#define _PCSC_CR_H
int pcsc_option(const char *option);
-long pcsc_cr(const unsigned char *chal, const int csize,
- unsigned char *resp, int *rsize);
+long pcsc_cr(const unsigned char *chal, const size_t csize,
+ unsigned char *resp, size_t *rsize);
char *pcsc_errstr(long err);
#endif