diff -r 000000000000 -r 6474c204b198 security/nss/lib/freebl/ecl/ecl_curve.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/security/nss/lib/freebl/ecl/ecl_curve.c Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,89 @@ +/* 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 +#include + +#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); +}