Document that ethers_aton returns NULL for invalid addresses.

Suggested by and ok claudio@, ok jmc@

1 files changed, 4 insertions, 2 deletions

diff --git a/src/lib/libc/net/ethers.3 b/src/lib/libc/net/ethers.3
index 435a52696a..aa7249dc47 100644
--- a/src/lib/libc/net/ethers.3
+++ b/src/lib/libc/net/ethers.3
@@ -1,8 +1,8 @@
-.\"     $OpenBSD: ethers.3,v 1.19 2007/05/31 19:19:30 jmc Exp $
+.\"     $OpenBSD: ethers.3,v 1.20 2008/12/07 10:10:33 weerd Exp $
 .\"
 .\" Written by roland@frob.com.  Public domain.
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: December 7 2008 $
 .Dt ETHERS 3
 .Os
 .Sh NAME
@@ -53,6 +53,8 @@ converts an
 string of the same form and to a structure
 containing the 6 octets of the address.
 It returns a pointer to a static structure that is reused for each call.
+.Fn ether_aton
+will return NULL if the string does not represent a valid address.
 .Pp
 The
 .Fn ether_ntohost