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09ff84bd27
The demo code is quite often block copied for new demos, so this PR changes demos to use EXIT_SUCCESS & EXIT_FAILURE instead of using 0 and 1. Internal functions use the normal notation of 0 = error, 1 = success, but the value returned by main() must use EXIT_SUCCESS and EXIT_FAILURE. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/20545)
111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*
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* Copyright 2013-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <string.h>
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#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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int ret = EXIT_FAILURE;
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ctx = SSL_CTX_new(TLS_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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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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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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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") == 0) {
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connect_str = args[1];
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if (connect_str == NULL) {
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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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} else {
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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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fprintf(stderr, "Finish error\n");
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ERR_print_errors_fp(stderr);
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goto end;
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}
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/*
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* We'd normally set some stuff like the verify paths and * mode here
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* because as things stand this will connect to * any server whose
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* 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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fprintf(stderr, "Can't locate SSL pointer\n");
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goto end;
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}
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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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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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/* 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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len = BIO_read(sbio, tmpbuf, 1024);
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if (len <= 0)
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break;
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BIO_write(out, tmpbuf, len);
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}
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ret = EXIT_SUCCESS;
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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 ret;
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}
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