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117 lines
2.5 KiB
117 lines
2.5 KiB
/* NOCW */ |
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/* demos/bio/saccept.c */ |
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/*- |
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* A minimal program to server 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 |
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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(argc, argv) |
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int argc; |
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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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SSL *ssl; |
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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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#ifdef WATT32 |
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dbug_init(); |
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sock_init(); |
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#endif |
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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 = SSL_new(ctx); |
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ssl_bio = BIO_new_ssl(ctx, 0); |
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if ((in = BIO_new_accept(port)) == NULL) |
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goto err; |
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/* |
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* This means that when a new connection is acceptede on 'in', The |
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* ssl_bio will be 'dupilcated' and have the new socket BIO push into it. |
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* Basically it means the SSL BIO will be automatically setup |
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*/ |
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BIO_set_accept_bios(in, ssl_bio); |
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again: |
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/* |
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* The first call will setup the accept socket, and the second will get a |
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* socket. In this loop, the first actual accept will occur in the |
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* BIO_read() function. |
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*/ |
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if (BIO_do_accept(in) <= 0) |
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goto err; |
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for (;;) { |
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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 BIO stack so the |
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* next time we call any function for this BIO, it will attempt |
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* to do an accept |
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*/ |
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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) |
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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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ERR_print_errors_fp(stderr); |
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} |
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if (in != NULL) |
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BIO_free(in); |
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exit(ret); |
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return (!ret); |
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}
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