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authorLukas Fleischer2013-04-10 12:30:52 +0200
committerJason A. Donenfeld2013-04-10 13:46:30 +0200
commit8d8e84e72a24f474a6659ca04d0906723b2ac975 (patch)
tree60942d045a435c87284da5a21df7be407e7c7978 /Makefile
parent410da3ac1cdb002116c08f143ce82534897ede27 (diff)
downloadcgit-8d8e84e72a24f474a6659ca04d0906723b2ac975.tar.gz
cgit.c: Do not restore unset environment variables
getenv() returns a NULL pointer if the specified variable name cannot be found in the environment. However, some setenv() implementations crash if a NULL pointer is passed as second argument. Only restore variables that are not NULL. See commit d96d2c98ebc4c2d3765f5b35c4142e0e828a421b for a related patch. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
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