svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
ttysrch(5)
ttysrch(5) File Formats ttysrch(5)
NAME
ttysrch - directory search list for ttyname
DESCRIPTION
ttysrch is an optional file that is used by the ttyname library rou‐
tine. This file contains the names of directories in /dev that contain
terminal and terminal-related device files. The purpose of this file is
to improve the performance of ttyname by indicating which subdirecto‐
ries in /dev contain terminal-related device files and should be
searched first. These subdirectory names must appear on separate lines
and must begin with /dev. Those path names that do not begin with /dev
will be ignored and a warning will be sent to the console. Blank lines
(lines containing only white space) and lines beginning with the com‐
ment character "#" will be ignored. For each file listed (except for
the special entry /dev), ttyname will recursively search through subdi‐
rectories looking for a match. If /dev appears in the ttysrch file, the
/dev directory itself will be searched but there will not be a recur‐
sive search through its subdirectories.
When ttyname searches through the device files, it tries to find a file
whose major/minor device number, file system identifier, and inode num‐
ber match that of the file descriptor it was given as an argument. If a
match is not found, it will settle for a match of just major/minor
device and file system identifier, if one can be found. However, if the
file descriptor is associated with a cloned device, this algorithm does
not work efficiently because the inode number of the device file asso‐
ciated with a clonable device will never match the inode number of the
file descriptor that was returned by the open of that clonable device.
To help with these situations, entries can be put into the /etc/ttysrch
file to improve performance when cloned devices are used as terminals
on a system (for example, for remote login). However, this is only use‐
ful if the minor devices related to a cloned device are put into a sub‐
directory. (It is important to note that device files need not exist
for cloned devices and if that is the case, ttyname will eventually
fail.) An optional second field is used in the /etc/ttysrch file to
indicate the matching criteria. This field is separated by white space
(any combination of blanks or tabs). The letter M means major/minor
device number, F means file system identifier, and I means inode num‐
ber. If this field is not specified for an entry, the default is MFI
which means try to match on all three. For cloned devices the field
should be MF, which indicates that it is not necessary to match on the
inode number.
Without the /etc/ttysrch file, ttyname will search the /dev directory
by first looking in the directories /dev/term, /dev/pts, and /dev/xt.
If a system has terminal devices installed in directories other than
these, it may help performance if the ttysrch file is created and con‐
tains that list of directories.
EXAMPLES
Example 1 A sample display of /etc/ttysrch command.
A sample /etc/ttysrch file follows:
/dev/term MFI
/dev/pts MFI
/dev/xt MFI
/dev/slan MF
This file tells ttyname that it should first search through those
directories listed and that when searching through the /dev/slan direc‐
tory, if a file is encountered whose major/minor devices and file sys‐
tem identifier match that of the file descriptor argument to ttyname,
this device name should be considered a match.
FILES
/etc/ttysrch
SEE ALSO
ttyname(3C)
Oracle Solaris 11.4 23 Feb 1994 ttysrch(5)