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本帖最后由 seamine_cu 于 2012-11-14 17:57 编辑
去看看curl官方的例子http://curl.haxx.se/libcurl/c/cacertinmem.html
我把他的改了,改成从cacert.pem加载多个根证书列表,cacert.pem是根据http://curl.haxx.se/docs/caextract.html的方法下载或自己生成的- /***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
- /* Example using a "in core" PEM certificate to retrieve a https page.
- * Written by Theo Borm
- */
- /* on a netBSD system with OPENSSL& LIBCURL installed from
- * pkgsrc (using default paths) this program can be compiled using:
- * gcc -I/usr/pkg/include -L/usr/pkg/lib -lcurl -Wl,-R/usr/pkg/lib -lssl
- * -lcrypto -lz -o curlcacerttest curlcacerttest.c
- * on other operating systems you may want to change paths to headers
- * and libraries
- */
- #include <openssl/ssl.h>
- #include <curl/curl.h>
- #include <stdio.h>
- #include <string>
- #include <iostream>
- #include <fstream>
- #include <list>
- size_t writefunction( void *ptr, size_t size, size_t nmemb, void *stream)
- {
- fwrite(ptr,size,nmemb,(FILE*)stream);
- return(nmemb*size);
- }
- static CURLcode sslctx2_function(CURL * curl, void * sslctx, void * parm)
- {
- char pem[65536] = {0};
- X509_STORE * store;
- X509 * cert=NULL;
- BIO * bio = NULL;
- std::fstream fs("D:\\cacert.pem");
- std::string cert_text;
- bool is_cert_begin = false;
- std::list<std::string> certs;
- const char cert_begin_text[] = "-----BEGIN CERTIFICATE-----";
- const char cert_end_text[] = "-----END CERTIFICATE-----";
- while (!fs.eof()) {
- memset(pem, 0, sizeof(pem));
- fs.getline(pem, sizeof(pem)-1);
- // ignore comment
- if (strncmp(pem, "#", 1) == 0) {
- continue;
- }
- if (strncmp(pem, cert_begin_text, sizeof(cert_begin_text)) == 0) {
- cert_text.clear();
- cert_text.append(pem);
- cert_text.append("\n");
- is_cert_begin = true;
- continue;
- }
- if (strncmp(pem, cert_end_text, sizeof(cert_end_text)) == 0) {
- cert_text.append(pem);
- cert_text.append("\n");
- certs.push_back(cert_text);
- cert_text.clear();
- is_cert_begin = false;
- continue;
- }
- if (is_cert_begin) {
- cert_text.append(pem);
- cert_text.append("\n");
- }
- }
- std::list<std::string>::iterator it = certs.begin();
- while (it != certs.end()) {
- bio=BIO_new_mem_buf((void*)(it->c_str()), -1);
- /* use it to read the PEM formatted certificate from memory into an X509
- * structure that SSL can use
- */
- X509* px509 = PEM_read_bio_X509(bio, &cert, 0, NULL);
- if (cert == NULL) {
- printf("PEM_read_bio_X509 failed...\n");
- }
- /* get a pointer to the X509 certificate store (which may be empty!) */
- store=SSL_CTX_get_cert_store((SSL_CTX *)sslctx);
- /* add our certificate to this store */
- int ret = X509_STORE_add_cert(store, cert);
- if (ret == 0) {
- printf("error adding certificate\n");
- }
- X509_free(cert);
- cert = NULL;
- BIO_free(bio);
- bio = NULL;
- // next certificate
- ++it;
- }
- /* all set to go */
- return CURLE_OK ;
- }
- static CURLcode sslctx_function(CURL * curl, void * sslctx, void * parm)
- {
- X509_STORE * store;
- X509 * cert=NULL;
- BIO * bio;
- char * mypem = // www.cacert.org
- "-----BEGIN CERTIFICATE-----\n"\
- "MIIHPTCCBSWgAwIBAgIBADANBgkqhkiG9w0BAQQFADB5MRAwDgYDVQQKEwdSb290\n"\
- "IENBMR4wHAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNB\n"\
- "IENlcnQgU2lnbmluZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRA\n"\
- "Y2FjZXJ0Lm9yZzAeFw0wMzAzMzAxMjI5NDlaFw0zMzAzMjkxMjI5NDlaMHkxEDAO\n"\
- "BgNVBAoTB1Jvb3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93d3cuY2FjZXJ0Lm9yZzEi\n"\
- "MCAGA1UEAxMZQ0EgQ2VydCBTaWduaW5nIEF1dGhvcml0eTEhMB8GCSqGSIb3DQEJ\n"\
- "ARYSc3VwcG9ydEBjYWNlcnQub3JnMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIIC\n"\
- "CgKCAgEAziLA4kZ97DYoB1CW8qAzQIxL8TtmPzHlawI229Z89vGIj053NgVBlfkJ\n"\
- "8BLPRoZzYLdufujAWGSuzbCtRRcMY/pnCujW0r8+55jE8Ez64AO7NV1sId6eINm6\n"\
- "zWYyN3L69wj1x81YyY7nDl7qPv4coRQKFWyGhFtkZip6qUtTefWIonvuLwphK42y\n"\
- "fk1WpRPs6tqSnqxEQR5YYGUFZvjARL3LlPdCfgv3ZWiYUQXw8wWRBB0bF4LsyFe7\n"\
- "w2t6iPGwcswlWyCR7BYCEo8y6RcYSNDHBS4CMEK4JZwFaz+qOqfrU0j36NK2B5jc\n"\
- "G8Y0f3/JHIJ6BVgrCFvzOKKrF11myZjXnhCLotLddJr3cQxyYN/Nb5gznZY0dj4k\n"\
- "epKwDpUeb+agRThHqtdB7Uq3EvbXG4OKDy7YCbZZ16oE/9KTfWgu3YtLq1i6L43q\n"\
- "laegw1SJpfvbi1EinbLDvhG+LJGGi5Z4rSDTii8aP8bQUWWHIbEZAWV/RRyH9XzQ\n"\
- "QUxPKZgh/TMfdQwEUfoZd9vUFBzugcMd9Zi3aQaRIt0AUMyBMawSB3s42mhb5ivU\n"\
- "fslfrejrckzzAeVLIL+aplfKkQABi6F1ITe1Yw1nPkZPcCBnzsXWWdsC4PDSy826\n"\
- "YreQQejdIOQpvGQpQsgi3Hia/0PsmBsJUUtaWsJx8cTLc6nloQsCAwEAAaOCAc4w\n"\
- "ggHKMB0GA1UdDgQWBBQWtTIb1Mfz4OaO873SsDrusjkY0TCBowYDVR0jBIGbMIGY\n"\
- "gBQWtTIb1Mfz4OaO873SsDrusjkY0aF9pHsweTEQMA4GA1UEChMHUm9vdCBDQTEe\n"\
- "MBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0\n"\
- "IFNpZ25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2Vy\n"\
- "dC5vcmeCAQAwDwYDVR0TAQH/BAUwAwEB/zAyBgNVHR8EKzApMCegJaAjhiFodHRw\n"\
- "czovL3d3dy5jYWNlcnQub3JnL3Jldm9rZS5jcmwwMAYJYIZIAYb4QgEEBCMWIWh0\n"\
- "dHBzOi8vd3d3LmNhY2VydC5vcmcvcmV2b2tlLmNybDA0BglghkgBhvhCAQgEJxYl\n"\
- "aHR0cDovL3d3dy5jYWNlcnQub3JnL2luZGV4LnBocD9pZD0xMDBWBglghkgBhvhC\n"\
- "AQ0ESRZHVG8gZ2V0IHlvdXIgb3duIGNlcnRpZmljYXRlIGZvciBGUkVFIGhlYWQg\n"\
- "b3ZlciB0byBodHRwOi8vd3d3LmNhY2VydC5vcmcwDQYJKoZIhvcNAQEEBQADggIB\n"\
- "ACjH7pyCArpcgBLKNQodgW+JapnM8mgPf6fhjViVPr3yBsOQWqy1YPaZQwGjiHCc\n"\
- "nWKdpIevZ1gNMDY75q1I08t0AoZxPuIrA2jxNGJARjtT6ij0rPtmlVOKTV39O9lg\n"\
- "18p5aTuxZZKmxoGCXJzN600BiqXfEVWqFcofN8CCmHBh22p8lqOOLlQ+TyGpkO/c\n"\
- "gr/c6EWtTZBzCDyUZbAEmXZ/4rzCahWqlwQ3JNgelE5tDlG+1sSPypZt90Pf6DBl\n"\
- "Jzt7u0NDY8RD97LsaMzhGY4i+5jhe1o+ATc7iwiwovOVThrLm82asduycPAtStvY\n"\
- "sONvRUgzEv/+PDIqVPfE94rwiCPCR/5kenHA0R6mY7AHfqQv0wGP3J8rtsYIqQ+T\n"\
- "SCX8Ev2fQtzzxD72V7DX3WnRBnc0CkvSyqD/HMaMyRa+xMwyN2hzXwj7UfdJUzYF\n"\
- "CpUCTPJ5GhD22Dp1nPMd8aINcGeGG7MW9S/lpOt5hvk9C8JzC6WZrG/8Z7jlLwum\n"\
- "GCSNe9FINSkYQKyTYOGWhlC0elnYjyELn8+CkcY7v2vcB5G5l1YjqrZslMZIBjzk\n"\
- "zk6q5PYvCdxTby78dOs6Y5nCpqyJvKeyRKANihDjbPIky/qbn3BHLt4Ui9SyIAmW\n"\
- "omTxJBzcoTWcFbLUvFUufQb1nA5V9FrWk9p2rSVzTMVD\n"\
- "-----END CERTIFICATE-----\n";
- /* get a BIO */
- bio=BIO_new_mem_buf(mypem, -1);
- /* use it to read the PEM formatted certificate from memory into an X509
- * structure that SSL can use
- */
- PEM_read_bio_X509(bio, &cert, 0, NULL);
- if (cert == NULL)
- printf("PEM_read_bio_X509 failed...\n");
- /* get a pointer to the X509 certificate store (which may be empty!) */
- store=SSL_CTX_get_cert_store((SSL_CTX *)sslctx);
- /* add our certificate to this store */
- if (X509_STORE_add_cert(store, cert)==0)
- printf("error adding certificate\n");
- /* all set to go */
- return CURLE_OK ;
- }
- int main(void)
- {
- CURL * ch;
- CURLcode rv;
- rv=curl_global_init(CURL_GLOBAL_ALL);
- ch=curl_easy_init();
- rv=curl_easy_setopt(ch,CURLOPT_VERBOSE, 0L);
- rv=curl_easy_setopt(ch,CURLOPT_HEADER, 0L);
- rv=curl_easy_setopt(ch,CURLOPT_NOPROGRESS, 1L);
- rv=curl_easy_setopt(ch,CURLOPT_NOSIGNAL, 1L);
- rv=curl_easy_setopt(ch,CURLOPT_WRITEFUNCTION, *writefunction);
- rv=curl_easy_setopt(ch,CURLOPT_WRITEDATA, stdout);
- rv=curl_easy_setopt(ch,CURLOPT_HEADERFUNCTION, *writefunction);
- rv=curl_easy_setopt(ch,CURLOPT_WRITEHEADER, stderr);
- rv=curl_easy_setopt(ch,CURLOPT_SSLCERTTYPE,"PEM");
- rv=curl_easy_setopt(ch,CURLOPT_SSL_VERIFYPEER,1L);
- rv=curl_easy_setopt(ch,CURLOPT_SSL_VERIFYHOST, 2L);
- rv=curl_easy_setopt(ch,CURLOPT_URL, "https://www.dropbox.com/");
- rv=curl_easy_setopt(ch,CURLOPT_VERBOSE, 1);
- /* first try: retrieve page without cacerts' certificate -> will fail
- */
- /*
- rv=curl_easy_perform(ch);
- if (rv==CURLE_OK)
- printf("*** transfer succeeded ***\n");
- else
- printf("*** transfer failed ***\n");
- */
- /* second try: retrieve page using cacerts' certificate -> will succeed
- * load the certificate by installing a function doing the nescessary
- * "modifications" to the SSL CONTEXT just before link init
- */
- //rv = curl_easy_setopt(ch, CURLOPT_CAPATH, "d:\\");
- //rv = curl_easy_setopt(ch, CURLOPT_CAINFO, "d:\\cacert.pem");
- //rv = curl_easy_setopt(ch, CURLOPT_CERTINFO, 1L);
- rv=curl_easy_setopt(ch,CURLOPT_SSL_CTX_FUNCTION, *sslctx2_function);
- rv=curl_easy_perform(ch);
- if (rv==CURLE_OK)
- printf("*** transfer succeeded ***\n");
- else
- printf("*** transfer failed ***\n");
- curl_easy_cleanup(ch);
- curl_global_cleanup();
- return rv;
- }
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