isastream man page on SmartOS

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ISASTREAM(3C)							 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 │ Standard	      │
       ├────────────────────┼─────────────────┤
       │MT-Level	    │ MT-Safe	      │
       └────────────────────┴─────────────────┘

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

       STREAMS Programming Guide

				 Jul 24, 2002			 ISASTREAM(3C)
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