core: Use port ranges to avoid OOM with bad inputs (#2859)

* fix OOM issue caught by fuzzing

* use ParsedAddress as the struct name for the result of ParseNetworkAddress

* simplify code using the ParsedAddress type

* minor cleanups

1 files changed, 1 insertions, 1 deletions

diff --git a/listeners_fuzz.go b/listeners_fuzz.go
index 98465fd..826c57e 100644
--- a/listeners_fuzz.go
+++ b/listeners_fuzz.go
@@ -18,7 +18,7 @@
 package caddy
 
 func FuzzParseNetworkAddress(data []byte) int {
-	_, _, err := ParseNetworkAddress(string(data))
+	_, err := ParseNetworkAddress(string(data))
 	if err != nil {
 		return 0
 	}