kernel to/from NV

#include <stdio.h>
#include <sys/stat.h>
#include "include/trousers/tss.h"
#define CKERR if(result != TSS_SUCCESS) {perror("erro/n"); return 1;}
int main(){
  TSS_HCONTEXT hContext;
  TSS_HTPM hTPM;
  TSS_HPOLICY hOwnerPolicy;
  TSS_HNVSTORE hNVStore;
  TSS_RESULT result;
  TSS_HHASH hHash;
  int i = 0;
  BYTE *data;
  BYTE *digest;
  UINT32 len, len1 = 20;
 
  FILE *file;
  BYTE *buffer;
  struct stat st;
  int ret;
 
  result = Tspi_Context_Create(&hContext); CKERR
  result = Tspi_Context_Connect(hContext, NULL); CKERR
  //result = Tspi_Context_GetTpmObject(hContext, &hTPM); CKERR

  //result = Tspi_GetPolicyObject(hTPM, TSS_POLICY_USAGE, &hOwnerPolicy); CKERR
  //result = Tspi_Policy_SetSecret(hOwnerPolicy, TSS_SECRET_MODE_POPUP, 0, NULL); CKERR
  result = Tspi_Context_CreateObject(hContext, TSS_OBJECT_TYPE_NV, 0, &hNVStore); CKERR

  result = Tspi_Context_CreateObject(hContext, TSS_OBJECT_TYPE_HASH, TSS_HASH_SHA1, &hHash); CKERR
  result = Tspi_SetAttribUint32(hNVStore, TSS_TSPATTRIB_NV_INDEX, 0, 1); CKERR
  //result = Tspi_SetAttribUint32(hNVStore, TSS_TSPATTRIB_NV_PERMISSIONS, 0, TPM_NV_PER_AUTHWRITE); CKERR
  result = Tspi_SetAttribUint32(hNVStore, TSS_TSPATTRIB_NV_DATASIZE, 0, 20); CKERR

  file = fopen("/boot/vmlinuz-2.6.30", "rb");
  if(!file) {
     perror("Open the file error/n");
     return 0;
  }
  ret = stat("/boot/vmlinuz-2.6.30", &st);
  if(ret) perror("stat error!/n");
  len = st.st_size;
  buffer =(BYTE *) malloc(len * sizeof(BYTE));
  if(!buffer) perror("malloc error/n");
  ret = fread(buffer, len, 1, file);
   
 
  result = Tspi_Hash_UpdateHashValue(hHash, len, buffer); CKERR
  result = Tspi_Hash_GetHashValue(hHash, &len, &data); CKERR
  printf("The hash value is:/n");
  for (; i < len; i++)
    printf("%3x", data[i]);
  printf("/n");
 
  digest = (BYTE *) malloc(20 * sizeof(BYTE));
  result = Tspi_NV_WriteValue(hNVStore, 0, 20, data); CKERR
  result = Tspi_NV_ReadValue(hNVStore, 0, &len1, &digest); CKERR
 
  printf("The readed hash value is:/n");
  for (i=0; i < 20; i++)
    printf("%3x", digest[i]);
  printf("/n");
  return 1;
}