1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 2000 Kungliga Tekniska H��gskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
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 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <config.h>
37
38#include <krb5/roken.h>
39
40/* getaddrinfo via string specifying host and port */
41
42ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
43roken_getaddrinfo_hostspec2(const char *hostspec,
44			    int socktype,
45			    int port,
46			    struct addrinfo **ai)
47{
48    const char *p;
49    char portstr[NI_MAXSERV];
50    char host[MAXHOSTNAMELEN];
51    struct addrinfo hints;
52    int hostspec_len;
53
54    struct hst {
55	const char *prefix;
56	int socktype;
57	int protocol;
58	int port;
59    } *hstp, hst[] = {
60	{ "http://", SOCK_STREAM, IPPROTO_TCP, 80 },
61	{ "http/", SOCK_STREAM, IPPROTO_TCP, 80 },
62	{ "tcp/", SOCK_STREAM, IPPROTO_TCP },
63	{ "udp/", SOCK_DGRAM, IPPROTO_UDP },
64	{ NULL }
65    };
66
67    memset(&hints, 0, sizeof(hints));
68
69    hints.ai_socktype = socktype;
70
71    for(hstp = hst; hstp->prefix; hstp++) {
72	if(strncmp(hostspec, hstp->prefix, strlen(hstp->prefix)) == 0) {
73	    hints.ai_socktype = hstp->socktype;
74	    hints.ai_protocol = hstp->protocol;
75	    if(port == 0)
76		port = hstp->port;
77	    hostspec += strlen(hstp->prefix);
78	    break;
79	}
80    }
81
82    p = strchr (hostspec, ':');
83    if (p != NULL) {
84	char *end;
85
86	port = strtol (p + 1, &end, 0);
87	hostspec_len = p - hostspec;
88    } else {
89	hostspec_len = strlen(hostspec);
90    }
91    snprintf (portstr, sizeof(portstr), "%u", port);
92
93    snprintf (host, sizeof(host), "%.*s", hostspec_len, hostspec);
94    return getaddrinfo (host, portstr, &hints, ai);
95}
96
97ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
98roken_getaddrinfo_hostspec(const char *hostspec,
99			   int port,
100			   struct addrinfo **ai)
101{
102    return roken_getaddrinfo_hostspec2(hostspec, 0, port, ai);
103}
104