mount_nfs(8) rejects certain hostnames

["Frank W. Josellis" <frank@xxxxxxxxxxxxxxxxxxxxx>]

It is currently not possible to mount a NFS file system if the first 
character in the remote server's hostname is a digit. For example,

mount -t nfs 6pack:/ /mnt

will fail and issue a warning about bad net address 6pack. There is a 
patch below which might be helpful for fixing this.

Regards,
Frank Josellis


--- patch begins here ---
--- sbin/mount_nfs/mount_nfs.c.orig	2006-03-27 18:18:13.000000000 +0200
+++ sbin/mount_nfs/mount_nfs.c	2008-02-16 18:29:13.000000000 +0100
@@ -559,6 +559,7 @@
 {
 	struct hostent *hp;
 	struct sockaddr_in saddr;
+	struct in_addr iaddr;
 	enum tryret ret;
 	int speclen, remoteerr;
 	char *hostp, *delimp, *errstr;
@@ -630,12 +631,16 @@
 			_res.retrans = 3;
 			break;
 		}
-		if (isdigit(*hostp)) {
-			saddr.sin_addr.s_addr = inet_addr(hostp);
-			if (saddr.sin_addr.s_addr == INADDR_NONE) {
-				warnx("bad net address %s", hostp);
-				haserror = EAI_FAIL;
-			}
+		if (inet_aton(hostp, &iaddr)) {
+		  if ((hp = gethostbyaddr((char *) &iaddr, 
+					  sizeof(iaddr), 
+					  AF_INET)) != NULL) {
+		    	memmove(&saddr.sin_addr, hp->h_addr, 
+			    MIN(hp->h_length, (int)sizeof(saddr.sin_addr)));
+		  } else {
+		    warnx("bad net address %s", hostp);
+		    haserror = EAI_FAIL;
+		  }
 		} else if ((hp = gethostbyname(hostp)) != NULL) {
 			memmove(&saddr.sin_addr, hp->h_addr, 
 			    MIN(hp->h_length, (int)sizeof(saddr.sin_addr)));
--- patch ends here ---