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authorSiddhesh Poyarekar <siddhesh@redhat.com>2014-12-16 19:40:47 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2014-12-16 19:40:47 +0530
commit0cd8552045aeb0537b4f1ab5d1b30ada8ae50076 (patch)
treec466784133086fcb0337f10e95a56cba41d86eec /resolv/res_send.c
parenta0d424ef9d7fc34f7d1a516f38c8efb1e8692a03 (diff)
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Fix the 'array subscript is above array bounds' warning correctly
Use DIAG_IGNORE_NEEDS_COMMENT instead since the compiler should have
seen that NS never goes beyond MAXNS.
Diffstat (limited to 'resolv/res_send.c')
-rw-r--r--resolv/res_send.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/resolv/res_send.c b/resolv/res_send.c
index 5a9882c6ad..c35fb66bda 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -429,9 +429,15 @@ __libc_res_nsend(res_state statp, const u_char *buf, int buflen,
 				while (ns < MAXNS
 				       && EXT(statp).nsmap[ns] != MAXNS)
 					ns++;
-				if (ns >= MAXNS)
+				if (ns == MAXNS)
 					break;
+				/* NS never exceeds MAXNS, but gcc 4.9 somehow
+				   does not see this.  */
+				DIAG_PUSH_NEEDS_COMMENT;
+				DIAG_IGNORE_NEEDS_COMMENT (4.9,
+							   "-Warray-bounds");
 				EXT(statp).nsmap[ns] = n;
+				DIAG_POP_NEEDS_COMMENT;
 				map[n] = ns++;
 			}
 		EXT(statp).nscount = n;