1/*
2 * Copyright (c) 2000 Kungliga Tekniska H��gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
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 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <config.h>
35
36#include "roken.h"
37
38/* getaddrinfo via string specifying host and port */
39
40ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
41roken_getaddrinfo_hostspec2(const char *hostspec,
42			    int socktype,
43			    int port,
44			    struct addrinfo **ai)
45{
46    const char *p;
47    char portstr[NI_MAXSERV];
48    char host[MAXHOSTNAMELEN];
49    struct addrinfo hints;
50    int hostspec_len;
51
52    struct hst {
53	const char *prefix;
54	int socktype;
55	int protocol;
56	int port;
57    } *hstp, hst[] = {
58	{ "http://", SOCK_STREAM, IPPROTO_TCP, 80 },
59	{ "http/", SOCK_STREAM, IPPROTO_TCP, 80 },
60	{ "tcp/", SOCK_STREAM, IPPROTO_TCP, 0 },
61	{ "udp/", SOCK_DGRAM, IPPROTO_UDP, 0 },
62	{ NULL, 0, 0, 0 }
63    };
64
65    memset(&hints, 0, sizeof(hints));
66
67    hints.ai_socktype = socktype;
68
69    for(hstp = hst; hstp->prefix; hstp++) {
70	if(strncmp(hostspec, hstp->prefix, strlen(hstp->prefix)) == 0) {
71	    hints.ai_socktype = hstp->socktype;
72	    hints.ai_protocol = hstp->protocol;
73	    if(port == 0)
74		port = hstp->port;
75	    hostspec += strlen(hstp->prefix);
76	    break;
77	}
78    }
79
80    p = strchr (hostspec, ':');
81    if (p != NULL) {
82	char *end;
83
84	port = strtol (p + 1, &end, 0);
85	hostspec_len = p - hostspec;
86    } else {
87	hostspec_len = strlen(hostspec);
88    }
89    snprintf (portstr, sizeof(portstr), "%u", port);
90
91    snprintf (host, sizeof(host), "%.*s", hostspec_len, hostspec);
92    return getaddrinfo (host, portstr, &hints, ai);
93}
94
95ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
96roken_getaddrinfo_hostspec(const char *hostspec,
97			   int port,
98			   struct addrinfo **ai)
99{
100    return roken_getaddrinfo_hostspec2(hostspec, 0, port, ai);
101}
102