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-rw-r--r--extlinux.asm16
1 files changed, 12 insertions, 4 deletions
diff --git a/extlinux.asm b/extlinux.asm
index 8b2eff5b..c96e1102 100644
--- a/extlinux.asm
+++ b/extlinux.asm
@@ -1116,25 +1116,32 @@ searchdir:
jmp .skipslash
.readdir:
+ mov cx,[SecPerClust]
+ push cx
+ shl cx,SECTOR_SHIFT
mov bx,trackbuf
+ add cx,bx
+ mov [EndBlock],cx
+ pop cx
push bx
- mov cx,[SecPerClust]
call getfssec
pop bx
pushf ; Save EOF flag
push si ; Save filesystem pointer
.getent:
- cmp dword [bx+d_inode],0
- je .endblock
+ cmp bx,[EndBlock]
+ jae .endblock
push di
+ cmp dword [bx+d_inode],0 ; Zero inode = void entry
+ je .nope
+
movzx cx,byte [bx+d_name_len]
lea si,[bx+d_name]
repe cmpsb
je .maybe
.nope:
pop di
-
add bx,[bx+d_rec_len]
jmp .getent
@@ -1232,6 +1239,7 @@ SymlinkBuf resb SYMLINK_SECTORS*SECTOR_SIZE+64
SymlinkTmpBuf equ trackbuf
SymlinkTmpBufEnd equ trackbuf+SYMLINK_SECTORS*SECTOR_SIZE+64
ThisDir resd 1
+EndBlock resw 1
SymlinkCtr resb 1
section .text