if (!fp) fp = fopen("h:\\statham\\windows\\putty\\data","wb"); fwrite(lenblk, 4, 1, fp);
void sha_string(SHA_State *s, void *str, int len) {    unsigned char lenblk[4];static FILE *fp;    PUT_32BIT(lenblk, len);if (!fp) fp = fopen("h:\\statham\\windows\\putty\\data","wb");fwrite(lenblk, 4, 1, fp);    SHA_Bytes(s, lenblk, 4);fwrite(str, len, 1, fp);fflush(fp);    SHA_Bytes(s, str, len);}