From: Usaku NAKAMURA <redmine@...>
Date: 2011-06-29T15:53:04+09:00
Subject: [ruby-core:37657] [Ruby 1.9 - Bug #1679][Closed] rb_w32_getenv() invalidates previous environment pointers


Issue #1679 has been updated by Usaku NAKAMURA.

Status changed from Assigned to Closed


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Bug #1679: rb_w32_getenv() invalidates previous environment pointers
http://redmine.ruby-lang.org/issues/1679

Author: Jarek Jurasz
Status: Closed
Priority: Normal
Assignee: Akio Tajima
Category: core
Target version: 1.9.3
ruby -v: ruby 1.8.6 (2007-03-13 patchlevel 0) [i386-mswin32]


=begin
 On Windows turning on page heap (gflags -p /enable ruby.exe /full) revealed that environment pointers returned by rb_w32_getenv() get invalidated on the next call to this function due to the freeing of the environment buffer.
 In particular getenv("RUBYLIB_PREFIX") in rubylib_mangle() frees getenv("RUBYLIB") fetched in ruby_init_loadpath(). This bug is also present in ruby 1.9.1-p129.
 
 The workaround - the RTL version of getenv() - worked fine for me so far.
=end



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