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MFC r240412:
authoremaste <emaste@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 18 Sep 2012 13:13:28 +0000 (13:13 +0000)
committeremaste <emaste@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 18 Sep 2012 13:13:28 +0000 (13:13 +0000)
commitabcaa2e4627d2f979ad0f6e15863bbc9cf4f7e18
treecf734003bfcfda7eba0b447f3546d536851af68b
parent6c4f1d9e131457fa4881e792eef61d42d02c0da9
MFC r240412:

  According to a clarification at http://austingroupbugs.net/view.php?id=503
  ptsname may set errno, so avoid saving and restoring errno across the
  function.

PR: standards/171572
Approved by: re
Sponsored by: ADARA Networks

git-svn-id: svn://svn.freebsd.org/base/releng/9.1@240648 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
lib/libc/stdlib/ptsname.3
lib/libc/stdlib/ptsname.c