Check Remote SSH2 Banner

[volkan-k]

I think, library should check remote banner to validate the protocol...

example for libssh2_banner_receive function:

/* check remote banner */
char *std_banner_head = "SSH-2.0";
if (strstr(session->remote.banner, std_banner_head)==NULL)
{

libssh2_error(session, LIBSSH2_ERROR_BANNER_NONE,

"No SSH2 banner", 0);

return LIBSSH2_ERROR_BANNER_NONE;

}

[bagder]

This seems to have very little purpose to me. How would libssh2 succeed to otherwise negotiate a connection if it isn't SSH2 compliant enough anyway?

[sf-robot]

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