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 #ifdef HAVE_CONFIG_H 35 #include <config.h> 36 RCSID("$Id: getaddrinfo_hostspec.c,v 1.1 2000/02/07 13:38:22 joda Exp $"); 37 #endif 38 39 #include "roken.h" 40 41 /* getaddrinfo via string specifying host and port */ 42 43 int 44 roken_getaddrinfo_hostspec(const char *hostspec, 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 53 struct hst { 54 const char *prefix; 55 int socktype; 56 int protocol; 57 int port; 58 } *hstp, hst[] = { 59 { "http://", SOCK_STREAM, IPPROTO_TCP, 80 }, 60 { "http/", SOCK_STREAM, IPPROTO_TCP, 80 }, 61 { "tcp/", SOCK_STREAM, IPPROTO_TCP }, 62 { "udp/", SOCK_DGRAM, IPPROTO_UDP }, 63 { NULL } 64 }; 65 66 memset(&hints, 0, sizeof(hints)); 67 68 for(hstp = hst; hstp->prefix; hstp++) { 69 if(strncmp(hostspec, hstp->prefix, strlen(hstp->prefix)) == 0) { 70 hints.ai_socktype = hstp->socktype; 71 hints.ai_protocol = hstp->protocol; 72 if(port == 0) 73 port = hstp->port; 74 hostspec += strlen(hstp->prefix); 75 break; 76 } 77 } 78 79 p = strchr (hostspec, ':'); 80 if (p != NULL) { 81 char *end; 82 83 port = strtol (p + 1, &end, 0); 84 } 85 snprintf (portstr, sizeof(portstr), "%u", port); 86 87 snprintf (host, sizeof(host), "%.*s", p - hostspec, hostspec); 88 return getaddrinfo (host, portstr, &hints, ai); 89 } 90