F_GETNOSIGPIPE
case F_GETNOSIGPIPE:
ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) == 0);
ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) != 0);
ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) != 0);
ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) == 0);
CASERETURN(F_GETNOSIGPIPE);