Replace uinptr with int64 when returning lengths

This is in accordance with newer parts of the standard library.

PiperOrigin-RevId: 263449916

2 files changed, 8 insertions, 8 deletions

diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go
index 7c12a6092..c50f5abb3 100644
--- a/pkg/tcpip/transport/udp/endpoint.go
+++ b/pkg/tcpip/transport/udp/endpoint.go
@@ -315,7 +315,7 @@ func (e *endpoint) connectRoute(nicid tcpip.NICID, addr tcpip.FullAddress, netPr
 
 // Write writes data to the endpoint's peer. This method does not block
 // if the data cannot be written.
-func (e *endpoint) Write(p tcpip.Payload, opts tcpip.WriteOptions) (uintptr, <-chan struct{}, *tcpip.Error) {
+func (e *endpoint) Write(p tcpip.Payload, opts tcpip.WriteOptions) (int64, <-chan struct{}, *tcpip.Error) {
 	// MSG_MORE is unimplemented. (This also means that MSG_EOR is a no-op.)
 	if opts.More {
 		return 0, nil, tcpip.ErrInvalidOptionValue
@@ -421,11 +421,11 @@ func (e *endpoint) Write(p tcpip.Payload, opts tcpip.WriteOptions) (uintptr, <-c
 	if err := sendUDP(route, buffer.View(v).ToVectorisedView(), e.id.LocalPort, dstPort, ttl); err != nil {
 		return 0, nil, err
 	}
-	return uintptr(len(v)), nil, nil
+	return int64(len(v)), nil, nil
 }
 
 // Peek only returns data from a single datagram, so do nothing here.
-func (e *endpoint) Peek([][]byte) (uintptr, tcpip.ControlMessages, *tcpip.Error) {
+func (e *endpoint) Peek([][]byte) (int64, tcpip.ControlMessages, *tcpip.Error) {
 	return 0, tcpip.ControlMessages{}, nil
 }
 
diff --git a/pkg/tcpip/transport/udp/udp_test.go b/pkg/tcpip/transport/udp/udp_test.go
index 56c285f88..26c3241e3 100644
--- a/pkg/tcpip/transport/udp/udp_test.go
+++ b/pkg/tcpip/transport/udp/udp_test.go
@@ -567,7 +567,7 @@ func testV4Write(c *testContext) uint16 {
 	if err != nil {
 		c.t.Fatalf("Write failed: %v", err)
 	}
-	if n != uintptr(len(payload)) {
+	if n != int64(len(payload)) {
 		c.t.Fatalf("Bad number of bytes written: got %v, want %v", n, len(payload))
 	}
 
@@ -597,7 +597,7 @@ func testV6Write(c *testContext) uint16 {
 	if err != nil {
 		c.t.Fatalf("Write failed: %v", err)
 	}
-	if n != uintptr(len(payload)) {
+	if n != int64(len(payload)) {
 		c.t.Fatalf("Bad number of bytes written: got %v, want %v", n, len(payload))
 	}
 
@@ -754,7 +754,7 @@ func TestV6WriteOnConnected(t *testing.T) {
 	if err != nil {
 		c.t.Fatalf("Write failed: %v", err)
 	}
-	if n != uintptr(len(payload)) {
+	if n != int64(len(payload)) {
 		c.t.Fatalf("Bad number of bytes written: got %v, want %v", n, len(payload))
 	}
 
@@ -790,7 +790,7 @@ func TestV4WriteOnConnected(t *testing.T) {
 	if err != nil {
 		c.t.Fatalf("Write failed: %v", err)
 	}
-	if n != uintptr(len(payload)) {
+	if n != int64(len(payload)) {
 		c.t.Fatalf("Bad number of bytes written: got %v, want %v", n, len(payload))
 	}
 
@@ -948,7 +948,7 @@ func TestTTL(t *testing.T) {
 				if err != nil {
 					c.t.Fatalf("Write failed: %v", err)
 				}
-				if n != uintptr(len(payload)) {
+				if n != int64(len(payload)) {
 					c.t.Fatalf("got c.ep.Write(...) = %d, want = %d", n, len(payload))
 				}