TLS START ERROR IN LIBSTROPHE - c

Question

I want to create a simple chat client using libstrophe library. The code i have written is as below.
The connection with the gmail server is made. But I am getting a TLS error , which i cannot solve.
Please suugest what is causing the error.
#include <stdio.h>
#include <string.h>
#include <strophe.h>
int handle_reply(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,void * const userdata)
{
xmpp_stanza_t *query, *item;
char *type;
type = xmpp_stanza_get_type(stanza);
if (strcmp(type, "error") == 0)
fprintf(stderr, "ERROR: query failed\n");
else {
query = xmpp_stanza_get_child_by_name(stanza, "query");
printf("Active Sessions:\n");
for (item = xmpp_stanza_get_children(query); item;
item = xmpp_stanza_get_next(item))
printf("\t %s\n", xmpp_stanza_get_attribute(item, "jid"));
printf("END OF LIST\n");
}
/* disconnect */
xmpp_disconnect(conn);
return 0;
}
/* define a handler for connection events */
void conn_handler(xmpp_conn_t * const conn, const xmpp_conn_event_t status,
const int error, xmpp_stream_error_t * const stream_error,
void * const userdata)
{
xmpp_ctx_t *ctx = (xmpp_ctx_t *)userdata;
xmpp_stanza_t *iq, *query;
if (status == XMPP_CONN_CONNECT)
{
fprintf(stderr, "DEBUG: connected\n");
/* create iq stanza for request */
iq = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(iq, "iq");
xmpp_stanza_set_type(iq, "get");
xmpp_stanza_set_id(iq, "active1");
xmpp_stanza_set_attribute(iq, "to", "xxxxxxxxx.com");
query = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(query, "query");
xmpp_stanza_set_ns(query, XMPP_NS_DISCO_ITEMS);
xmpp_stanza_set_attribute(query, "node", "sessions");
xmpp_stanza_add_child(iq, query);
/* we can release the stanza since it belongs to iq now */
xmpp_stanza_release(query);
/* set up reply handler */
xmpp_id_handler_add(conn, handle_reply, "active1", ctx);
/* send out the stanza */
xmpp_send(conn, iq);
/* release the stanza */
xmpp_stanza_release(iq);
}
else {
fprintf(stderr, "DEBUG: disconnected\n");
xmpp_stop(ctx);
}
}
int main(int argc, char **argv)
{
int a;
xmpp_ctx_t *ctx;
xmpp_conn_t *conn;
xmpp_log_t *log;
char *jid, *pass, *host;
jid = "ACCOUNTNAME#gmail.com";
pass = "MYPASSWORD";
host = NULL;
/* init library */
xmpp_initialize();
/* create a context */
log = xmpp_get_default_logger(XMPP_LEVEL_DEBUG); /* pass NULL instead to silence output */
ctx = xmpp_ctx_new(NULL, log);
/* create a connection */
conn = xmpp_conn_new(ctx);
/* setup authentication information */
xmpp_conn_set_jid(conn, jid);
xmpp_conn_set_pass(conn, pass);
/* initiate connection */
xmpp_connect_client(conn, host, 0, conn_handler, ctx);
/* enter the event loop -
our connect handler will trigger an exit */
xmpp_run(ctx);
/* release our connection and context */
xmpp_conn_release(conn);
xmpp_ctx_free(ctx);
/* final shutdown of the library */
xmpp_shutdown();
scanf("%d",&a);
return 0;
}
The cmd prompt (output) is:
xmpp DEBUG sock_connect to alt3.xmpp.l.google.com:5222 returned 304
xmpp DEBUG attempting to connect to alt3.xmpp.l.google.com
xmpp DEBUG connection successful
conn DEBUG SENT: <?xml version="1.0"?><stream:stream to="gmail.com" xml:lang="en
" version="1.0" xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams">
xmpp DEBUG RECV: <stream:stream from='gmail.com' id='4EDF7B71A4D88935' version='
1.0' xmlns:stream='http://etherx.jabber.org/streams' xmlns='jabber:client'>
xmpp DEBUG RECV: <stream:features><starttls xmlns="urn:ietf:params:xml:ns:xmpp-t
ls"><required/></starttls><mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><
mechanism>X-OAUTH2</mechanism><mechanism>X-GOOGLE-TOKEN</mechanism></mechanisms>
</stream:features>
TLSS DEBUG QuerySecurityPackageInfo() success
TLSS DEBUG AcquireCredentialsHandle() success
conn DEBUG SENT: <starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>, error: 0
xmpp DEBUG RECV: <proceed xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>
xmpp DEBUG handle proceedtls called for proceed
xmpp DEBUG proceeding with TLS
**TLSS DEBUG QuerySecurityPackageInfo() success
TLSS DEBUG AcquireCredentialsHandle() success
xmpp DEBUG Couldn't start TLS! error -2146893032
conn DEBUG SENT: </stream:stream>
xmpp DEBUG parse error, disconnecting**
xmpp DEBUG Closing socket.
DEBUG: disconnected
event DEBUG Stopping event loop.
event DEBUG Event loop completed.