453 dupfd(int fd, int dfd)  in dupfd()  function
577 	    (fd = dupfd(fd, 0)) < 0) {  in Pxcreate()
587 	    (fd = dupfd(fd, 0)) < 0) {  in Pxcreate()
597 	    (fd = dupfd(fd, 0)) < 0) {  in Pxcreate()
885 	    (fd = dupfd(fd, 0)) < 0) {  in Pgrab()
915 	    (fd = dupfd(fd, 0)) < 0) {  in Pgrab()
936 		    (fd = dupfd(fd, 0)) < 0) {  in Pgrab()
1584 	    (fd = dupfd(fd, P->asfd)) != P->asfd) {  in Preopen()
1596 	    (fd = dupfd(fd, P->statfd)) != P->statfd) {  in Preopen()
1608 	    (fd = dupfd(fd, P->ctlfd)) != P->ctlfd) {  in Preopen()
3301 	    (fd = dupfd(fd, 0)) < 0) {  in Lgrab()
3332 	    (fd = dupfd(fd, 0)) < 0) {  in Lgrab()