src: skip tcsetattr on exit when backgrounded#62946
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maruthang wants to merge 1 commit intonodejs:mainfrom
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src: skip tcsetattr on exit when backgrounded#62946maruthang wants to merge 1 commit intonodejs:mainfrom
maruthang wants to merge 1 commit intonodejs:mainfrom
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ResetStdio() unconditionally restored saved termios state on every tty stdio fd at exit. When Node is not the foreground process group for that terminal (`node script.js &`, ctrl-Z + bg, or a later pipeline stage taking the foreground), this clobbers the foreground pgrp's termios - breaking shell readline, leaving terminals in raw mode after the foreground pager exits, etc. Guard the tcsetattr call with `tcgetpgrp(fd) == getpgrp()` so we only restore when we are still the foreground pgrp for that terminal. The existing SIGTTOU defensive block is preserved to cover the unavoidable race where the foreground pgrp changes between the check and the call. Fixes: nodejs#35536 Refs: nodejs#42433 Signed-off-by: Maruthan G <maruthangt@gmail.com>
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ResetStdio() unconditionally restored saved termios state on every
tty stdio fd at exit. When Node is not the foreground process
group for that terminal (
node script.js &, ctrl-Z + bg, or alater pipeline stage taking the foreground), this clobbers the
foreground pgrp's termios - breaking shell readline, leaving
terminals in raw mode after the foreground pager exits, etc.
Guard the tcsetattr call with
tcgetpgrp(fd) == getpgrp()so weonly restore when we are still the foreground pgrp for that
terminal. The existing SIGTTOU defensive block is preserved to
cover the unavoidable race where the foreground pgrp changes
between the check and the call.
Fixes: #35536
Refs: #42433