Implemented file reader function

src/utils.h

@@ -8,7 +8,16 @@
 #include <stdint.h>
 #include <stdbool.h>
 
+#include "magic_memory.h"
+
+#define FILE_READ_COULD_NOT_OPEN 1
+#define FILE_READ_TOO_BIG 2
+#define FILE_READ_COULD_NOT_ALLOCATE 3
+#define FILE_READ_ERROR 4
+#define FILE_READ_SUCCESS 0
+
 bool contains(const uint8_t *data, uint64_t data_len, uint8_t what);
 
+uint8_t read_file_to_mem(mm_ctx context, const char *filename, uint64_t max_len, uint8_t **data, uint64_t *data_len);
 
 #endif //CAFF_PREVIEWER_UTILS_H