Hi guys!
I have some doubts in SSL functions, specially in SSL_read function.
I'm trying to write an HTTPS generic client (POST and GET methods must be availables), I've written the code for connection via win sockets (blocking socket) and used the next code for the SSL handshake:
if ((ctx = SSL_CTX_new (meth)) == NULL )
// Error
// Error
SSL_CTX_set_options(ctx,0);
if ((ssl = SSL_new (ctx)) == NULL)
//Error
//Error
if ((SSL_set_fd (ssl, s)) != 1)
//Error
//Error
SSL_set_connect_state(ssl);
if ((SSL_connect(ssl)) !=1 )
//Error
if ((SSL_connect(ssl)) !=1 )
//Error
/* Until here there's no problem */
The misunderstood becomes when I compose a GET request and try to recover the server's answer with SSL_read:
char read [1024];
char head[1024];
char head[1024];
sprintf(head,"GET /index.html HTTP/1.1 \t\n\t");
res = SSL_write (ssl, head, strlen(head)); // OK
// try to recover the index.html resource
memset(read, 0, sizeof(read));
res = SSL_read (ssl, &(read[0]), sizeof(read)-1);
//The last line only recover the 'H' from the HTTP/1.0 header spec; this means only read 1 byte, the docs say SSL_read attempt to read sizeof(read)-1 bytes and put them in &(read[0]... so I don't understand why I'm only getting one byte.
If I put it on bucle then I get the complete response
for (i=0; i<=70; i++)
{
res = SSL_read (ssl, &(read[0]), sizeof(read)-1); //res =0
res = SSL_get_error(ssl, res);
fprintf (stderr,"%s \n", res);
memset(read, 0, sizeof(read));
}
{
res = SSL_read (ssl, &(read[0]), sizeof(read)-1); //res =0
res = SSL_get_error(ssl, res);
fprintf (stderr,"%s \n", res);
memset(read, 0, sizeof(read));
}
HTTP/1.0 200 OK
Content-Lenght: 2428
Content-Type:text/html
<!-- DOCTYPE HTML PUBLIC ....
-->
WIN XP Pro
MVC/C++ 6.0 compiler
OpenSSL 0.9.7f
Any Suggestions or pointing will be appreciated
Best regards
Zainos
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