无法实现Swift SSLCreateContext

Question

I am new to iOS development, and am trying to implement an SSL connection to a custom port.

I found the code from this answer as the best/easiest implementation of a secure connection over a socket https://stackoverflow.com/a/30733961/2306428

However, I am getting these errors:

Use of unresolved identifier 'kSSLClientSide' Use of unresolved identifier 'kSSLStreamType' Use of unresolved identifier 'kSSLSessionOptionBreakOnClientAuth'

I have checked and I am running Swift version 2.1.1, using iOS 9.2 SDK and Xcode 7.2. I have even tried adding import Security but that has no effect.

What is the reason that these constants are not being found?

The line being tested is here: https://github.com/ksred/bank-ios/blob/master/Bank/TCPClient.swift#L209

Answer 1

Please use the identifiers declared in Swift:

if let sslContext = SSLCreateContext(kCFAllocatorDefault, SSLProtocolSide.ClientSide, SSLConnectionType.StreamType) {
    SSLSetIOFuncs(sslContext, sslReadCallback, sslWriteCallback)
    SSLSetConnection(sslContext, &socketfd)
    SSLSetSessionOption(sslContext, SSLSessionOption.BreakOnClientAuth, true)
    SSLHandshake(sslContext)
}