1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
/* $OpenBSD: tls_util.c,v 1.1 2014/10/31 13:46:17 jsing Exp $ */
/*
* Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include "tls_internal.h"
/*
* Extract the host and port from a colon separated value. For a literal IPv6
* address the address must be contained with square braces. If a host and
* port are successfully extracted, the function will return 0 and the
* caller is responsible for freeing the host and port. If no port is found
* then the function will return 1, with both host and port being NULL.
* On memory allocation failure -1 will be returned.
*/
int
tls_host_port(const char *hostport, char **host, char **port)
{
char *h, *p, *s;
int rv = 1;
*host = NULL;
*port = NULL;
if ((s = strdup(hostport)) == NULL)
goto fail;
h = p = s;
/* See if this is an IPv6 literal with square braces. */
if (p[0] == '[') {
h++;
if ((p = strchr(s, ']')) == NULL)
goto done;
*p++ = '\0';
}
/* Find the port seperator. */
if ((p = strchr(p, ':')) == NULL)
goto done;
/* If there is another separator then we have issues. */
if (strchr(p + 1, ':') != NULL)
goto done;
*p++ = '\0';
if (asprintf(host, "%s", h) == -1)
goto fail;
if (asprintf(port, "%s", p) == -1)
goto fail;
rv = 0;
goto done;
fail:
free(*host);
*host = NULL;
free(*port);
*port = NULL;
rv = -1;
done:
free(s);
return (rv);
}
|
