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Factor out some code for returning bignums

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This commit is contained in:
dmiller
2016-06-09 04:36:07 +00:00
parent 88bcae4ef1
commit 056c48544a
1 changed files with 16 additions and 35 deletions
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51
nse_openssl.cc
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@@ -30,17 +30,22 @@ typedef struct bignum_data {
BIGNUM * bn;
} bignum_data_t;
static int nse_pushbn( lua_State *L, BIGNUM *num )
{
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = num;
return 1;
}
static int l_bignum_bin2bn( lua_State *L ) /** bignum_bin2bn( string s ) */
{
size_t len;
const unsigned char * s = (unsigned char *) luaL_checklstring( L, 1, &len );
BIGNUM * num = BN_new();
BN_bin2bn( s, len, num );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = num;
return 1;
return nse_pushbn(L, num);
}
static int l_bignum_dec2bn( lua_State *L ) /** bignum_dec2bn( string s ) */
@@ -48,11 +53,7 @@ static int l_bignum_dec2bn( lua_State *L ) /** bignum_dec2bn( string s ) */
const char * s = luaL_checkstring( L, 1 );
BIGNUM * num = BN_new();
BN_dec2bn( &num, s );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = num;
return 1;
return nse_pushbn(L, num);
}
static int l_bignum_hex2bn( lua_State *L ) /** bignum_hex2bn( string s ) */
@@ -60,11 +61,7 @@ static int l_bignum_hex2bn( lua_State *L ) /** bignum_hex2bn( string s ) */
const char * s = luaL_checkstring( L, 1 );
BIGNUM * num = BN_new();
BN_hex2bn( &num, s );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = num;
return 1;
return nse_pushbn(L, num);
}
static int l_bignum_rand( lua_State *L ) /** bignum_rand( number bits ) */
@@ -72,11 +69,7 @@ static int l_bignum_rand( lua_State *L ) /** bignum_rand( number bits ) */
size_t bits = luaL_checkint( L, 1 );
BIGNUM * num = BN_new();
BN_rand( num, bits, -1, 0 );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = num;
return 1;
return nse_pushbn(L, num);
}
static int l_bignum_pseudo_rand( lua_State *L ) /** bignum_pseudo_rand( number bits ) */
@@ -84,11 +77,7 @@ static int l_bignum_pseudo_rand( lua_State *L ) /** bignum_pseudo_rand( number b
size_t bits = luaL_checkint( L, 1 );
BIGNUM * num = BN_new();
BN_pseudo_rand( num, bits, -1, 0 );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = num;
return 1;
return nse_pushbn(L, num);
}
static int l_bignum_mod_exp( lua_State *L ) /** bignum_mod_exp( BIGNUM a, BIGNUM p, BIGNUM m ) */
@@ -100,11 +89,7 @@ static int l_bignum_mod_exp( lua_State *L ) /** bignum_mod_exp( BIGNUM a, BIGNUM
BN_CTX * ctx = BN_CTX_new();
BN_mod_exp( result, a->bn, p->bn, m->bn, ctx );
BN_CTX_free( ctx );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = result;
return 1;
return nse_pushbn(L, result);
}
static int l_bignum_add( lua_State *L ) /** bignum_add( BIGNUM a, BIGNUM b ) */
@@ -113,11 +98,7 @@ static int l_bignum_add( lua_State *L ) /** bignum_add( BIGNUM a, BIGNUM b ) */
bignum_data_t * b = (bignum_data_t *) luaL_checkudata(L, 2, "BIGNUM");
BIGNUM * result = BN_new();
BN_add( result, a->bn, b->bn );
bignum_data_t * data = (bignum_data_t *) lua_newuserdata( L, sizeof(bignum_data_t));
luaL_getmetatable( L, "BIGNUM" );
lua_setmetatable( L, -2 );
data->bn = result;
return 1;
return nse_pushbn(L, result);
}
static int l_bignum_num_bits( lua_State *L ) /** bignum_num_bits( BIGNUM bn ) */