diff options
Diffstat (limited to 'security/nss/lib/freebl/ecl/ecl_curve.c')
-rw-r--r-- | security/nss/lib/freebl/ecl/ecl_curve.c | 93 |
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); +} |