boolean vm_hashsum(const char* name, char* digest, vm_che_type type, VMUINT type_size) {
VMWCHAR src[OTA_MAX_PATH_LEN];
VMFILE handle;
VMUINT size, read, done;
vm_stche che_ctx;
uint8_t buffer[DIGEST_SIZE_BUFFER];
uint8_t che_hash[DIGEST_SIZE_MAX];
boolean result = true;
LOTAUPDATE_DEBUG("vm_md5sum - checking file %s\r\n", name);
if (vm_ascii_to_ucs2(src, OTA_MAX_PATH_LEN*sizeof(VMWCHAR), (VMSTR) name) < 0) {
LOTAUPDATE_DEBUG("vm_md5sum - error converting path to VMWCHAR\r\n");
return false;
}
if((handle = vm_file_open(src, MODE_READ, true)) < 0) {
LOTAUPDATE_DEBUG("vm_md5sum - error opening file\r\n");
return false;
}
if(vm_file_getfilesize(handle, &size) != 0) {
LOTAUPDATE_DEBUG("vm_md5sum - error getting file size");
result = false;
goto vm_md5sum_cleanup;
}
// initialize the che context and hash
memset(che_hash, 0, type_size);
vm_che_init(&che_ctx, type);
done = 0;
while(done < size) {
vm_file_read(handle, buffer, DIGEST_SIZE_BUFFER, &read);
done += read;
vm_che_process(&che_ctx, type, VM_CHE_MODE_NULL, VM_CHE_HASH, buffer, che_hash, read, done == size);
}
for(int i=0; i<type_size; i++) {
sprintf(&digest[i*2], "%02x", che_hash[i]);
}
digest[2*type_size] = 0;
result = true;
vm_che_deinit(&che_ctx);
vm_md5sum_cleanup:
vm_file_close(handle);
return result;
}
/*****************************************************************************
* FUNCTION
* get_file_size
* DESCRIPTION
* Gets the file specified size.
* PARAMETERS
* f_name [IN] VMSTR Complete file name of the file
* RETURNS
* file_size [OUT] VMINT The file's size in int
*****************************************************************************/
VMINT get_file_size(VMSTR f_name){
VMFILE file_handle;
//VMCHAR f_name[MRE_STR_SIZE_MAX + 1] ;
VMWCHAR f_wname[MRE_STR_SIZE_MAX + 1];
VMCHAR show_data[MRE_STR_SIZE_MAX + 1 + 10];
VMWCHAR default_ucs[MRE_STR_SIZE_MAX + 1];
VMCHAR show_text[MRE_STR_SIZE_MAX + 1];
VMUINT nread;
VMINT file_size;
vm_log_debug ("Entering get_file_size function ");
//sprintf (f_name, "%c:\\%s", mre_get_drv(), file_name);
vm_log_debug("file name : %s", f_name);
/* string format conversion */
vm_ascii_to_ucs2 (f_wname, MRE_STR_SIZE_MAX, f_name);
file_handle = vm_file_open(f_wname, MODE_WRITE, TRUE); //Mode as Binary cuz image, right?
vm_file_getfilesize(file_handle, &file_size);
vm_file_close(file_handle); //Don't need the file no more. Closing it.
return file_size;
}