Annotation of src/usr.bin/ftp/stringlist.c, Revision 1.8
1.8 ! deraadt 1: /* $OpenBSD: stringlist.c,v 1.7 2006/04/25 05:45:20 tedu 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:
1.4 deraadt 35: #if defined(LIBC_SCCS) && !defined(lint) && !defined(SMALL)
1.8 ! deraadt 36: static const char rcsid[] = "$OpenBSD: stringlist.c,v 1.7 2006/04/25 05:45:20 tedu Exp $";
1.4 deraadt 37: #endif /* LIBC_SCCS and not lint and not SMALL */
1.1 millert 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 *
1.5 deraadt 52: sl_init(void)
1.1 millert 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;
1.8 ! deraadt 60: sl->sl_str = calloc(sl->sl_max, sizeof(char *));
1.1 millert 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
1.5 deraadt 71: sl_add(StringList *sl, char *name)
1.1 millert 72: {
73: if (sl->sl_cur == sl->sl_max - 1) {
74: sl->sl_max += _SL_CHUNKSIZE;
75: sl->sl_str = realloc(sl->sl_str, sl->sl_max * sizeof(char *));
76: if (sl->sl_str == NULL)
1.3 deraadt 77: err(1, "stringlist");
1.1 millert 78: }
79: sl->sl_str[sl->sl_cur++] = name;
80: }
81:
82:
83: /*
84: * sl_free(): Free a stringlist
85: */
86: void
1.5 deraadt 87: sl_free(StringList *sl, int all)
1.1 millert 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: }