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top: address the argument parsing quirk involving '-h' · c409f5a4
There exists the possibility that a 'putp' call can be issued before the 'setupterm' invocation has occurred, as is reflected in a bugzilla report referenced below. Strangely, such a SEGV isn't always triggered as logic would suggest it ought to be. I experienced a fault in these environments with the associated curses version: . archlinux, procps-ng 3.3.12, ncurses 6.0.20170429 . fedora-25, procps-ng 3.3.10, ncurses 6.0.20160709 . opensuse-42.2, procps-ng 3.3.9, ncurses 5.9.20140201 . gentoo, procps-ng 3.3.12, ncurses 6.0.20150808 . slackw-14.2, procps-ng 3.3.12, ncurses 6.0.20160910 Whereas under these environments there was no problem: . ubuntu-17.04, procps-ng 3.3.12, ncurses 6.0.20160625 . debian-test, procps-ng 3.3.12, ncurses 6.0.20161126 . mageia-5.1, procps-ng 3.3.9, ncurses 5.9.20140323 [ as an aside, the expected result in the bug report ] [ is incorrect and should mention the '1' parameter. ] [ however, until release 3.3.13 when the '1' becomes ] [ a valid switch, numbers are not detected when used ] [ with any switch which doesn't require an argument. ] [ you're welcome to treat that as a separate bugglet ] Reference(s): https://bugzilla.redhat.com/show_bug.cgi?id=1450429 Signed-off-by: Jim Warner <firstname.lastname@example.org>jim warner committed
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