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authorDaniel Friesel <derf@finalrewind.org>2021-09-21 21:44:46 +0200
committerDaniel Friesel <derf@finalrewind.org>2021-09-21 21:44:46 +0200
commitcd0e7155c746bcee22e2e7d66691bdefff4d0b3c (patch)
tree80b3188f077ef806769cb8c9ea7b216ab8df2a3c /test/ok/pnm
parent9fb7c1bbc8b25a3e1e45cf353999d997a3f6c92e (diff)
Fix crash when X11 is connected via FD 0.
If stdin is not connected, the X11 connection may use FD 0, which is traditionally used for STDIN. Do not attempt reads from fd 0 unless it _really_ is connected to a terminal on stdin. Reported by https://github.com/pvanstam, thanks a lot! Closes #631 Closes #632
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