1#include <openssl/err.h> 2#include <openssl/ssl.h> 3 4int main(int argc, char **argv) 5{ 6 BIO *sbio = NULL, *out = NULL; 7 int len; 8 char tmpbuf[1024]; 9 SSL_CTX *ctx; 10 SSL_CONF_CTX *cctx; 11 SSL *ssl; 12 char **args = argv + 1; 13 const char *connect_str = "localhost:4433"; 14 int nargs = argc - 1; 15 16 ERR_load_crypto_strings(); 17 ERR_load_SSL_strings(); 18 SSL_library_init(); 19 20 ctx = SSL_CTX_new(SSLv23_client_method()); 21 cctx = SSL_CONF_CTX_new(); 22 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT); 23 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx); 24 while (*args && **args == '-') { 25 int rv; 26 /* Parse standard arguments */ 27 rv = SSL_CONF_cmd_argv(cctx, &nargs, &args); 28 if (rv == -3) { 29 fprintf(stderr, "Missing argument for %s\n", *args); 30 goto end; 31 } 32 if (rv < 0) { 33 fprintf(stderr, "Error in command %s\n", *args); 34 ERR_print_errors_fp(stderr); 35 goto end; 36 } 37 /* If rv > 0 we processed something so proceed to next arg */ 38 if (rv > 0) 39 continue; 40 /* Otherwise application specific argument processing */ 41 if (!strcmp(*args, "-connect")) { 42 connect_str = args[1]; 43 if (connect_str == NULL) { 44 fprintf(stderr, "Missing -connect argument\n"); 45 goto end; 46 } 47 args += 2; 48 nargs -= 2; 49 continue; 50 } else { 51 fprintf(stderr, "Unknown argument %s\n", *args); 52 goto end; 53 } 54 } 55 56 if (!SSL_CONF_CTX_finish(cctx)) { 57 fprintf(stderr, "Finish error\n"); 58 ERR_print_errors_fp(stderr); 59 goto err; 60 } 61 62 /* 63 * We'd normally set some stuff like the verify paths and * mode here 64 * because as things stand this will connect to * any server whose 65 * certificate is signed by any CA. 66 */ 67 68 sbio = BIO_new_ssl_connect(ctx); 69 70 BIO_get_ssl(sbio, &ssl); 71 72 if (!ssl) { 73 fprintf(stderr, "Can't locate SSL pointer\n"); 74 goto end; 75 } 76 77 /* Don't want any retries */ 78 SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY); 79 80 /* We might want to do other things with ssl here */ 81 82 BIO_set_conn_hostname(sbio, connect_str); 83 84 out = BIO_new_fp(stdout, BIO_NOCLOSE); 85 if (BIO_do_connect(sbio) <= 0) { 86 fprintf(stderr, "Error connecting to server\n"); 87 ERR_print_errors_fp(stderr); 88 goto end; 89 } 90 91 if (BIO_do_handshake(sbio) <= 0) { 92 fprintf(stderr, "Error establishing SSL connection\n"); 93 ERR_print_errors_fp(stderr); 94 goto end; 95 } 96 97 /* Could examine ssl here to get connection info */ 98 99 BIO_puts(sbio, "GET / HTTP/1.0\n\n"); 100 for (;;) { 101 len = BIO_read(sbio, tmpbuf, 1024); 102 if (len <= 0) 103 break; 104 BIO_write(out, tmpbuf, len); 105 } 106 end: 107 SSL_CONF_CTX_free(cctx); 108 BIO_free_all(sbio); 109 BIO_free(out); 110 return 0; 111} 112