/* Provenance: openssl/openssl STACK_OF (fixed).
 * repo: openssl/openssl
 * commit: 80253dbdc92bec584f4a9866b43f8674156d838a
 * parent: 625faca931957719c76fb16094cf5b6e0debe23f
 * commit_url: https://github.com/openssl/openssl/commit/80253dbdc92bec584f4a9866b43f8674156d838a
 * cve: CVE-2023-0216
 * license: Apache-2.0
 * function: STACK_OF
 * relpath: crypto/pkcs7/pk7_lib.c
 */

static STACK_OF(X509) *pkcs7_get_signer_certs(const PKCS7 *p7)
{
    if (p7->d.ptr == NULL)
        return NULL;
    if (PKCS7_type_is_signed(p7))
        return p7->d.sign->cert;
    if (PKCS7_type_is_signedAndEnveloped(p7))
        return p7->d.signed_and_enveloped->cert;
    return NULL;
}