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NULL-check s2n_cert_chain_and_key_get_pkey_type #3064

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Sep 28, 2021
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NULL-check s2n_cert_chain_and_key_get_pkey_type #3064

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5 changes: 5 additions & 0 deletions crypto/s2n_certificate.c
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Original file line number Diff line number Diff line change
Expand Up @@ -619,6 +619,11 @@ void *s2n_cert_chain_and_key_get_ctx(struct s2n_cert_chain_and_key *cert_and_key

s2n_pkey_type s2n_cert_chain_and_key_get_pkey_type(struct s2n_cert_chain_and_key *chain_and_key)
{
if (chain_and_key == NULL
|| chain_and_key->cert_chain == NULL
|| chain_and_key->cert_chain->head == NULL) {
return S2N_PKEY_TYPE_UNKNOWN;
}
return chain_and_key->cert_chain->head->pkey_type;
}

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