stdio-common/tst-put-error.c

   1 #include <errno.h>
   2 #include <error.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <unistd.h>
   6
   7
   8 static int
   9 do_test (void)
  10 {
  11   char tmpl[] = "/tmp/tst-put-error.XXXXXX";
  12   int fd = mkstemp (tmpl);
  13   if (fd == -1)
  14     error (EXIT_FAILURE, errno, "cannot create temporary file");
  15   FILE *fp = fdopen (fd, "w");
  16   if (fp == NULL)
  17     error (EXIT_FAILURE, errno, "fdopen");
  18   setlinebuf (fp);
  19   close (fd);
  20   unlink (tmpl);
  21   int n = fprintf (fp, "hello world\n");
  22   printf ("fprintf = %d\n", n);
  23   if (n >= 0)
  24     error (EXIT_FAILURE, 0, "first fprintf succeeded");
  25   n = fprintf (fp, "hello world\n");
  26   printf ("fprintf = %d\n", n);
  27   if (n >= 0)
  28     error (EXIT_FAILURE, 0, "second fprintf succeeded");
  29   return 0;
  30 }
  31
  32 #define TEST_FUNCTION do_test ()
  33 #include "../test-skeleton.c"