#include <errno.h>
#include <fcntl.h>
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
#include "binary-io.h"
#if GNULIB_TEST_CLOEXEC
{
const char *file = "test-dup2.tmp";
char buffer[1];
+ int bad_fd = getdtablesize ();
int fd = open (file, O_CREAT | O_TRUNC | O_RDWR, 0600);
/* Assume std descriptors were provided by invoker. */
errno = 0;
ASSERT (dup2 (-1, fd) == -1);
ASSERT (errno == EBADF);
+ close (99);
errno = 0;
ASSERT (dup2 (99, fd) == -1);
ASSERT (errno == EBADF);
errno = 0;
ASSERT (dup2 (fd, -2) == -1);
ASSERT (errno == EBADF);
+ if (bad_fd > 256)
+ {
+ ASSERT (dup2 (fd, 255) == 255);
+ ASSERT (dup2 (fd, 256) == 256);
+ ASSERT (close (255) == 0);
+ ASSERT (close (256) == 0);
+ }
+ ASSERT (dup2 (fd, bad_fd - 1) == bad_fd - 1);
+ ASSERT (close (bad_fd - 1) == 0);
errno = 0;
- ASSERT (dup2 (fd, 10000000) == -1);
+ ASSERT (dup2 (fd, bad_fd) == -1);
ASSERT (errno == EBADF);
/* Using dup2 can skip fds. */