diff --git a/scripts/oe-git-proxy b/scripts/oe-git-proxy
index 4873455..d2e9f92 100755
--- a/scripts/oe-git-proxy
+++ b/scripts/oe-git-proxy
@@ -53,6 +53,7 @@
 
 	# Determine the mask bitlength
 	BITS=${CIDR##*/}
+	[ "$BITS" != "$CIDR" ] || BITS=32
 	if [ -z "$BITS" ]; then
 		return 1
 	fi
@@ -112,16 +113,23 @@
 # Proxy is necessary, determine protocol, server, and port
 PROTO=$(echo $ALL_PROXY | sed -e 's/\([^:]*\):\/\/.*/\1/')
 PROXY=$(echo $ALL_PROXY | sed -e 's/.*:\/\/\([^:]*\).*/\1/')
-PORT=$(echo $ALL_PROXY | sed -e 's/.*:\([0-9]*\)\/?$/\1/')
+# For backwards compatibility, this allows the port number to be followed by /?
+# in addition to the customary optional /
+PORT=$(echo $ALL_PROXY | sed -e 's/.*:\([0-9]*\)\(\/?\?\)\?$/\1/')
 if [ "$PORT" = "$ALL_PROXY" ]; then
 	PORT=""
 fi
 
-if [ "$PROTO" = "socks" ]; then
+if [ "$PROTO" = "socks" ] || [ "$PROTO" = "socks4a" ]; then
 	if [ -z "$PORT" ]; then
 		PORT="1080"
 	fi
 	METHOD="SOCKS4A:$PROXY:$1:$2,socksport=$PORT"
+elif [ "$PROTO" = "socks4" ]; then
+	if [ -z "$PORT" ]; then
+		PORT="1080"
+	fi
+	METHOD="SOCKS4:$PROXY:$1:$2,socksport=$PORT"
 else
 	# Assume PROXY (http, https, etc)
 	if [ -z "$PORT" ]; then