ioctl() IOCTL_STAT command

kernel/syscall/ioctl.c

@@ -133,6 +133,35 @@ int32_t SYSCALL5(sys_ioctl, ioh1, cmd1, arg1, arg2, arg3) {
 
       ret = vobj->read(vobj, buffer, len, off);
     } break;
+    case IOCTL_STAT: {
+      if (ioh >= PROC_VFSHANDLES_MAX) {
+        ret = E_INVALIDARGUMENT;
+        goto done;
+      }
+
+      spinlock_acquire(&PROCS.spinlock);
+      Proc *proc = PROCS.current;
+      spinlock_release(&PROCS.spinlock);
+
+      VfsObj *vobj = proc->vobjs[ioh];
+
+      if (vobj == NULL) {
+        ret = E_INVALIDARGUMENT;
+        goto done;
+      }
+
+      VfsStat stat1;
+      ret = vobj->stat(vobj, &stat1);
+
+      IoctlStat *iostat = (IoctlStat *)arg1;
+      if (iostat == NULL) {
+        ret = E_INVALIDARGUMENT;
+        goto done;
+      }
+
+      iostat->size = stat1.size;
+      iostat->type = stat1.type;
+    } break;
     default: {
       ret = E_INVALIDARGUMENT;
       goto done;

kernel/vfs/vfs.h

@@ -20,8 +20,8 @@ static const char *vfs_strings[] = {
 };
 
 enum {
-  VFS_TYPE_DIR,
-  VFS_TYPE_FILE,
+  VFS_TYPE_DIR = 0,
+  VFS_TYPE_FILE = 1,
 };
 
 enum {