update

base.h

@@ -8,7 +8,7 @@
 #include <stddef.h>
 
 void hex_dump(const unsigned char *data, size_t len);
-int base64_decode(const char *in, unsigned char *out, size_t *out_len);
+unsigned char *base64_decode(const char *data, size_t input_length, size_t *output_length);
 extern const unsigned char dtable[256];
 void init_crc32_table(void);
 uint32_t crc32_le(uint32_t crc, const uint8_t *buf, size_t len);