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55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
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import socket, struct
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# Python socket module does not have this constant
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DIOCNATLOOK = 23
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class Resolver:
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def original_addr(self, csock):
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"""
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The following sttruct defintions are plucked from the current XNU source, found here:
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http://www.opensource.apple.com/source/xnu/xnu-1699.26.8/bsd/net/pfvar.h
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union pf_state_xport {
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u_int16_t port;
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u_int16_t call_id;
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u_int32_t spi;
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};
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struct pf_addr {
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union {
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struct in_addr v4;
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struct in6_addr v6;
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u_int8_t addr8[16];
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u_int16_t addr16[8];
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u_int32_t addr32[4];
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} pfa;
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struct pfioc_natlook {
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struct pf_addr saddr;
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struct pf_addr daddr;
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struct pf_addr rsaddr;
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struct pf_addr rdaddr;
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#ifndef NO_APPLE_EXTENSIONS
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union pf_state_xport sxport;
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union pf_state_xport dxport;
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union pf_state_xport rsxport;
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union pf_state_xport rdxport;
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sa_family_t af;
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u_int8_t proto;
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u_int8_t proto_variant;
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u_int8_t direction;
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#else
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u_int16_t sport;
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u_int16_t dport;
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u_int16_t rsport;
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u_int16_t rdport;
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sa_family_t af;
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u_int8_t proto;
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u_int8_t direction;
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#endif
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};
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"""
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pass
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