/*
* out_get_checksum -- return checksum string with result
*/
const char *
out_get_checksum(void *addr, size_t len, uint64_t *csump)
{
static char str_buff[STR_MAX] = {0, };
int ret = 0;
/*
* The memory range can be mapped with PROT_READ, so allocate a new
* buffer for the checksum and calculate there.
*/
void *buf = Malloc(len);
if (buf == NULL) {
ret = snprintf(str_buff, STR_MAX, "failed");
if (ret < 0 || ret >= STR_MAX)
return "";
return str_buff;
}
memcpy(buf, addr, len);
uint64_t *ncsump = (uint64_t *)
((char *)buf + ((char *)csump - (char *)addr));
uint64_t csum = *csump;
/* validate checksum and get correct one */
int valid = util_validate_checksum(buf, len, ncsump);
if (valid)
ret = snprintf(str_buff, STR_MAX, "0x%" PRIx64" [OK]",
le64toh(csum));
else
ret = snprintf(str_buff, STR_MAX,
"0x%" PRIx64 " [wrong! should be: 0x%" PRIx64 "]",
le64toh(csum), le64toh(*ncsump));
Free(buf);
if (ret < 0 || ret >= STR_MAX)
return "";
return str_buff;
}
/*
* out_get_checksum -- return checksum string with result
*/
const char *
out_get_checksum(void *addr, size_t len, uint64_t *csump)
{
static char str_buff[STR_MAX] = {0, };
uint64_t csum = *csump;
/* validate checksum and get correct one */
int valid = util_validate_checksum(addr, len, csump);
if (valid)
snprintf(str_buff, STR_MAX, "0x%08x [OK]", (uint32_t)csum);
else
snprintf(str_buff, STR_MAX,
"0x%08x [wrong! should be: 0x%08x]",
(uint32_t)csum, (uint32_t)*csump);
/* restore original checksum */
*csump = csum;
return str_buff;
}
