#include "unp.h" int main(int argc, char **argv) { int fd; if (argc != 4) err_quit("openfile "); if ( (fd = open(argv[2], atoi(argv[3]))) < 0) exit( (errno > 0) ? errno : 255 ); if (write_fd(atoi(argv[1]), "", 1, fd) < 0) exit( (errno > 0) ? errno : 255 ); exit(0); }