/* * Name : ch1-03.c * Purpose : Demonstration of variable length outputs * Author : Tom St Denis * * History : v0.79 Initial release */ /* ch1-01-1 */ #include int main(void) { unsigned long length; unsigned char buffer[512]; int errno; length = sizeof(buffer); if ((errno = some_func(..., buffer, &length)) != CRYPT_OK) { printf("Error: %s\n", error_to_string(errno)); return EXIT_FAILURE; } printf("Size of output is %lu bytes\n", length); return 0; } /* ch1-01-1 */