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Fix buffer size error handling in gethostname. 

* net.cc (cygwin_gethostname): Fix buffer size error handling.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Renato Silva 2015-03-31 21:18:46 +02:00 committed by Corinna Vinschen
parent 46d2802c27
commit 2cf6edf4ef
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2 changed files with 8 additions and 1 deletions
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4
winsup/cygwin/ChangeLog
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@ -1,3 +1,7 @@
2015-03-31 Renato Silva <br.renatosilva@gmail.com>
* net.cc (cygwin_gethostname): Fix buffer size error handling.
2015-03-31 Corinna Vinschen <corinna@vinschen.de> 2015-03-31 Corinna Vinschen <corinna@vinschen.de>
* uinfo.cc (pwdgrp::fetch_account_from_windows): Don't allow fully * uinfo.cc (pwdgrp::fetch_account_from_windows): Don't allow fully

3
winsup/cygwin/net.cc
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@ -1076,6 +1076,9 @@ cygwin_gethostname (char *name, size_t len)
if (!GetComputerNameExA (ComputerNameDnsFullyQualified, name, if (!GetComputerNameExA (ComputerNameDnsFullyQualified, name,
&local_len)) &local_len))
{ {
if (GetLastError () == ERROR_MORE_DATA)
set_errno (ENAMETOOLONG);
else
set_winsock_errno (); set_winsock_errno ();
__leave; __leave;
} }