md5: supress some compiler warnings.

md5.c: In function ‘MD5Final’:
md5.c:154:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
md5.c:155:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]

There is an md5 unit test and it still passes.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@364462 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/md5.c b/main/md5.c
index 849a265..5e79729 100644 (file)
--- a/main/md5.c
+++ b/main/md5.c
@@ -123,6 +123,7 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
 {
        unsigned count;
        unsigned char *p;
 {
        unsigned count;
        unsigned char *p;

+       uint32_t *in_buf;

 
        /* Compute number of bytes mod 64 */
        count = (ctx->bits[0] >> 3) & 0x3F;
 
        /* Compute number of bytes mod 64 */
        count = (ctx->bits[0] >> 3) & 0x3F;

@@ -151,8 +152,9 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
        byteReverse(ctx->in, 14);
 
        /* Append length in bits and transform */
        byteReverse(ctx->in, 14);
 
        /* Append length in bits and transform */

-       ((uint32_t *) ctx->in)[14] = ctx->bits[0];
-       ((uint32_t *) ctx->in)[15] = ctx->bits[1];
+       in_buf = (uint32_t *) ctx->in;
+       in_buf[14] = ctx->bits[0];
+       in_buf[15] = ctx->bits[1];

 
        MD5Transform(ctx->buf, (uint32_t *) ctx->in);
        byteReverse((unsigned char *) ctx->buf, 4);
 
        MD5Transform(ctx->buf, (uint32_t *) ctx->in);
        byteReverse((unsigned char *) ctx->buf, 4);