isastream man page on OpenIndiana

isastream man page on OpenIndiana

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isastream(3C)		 Standard C Library Functions		 isastream(3C)

NAME
       isastream - test a file descriptor

SYNOPSIS
       #include <stropts.h>

       int isastream(int fildes);

DESCRIPTION
       The   isastream() function determines if a file descriptor represents a
       STREAMS file. The fildes argument refers to an open file descriptor.

RETURN VALUES
       Upon successful completion, isastream() returns 1 if fildes  represents
       a  STREAMS  file,  and  0  if it does not.  Otherwise, −1 is return and
       errno is set to indicate the error.

ERRORS
       The isastream() function will fail if:

       EBADF	The fildes argument is not a valid file descriptor.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Committed			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │MT-Safe			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Standard		     │See standards(5).		   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       attributes(5), , standards(5), streamio(7I)

       STREAMS Programming Guide

SunOS 5.11			  24 Jul 2002			 isastream(3C)

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