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Cygwin: pty: Change how to determine if running as service or not.

This commit is contained in:
Takashi Yano 2019-11-06 21:08:43 +09:00 committed by Ken Brown
parent 7d4221d00a
commit 32db005b18
1 changed files with 3 additions and 14 deletions
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17
winsup/cygwin/fhandler_tty.cc
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@ -3094,22 +3094,11 @@ pty_master_fwd_thread (VOID *arg)
the helper process is running as privileged user while
slave process is not. This function is used to determine
if the process is running as a srvice or not. */
static bool
inline static bool
is_running_as_service (void)
{
DWORD dwSize = 0;
PTOKEN_GROUPS pGroupInfo;
tmp_pathbuf tp;
pGroupInfo = (PTOKEN_GROUPS) tp.w_get ();
NtQueryInformationToken (hProcToken, TokenGroups, pGroupInfo,
2 * NT_MAX_PATH, &dwSize);
for (DWORD i=0; i<pGroupInfo->GroupCount; i++)
if (RtlEqualSid (well_known_service_sid, pGroupInfo->Groups[i].Sid))
return true;
for (DWORD i=0; i<pGroupInfo->GroupCount; i++)
if (RtlEqualSid (well_known_interactive_sid, pGroupInfo->Groups[i].Sid))
return false;
return true;
return check_token_membership (well_known_service_sid)
|| cygheap->user.saved_sid () == well_known_system_sid;
}
bool