static const char *get_cert_common_name(PCCERT_CONTEXT cert)
{
static char buf[1024];
const char *name = NULL;
CERT_NAME_INFO *nameInfo;
DWORD size;
BOOL ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_NAME,
cert->pCertInfo->Subject.pbData, cert->pCertInfo->Subject.cbData,
CRYPT_DECODE_NOCOPY_FLAG | CRYPT_DECODE_ALLOC_FLAG, NULL, &nameInfo,
&size);
if (ret)
{
PCERT_RDN_ATTR commonName = CertFindRDNAttr(szOID_COMMON_NAME,
nameInfo);
if (commonName)
{
CertRDNValueToStrA(commonName->dwValueType,
&commonName->Value, buf, sizeof(buf));
name = buf;
}
LocalFree(nameInfo);
}
return name;
}
DWORD WINAPI CertNameToStrA(DWORD dwCertEncodingType, PCERT_NAME_BLOB pName,
DWORD dwStrType, LPSTR psz, DWORD csz)
{
static const DWORD unsupportedFlags = CERT_NAME_STR_NO_QUOTING_FLAG |
CERT_NAME_STR_REVERSE_FLAG | CERT_NAME_STR_ENABLE_T61_UNICODE_FLAG;
static const char commaSep[] = ", ";
static const char semiSep[] = "; ";
static const char crlfSep[] = "\r\n";
static const char plusSep[] = " + ";
static const char spaceSep[] = " ";
DWORD ret = 0, bytes = 0;
BOOL bRet;
CERT_NAME_INFO *info;
TRACE("(%ld, %p, %08lx, %p, %ld)\n", dwCertEncodingType, pName, dwStrType,
psz, csz);
if (dwStrType & unsupportedFlags)
FIXME("unsupported flags: %08lx\n", dwStrType & unsupportedFlags);
bRet = CryptDecodeObjectEx(dwCertEncodingType, X509_NAME, pName->pbData,
pName->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &bytes);
if (bRet)
{
DWORD i, j, sepLen, rdnSepLen;
LPCSTR sep, rdnSep;
if (dwStrType & CERT_NAME_STR_SEMICOLON_FLAG)
sep = semiSep;
else if (dwStrType & CERT_NAME_STR_CRLF_FLAG)
sep = crlfSep;
else
sep = commaSep;
sepLen = strlen(sep);
if (dwStrType & CERT_NAME_STR_NO_PLUS_FLAG)
rdnSep = spaceSep;
else
rdnSep = plusSep;
rdnSepLen = strlen(rdnSep);
for (i = 0; (!psz || ret < csz) && i < info->cRDN; i++)
{
for (j = 0; (!psz || ret < csz) && j < info->rgRDN[i].cRDNAttr; j++)
{
DWORD chars;
char prefixBuf[10]; /* big enough for GivenName */
LPCSTR prefix = NULL;
if ((dwStrType & 0x000000ff) == CERT_OID_NAME_STR)
prefix = info->rgRDN[i].rgRDNAttr[j].pszObjId;
else if ((dwStrType & 0x000000ff) == CERT_X500_NAME_STR)
{
PCCRYPT_OID_INFO oidInfo = CryptFindOIDInfo(
CRYPT_OID_INFO_OID_KEY,
info->rgRDN[i].rgRDNAttr[j].pszObjId,
CRYPT_RDN_ATTR_OID_GROUP_ID);
if (oidInfo)
{
WideCharToMultiByte(CP_ACP, 0, oidInfo->pwszName, -1,
prefixBuf, sizeof(prefixBuf), NULL, NULL);
prefix = prefixBuf;
}
else
prefix = info->rgRDN[i].rgRDNAttr[j].pszObjId;
}
if (prefix)
{
/* - 1 is needed to account for the NULL terminator. */
chars = CRYPT_AddPrefixA(prefix,
psz ? psz + ret : NULL, psz ? csz - ret - 1 : 0);
ret += chars;
csz -= chars;
}
/* FIXME: handle quoting */
chars = CertRDNValueToStrA(
info->rgRDN[i].rgRDNAttr[j].dwValueType,
&info->rgRDN[i].rgRDNAttr[j].Value, psz ? psz + ret : NULL,
psz ? csz - ret : 0);
if (chars)
ret += chars - 1;
if (j < info->rgRDN[i].cRDNAttr - 1)
{
if (psz && ret < csz - rdnSepLen - 1)
memcpy(psz + ret, rdnSep, rdnSepLen);
ret += rdnSepLen;
}
}
if (i < info->cRDN - 1)
{
if (psz && ret < csz - sepLen - 1)
memcpy(psz + ret, sep, sepLen);
ret += sepLen;
}
}
LocalFree(info);
}
if (psz && csz)
{
*(psz + ret) = '\0';
csz--;
ret++;
}
else
ret++;
TRACE("Returning %s\n", debugstr_a(psz));
return ret;
}
