Changeset 407 for trunk/kernel/syscalls/sys_open.c

Timestamp:

Nov 7, 2017, 3:08:12 PM (7 years ago)

Author:

alain

Message:

First implementation of fork/exec.

File:

• trunk/kernel/syscalls/sys_open.c (modified) (3 diffs)

trunk/kernel/syscalls/sys_open.c

@@ -55 +55 @@
     }
 
-    // get pathname copy in kernel space
-    error = hal_strcpy_from_uspace( kbuf , pathname , CONFIG_VFS_MAX_PATH_LENGTH );
-
-    if( error )
+    // check pathname length
+    if( hal_strlen_from_uspace( pathname ) >= CONFIG_VFS_MAX_PATH_LENGTH )
     {
         printk("\n[ERROR] in %s : pathname too long\n", __FUNCTION__ );
@@ -65 +63 @@
     }
 
+    // copy pathname in kernel space
+    hal_strcpy_from_uspace( kbuf , pathname , CONFIG_VFS_MAX_PATH_LENGTH );
+
     // get cluster and local pointer on reference process
     xptr_t      ref_xp  = process->ref_xp;
@@ -70 +71 @@
     cxy_t       ref_cxy = GET_CXY( ref_xp );
 
-    // get extended pointer on cwd inode
-    xptr_t cwd_xp = hal_remote_lwd( XPTR( ref_cxy , &ref_ptr->vfs_cwd_xp ) );
-
     // get the cwd lock in read mode from reference process
     remote_rwlock_rd_lock( XPTR( ref_cxy , &ref_ptr->cwd_lock ) );
 
     // call the relevant VFS function
-    error = vfs_open( cwd_xp,
+    error = vfs_open( process,
                       kbuf,
                       flags,