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PERL setsockopt Function


Syntax

setsockopt SOCKET, LEVEL, OPTNAME, OPTVAL


Definition and Usage

Sets the socket option OPTNAME with a value of OPTVAL on SOCKET at the specified LEVEL. You will need to import the Socket module for the valid values for OPTNAME shown below in Table

Return Value

  • undef on failure

  • 1 on success

OPTNAME 	Description
SO_DEBUG 	Enable/disable recording of debugging information.
SO_REUSEADDR 	Enable/disable local address reuse.
SO_KEEPALIVE 	Enable/disable keep connections alive.
SO_DONTROUTE 	Enable/disable routing bypass for outgoing messages.
SO_LINGER 	Linger on close if data is present.
SO_BROADCAST 	Enable/disable permission to transmit broadcast messages.
SO_OOBINLINE 	Enable/disable reception of out-of-band data in band.
SO_SNDBUF 	Set buffer size for output.
SO_RCVBUF 	Set buffer size for input.
SO_TYPE 	Get the type of the socket (get only).
SO_ERROR 	Get and clear error on the socket (get only).

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