sl_free(StringList *sl, int all)
! 88: {
! 89: size_t i;
! 90:
! 91: if (sl == NULL)
! 92: return;
! 93: if (sl->sl_str) {
! 94: if (all)
! 95: for (i = 0; i < sl->sl_cur; i++)
! 96: free(sl->sl_str[i]);
! 97: free(sl->sl_str);
! 98: }
! 99: free(sl);
! 100: }
! 101:
! 102:
! 103: /*
! 104: * sl_find(): Find a name in the string list
! 105: */
! 106: char *
! 107: sl_find(StringList *sl, const char *name)
! 108: {
! 109: size_t i;
! 110:
! 111: for (i = 0; i < sl->sl_cur; i++)
! 112: if (strcmp(sl->sl_str[i], name) == 0)
! 113: return sl->sl_str[i];
! 114:
! 115: return NULL;
! 116: }
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