maint: update copyright

[gnulib.git] / tests / test-openat.c

diff --git a/tests/test-openat.c b/tests/test-openat.c
index 6e5c519..ed50507 100644 (file)
--- a/tests/test-openat.c
+++ b/tests/test-openat.c
@@ -1,5 +1,5 @@
 /* Test that openat works.
-   Copyright (C) 2009 Free Software Foundation, Inc.
+   Copyright (C) 2009-2014 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -20,28 +20,70 @@
 
 #include <fcntl.h>
 
+#include "signature.h"
+SIGNATURE_CHECK (openat, int, (int, char const *, int, ...));
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdbool.h>
 #include <stdio.h>
-#include <stdlib.h>
 #include <unistd.h>
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-       {                                                                    \
-         fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-         fflush (stderr);                                                   \
-         abort ();                                                          \
-       }                                                                    \
-    }                                                                        \
-  while (0)
+#include "progname.h"
+#include "macros.h"
+
+#define BASE "test-openat.t"
+
+#include "test-open.h"
+
+static int dfd = AT_FDCWD;
+
+/* Wrapper around openat to test open behavior.  */
+static int
+do_open (char const *name, int flags, ...)
+{
+  if (flags & O_CREAT)
+    {
+      mode_t mode = 0;
+      va_list arg;
+      va_start (arg, flags);
+
+      /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4
+         creates crashing code when 'mode_t' is smaller than 'int'.  */
+      mode = va_arg (arg, PROMOTED_MODE_T);
+
+      va_end (arg);
+      return openat (dfd, name, flags, mode);
+    }
+  return openat (dfd, name, flags);
+}
 
 int
-main (void)
+main (int argc _GL_UNUSED, char *argv[])
 {
-  /* FIXME - add more tests.  For example, share /dev/null and
-     trailing slash tests with test-open, and do more checks for
-     proper fd handling.  */
+  int result;
+
+  set_program_name (argv[0]);
+
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (openat (-1, "foo", O_RDONLY) == -1);
+    ASSERT (errno == EBADF);
+  }
+  {
+    close (99);
+    errno = 0;
+    ASSERT (openat (99, "foo", O_RDONLY) == -1);
+    ASSERT (errno == EBADF);
+  }
+
+  /* Basic checks.  */
+  result = test_open (do_open, false);
+  dfd = open (".", O_RDONLY);
+  ASSERT (0 <= dfd);
+  ASSERT (test_open (do_open, false) == result);
+  ASSERT (close (dfd) == 0);
 
   /* Check that even when *-safer modules are in use, plain openat can
      land in fd 0.  Do this test last, since it is destructive to
@@ -49,12 +91,12 @@ main (void)
   ASSERT (close (STDIN_FILENO) == 0);
   ASSERT (openat (AT_FDCWD, ".", O_RDONLY) == STDIN_FILENO);
   {
-    int dfd = open (".", O_RDONLY);
+    dfd = open (".", O_RDONLY);
     ASSERT (STDIN_FILENO < dfd);
     ASSERT (chdir ("..") == 0);
     ASSERT (close (STDIN_FILENO) == 0);
     ASSERT (openat (dfd, ".", O_RDONLY) == STDIN_FILENO);
     ASSERT (close (dfd) == 0);
   }
-  return 0;
+  return result;
 }