2 /* demos/bio/saccept.c */
5 * A minimal program to serve an SSL connection.
8 * host is the interface IP to use. If any interface, use *:port
9 * The default it *:4433
11 * cc -I../../include saccept.c -L../.. -lssl -lcrypto -ldl
16 #include <openssl/err.h>
17 #include <openssl/ssl.h>
19 #define CERT_FILE "server.pem"
33 * Catch at most once, and don't restart the accept system call.
35 sa.sa_flags = SA_RESETHAND;
36 sa.sa_handler = interrupt;
37 sigemptyset(&sa.sa_mask);
38 sigaction(SIGINT, &sa, NULL);
41 int main(int argc, char *argv[])
55 SSL_load_error_strings();
57 /* Add ciphers and message digests */
58 OpenSSL_add_ssl_algorithms();
60 ctx = SSL_CTX_new(TLS_server_method());
61 if (!SSL_CTX_use_certificate_chain_file(ctx, CERT_FILE))
63 if (!SSL_CTX_use_PrivateKey_file(ctx, CERT_FILE, SSL_FILETYPE_PEM))
65 if (!SSL_CTX_check_private_key(ctx))
68 /* Setup server side SSL bio */
69 ssl_bio = BIO_new_ssl(ctx, 0);
71 if ((in = BIO_new_accept(port)) == NULL)
75 * This means that when a new connection is accepted on 'in', The ssl_bio
76 * will be 'duplicated' and have the new socket BIO push into it.
77 * Basically it means the SSL BIO will be automatically setup
79 BIO_set_accept_bios(in, ssl_bio);
81 /* Arrange to leave server loop on interrupt */
86 * The first call will setup the accept socket, and the second will get a
87 * socket. In this loop, the first actual accept will occur in the
88 * BIO_read() function.
91 if (BIO_do_accept(in) <= 0)
95 i = BIO_read(in, buf, 512);
98 * If we have finished, remove the underlying BIO stack so the
99 * next time we call any function for this BIO, it will attempt
109 fwrite(buf, 1, i, stdout);
116 ERR_print_errors_fp(stderr);