123 lines
2.5 KiB
C
123 lines
2.5 KiB
C
#include <openssl/err.h>
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#include <openssl/ssl.h>
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int main(int argc, char **argv)
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{
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BIO *sbio = NULL, *out = NULL;
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int len;
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char tmpbuf[1024];
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SSL_CTX *ctx;
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SSL_CONF_CTX *cctx;
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SSL *ssl;
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char **args = argv + 1;
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const char *connect_str = "localhost:4433";
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int nargs = argc - 1;
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ERR_load_crypto_strings();
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ERR_load_SSL_strings();
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SSL_library_init();
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ctx = SSL_CTX_new(SSLv23_client_method());
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cctx = SSL_CONF_CTX_new();
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SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
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SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
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while(*args && **args == '-')
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{
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int rv;
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/* Parse standard arguments */
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rv = SSL_CONF_cmd_argv(cctx, &nargs, &args);
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if (rv == -3)
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{
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fprintf(stderr, "Missing argument for %s\n", *args);
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goto end;
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}
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if (rv < 0)
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{
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fprintf(stderr, "Error in command %s\n", *args);
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ERR_print_errors_fp(stderr);
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goto end;
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}
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/* If rv > 0 we processed something so proceed to next arg */
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if (rv > 0)
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continue;
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/* Otherwise application specific argument processing */
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if (!strcmp(*args, "-connect"))
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{
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connect_str = args[1];
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if (connect_str == NULL)
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{
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fprintf(stderr, "Missing -connect argument\n");
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goto end;
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}
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args += 2;
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nargs -= 2;
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continue;
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}
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else
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{
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fprintf(stderr, "Unknown argument %s\n", *args);
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goto end;
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}
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}
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if (!SSL_CONF_CTX_finish(cctx))
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{
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fprintf(stderr, "Finish error\n");
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ERR_print_errors_fp(stderr);
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goto err;
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}
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/* We'd normally set some stuff like the verify paths and
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* mode here because as things stand this will connect to
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* any server whose certificate is signed by any CA.
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*/
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sbio = BIO_new_ssl_connect(ctx);
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BIO_get_ssl(sbio, &ssl);
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if(!ssl)
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{
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fprintf(stderr, "Can't locate SSL pointer\n");
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goto end;
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}
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/* Don't want any retries */
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SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY);
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/* We might want to do other things with ssl here */
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BIO_set_conn_hostname(sbio, connect_str);
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out = BIO_new_fp(stdout, BIO_NOCLOSE);
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if(BIO_do_connect(sbio) <= 0)
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{
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fprintf(stderr, "Error connecting to server\n");
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ERR_print_errors_fp(stderr);
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goto end;
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}
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if(BIO_do_handshake(sbio) <= 0)
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{
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fprintf(stderr, "Error establishing SSL connection\n");
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ERR_print_errors_fp(stderr);
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goto end;
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}
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/* Could examine ssl here to get connection info */
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BIO_puts(sbio, "GET / HTTP/1.0\n\n");
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for(;;)
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{
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len = BIO_read(sbio, tmpbuf, 1024);
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if(len <= 0) break;
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BIO_write(out, tmpbuf, len);
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}
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end:
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SSL_CONF_CTX_free(cctx);
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BIO_free_all(sbio);
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BIO_free(out);
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return 0;
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}
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