Date: Sat, 04 Mar 2017 21:02:24 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 217159] ps default to 79 characters can break ps|grep in shell scripts Message-ID: <bug-217159-8-JyrD8RX4Lq@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-217159-8@https.bugs.freebsd.org/bugzilla/> References: <bug-217159-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217159 Conrad Meyer <cem@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|freebsd-bugs@FreeBSD.org |cem@freebsd.org CC| |cem@freebsd.org --- Comment #1 from Conrad Meyer <cem@freebsd.org> --- Some history on this one. This dates back to an improvement by "bloom@" (Jim Bloom?) in BSD in 1985 to use the terminal's size: > get screen width ioctl added and hold passwd file open https://svnweb.freebsd.org/csrg/bin/ps/ps.c?r1=18105&r2=18106&; Prior to that, it was hardcoded at 80. Kirk McKusick merged 5.4.1.1 (of what, I'm not sure), which changed the ioctl to check stdout instead of stdin (CSRG r27213). In 1990, marc@ added the fallback checking for stderr, stdout, and stdin, and dropped the width from 80 to 79, as you see today. The commit log was... terse: > new version https://svnweb.freebsd.org/csrg/bin/ps/ps.c?r1=40675&r2=40674&pathrev=40675 It hasn't changed significantly since. -- You are receiving this mail because: You are the assignee for the bug.
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