2 * Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
22 #include <openssl/err.h>
23 #include <openssl/ssl.h>
25 #define CERT_FILE "server.pem"
29 void interrupt(int sig)
39 * Catch at most once, and don't restart the accept system call.
41 sa.sa_flags = SA_RESETHAND;
42 sa.sa_handler = interrupt;
43 sigemptyset(&sa.sa_mask);
44 sigaction(SIGINT, &sa, NULL);
47 int main(int argc, char *argv[])
61 ctx = SSL_CTX_new(TLS_server_method());
62 if (!SSL_CTX_use_certificate_chain_file(ctx, CERT_FILE))
64 if (!SSL_CTX_use_PrivateKey_file(ctx, CERT_FILE, SSL_FILETYPE_PEM))
66 if (!SSL_CTX_check_private_key(ctx))
69 /* Setup server side SSL bio */
70 ssl_bio = BIO_new_ssl(ctx, 0);
72 if ((in = BIO_new_accept(port)) == NULL)
76 * This means that when a new connection is accepted on 'in', The ssl_bio
77 * will be 'duplicated' and have the new socket BIO push into it.
78 * Basically it means the SSL BIO will be automatically setup
80 BIO_set_accept_bios(in, ssl_bio);
82 /* Arrange to leave server loop on interrupt */
87 * The first call will setup the accept socket, and the second will get a
88 * socket. In this loop, the first actual accept will occur in the
89 * BIO_read() function.
92 if (BIO_do_accept(in) <= 0)
96 i = BIO_read(in, buf, 512);
99 * If we have finished, remove the underlying BIO stack so the
100 * next time we call any function for this BIO, it will attempt
110 fwrite(buf, 1, i, stdout);
117 ERR_print_errors_fp(stderr);