-DSA *DSA_generate_parameters(int bits, unsigned char *seed_in, int seed_len,
- int *counter_ret, unsigned long *h_ret, void (*callback)(),
+DSA *DSA_generate_parameters(int bits,
+ unsigned char *seed_in, int seed_len,
+ int *counter_ret, unsigned long *h_ret,
+ void (*callback)(int, int, void *),