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| author | Daniel Bertalan <dani@danielbertalan.dev> | 2021-12-12 13:01:13 +0100 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2021-12-12 22:32:35 +0100 |
| commit | 8dd11ae717c2b720c3108805d3fb4bcae0d3b6f9 (patch) | |
| tree | ff7414bdaa7c9df883fc06be71bc2d26c4d07639 /Userland | |
| parent | 7ca23156592b6abc0f6d40e96364170f3f90b05a (diff) | |
| download | serenity-8dd11ae717c2b720c3108805d3fb4bcae0d3b6f9.zip | |
Kernel+SystemServer: Add /dev/tty
This file refers to the controlling terminal associated with the current
process. It's specified by POSIX, and is used by ports like openssh to
interface with the terminal even if the standard input/output is
redirected to somewhere else.
Our implementation leverages ProcFS's existing facilities to create
process-specific symbolic links. In our setup, `/dev/tty` is a symbolic
link to `/proc/self/tty`, which itself is a symlink to the appropriate
`/dev/pts` entry. If no TTY is attached, `/dev/tty` is left dangling.
Diffstat (limited to 'Userland')
| -rw-r--r-- | Userland/Services/SystemServer/main.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Userland/Services/SystemServer/main.cpp b/Userland/Services/SystemServer/main.cpp index 962394865b..1b020eea60 100644 --- a/Userland/Services/SystemServer/main.cpp +++ b/Userland/Services/SystemServer/main.cpp @@ -363,6 +363,11 @@ static void prepare_synthetic_filesystems() VERIFY_NOT_REACHED(); } + rc = symlink("/proc/self/tty", "/dev/tty"); + if (rc < 0) { + VERIFY_NOT_REACHED(); + } + populate_devfs(); rc = mkdir("/dev/pts", 0755); |