/* Provenance: openssl/openssl evp_cipher_get_asn1_aead_params (fixed).
 * repo: openssl/openssl
 * commit: ce39170276daec87f55c39dad1f629b56344429e
 * parent: 3250efdfe99d2d7fe4fb05231add7fba864b7653
 * commit_url: https://github.com/openssl/openssl/commit/ce39170276daec87f55c39dad1f629b56344429e
 * cve: CVE-2025-15467
 * license: Apache-2.0
 * function: evp_cipher_get_asn1_aead_params
 * relpath: crypto/evp/evp_lib.c
 */

int evp_cipher_get_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
    evp_cipher_aead_asn1_params *asn1_params)
{
    int i = 0;
    long tl;
    unsigned char iv[EVP_MAX_IV_LENGTH];

    if (type == NULL || asn1_params == NULL)
        return 0;

    i = ossl_asn1_type_get_octetstring_int(type, &tl, iv, EVP_MAX_IV_LENGTH);
    if (i <= 0 || i > EVP_MAX_IV_LENGTH)
        return -1;

    memcpy(asn1_params->iv, iv, i);
    asn1_params->iv_len = i;

    return i;
}