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net: remove unreachable error #24222

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bewchy wants to merge 4 commits into from
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net: remove unreachable error #24222

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d961de0
net: remove unreachable error
bewchy Nov 7, 2018
4899951
net: add comments on unreachable error check
bewchy Nov 13, 2018
f7565e6
net: add comments explaining error check
bewchy Nov 13, 2018
e0eb104
net: add comments to Socket constructor
lpinca Nov 13, 2018
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7 changes: 7 additions & 0 deletions lib/net.js
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Original file line number Diff line number Diff line change
Expand Up @@ -264,9 +264,16 @@ function Socket(options) {
const { fd } = options;
let err;

// createHandle will throw ERR_INVALID_FD_TYPE if `fd` is not
// a valid `PIPE` or `TCP` descriptor
this._handle = createHandle(fd, false);

err = this._handle.open(fd);

// While difficult to fabricate, in some architectures
// `open` may return an error code for valid file descriptors
// which cannot be openned. This is difficult to test as most
// un-openable fds will throw on `createHandle`
if (err)
throw errnoException(err, 'open');

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