Problem - Kevin Tafuro

servers. In particular, you need to create an spc_x509store_t object (see Recipe 10.5)
with a certificate and a private key. The information contained in this object is sent
to clients during the initial handshake. In addition, the SPC_X509STORE_USE_
CERTIFICATE flag needs to be set in the spc_x509store_t object. With the spc_
x509store_t created, calls need to be made to create the listening BIO object, put it
into a listening state, and accept new connections. (See Recipe 9.1 for a brief discussion
regarding BIO objects.)
Discussion
Once an spc_x509store_t object has been created and fully initialized, the first step in
creating an SSLserver is to call spc_listen( ). The hostname may be specified as
NULL, which indicates that the created socket should be bound to all interfaces. Anything
else should be specified in string form as an IP address for the interface to bind
to. For example, “127.0.0.1” would cause the server BIO object to bind only to the
local loopback interface.
#include
#include
#include
#include
BIO *spc_listen(char *host, int port) {
BIO *acpt = 0;
int addr_length;
char *addr;
if (port < 1 || port > 65535) return 0;
if (!host) host = "*";
addr_length = strlen(host) + 6; /* 5 for int, 1 for colon */
if (!(addr = (char *)malloc(addr_length + 1))) return 0;
snprintf(addr, addr_length + 1, "%s:%d", host, port);
if ((acpt = BIO_new(BIO_s_accept( ))) != 0) {
BIO_set_accept_port(acpt, addr);
if (BIO_do_accept(acpt)