Annotation of mandoc/compat_stringlist.c, Revision 1.1.1.1
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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