Add stock 0.9.42 source.

This is from http://www.gnu.org/software/libmicrohttpd/ (and
was verified to match the source from a local mirror).

Bug: 23101922
Change-Id: I7efc9d5065b49b8957ce41bb6afd2ce1f39c7cac
diff --git a/src/testcurl/test_process_headers.c b/src/testcurl/test_process_headers.c
new file mode 100644
index 0000000..4a219fb
--- /dev/null
+++ b/src/testcurl/test_process_headers.c
@@ -0,0 +1,434 @@
+
+/*
+     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 test_process_headers.c
+ * @brief  Testcase for HTTP header access
+ * @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
+
+static int oneone;
+
+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)
+    return 0;                   /* overflow */
+  memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
+  cbc->pos += size * nmemb;
+  return size * nmemb;
+}
+
+static int
+kv_cb (void *cls, enum MHD_ValueKind kind, const char *key, const char *value)
+{
+  if ((0 == strcmp (key, MHD_HTTP_HEADER_HOST)) &&
+      (0 == strcmp (value, "127.0.0.1:21080")) && (kind == MHD_HEADER_KIND))
+    {
+      *((int *) cls) = 1;
+      return MHD_NO;
+    }
+  return MHD_YES;
+}
+
+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)
+{
+  static int ptr;
+  const char *me = cls;
+  struct MHD_Response *response;
+  int ret;
+  const char *hdr;
+
+  if (0 != strcmp (me, method))
+    return MHD_NO;              /* unexpected method */
+  if (&ptr != *unused)
+    {
+      *unused = &ptr;
+      return MHD_YES;
+    }
+  *unused = NULL;
+  ret = 0;
+  MHD_get_connection_values (connection, MHD_HEADER_KIND, &kv_cb, &ret);
+  if (ret != 1)
+    abort ();
+  hdr = MHD_lookup_connection_value (connection, MHD_HEADER_KIND, "NotFound");
+  if (hdr != NULL)
+    abort ();
+  hdr = MHD_lookup_connection_value (connection,
+                                     MHD_HEADER_KIND, MHD_HTTP_HEADER_ACCEPT);
+  if ((hdr == NULL) || (0 != strcmp (hdr, "*/*")))
+    abort ();
+  hdr = MHD_lookup_connection_value (connection,
+                                     MHD_HEADER_KIND, MHD_HTTP_HEADER_HOST);
+  if ((hdr == NULL) || (0 != strcmp (hdr, "127.0.0.1:21080")))
+    abort ();
+  MHD_set_connection_value (connection,
+                            MHD_HEADER_KIND, "FakeHeader", "NowPresent");
+  hdr = MHD_lookup_connection_value (connection,
+                                     MHD_HEADER_KIND, "FakeHeader");
+  if ((hdr == NULL) || (0 != strcmp (hdr, "NowPresent")))
+    abort ();
+
+  response = MHD_create_response_from_buffer (strlen (url),
+					      (void *) url,
+					      MHD_RESPMEM_MUST_COPY);
+  MHD_add_response_header (response, "MyHeader", "MyValue");
+  hdr = MHD_get_response_header (response, "MyHeader");
+  if (0 != strcmp ("MyValue", hdr))
+    abort ();
+  MHD_add_response_header (response, "MyHeader", "MyValueToo");
+  if (MHD_YES != MHD_del_response_header (response, "MyHeader", "MyValue"))
+    abort ();
+  hdr = MHD_get_response_header (response, "MyHeader");
+  if (0 != strcmp ("MyValueToo", hdr))
+    abort ();
+  if (1 != MHD_get_response_headers (response, NULL, NULL))
+    abort ();
+  ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
+  MHD_destroy_response (response);
+  if (ret == MHD_NO)
+    abort ();
+  return ret;
+}
+
+
+static int
+testInternalGet ()
+{
+  struct MHD_Daemon *d;
+  CURL *c;
+  char buf[2048];
+  struct CBC cbc;
+  CURLcode errornum;
+
+  cbc.buf = buf;
+  cbc.size = 2048;
+  cbc.pos = 0;
+  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
+                        21080, NULL, NULL, &ahc_echo, "GET", MHD_OPTION_END);
+  if (d == NULL)
+    return 1;
+  c = curl_easy_init ();
+  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:21080/hello_world");
+  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
+  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
+  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
+  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, 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
+testMultithreadedGet ()
+{
+  struct MHD_Daemon *d;
+  CURL *c;
+  char buf[2048];
+  struct CBC cbc;
+  CURLcode errornum;
+
+  cbc.buf = buf;
+  cbc.size = 2048;
+  cbc.pos = 0;
+  d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
+                        21080, NULL, NULL, &ahc_echo, "GET", MHD_OPTION_END);
+  if (d == NULL)
+    return 16;
+  c = curl_easy_init ();
+  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:21080/hello_world");
+  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
+  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
+  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
+  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, 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
+testMultithreadedPoolGet ()
+{
+  struct MHD_Daemon *d;
+  CURL *c;
+  char buf[2048];
+  struct CBC cbc;
+  CURLcode errornum;
+
+  cbc.buf = buf;
+  cbc.size = 2048;
+  cbc.pos = 0;
+  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
+                        21080, NULL, NULL, &ahc_echo, "GET",
+                        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://127.0.0.1:21080/hello_world");
+  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
+  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
+  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
+  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, 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
+testExternalGet ()
+{
+  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;
+
+  multi = NULL;
+  cbc.buf = buf;
+  cbc.size = 2048;
+  cbc.pos = 0;
+  d = MHD_start_daemon (MHD_USE_DEBUG,
+                        21080, NULL, NULL, &ahc_echo, "GET", MHD_OPTION_END);
+  if (d == NULL)
+    return 256;
+  c = curl_easy_init ();
+  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:21080/hello_world");
+  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
+  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
+  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
+  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, 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;
+
+  oneone = (NULL != strrchr (argv[0], (int) '/')) ?
+    (NULL != strstr (strrchr (argv[0], (int) '/'), "11")) : 0;
+  errorCount += testMultithreadedGet ();
+  errorCount += testMultithreadedPoolGet ();
+  errorCount += testExternalGet ();
+  if (errorCount != 0)
+    fprintf (stderr, "Error (code: %u)\n", errorCount);
+  curl_global_cleanup ();
+  return errorCount != 0;       /* 0 == pass */
+}