readlink /proc/pid/fd/ sometimes returns a weird string

[izabera]

e.g. in a new shell upon opening webvm you can do ls -l /proc/self/fd/0 and readlink will return "socket:[0]"

in that case, fd 0 is a terminal and isatty(0) returns 1, so it's weird that it points to socket:[0]

[alexp-sssup]

Thanks for reporting this, it's currently the expected behavior but it's indeed not accurate. We'll take a look when we can, but since it does not have impact on real-world applications the fix won't be an immediate priority.

For context, socket here should be read as "a pipe of data", which the terminal effectively is.