Added some comments

FossilOrigin-Name: 80bd78289b5a1670541755108f62e253c9c1e32274c7ca284b5421d72c1b5ef1

src/capwap/sock_cmpaddr.c

@@ -16,6 +16,12 @@
 
 */
 
+
+/**
+ *@file
+ *@brief Implementation of sock_cmpaddrs
+ */
+
 #include <stdint.h>
 #include <string.h>
 #include <netinet/in.h>
@@ -25,8 +31,12 @@
 
 /**
  * compare two sockaddrs
- * 
+ * @param addr1 first address to compare
+ * @param addr2 second address to compare
+ * @cmpport if not zero, also compare the port
  * @return 0 if both addriesses are equal
+ * Currently there are there are only AF_INET and AF_INET6 
+ * suppoorted
  */
 
 int sock_cmpaddr(const struct sockaddr *addr1, const struct sockaddr *addr2,int cmpport)
@@ -73,4 +83,3 @@ int sock_cmpaddr(const struct sockaddr *addr1, const struct sockaddr *addr2,int
 }
 
 
-