C
C
Subject Alternative Name for ICP Brasil Certs
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Demonstrates how to access the multiple names contained in the Subject Alternative Name of a certificate. This example is for an ICP Brasil certificate.Chilkat C Downloads
#include <C_CkCert.h>
#include <C_CkXml.h>
void ChilkatSample(void)
{
BOOL success;
HCkCert cert;
const char *subjectAltNameXml;
HCkXml xml;
const char *oid;
const char *name;
int i;
int count_i;
success = FALSE;
cert = CkCert_Create();
success = CkCert_LoadFromFile(cert,"qa_data/certs/testIcpBrasil.cer");
if (success == FALSE) {
printf("%s\n",CkCert_lastErrorText(cert));
CkCert_Dispose(cert);
return;
}
// If the cert's Subject Alternative Name contains multiple values, each specified by an OID,
// then the Rfc822Name property returns XML.
subjectAltNameXml = CkCert_rfc822Name(cert);
printf("%s\n",subjectAltNameXml);
// Here's a sample of the subjectAltNameXml:
// <SubjectAltName>
// <name type="oid" oid="2.16.76.1.3.4">290999653223955019700000000000000000000150424SRJUXPTS</name>
// <name type="oid" oid="2.16.76.1.3.2">JOAO SILVA</name>
// <name type="oid" oid="2.16.76.1.3.3">02408939000115</name>
// <name type="oid" oid="2.16.76.1.3.7">000000000000</name>
// </SubjectAltName>
// The XML can be parsed like this:
xml = CkXml_Create();
CkXml_LoadXml(xml,subjectAltNameXml);
i = 0;
count_i = CkXml_NumChildrenHavingTag(xml,"name");
while (i < count_i) {
CkXml_putI(xml,i);
oid = CkXml_chilkatPath(xml,"name[i]|(oid)");
name = CkXml_getChildContent(xml,"name[i]");
printf("%s: %s\n",oid,name);
i = i + 1;
}
CkCert_Dispose(cert);
CkXml_Dispose(xml);
}