2 * Copyright 1998-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * A minimal program to serve an SSL connection.
14 * host is the interface IP to use. If any interface, use *:port
15 * The default it *:4433
17 * cc -I../../include saccept.c -L../.. -lssl -lcrypto -ldl
23 #include <openssl/err.h>
24 #include <openssl/ssl.h>
26 #define CERT_FILE "server.pem"
28 static volatile int done = 0;
30 void interrupt(int sig)
40 * Catch at most once, and don't restart the accept system call.
42 sa.sa_flags = SA_RESETHAND;
43 sa.sa_handler = interrupt;
44 sigemptyset(&sa.sa_mask);
45 sigaction(SIGINT, &sa, NULL);
48 int main(int argc, char *argv[])
55 int ret = EXIT_FAILURE, i;
62 ctx = SSL_CTX_new(TLS_server_method());
63 if (!SSL_CTX_use_certificate_chain_file(ctx, CERT_FILE))
65 if (!SSL_CTX_use_PrivateKey_file(ctx, CERT_FILE, SSL_FILETYPE_PEM))
67 if (!SSL_CTX_check_private_key(ctx))
70 /* Setup server side SSL bio */
71 ssl_bio = BIO_new_ssl(ctx, 0);
73 if ((in = BIO_new_accept(port)) == NULL)
77 * This means that when a new connection is accepted on 'in', The ssl_bio
78 * will be 'duplicated' and have the new socket BIO push into it.
79 * Basically it means the SSL BIO will be automatically setup
81 BIO_set_accept_bios(in, ssl_bio);
83 /* Arrange to leave server loop on interrupt */
88 * The first call will setup the accept socket, and the second will get a
89 * socket. In this loop, the first actual accept will occur in the
90 * BIO_read() function.
93 if (BIO_do_accept(in) <= 0)
97 i = BIO_read(in, buf, 512);
100 * If we have finished, remove the underlying BIO stack so the
101 * next time we call any function for this BIO, it will attempt
111 fwrite(buf, 1, i, stdout);
117 if (ret != EXIT_SUCCESS)
118 ERR_print_errors_fp(stderr);