fixed new warning with previous iOS patch

(cherry picked from commit 70676a01eb16a8221fd5adec6aefaf36590edada)

diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c
index b3deb5a0a1d93a13dedd24138147191792fb4899..56737acef80faa1fe19098e9a2d6b88f66786d9e 100644 (file)
--- a/bin/dig/dighost.c
+++ b/bin/dig/dighost.c
@@ -447,7 +447,7 @@ hex_dump(isc_buffer_t *b) {
  */
 static isc_result_t
 append(const char *text, size_t len, char **p, char *end) {
-       if (len > end - *p)
+       if (*p + len > end)
                return (ISC_R_NOSPACE);
        memmove(*p, text, len);
        *p += len;