Run Clang's bugprone-narrowing-conversions

Fairly minor issue.

src/hashes.c

@@ -773,7 +773,7 @@ int hashes_init_stage1 (hashcat_ctx_t *hashcat_ctx)
 
   if ((user_options->username == true) || (hashconfig->opts_type & OPTS_TYPE_HASH_COPY) || (hashconfig->opts_type & OPTS_TYPE_HASH_SPLIT))
   {
-    u32 hash_pos;
+    u64 hash_pos;
 
     for (hash_pos = 0; hash_pos < hashes_avail; hash_pos++)
     {
@@ -820,7 +820,7 @@ int hashes_init_stage1 (hashcat_ctx_t *hashcat_ctx)
     salts_buf = (salt_t *) hccalloc (1, sizeof (salt_t));
   }
 
-  for (u32 hash_pos = 0; hash_pos < hashes_avail; hash_pos++)
+  for (u64 hash_pos = 0; hash_pos < hashes_avail; hash_pos++)
   {
     hashes_buf[hash_pos].digest = ((char *) digests_buf) + (hash_pos * hashconfig->dgst_size);
 

src/mpsp.c

@@ -365,8 +365,8 @@ static int mp_gen_css (hashcat_ctx_t *hashcat_ctx, char *mask_buf, size_t mask_l
 {
   const user_options_t *user_options = hashcat_ctx->user_options;
 
-  u32 mask_pos;
-  u32 css_pos;
+  size_t mask_pos;
+  size_t css_pos;
 
   for (mask_pos = 0, css_pos = 0; mask_pos < mask_len; mask_pos++, css_pos++)
   {