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