Annotation of src/usr.bin/ftp/stringlist.c, Revision 1.3
1.3 ! deraadt 1: /* $OpenBSD: stringlist.c,v 1.2 1997/07/25 21:56:23 millert Exp $ */
1.1 millert 2: /* $NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $ */
3:
4: /*
5: * Copyright (c) 1994 Christos Zoulas
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by Christos Zoulas.
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
23: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
26: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: */
34:
35: #if defined(LIBC_SCCS) && !defined(lint)
1.3 ! deraadt 36: static char *rcsid = "$OpenBSD: stringlist.c,v 1.2 1997/07/25 21:56:23 millert Exp $";
1.1 millert 37: #endif /* LIBC_SCCS and not lint */
38:
39: #include <stdio.h>
40: #include <string.h>
41: #include <err.h>
42: #include <stdlib.h>
43:
44: #include "stringlist.h"
45:
46: #define _SL_CHUNKSIZE 20
47:
48: /*
49: * sl_init(): Initialize a string list
50: */
51: StringList *
52: sl_init()
53: {
54: StringList *sl = malloc(sizeof(StringList));
55: if (sl == NULL)
1.3 ! deraadt 56: err(1, "stringlist");
1.1 millert 57:
58: sl->sl_cur = 0;
59: sl->sl_max = _SL_CHUNKSIZE;
60: sl->sl_str = malloc(sl->sl_max * sizeof(char *));
61: if (sl->sl_str == NULL)
1.3 ! deraadt 62: err(1, "stringlist");
1.1 millert 63: return sl;
64: }
65:
66:
67: /*
68: * sl_add(): Add an item to the string list
69: */
70: void
71: sl_add(sl, name)
72: StringList *sl;
73: char *name;
74: {
75: if (sl->sl_cur == sl->sl_max - 1) {
76: sl->sl_max += _SL_CHUNKSIZE;
77: sl->sl_str = realloc(sl->sl_str, sl->sl_max * sizeof(char *));
78: if (sl->sl_str == NULL)
1.3 ! deraadt 79: err(1, "stringlist");
1.1 millert 80: }
81: sl->sl_str[sl->sl_cur++] = name;
82: }
83:
84:
85: /*
86: * sl_free(): Free a stringlist
87: */
88: void
89: sl_free(sl, all)
90: StringList *sl;
91: int all;
92: {
93: size_t i;
94:
95: if (sl == NULL)
96: return;
97: if (sl->sl_str) {
98: if (all)
99: for (i = 0; i < sl->sl_cur; i++)
100: free(sl->sl_str[i]);
101: free(sl->sl_str);
102: }
103: free(sl);
104: }
105:
106:
107: /*
108: * sl_find(): Find a name in the string list
109: */
110: char *
111: sl_find(sl, name)
112: StringList *sl;
113: char *name;
114: {
115: size_t i;
116:
117: for (i = 0; i < sl->sl_cur; i++)
118: if (strcmp(sl->sl_str[i], name) == 0)
119: return sl->sl_str[i];
120:
121: return NULL;
122: }