fdnull             42 maint/gnulib/tests/test-passfd.c   int fdnull;
fdnull             53 maint/gnulib/tests/test-passfd.c   fdnull = open ("/dev/null", O_RDWR);
fdnull             54 maint/gnulib/tests/test-passfd.c   if (fdnull < 0)
fdnull             75 maint/gnulib/tests/test-passfd.c       ret = sendfd (pair[1], fdnull);