#include "select.h" #include "open.h" #include "fifo.h" #define FN "temp-trynpbg1.fifo" int main() { int flagbug; struct timeval instant; fd_set rfds; flagbug = 0; if (fifo_make(FN,0600) != -1) { close(0); if (open_read(FN) == 0) { FD_ZERO(&rfds); FD_SET(0,&rfds); instant.tv_sec = instant.tv_usec = 0; if (select(1,&rfds,(fd_set *) 0,(fd_set *) 0,&instant) > 0) flagbug = 1; } unlink(FN); } _exit(!flagbug); }