Add a proper internal close function (close_file)

Add a "close_file" function and hook it up to the long-standing comboot
API function.  At the moment, all it does is free up internal
resources; in particular, for PXELINUX it should also really send an
ERROR packet to the server to terminate the connection on that end.

1 files changed, 9 insertions, 0 deletions

diff --git a/ldlinux.asm b/ldlinux.asm
index 3cfa13e2..7d7b8f23 100644
--- a/ldlinux.asm
+++ b/ldlinux.asm
@@ -1060,6 +1060,15 @@ search_dos_dir:
 		ret
 
 ;
+; close_file:
+;	     Deallocates a file structure (pointer in SI)
+;	     Assumes CS == DS.
+;
+close_file:
+		mov dword [si],0		; First dword == file_left
+		ret
+
+;
 ; searchdir:
 ;
 ;	Open a file