Change size to unsinged long long, so if -1 is passed it will read as much as possible.
diff --git a/libbb/libbb.h b/libbb/libbb.h
index 46a0682..ec2a3a8 100644
--- a/libbb/libbb.h
+++ b/libbb/libbb.h
@@ -95,7 +95,7 @@
int copy_file(const char *src_name, const char *dst_name,
int set_modes, int follow_links, int force_flag, int quiet_flag);
-int copy_file_chunk(FILE *src_file, FILE *dst_file, off_t chunksize);
+int copy_file_chunk(FILE *src_file, FILE *dst_file, unsigned long long chunksize);
char *buildName(const char *dirName, const char *fileName);
int makeString(int argc, const char **argv, char *buf, int bufLen);
char *getChunk(int size);
@@ -234,10 +234,11 @@
extract_info = 4,
extract_extract = 8,
extract_verbose_extract = 16,
- extract_list = 32
+ extract_list = 32,
+ extract_fsys_tarfile = 64
} extract_function_t;
extern int deb_extract(const char *package_filename, int function, char *target_dir);
-extern int untar(FILE *src_tar_file, int function, char *base_path);
+extern int untar(FILE *src_tar_file, int untar_function, char *base_path);
extern int unzip(FILE *l_in_file, FILE *l_out_file);
extern void gz_close(int gunzip_pid);