strconf(1) strconf(1)
NAME
strconf - query stream configuration
SYNOPSIS
strconf[ -t| -m module]
DESCRIPTION
strconf is used to query the configuration of the stream associated
with the user's standard input.
OPTIONS
No option specified:
strconf lists all the modules in the stream as well as the top-
most driver. The list has one name per line; the first item is
the topmost module on the stream (if one exists), and the last
item is the name of the driver.
-t Only the topmost module (if one exists) is listed.
-m module
strconf checks if the named module is present on a stream. If it
is, strconf prints the message yes and returns an exit status of
zero. If not, it prints the message no and returns a non-zero
exit status.
The -t and -m options are mutually exclusive.
EXIT STATUS
0 The check on the stream was successful. With the -m or -t option,
a zero exit status means that the named or topmost module is
present.
not 0
The -m or -t option was used and the specified module is not
present. A non-zero exit status is also returned for various
error conditions such as the use of invalid options or failure of
an ioctl on the stream.
EXAMPLES
Example 1
The strconf command without arguments produces the following output
for a stream that has only the module ldterm pushed above the ports
driver:
ldterm
ports
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strconf(1) strconf(1)
Example 2
The following command checks if the module ldterm is on the stream:
$ strconf -m ldterm
If the module is present, strconf prints the message:
yes
and returns an exit status of zero.
SEE ALSO
strchg(1), streamio(7).
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