From 50ce447ef9224030c2a770c318d747f7b08d966c Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@zip.com.au>
Date: Fri, 5 Oct 2012 12:11:33 +1000
Subject:  - [umac.c] Enforce allowed umac output sizes.  From djm@.

---
 umac.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'umac.c')

diff --git a/umac.c b/umac.c
index e373de5b..0567c37f 100644
--- a/umac.c
+++ b/umac.c
@@ -55,6 +55,12 @@
 #ifndef UMAC_OUTPUT_LEN
 #define UMAC_OUTPUT_LEN     8  /* Alowable: 4, 8, 12, 16                  */
 #endif
+
+#if UMAC_OUTPUT_LEN != 4 && UMAC_OUTPUT_LEN != 8 && \
+    UMAC_OUTPUT_LEN != 12 && UMAC_OUTPUT_LEN != 16
+# error UMAC_OUTPUT_LEN must be defined to 4, 8, 12 or 16
+#endif
+
 /* #define FORCE_C_ONLY        1  ANSI C and 64-bit integers req'd        */
 /* #define AES_IMPLEMENTAION   1  1 = OpenSSL, 2 = Barreto, 3 = Gladman   */
 /* #define SSE2                0  Is SSE2 is available?                   */
-- 
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