Skip the trailing . if it exists on the FQDN.

1 files changed, 4 insertions, 1 deletions

diff --git a/dhcp.c b/dhcp.c
index 0f8a1724..6c93c791 100644
--- a/dhcp.c
+++ b/dhcp.c
@@ -712,8 +712,11 @@ encode_rfc1035(const char *src, uint8_t *dst, size_t len)
 		if (*c == '\0')
 			break;
 		if (*c == '.') {
+			/* Skip the trailing . */
+			if (c == src + len - 1)
+				break;
 			*lp = p - lp - 1;
-			if (*lp == 0)
+			if (*lp == '\0')
 				return p - dst;
 			lp = p++;
 		} else