mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-16 00:00:02 +01:00
79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
/** UUID helpers.
|
|
*
|
|
* @author Steffen Vogel <post@steffenvogel.de>
|
|
* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
|
|
* @license Apache License 2.0
|
|
*********************************************************************************/
|
|
|
|
#include <openssl/evp.h>
|
|
|
|
#include <villas/uuid.hpp>
|
|
|
|
using namespace villas::uuid;
|
|
|
|
int villas::uuid::generateFromString(uuid_t out, const std::string &data, const std::string &ns)
|
|
{
|
|
int ret;
|
|
EVP_MD_CTX *c = EVP_MD_CTX_new();
|
|
|
|
ret = EVP_DigestInit(c, EVP_md5());
|
|
if (!ret)
|
|
return -1;
|
|
|
|
// Namespace
|
|
ret = EVP_DigestUpdate(c, (unsigned char *) ns.c_str(), ns.size());
|
|
if (!ret)
|
|
return -1;
|
|
|
|
// Data
|
|
ret = EVP_DigestUpdate(c, (unsigned char *) data.c_str(), data.size());
|
|
if (!ret)
|
|
return -1;
|
|
|
|
ret = EVP_DigestFinal(c, (unsigned char *) out, nullptr);
|
|
if (!ret)
|
|
return -1;
|
|
|
|
EVP_MD_CTX_free(c);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int villas::uuid::generateFromString(uuid_t out, const std::string &data, const uuid_t ns)
|
|
{
|
|
int ret;
|
|
EVP_MD_CTX *c = EVP_MD_CTX_new();
|
|
|
|
ret = EVP_DigestInit(c, EVP_md5());
|
|
if (!ret)
|
|
return -1;
|
|
|
|
// Namespace
|
|
ret = EVP_DigestUpdate(c, (unsigned char *) ns, 16);
|
|
if (!ret)
|
|
return -1;
|
|
|
|
// Data
|
|
ret = EVP_DigestUpdate(c, (unsigned char *) data.c_str(), data.size());
|
|
if (!ret)
|
|
return -1;
|
|
|
|
ret = EVP_DigestFinal(c, (unsigned char *) out, nullptr);
|
|
if (!ret)
|
|
return -1;
|
|
|
|
EVP_MD_CTX_free(c);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int villas::uuid::generateFromJson(uuid_t out, json_t *json, const uuid_t ns)
|
|
{
|
|
char *str = json_dumps(json, JSON_COMPACT | JSON_SORT_KEYS);
|
|
|
|
int ret = generateFromString(out, str, ns);
|
|
|
|
free(str);
|
|
|
|
return ret;
|
|
}
|