NAME
X509_verify_cert —
discover and verify X509 certificate
chain
SYNOPSIS
#include
<openssl/x509.h>
int
X509_verify_cert(X509_STORE_CTX
*ctx);
DESCRIPTION
TheX509_verify_cert()
function attempts to discover and validate a certificate chain based on
parameters in ctx.
Applications rarely call this function directly, but it is used by OpenSSL internally for certificate validation, in both the S/MIME and SSL/TLS code.
RETURN VALUES
If a complete chain can be built and validated this function returns 1, otherwise it returns a value <= 0 indicating failure.
Additional error information can be obtained by examining ctx, using X509_STORE_CTX_get_error(3).
SEE ALSO
openssl(1), X509_STORE_CTX_get_error(3), X509_STORE_CTX_new(3)
HISTORY
X509_verify_cert() first appeared in
SSLeay 0.8.0 and has been available since OpenBSD
2.4.
BUGS
This function uses the header
<openssl/x509.h> as opposed
to most chain verification functions which use
<openssl/x509_vfy.h>.