Added two tests with non-standard symbols in requests

3 files changed, 1169 insertions, 0 deletions

diff --git a/src/testcurl/.gitignore b/src/testcurl/.gitignore
index 5f06c4fa..45b3fd0d 100644
--- a/src/testcurl/.gitignore
+++ b/src/testcurl/.gitignore
@@ -147,3 +147,5 @@ core
 /test_toolarge_reply_header_name
 /test_toolarge_reply_header_value
 /test_toolarge_reply_headers
+/test_tricky_url
+/test_tricky_header2
\ No newline at end of file
diff --git a/src/testcurl/Makefile.am b/src/testcurl/Makefile.am
index f5b651c3..40a9fb13 100644
--- a/src/testcurl/Makefile.am
+++ b/src/testcurl/Makefile.am
@@ -107,6 +107,8 @@ check_PROGRAMS = \
   test_toolarge_reply_header_name \
   test_toolarge_reply_header_value \
   test_toolarge_reply_headers \
+  test_tricky_url \
+  test_tricky_header2 \
   test_large_put \
   test_get11 \
   test_get_iovec11 \
@@ -455,3 +457,10 @@ test_toolarge_reply_header_value_SOURCES = \
 
 test_toolarge_reply_headers_SOURCES = \
   test_toolarge.c ../microhttpd/test_helpers.h
+
+test_tricky_url_SOURCES = \
+  test_tricky.c ../microhttpd/test_helpers.h
+
+test_tricky_header2_SOURCES = \
+  test_tricky.c ../microhttpd/test_helpers.h
+  
\ No newline at end of file
diff --git a/src/testcurl/test_tricky.c b/src/testcurl/test_tricky.c
new file mode 100644
index 00000000..72b7485e
--- /dev/null
+++ b/src/testcurl/test_tricky.c
@@ -0,0 +1,1158 @@
+/*
+     This file is part of libmicrohttpd
+     Copyright (C) 2014-2021 Evgeny Grin (Karlson2k)
+     Copyright (C) 2007, 2009, 2011 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., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
+*/
+/**
+ * @file test_toolarge.c
+ * @brief  Testcase for handling of untypical data.
+ * @author Karlson2k (Evgeny Grin)
+ * @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>
+#include "test_helpers.h"
+#include "mhd_sockets.h" /* only macros used */
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif /* HAVE_STRINGS_H */
+
+#ifdef _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif /* !WIN32_LEAN_AND_MEAN */
+#include <windows.h>
+#endif
+
+#ifndef WINDOWS
+#include <unistd.h>
+#include <sys/socket.h>
+#endif
+
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif /* HAVE_LIMITS_H */
+
+#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
+#if MHD_CPU_COUNT > 32
+#undef MHD_CPU_COUNT
+/* Limit to reasonable value */
+#define MHD_CPU_COUNT 32
+#endif /* MHD_CPU_COUNT > 32 */
+
+
+#if defined(HAVE___FUNC__)
+#define externalErrorExit(ignore) \
+    _externalErrorExit_func(NULL, __func__, __LINE__)
+#define externalErrorExitDesc(errDesc) \
+    _externalErrorExit_func(errDesc, __func__, __LINE__)
+#define libcurlErrorExit(ignore) \
+    _libcurlErrorExit_func(NULL, __func__, __LINE__)
+#define libcurlErrorExitDesc(errDesc) \
+    _libcurlErrorExit_func(errDesc, __func__, __LINE__)
+#define mhdErrorExit(ignore) \
+    _mhdErrorExit_func(NULL, __func__, __LINE__)
+#define mhdErrorExitDesc(errDesc) \
+    _mhdErrorExit_func(errDesc, __func__, __LINE__)
+#elif defined(HAVE___FUNCTION__)
+#define externalErrorExit(ignore) \
+    _externalErrorExit_func(NULL, __FUNCTION__, __LINE__)
+#define externalErrorExitDesc(errDesc) \
+    _externalErrorExit_func(errDesc, __FUNCTION__, __LINE__)
+#define libcurlErrorExit(ignore) \
+    _libcurlErrorExit_func(NULL, __FUNCTION__, __LINE__)
+#define libcurlErrorExitDesc(errDesc) \
+    _libcurlErrorExit_func(errDesc, __FUNCTION__, __LINE__)
+#define mhdErrorExit(ignore) \
+    _mhdErrorExit_func(NULL, __FUNCTION__, __LINE__)
+#define mhdErrorExitDesc(errDesc) \
+    _mhdErrorExit_func(errDesc, __FUNCTION__, __LINE__)
+#else
+#define externalErrorExit(ignore) _externalErrorExit_func(NULL, NULL, __LINE__)
+#define externalErrorExitDesc(errDesc) \
+  _externalErrorExit_func(errDesc, NULL, __LINE__)
+#define libcurlErrorExit(ignore) _libcurlErrorExit_func(NULL, NULL, __LINE__)
+#define libcurlErrorExitDesc(errDesc) \
+  _libcurlErrorExit_func(errDesc, NULL, __LINE__)
+#define mhdErrorExit(ignore) _mhdErrorExit_func(NULL, NULL, __LINE__)
+#define mhdErrorExitDesc(errDesc) _mhdErrorExit_func(errDesc, NULL, __LINE__)
+#endif
+
+
+_MHD_NORETURN static void
+_externalErrorExit_func (const char *errDesc, const char *funcName, int lineNum)
+{
+  if ((NULL != errDesc) && (0 != errDesc[0]))
+    fprintf (stderr, "%s", errDesc);
+  else
+    fprintf (stderr, "System or external library call failed");
+  if ((NULL != funcName) && (0 != funcName[0]))
+    fprintf (stderr, " in %s", funcName);
+  if (0 < lineNum)
+    fprintf (stderr, " at line %d", lineNum);
+
+  fprintf (stderr, ".\nLast errno value: %d (%s)\n", (int) errno,
+           strerror (errno));
+#ifdef MHD_WINSOCK_SOCKETS
+  fprintf (stderr, "WSAGetLastError() value: %d\n", (int) WSAGetLastError ());
+#endif /* MHD_WINSOCK_SOCKETS */
+  fflush (stderr);
+  exit (99);
+}
+
+
+static char libcurl_errbuf[CURL_ERROR_SIZE] = "";
+
+_MHD_NORETURN static void
+_libcurlErrorExit_func (const char *errDesc, const char *funcName, int lineNum)
+{
+  if ((NULL != errDesc) && (0 != errDesc[0]))
+    fprintf (stderr, "%s", errDesc);
+  else
+    fprintf (stderr, "CURL library call failed");
+  if ((NULL != funcName) && (0 != funcName[0]))
+    fprintf (stderr, " in %s", funcName);
+  if (0 < lineNum)
+    fprintf (stderr, " at line %d", lineNum);
+
+  fprintf (stderr, ".\nLast errno value: %d (%s)\n", (int) errno,
+           strerror (errno));
+  if (0 != libcurl_errbuf[0])
+    fprintf (stderr, "Last libcurl error details: %s\n", libcurl_errbuf);
+
+  fflush (stderr);
+  exit (99);
+}
+
+
+_MHD_NORETURN static void
+_mhdErrorExit_func (const char *errDesc, const char *funcName, int lineNum)
+{
+  if ((NULL != errDesc) && (0 != errDesc[0]))
+    fprintf (stderr, "%s", errDesc);
+  else
+    fprintf (stderr, "MHD unexpected error");
+  if ((NULL != funcName) && (0 != funcName[0]))
+    fprintf (stderr, " in %s", funcName);
+  if (0 < lineNum)
+    fprintf (stderr, " at line %d", lineNum);
+
+  fprintf (stderr, ".\nLast errno value: %d (%s)\n", (int) errno,
+           strerror (errno));
+
+  fflush (stderr);
+  exit (8);
+}
+
+
+/* Could be increased to facilitate debugging */
+#define TIMEOUTS_VAL 5
+
+#define EXPECTED_URI_BASE_PATH  "/a"
+
+#define EXPECTED_URI_BASE_PATH_TRICKY  "/one\rtwo"
+
+#define URL_SCHEME "http:/" "/"
+
+#define URL_HOST "127.0.0.1"
+
+#define URL_SCHEME_HOST URL_SCHEME URL_HOST
+
+#define HEADER1_NAME "First"
+#define HEADER1_VALUE "1st"
+#define HEADER1 HEADER1_NAME ": " HEADER1_VALUE
+#define HEADER2_NAME "Second"
+#define HEADER2CR_VALUE "2\rnd"
+#define HEADER2CR HEADER2_NAME ": " HEADER2CR_VALUE
+/* Use headers when it would be properly supported by MHD
+#define HEADER3CR_NAME "Thi\rrd"
+#define HEADER3CR_VALUE "3r\rd"
+#define HEADER3CR HEADER3CR_NAME ": " HEADER3CR_VALUE
+*/
+#define HEADER4_NAME "Normal"
+#define HEADER4_VALUE "it's fine"
+#define HEADER4 HEADER4_NAME ": " HEADER4_VALUE
+
+/* Global parameters */
+static int verbose;                 /**< Be verbose */
+static int oneone;                  /**< If false use HTTP/1.0 for requests*/
+static int global_port;             /**< MHD daemons listen port number */
+static int response_timeout_val = TIMEOUTS_VAL;
+
+static int tricky_url;              /**< Tricky request URL */
+static int tricky_header2;          /**< Tricky request header2 */
+
+/* Current test parameters */
+/* * Moved to local variables * */
+
+/* Static helper variables */
+/* * None for this test * */
+
+static void
+test_global_init (void)
+{
+  libcurl_errbuf[0] = 0;
+
+  if (0 != curl_global_init (CURL_GLOBAL_WIN32))
+    externalErrorExit ();
+}
+
+
+static void
+test_global_cleanup (void)
+{
+  curl_global_cleanup ();
+}
+
+
+struct headers_check_result
+{
+  int dummy; /* no checks in this test */
+};
+
+
+size_t
+lcurl_hdr_callback (char *buffer, size_t size, size_t nitems,
+                    void *userdata)
+{
+  const size_t data_size = size * nitems;
+  struct headers_check_result *check_res =
+    (struct headers_check_result *) userdata;
+
+  /* no checks in this test */
+  (void) check_res; (void) buffer;
+
+  return data_size;
+}
+
+
+struct lcurl_data_cb_param
+{
+  char *buf;
+  size_t pos;
+  size_t size;
+};
+
+
+static size_t
+copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
+{
+  struct lcurl_data_cb_param *cbc = ctx;
+
+  if (cbc->pos + size * nmemb > cbc->size)
+    externalErrorExit ();  /* overflow */
+  memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
+  cbc->pos += size * nmemb;
+  return size * nmemb;
+}
+
+
+struct check_uri_cls
+{
+  const char *volatile uri;
+};
+
+static void *
+check_uri_cb (void *cls,
+              const char *uri,
+              struct MHD_Connection *con)
+{
+  struct check_uri_cls *param = (struct check_uri_cls *) cls;
+  (void) con;
+
+  if (0 != strcmp (param->uri,
+                   uri))
+  {
+    fprintf (stderr,
+             "Wrong URI: `%s', line: %d\n",
+             uri, __LINE__);
+    exit (22);
+  }
+  return NULL;
+}
+
+
+struct mhd_header_checker_param
+{
+  int found_header1;
+  int found_header2;
+  int found_header4;
+};
+
+enum MHD_Result
+headerCheckerInterator (void *cls,
+                        enum MHD_ValueKind kind,
+                        const char *key,
+                        size_t key_size,
+                        const char *value,
+                        size_t value_size)
+{
+  struct mhd_header_checker_param *const param =
+    (struct mhd_header_checker_param *) cls;
+
+  if (NULL == param)
+    mhdErrorExitDesc ("cls parameter is NULL");
+
+  if (MHD_HEADER_KIND != kind)
+    return MHD_YES; /* Continue iteration */
+
+  if (0 == key_size)
+    mhdErrorExitDesc ("Zero key length");
+
+  if ((strlen (HEADER1_NAME) == key_size) &&
+      (0 == memcmp (key, HEADER1_NAME, key_size)))
+  {
+    if ((strlen (HEADER1_VALUE) == value_size) &&
+        (0 == memcmp (value, HEADER1_VALUE, value_size)))
+      param->found_header1 = 1;
+    else
+      fprintf (stderr, "Unexpected header value: '%.*s', expected: '%s'\n",
+               (int) value_size, value, HEADER1_VALUE);
+  }
+  else if ((strlen (HEADER2_NAME) == key_size) &&
+           (0 == memcmp (key, HEADER2_NAME, key_size)))
+  {
+    if ((strlen (HEADER2CR_VALUE) == value_size) &&
+        (0 == memcmp (value, HEADER2CR_VALUE, value_size)))
+      param->found_header2 = 1;
+    else
+      fprintf (stderr, "Unexpected header value: '%.*s', expected: '%s'\n",
+               (int) value_size, value, HEADER2CR_VALUE);
+  }
+  else if ((strlen (HEADER4_NAME) == key_size) &&
+           (0 == memcmp (key, HEADER4_NAME, key_size)))
+  {
+    if ((strlen (HEADER4_VALUE) == value_size) &&
+        (0 == memcmp (value, HEADER4_VALUE, value_size)))
+      param->found_header4 = 1;
+    else
+      fprintf (stderr, "Unexpected header value: '%.*s', expected: '%s'\n",
+               (int) value_size, value, HEADER4_VALUE);
+  }
+  return MHD_YES;
+}
+
+
+struct ahc_cls_type
+{
+  const char *volatile rp_data;
+  volatile size_t rp_data_size;
+  struct mhd_header_checker_param header_check_param;
+  const char *volatile rq_method;
+  const char *volatile rq_url;
+};
+
+
+static enum MHD_Result
+ahcCheck (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 **con_cls)
+{
+  static int ptr;
+  struct MHD_Response *response;
+  enum MHD_Result ret;
+  struct ahc_cls_type *const param = (struct ahc_cls_type *) cls;
+
+  if (0 != strcmp (version, MHD_HTTP_VERSION_1_1))
+    mhdErrorExitDesc ("Unexpected HTTP version");
+
+  if (0 != strcmp (url, param->rq_url))
+    mhdErrorExitDesc ("Unexpected URI");
+
+  if (NULL != upload_data)
+    mhdErrorExitDesc ("'upload_data' is not NULL");
+
+  if (NULL == upload_data_size)
+    mhdErrorExitDesc ("'upload_data_size' pointer is not NULL");
+
+  if (0 != *upload_data_size)
+    mhdErrorExitDesc ("'*upload_data_size' value is not zero");
+
+  if (NULL == param)
+    mhdErrorExitDesc ("cls parameter is NULL");
+
+  if (0 != strcmp (param->rq_method, method))
+    mhdErrorExitDesc ("Unexpected request method");
+
+  if (&ptr != *con_cls)
+  {
+    *con_cls = &ptr;
+    return MHD_YES;
+  }
+  *con_cls = NULL;
+
+  if (1 > MHD_get_connection_values_n (connection, MHD_HEADER_KIND,
+                                       &headerCheckerInterator,
+                                       &param->header_check_param))
+    mhdErrorExitDesc ("Wrong number of headers in the request");
+
+  response = MHD_create_response_from_buffer (param->rp_data_size,
+                                              (void*) param->rp_data,
+                                              MHD_RESPMEM_MUST_COPY);
+  if (NULL == response)
+    mhdErrorExitDesc ("Failed to create response");
+
+  ret = MHD_queue_response (connection,
+                            MHD_HTTP_OK,
+                            response);
+  MHD_destroy_response (response);
+  if (MHD_YES != ret)
+    mhdErrorExitDesc ("Failed to queue response");
+
+  return ret;
+}
+
+
+struct curlQueryParams
+{
+  /* Destination path for CURL query */
+  const char *queryPath;
+
+#if CURL_AT_LEAST_VERSION (7, 62, 0)
+  CURLU *url;
+#endif /* CURL_AT_LEAST_VERSION(7, 62, 0) */
+
+  /* Custom query method, NULL for default */
+  const char *method;
+
+  /* Destination port for CURL query */
+  int queryPort;
+
+  /* List of additional request headers */
+  struct curl_slist *headers;
+
+  /* CURL query result error flag */
+  volatile int queryError;
+
+  /* Response HTTP code, zero if no response */
+  volatile int responseCode;
+};
+
+
+static CURL *
+curlEasyInitForTest (struct curlQueryParams *p,
+                     struct lcurl_data_cb_param *dcbp,
+                     struct headers_check_result *hdr_chk_result)
+{
+  CURL *c;
+
+  c = curl_easy_init ();
+  if (NULL == c)
+    libcurlErrorExitDesc ("curl_easy_init() failed");
+
+  if ((CURLE_OK != curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_URL, p->queryPath)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_PORT, (long) p->queryPort)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_WRITEFUNCTION,
+                                     &copyBuffer)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_WRITEDATA, dcbp)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT,
+                                     (long) response_timeout_val)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_TIMEOUT,
+                                     (long) response_timeout_val)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_ERRORBUFFER,
+                                     libcurl_errbuf)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_HEADERFUNCTION,
+                                     lcurl_hdr_callback)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_HEADERDATA,
+                                     hdr_chk_result)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_PATH_AS_IS,
+                                     (long) 1)) ||
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L)) ||
+      (oneone) ?
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_HTTP_VERSION,
+                                     CURL_HTTP_VERSION_1_1)) :
+      (CURLE_OK != curl_easy_setopt (c, CURLOPT_HTTP_VERSION,
+                                     CURL_HTTP_VERSION_1_0)))
+    libcurlErrorExitDesc ("curl_easy_setopt() failed");
+
+  if (CURLE_OK != curl_easy_setopt (c, CURLOPT_CUSTOMREQUEST, p->method))
+    libcurlErrorExitDesc ("curl_easy_setopt() failed");
+
+  if (CURLE_OK != curl_easy_setopt (c, CURLOPT_HTTPHEADER, p->headers))
+    libcurlErrorExitDesc ("curl_easy_setopt() failed");
+
+#if CURL_AT_LEAST_VERSION (7, 62, 0)
+  if (NULL != p->url)
+  {
+    if (CURLE_OK != curl_easy_setopt (c, CURLOPT_CURLU, p->url))
+      libcurlErrorExitDesc ("curl_easy_setopt() failed");
+  }
+#endif /* CURL_AT_LEAST_VERSION(7, 62, 0) */
+  return c;
+}
+
+
+static CURLcode
+performQueryExternal (struct MHD_Daemon *d, CURL *c)
+{
+  CURLM *multi;
+  time_t start;
+  struct timeval tv;
+  CURLcode ret;
+
+  ret = CURLE_FAILED_INIT; /* will be replaced with real result */
+  multi = NULL;
+  multi = curl_multi_init ();
+  if (multi == NULL)
+    libcurlErrorExitDesc ("curl_multi_init() failed");
+  if (CURLM_OK != curl_multi_add_handle (multi, c))
+    libcurlErrorExitDesc ("curl_multi_add_handle() failed");
+
+  start = time (NULL);
+  while (time (NULL) - start <= TIMEOUTS_VAL)
+  {
+    fd_set rs;
+    fd_set ws;
+    fd_set es;
+    MHD_socket maxMhdSk;
+    int maxCurlSk;
+    int running;
+
+    maxMhdSk = MHD_INVALID_SOCKET;
+    maxCurlSk = -1;
+    FD_ZERO (&rs);
+    FD_ZERO (&ws);
+    FD_ZERO (&es);
+    if (NULL != multi)
+    {
+      curl_multi_perform (multi, &running);
+      if (0 == running)
+      {
+        struct CURLMsg *msg;
+        int msgLeft;
+        int totalMsgs = 0;
+        do
+        {
+          msg = curl_multi_info_read (multi, &msgLeft);
+          if (NULL == msg)
+            libcurlErrorExitDesc ("curl_multi_info_read() failed");
+          totalMsgs++;
+          if (CURLMSG_DONE == msg->msg)
+            ret = msg->data.result;
+        } while (msgLeft > 0);
+        if (1 != totalMsgs)
+        {
+          fprintf (stderr,
+                   "curl_multi_info_read returned wrong "
+                   "number of results (%d).\n",
+                   totalMsgs);
+          externalErrorExit ();
+        }
+        curl_multi_remove_handle (multi, c);
+        curl_multi_cleanup (multi);
+        multi = NULL;
+      }
+      else
+      {
+        if (CURLM_OK != curl_multi_fdset (multi, &rs, &ws, &es, &maxCurlSk))
+          libcurlErrorExitDesc ("curl_multi_fdset() failed");
+      }
+    }
+    if (NULL == multi)
+    { /* libcurl has finished, check whether MHD still needs to perform cleanup */
+      unsigned long long to;
+      if ((MHD_YES != MHD_get_timeout (d, &to)) || (0 != to))
+        break; /* MHD finished as well */
+    }
+    if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &maxMhdSk))
+      mhdErrorExitDesc ("MHD_get_fdset() failed");
+    tv.tv_sec = 0;
+    tv.tv_usec = 1000;
+#ifdef MHD_POSIX_SOCKETS
+    if (maxMhdSk > maxCurlSk)
+      maxCurlSk = maxMhdSk;
+#endif /* MHD_POSIX_SOCKETS */
+    if (-1 == select (maxCurlSk + 1, &rs, &ws, &es, &tv))
+    {
+#ifdef MHD_POSIX_SOCKETS
+      if (EINTR != errno)
+        externalErrorExitDesc ("Unexpected select() error");
+#else
+      if ((WSAEINVAL != WSAGetLastError ()) ||
+          (0 != rs.fd_count) || (0 != ws.fd_count) || (0 != es.fd_count) )
+        externalErrorExitDesc ("Unexpected select() error");
+      Sleep (1);
+#endif
+    }
+    if (MHD_YES != MHD_run_from_select (d, &rs, &ws, &es))
+      mhdErrorExitDesc ("MHD_run_from_select() failed");
+  }
+
+  return ret;
+}
+
+
+/* Returns zero for successful response and non-zero for failed response */
+static int
+doCurlQueryInThread (struct MHD_Daemon *d,
+                     struct curlQueryParams *p,
+                     struct headers_check_result *hdr_res,
+                     const char *expected_data,
+                     size_t expected_data_size)
+{
+  const union MHD_DaemonInfo *dinfo;
+  CURL *c;
+  struct lcurl_data_cb_param dcbp;
+  CURLcode errornum;
+  int use_external_poll;
+  long resp_code;
+
+  dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_FLAGS);
+  if (NULL == dinfo)
+    mhdErrorExitDesc ("MHD_get_daemon_info() failed");
+  use_external_poll = (0 == (dinfo->flags
+                             & MHD_USE_INTERNAL_POLLING_THREAD));
+
+  if (NULL == p->queryPath
+#if CURL_AT_LEAST_VERSION (7, 62, 0)
+      && NULL == p->url
+#endif /* CURL_AT_LEAST_VERSION(7, 62, 0) */
+      )
+    abort ();
+
+  if (0 == p->queryPort)
+    abort ();
+
+  /* Test must not fail due to test's internal buffer shortage */
+  dcbp.size = expected_data_size * 2 + 1;
+  dcbp.buf = malloc (dcbp.size);
+  if (NULL == dcbp.buf)
+    externalErrorExit ();
+  dcbp.pos = 0;
+
+  memset (hdr_res, 0, sizeof(*hdr_res));
+
+  c = curlEasyInitForTest (p,
+                           &dcbp, hdr_res);
+
+  if (! use_external_poll)
+    errornum = curl_easy_perform (c);
+  else
+    errornum = performQueryExternal (d, c);
+
+  if (CURLE_OK != curl_easy_getinfo (c, CURLINFO_RESPONSE_CODE, &resp_code))
+    libcurlErrorExitDesc ("curl_easy_getinfo() failed");
+
+  p->responseCode = (int) resp_code;
+  if ((CURLE_OK == errornum) && (200 != resp_code))
+  {
+    fprintf (stderr,
+             "Got reply with unexpected status code: %d\n",
+             p->responseCode);
+    mhdErrorExit ();
+  }
+
+  if (CURLE_OK != errornum)
+  {
+    if ((CURLE_GOT_NOTHING != errornum) && (CURLE_RECV_ERROR != errornum)
+        && (CURLE_HTTP_RETURNED_ERROR != errornum))
+    {
+      if (CURLE_OPERATION_TIMEDOUT == errornum)
+        mhdErrorExitDesc ("Request was aborted due to timeout");
+      fprintf (stderr, "libcurl returned expected error: %s\n",
+               curl_easy_strerror (errornum));
+      mhdErrorExitDesc ("Request failed due to unexpected error");
+    }
+    p->queryError = 1;
+    if ((0 != resp_code) &&
+        ((499 < resp_code) || (400 > resp_code))) /* TODO: add all expected error codes */
+    {
+      fprintf (stderr,
+               "Got reply with unexpected status code: %ld\n",
+               resp_code);
+      mhdErrorExit ();
+    }
+  }
+  else
+  {
+    if (dcbp.pos != expected_data_size)
+      mhdErrorExit ("libcurl reports wrong size of MHD reply body data");
+    else if (0 != memcmp (expected_data, dcbp.buf,
+                          expected_data_size))
+      mhdErrorExit ("libcurl reports wrong MHD reply body data");
+    else
+      p->queryError = 0;
+  }
+
+  curl_easy_cleanup (c);
+  free (dcbp.buf);
+
+  return p->queryError;
+}
+
+
+/* Perform test queries, shut down MHD daemon, and free parameters */
+static int
+performTestQueries (struct MHD_Daemon *d, int d_port,
+                    struct ahc_cls_type *ahc_param,
+                    struct check_uri_cls *uri_cb_param)
+{
+  struct curlQueryParams qParam;
+  int ret = 0;          /* Return value */
+  struct headers_check_result rp_headers_check;
+  struct curl_slist *curl_headers;
+  curl_headers = NULL;
+
+  /* Common parameters, to be individually overridden by specific test cases */
+  qParam.queryPort = d_port;
+  qParam.method = NULL;  /* Use libcurl default: GET */
+  qParam.queryPath = URL_SCHEME_HOST EXPECTED_URI_BASE_PATH;
+#if CURL_AT_LEAST_VERSION (7, 62, 0)
+  qParam.url = NULL;
+#endif /* CURL_AT_LEAST_VERSION(7, 62, 0) */
+  qParam.headers = NULL; /* No additional headers */
+  uri_cb_param->uri = EXPECTED_URI_BASE_PATH;
+  ahc_param->rq_url = EXPECTED_URI_BASE_PATH;
+  ahc_param->rq_method = "GET"; /* Default expected method */
+
+  ahc_param->rp_data = "~";
+  ahc_param->rp_data_size = 1;
+
+  curl_headers = curl_slist_append (curl_headers, HEADER1);
+  if (NULL == curl_headers)
+    externalErrorExit ();
+  curl_headers = curl_slist_append (curl_headers, HEADER4);
+  if (NULL == curl_headers)
+    externalErrorExit ();
+  qParam.headers = curl_headers;
+
+  memset (&ahc_param->header_check_param, 0,
+          sizeof (ahc_param->header_check_param));
+
+  if (tricky_url)
+  {
+#if CURL_AT_LEAST_VERSION (7, 62, 0)
+    qParam.url = curl_url ();
+    if (NULL == qParam.url)
+      externalErrorExit ();
+
+    if ((CURLUE_OK != curl_url_set (qParam.url, CURLUPART_SCHEME, "http", 0)) ||
+        (CURLUE_OK != curl_url_set (qParam.url, CURLUPART_HOST, URL_HOST,
+                                    CURLU_PATH_AS_IS | CURLU_ALLOW_SPACE)) ||
+        (CURLUE_OK != curl_url_set (qParam.url, CURLUPART_PATH,
+                                    EXPECTED_URI_BASE_PATH_TRICKY, 0)))
+      libcurlErrorExit ();
+
+    qParam.queryPath = NULL;
+    uri_cb_param->uri = EXPECTED_URI_BASE_PATH_TRICKY;
+    ahc_param->rq_url = EXPECTED_URI_BASE_PATH_TRICKY;
+
+    if (0 != doCurlQueryInThread (d, &qParam, &rp_headers_check,
+                                  ahc_param->rp_data,
+                                  ahc_param->rp_data_size))
+    {
+      /* TODO: Allow fail only if relevant MHD mode set */
+      if (0 == qParam.responseCode)
+      {
+        fprintf (stderr, "Request failed without any valid response.\n");
+        ret = 1;
+      }
+      else
+      {
+        if (verbose)
+          printf ("Request failed with %d response code.\n",
+                  qParam.responseCode);
+        (void) qParam.responseCode; /* TODO: check for the right response code */
+        ret = 0;
+      }
+    }
+    else
+    {
+      if (200 != qParam.responseCode)
+      {
+        fprintf (stderr, "Request succeed with wrong response code: %d.\n",
+                 qParam.responseCode);
+        ret = 1;
+      }
+      else
+      {
+        ret = 0;
+        if (verbose)
+          printf ("Request succeed.\n");
+      }
+
+      if (! ahc_param->header_check_param.found_header1)
+        mhdErrorExitDesc ("Required header1 was not detected in request");
+      if (! ahc_param->header_check_param.found_header4)
+        mhdErrorExitDesc ("Required header4 was not detected in request");
+    }
+
+#else
+    fprintf ("This test requires libcurl version 7.62.0 or newer.\n");
+    abort ();
+#endif /* CURL_AT_LEAST_VERSION(7, 62, 0) */
+  }
+  else if (tricky_header2)
+  {
+    /* Reset libcurl headers */
+    qParam.headers = NULL;
+    curl_slist_free_all (curl_headers);
+    curl_headers = NULL;
+
+    /* Set special libcurl headers */
+    curl_headers = curl_slist_append (curl_headers, HEADER1);
+    if (NULL == curl_headers)
+      externalErrorExit ();
+    curl_headers = curl_slist_append (curl_headers, HEADER2CR);
+    if (NULL == curl_headers)
+      externalErrorExit ();
+    curl_headers = curl_slist_append (curl_headers, HEADER4);
+    if (NULL == curl_headers)
+      externalErrorExit ();
+    qParam.headers = curl_headers;
+
+    if (0 != doCurlQueryInThread (d, &qParam, &rp_headers_check,
+                                  ahc_param->rp_data,
+                                  ahc_param->rp_data_size))
+    {
+      /* TODO: Allow fail only if relevant MHD mode set */
+      if (0 == qParam.responseCode)
+      {
+        fprintf (stderr, "Request failed without any valid response.\n");
+        ret = 1;
+      }
+      else
+      {
+        if (verbose)
+          printf ("Request failed with %d response code.\n",
+                  qParam.responseCode);
+        (void) qParam.responseCode; /* TODO: check for the right response code */
+        ret = 0;
+      }
+    }
+    else
+    {
+      if (200 != qParam.responseCode)
+      {
+        fprintf (stderr, "Request succeed with wrong response code: %d.\n",
+                 qParam.responseCode);
+        ret = 1;
+      }
+      else
+      {
+        ret = 0;
+        if (verbose)
+          printf ("Request succeed.\n");
+      }
+
+      if (! ahc_param->header_check_param.found_header1)
+        mhdErrorExitDesc ("Required header1 was not detected in request");
+      if (! ahc_param->header_check_param.found_header2)
+        mhdErrorExitDesc ("Required header2 was not detected in request");
+      if (! ahc_param->header_check_param.found_header4)
+        mhdErrorExitDesc ("Required header4 was not detected in request");
+    }
+  }
+  else
+    externalErrorExitDesc ("No valid test test was selected");
+
+  MHD_stop_daemon (d);
+  curl_slist_free_all (curl_headers);
+  free (uri_cb_param);
+  free (ahc_param);
+
+  return ret;
+}
+
+
+enum testMhdThreadsType
+{
+  testMhdThreadExternal              = 0,
+  testMhdThreadInternal              = MHD_USE_INTERNAL_POLLING_THREAD,
+  testMhdThreadInternalPerConnection = MHD_USE_THREAD_PER_CONNECTION
+                                       | MHD_USE_INTERNAL_POLLING_THREAD,
+  testMhdThreadInternalPool
+};
+
+enum testMhdPollType
+{
+  testMhdPollBySelect = 0,
+  testMhdPollByPoll   = MHD_USE_POLL,
+  testMhdPollByEpoll  = MHD_USE_EPOLL,
+  testMhdPollAuto     = MHD_USE_AUTO
+};
+
+/* Get number of threads for thread pool depending
+ * on used poll function and test type. */
+static unsigned int
+testNumThreadsForPool (enum testMhdPollType pollType)
+{
+  int numThreads = MHD_CPU_COUNT;
+  (void) pollType; /* Don't care about pollType for this test */
+  return numThreads; /* No practical limit for non-cleanup test */
+}
+
+
+static struct MHD_Daemon *
+startTestMhdDaemon (enum testMhdThreadsType thrType,
+                    enum testMhdPollType pollType, int *pport,
+                    struct ahc_cls_type **ahc_param,
+                    struct check_uri_cls **uri_cb_param)
+{
+  struct MHD_Daemon *d;
+  const union MHD_DaemonInfo *dinfo;
+
+  if ((NULL == ahc_param) || (NULL == uri_cb_param))
+    abort ();
+
+  *ahc_param = (struct ahc_cls_type *) malloc (sizeof(struct ahc_cls_type));
+  if (NULL == *ahc_param)
+    externalErrorExit ();
+  *uri_cb_param =
+    (struct check_uri_cls *) malloc (sizeof(struct check_uri_cls));
+  if (NULL == *uri_cb_param)
+    externalErrorExit ();
+
+  if ( (0 == *pport) &&
+       (MHD_NO == MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT)) )
+  {
+    *pport = 4150;
+    if (tricky_url)
+      *pport += 1;
+    if (tricky_header2)
+      *pport += 2;
+    if (! oneone)
+      *pport += 16;
+  }
+
+  if (testMhdThreadInternalPool != thrType)
+    d = MHD_start_daemon (((int) thrType) | ((int) pollType)
+                          | (verbose ? MHD_USE_ERROR_LOG : 0),
+                          *pport, NULL, NULL,
+                          &ahcCheck, *ahc_param,
+                          MHD_OPTION_URI_LOG_CALLBACK, &check_uri_cb,
+                          *uri_cb_param,
+                          MHD_OPTION_END);
+  else
+    d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | ((int) pollType)
+                          | (verbose ? MHD_USE_ERROR_LOG : 0),
+                          *pport, NULL, NULL,
+                          &ahcCheck, *ahc_param,
+                          MHD_OPTION_THREAD_POOL_SIZE,
+                          testNumThreadsForPool (pollType),
+                          MHD_OPTION_URI_LOG_CALLBACK, &check_uri_cb,
+                          *uri_cb_param,
+                          MHD_OPTION_END);
+
+  if (NULL == d)
+  {
+    fprintf (stderr, "Failed to start MHD daemon, errno=%d.\n", errno);
+    abort ();
+  }
+
+  if (0 == *pport)
+  {
+    dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
+    if ((NULL == dinfo) || (0 == dinfo->port) )
+    {
+      fprintf (stderr, "MHD_get_daemon_info() failed.\n");
+      abort ();
+    }
+    *pport = (int) dinfo->port;
+    if (0 == global_port)
+      global_port = *pport; /* Reuse the same port for all tests */
+  }
+
+  return d;
+}
+
+
+/* Test runners */
+
+
+static int
+testExternalGet (void)
+{
+  struct MHD_Daemon *d;
+  int d_port = global_port; /* Daemon's port */
+  struct ahc_cls_type *ahc_param;
+  struct check_uri_cls *uri_cb_param;
+
+  d = startTestMhdDaemon (testMhdThreadExternal, testMhdPollBySelect, &d_port,
+                          &ahc_param, &uri_cb_param);
+
+  return performTestQueries (d, d_port, ahc_param, uri_cb_param);
+}
+
+
+static int
+testInternalGet (enum testMhdPollType pollType)
+{
+  struct MHD_Daemon *d;
+  int d_port = global_port; /* Daemon's port */
+  struct ahc_cls_type *ahc_param;
+  struct check_uri_cls *uri_cb_param;
+
+  d = startTestMhdDaemon (testMhdThreadInternal, pollType, &d_port,
+                          &ahc_param, &uri_cb_param);
+
+  return performTestQueries (d, d_port, ahc_param, uri_cb_param);
+}
+
+
+static int
+testMultithreadedGet (enum testMhdPollType pollType)
+{
+  struct MHD_Daemon *d;
+  int d_port = global_port; /* Daemon's port */
+  struct ahc_cls_type *ahc_param;
+  struct check_uri_cls *uri_cb_param;
+
+  d = startTestMhdDaemon (testMhdThreadInternalPerConnection, pollType, &d_port,
+                          &ahc_param, &uri_cb_param);
+  return performTestQueries (d, d_port, ahc_param, uri_cb_param);
+}
+
+
+static int
+testMultithreadedPoolGet (enum testMhdPollType pollType)
+{
+  struct MHD_Daemon *d;
+  int d_port = global_port; /* Daemon's port */
+  struct ahc_cls_type *ahc_param;
+  struct check_uri_cls *uri_cb_param;
+
+  d = startTestMhdDaemon (testMhdThreadInternalPool, pollType, &d_port,
+                          &ahc_param, &uri_cb_param);
+  return performTestQueries (d, d_port, ahc_param, uri_cb_param);
+}
+
+
+int
+main (int argc, char *const *argv)
+{
+  unsigned int errorCount = 0;
+  unsigned int test_result = 0;
+  verbose = 0;
+
+  if ((NULL == argv) || (0 == argv[0]))
+    return 99;
+  oneone = ! has_in_name (argv[0], "10");
+  tricky_url = has_in_name (argv[0], "_url") ? 1 : 0;
+  tricky_header2 = has_in_name (argv[0], "_header2") ? 1 : 0;
+  if (1 != tricky_url + tricky_header2)
+    return 99;
+  verbose = ! has_param (argc, argv, "-q") || has_param (argc, argv, "--quiet");
+
+#if ! CURL_AT_LEAST_VERSION (7, 62, 0)
+  if (tricky_url)
+  {
+    fprintf ("This test requires libcurl version 7.62.0 or newer.\n");
+    return 77;
+  }
+#endif /* ! CURL_AT_LEAST_VERSION(7, 62, 0) */
+
+  test_global_init ();
+
+  /* Could be set to non-zero value to enforce using specific port
+   * in the test */
+  global_port = 0;
+  test_result = testExternalGet ();
+  if (test_result)
+    fprintf (stderr, "FAILED: testExternalGet () - %u.\n", test_result);
+  else if (verbose)
+    printf ("PASSED: testExternalGet ().\n");
+  errorCount += test_result;
+  if (MHD_YES == MHD_is_feature_supported (MHD_FEATURE_THREADS))
+  {
+    test_result = testInternalGet (testMhdPollAuto);
+    if (test_result)
+      fprintf (stderr, "FAILED: testInternalGet (testMhdPollAuto) - %u.\n",
+               test_result);
+    else if (verbose)
+      printf ("PASSED: testInternalGet (testMhdPollBySelect).\n");
+    errorCount += test_result;
+#ifdef _MHD_HEAVY_TESTS
+    /* Actually tests are not heavy, but took too long to complete while
+     * not really provide any additional results. */
+    test_result = testInternalGet (testMhdPollBySelect);
+    if (test_result)
+      fprintf (stderr, "FAILED: testInternalGet (testMhdPollBySelect) - %u.\n",
+               test_result);
+    else if (verbose)
+      printf ("PASSED: testInternalGet (testMhdPollBySelect).\n");
+    errorCount += test_result;
+    test_result = testMultithreadedPoolGet (testMhdPollBySelect);
+    if (test_result)
+      fprintf (stderr,
+               "FAILED: testMultithreadedPoolGet (testMhdPollBySelect) - %u.\n",
+               test_result);
+    else if (verbose)
+      printf ("PASSED: testMultithreadedPoolGet (testMhdPollBySelect).\n");
+    errorCount += test_result;
+    test_result = testMultithreadedGet (testMhdPollBySelect);
+    if (test_result)
+      fprintf (stderr,
+               "FAILED: testMultithreadedGet (testMhdPollBySelect) - %u.\n",
+               test_result);
+    else if (verbose)
+      printf ("PASSED: testMultithreadedGet (testMhdPollBySelect).\n");
+    errorCount += test_result;
+    if (MHD_YES == MHD_is_feature_supported (MHD_FEATURE_POLL))
+    {
+      test_result = testInternalGet (testMhdPollByPoll);
+      if (test_result)
+        fprintf (stderr, "FAILED: testInternalGet (testMhdPollByPoll) - %u.\n",
+                 test_result);
+      else if (verbose)
+        printf ("PASSED: testInternalGet (testMhdPollByPoll).\n");
+      errorCount += test_result;
+    }
+    if (MHD_YES == MHD_is_feature_supported (MHD_FEATURE_EPOLL))
+    {
+      test_result = testInternalGet (testMhdPollByEpoll);
+      if (test_result)
+        fprintf (stderr, "FAILED: testInternalGet (testMhdPollByEpoll) - %u.\n",
+                 test_result);
+      else if (verbose)
+        printf ("PASSED: testInternalGet (testMhdPollByEpoll).\n");
+      errorCount += test_result;
+    }
+#else
+    /* Mute compiler warnings */
+    (void) testMultithreadedGet;
+    (void) testMultithreadedPoolGet;
+#endif /* _MHD_HEAVY_TESTS */
+  }
+  if (0 != errorCount)
+    fprintf (stderr,
+             "Error (code: %u)\n",
+             errorCount);
+  else if (verbose)
+    printf ("All tests passed.\n");
+
+  test_global_cleanup ();
+
+  return (errorCount == 0) ? 0 : 1;       /* 0 == pass */
+}