PIOCPSINFO 290 maint/gnulib/lib/get_ppid_of.c int ioctl_ok = 0 <= ioctl (fd, PIOCPSINFO, &buf); PIOCPSINFO 385 maint/gnulib/lib/get_progname_of.c int ioctl_ok = 0 <= ioctl (fd, PIOCPSINFO, &buf); PIOCPSINFO 240 maint/gnulib/lib/getprogname.c int ioctl_ok = 0 <= ioctl (fd, PIOCPSINFO, &buf);