sbtools: fix a few memcpy with overlapping src/dst, fix a parsing bug (would access one byte paste the end of the buffer)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29868 a1c6a512-1295-4272-9138-f99709370657

utils/sbtools/aes128.c

@@ -155,7 +155,7 @@ void EncryptAES(byte *msg, byte *key, byte *c) {
   expand_key(key,keys);
   
   // First Round
-  memcpy(c, msg, 16);
+  memmove(c, msg, 16);
   xor_round_key(c,keys,0);
 
   // Middle rounds

utils/sbtools/elftosb.c

@@ -307,7 +307,7 @@ static void parse_identifier(char **ptr, char *end, struct lexem_t *lexem)
 static void next_lexem(char **ptr, char *end, struct lexem_t *lexem)
 {
     #define ret_simple(t, advance) ({(*ptr) += advance; lexem->type = t; return;})
-    while(true)
+    while(*ptr != end)
     {
         /* skip whitespace */
         if(**ptr == ' ' || **ptr == '\t' || **ptr == '\n' || **ptr == '\r')

utils/sbtools/sha1.c

@@ -103,7 +103,7 @@ void sha_1_block(struct sha_1_params_t *params, uint32_t cur_hash[5], byte *data
 
     #define w params->w
 
-    memcpy(w, data, 64);
+    memmove(w, data, 64);
     for(int i = 0; i < 16; i++)
         byte_swap32(&w[i]);