deflate_test.c

/*
 * Test if I broke opencrypto's deflate
 */
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* Hackery because we're using sys/zlib.h code in userspace */
#define ZLIB_H
#define NO_DUMMY_DECL

#include <opencrypto/cryptodev.h>
#include <opencrypto/deflate.h>
#include <opencrypto/xform.h>

/* More hackery for kernel code in userspace, use userland malloc()/free() instead of kernel */
#include <opencrypto/xform_userland.h>
#include "cryptodeflate_local.c"

/* Use the kernel's zlib and deflate functions */
#include <libkern/zlib.c>
#include <opencrypto/xform_deflate.c>

int
main(int argc, char *argv[])
{
 u_int8_t small[81] = "ALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLAN";
 u_int8_t big[401] = "ALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLANALLAN";
 u_int8_t *comp_output, *decomp_output;
 u_int32_t outsize;

 printf("small string = %lu bytes\n", sizeof(small));

 outsize = comp_algo_deflate.compress(small, sizeof(small), &comp_output);
 printf("Attempted compression of small string, result: %u\n", outsize);

 outsize = comp_algo_deflate.decompress(comp_output, outsize, &decomp_output);
 printf("Attempted decompression of small string, result: %u\n", outsize);

 if (bcmp(decomp_output, small, sizeof(small)) == 0) {
        printf("Decompressed small string was identical to input\n");
 } else {
        printf("Decompression of small string was incorrect!\n");
 }
 printf("\n");

 printf("big string = %lu bytes\n", sizeof(big));

 outsize = comp_algo_deflate.compress(big, sizeof(big), &comp_output);
 printf("Attempted compression of big string, result: %u\n", outsize);

 outsize = comp_algo_deflate.decompress(comp_output, outsize, &decomp_output);
 printf("Attempted decompression of big string, result: %u\n", outsize);

 if (bcmp(decomp_output, big, sizeof(big)) == 0) {
        printf("Decompressed big string was identical to input\n");
 } else {
        printf("Decompression of big string was incorrect!\n");
 }
 printf("\n");


}

Attempted compression of small string, result: 11
Attempted decompression of small string, result: 81
Decompressed small string was identical to input

big string = 401 bytes
Attempted compression of big string, result: 13
Attempted decompression of big string, result: 401
Decompressed big string was identical to input