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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
def connect(long s, object addr, object obj):
"""
CAUTION: unlike system ConnectEx(), this function returns 0 on success
"""
cdef int family, rc
cdef myOVERLAPPED *ov
cdef sockaddr_in ipv4_name
cdef sockaddr_in6 ipv6_name
cdef sockaddr *name
cdef int namelen
if not have_connectex:
raise ValueError, 'ConnectEx is not available on this system'
family = getAddrFamily(s)
if family == AF_INET:
name = <sockaddr *>&ipv4_name
namelen = sizeof(ipv4_name)
fillinetaddr(&ipv4_name, addr)
elif family == AF_INET6:
name = <sockaddr *>&ipv6_name
namelen = sizeof(ipv6_name)
fillinet6addr(&ipv6_name, addr)
else:
raise ValueError, 'unsupported address family'
name.sa_family = family
ov = makeOV(obj)
rc = lpConnectEx(s, name, namelen, NULL, 0, NULL, <OVERLAPPED *>ov)
if not rc:
rc = WSAGetLastError()
if rc != ERROR_IO_PENDING:
unmakeOV(ov)
return rc
return 0
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