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

 /*
      This file is part of libmicrohttpd
      Copyright (C) 2007-2021 Christian Grothoff
      Copyright (C) 2014-2022 Evgeny Grin

      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., 51 Franklin Street, Fifth Floor,
      Boston, MA 02110-1301, USA.
 */

 /**
  * @file test_get_iovec.c
  * @brief  Testcase for libmicrohttpd response from scatter/gather array
  * @author Christian Grothoff
  * @author Karlson2k (Evgeny Grin)
  * @author Lawrence Sebald
  */

 /*
  * This test is largely derived from the test_get_sendfile.c file, with the
  * daemon using MHD_create_response_from_iovec instead of working from an fd.
  */

 #include "mhd_options.h"
 #include "platform.h"
 #include <curl/curl.h>
 #include <microhttpd.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <sys/types.h>
 #include <fcntl.h>
 #ifdef HAVE_STDBOOL_H
 #include <stdbool.h>
 #endif
 #include "mhd_sockets.h"
 #include "mhd_has_in_name.h"

 #ifndef WINDOWS
 #include <sys/socket.h>
 #include <unistd.h>
 #endif

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

 #define TESTSTR_IOVLEN 20480
 #define TESTSTR_IOVCNT 20
 #define TESTSTR_SIZE   (TESTSTR_IOVCNT * TESTSTR_IOVLEN)

 static int oneone;

 static int readbuf[TESTSTR_SIZE * 2 / sizeof(int)];

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


 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)
     _exit (7);                   /* overflow */
   memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
   cbc->pos += size * nmemb;
   return size * nmemb;
 }


 static void
 iov_free_callback (void *cls)
 {
   free (cls);
 }


 struct iovncont_data
 {
   void *ptrs[TESTSTR_IOVCNT];
 };

 static void
 iovncont_free_callback (void *cls)
 {
   struct iovncont_data *data = (struct iovncont_data *) cls;
   unsigned int i;

   for (i = 0; i < TESTSTR_IOVCNT; ++i)
     free (data->ptrs[i]);
   free (data);
 }


 static int
 check_read_data (const void *ptr, size_t len)
 {
   const int *buf;
   size_t i;

   if (len % sizeof(int))
     return -1;

   buf = (const int *) ptr;

   for (i = 0; i < len / sizeof(int); ++i)
   {
     if (buf[i] != (int) i)
       return -1;
   }

   return 0;
 }


 static enum MHD_Result
 ahc_cont (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 **req_cls)
 {
   static int ptr;
   struct MHD_Response *response;
   enum MHD_Result ret;
   int *data;
   struct MHD_IoVec iov[TESTSTR_IOVCNT];
   int i;
   (void) cls;
   (void) url; (void) version;                      /* Unused. Silent compiler warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler warning. */

   if (0 != strcmp (MHD_HTTP_METHOD_GET, method))
     return MHD_NO;              /* unexpected method */
   if (&ptr != *req_cls)
   {
     *req_cls = &ptr;
     return MHD_YES;
   }
   *req_cls = NULL;

   /* Create some test data. */
   if (NULL == (data = malloc (TESTSTR_SIZE)))
     return MHD_NO;

   for (i = 0; i < (int) (TESTSTR_SIZE / sizeof(int)); ++i)
   {
     data[i] = i;
   }

   for (i = 0; i < TESTSTR_IOVCNT; ++i)
   {
     iov[i].iov_base = data + (((size_t) i)
                               * (TESTSTR_SIZE / TESTSTR_IOVCNT / sizeof(int)));
     iov[i].iov_len = TESTSTR_SIZE / TESTSTR_IOVCNT;
   }

   response = MHD_create_response_from_iovec (iov,
                                              TESTSTR_IOVCNT,
                                              &iov_free_callback,
                                              data);
   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
   MHD_destroy_response (response);
   if (ret == MHD_NO)
     abort ();
   return ret;
 }


 static enum MHD_Result
 ahc_ncont (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 **req_cls)
 {
   static int ptr;
   struct MHD_Response *response;
   enum MHD_Result ret;
   struct MHD_IoVec iov[TESTSTR_IOVCNT];
   struct iovncont_data *clear_cls;
   int i, j;
   (void) cls;
   (void) url; (void) version;                      /* Unused. Silent compiler warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler warning. */

   if (0 != strcmp (MHD_HTTP_METHOD_GET, method))
     return MHD_NO;              /* unexpected method */
   if (&ptr != *req_cls)
   {
     *req_cls = &ptr;
     return MHD_YES;
   }
   *req_cls = NULL;

   clear_cls = malloc (sizeof(struct iovncont_data));
   if (NULL == clear_cls)
     abort ();
   memset (iov, 0, sizeof(struct MHD_IoVec) * TESTSTR_IOVCNT);

   /* Create some test data. */
   for (j = TESTSTR_IOVCNT - 1; j >= 0; --j)
   {
     int *data;
     data = malloc (TESTSTR_IOVLEN);
     if (NULL == data)
       abort ();
     clear_cls->ptrs[j] = (void *) data;

     for (i = 0; i < (int) (TESTSTR_IOVLEN / sizeof(int)); ++i)
     {
       data[i] = i + (j * (int) (TESTSTR_IOVLEN / sizeof(int)));
     }
     iov[j].iov_base = (const void *) data;
     iov[j].iov_len = TESTSTR_IOVLEN;

   }

   response = MHD_create_response_from_iovec (iov,
                                              TESTSTR_IOVCNT,
                                              &iovncont_free_callback,
                                              clear_cls);
   ret = MHD_queue_response (connection,
                             MHD_HTTP_OK,
                             response);
   MHD_destroy_response (response);
   if (ret == MHD_NO)
     abort ();
   return ret;
 }


 static unsigned int
 testInternalGet (bool contiguous)
 {
   struct MHD_Daemon *d;
   CURL *c;
   struct CBC cbc;
   CURLcode errornum;
   uint16_t port;

   if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
     port = 0;
   else
   {
     port = 1200;
     if (oneone)
       port += 10;
   }

   cbc.buf = (char *) readbuf;
   cbc.size = sizeof(readbuf);
   cbc.pos = 0;

   if (contiguous)
   {
     d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG,
                           port, NULL, NULL, &ahc_cont, NULL, MHD_OPTION_END);
   }
   else
   {
     d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG,
                           port, NULL, NULL, &ahc_ncont, NULL, MHD_OPTION_END);
   }

   if (d == NULL)
     return 1;
   if (0 == port)
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
   curl_easy_setopt (c, CURLOPT_PORT, (long) port);
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
   if (oneone)
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   else
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
   /* NOTE: use of CONNECTTIMEOUT without also
      setting NOSIGNAL results in really weird
      crashes on my system!*/
   curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
   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 != TESTSTR_SIZE)
     return 4;
   if (0 != check_read_data (cbc.buf, cbc.pos))
     return 8;
   return 0;
 }


 static unsigned int
 testMultithreadedGet (void)
 {
   struct MHD_Daemon *d;
   CURL *c;
   struct CBC cbc;
   CURLcode errornum;
   uint16_t port;

   if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
     port = 0;
   else
   {
     port = 1201;
     if (oneone)
       port += 10;
   }

   cbc.buf = (char *) readbuf;
   cbc.size = sizeof(readbuf);
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION
                         | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG
                         | MHD_USE_AUTO,
                         port, NULL, NULL, &ahc_cont, NULL, MHD_OPTION_END);
   if (d == NULL)
     return 16;
   if (0 == port)
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
   curl_easy_setopt (c, CURLOPT_PORT, (long) port);
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   if (oneone)
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   else
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
   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, 1L);
   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 != TESTSTR_SIZE)
     return 64;
   if (0 != check_read_data (cbc.buf, cbc.pos))
     return 128;
   return 0;
 }


 static unsigned int
 testMultithreadedPoolGet (void)
 {
   struct MHD_Daemon *d;
   CURL *c;
   struct CBC cbc;
   CURLcode errornum;
   uint16_t port;

   if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
     port = 0;
   else
   {
     port = 1202;
     if (oneone)
       port += 10;
   }

   cbc.buf = (char *) readbuf;
   cbc.size = sizeof(readbuf);
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG
                         | MHD_USE_AUTO,
                         port, NULL, NULL, &ahc_cont, NULL,
                         MHD_OPTION_THREAD_POOL_SIZE, MHD_CPU_COUNT,
                         MHD_OPTION_END);
   if (d == NULL)
     return 16;
   if (0 == port)
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
   curl_easy_setopt (c, CURLOPT_PORT, (long) port);
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   if (oneone)
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   else
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
   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, 1L);
   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 != TESTSTR_SIZE)
     return 64;
   if (0 != check_read_data (cbc.buf, cbc.pos))
     return 128;
   return 0;
 }


 static unsigned int
 testExternalGet (void)
 {
   struct MHD_Daemon *d;
   CURL *c;
   struct CBC cbc;
   CURLM *multi;
   CURLMcode mret;
   fd_set rs;
   fd_set ws;
   fd_set es;
   MHD_socket maxsock;
 #ifdef MHD_WINSOCK_SOCKETS
   int maxposixs; /* Max socket number unused on W32 */
 #else  /* MHD_POSIX_SOCKETS */
 #define maxposixs maxsock
 #endif /* MHD_POSIX_SOCKETS */
   int running;
   struct CURLMsg *msg;
   time_t start;
   struct timeval tv;
   uint16_t port;

   if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
     port = 0;
   else
   {
     port = 1203;
     if (oneone)
       port += 10;
   }

   multi = NULL;
   cbc.buf = (char *) readbuf;
   cbc.size = sizeof(readbuf);
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_ERROR_LOG,
                         port, NULL, NULL, &ahc_cont, NULL, MHD_OPTION_END);
   if (d == NULL)
     return 256;
   if (0 == port)
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }
   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
   curl_easy_setopt (c, CURLOPT_PORT, (long) port);
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
   if (oneone)
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   else
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   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, 1L);


   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))
   {
     maxsock = MHD_INVALID_SOCKET;
     maxposixs = -1;
     FD_ZERO (&rs);
     FD_ZERO (&ws);
     FD_ZERO (&es);
     curl_multi_perform (multi, &running);
     mret = curl_multi_fdset (multi, &rs, &ws, &es, &maxposixs);
     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, &maxsock))
     {
       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;
     if (-1 == select (maxposixs + 1, &rs, &ws, &es, &tv))
     {
 #ifdef MHD_POSIX_SOCKETS
       if (EINTR != errno)
       {
         fprintf (stderr, "Unexpected select() error: %d. Line: %d\n",
                  (int) errno, __LINE__);
         fflush (stderr);
         exit (99);
       }
 #else
       if ((WSAEINVAL != WSAGetLastError ()) ||
           (0 != rs.fd_count) || (0 != ws.fd_count) || (0 != es.fd_count) )
       {
         fprintf (stderr, "Unexpected select() error: %d. Line: %d\n",
                  (int) WSAGetLastError (), __LINE__);
         fflush (stderr);
         exit (99);
       }
       Sleep (1);
 #endif
     }
     curl_multi_perform (multi, &running);
     if (0 == running)
     {
       int pending;
       int curl_fine = 0;
       while (NULL != (msg = curl_multi_info_read (multi, &pending)))
       {
         if (msg->msg == CURLMSG_DONE)
         {
           if (msg->data.result == CURLE_OK)
             curl_fine = 1;
           else
           {
             fprintf (stderr,
                      "%s failed at %s:%d: `%s'\n",
                      "curl_multi_perform",
                      __FILE__,
                      __LINE__, curl_easy_strerror (msg->data.result));
             abort ();
           }
         }
       }
       if (! curl_fine)
       {
         fprintf (stderr, "libcurl haven't returned OK code\n");
         abort ();
       }
       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 != TESTSTR_SIZE)
     return 8192;
   if (0 != check_read_data (cbc.buf, cbc.pos))
     return 16384;
   return 0;
 }


 static unsigned int
 testUnknownPortGet (void)
 {
   struct MHD_Daemon *d;
   const union MHD_DaemonInfo *di;
   CURL *c;
   struct CBC cbc;
   CURLcode errornum;
   uint16_t port;
   char buf[2048];

   struct sockaddr_in addr;
   socklen_t addr_len = sizeof(addr);
   memset (&addr, 0, sizeof(addr));
   addr.sin_family = AF_INET;
   addr.sin_port = 0;
   addr.sin_addr.s_addr = INADDR_ANY;

   cbc.buf = (char *) readbuf;
   cbc.size = sizeof(readbuf);
   cbc.pos = 0;
   d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG,
                         0, NULL, NULL, &ahc_cont, NULL,
                         MHD_OPTION_SOCK_ADDR, &addr,
                         MHD_OPTION_END);
   if (d == NULL)
     return 32768;

   if (MHD_NO == MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
   {
     di = MHD_get_daemon_info (d, MHD_DAEMON_INFO_LISTEN_FD);
     if (di == NULL)
       return 65536;

     if (0 != getsockname (di->listen_fd, (struct sockaddr *) &addr, &addr_len))
       return 131072;

     if (addr.sin_family != AF_INET)
       return 26214;
     port = ntohs (addr.sin_port);
   }
   else
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }

   snprintf (buf, sizeof(buf), "http://127.0.0.1:%u/",
             (unsigned int) port);

   c = curl_easy_init ();
   curl_easy_setopt (c, CURLOPT_URL, buf);
   curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
   curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
   curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
   curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
   curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
   if (oneone)
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
   else
     curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
   /* NOTE: use of CONNECTTIMEOUT without also
      setting NOSIGNAL results in really weird
      crashes on my system! */
   curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
   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 524288;
   }
   curl_easy_cleanup (c);
   MHD_stop_daemon (d);
   if (cbc.pos != TESTSTR_SIZE)
     return 1048576;
   if (0 != check_read_data (cbc.buf, cbc.pos))
     return 2097152;
   return 0;
 }


 int
 main (int argc, char *const *argv)
 {
   unsigned int errorCount = 0;
   (void) argc;   /* Unused. Silent compiler warning. */

   if ((NULL == argv) || (0 == argv[0]))
     return 99;
   oneone = has_in_name (argv[0], "11");

   if (0 != curl_global_init (CURL_GLOBAL_WIN32))
     return 2;
   if (MHD_YES == MHD_is_feature_supported (MHD_FEATURE_THREADS))
   {
     errorCount += testInternalGet (true);
     errorCount += testInternalGet (false);
     errorCount += testMultithreadedGet ();
     errorCount += testMultithreadedPoolGet ();
     errorCount += testUnknownPortGet ();
   }
   errorCount += testExternalGet ();
   if (errorCount != 0)
     fprintf (stderr, "Error (code: %u)\n", errorCount);
   curl_global_cleanup ();
   return (0 == errorCount) ? 0 : 1;       /* 0 == pass */
 }
	/*
	This file is part of libmicrohttpd
	Copyright (C) 2007-2021 Christian Grothoff
	Copyright (C) 2014-2022 Evgeny Grin

	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., 51 Franklin Street, Fifth Floor,
	Boston, MA 02110-1301, USA.
	*/

	/**
	* @file test_get_iovec.c
	* @brief Testcase for libmicrohttpd response from scatter/gather array
	* @author Christian Grothoff
	* @author Karlson2k (Evgeny Grin)
	* @author Lawrence Sebald
	*/

	/*
	* This test is largely derived from the test_get_sendfile.c file, with the
	* daemon using MHD_create_response_from_iovec instead of working from an fd.
	*/

	#include "mhd_options.h"
	#include "platform.h"
	#include <curl/curl.h>
	#include <microhttpd.h>
	#include <stdlib.h>
	#include <string.h>
	#include <time.h>
	#include <sys/types.h>
	#include <fcntl.h>
	#ifdef HAVE_STDBOOL_H
	#include <stdbool.h>
	#endif
	#include "mhd_sockets.h"
	#include "mhd_has_in_name.h"

	#ifndef WINDOWS
	#include <sys/socket.h>
	#include <unistd.h>
	#endif

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

	#define TESTSTR_IOVLEN 20480
	#define TESTSTR_IOVCNT 20
	#define TESTSTR_SIZE (TESTSTR_IOVCNT * TESTSTR_IOVLEN)

	static int oneone;

	static int readbuf[TESTSTR_SIZE * 2 / sizeof(int)];

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


	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)
	_exit (7); /* overflow */
	memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
	cbc->pos += size * nmemb;
	return size * nmemb;
	}


	static void
	iov_free_callback (void *cls)
	{
	free (cls);
	}


	struct iovncont_data
	{
	void *ptrs[TESTSTR_IOVCNT];
	};

	static void
	iovncont_free_callback (void *cls)
	{
	struct iovncont_data data = (struct iovncont_data ) cls;
	unsigned int i;

	for (i = 0; i < TESTSTR_IOVCNT; ++i)
	free (data->ptrs[i]);
	free (data);
	}


	static int
	check_read_data (const void *ptr, size_t len)
	{
	const int *buf;
	size_t i;

	if (len % sizeof(int))
	return -1;

	buf = (const int *) ptr;

	for (i = 0; i < len / sizeof(int); ++i)
	{
	if (buf[i] != (int) i)
	return -1;
	}

	return 0;
	}


	static enum MHD_Result
	ahc_cont (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 **req_cls)
	{
	static int ptr;
	struct MHD_Response *response;
	enum MHD_Result ret;
	int *data;
	struct MHD_IoVec iov[TESTSTR_IOVCNT];
	int i;
	(void) cls;
	(void) url; (void) version; /* Unused. Silent compiler warning. */
	(void) upload_data; (void) upload_data_size; /* Unused. Silent compiler warning. */

	if (0 != strcmp (MHD_HTTP_METHOD_GET, method))
	return MHD_NO; /* unexpected method */
	if (&ptr != *req_cls)
	{
	*req_cls = &ptr;
	return MHD_YES;
	}
	*req_cls = NULL;

	/* Create some test data. */
	if (NULL == (data = malloc (TESTSTR_SIZE)))
	return MHD_NO;

	for (i = 0; i < (int) (TESTSTR_SIZE / sizeof(int)); ++i)
	{
	data[i] = i;
	}

	for (i = 0; i < TESTSTR_IOVCNT; ++i)
	{
	iov[i].iov_base = data + (((size_t) i)
	* (TESTSTR_SIZE / TESTSTR_IOVCNT / sizeof(int)));
	iov[i].iov_len = TESTSTR_SIZE / TESTSTR_IOVCNT;
	}

	response = MHD_create_response_from_iovec (iov,
	TESTSTR_IOVCNT,
	&iov_free_callback,
	data);
	ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
	MHD_destroy_response (response);
	if (ret == MHD_NO)
	abort ();
	return ret;
	}


	static enum MHD_Result
	ahc_ncont (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 **req_cls)
	{
	static int ptr;
	struct MHD_Response *response;
	enum MHD_Result ret;
	struct MHD_IoVec iov[TESTSTR_IOVCNT];
	struct iovncont_data *clear_cls;
	int i, j;
	(void) cls;
	(void) url; (void) version; /* Unused. Silent compiler warning. */
	(void) upload_data; (void) upload_data_size; /* Unused. Silent compiler warning. */

	if (0 != strcmp (MHD_HTTP_METHOD_GET, method))
	return MHD_NO; /* unexpected method */
	if (&ptr != *req_cls)
	{
	*req_cls = &ptr;
	return MHD_YES;
	}
	*req_cls = NULL;

	clear_cls = malloc (sizeof(struct iovncont_data));
	if (NULL == clear_cls)
	abort ();
	memset (iov, 0, sizeof(struct MHD_IoVec) * TESTSTR_IOVCNT);

	/* Create some test data. */
	for (j = TESTSTR_IOVCNT - 1; j >= 0; --j)
	{
	int *data;
	data = malloc (TESTSTR_IOVLEN);
	if (NULL == data)
	abort ();
	clear_cls->ptrs[j] = (void *) data;

	for (i = 0; i < (int) (TESTSTR_IOVLEN / sizeof(int)); ++i)
	{
	data[i] = i + (j * (int) (TESTSTR_IOVLEN / sizeof(int)));
	}
	iov[j].iov_base = (const void *) data;
	iov[j].iov_len = TESTSTR_IOVLEN;

	}

	response = MHD_create_response_from_iovec (iov,
	TESTSTR_IOVCNT,
	&iovncont_free_callback,
	clear_cls);
	ret = MHD_queue_response (connection,
	MHD_HTTP_OK,
	response);
	MHD_destroy_response (response);
	if (ret == MHD_NO)
	abort ();
	return ret;
	}


	static unsigned int
	testInternalGet (bool contiguous)
	{
	struct MHD_Daemon *d;
	CURL *c;
	struct CBC cbc;
	CURLcode errornum;
	uint16_t port;

	if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	port = 0;
	else
	{
	port = 1200;
	if (oneone)
	port += 10;
	}

	cbc.buf = (char *) readbuf;
	cbc.size = sizeof(readbuf);
	cbc.pos = 0;

	if (contiguous)
	{
	d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG,
	port, NULL, NULL, &ahc_cont, NULL, MHD_OPTION_END);
	}
	else
	{
	d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG,
	port, NULL, NULL, &ahc_ncont, NULL, MHD_OPTION_END);
	}

	if (d == NULL)
	return 1;
	if (0 == port)
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
	curl_easy_setopt (c, CURLOPT_PORT, (long) port);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	if (oneone)
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	else
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
	/* NOTE: use of CONNECTTIMEOUT without also
	setting NOSIGNAL results in really weird
	crashes on my system!*/
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
	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 != TESTSTR_SIZE)
	return 4;
	if (0 != check_read_data (cbc.buf, cbc.pos))
	return 8;
	return 0;
	}


	static unsigned int
	testMultithreadedGet (void)
	{
	struct MHD_Daemon *d;
	CURL *c;
	struct CBC cbc;
	CURLcode errornum;
	uint16_t port;

	if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	port = 0;
	else
	{
	port = 1201;
	if (oneone)
	port += 10;
	}

	cbc.buf = (char *) readbuf;
	cbc.size = sizeof(readbuf);
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION
	\| MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG
	\| MHD_USE_AUTO,
	port, NULL, NULL, &ahc_cont, NULL, MHD_OPTION_END);
	if (d == NULL)
	return 16;
	if (0 == port)
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
	curl_easy_setopt (c, CURLOPT_PORT, (long) port);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	if (oneone)
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	else
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
	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, 1L);
	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 != TESTSTR_SIZE)
	return 64;
	if (0 != check_read_data (cbc.buf, cbc.pos))
	return 128;
	return 0;
	}


	static unsigned int
	testMultithreadedPoolGet (void)
	{
	struct MHD_Daemon *d;
	CURL *c;
	struct CBC cbc;
	CURLcode errornum;
	uint16_t port;

	if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	port = 0;
	else
	{
	port = 1202;
	if (oneone)
	port += 10;
	}

	cbc.buf = (char *) readbuf;
	cbc.size = sizeof(readbuf);
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG
	\| MHD_USE_AUTO,
	port, NULL, NULL, &ahc_cont, NULL,
	MHD_OPTION_THREAD_POOL_SIZE, MHD_CPU_COUNT,
	MHD_OPTION_END);
	if (d == NULL)
	return 16;
	if (0 == port)
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
	curl_easy_setopt (c, CURLOPT_PORT, (long) port);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	if (oneone)
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	else
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
	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, 1L);
	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 != TESTSTR_SIZE)
	return 64;
	if (0 != check_read_data (cbc.buf, cbc.pos))
	return 128;
	return 0;
	}


	static unsigned int
	testExternalGet (void)
	{
	struct MHD_Daemon *d;
	CURL *c;
	struct CBC cbc;
	CURLM *multi;
	CURLMcode mret;
	fd_set rs;
	fd_set ws;
	fd_set es;
	MHD_socket maxsock;
	#ifdef MHD_WINSOCK_SOCKETS
	int maxposixs; /* Max socket number unused on W32 */
	#else /* MHD_POSIX_SOCKETS */
	#define maxposixs maxsock
	#endif /* MHD_POSIX_SOCKETS */
	int running;
	struct CURLMsg *msg;
	time_t start;
	struct timeval tv;
	uint16_t port;

	if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	port = 0;
	else
	{
	port = 1203;
	if (oneone)
	port += 10;
	}

	multi = NULL;
	cbc.buf = (char *) readbuf;
	cbc.size = sizeof(readbuf);
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_ERROR_LOG,
	port, NULL, NULL, &ahc_cont, NULL, MHD_OPTION_END);
	if (d == NULL)
	return 256;
	if (0 == port)
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}
	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/");
	curl_easy_setopt (c, CURLOPT_PORT, (long) port);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	if (oneone)
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	else
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	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, 1L);


	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))
	{
	maxsock = MHD_INVALID_SOCKET;
	maxposixs = -1;
	FD_ZERO (&rs);
	FD_ZERO (&ws);
	FD_ZERO (&es);
	curl_multi_perform (multi, &running);
	mret = curl_multi_fdset (multi, &rs, &ws, &es, &maxposixs);
	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, &maxsock))
	{
	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;
	if (-1 == select (maxposixs + 1, &rs, &ws, &es, &tv))
	{
	#ifdef MHD_POSIX_SOCKETS
	if (EINTR != errno)
	{
	fprintf (stderr, "Unexpected select() error: %d. Line: %d\n",
	(int) errno, __LINE__);
	fflush (stderr);
	exit (99);
	}
	#else
	if ((WSAEINVAL != WSAGetLastError ()) \|\|
	(0 != rs.fd_count) \|\| (0 != ws.fd_count) \|\| (0 != es.fd_count) )
	{
	fprintf (stderr, "Unexpected select() error: %d. Line: %d\n",
	(int) WSAGetLastError (), __LINE__);
	fflush (stderr);
	exit (99);
	}
	Sleep (1);
	#endif
	}
	curl_multi_perform (multi, &running);
	if (0 == running)
	{
	int pending;
	int curl_fine = 0;
	while (NULL != (msg = curl_multi_info_read (multi, &pending)))
	{
	if (msg->msg == CURLMSG_DONE)
	{
	if (msg->data.result == CURLE_OK)
	curl_fine = 1;
	else
	{
	fprintf (stderr,
	"%s failed at %s:%d: `%s'\n",
	"curl_multi_perform",
	__FILE__,
	__LINE__, curl_easy_strerror (msg->data.result));
	abort ();
	}
	}
	}
	if (! curl_fine)
	{
	fprintf (stderr, "libcurl haven't returned OK code\n");
	abort ();
	}
	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 != TESTSTR_SIZE)
	return 8192;
	if (0 != check_read_data (cbc.buf, cbc.pos))
	return 16384;
	return 0;
	}


	static unsigned int
	testUnknownPortGet (void)
	{
	struct MHD_Daemon *d;
	const union MHD_DaemonInfo *di;
	CURL *c;
	struct CBC cbc;
	CURLcode errornum;
	uint16_t port;
	char buf[2048];

	struct sockaddr_in addr;
	socklen_t addr_len = sizeof(addr);
	memset (&addr, 0, sizeof(addr));
	addr.sin_family = AF_INET;
	addr.sin_port = 0;
	addr.sin_addr.s_addr = INADDR_ANY;

	cbc.buf = (char *) readbuf;
	cbc.size = sizeof(readbuf);
	cbc.pos = 0;
	d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG,
	0, NULL, NULL, &ahc_cont, NULL,
	MHD_OPTION_SOCK_ADDR, &addr,
	MHD_OPTION_END);
	if (d == NULL)
	return 32768;

	if (MHD_NO == MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	{
	di = MHD_get_daemon_info (d, MHD_DAEMON_INFO_LISTEN_FD);
	if (di == NULL)
	return 65536;

	if (0 != getsockname (di->listen_fd, (struct sockaddr *) &addr, &addr_len))
	return 131072;

	if (addr.sin_family != AF_INET)
	return 26214;
	port = ntohs (addr.sin_port);
	}
	else
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}

	snprintf (buf, sizeof(buf), "http://127.0.0.1:%u/",
	(unsigned int) port);

	c = curl_easy_init ();
	curl_easy_setopt (c, CURLOPT_URL, buf);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	if (oneone)
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	else
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
	/* NOTE: use of CONNECTTIMEOUT without also
	setting NOSIGNAL results in really weird
	crashes on my system! */
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
	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 524288;
	}
	curl_easy_cleanup (c);
	MHD_stop_daemon (d);
	if (cbc.pos != TESTSTR_SIZE)
	return 1048576;
	if (0 != check_read_data (cbc.buf, cbc.pos))
	return 2097152;
	return 0;
	}


	int
	main (int argc, char const argv)
	{
	unsigned int errorCount = 0;
	(void) argc; /* Unused. Silent compiler warning. */

	if ((NULL == argv) \|\| (0 == argv[0]))
	return 99;
	oneone = has_in_name (argv[0], "11");

	if (0 != curl_global_init (CURL_GLOBAL_WIN32))
	return 2;
	if (MHD_YES == MHD_is_feature_supported (MHD_FEATURE_THREADS))
	{
	errorCount += testInternalGet (true);
	errorCount += testInternalGet (false);
	errorCount += testMultithreadedGet ();
	errorCount += testMultithreadedPoolGet ();
	errorCount += testUnknownPortGet ();
	}
	errorCount += testExternalGet ();
	if (errorCount != 0)
	fprintf (stderr, "Error (code: %u)\n", errorCount);
	curl_global_cleanup ();
	return (0 == errorCount) ? 0 : 1; /* 0 == pass */
	}