HelenOS sources
S_ISDIR 492 uspace/srv/fs/mfs/mfs_ops.c if (!S_ISDIR(ino_i->i_mode))
S_ISDIR 593 uspace/srv/fs/mfs/mfs_ops.c if (S_ISDIR(mnode->ino_i->i_mode)) {
S_ISDIR 679 uspace/srv/fs/mfs/mfs_ops.c return S_ISDIR(node->ino_i->i_mode);
S_ISDIR 711 uspace/srv/fs/mfs/mfs_ops.c if (S_ISDIR(child->ino_i->i_mode)) {
S_ISDIR 775 uspace/srv/fs/mfs/mfs_ops.c if (chino->i_nlinks <= 1 && S_ISDIR(chino->i_mode)) {
S_ISDIR 798 uspace/srv/fs/mfs/mfs_ops.c if (!S_ISDIR(mnode->ino_i->i_mode))
S_ISDIR 848 uspace/srv/fs/mfs/mfs_ops.c if (S_ISDIR(ino_i->i_mode)) {
HelenOS homepage, sources at GitHub