more descriptive errors to match reference. final commit :)

1 files changed, 4 insertions, 4 deletions

diff --git a/pkg/ipstack/ipstack.go b/pkg/ipstack/ipstack.go
index d3178b8..fe8d743 100644
--- a/pkg/ipstack/ipstack.go
+++ b/pkg/ipstack/ipstack.go
@@ -330,7 +330,7 @@ func SendIP(src *netip.Addr, dest *Neighbor, protocolNum int, message []byte, de
 	// check if the interface is up
 	iface, err := GetInterfaceByName(dest.Name)
 	if !iface.State {
-		return -1, errors.Errorf("error SEND: %s is down", iface.Name)
+		return 0, errors.Errorf("error SEND: %s is down", iface.Name)
 	}
 	// if the header is nil, create a new one
 	if hdr == nil {
@@ -371,7 +371,7 @@ func SendIP(src *netip.Addr, dest *Neighbor, protocolNum int, message []byte, de
 	// Assemble the header into a byte array
 	headerBytes, err := hdr.Marshal()
 	if err != nil {
-		return -1, err
+		return 0, err
 	}
 
 	// Compute the checksum (see below)
@@ -397,7 +397,7 @@ func SendIP(src *netip.Addr, dest *Neighbor, protocolNum int, message []byte, de
 	bytesWritten, err := iface.Socket.WriteToUDP(bytesToSend, sendAddr)
 	if err != nil {
 		fmt.Println("Error writing to UDP socket")
-		return -1, errors.WithMessage(err, "Error writing to UDP socket")
+		return 0, errors.WithMessage(err, "Error writing to UDP socket")
 	}
 
 	return bytesWritten, nil
@@ -1005,4 +1005,4 @@ func CleanUp() {
 	routingTable = make(map[netip.Prefix]Hop)
 
 	time.Sleep(5 * time.Millisecond)
-}
\ No newline at end of file
+}