src/testcurl/test_put_chunked.c - manifest_repos/libmicrohttpd - Git at Google

 /*
      This file is part of libmicrohttpd
      Copyright (C) 2007 Christian Grothoff

      libmicrohttpd is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
      by the Free Software Foundation; either version 2, or (at your
      option) any later version.

      libmicrohttpd is distributed in the hope that it will be useful, but
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with libmicrohttpd; see the file COPYING.  If not, write to the
      Free Software Foundation, Inc., 59 Temple Place - Suite 330,
      Boston, MA 02111-1307, USA.
 */

 /**
  * @file daemontest_put_chunked.c
  * @brief Testcase for libmicrohttpd PUT operations with chunked encoding
  *        for the upload data
  * @author Christian Grothoff
  */

 #include "MHD_config.h"
 #include "platform.h"
 #include <curl/curl.h>
 #include <microhttpd.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>

 #ifndef WINDOWS
 #include <unistd.h>
 #endif

 #if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
 #undef CPU_COUNT
 #endif
 #if !defined(CPU_COUNT)
 #define CPU_COUNT 2
 #endif

 struct CBC
 {
   char *buf;
   size_t pos;
   size_t size;
 };

 static size_t
 putBuffer (void *stream, size_t size, size_t nmemb, void *ptr)
 {
   unsigned int *pos = ptr;
   unsigned int wrt;

   wrt = size * nmemb;
   if (wrt > 8 - (*pos))
     wrt = 8 - (*pos);
   if (wrt > 4)
     wrt = 4;                    /* only send half at first => force multiple chunks! */
   memcpy (stream, &("Hello123"[*pos]), wrt);
   (*pos) += wrt;
   return wrt;
 }

 static size_t
 copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 {
   struct CBC *cbc = ctx;

   if (cbc->pos + size * nmemb > cbc->size)
     return 0;                   /* overflow */
   memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
   cbc->pos += size * nmemb;
   return size * nmemb;
 }

 static int
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
           const char *method,
           const char *version,
           const char *upload_data, size_t *upload_data_size,
           void **unused)
 {
   int *done = cls;
   struct MHD_Response *response;
   int ret;
   int have;

   if (0 != strcmp ("PUT", method))
     return MHD_NO;              /* unexpected method */
   if ((*done) < 8)
     {
       have = *upload_data_size;
       if (have + *done > 8)
         {
           printf ("Invalid upload data `%8s'!\n", upload_data);
           return MHD_NO;
         }
       if (0 == memcmp (upload_data, &"Hello123"[*done], have))
         {
           *done += have;
           *upload_data_size = 0;
         }
       else
         {
           printf ("Invalid upload data `%8s'!\n", upload_data);
           return MHD_NO;
         }
 #if 0
       fprintf (stderr, "Not ready for response: %u/%u\n", *done, 8);
 #endif
       return MHD_YES;
     }
   response = MHD_create_response_from_buffer (strlen (url),
 					      (void *) url,
 					      MHD_RESPMEM_MUST_COPY);
   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
   MHD_destroy_response (response);
   return ret;
 }


 static int
 testInternalPut ()
 {
   struct MHD_Daemon *d;
   CURL *c;
   char buf[2048];
   struct CBC cbc;
   unsigned int pos = 0;
   int done_flag = 0;
   CURLcode errornum;

   cbc.buf = buf;
   cbc.size = 2048;
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
                         11080,
                         NULL, NULL, &ahc_echo, &done_flag, MHD_OPTION_END);
   if (d == NULL)
     return 1;
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11080/hello_world");
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
   curl_easy_setopt (c, CURLOPT_READDATA, &pos);
   curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
   /*
      // by not giving the file size, we force chunking!
      curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
    */
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
   // NOTE: use of CONNECTTIMEOUT without also
   //   setting NOSIGNAL results in really weird
   //   crashes on my system!
   curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
   if (CURLE_OK != (errornum = curl_easy_perform (c)))
     {
       fprintf (stderr,
                "curl_easy_perform failed: `%s'\n",
                curl_easy_strerror (errornum));
       curl_easy_cleanup (c);
       MHD_stop_daemon (d);
       return 2;
     }
   curl_easy_cleanup (c);
   MHD_stop_daemon (d);
   if (cbc.pos != strlen ("/hello_world"))
     return 4;
   if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
     return 8;
   return 0;
 }

 static int
 testMultithreadedPut ()
 {
   struct MHD_Daemon *d;
   CURL *c;
   char buf[2048];
   struct CBC cbc;
   unsigned int pos = 0;
   int done_flag = 0;
   CURLcode errornum;

   cbc.buf = buf;
   cbc.size = 2048;
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
                         11081,
                         NULL, NULL, &ahc_echo, &done_flag, MHD_OPTION_END);
   if (d == NULL)
     return 16;
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11081/hello_world");
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
   curl_easy_setopt (c, CURLOPT_READDATA, &pos);
   curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
   /*
      // by not giving the file size, we force chunking!
      curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
    */
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
   // NOTE: use of CONNECTTIMEOUT without also
   //   setting NOSIGNAL results in really weird
   //   crashes on my system!
   curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
   if (CURLE_OK != (errornum = curl_easy_perform (c)))
     {
       fprintf (stderr,
                "curl_easy_perform failed: `%s'\n",
                curl_easy_strerror (errornum));
       curl_easy_cleanup (c);
       MHD_stop_daemon (d);
       return 32;
     }
   curl_easy_cleanup (c);
   MHD_stop_daemon (d);
   if (cbc.pos != strlen ("/hello_world"))
     return 64;
   if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
     return 128;

   return 0;
 }

 static int
 testMultithreadedPoolPut ()
 {
   struct MHD_Daemon *d;
   CURL *c;
   char buf[2048];
   struct CBC cbc;
   unsigned int pos = 0;
   int done_flag = 0;
   CURLcode errornum;

   cbc.buf = buf;
   cbc.size = 2048;
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
                         11081,
                         NULL, NULL, &ahc_echo, &done_flag,
                         MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT, MHD_OPTION_END);
   if (d == NULL)
     return 16;
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11081/hello_world");
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
   curl_easy_setopt (c, CURLOPT_READDATA, &pos);
   curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
   /*
      // by not giving the file size, we force chunking!
      curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
    */
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
   // NOTE: use of CONNECTTIMEOUT without also
   //   setting NOSIGNAL results in really weird
   //   crashes on my system!
   curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
   if (CURLE_OK != (errornum = curl_easy_perform (c)))
     {
       fprintf (stderr,
                "curl_easy_perform failed: `%s'\n",
                curl_easy_strerror (errornum));
       curl_easy_cleanup (c);
       MHD_stop_daemon (d);
       return 32;
     }
   curl_easy_cleanup (c);
   MHD_stop_daemon (d);
   if (cbc.pos != strlen ("/hello_world"))
     return 64;
   if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
     return 128;

   return 0;
 }


 static int
 testExternalPut ()
 {
   struct MHD_Daemon *d;
   CURL *c;
   char buf[2048];
   struct CBC cbc;
   CURLM *multi;
   CURLMcode mret;
   fd_set rs;
   fd_set ws;
   fd_set es;
   MHD_socket max;
   int running;
   struct CURLMsg *msg;
   time_t start;
   struct timeval tv;
   unsigned int pos = 0;
   int done_flag = 0;

   multi = NULL;
   cbc.buf = buf;
   cbc.size = 2048;
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_DEBUG,
                         11082,
                         NULL, NULL, &ahc_echo, &done_flag, MHD_OPTION_END);
   if (d == NULL)
     return 256;
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11082/hello_world");
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
   curl_easy_setopt (c, CURLOPT_READDATA, &pos);
   curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
   /*
      // by not giving the file size, we force chunking!
      curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
    */
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
   // NOTE: use of CONNECTTIMEOUT without also
   //   setting NOSIGNAL results in really weird
   //   crashes on my system!
   curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);


   multi = curl_multi_init ();
   if (multi == NULL)
     {
       curl_easy_cleanup (c);
       MHD_stop_daemon (d);
       return 512;
     }
   mret = curl_multi_add_handle (multi, c);
   if (mret != CURLM_OK)
     {
       curl_multi_cleanup (multi);
       curl_easy_cleanup (c);
       MHD_stop_daemon (d);
       return 1024;
     }
   start = time (NULL);
   while ((time (NULL) - start < 5) && (multi != NULL))
     {
       max = 0;
       FD_ZERO (&rs);
       FD_ZERO (&ws);
       FD_ZERO (&es);
       curl_multi_perform (multi, &running);
       mret = curl_multi_fdset (multi, &rs, &ws, &es, &max);
       if (mret != CURLM_OK)
         {
           curl_multi_remove_handle (multi, c);
           curl_multi_cleanup (multi);
           curl_easy_cleanup (c);
           MHD_stop_daemon (d);
           return 2048;
         }
       if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max))
         {
           curl_multi_remove_handle (multi, c);
           curl_multi_cleanup (multi);
           curl_easy_cleanup (c);
           MHD_stop_daemon (d);
           return 4096;
         }
       tv.tv_sec = 0;
       tv.tv_usec = 1000;
       select (max + 1, &rs, &ws, &es, &tv);
       curl_multi_perform (multi, &running);
       if (running == 0)
         {
           msg = curl_multi_info_read (multi, &running);
           if (msg == NULL)
             break;
           if (msg->msg == CURLMSG_DONE)
             {
               if (msg->data.result != CURLE_OK)
                 printf ("%s failed at %s:%d: `%s'\n",
                         "curl_multi_perform",
                         __FILE__,
                         __LINE__, curl_easy_strerror (msg->data.result));
               curl_multi_remove_handle (multi, c);
               curl_multi_cleanup (multi);
               curl_easy_cleanup (c);
               c = NULL;
               multi = NULL;
             }
         }
       MHD_run (d);
     }
   if (multi != NULL)
     {
       curl_multi_remove_handle (multi, c);
       curl_easy_cleanup (c);
       curl_multi_cleanup (multi);
     }
   MHD_stop_daemon (d);
   if (cbc.pos != strlen ("/hello_world"))
     return 8192;
   if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
     return 16384;
   return 0;
 }


 int
 main (int argc, char *const *argv)
 {
   unsigned int errorCount = 0;

   if (0 != curl_global_init (CURL_GLOBAL_WIN32))
     return 2;
   errorCount += testInternalPut ();
   errorCount += testMultithreadedPut ();
   errorCount += testMultithreadedPoolPut ();
   errorCount += testExternalPut ();
   if (errorCount != 0)
     fprintf (stderr, "Error (code: %u)\n", errorCount);
   curl_global_cleanup ();
   return errorCount != 0;       /* 0 == pass */
 }
	/*
	This file is part of libmicrohttpd
	Copyright (C) 2007 Christian Grothoff

	libmicrohttpd is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published
	by the Free Software Foundation; either version 2, or (at your
	option) any later version.

	libmicrohttpd is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with libmicrohttpd; see the file COPYING. If not, write to the
	Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	Boston, MA 02111-1307, USA.
	*/

	/**
	* @file daemontest_put_chunked.c
	* @brief Testcase for libmicrohttpd PUT operations with chunked encoding
	* for the upload data
	* @author Christian Grothoff
	*/

	#include "MHD_config.h"
	#include "platform.h"
	#include <curl/curl.h>
	#include <microhttpd.h>
	#include <stdlib.h>
	#include <string.h>
	#include <time.h>

	#ifndef WINDOWS
	#include <unistd.h>
	#endif

	#if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
	#undef CPU_COUNT
	#endif
	#if !defined(CPU_COUNT)
	#define CPU_COUNT 2
	#endif

	struct CBC
	{
	char *buf;
	size_t pos;
	size_t size;
	};

	static size_t
	putBuffer (void stream, size_t size, size_t nmemb, void ptr)
	{
	unsigned int *pos = ptr;
	unsigned int wrt;

	wrt = size * nmemb;
	if (wrt > 8 - (*pos))
	wrt = 8 - (*pos);
	if (wrt > 4)
	wrt = 4; /* only send half at first => force multiple chunks! */
	memcpy (stream, &("Hello123"[*pos]), wrt);
	(*pos) += wrt;
	return wrt;
	}

	static size_t
	copyBuffer (void ptr, size_t size, size_t nmemb, void ctx)
	{
	struct CBC *cbc = ctx;

	if (cbc->pos + size * nmemb > cbc->size)
	return 0; /* overflow */
	memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
	cbc->pos += size * nmemb;
	return size * nmemb;
	}

	static int
	ahc_echo (void *cls,
	struct MHD_Connection *connection,
	const char *url,
	const char *method,
	const char *version,
	const char upload_data, size_t upload_data_size,
	void **unused)
	{
	int *done = cls;
	struct MHD_Response *response;
	int ret;
	int have;

	if (0 != strcmp ("PUT", method))
	return MHD_NO; /* unexpected method */
	if ((*done) < 8)
	{
	have = *upload_data_size;
	if (have + *done > 8)
	{
	printf ("Invalid upload data `%8s'!\n", upload_data);
	return MHD_NO;
	}
	if (0 == memcmp (upload_data, &"Hello123"[*done], have))
	{
	*done += have;
	*upload_data_size = 0;
	}
	else
	{
	printf ("Invalid upload data `%8s'!\n", upload_data);
	return MHD_NO;
	}
	#if 0
	fprintf (stderr, "Not ready for response: %u/%u\n", *done, 8);
	#endif
	return MHD_YES;
	}
	response = MHD_create_response_from_buffer (strlen (url),
	(void *) url,
	MHD_RESPMEM_MUST_COPY);
	ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
	MHD_destroy_response (response);
	return ret;
	}


	static int
	testInternalPut ()
	{
	struct MHD_Daemon *d;
	CURL *c;
	char buf[2048];
	struct CBC cbc;
	unsigned int pos = 0;
	int done_flag = 0;
	CURLcode errornum;

	cbc.buf = buf;
	cbc.size = 2048;
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY \| MHD_USE_DEBUG,
	11080,
	NULL, NULL, &ahc_echo, &done_flag, MHD_OPTION_END);
	if (d == NULL)
	return 1;
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11080/hello_world");
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
	curl_easy_setopt (c, CURLOPT_READDATA, &pos);
	curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
	/*
	// by not giving the file size, we force chunking!
	curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
	*/
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	// NOTE: use of CONNECTTIMEOUT without also
	// setting NOSIGNAL results in really weird
	// crashes on my system!
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
	if (CURLE_OK != (errornum = curl_easy_perform (c)))
	{
	fprintf (stderr,
	"curl_easy_perform failed: `%s'\n",
	curl_easy_strerror (errornum));
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 2;
	}
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	if (cbc.pos != strlen ("/hello_world"))
	return 4;
	if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
	return 8;
	return 0;
	}

	static int
	testMultithreadedPut ()
	{
	struct MHD_Daemon *d;
	CURL *c;
	char buf[2048];
	struct CBC cbc;
	unsigned int pos = 0;
	int done_flag = 0;
	CURLcode errornum;

	cbc.buf = buf;
	cbc.size = 2048;
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION \| MHD_USE_DEBUG,
	11081,
	NULL, NULL, &ahc_echo, &done_flag, MHD_OPTION_END);
	if (d == NULL)
	return 16;
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11081/hello_world");
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
	curl_easy_setopt (c, CURLOPT_READDATA, &pos);
	curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
	/*
	// by not giving the file size, we force chunking!
	curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
	*/
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	// NOTE: use of CONNECTTIMEOUT without also
	// setting NOSIGNAL results in really weird
	// crashes on my system!
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
	if (CURLE_OK != (errornum = curl_easy_perform (c)))
	{
	fprintf (stderr,
	"curl_easy_perform failed: `%s'\n",
	curl_easy_strerror (errornum));
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 32;
	}
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	if (cbc.pos != strlen ("/hello_world"))
	return 64;
	if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
	return 128;

	return 0;
	}

	static int
	testMultithreadedPoolPut ()
	{
	struct MHD_Daemon *d;
	CURL *c;
	char buf[2048];
	struct CBC cbc;
	unsigned int pos = 0;
	int done_flag = 0;
	CURLcode errornum;

	cbc.buf = buf;
	cbc.size = 2048;
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY \| MHD_USE_DEBUG,
	11081,
	NULL, NULL, &ahc_echo, &done_flag,
	MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT, MHD_OPTION_END);
	if (d == NULL)
	return 16;
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11081/hello_world");
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
	curl_easy_setopt (c, CURLOPT_READDATA, &pos);
	curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
	/*
	// by not giving the file size, we force chunking!
	curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
	*/
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	// NOTE: use of CONNECTTIMEOUT without also
	// setting NOSIGNAL results in really weird
	// crashes on my system!
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
	if (CURLE_OK != (errornum = curl_easy_perform (c)))
	{
	fprintf (stderr,
	"curl_easy_perform failed: `%s'\n",
	curl_easy_strerror (errornum));
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 32;
	}
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	if (cbc.pos != strlen ("/hello_world"))
	return 64;
	if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
	return 128;

	return 0;
	}


	static int
	testExternalPut ()
	{
	struct MHD_Daemon *d;
	CURL *c;
	char buf[2048];
	struct CBC cbc;
	CURLM *multi;
	CURLMcode mret;
	fd_set rs;
	fd_set ws;
	fd_set es;
	MHD_socket max;
	int running;
	struct CURLMsg *msg;
	time_t start;
	struct timeval tv;
	unsigned int pos = 0;
	int done_flag = 0;

	multi = NULL;
	cbc.buf = buf;
	cbc.size = 2048;
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_DEBUG,
	11082,
	NULL, NULL, &ahc_echo, &done_flag, MHD_OPTION_END);
	if (d == NULL)
	return 256;
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:11082/hello_world");
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
	curl_easy_setopt (c, CURLOPT_READDATA, &pos);
	curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
	/*
	// by not giving the file size, we force chunking!
	curl_easy_setopt (c, CURLOPT_INFILESIZE_LARGE, (curl_off_t) 8L);
	*/
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	// NOTE: use of CONNECTTIMEOUT without also
	// setting NOSIGNAL results in really weird
	// crashes on my system!
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);


	multi = curl_multi_init ();
	if (multi == NULL)
	{
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 512;
	}
	mret = curl_multi_add_handle (multi, c);
	if (mret != CURLM_OK)
	{
	curl_multi_cleanup (multi);
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 1024;
	}
	start = time (NULL);
	while ((time (NULL) - start < 5) && (multi != NULL))
	{
	max = 0;
	FD_ZERO (&rs);
	FD_ZERO (&ws);
	FD_ZERO (&es);
	curl_multi_perform (multi, &running);
	mret = curl_multi_fdset (multi, &rs, &ws, &es, &max);
	if (mret != CURLM_OK)
	{
	curl_multi_remove_handle (multi, c);
	curl_multi_cleanup (multi);
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 2048;
	}
	if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max))
	{
	curl_multi_remove_handle (multi, c);
	curl_multi_cleanup (multi);
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	return 4096;
	}
	tv.tv_sec = 0;
	tv.tv_usec = 1000;
	select (max + 1, &rs, &ws, &es, &tv);
	curl_multi_perform (multi, &running);
	if (running == 0)
	{
	msg = curl_multi_info_read (multi, &running);
	if (msg == NULL)
	break;
	if (msg->msg == CURLMSG_DONE)
	{
	if (msg->data.result != CURLE_OK)
	printf ("%s failed at %s:%d: `%s'\n",
	"curl_multi_perform",
	__FILE__,
	__LINE__, curl_easy_strerror (msg->data.result));
	curl_multi_remove_handle (multi, c);
	curl_multi_cleanup (multi);
	curl_easy_cleanup (c);
	c = NULL;
	multi = NULL;
	}
	}
	MHD_run (d);
	}
	if (multi != NULL)
	{
	curl_multi_remove_handle (multi, c);
	curl_easy_cleanup (c);
	curl_multi_cleanup (multi);
	}
	MHD_stop_daemon (d);
	if (cbc.pos != strlen ("/hello_world"))
	return 8192;
	if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
	return 16384;
	return 0;
	}



	int
	main (int argc, char const argv)
	{
	unsigned int errorCount = 0;

	if (0 != curl_global_init (CURL_GLOBAL_WIN32))
	return 2;
	errorCount += testInternalPut ();
	errorCount += testMultithreadedPut ();
	errorCount += testMultithreadedPoolPut ();
	errorCount += testExternalPut ();
	if (errorCount != 0)
	fprintf (stderr, "Error (code: %u)\n", errorCount);
	curl_global_cleanup ();
	return errorCount != 0; /* 0 == pass */
	}