b548a1f11c
Don't check for NULL before calling OPENSSL_free Reviewed-by: Richard Levitte <levitte@openssl.org>
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/**********************************************************************
|
|
* gost_ctl.c *
|
|
* Copyright (c) 2005-2006 Cryptocom LTD *
|
|
* This file is distributed under the same license as OpenSSL *
|
|
* *
|
|
* Implementation of control commands for GOST engine *
|
|
* OpenSSL 0.9.9 libraries required *
|
|
**********************************************************************/
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <openssl/crypto.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/engine.h>
|
|
#include <openssl/buffer.h>
|
|
#include "gost_lcl.h"
|
|
|
|
static char *gost_params[GOST_PARAM_MAX + 1] = { NULL };
|
|
static const char *gost_envnames[] = { "CRYPT_PARAMS" };
|
|
|
|
const ENGINE_CMD_DEFN gost_cmds[] = {
|
|
/*- { GOST_CTRL_RNG,
|
|
"RNG",
|
|
"Type of random number generator to use",
|
|
ENGINE_CMD_FLAG_STRING
|
|
},
|
|
{ GOST_CTRL_RNG_PARAMS,
|
|
"RNG_PARAMS",
|
|
"Parameter for random number generator",
|
|
ENGINE_CMD_FLAG_STRING
|
|
},
|
|
*/ {GOST_CTRL_CRYPT_PARAMS,
|
|
"CRYPT_PARAMS",
|
|
"OID of default GOST 28147-89 parameters",
|
|
ENGINE_CMD_FLAG_STRING},
|
|
{0, NULL, NULL, 0}
|
|
};
|
|
|
|
void gost_param_free()
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i <= GOST_PARAM_MAX; i++) {
|
|
OPENSSL_free(gost_params[i]);
|
|
gost_params[i] = NULL;
|
|
}
|
|
|
|
}
|
|
|
|
int gost_control_func(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
|
|
{
|
|
int param = cmd - ENGINE_CMD_BASE;
|
|
int ret = 0;
|
|
if (param < 0 || param > GOST_PARAM_MAX)
|
|
return -1;
|
|
ret = gost_set_default_param(param, p);
|
|
return ret;
|
|
}
|
|
|
|
const char *get_gost_engine_param(int param)
|
|
{
|
|
char *tmp;
|
|
if (param < 0 || param > GOST_PARAM_MAX)
|
|
return NULL;
|
|
if (gost_params[param] != NULL) {
|
|
return gost_params[param];
|
|
}
|
|
tmp = getenv(gost_envnames[param]);
|
|
if (tmp) {
|
|
OPENSSL_free(gost_params[param]);
|
|
gost_params[param] = BUF_strdup(tmp);
|
|
return gost_params[param];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int gost_set_default_param(int param, const char *value)
|
|
{
|
|
const char *tmp;
|
|
if (param < 0 || param > GOST_PARAM_MAX)
|
|
return 0;
|
|
tmp = getenv(gost_envnames[param]);
|
|
/*
|
|
* if there is value in the environment, use it, else -passed string *
|
|
*/
|
|
if (!tmp)
|
|
tmp = value;
|
|
OPENSSL_free(gost_params[param]);
|
|
gost_params[param] = BUF_strdup(tmp);
|
|
|
|
return 1;
|
|
}
|