Commitcdafd17

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Add socket.SO_BINDTOIFINDEX constant

This socket option avoids a race condition between SO_BINDTODEVICE and network interface renaming.

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Original file line number	Diff line number	Diff line change
`@@ -437,6 +437,9 @@ Constants`
`437`	`437`	``TCP_FASTOPEN_KEY``, ``TCP_FASTOPEN_NO_COOKIE``,
`438`	`438`	``TCP_ZEROCOPY_RECEIVE``, ``TCP_INQ``, ``TCP_TX_DELAY``.
`439`	`439`	Added ``IP_PKTINFO``.
	`440`	+ Added ``SO_BINDTOIFINDEX``. On Linux this constant can be used in the
	`441`	+ same way that ``SO_BINDTODEVICE`` is used, but with the index of a
	`442`	`+ network interface instead of its name.`
`440`	`443`
`441`	`444`	`..data::AF_CAN`
`442`	`445`	`PF_CAN`

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`@@ -0,0 +1 @@`
	`1`	+Add:data:`socket.SO_BINDTOIFINDEX` constant.

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`@@ -7901,6 +7901,9 @@ socket_exec(PyObject *m)`
`7901`	`7901`	`#ifdefSO_BINDTODEVICE`
`7902`	`7902`	`ADD_INT_MACRO(m,SO_BINDTODEVICE);`
`7903`	`7903`	`#endif`
	`7904`	`+#ifdefSO_BINDTOIFINDEX`
	`7905`	`+ADD_INT_MACRO(m,SO_BINDTOIFINDEX);`
	`7906`	`+#endif`
`7904`	`7907`	`#ifdefSO_PRIORITY`
`7905`	`7908`	`ADD_INT_MACRO(m,SO_PRIORITY);`
`7906`	`7909`	`#endif`

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