1 files changed, 9 insertions, 9 deletions

diff --git a/include/netdb.h b/include/netdb.h
index a106338a1802..90497d93fae4 100644
--- a/include/netdb.h
+++ b/include/netdb.h
@@ -159,24 +159,24 @@ struct addrinfo {
 #define	NO_ADDRESS	NO_DATA		/* no address, look for MX record */
 
 /*
- * Error return codes from getaddrinfo()
+ * Error return codes from gai_strerror(3), see RFC 3493.
  */
 #if 0
-/* obsoleted */
+/* Obsoleted on RFC 2553bis-02 */
 #define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
 #endif
-#define	EAI_AGAIN	 2	/* temporary failure in name resolution */
-#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
+#define	EAI_AGAIN	 2	/* name could not be resolved at this time */
+#define	EAI_BADFLAGS	 3	/* flags parameter had an invalid value */
 #define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
-#define	EAI_FAMILY	 5	/* ai_family not supported */
+#define	EAI_FAMILY	 5	/* address family was recognized */
 #define	EAI_MEMORY	 6	/* memory allocation failure */
 #if 0
-/* obsoleted */
+/* Obsoleted on RFC 2553bis-02 */
 #define	EAI_NODATA	 7	/* no address associated with hostname */
 #endif
-#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
-#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
-#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
+#define	EAI_NONAME	 8	/* name does not resolve */
+#define	EAI_SERVICE	 9	/* service not recognized for socket type */
+#define	EAI_SOCKTYPE	10	/* intended socket type was not recognized */
 #define	EAI_SYSTEM	11	/* system error returned in errno */
 #define	EAI_BADHINTS	12	/* invalid value for hints */
 #define	EAI_PROTOCOL	13	/* resolved protocol is unknown */