Kernel - Implimented VFS_Reopen

[tpg/acess2.git] / KernelLand / Kernel / vfs / open.c

diff --git a/KernelLand/Kernel/vfs/open.c b/KernelLand/Kernel/vfs/open.c
index 2bfb261..748d0f7 100644 (file)
--- a/KernelLand/Kernel/vfs/open.c
+++ b/KernelLand/Kernel/vfs/open.c
@@ -722,6 +722,30 @@ int VFS_OpenInode(Uint32 Mount, Uint64 Inode, int Mode)
        LEAVE_RET('x', VFS_int_CreateHandle(node, mnt, Mode));
 }
 
+int VFS_Reopen(int FD, const char *Path, int Flags)
+{
+       tVFS_Handle     *h = VFS_GetHandle(FD);
+       if(!h) {
+               errno = EBADF;
+               return -1;
+       }
+
+       int newf = VFS_Open(Path, Flags);
+       if( newf == -1 ) {
+               return -1;
+       }
+       
+       _CloseNode(h->Node);
+       _DereferenceMount(h->Mount, "Reopen");
+       memcpy(h, VFS_GetHandle(newf), sizeof(*h));
+       _ReferenceNode(h->Node);
+       _ReferenceMount(h->Mount, "Reopen");
+       
+       VFS_Close(newf);        
+
+       return FD;
+}
+
 /**
  * \fn void VFS_Close(int FD)
  * \brief Closes an open file handle
@@ -774,6 +798,8 @@ int VFS_DuplicateFD(int SrcFD, int DstFD)
                        return -1;
                VFS_SetHandle(DstFD, src->Node, src->Mode);
        }
+       _ReferenceMount(src->Mount, "DuplicateFD");
+       _ReferenceNode(src->Node);
        memcpy(VFS_GetHandle(DstFD), src, sizeof(tVFS_Handle));
        return DstFD;
 }