isc_result_t omapi_connection_connect (omapi_object_t *h)
{
isc_result_t status;
/*
* We use the INPROGRESS status to indicate that
* we want more from the socket. In this case we
* have now connected and are trying to write to
* the socket for the first time. For the signaling
* code this is the same as a SUCCESS so we don't
* pass it on as a signal.
*/
status = omapi_connection_connect_internal (h);
if (status == ISC_R_INPROGRESS)
return ISC_R_INPROGRESS;
if (status != ISC_R_SUCCESS)
omapi_signal (h, "status", status);
return ISC_R_SUCCESS;
}
isc_result_t omapi_connect_list (omapi_object_t *c,
omapi_addr_list_t *remote_addrs,
omapi_addr_t *local_addr)
{
isc_result_t status;
omapi_connection_object_t *obj;
int flag;
struct sockaddr_in local_sin;
obj = (omapi_connection_object_t *)0;
status = omapi_connection_allocate (&obj, MDL);
if (status != ISC_R_SUCCESS)
return status;
status = omapi_object_reference (&c -> outer, (omapi_object_t *)obj,
MDL);
if (status != ISC_R_SUCCESS) {
omapi_connection_dereference (&obj, MDL);
return status;
}
status = omapi_object_reference (&obj -> inner, c, MDL);
if (status != ISC_R_SUCCESS) {
omapi_connection_dereference (&obj, MDL);
return status;
}
/* Store the address list on the object. */
omapi_addr_list_reference (&obj -> connect_list, remote_addrs, MDL);
obj -> cptr = 0;
obj -> state = omapi_connection_unconnected;
#if defined (TRACING)
/* If we're playing back, don't actually try to connect - just leave
the object available for a subsequent connect or disconnect. */
if (!trace_playback ()) {
#endif
/* Create a socket on which to communicate. */
obj -> socket =
socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (obj -> socket < 0) {
omapi_connection_dereference (&obj, MDL);
if (errno == EMFILE || errno == ENFILE
|| errno == ENOBUFS)
return ISC_R_NORESOURCES;
return ISC_R_UNEXPECTED;
}
/* Set up the local address, if any. */
if (local_addr) {
/* Only do TCPv4 so far. */
if (local_addr -> addrtype != AF_INET) {
omapi_connection_dereference (&obj, MDL);
return DHCP_R_INVALIDARG;
}
local_sin.sin_port = htons (local_addr -> port);
memcpy (&local_sin.sin_addr,
local_addr -> address,
local_addr -> addrlen);
#if defined (HAVE_SA_LEN)
local_sin.sin_len = sizeof local_addr;
#endif
local_sin.sin_family = AF_INET;
memset (&local_sin.sin_zero, 0,
sizeof local_sin.sin_zero);
if (bind (obj -> socket, (struct sockaddr *)&local_sin,
sizeof local_sin) < 0) {
omapi_connection_object_t **objp = &obj;
omapi_object_t **o = (omapi_object_t **)objp;
omapi_object_dereference(o, MDL);
if (errno == EADDRINUSE)
return ISC_R_ADDRINUSE;
if (errno == EADDRNOTAVAIL)
return ISC_R_ADDRNOTAVAIL;
if (errno == EACCES)
return ISC_R_NOPERM;
return ISC_R_UNEXPECTED;
}
obj -> local_addr = local_sin;
}
#if defined(F_SETFD)
if (fcntl (obj -> socket, F_SETFD, 1) < 0) {
close (obj -> socket);
omapi_connection_dereference (&obj, MDL);
return ISC_R_UNEXPECTED;
}
#endif
/* Set the SO_REUSEADDR flag (this should not fail). */
flag = 1;
if (setsockopt (obj -> socket, SOL_SOCKET, SO_REUSEADDR,
(char *)&flag, sizeof flag) < 0) {
omapi_connection_dereference (&obj, MDL);
return ISC_R_UNEXPECTED;
}
/* Set the file to nonblocking mode. */
if (fcntl (obj -> socket, F_SETFL, O_NONBLOCK) < 0) {
omapi_connection_dereference (&obj, MDL);
return ISC_R_UNEXPECTED;
}
status = (omapi_register_io_object
((omapi_object_t *)obj,
0, omapi_connection_writefd,
0, omapi_connection_connect,
omapi_connection_reaper));
if (status != ISC_R_SUCCESS)
goto out;
status = omapi_connection_connect_internal ((omapi_object_t *)
obj);
#if defined (TRACING)
}
omapi_connection_register (obj, MDL);
#endif
out:
omapi_connection_dereference (&obj, MDL);
return status;
}
