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-rw-r--r--inet/rexec.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/inet/rexec.c b/inet/rexec.c
index 6ba7d20f71..897030e6b9 100644
--- a/inet/rexec.c
+++ b/inet/rexec.c
@@ -64,7 +64,8 @@ rexec(ahost, rport, name, pass, cmd, fd2p)
 	hstbuflen = 1024;
 	hsttmpbuf = __alloca (hstbuflen);
 	while (__gethostbyname_r (*ahost, &hostbuf, hsttmpbuf, hstbuflen,
-				  &hp, &herr) != 0)
+				  &hp, &herr) != 0
+	       || hp == NULL)
 	  if (herr != NETDB_INTERNAL || errno != ERANGE)
 	    {
 	      __set_h_errno (herr);