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Diffstat (limited to 'security/nss/lib/freebl/ecl/ecl_curve.c')
-rw-r--r--security/nss/lib/freebl/ecl/ecl_curve.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/ecl/ecl_curve.c b/security/nss/lib/freebl/ecl/ecl_curve.c
new file mode 100644
index 000000000..cf090cfc3
--- /dev/null
+++ b/security/nss/lib/freebl/ecl/ecl_curve.c
@@ -0,0 +1,93 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ecl.h"
+#include "ecl-curve.h"
+#include "ecl-priv.h"
+#include <stdlib.h>
+#include <string.h>
+
+#define CHECK(func) \
+ if ((func) == NULL) { \
+ res = 0; \
+ goto CLEANUP; \
+ }
+
+/* Duplicates an ECCurveParams */
+ECCurveParams *
+ECCurveParams_dup(const ECCurveParams *params)
+{
+ int res = 1;
+ ECCurveParams *ret = NULL;
+
+ CHECK(ret = (ECCurveParams *)calloc(1, sizeof(ECCurveParams)));
+ if (params->text != NULL) {
+ CHECK(ret->text = strdup(params->text));
+ }
+ ret->field = params->field;
+ ret->size = params->size;
+ if (params->irr != NULL) {
+ CHECK(ret->irr = strdup(params->irr));
+ }
+ if (params->curvea != NULL) {
+ CHECK(ret->curvea = strdup(params->curvea));
+ }
+ if (params->curveb != NULL) {
+ CHECK(ret->curveb = strdup(params->curveb));
+ }
+ if (params->genx != NULL) {
+ CHECK(ret->genx = strdup(params->genx));
+ }
+ if (params->geny != NULL) {
+ CHECK(ret->geny = strdup(params->geny));
+ }
+ if (params->order != NULL) {
+ CHECK(ret->order = strdup(params->order));
+ }
+ ret->cofactor = params->cofactor;
+
+CLEANUP:
+ if (res != 1) {
+ EC_FreeCurveParams(ret);
+ return NULL;
+ }
+ return ret;
+}
+
+#undef CHECK
+
+/* Construct ECCurveParams from an ECCurveName */
+ECCurveParams *
+EC_GetNamedCurveParams(const ECCurveName name)
+{
+ if ((name <= ECCurve_noName) || (ECCurve_pastLastCurve <= name) ||
+ (ecCurve_map[name] == NULL)) {
+ return NULL;
+ } else {
+ return ECCurveParams_dup(ecCurve_map[name]);
+ }
+}
+
+/* Free the memory allocated (if any) to an ECCurveParams object. */
+void
+EC_FreeCurveParams(ECCurveParams *params)
+{
+ if (params == NULL)
+ return;
+ if (params->text != NULL)
+ free(params->text);
+ if (params->irr != NULL)
+ free(params->irr);
+ if (params->curvea != NULL)
+ free(params->curvea);
+ if (params->curveb != NULL)
+ free(params->curveb);
+ if (params->genx != NULL)
+ free(params->genx);
+ if (params->geny != NULL)
+ free(params->geny);
+ if (params->order != NULL)
+ free(params->order);
+ free(params);
+}