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Section: Linux Programmer's Manual (2)
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NAMEshutdown - shut down part of a full-duplex connection
DESCRIPTIONThe shutdown call causes all or part of a full-duplex connection on the socket associated with s to be shut down. If how is SHUT_RD, further receptions will be disallowed. If how is SHUT_WR, further transmissions will be disallowed. If how is SHUT_RDWR, further receptions and transmissions will be disallowed.
RETURN VALUEOn success, zero is returned. On error, -1 is returned, and errno is set appropriately.
- s is not a valid descriptor.
- s is a file, not a socket.
- The specified socket is not connected.
NOTESThe constants SHUT_RD, SHUT_WR, SHUT_RDWR have the value 0, 1, 2, respectively, and are defined in <sys/socket.h> since glibc-2.1.91.
CONFORMING TO4.4BSD (the shutdown function call first appeared in 4.2BSD).
SEE ALSOconnect(2), socket(2)
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