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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();
/* Add ciphers and message digests */
SSLeay_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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