1 files changed, 7 insertions, 2 deletions

diff --git a/libbb/deb_extract.c b/libbb/deb_extract.c
index d3e615305..0f5a570b6 100644
--- a/libbb/deb_extract.c
+++ b/libbb/deb_extract.c
@@ -30,7 +30,11 @@
 #include <signal.h>
 #include "libbb.h"
 
-extern int deb_extract(const char *package_filename, int function, char *target_dir)
+/*
+ * The contents of argument depend on the value of function.
+ * It is either a dir name or a control file or field name(see dpkg_deb.c)
+ */
+extern int deb_extract(const char *package_filename, int function, char *argument)
 {
 
         FILE *deb_file, *uncompressed_file;
@@ -41,6 +45,7 @@ extern int deb_extract(const char *package_filename, int function, char *target_
         switch (function) {
                 case (extract_info):
                 case (extract_control):
+                case (extract_field):
                         ared_file = xstrdup("control.tar.gz");
                         break;
                 default:
@@ -70,7 +75,7 @@ extern int deb_extract(const char *package_filename, int function, char *target_
         if (function & extract_fsys_tarfile) {
                 copy_file_chunk(uncompressed_file, stdout, -1);
         } else {
-                untar(uncompressed_file, function, target_dir);
+                untar(uncompressed_file, function, argument);
         }
         /* we are deliberately terminating the child so we can safely ignore this */
         gz_close(gunzip_pid);