CVS commit: src/bin/sh

["Robert Elz" <kre%netbsd.org@localhost>]

Module Name:    src
Committed By:   kre
Date:           Fri Jan 18 06:28:09 UTC 2019

Modified Files:
        src/bin/sh: trap.c

Log Message:
Finish (hopefully) the second half of 1.47 ... make sure
that when traps are marked as invalid, we never use them
for anything except output from the trap command.

Fixes issues where sub-shells of shells which use traps
(eg: to trap SIGPIPE) can end up looping forever if the
signal occurs in a sub-shell (where the trap is supposed
to be reset to its default).   Reported, and mostly
analyzed by Martijn Dekker.


To generate a diff of this commit:
cvs rdiff -u -r1.50 -r1.51 src/bin/sh/trap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.