1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22#include <stdio.h> 23 24#include <curl/curl.h> 25#include <curl/types.h> 26#include <curl/easy.h> 27 28 29/* some requirements for this to work: 30 1. set pCertFile to the file with the client certificate 31 2. if the key is passphrase protected, set pPassphrase to the 32 passphrase you use 33 3. if you are using a crypto engine: 34 3.1. set a #define USE_ENGINE 35 3.2. set pEngine to the name of the crypto engine you use 36 3.3. set pKeyName to the key identifier you want to use 37 4. if you don't use a crypto engine: 38 4.1. set pKeyName to the file name of your client key 39 4.2. if the format of the key file is DER, set pKeyType to "DER" 40 41 !! verify of the server certificate is not implemented here !! 42 43 **** This example only works with libcurl 7.9.3 and later! **** 44 45*/ 46 47int main(void) 48{ 49 CURL *curl; 50 CURLcode res; 51 FILE *headerfile; 52 const char *pPassphrase = NULL; 53 54 static const char *pCertFile = "testcert.pem"; 55 static const char *pCACertFile="cacert.pem"; 56 57 const char *pKeyName; 58 const char *pKeyType; 59 60 const char *pEngine; 61 62#ifdef USE_ENGINE 63 pKeyName = "rsa_test"; 64 pKeyType = "ENG"; 65 pEngine = "chil"; /* for nChiper HSM... */ 66#else 67 pKeyName = "testkey.pem"; 68 pKeyType = "PEM"; 69 pEngine = NULL; 70#endif 71 72 headerfile = fopen("dumpit", "w"); 73 74 curl_global_init(CURL_GLOBAL_DEFAULT); 75 76 curl = curl_easy_init(); 77 if(curl) { 78 /* what call to write: */ 79 curl_easy_setopt(curl, CURLOPT_URL, "HTTPS://your.favourite.ssl.site"); 80 curl_easy_setopt(curl, CURLOPT_WRITEHEADER, headerfile); 81 82 while(1) /* do some ugly short cut... */ 83 { 84 if (pEngine) /* use crypto engine */ 85 { 86 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE,pEngine) != CURLE_OK) 87 { /* load the crypto engine */ 88 fprintf(stderr,"can't set crypto engine\n"); 89 break; 90 } 91 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT,1L) != CURLE_OK) 92 { /* set the crypto engine as default */ 93 /* only needed for the first time you load 94 a engine in a curl object... */ 95 fprintf(stderr,"can't set crypto engine as default\n"); 96 break; 97 } 98 } 99 /* cert is stored PEM coded in file... */ 100 /* since PEM is default, we needn't set it for PEM */ 101 curl_easy_setopt(curl,CURLOPT_SSLCERTTYPE,"PEM"); 102 103 /* set the cert for client authentication */ 104 curl_easy_setopt(curl,CURLOPT_SSLCERT,pCertFile); 105 106 /* sorry, for engine we must set the passphrase 107 (if the key has one...) */ 108 if (pPassphrase) 109 curl_easy_setopt(curl,CURLOPT_KEYPASSWD,pPassphrase); 110 111 /* if we use a key stored in a crypto engine, 112 we must set the key type to "ENG" */ 113 curl_easy_setopt(curl,CURLOPT_SSLKEYTYPE,pKeyType); 114 115 /* set the private key (file or ID in engine) */ 116 curl_easy_setopt(curl,CURLOPT_SSLKEY,pKeyName); 117 118 /* set the file with the certs vaildating the server */ 119 curl_easy_setopt(curl,CURLOPT_CAINFO,pCACertFile); 120 121 /* disconnect if we can't validate server's cert */ 122 curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER,1L); 123 124 res = curl_easy_perform(curl); 125 break; /* we are done... */ 126 } 127 /* always cleanup */ 128 curl_easy_cleanup(curl); 129 } 130 131 curl_global_cleanup(); 132 133 return 0; 134} 135