dpkg improvements, use full package struct, avoid extracting to tmp dir, rename variable.
deb_extract, untar and dpkg_deb modified to make the above possible
diff --git a/include/libbb.h b/include/libbb.h
index 569ed93..4b06ad1 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -236,10 +236,13 @@
extract_verbose_extract = 16,
extract_list = 32,
extract_fsys_tarfile = 64,
- extract_field = 128
+ extract_field = 128,
+ extract_contents_to_file = 256
} extract_function_t;
-extern int deb_extract(const char *package_filename, int function, char *target_dir);
-extern char *untar(FILE *src_tar_file, FILE *output, const int untar_function, const char *argument);
+extern char *deb_extract(const char *package_filename, const int function,
+ const char *argument, const char *argument2);
+extern char *untar(FILE *src_tar_file, FILE *output, const int untar_function,
+ const char *argument, const char *file_prefix);
extern char *read_text_file_to_buffer(FILE *src_file);
extern char *read_package_field(const char *package_buffer);