stdio-common/bug3.c

   1 #include <stdio.h>
   2 #include <string.h>
   3
   4 int
   5 main (void)
   6 {
   7   FILE *f;
   8   int i;
   9   const char filename[] = "/tmp/bug3.test";
  10
  11   f = fopen(filename, "w+");
  12   for (i=0; i<9000; i++)
  13     putc ('x', f);
  14   fseek (f, 8180L, 0);
  15   fwrite ("Where does this text go?", 1, 24, f);
  16   fflush (f);
  17
  18   rewind (f);
  19   for (i=0; i<9000; i++)
  20     {
  21       int j;
  22
  23       if ((j = getc(f)) != 'x')
  24         {
  25           if (i != 8180)
  26             {
  27               printf ("Test FAILED!");
  28               return 1;
  29             }
  30           else
  31             {
  32               char buf[25];
  33
  34               buf[0] = j;
  35               fread (buf + 1, 1, 23, f);
  36               buf[24] = '\0';
  37               if (strcmp (buf, "Where does this text go?") != 0)
  38                 {
  39                   printf ("%s\nTest FAILED!\n", buf);
  40                   return 1;
  41                 }
  42               i += 23;
  43             }
  44         }
  45     }
  46
  47   fclose(f);
  48   remove(filename);
  49
  50   puts ("Test succeeded.");
  51
  52   return 0;
  53 }