[miniz] fix initialization issues in original code

miniz/miniz_tdef.c

@@ -1333,6 +1333,7 @@ tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_fun
     d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0;
     d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
     d->m_pLZ_flags = d->m_lz_code_buf;
+    *d->m_pLZ_flags = 0;
     d->m_num_flags_left = 8;
     d->m_pOutput_buf = d->m_output_buf;
     d->m_pOutput_buf_end = d->m_output_buf;

miniz/miniz_tinfl.h

@@ -87,11 +87,17 @@ typedef enum {
 } tinfl_status;
 
 /* Initializes the decompressor to its initial state. */
-#define tinfl_init(r)     \
-    do                    \
-    {                     \
-        (r)->m_state = 0; \
-    }                     \
+#define tinfl_init(r)                           \
+  do                                            \
+    {                                           \
+      (r)->m_state = 0;                         \
+      (r)->m_num_bits = 0;                      \
+      (r)->m_bit_buf = 0;                       \
+      (r)->m_dist = 0;                          \
+      (r)->m_counter = 0;                       \
+      (r)->m_num_extra = 0;                     \
+      (r)->m_dist_from_out_buf_start = 0;       \
+    }                                           \
     MZ_MACRO_END
 #define tinfl_get_adler32(r) (r)->m_check_adler32