CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2021/06/24 21:38:17
Modified files:
usr.bin/ssh : serverloop.c
Log message:
Replace SIGCHLD/notify_pipe kludge with pselect.
Previously sshd's SIGCHLD handler would wake up select() by writing a
byte to notify_pipe. We can remove this by blocking SIGCHLD, checking
for child terminations then passing the original signal mask through
to pselect. This ensures that the pselect will immediately wake up if
a child terminates between wait()ing on them and the pselect.
In -portable, for platforms that do not have pselect the kludge is still
there but is hidden behind a pselect interface.
Based on other changes for bz#2158, ok djm@
