Sample code for 30+ languages & platforms
PowerBuilder

Enumerate Server-Advertised Acceptable Client CAs

See more Socket/SSL/TLS Examples

Demonstrates Socket.GetSslAcceptableClientCaDn, which returns a certificate-authority distinguished name advertised by a TLS server when it requests a client certificate.

Background. Valid indexes range from 0 through NumSslAcceptableClientCAs minus one. A client can use these names to select an appropriate client certificate.

Chilkat PowerBuilder Downloads

PowerBuilder
integer li_rc
integer li_Success
oleobject loo_Socket
integer li_BTls
integer li_MaxWaitMs
integer li_NumCAs
integer i
string ls_CaDn

li_Success = 0

loo_Socket = create oleobject
li_rc = loo_Socket.ConnectToNewObject("Chilkat.Socket")
if li_rc < 0 then
    destroy loo_Socket
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Connect to the server using TLS.
li_BTls = 1
li_MaxWaitMs = 5000
li_Success = loo_Socket.Connect("example.com",5000,li_BTls,li_MaxWaitMs)
if li_Success = 0 then
    Write-Debug loo_Socket.LastErrorText
    destroy loo_Socket
    return
end if

//  After connecting to a server that requests a client certificate, enumerate the certificate-
//  authority distinguished names the server advertised as acceptable.
li_NumCAs = loo_Socket.NumSslAcceptableClientCAs

for i = 0 to li_NumCAs - 1
    ls_CaDn = loo_Socket.GetSslAcceptableClientCaDn(i)
    if loo_Socket.LastMethodSuccess = 0 then
        Write-Debug loo_Socket.LastErrorText
        destroy loo_Socket
        return
    end if

    Write-Debug ls_CaDn
next


destroy loo_Socket