gcc/testsuite/gcc.c-torture/execute/pr67037.c

   1 long (*extfunc)();
   2
   3 static inline void lstrcpynW( short *d, const short *s, int n )
   4 {
   5     unsigned int count = n;
   6
   7     while ((count > 1) && *s)
   8     {
   9         count--;
  10         *d++ = *s++;
  11     }
  12     if (count) *d = 0;
  13 }
  14
  15 int __attribute__((noinline,noclone))
  16 badfunc(int u0, int u1, int u2, int u3,
  17   short *fsname, unsigned int fsname_len)
  18 {
  19     static const short ntfsW[] = {'N','T','F','S',0};
  20     char superblock[2048+3300];
  21     int ret = 0;
  22     short *p;
  23
  24     if (extfunc())
  25         return 0;
  26     p = (void *)extfunc();
  27     if (p != 0)
  28         goto done;
  29
  30     extfunc(superblock);
  31
  32     lstrcpynW(fsname, ntfsW, fsname_len);
  33
  34     ret = 1;
  35 done:
  36     return ret;
  37 }
  38
  39 static long f()
  40 {
  41     return 0;
  42 }
  43
  44 int main()
  45 {
  46     short buf[6];
  47     extfunc = f;
  48     return !badfunc(0, 0, 0, 0, buf, 6);
  49 }