186 	int pfd[2];  in test2()  local
191 	if (pipe(pfd) < 0)  in test2()
211 		if (write(pfd[1], "a", 1) < 0)  in test2()
221 	if (read(pfd[0], &ch, 1) != 1)  in test2()
232 	close(pfd[0]);  in test2()
233 	close(pfd[1]);  in test2()
257 	int pfd[2];  in test3()  local
262 	if (pipe(pfd) < 0)  in test3()
282 		if (write(pfd[1], "a", 1) < 0)  in test3()
292 	if (read(pfd[0], &ch, 1) != 1)  in test3()
306 	close(pfd[0]);  in test3()
307 	close(pfd[1]);  in test3()
327 	int pfd[2];  in test4()  local
331 	if (pipe(pfd) < 0)  in test4()
351 		if (write(pfd[1], "a", 1) < 0)  in test4()
361 	if (read(pfd[0], &ch, 1) != 1)  in test4()
382 	close(pfd[0]);  in test4()
383 	close(pfd[1]);  in test4()
601 	int pfd[2];  in test7()  local
606 	if (pipe(pfd) < 0)  in test7()
626 		if (write(pfd[1], "a", 1) < 0)  in test7()
636 	if (read(pfd[0], &ch, 1) != 1)  in test7()
649 	close(pfd[0]);  in test7()
650 	close(pfd[1]);  in test7()
673 	int pfd[2];  in test8()  local
678 	if (pipe(pfd) < 0)  in test8()
698 		if (write(pfd[1], "a", 1) < 0)  in test8()
708 	if (read(pfd[0], &ch, 1) != 1)  in test8()
722 	close(pfd[0]);  in test8()
723 	close(pfd[1]);  in test8()
750 	int pfd[2];  in test9()  local
755 	if (pipe(pfd) < 0)  in test9()
775 		if (write(pfd[1], "a", 1) < 0)  in test9()
785 	if (read(pfd[0], &ch, 1) != 1)  in test9()
798 	close(pfd[0]);  in test9()
799 	close(pfd[1]);  in test9()
822 	int pfd[2];  in test10()  local
826 	if (pipe(pfd) < 0)  in test10()
850 		if (write(pfd[1], "a", 1) < 0)  in test10()
860 	if (read(pfd[0], &ch, 1) != 1)  in test10()
870 	close(pfd[0]);  in test10()
871 	close(pfd[1]);  in test10()
975 	int pfd[2];  in test12()  local
980 	if (pipe(pfd) < 0)  in test12()
1000 		if (write(pfd[1], "a", 1) < 0)  in test12()
1011 	if (read(pfd[0], &ch, 1) != 1)  in test12()
1025 	close(pfd[0]);  in test12()
1026 	close(pfd[1]);  in test12()
1053 	int pfd[2];  in test13()  local
1063 		if (pipe(pfd) < 0)  in test13()
1083 			if (write(pfd[1], "a", 1) < 0)  in test13()
1094 		while (read(pfd[0], &ch, 1) != 1) {  in test13()
1113 		close(pfd[0]);  in test13()
1114 		close(pfd[1]);  in test13()
1340 	int pfd[2];  in test15()  local
1345 	if (pipe(pfd) < 0)  in test15()
1364 		if (write(pfd[1], "a", 1) < 0)  in test15()
1374 	if (read(pfd[0], &ch, 1) != 1)  in test15()
1402 	close(pfd[0]);  in test15()
1403 	close(pfd[1]);  in test15()
1445 	int pfd[2];  in test16()  local
1452 	if (pipe(pfd) < 0)  in test16()
1472 		if (write(pfd[1], "a", 1) < 0)  in test16()
1482 	if (read(pfd[0], &ch, 1) != 1)  in test16()
1505 	close(pfd[0]);  in test16()
1506 	close(pfd[1]);  in test16()