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* env: avoid leaving dangling pointers in __env_mapAlexander Monakov2016-03-061-0/+1
| | | | | | This is the minimal fix for __putenv leaving a pointer to freed heap storage in __env_map array, which could later on lead to errors such as double-free.
* include cleanups: remove unused headers and add feature test macrosSzabolcs Nagy2013-12-121-2/+0
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* as an extension, have putenv("VAR") behave as unsetenv("VAR")Rich Felker2012-10-211-5/+5
| | | | | | the behavior of putenv is left undefined if the argument does not contain an equal sign, but traditional implementations behave this way and gnulib replaces putenv if it doesn't do this.
* initial check-in, version 0.5.0 v0.5.0Rich Felker2011-02-121-0/+59