483 		s->u.shf = shf_open(s->file, O_RDONLY, 0,  in main_init()
485 		if (s->u.shf == NULL) {  in main_init()
497 		s->u.shf = shf_fdopen(0, SHF_RD | can_seek(0),  in main_init()
503 			s->u.shf->flags |= SHF_INTERRUPT;  in main_init()
679 	struct shf *shf;  in include()  local
684 	shf = shf_open(name, O_RDONLY, 0, SHF_MAPHI | SHF_CLEXEC);  in include()
685 	if (shf == NULL)  in include()
697 		quitenv(s ? s->u.shf : NULL);  in include()
730 	s->u.shf = shf;  in include()
733 	quitenv(s->u.shf);  in include()
956 quitenv(struct shf *shf)  in quitenv()  argument
1007 		if (shf)  in quitenv()
1008 			shf_close(shf);  in quitenv()
1029 	if (shf)  in quitenv()
1030 		shf_close(shf);  in quitenv()
1372 struct shf shf_iob[NSHF_IOB];
1627 	tp->shf = NULL;  in maketemp()
1671 	tp->shf = shf_fdopen(i, j, NULL);  in maketemp()