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/* NOCW */
/* demos/bio/saccept.c */
/*-
* A minimal program to server an SSL connection.
* It uses blocking.
* saccept host:port
* host is the interface IP to use. If any interface, use *:port
* The default it *:4433
*
* cc -I../../include saccept.c -L../.. -lssl -lcrypto
*/
#include <stdio.h>
#include <signal.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#define CERT_FILE "server.pem"
BIO *in = NULL;
void close_up()
{
if (in != NULL)
BIO_free(in);
}
int main(argc, argv)
int argc;
char *argv[];
{
char *port = NULL;
BIO *ssl_bio, *tmp;
SSL_CTX *ctx;
SSL *ssl;
char buf[512];
int ret = 1, i;
if (argc <= 1)
port = "*:4433";
else
port = argv[1];
signal(SIGINT, close_up);
SSL_load_error_strings();
#ifdef WATT32
dbug_init();
sock_init();
#endif
/* Add ciphers and message digests */
OpenSSL_add_ssl_algorithms();
ctx = SSL_CTX_new(SSLv23_server_method());
if (!SSL_CTX_use_certificate_file(ctx, CERT_FILE, SSL_FILETYPE_PEM))
goto err;
if (!SSL_CTX_use_PrivateKey_file(ctx, CERT_FILE, SSL_FILETYPE_PEM))
goto err;
if (!SSL_CTX_check_private_key(ctx))
goto err;
/* Setup server side SSL bio */
ssl = SSL_new(ctx);
ssl_bio = BIO_new_ssl(ctx, 0);
if ((in = BIO_new_accept(port)) == NULL)
goto err;
/*
* This means that when a new connection is acceptede on 'in', The
* ssl_bio will be 'dupilcated' and have the new socket BIO push into it.
* Basically it means the SSL BIO will be automatically setup
*/
BIO_set_accept_bios(in, ssl_bio);
again:
/*
* The first call will setup the accept socket, and the second will get a
* socket. In this loop, the first actual accept will occur in the
* BIO_read() function.
*/
if (BIO_do_accept(in) <= 0)
goto err;
for (;;) {
i = BIO_read(in, buf, 512);
if (i == 0) {
/*
* If we have finished, remove the underlying BIO stack so the
* next time we call any function for this BIO, it will attempt
* to do an accept
*/
printf("Done\n");
tmp = BIO_pop(in);
BIO_free_all(tmp);
goto again;
}
if (i < 0)
goto err;
fwrite(buf, 1, i, stdout);
fflush(stdout);
}
ret = 0;
err:
if (ret) {
ERR_print_errors_fp(stderr);
}
if (in != NULL)
BIO_free(in);
exit(ret);
return (!ret);
}
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