misc/tst-error1.c

   1 #include <error.h>
   2 #include <mcheck.h>
   3 #include <stdio.h>
   4 #include <string.h>
   5 #include <wchar.h>
   6 #include <libc-diag.h>
   7
   8 #include <support/xstdio.h>
   9
  10 static int
  11 do_test (int argc, char *argv[])
  12 {
  13   mtrace ();
  14   xfreopen (argc == 1 ? "/dev/stdout" : argv[1], "a", stderr);
  15   /* Orient the stream.  */
  16   fwprintf (stderr, L"hello world\n");
  17   char buf[20000];
  18   static const char str[] = "hello world! ";
  19   for (int i = 0; i < 1000; ++i)
  20     memcpy (&buf[i * (sizeof (str) - 1)], str, sizeof (str));
  21   error (0, 0, str);
  22
  23   /* We're testing a large format string here and need to generate it
  24      to avoid this source file being ridiculous.  So disable the warning
  25      about a generated format string.  */
  26   DIAG_PUSH_NEEDS_COMMENT;
  27   DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-security");
  28
  29   error (0, 0, buf);
  30   error (0, 0, buf);
  31
  32   DIAG_POP_NEEDS_COMMENT;
  33
  34   error (0, 0, str);
  35   return 0;
  36 }
  37
  38 #define TEST_FUNCTION do_test (argc, argv)
  39 #include "../test-skeleton.c"