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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

SEE ALSO

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

STREAMS Programming Guide

Index

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUES

ERRORS

ATTRIBUTES

SEE ALSO

Партнёры:

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