[co]fb128.c: fix "n=0" bug.

[oweals/openssl.git] / crypto / modes / ofb128.c

diff --git a/crypto/modes/ofb128.c b/crypto/modes/ofb128.c
index ae264c832c5fefba52f611d2fe265917a383dc24..c732e2ec58e3a138cdcd40842cc64f592f899ed0 100644 (file)
--- a/crypto/modes/ofb128.c
+++ b/crypto/modes/ofb128.c
@@ -48,7 +48,7 @@
  *
  */
 
-#include <stddef.h>
+#include "modes.h"
 #include <string.h>
 
 #ifndef MODES_DEBUG
@@ -58,8 +58,6 @@
 #endif
 #include <assert.h>
 
-#include "modes.h"
-
 #define STRICT_ALIGNMENT
 #if defined(__i386) || defined(__i386__) || \
     defined(__x86_64) || defined(__x86_64__) || \
@@ -75,7 +73,7 @@
 void CRYPTO_ofb128_encrypt(const unsigned char *in, unsigned char *out,
                        size_t len, const void *key,
                        unsigned char ivec[16], int *num,
-                       block_f block)
+                       block128_f block)
 {
        unsigned int n;
        size_t l=0;
@@ -97,14 +95,14 @@ void CRYPTO_ofb128_encrypt(const unsigned char *in, unsigned char *out,
 #endif
                while (len>=16) {
                        (*block)(ivec, ivec, key);
-                       for (n=0; n<16; n+=sizeof(size_t))
+                       for (; n<16; n+=sizeof(size_t))
                                *(size_t*)(out+n) =
                                *(size_t*)(in+n) ^ *(size_t*)(ivec+n);
                        len -= 16;
                        out += 16;
                        in  += 16;
+                       n = 0;
                }
-               n = 0;
                if (len) {
                        (*block)(ivec, ivec, key);
                        while (len--) {