kernel: Use hashdestroy() to free hash tables allocated with hashinit().
[dragonfly.git] / usr.bin / doscmd / ParseBuffer.c
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1/*
2 * Copyright (c) 1992, 1993, 1996
3 * Berkeley Software Design, Inc. 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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Berkeley Software
16 * Design, Inc.
17 *
18 * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * BSDI ParseBuffer.c,v 2.2 1996/04/08 19:32:15 bostic Exp
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31 *
32 * $FreeBSD: src/usr.bin/doscmd/ParseBuffer.c,v 1.2.2.2 2002/04/25 11:04:50 tg Exp $
e0aca170 33 * $DragonFly: src/usr.bin/doscmd/ParseBuffer.c,v 1.4 2005/04/10 20:55:38 drhodus Exp $
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34 */
35
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36#include <stdlib.h>
37#include <string.h>
38
39#include "doscmd.h"
40int
1d1731fa 41ParseBuffer(char *obuf, char **av, int mac)
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42{
43 static char *_buf;
a62ce081 44 char *buf = NULL;
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45 static int buflen = 0;
46 int len;
47
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48 char *b = buf;
49 char *p;
50 char **a;
51 char **e;
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52
53 len = strlen(obuf) + 1;
54 if (len > buflen) {
55 if (buflen)
56 free(_buf);
57 buflen = (len + 1023) & ~1023;
58 _buf = malloc(buflen);
59 }
60 buf = _buf;
61 strcpy(buf, obuf);
62
63 a = av;
64 e = &av[mac];
65
66 while (*buf) {
67 while (*buf == ' ' || *buf == '\t' || *buf == '\n')
68 ++buf;
69 if (*buf) {
70 p = b = buf;
71
72 *a++ = buf;
73 if (a == e) {
60233e58 74 a[-1] = NULL;
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75 return(mac - 1);
76 }
77
78 while (*p && !(*p == ' ' || *p == '\t' || *p == '\n')) {
79 *b++ = *p++ & 0177;
80 }
81 if (*p)
82 ++p;
83 *b = 0;
84 buf = p;
85 }
86 }
60233e58 87 *a = NULL;
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88 return(a - av);
89}