/*
 * Copyright (c) 2012, 2013
 *      Inferno Nettverk A/S, Norway.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. The above copyright notice, this list of conditions and the following
 *    disclaimer must appear in all copies of the software, derivative works
 *    or modified versions, and any portions thereof, aswell as in all
 *    supporting documentation.
 * 2. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by
 *      Inferno Nettverk A/S, Norway.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Inferno Nettverk A/S requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  sdc@inet.no
 *  Inferno Nettverk A/S
 *  Oslo Research Park
 *  Gaustadalléen 21
 *  NO-0349 Oslo
 *  Norway
 *
 * any improvements or extensions that they make and grant Inferno Nettverk A/S
 * the rights to redistribute these changes.
 */


#include "common.h"

static const char rcsid[] =
"$Id: fmt_protocol.c,v 1.5 2013/10/27 15:24:42 karls Exp $";

char *
fmtresponseerror(received, expected, emsg, emsglen)
   const ssize_t received;
   const size_t expected;
   char *emsg;
   const size_t emsglen;
{

   switch (received) {
      case -1:
         snprintf(emsg, emsglen, "error reading proxy server response: %s",
                  strerror(errno));
         break;

      case 0:
         snprintf(emsg, emsglen,
                 "premature eof from proxy server while waiting for response");
         break;

      default:
         snprintf(emsg, emsglen,
                 "got %ld byte size response from proxy server, expected %lu",
                 (long)received, (unsigned long)expected);
   }

   return emsg;
}

char *
fmtversionerror(expected, received, emsg, emsglen)
   const int expected;
   const int received;
   char *emsg;
   const size_t emsglen;
{
   snprintf(emsg, emsglen,
            "unexpected protocol version in response from proxy server.  "
            "Expected version %d, received version %d",
            expected, received);

   return emsg;
}