SOCKATMARK(3) - Linux manual page online | Library functions

Determine whether socket is at out-of-band mark.

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This manual	Reference	Other manuals
sockatmark(3)	referred by	recv(2) \| signal-safety(7)
sockatmark(3)	refer to	attributes(7) \| fcntl(2) \| feature_test_macros(7) \| ioctl(2) \| recv(2) \| send(2) \| tcp(7)