void main()
{
static long address;
static int retval;
sock_init();
// Wait for the interface to come up
while (ifpending(IF_DEFAULT) == IF_COMING_UP) {
tcp_tick(NULL);
}
pop3_init(storemsg);
printf("Resolving name...\n");
address = resolve(POP_HOST);
printf("Calling pop3_getmail()...\n");
pop3_getmail(POP_USER, POP_PASS, address);
printf("Entering pop3_tick()...\n");
while((retval = pop3_tick()) == POP_PENDING)
continue;
if(retval == POP_SUCCESS)
printf("POP was successful!\n");
if(retval == POP_TIME)
printf("POP timed out!\n");
if(retval == POP_ERROR)
printf("POP returned a general error!\n");
printf("All done!\n");
}
/***********************************************************************
*
* pop3_do()
*
* This function is registered as 'curl_do' function. It decodes the path
* parts etc as a wrapper to the actual DO function (pop3_perform).
*
* The input argument is already checked for validity.
*/
static CURLcode pop3_do(struct connectdata *conn, bool *done)
{
CURLcode retcode = CURLE_OK;
*done = FALSE; /* default to false */
/*
Since connections can be re-used between SessionHandles, this might be a
connection already existing but on a fresh SessionHandle struct so we must
make sure we have a good 'struct POP3' to play with. For new connections,
the struct POP3 is allocated and setup in the pop3_connect() function.
*/
Curl_reset_reqproto(conn);
retcode = pop3_init(conn);
if(retcode)
return retcode;
retcode = pop3_parse_url_path(conn);
if(retcode)
return retcode;
retcode = pop3_regular_transfer(conn, done);
return retcode;
}
/***********************************************************************
*
* pop3_do()
*
* This function is registered as 'curl_do' function. It decodes the path
* parts etc as a wrapper to the actual DO function (pop3_perform).
*
* The input argument is already checked for validity.
*/
static CURLcode pop3_do(struct connectdata *conn, bool *done)
{
CURLcode result = CURLE_OK;
*done = FALSE; /* default to false */
/* Since connections can be re-used between SessionHandles, there might be a
connection already existing but on a fresh SessionHandle struct. As such
we make sure we have a good POP3 struct to play with. For new connections
the POP3 struct is allocated and setup in the pop3_connect() function. */
Curl_reset_reqproto(conn);
result = pop3_init(conn);
if(result)
return result;
/* Parse the URL path */
result = pop3_parse_url_path(conn);
if(result)
return result;
/* Parse the custom request */
result = pop3_parse_custom_request(conn);
if(result)
return result;
result = pop3_regular_transfer(conn, done);
return result;
}
static CURLcode pop3_setup_connection(struct connectdata *conn)
{
/* Initialise the POP3 layer */
CURLcode result = pop3_init(conn);
if(result)
return result;
/* Clear the TLS upgraded flag */
conn->tls_upgraded = FALSE;
return CURLE_OK;
}
/*
* pop3_connect() should do everything that is to be considered a part of
* the connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode pop3_connect(struct connectdata *conn,
bool *done) /* see description above */
{
CURLcode result;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct SessionHandle *data=conn->data;
struct pingpong *pp = &pop3c->pp;
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
result = pop3_init(conn);
if(CURLE_OK != result)
return result;
/* We always support persistent connections on pop3 */
conn->bits.close = FALSE;
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = pop3_statemach_act;
pp->endofresp = pop3_endofresp;
pp->conn = conn;
if(conn->handler->flags & PROTOPT_SSL) {
/* BLOCKING */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
}
Curl_pp_init(pp); /* init the response reader stuff */
/* When we connect, we start in the state where we await the server greet
response */
state(conn, POP3_SERVERGREET);
if(data->state.used_interface == Curl_if_multi)
result = pop3_multi_statemach(conn, done);
else {
result = pop3_easy_statemach(conn);
if(!result)
*done = TRUE;
}
return result;
}
/***********************************************************************
*
* pop3_connect()
*
* This function should do everything that is to be considered a part of the
* connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode pop3_connect(struct connectdata *conn, bool *done)
{
CURLcode result;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct pingpong *pp = &pop3c->pp;
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
result = pop3_init(conn);
if(CURLE_OK != result)
return result;
/* We always support persistent connections on pop3 */
conn->bits.close = FALSE;
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = pop3_statemach_act;
pp->endofresp = pop3_endofresp;
pp->conn = conn;
if(conn->handler->flags & PROTOPT_SSL) {
/* POP3S is simply pop3 with SSL for the control channel */
/* so perform the SSL initialization for this socket */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
}
/* Initialise the response reader stuff */
Curl_pp_init(pp);
/* Start off waiting for the server greeting response */
state(conn, POP3_SERVERGREET);
result = pop3_multi_statemach(conn, done);
return result;
}
static CURLcode pop3_setup_connection(struct connectdata *conn)
{
struct SessionHandle *data = conn->data;
/* Initialise the POP3 layer */
CURLcode result = pop3_init(conn);
if(result)
return result;
/* Clear the TLS upgraded flag */
conn->tls_upgraded = FALSE;
/* Set up the proxy if necessary */
if(conn->bits.httpproxy && !data->set.tunnel_thru_httpproxy) {
/* Unless we have asked to tunnel POP3 operations through the proxy, we
switch and use HTTP operations only */
#ifndef CURL_DISABLE_HTTP
if(conn->handler == &Curl_handler_pop3)
conn->handler = &Curl_handler_pop3_proxy;
else {
#ifdef USE_SSL
conn->handler = &Curl_handler_pop3s_proxy;
#else
failf(data, "POP3S not supported!");
return CURLE_UNSUPPORTED_PROTOCOL;
#endif
}
/* set it up as an HTTP connection instead */
return conn->handler->setup_connection(conn);
#else
failf(data, "POP3 over http proxy requires HTTP support built-in!");
return CURLE_UNSUPPORTED_PROTOCOL;
#endif
}
data->state.path++; /* don't include the initial slash */
return CURLE_OK;
}
/***********************************************************************
*
* pop3_connect()
*
* This function should do everything that is to be considered a part of the
* connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode pop3_connect(struct connectdata *conn, bool *done)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct pingpong *pp = &pop3c->pp;
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
/* Initialise the POP3 layer */
result = pop3_init(conn);
if(result)
return result;
/* We always support persistent connections in POP3 */
conn->bits.close = FALSE;
/* Set the default response time-out */
pp->response_time = RESP_TIMEOUT;
pp->statemach_act = pop3_statemach_act;
pp->endofresp = pop3_endofresp;
pp->conn = conn;
/* Initialise the pingpong layer */
Curl_pp_init(pp);
/* Start off waiting for the server greeting response */
state(conn, POP3_SERVERGREET);
result = pop3_multi_statemach(conn, done);
return result;
}
/*
* pop3_connect() should do everything that is to be considered a part of
* the connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode pop3_connect(struct connectdata *conn,
bool *done) /* see description above */
{
CURLcode result;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct SessionHandle *data=conn->data;
struct pingpong *pp = &pop3c->pp;
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
result = pop3_init(conn);
if(CURLE_OK != result)
return result;
/* We always support persistent connections on pop3 */
conn->bits.close = FALSE;
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = pop3_statemach_act;
pp->endofresp = pop3_endofresp;
pp->conn = conn;
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
/* for POP3 over HTTP proxy */
struct HTTP http_proxy;
struct FTP *pop3_save;
/* BLOCKING */
/* We want "seamless" POP3 operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the member
* conn->proto.http; we want POP3 through HTTP and we have to change the
* member temporarily for connecting to the HTTP proxy. After
* Curl_proxyCONNECT we have to set back the member to the original struct
* POP3 pointer
*/
pop3_save = data->state.proto.pop3;
memset(&http_proxy, 0, sizeof(http_proxy));
data->state.proto.http = &http_proxy;
result = Curl_proxyCONNECT(conn, FIRSTSOCKET,
conn->host.name, conn->remote_port);
data->state.proto.pop3 = pop3_save;
if(CURLE_OK != result)
return result;
}
if(conn->handler->flags & PROTOPT_SSL) {
/* BLOCKING */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
}
Curl_pp_init(pp); /* init the response reader stuff */
/* When we connect, we start in the state where we await the server greet
response */
state(conn, POP3_SERVERGREET);
if(data->state.used_interface == Curl_if_multi)
result = pop3_multi_statemach(conn, done);
else {
result = pop3_easy_statemach(conn);
if(!result)
*done = TRUE;
}
return result;
}
