2 files changed, 4 insertions, 1 deletions

diff --git a/lib/libc/net/gethostbydns.c b/lib/libc/net/gethostbydns.c
index 1d17a0a16533..c7f37c278ce7 100644
--- a/lib/libc/net/gethostbydns.c
+++ b/lib/libc/net/gethostbydns.c
@@ -389,6 +389,7 @@ gethostanswer(answer, anslen, qname, qtype)
 				buflen -= nn;
 			}
 
+			buflen -= sizeof(align) - ((u_long)bp % sizeof(align));
 			bp += sizeof(align) - ((u_long)bp % sizeof(align));
 
 			if (bp + n >= &hostbuf[sizeof hostbuf]) {
diff --git a/lib/libc/net/getnetbydns.c b/lib/libc/net/getnetbydns.c
index 65d9d2de96d8..26601f858e24 100644
--- a/lib/libc/net/getnetbydns.c
+++ b/lib/libc/net/getnetbydns.c
@@ -174,7 +174,9 @@ static	char *net_aliases[MAXALIASES], netbuf[PACKETSZ];
 			}
 			cp += n; 
 			*ap++ = bp;
-			bp += strlen(bp) + 1;
+			n = strlen(bp) + 1;
+			bp += n;
+			buflen -= n;
 			net_entry.n_addrtype =
 				(class == C_IN) ? AF_INET : AF_UNSPEC;
 			haveanswer++;