1 /* 2 * Copyright (c) 2000 Kungliga Tekniska Högskolan 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 40 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL 41 roken_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 95 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL 96 roken_getaddrinfo_hostspec(const char *hostspec, 97 int port, 98 struct addrinfo **ai) 99 { 100 return roken_getaddrinfo_hostspec2(hostspec, 0, port, ai); 101 } 102