X509_GetCertCountInP7Chain

CryptoSys PKI Pro Manual

Return number of certificates in a PKCS-7 "certs-only" certificate chain file.


Public Declare Function X509_GetCertCountInP7Chain Lib "diCrPKI.dll" (ByVal strP7cFile As String, ByVal nOptions As Long) As Long

nRet = X509_GetCertCountInP7Chain(strP7cFile, nOptions) As Long


long __stdcall X509_GetCertCountInP7Chain(const char *szP7cFile, long nOptions);

szP7cFile: [in] filename of the PKCS-7 "certs-only" file, or a string containing its PEM textual representation.
nOptions: [in] option flags: not used in this release. Specify zero.

Number of X.509 certificates found or a negative error code.

static int dipki::X509::GetCertCountInP7Chain (const std::string &inputFile)

static X509.get_cert_count_from_p7(p7file)

This function will also work with CMS signed data objects, too.

nCerts = X509_GetCertCountInP7Chain("certs.p7c", 0)

will return the number of certificates found in the file certs.p7c.