1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <ctype.h> 30 #include <strings.h> 31 #include <stdlib.h> 32 33 #include <parseURL.h> 34 35 #define HTTP_SCHEME "http://" 36 #define HTTPS_SCHEME "https://" 37 38 /* 39 * This routine parses a hostport string and initializes an url_hport_t 40 * structure with its contents. Technically, a hostport string does not 41 * require a port component. In the case, where there is no port component 42 * in the hostport string, this routine will initialize the url_hport_t 43 * structure with the default port supplied by the caller. 44 * 45 * A host port string should be of the form -> host[:port] 46 * 47 * Returns: One of the URL parsing error return codes. 48 */ 49 int 50 url_parse_hostport(const char *hpstr, url_hport_t *hport, ushort_t def_port) 51 { 52 char *lhpstr; 53 char *ptr; 54 char *optr; 55 size_t hlen; 56 57 lhpstr = strdup(hpstr); 58 if (lhpstr == NULL) { 59 return (URL_PARSE_NOMEM); 60 } 61 62 /* 63 * Find the host/port separator. 64 */ 65 ptr = lhpstr; 66 optr = ptr; 67 ptr = strstr(optr, ":"); 68 if (ptr != NULL) { 69 *ptr = '\0'; 70 ptr++; 71 } 72 73 /* 74 * Copy in the hostname and check to see that it was a 75 * a valid size. 76 */ 77 hlen = strlcpy(hport->hostname, optr, sizeof (hport->hostname)); 78 if (hlen == 0 || hlen >= sizeof (hport->hostname)) { 79 free(lhpstr); 80 return (URL_PARSE_BAD_HOSTPORT); 81 } 82 83 /* 84 * If the hostport string does not contain a port, then use 85 * the default port provided by the caller. 86 */ 87 if (ptr == NULL || *ptr == '\0') { 88 hport->port = def_port; 89 } else { 90 hport->port = 0; 91 while (*ptr != '\0') { 92 if (!isdigit(*ptr)) { 93 free(lhpstr); 94 return (URL_PARSE_BAD_HOSTPORT); 95 } 96 hport->port *= 10; 97 hport->port += (*ptr - '0'); 98 ptr++; 99 } 100 } 101 102 free(lhpstr); 103 return (URL_PARSE_SUCCESS); 104 } 105 106 /* 107 * This routine parses an http or https URL and initializes an url_t 108 * structure with its contents. 109 * 110 * A URL string should be of the form -> http[s]://host[:port]/abspath 111 * 112 * Returns: One of the URL parsing error return codes. 113 */ 114 int 115 url_parse(const char *urlstr, url_t *url) { 116 117 char *lurlstr; 118 char *ptr; 119 char *optr; 120 size_t plen; 121 int ret; 122 123 lurlstr = strdup(urlstr); 124 if (lurlstr == NULL) { 125 return (URL_PARSE_NOMEM); 126 } 127 128 /* 129 * Determine 'http' or 'https'. 130 */ 131 ptr = lurlstr; 132 if (strncmp(ptr, HTTP_SCHEME, strlen(HTTP_SCHEME)) == 0) { 133 ptr += strlen(HTTP_SCHEME); 134 url->https = B_FALSE; 135 } else if (strncmp(ptr, HTTPS_SCHEME, strlen(HTTPS_SCHEME)) == 0) { 136 ptr += strlen(HTTPS_SCHEME); 137 url->https = B_TRUE; 138 } else { 139 free(lurlstr); 140 return (URL_PARSE_BAD_SCHEME); 141 } 142 143 /* 144 * Find the hostport/abspath separator. 145 */ 146 optr = ptr; 147 ptr = strstr(optr, "/"); 148 if (ptr != NULL) { 149 *ptr = '\0'; 150 } 151 152 /* 153 * Parse the hostport entity; supply suitable port defaults. 154 */ 155 ret = url_parse_hostport(optr, &url->hport, url->https ? 156 URL_DFLT_HTTPS_SRVR_PORT : URL_DFLT_SRVR_PORT); 157 if (ret != URL_PARSE_SUCCESS) { 158 free(lurlstr); 159 return (ret); 160 } 161 162 /* 163 * If the URL string does not contain an abspath, then supply "/" 164 * by default. 165 */ 166 if (ptr != NULL) { 167 *ptr = '/'; 168 plen = strlcpy(url->abspath, ptr, sizeof (url->abspath)); 169 if (plen >= sizeof (url->abspath)) { 170 free(lurlstr); 171 return (URL_PARSE_BAD_ABSPATH); 172 } 173 } else { 174 (void) strlcpy(url->abspath, "/", sizeof (url->abspath)); 175 } 176 177 free(lurlstr); 178 return (URL_PARSE_SUCCESS); 179 } 180