| author | Tero Marttila <terom@fixme.fi> |
| Sun, 16 Aug 2009 16:38:44 +0300 | |
| changeset 5 | 59bed837c265 |
| parent 2 | 171e77f8d675 |
| permissions | -rw-r--r-- |
| 0 | 1 |
""" |
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Socket addresses |
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""" |
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cimport libc |
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move pxd's to inc dir, split off sctp.pxd
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from addr cimport * |
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move pxd's to inc dir, split off sctp.pxd
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parents:
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cdef class sockaddr : |
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cdef void _init_family (self, libc.sa_family_t family=libc.AF_UNSPEC) : |
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self.family = family |
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# XXX:use size_t |
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cdef int _get_sockaddr (self, libc.sockaddr **sa_ptr, libc.socklen_t *sa_len) except -1 : |
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""" |
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Get the sockaddr pointer and sockaddr length for this address |
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""" |
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raise NotImplementedError() |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
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diff
changeset
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cdef libc.sockaddr* _get_sockaddr_ptr (self) except NULL : |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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""" |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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Get the sockaddr pointer |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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""" |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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cdef libc.sockaddr *sa |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
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cdef libc.socklen_t sa_len |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
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parents:
1
diff
changeset
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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self._get_sockaddr(&sa, &sa_len) |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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return sa |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
33 |
cdef libc.socklen_t _get_sockaddr_len (self) except -1 : |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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""" |
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
35 |
Get the sockaddr len |
|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
36 |
""" |
|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
37 |
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|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
38 |
cdef libc.sockaddr *sa |
|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
39 |
cdef libc.socklen_t sa_len |
|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
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171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
41 |
self._get_sockaddr(&sa, &sa_len) |
|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
42 |
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|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
|
43 |
return sa_len |
|
171e77f8d675
re-implement sctp_bindx using new sock_addr
Tero Marttila <terom@fixme.fi>
parents:
1
diff
changeset
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cdef int _set_sockaddr (self, libc.sockaddr *sa, size_t sa_len) except -1 : |
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""" |
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Set the sockaddr value for this address; sa_len must match! |
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""" |
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raise NotImplementedError() |
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def getnameinfo (self) : |
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""" |
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Returns a (host, serv) tuple for this address à la getnameinfo |
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""" |
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cdef libc.sockaddr *sa |
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cdef libc.socklen_t sa_len |
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# XXX: take as args? |
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cdef int flags = libc.NI_NUMERICHOST | libc.NI_NUMERICSERV |
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# get our abstract sockaddr |
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self._get_sockaddr(&sa, &sa_len) |
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# get nice text format |
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return libc.getnameinfo(sa, sa_len, flags) |
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property addr : |
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""" |
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The ASCII literal network address |
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""" |
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def __get__ (self) : |
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""" |
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Default implmentation using getnameinfo() |
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""" |
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addr, port = self.getnameinfo() |
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return addr |
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property port : |
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""" |
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The integer port number |
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""" |
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def __get__ (self) : |
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""" |
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Default implementation using getnameinfo() and int() |
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""" |
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addr, port = self.getnameinfo() |
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return int(port) |
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cdef class sockaddr_in (sockaddr) : |
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""" |
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AF_INET struct sockaddr_in |
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>>> sa = sockaddr_in("127.0.0.1", 80)
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>>> sa.addr |
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'127.0.0.1' |
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>>> sa.port |
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80 |
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>>> str(sa) |
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'127.0.0.1:80' |
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>>> str(sockaddr_in()) |
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'0.0.0.0:0' |
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""" |
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# the struct sockaddr_in |
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cdef libc.sockaddr_in sockaddr |
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def __init__ (self, object addr=None, libc.in_port_t port=0) : |
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""" |
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Construct using given literal IPv4 address and TCP/UDP port |
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addr - IPv4 address, defaults to INADDR_ANY (0.0.0.0) |
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port - TCP/UDP port, defaults to 0 (ephemeral) |
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""" |
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# store our family |
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# XXX: this should be a class attribute... |
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self._init_family(libc.AF_INET) |
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# constant af |
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self.sockaddr.sin_family = self.family |
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# set the sin_port |
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self.sockaddr.sin_port = libc.htons(port) |
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if addr : |
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# set the sin_addr |
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# this automatically converts the addr from str -> char * |
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libc.inet_pton(self.family, addr, &self.sockaddr.sin_addr) |
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else : |
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# set as INADDR_ANY |
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self.sockaddr.sin_addr.s_addr = libc.INADDR_ANY |
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cdef int _get_sockaddr (self, libc.sockaddr **sa_ptr, libc.socklen_t *sa_len) except -1 : |
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if sa_ptr : |
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sa_ptr[0] = <libc.sockaddr *> &self.sockaddr |
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if sa_len : |
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sa_len[0] = sizeof(self.sockaddr) |
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return 0 |
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cdef int _set_sockaddr (self, libc.sockaddr *sa, size_t sa_len) except -1 : |
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assert sa_len == sizeof(self.sockaddr) |
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libc.memcpy(&self.sockaddr, sa, sa_len) |
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property port : |
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""" |
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The integer port number |
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""" |
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def __get__ (self) : |
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return libc.ntohs(self.sockaddr.sin_port) |
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def __str__ (self) : |
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""" |
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Return the literal ASCII representation for this sockaddr as an '<addr>:<port> string |
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""" |
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# format |
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return "%s:%s" % self.getnameinfo() |
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cdef class sockaddr_in6 (sockaddr) : |
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""" |
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AF_INET6 struct sockaddr_in6 |
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>>> sa6 = sockaddr_in6("::1", 80)
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>>> sa6.addr |
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'::1' |
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>>> sa6.port |
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80 |
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>>> str(sa6) |
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'[::1]:80' |
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>>> str(sockaddr_in6()) |
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'[::]:0' |
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""" |
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cdef libc.sockaddr_in6 sockaddr |
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def __init__ (self, object addr=None, libc.in_port_t port=0) : |
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""" |
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Construct using given literal IPv6 address and TCP/UDP port |
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addr - IPv6 address, defaults to in6addr_any (::) |
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port - TCP/UDP port, defaults to 0 (ephemeral) |
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""" |
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# store our family |
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# XXX: this should be a class attribute... |
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self._init_family(libc.AF_INET6) |
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# constant af |
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self.sockaddr.sin6_family = self.family |
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# set the sin_port |
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self.sockaddr.sin6_port = libc.htons(port) |
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if addr : |
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# set the sin_addr |
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# this automatically converts the addr from str -> char * |
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libc.inet_pton(self.family, addr, &self.sockaddr.sin6_addr) |
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else : |
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# set as INADDR_ANY |
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self.sockaddr.sin6_addr = libc.in6addr_any |
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cdef int _get_sockaddr (self, libc.sockaddr **sa_ptr, libc.socklen_t *sa_len) except -1 : |
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if sa_ptr : |
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sa_ptr[0] = <libc.sockaddr *> &self.sockaddr |
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if sa_len : |
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sa_len[0] = sizeof(self.sockaddr) |
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return 0 |
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cdef int _set_sockaddr (self, libc.sockaddr *sa, size_t sa_len) except -1 : |
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assert sa_len == sizeof(self.sockaddr) |
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libc.memcpy(&self.sockaddr, sa, sa_len) |
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property port : |
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""" |
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The integer port number |
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""" |
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def __get__ (self) : |
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return libc.ntohs(self.sockaddr.sin6_port) |
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def __str__ (self) : |
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""" |
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Return the literal ASCII representation for this sockaddr as a '[<addr>]:<port> string |
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""" |
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# format |
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return "[%s]:%s" % self.getnameinfo() |
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# mapping of AF -> sockaddr, user-modifyable |
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SOCKADDR_BY_FAMILY = {
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libc.AF_INET: sockaddr_in, |
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libc.AF_INET6: sockaddr_in6, |
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} |
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# build a sockaddr from the given sockaddr struct, based on sa_family |
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cdef sockaddr build_sockaddr (libc.sockaddr *sa, size_t sa_len) : |
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# lookup correct class to use |
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addr_type = SOCKADDR_BY_FAMILY[sa.sa_family] |
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# construct with defaults |
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cdef sockaddr addr = addr_type() |
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# store |
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addr._set_sockaddr(sa, sa_len) |
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return addr |
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cdef class addrinfo : |
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cdef _init_addrinfo (self, libc.addrinfo *ai) : |
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#ai.flags = c_ai.ai_flags |
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self.family = ai.ai_family |
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self.socktype = ai.ai_socktype |
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self.protocol = ai.ai_protocol |
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self.addr = build_sockaddr(ai.ai_addr, ai.ai_addrlen) |
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self.canonname = ai.ai_canonname if ai.ai_canonname else None |
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def __str__ (self) : |
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return "family=%d, socktype=%d, protocol=%d, addr=%s, canonname=%s" % (self.family, self.socktype, self.protocol, self.addr, self.canonname) |
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cdef addrinfo build_addrinfo (libc.addrinfo *c_ai) : |
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cdef addrinfo ai = addrinfo() |
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ai._init_addrinfo(c_ai) |
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return ai |
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cdef class endpoint : |
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def __init__ (self, hostname=None, service=None) : |
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""" |
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Construct with the given hostname/service, either of which may be None. |
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A hostname of None implies all valid local addresses (with AI_PASSIVE), and a service of None implies an |
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ephemeral port. |
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hostname - the literal address or DNS hostname or anything else that GAI supports |
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service - the numeric port or service name |
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""" |
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self.hostname = str(hostname) |
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self.service = str(service) |
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cpdef getaddrinfo (self, int family, int socktype, int protocol = 0, int flags = libc.AI_PASSIVE) : |
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""" |
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Look up our hostname/service using the given socket parameters, and return a sequence of addrinfo objects. |
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""" |
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# XXX: Cython doesn't support proper compound value literals... |
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cdef libc.addrinfo hints |
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libc.memset(&hints, 0, sizeof(hints)) |
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hints.ai_flags = flags |
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hints.ai_family = family |
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hints.ai_socktype = socktype |
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hints.ai_protocol = protocol |
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cdef libc.addrinfo *res, *r |
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cdef int err |
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cdef object ret = [] |
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cdef char *hostname = NULL |
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cdef char *service = NULL |
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if self.hostname is not None : |
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hostname = self.hostname |
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if self.service is not None : |
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service = self.service |
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# operate! |
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err = libc.c_getaddrinfo(hostname, service, &hints, &res) |
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||
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try : |
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if err : |
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# XXX: raise a GAIError |
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raise Exception(libc.gai_strerror(err)) |
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# gather results |
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r = res |
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while r : |
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ret.append(build_addrinfo(r)) |
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r = r.ai_next |
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# ok |
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return ret |
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||
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finally : |
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libc.c_freeaddrinfo(res) |
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def __str__ (self) : |
|
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return "hostname=%s, service=%s" % (self.hostname, self.service) |
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