The Open Group Base Specifications Issue 7
IEEE Std 1003.1-2008, 2016 Edition
Copyright © 2001-2016 The IEEE and The Open Group

#### NAME

> netinet/tcp.h - definitions for the Internet Transmission Control Protocol (TCP)

#### SYNOPSIS

> `#include <netinet/tcp.h>`

#### DESCRIPTION

> The <netinet/tcp.h> header shall define the following symbolic constant for use as a socket option at the IPPROTO_TCP level:

> TCP_NODELAY
>   Avoid coalescing of small segments.

> The implementation need not allow the value of the option to be set via setsockopt() or retrieved via getsockopt().

The following sections are informative.

#### APPLICATION USAGE

> None.

#### RATIONALE

> None.

#### FUTURE DIRECTIONS

> None.

#### SEE ALSO

> <sys/socket.h>

> XSH getsockopt, setsockopt

#### CHANGE HISTORY

> First released in Issue 6. Derived from the XNS, Issue 5.2 specification.

#### Issue 7

> This reference page is clarified with respect to macros and symbolic constants.

End of informative text.

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