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Use 64K buffers for TOKEN_GROUPS

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A user token can be up to 64K in size.  Using 32K buffers for TOKEN_GROUPS
may be insufficient.

	* uinfo.cc (get_logon_sid): Use 64K buffers for the TOKEN_GROUPS
	array.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2016-03-23 17:42:04 +01:00
parent 155a1ec5fb
commit fc504453fd
1 changed files with 3 additions and 3 deletions
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6
winsup/cygwin/uinfo.cc
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@@ -1462,12 +1462,12 @@ get_logon_sid ()
NTSTATUS status;
ULONG size;
tmp_pathbuf tp;
PTOKEN_GROUPS groups = (PTOKEN_GROUPS) tp.c_get ();
PTOKEN_GROUPS groups = (PTOKEN_GROUPS) tp.w_get ();
status = NtQueryInformationToken (hProcToken, TokenGroups, groups,
NT_MAX_PATH, &size);
2 * NT_MAX_PATH, &size);
if (!NT_SUCCESS (status))
debug_printf ("NtQueryInformationToken() %y", status);
debug_printf ("NtQueryInformationToken (TokenGroups) %y", status);
else
{
for (DWORD pg = 0; pg < groups->GroupCount; ++pg)