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PR/56112 CVS commit: src/usr.bin/shlock

The following reply was made to PR bin/56112; it has been noted by GNATS.

From: "Christos Zoulas" <>
Subject: PR/56112 CVS commit: src/usr.bin/shlock
Date: Fri, 16 Apr 2021 18:41:12 -0400

 Module Name:	src
 Committed By:	christos
 Date:		Fri Apr 16 22:41:12 UTC 2021
 Modified Files:
 	src/usr.bin/shlock: shlock.c
 Log Message:
 PR/56112: Justin Parrott: Don't unlink a lock file without locking it, because
 you can have races when multiple processes try to unlink it. Check the link
 count to see if we have won the race.
 While here:
 - use snprintf
 - use warn
 - use size_t/ssize_t
 - use loops instead of goto
 - KNF
 To generate a diff of this commit:
 cvs rdiff -u -r1.13 -r1.14 src/usr.bin/shlock/shlock.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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