/[svn]/hopm/trunk/src/compat.c
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Contents of /hopm/trunk/src/compat.c

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Revision 5135 - (show annotations)
Thu Dec 25 18:51:51 2014 UTC (5 years, 5 months ago) by michael
File MIME type: text/x-chdr
File size: 4007 byte(s)
- propset svn:eol-style native

1 /*
2 Copyright (C) 2002 Andy Smith
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the
16
17 Free Software Foundation, Inc.
18 59 Temple Place - Suite 330
19 Boston, MA 02111-1307, USA
20 */
21
22 #include "setup.h"
23
24 #include <stdio.h>
25
26 #ifdef STDC_HEADERS
27 # include <string.h>
28 #endif
29
30 #ifndef HAVE_INET_ATON
31 # include <netinet/in.h>
32 #endif
33
34 #include "compat.h"
35
36 #ifndef HAVE_INET_ATON
37 int bopm_inet_aton(const char *cp, struct in_addr *inp)
38 {
39 unsigned int a1, a2, a3, a4;
40 unsigned long ret;
41
42 if (strcmp(cp, "255.255.255.255") == 0)
43 {
44 inp->s_addr = (unsigned) -1;
45 return 0;
46 }
47
48 if (sscanf(cp, "%u.%u.%u.%u", &a1, &a2, &a3, &a4) != 4 ||
49 a1 > 255 || a2 > 255 || a3 > 255 || a4 > 255)
50 {
51 return 0;
52 }
53
54 ret = (a1 << 24) | (a2 << 16) | (a3 << 8) | a4;
55
56 inp->s_addr = htonl(ret);
57
58 if (inp->s_addr == (unsigned) -1)
59 {
60 return 0;
61 }
62 return 1;
63 }
64 #endif
65
66 /*
67 * strlcat and strlcpy were ripped from openssh 2.5.1p2
68 * They had the following Copyright info:
69 *
70 *
71 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
72 * All rights reserved.
73 *
74 * Redistribution and use in source and binary forms, with or without
75 * modification, are permitted provided that the following conditions
76 * are met:
77 * 1. Redistributions of source code must retain the above copyright
78 * notice, this list of conditions and the following disclaimer.
79 * 2. Redistributions in binary form must reproduce the above copyright
80 * notice, this list of conditions and the following disclaimer in the
81 * documentation and/or other materials provided with the distribution.
82 * 3. The name of the author may not be used to endorse or promote products
83 * derived from this software without specific prior written permission.
84 *
85 * THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
86 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
87 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
88 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
89 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
90 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
91 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
92 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
93 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
94 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
95 */
96
97 #ifndef HAVE_STRLCAT
98 size_t
99 strlcat(char *dst, const char *src, size_t siz)
100 {
101 char *d = dst;
102 const char *s = src;
103 size_t n = siz, dlen;
104
105 while (n-- != 0 && *d != '\0')
106 d++;
107
108 dlen = d - dst;
109 n = siz - dlen;
110
111 if (n == 0)
112 return dlen + strlen(s);
113
114 while (*s != '\0')
115 {
116 if (n != 1)
117 {
118 *d++ = *s;
119 n--;
120 }
121
122 s++;
123 }
124
125 *d = '\0';
126 return dlen + (s - src); /* count does not include NUL */
127 }
128 #endif
129
130 #ifndef HAVE_STRLCPY
131 size_t
132 strlcpy(char *dst, const char *src, size_t siz)
133 {
134 char *d = dst;
135 const char *s = src;
136 size_t n = siz;
137
138 /* Copy as many bytes as will fit */
139 if (n != 0 && --n != 0)
140 {
141 do
142 {
143 if ((*d++ = *s++) == 0)
144 break;
145 } while (--n != 0);
146 }
147
148 /* Not enough room in dst, add NUL and traverse rest of src */
149 if (n == 0)
150 {
151 if (siz != 0)
152 *d = '\0'; /* NUL-terminate dst */
153 while (*s++)
154 ;
155 }
156
157 return s - src - 1; /* count does not include NUL */
158 }
159 #endif

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