From 22e9386a23297dba3fb427675975aeea3440f6cb Mon Sep 17 00:00:00 2001
From: "Sergey Semyonov (Serge)" <ion2@mail.ru>
Date: Sun, 13 Mar 2016 10:30:38 +0000
Subject: [PATCH] kernel: set maximum length of a stored application path name
 to 1023 bytes

git-svn-id: svn://kolibrios.org@6338 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 kernel/trunk/core/taskman.inc | 18 +++++++++++++++---
 kernel/trunk/fs/fs_lfn.inc    | 21 +++++++++++++++++----
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/kernel/trunk/core/taskman.inc b/kernel/trunk/core/taskman.inc
index f2515b0600..8f645d56d4 100644
--- a/kernel/trunk/core/taskman.inc
+++ b/kernel/trunk/core/taskman.inc
@@ -870,23 +870,35 @@ common_app_entry:
 .copy_full_path:
         mov     esi, [current_slot]
         mov     esi, [esi+APPDATA.cur_dir]
+        mov     ebx, 1023
         mov     al, '/'
         stosb
-@@:
+
+.copy_path:
+        dec     ebx
+        jz      .finish_path
         lodsb
         stosb
         test    al, al
-        jnz     @B
+        jnz     .copy_path
         mov     byte [edi-1], '/'
 
+        cmp     ecx, ebx
+        jbe     @F
+        mov     ecx, ebx
+@@:
         lea     esi, [ebp+sizeof.APP_HDR]
         xor     eax, eax
         rep movsb
         stosb
         jmp     .check_cmdline
 
-.copy_filename:
+.finish_path:
+        xor     eax, eax
+        stosb
+        jmp     .check_cmdline
 
+.copy_filename:
         cmp     byte [esi], '/'
         jne     .copy_full_path
 
diff --git a/kernel/trunk/fs/fs_lfn.inc b/kernel/trunk/fs/fs_lfn.inc
index 4554ab0908..c134607a20 100644
--- a/kernel/trunk/fs/fs_lfn.inc
+++ b/kernel/trunk/fs/fs_lfn.inc
@@ -135,6 +135,19 @@ file_system_lfn:
         lodsb
 @@:
         lea     ebp, [esi-1]
+if 0
+        cmp     [ebx], dword 0
+        jne     @F
+        DEBUGF 1,'read file %s\n',ebp
+        jmp     .1
+@@:
+        cmp     [ebx], dword 5
+        jne     @F
+        DEBUGF 1,'get file attributes %s\n',ebp
+@@:
+.1:
+end if
+
         cmp     dword [ebx], 7
         jne     @F
         mov     edx, [ebx+4]
@@ -734,7 +747,7 @@ process_replace_file_name:
 uglobal
 lock_flag_for_f30_3 rb 1
 endg
-        
+
 sys_current_directory:
 ;       mov     esi, [current_slot]
 ;       mov     esi, [esi+APPDATA.cur_dir]
@@ -759,7 +772,7 @@ sys_current_directory:
 ; check lock of the function
         cmp     [lock_flag_for_f30_3], 1
         je      @f
-        
+
         mov     esi, ecx
         mov     edi, sysdir_name1
 ; copying fake directory name
@@ -778,7 +791,7 @@ sys_current_directory:
 ; terminator of name, in case if we get the inlet trash
         xor     eax, eax
         stosb
-; increase the pointer of inputs for procedure "process_replace_file_name"        
+; increase the pointer of inputs for procedure "process_replace_file_name"
         mov     [full_file_name_table.size], 2
 ; block the ability to call f.30.3 because for one session is necessary
 ; for us only once
@@ -786,7 +799,7 @@ sys_current_directory:
         popfd
 @@:
         ret
-        
+
 .get:
 ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len
 ; for our code: ebx->buffer,ecx=len