X509_build

Build a certificate chain for target using untrusted certs and trusted store.

Synopsis

Declared in <openssl/x509_vfy.h>

stack_st_X509*
X509_build_chain(
    X509* target,
    stack_st_X509* certs,
    X509_STORE* store,
    int with_self_signed,
    OSSL_LIB_CTX* libctx,
    char const* propq);

Return Value

Newly allocated chain stack (caller frees with sk_X509_pop_free), or NULL on failure.

Parameters

Name

Description

target

End‐entity certificate to chain up from.

certs

Optional untrusted intermediate certificates, or NULL.

store

Trusted certificate store used for trust anchors, or NULL.

with_self_signed

Non‐zero to include a self‐signed trust anchor in the result.

libctx

Library context for algorithm fetches, or NULL for the default.

propq

Property query string, or NULL.

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