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Diffstat (limited to '')
| -rw-r--r-- | man4/pts.4 | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -5,7 +5,7 @@ .\" Redistribute and revise at will. .\" %%%LICENSE_END .\" -.TH pts 4 2022-10-30 "Linux man-pages 6.05.01" +.TH pts 4 2023-10-31 "Linux man-pages 6.7" .SH NAME ptmx, pts \- pseudoterminal master and slave .SH DESCRIPTION @@ -15,7 +15,7 @@ The file is a character file with major number 5 and minor number 2, usually with mode 0666 and ownership root:root. It is used to create a pseudoterminal master and slave pair. -.PP +.P When a process opens .IR /dev/ptmx , it gets a file @@ -29,19 +29,19 @@ is an independent pseudoterminal master with its own associated slave, whose path can be found by passing the file descriptor to .BR ptsname (3). -.PP +.P Before opening the pseudoterminal slave, you must pass the master's file descriptor to .BR grantpt (3) and .BR unlockpt (3). -.PP +.P Once both the pseudoterminal master and slave are open, the slave provides processes with an interface that is identical to that of a real terminal. -.PP +.P Data written to the slave is presented on the master file descriptor as input. Data written to the master is presented to the slave as input. -.PP +.P In practice, pseudoterminals are used for implementing terminal emulators such as .BR xterm (1), @@ -52,7 +52,7 @@ programs such as .BR sshd (8), in which data read from the pseudoterminal master is sent across the network to a client program that is connected to a terminal or terminal emulator. -.PP +.P Pseudoterminals can also be used to send input to programs that normally refuse to read input from pipes (such as .BR su (1), |