HelenOS sources

LS_DIR            347 uspace/app/bdsh/cmds/modules/ls/ls.c 		case LS_DIR:
LS_DIR            388 uspace/app/bdsh/cmds/modules/ls/ls.c 		return LS_DIR;
LS_DIR            484 uspace/app/bdsh/cmds/modules/ls/ls.c 	case LS_DIR:
HelenOS homepage, sources at GitHub