From a823bc7bd268975d035582e84d3d96149c9f231e Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Tue, 20 Dec 2022 22:48:43 +0000
Subject: __ntapi_tt_fork(): changed signature: record cid, return native
 status code.

---
 src/process/ntapi_tt_fork_v1.c | 44 ++++++++++++++++++++++++++++--------------
 1 file changed, 29 insertions(+), 15 deletions(-)

(limited to 'src/process/ntapi_tt_fork_v1.c')

diff --git a/src/process/ntapi_tt_fork_v1.c b/src/process/ntapi_tt_fork_v1.c
index d017cf0..7662b72 100644
--- a/src/process/ntapi_tt_fork_v1.c
+++ b/src/process/ntapi_tt_fork_v1.c
@@ -40,7 +40,7 @@ static intptr_t __tt_fork_cancel(void * hprocess,int32_t status)
 {
 	__ntapi->zw_terminate_process(hprocess, status);
 	__ntapi->zw_close(hprocess);
-	return (intptr_t)(-1);
+	return status;
 }
 
 __attr_protected__
@@ -62,6 +62,9 @@ intptr_t __fastcall __tt_fork_impl_v1(
 	nt_client_id			cid;
 	nt_large_integer		timeout;
 
+	cid.process_id = 0;
+	cid.thread_id  = 0;
+
 	hprocess = 0;
 	hthread  = 0;
 
@@ -78,7 +81,7 @@ intptr_t __fastcall __tt_fork_impl_v1(
 			&oa,
 			NT_CURRENT_PROCESS_HANDLE,
 			1,0,0,0)))
-		return (intptr_t)(-1);
+		return status;
 
 	if ((status = __ntapi->zw_query_information_process(
 			hprocess,
@@ -129,7 +132,6 @@ intptr_t __fastcall __tt_fork_impl_v1(
 				0, 0, &timeout)))
 			return __tt_fork_cancel(hprocess,status);
 
-
 	if ((status = __ntapi->zw_create_thread(
 			&hthread,
 			NT_THREAD_ALL_ACCESS,
@@ -141,21 +143,25 @@ intptr_t __fastcall __tt_fork_impl_v1(
 	if (cid.process_id > 0) {
 		__internals->hany[0] = hprocess;
 		__internals->hany[1] = hthread;
+		__internals->hany[2] = (void *)cid.process_id;
+		__internals->hany[3] = (void *)cid.thread_id;
 	} else {
 		__internals->hany[0] = 0;
 		__internals->hany[1] = 0;
+		__internals->hany[2] = 0;
+		__internals->hany[3] = 0;
 	}
 
 	/* hoppla */
-	return (int32_t)cid.process_id;
+	return NT_STATUS_SUCCESS;
 }
 
-intptr_t __fastcall __ntapi_tt_fork_v1(
+int32_t __fastcall __ntapi_tt_fork_v1(
 	__out	void **		hprocess,
-	__out	void **		hthread)
+	__out	void **		hthread,
+	__out	nt_cid *	cid)
 {
 	int32_t			status;
-	intptr_t		pid;
 	nt_large_integer	timeout;
 	void **			hport_session;
 	void *			htty_connected;
@@ -172,24 +178,32 @@ intptr_t __fastcall __ntapi_tt_fork_v1(
 			&(nt_timeout){{0,0}});
 
 	if (hport_session && *hport_session) {
-		if (__ntapi_tt_create_inheritable_event(
+		status = __ntapi_tt_create_inheritable_event(
 				&htty_connected,
 				NT_NOTIFICATION_EVENT,
-				NT_EVENT_NOT_SIGNALED)) {
+				NT_EVENT_NOT_SIGNALED);
+
+		if (status) {
 			at_store(&__internals->hlock,0);
-			return (intptr_t)(-1);
+			return status;
 		}
 	}
 
-	pid = __tt_fork_v1();
+	if ((status = __tt_fork_v1())) {
+		at_store(&__internals->hlock,0);
+		return status;
+	}
 
 	*hprocess = __internals->hany[0];
 	*hthread  = __internals->hany[1];
 
+	cid->process_id = (uintptr_t)__internals->hany[2];
+	cid->thread_id  = (uintptr_t)__internals->hany[3];
+
 	at_store(&__internals->hlock,0);
 
 	if (hport_session && *hport_session) {
-		if (pid == 0) {
+		if (cid->process_id == 0) {
 			if ((status = __ntapi->tty_connect(
 					hport_session,
 					__internals->subsystem->base_named_objects,
@@ -205,7 +219,7 @@ intptr_t __fastcall __ntapi_tt_fork_v1(
 				htty_connected,
 				0);
 
-		} else if (pid > 0) {
+		} else {
 			status = __ntapi->zw_wait_for_single_object(
 				htty_connected,
 				NT_SYNC_NON_ALERTABLE,
@@ -216,11 +230,11 @@ intptr_t __fastcall __ntapi_tt_fork_v1(
 						htty_connected,
 						NT_SYNC_NON_ALERTABLE,
 						0)))
-					pid = __tt_fork_cancel(*hprocess,status);
+					status = __tt_fork_cancel(*hprocess,status);
 		}
 
 		__ntapi->zw_close(htty_connected);
 	}
 
-	return pid;
+	return status;
 }
-- 
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