From 4e4ae2f82caacd03fe936e5553c2e8f70ee109e9 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 11 Oct 2012 02:42:18 +0200
Subject: [PATCH] sha: change loop condition to be tighter.
This makes no change to the way the code functions, but should make
it easier for static analyzers to see the valid range for i
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavutil/sha.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavutil/sha.c b/libavutil/sha.c
index 7194d43204e..c5d13c127a5 100644
--- a/libavutil/sha.c
+++ b/libavutil/sha.c
@@ -210,7 +210,7 @@ static void sha256_transform(uint32_t *state, const uint8_t buffer[64])
a = T1 + T2;
}
#else
- for (i = 0; i < 16;) {
+ for (i = 0; i < 16 - 7;) {
ROUND256_0_TO_15(a, b, c, d, e, f, g, h);
ROUND256_0_TO_15(h, a, b, c, d, e, f, g);
ROUND256_0_TO_15(g, h, a, b, c, d, e, f);
@@ -221,7 +221,7 @@ static void sha256_transform(uint32_t *state, const uint8_t buffer[64])
ROUND256_0_TO_15(b, c, d, e, f, g, h, a);
}
- for (; i < 64;) {
+ for (; i < 64 - 7;) {
ROUND256_16_TO_63(a, b, c, d, e, f, g, h);
ROUND256_16_TO_63(h, a, b, c, d, e, f, g);
ROUND256_16_TO_63(g, h, a, b, c, d, e, f);
--
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