X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=sshcrcda.c;h=8d77cbb6052cf7e76256c6c628be7c8ec7a857dd;hb=f004bcca17a789356c32527a396b68b71a773db2;hp=7fb5767ce0a49e20bd09078501e3094f1203a05e;hpb=d36a4c3685f17057ba2c80ac471c1284b615469f;p=PuTTY.git

diff --git a/sshcrcda.c b/sshcrcda.c
index 7fb5767c..8d77cbb6 100644
--- a/sshcrcda.c
+++ b/sshcrcda.c
@@ -42,12 +42,6 @@ typedef unsigned short uint16;
 
 #define HASH_MINBLOCKS	(7*SSH_BLOCKSIZE)
 
-#define GET_32BIT_MSB_FIRST(cp) \
-  (((unsigned long)(unsigned char)(cp)[0] << 24) | \
-  ((unsigned long)(unsigned char)(cp)[1] << 16) | \
-  ((unsigned long)(unsigned char)(cp)[2] << 8) | \
-  ((unsigned long)(unsigned char)(cp)[3]))
-
 /* Hash function (Input keys are cipher results) */
 #define HASH(x)		GET_32BIT_MSB_FIRST(x)
 
@@ -71,7 +65,12 @@ void *crcda_make_context(void)
 
 void crcda_free_context(void *handle)
 {
-    sfree(handle);
+    struct crcda_ctx *ctx = (struct crcda_ctx *)handle;
+    if (ctx) {
+	sfree(ctx->h);
+	ctx->h = NULL;
+	sfree(ctx);
+    }
 }
 
 static void crc_update(uint32 *a, void *b)