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bump gocui
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14
vendor/golang.org/x/sys/unix/sockcmsg_unix.go
generated
vendored
14
vendor/golang.org/x/sys/unix/sockcmsg_unix.go
generated
vendored
@ -52,6 +52,20 @@ func ParseSocketControlMessage(b []byte) ([]SocketControlMessage, error) {
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return msgs, nil
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}
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// ParseOneSocketControlMessage parses a single socket control message from b, returning the message header,
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// message data (a slice of b), and the remainder of b after that single message.
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// When there are no remaining messages, len(remainder) == 0.
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func ParseOneSocketControlMessage(b []byte) (hdr Cmsghdr, data []byte, remainder []byte, err error) {
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h, dbuf, err := socketControlMessageHeaderAndData(b)
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if err != nil {
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return Cmsghdr{}, nil, nil, err
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}
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if i := cmsgAlignOf(int(h.Len)); i < len(b) {
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remainder = b[i:]
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}
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return *h, dbuf, remainder, nil
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}
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func socketControlMessageHeaderAndData(b []byte) (*Cmsghdr, []byte, error) {
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h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
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if h.Len < SizeofCmsghdr || uint64(h.Len) > uint64(len(b)) {
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