DLPI_FD(3DLPI)DLPI_FD(3DLPI)NAMEdlpi_fd - get DLPI file descriptor
SYNOPSIS
cc [ flag ... ] file ... -ldlpi [ library ... ]
#include <libdlpi.h>
int dlpi_fd(dlpi_handle_t dh);
DESCRIPTION
The dlpi_fd() function returns the integer file descriptor that can be
used to directly operate on the open DLPI stream associated with the
DLPI handle dh. This file descriptor can be used to perform non-DLPI
operations that do not alter the state of the DLPI stream, such as
waiting for an event using poll(2), or pushing and configuring addi‐
tional STREAMS modules, such as pfmod(7M). If DLPI operations are
directly performed on the file descriptor, or a STREAMS module is
pushed that alters the message-passing interface such that DLPI opera‐
tions can no longer be issued, future operations on dh might not behave
as documented.
The returned file descriptor is managed by libdlpi(3LIB) and the
descriptor must not be closed.
RETURN VALUES
The function returns the integer file descriptor associated with the
DLPI handle dh. If dh is invalid, -1 is returned.
ATTRIBUTES
See attributes(5) for description of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Committed │
├────────────────────┼─────────────────┤
│MT-Level │ Safe │
└────────────────────┴─────────────────┘
SEE ALSOpoll(2), libdlpi(3LIB), attributes(5), dlpi(7P), pfmod(7M)
Jun 15, 2007 DLPI_FD(3DLPI)
