8 main (int argc, char const **argv)
11 int i, rv = 0; // Set breakpoint here.
13 // Make sure stdin/stdout/stderr exist.
14 for (i = 0; i <= 2; ++i) {
15 if (fstat(i, &buf) != 0)
19 // Make sure no other file descriptors are open.
20 for (i = 3; i <= 256; ++i) {
21 if (fstat(i, &buf) == 0 || errno != EBADF) {
22 fprintf(stderr, "File descriptor %d is open.\n", i);