Revision 11414f17d93ec04d2d056d5f3a87e964a7412431 authored by Matt Caswell on 23 May 2015, 20:51:21 UTC, committed by Matt Caswell on 25 May 2015, 16:52:27 UTC
If the record received is for a version that we don't support, previously we were sending an alert back. However if the incoming record already looks like an alert then probably we shouldn't do that. So suppress an outgoing alert if it looks like we've got one incoming. Reviewed-by: Kurt Roeckx <kurt@openssl.org>
1 parent 0a59e2d
GetHTTPS.cpp
/*
* An demo illustrating how to retrieve a URI from a secure HTTP server.
*
* Author: Roy Wood
* Date: September 7, 1999
* Comments: This relies heavily on my MacSockets library.
* This project is also set up so that it expects the OpenSSL source folder (0.9.4 as I write this)
* to live in a folder called "OpenSSL-0.9.4" in this project's parent folder. For example:
*
* Macintosh HD:
* Development:
* OpenSSL-0.9.4:
* (OpenSSL sources here)
* OpenSSL Example:
* (OpenSSL example junk here)
*
*
* Also-- before attempting to compile this, make sure the aliases in "OpenSSL-0.9.4:include:openssl"
* are installed! Use the AppleScript applet in the "openssl-0.9.4" folder to do this!
*/
/* modified to seed the PRNG */
/* modified to use CRandomizer for seeding */
// Include some funky libs I've developed over time
#include "CPStringUtils.hpp"
#include "ErrorHandling.hpp"
#include "MacSocket.h"
#include "Randomizer.h"
// We use the OpenSSL implementation of SSL....
// This was a lot of work to finally get going, though you wouldn't know it by the results!
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <timer.h>
// Let's try grabbing some data from here:
#define kHTTPS_DNS "www.apache-ssl.org"
#define kHTTPS_Port 443
#define kHTTPS_URI "/"
// Forward-declare this
OSErr MyMacSocket_IdleWaitCallback(void *inUserRefPtr);
// My idle-wait callback. Doesn't do much, does it? Silly cooperative multitasking.
OSErr MyMacSocket_IdleWaitCallback(void *inUserRefPtr)
{
#pragma unused(inUserRefPtr)
EventRecord theEvent;
::EventAvail(everyEvent,&theEvent);
CRandomizer *randomizer = (CRandomizer*)inUserRefPtr;
if (randomizer)
randomizer->PeriodicAction();
return(noErr);
}
// Finally!
void main(void)
{
OSErr errCode;
int theSocket = -1;
int theTimeout = 30;
SSL_CTX *ssl_ctx = nil;
SSL *ssl = nil;
char tempString[256];
UnsignedWide microTickCount;
CRandomizer randomizer;
printf("OpenSSL Demo by Roy Wood, roy@centricsystems.ca\n\n");
BailIfError(errCode = MacSocket_Startup());
// Create a socket-like object
BailIfError(errCode = MacSocket_socket(&theSocket,false,theTimeout * 60,MyMacSocket_IdleWaitCallback,&randomizer));
// Set up the connect string and try to connect
CopyCStrAndInsertCStrLongIntIntoCStr("%s:%ld",kHTTPS_DNS,kHTTPS_Port,tempString,sizeof(tempString));
printf("Connecting to %s....\n",tempString);
BailIfError(errCode = MacSocket_connect(theSocket,tempString));
// Init SSL stuff
SSL_load_error_strings();
SSLeay_add_ssl_algorithms();
// Pick the SSL method
// ssl_ctx = SSL_CTX_new(SSLv2_client_method());
ssl_ctx = SSL_CTX_new(SSLv23_client_method());
// ssl_ctx = SSL_CTX_new(SSLv3_client_method());
// Create an SSL thingey and try to negotiate the connection
ssl = SSL_new(ssl_ctx);
SSL_set_fd(ssl,theSocket);
errCode = SSL_connect(ssl);
if (errCode < 0)
{
SetErrorMessageAndLongIntAndBail("OpenSSL: Can't initiate SSL connection, SSL_connect() = ",errCode);
}
// Request the URI from the host
CopyCStrToCStr("GET ",tempString,sizeof(tempString));
ConcatCStrToCStr(kHTTPS_URI,tempString,sizeof(tempString));
ConcatCStrToCStr(" HTTP/1.0\r\n\r\n",tempString,sizeof(tempString));
errCode = SSL_write(ssl,tempString,CStrLength(tempString));
if (errCode < 0)
{
SetErrorMessageAndLongIntAndBail("OpenSSL: Error writing data via ssl, SSL_write() = ",errCode);
}
for (;;)
{
char tempString[256];
int bytesRead;
// Read some bytes and dump them to the console
bytesRead = SSL_read(ssl,tempString,sizeof(tempString) - 1);
if (bytesRead == 0 && MacSocket_RemoteEndIsClosing(theSocket))
{
break;
}
else if (bytesRead < 0)
{
SetErrorMessageAndLongIntAndBail("OpenSSL: Error reading data via ssl, SSL_read() = ",bytesRead);
}
tempString[bytesRead] = '\0';
printf("%s", tempString);
}
printf("\n\n\n");
// All done!
errCode = noErr;
EXITPOINT:
// Clean up and go home
if (theSocket >= 0)
{
MacSocket_close(theSocket);
}
if (ssl != nil)
{
SSL_free(ssl);
}
if (ssl_ctx != nil)
{
SSL_CTX_free(ssl_ctx);
}
if (errCode != noErr)
{
printf("An error occurred:\n");
printf("%s",GetErrorMessage());
}
MacSocket_Shutdown();
}

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