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[libmicrohttpd] 02/04: define and use 'enum MHD_Result'


From: gnunet
Subject: [libmicrohttpd] 02/04: define and use 'enum MHD_Result'
Date: Wed, 08 Apr 2020 23:47:28 +0200

This is an automated email from the git hooks/post-receive script.

grothoff pushed a commit to branch master
in repository libmicrohttpd.

commit de872dea2d88f183c3f434c694acdcdb373f639c
Author: Christian Grothoff <address@hidden>
AuthorDate: Wed Apr 8 23:36:41 2020 +0200

    define and use 'enum MHD_Result'
---
 ChangeLog                                         |   7 +-
 doc/examples/basicauthentication.c                |  62 +--
 doc/examples/hellobrowser.c                       |  25 +-
 doc/examples/largepost.c                          | 302 ++++++------
 doc/examples/logging.c                            |  18 +-
 doc/examples/responseheaders.c                    |  56 +--
 doc/examples/sessions.c                           | 561 +++++++++++-----------
 doc/examples/simplepost.c                         | 156 +++---
 doc/examples/tlsauthentication.c                  | 150 +++---
 src/examples/authorization_example.c              |   4 +-
 src/examples/benchmark.c                          |   2 +-
 src/examples/benchmark_https.c                    |   2 +-
 src/examples/chunked_example.c                    |   4 +-
 src/examples/demo.c                               |  16 +-
 src/examples/demo_https.c                         |  18 +-
 src/examples/digest_auth_example.c                |   4 +-
 src/examples/dual_stack_example.c                 |   4 +-
 src/examples/fileserver_example.c                 |   4 +-
 src/examples/fileserver_example_dirs.c            |   4 +-
 src/examples/fileserver_example_external_select.c |   4 +-
 src/examples/http_chunked_compression.c           |   8 +-
 src/examples/http_compression.c                   |  10 +-
 src/examples/https_fileserver_example.c           |   4 +-
 src/examples/minimal_example.c                    |   4 +-
 src/examples/minimal_example_comet.c              |   4 +-
 src/examples/minimal_example_empty.c              |   4 +-
 src/examples/minimal_example_empty_tls.c          |   4 +-
 src/examples/post_example.c                       |  30 +-
 src/examples/querystring_example.c                |   4 +-
 src/examples/refuse_post_example.c                |   4 +-
 src/examples/suspend_resume_epoll.c               |   4 +-
 src/examples/timeout.c                            |   4 +-
 src/examples/upgrade_example.c                    |   4 +-
 src/microhttpd/test_daemon.c                      |   6 +-
 src/microhttpd/test_postprocessor.c               |  12 +-
 src/microhttpd/test_postprocessor_amp.c           |   2 +-
 src/microhttpd/test_postprocessor_large.c         |   2 +-
 src/microhttpd/test_upgrade.c                     |   4 +-
 src/microhttpd/test_upgrade_large.c               |   4 +-
 src/testcurl/https/test_empty_response.c          |   4 +-
 src/testcurl/https/test_https_get.c               |   4 +-
 src/testcurl/https/test_https_get_select.c        |   4 +-
 src/testcurl/https/test_https_session_info.c      |  17 +-
 src/testcurl/https/tls_test_common.c              |   6 +-
 src/testcurl/https/tls_test_common.h              |   4 +-
 src/testcurl/perf_get.c                           |   4 +-
 src/testcurl/perf_get_concurrent.c                |   4 +-
 src/testcurl/test_callback.c                      |   4 +-
 src/testcurl/test_concurrent_stop.c               |   4 +-
 src/testcurl/test_delete.c                        |   4 +-
 src/testcurl/test_digestauth.c                    |   4 +-
 src/testcurl/test_digestauth_sha256.c             |   4 +-
 src/testcurl/test_digestauth_with_arguments.c     |   4 +-
 src/testcurl/test_get.c                           |   8 +-
 src/testcurl/test_get_chunked.c                   |   4 +-
 src/testcurl/test_get_response_cleanup.c          |   4 +-
 src/testcurl/test_get_sendfile.c                  |   6 +-
 src/testcurl/test_iplimit.c                       |   4 +-
 src/testcurl/test_large_put.c                     |   4 +-
 src/testcurl/test_long_header.c                   |   6 +-
 src/testcurl/test_parse_cookies.c                 |   4 +-
 src/testcurl/test_patch.c                         |   4 +-
 src/testcurl/test_post.c                          |  10 +-
 src/testcurl/test_post_loop.c                     |   4 +-
 src/testcurl/test_postform.c                      |   6 +-
 src/testcurl/test_process_arguments.c             |   4 +-
 src/testcurl/test_process_headers.c               |   6 +-
 src/testcurl/test_put.c                           |   4 +-
 src/testcurl/test_put_chunked.c                   |   4 +-
 src/testcurl/test_quiesce.c                       |   4 +-
 src/testcurl/test_quiesce_stream.c                |   4 +-
 src/testcurl/test_termination.c                   |   4 +-
 src/testcurl/test_timeout.c                       |   4 +-
 src/testcurl/test_urlparse.c                      |   6 +-
 src/testzzuf/test_get.c                           |   4 +-
 src/testzzuf/test_get_chunked.c                   |   4 +-
 src/testzzuf/test_long_header.c                   |  17 +-
 src/testzzuf/test_post.c                          |   6 +-
 src/testzzuf/test_post_form.c                     |   6 +-
 src/testzzuf/test_put.c                           |   4 +-
 src/testzzuf/test_put_chunked.c                   |   4 +-
 src/testzzuf/test_put_large.c                     |   6 +-
 82 files changed, 890 insertions(+), 857 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ca0a8847..3ce14755 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 Wed 08 Apr 2020 10:53:01 PM CEST
-    Introduce `enum MHD_Result` for #MHD_YES/#MHD_NO to avoid using 'int' so 
much. -CG
+    Introduce `enum MHD_Result` for #MHD_YES/#MHD_NO to avoid using 'int' so 
much.
+    Note that this change WILL cause compiler warnings until (most) MHD 
callbacks
+    in application code change their return type from 'int' to 'enum 
MHD_Result'.
+    That said, avoiding possible confusions of different enums is going to make
+    the code more robust in the future. For conditional compilation, test
+    for "MHD_VERSION >= 0x00097002". -CG
 
 Sat 07 Mar 2020 05:20:33 PM CET
     Fixed #6090 (misc. severe socket handling bugs on OS X). -CG
diff --git a/doc/examples/basicauthentication.c 
b/doc/examples/basicauthentication.c
index 88cb79b7..5d156f04 100644
--- a/doc/examples/basicauthentication.c
+++ b/doc/examples/basicauthentication.c
@@ -17,7 +17,7 @@
 #define PORT 8888
 
 
-static int
+static enum MHD_Result
 answer_to_connection (void *cls, struct MHD_Connection *connection,
                       const char *url, const char *method,
                       const char *version, const char *upload_data,
@@ -28,45 +28,47 @@ answer_to_connection (void *cls, struct MHD_Connection 
*connection,
   int fail;
   int ret;
   struct MHD_Response *response;
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)url;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
-  (void)upload_data;       /* Unused. Silent compiler warning. */
-  (void)upload_data_size;  /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) url;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
+  (void) upload_data;       /* Unused. Silent compiler warning. */
+  (void) upload_data_size;  /* Unused. Silent compiler warning. */
 
   if (0 != strcmp (method, "GET"))
     return MHD_NO;
   if (NULL == *con_cls)
-    {
-      *con_cls = connection;
-      return MHD_YES;
-    }
+  {
+    *con_cls = connection;
+    return MHD_YES;
+  }
   pass = NULL;
   user = MHD_basic_auth_get_username_password (connection,
                                                &pass);
   fail = ( (NULL == user) ||
-          (0 != strcmp (user, "root")) ||
-          (0 != strcmp (pass, "pa$$w0rd") ) );
-  if (NULL != user) MHD_free (user);
-  if (NULL != pass) MHD_free (pass);
+           (0 != strcmp (user, "root")) ||
+           (0 != strcmp (pass, "pa$$w0rd") ) );
+  if (NULL != user)
+    MHD_free (user);
+  if (NULL != pass)
+    MHD_free (pass);
   if (fail)
-    {
-      const char *page = "<html><body>Go away.</body></html>";
-      response =
-       MHD_create_response_from_buffer (strlen (page), (void *) page,
-                                        MHD_RESPMEM_PERSISTENT);
-      ret = MHD_queue_basic_auth_fail_response (connection,
-                                               "my realm",
-                                               response);
-    }
+  {
+    const char *page = "<html><body>Go away.</body></html>";
+    response =
+      MHD_create_response_from_buffer (strlen (page), (void *) page,
+                                       MHD_RESPMEM_PERSISTENT);
+    ret = MHD_queue_basic_auth_fail_response (connection,
+                                              "my realm",
+                                              response);
+  }
   else
-    {
-      const char *page = "<html><body>A secret.</body></html>";
-      response =
-       MHD_create_response_from_buffer (strlen (page), (void *) page,
-                                        MHD_RESPMEM_PERSISTENT);
-      ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
-    }
+  {
+    const char *page = "<html><body>A secret.</body></html>";
+    response =
+      MHD_create_response_from_buffer (strlen (page), (void *) page,
+                                       MHD_RESPMEM_PERSISTENT);
+    ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
+  }
   MHD_destroy_response (response);
   return ret;
 }
diff --git a/doc/examples/hellobrowser.c b/doc/examples/hellobrowser.c
index dce4ee6d..0c13c24d 100644
--- a/doc/examples/hellobrowser.c
+++ b/doc/examples/hellobrowser.c
@@ -14,7 +14,7 @@
 
 #define PORT 8888
 
-static int
+static enum MHD_Result
 answer_to_connection (void *cls, struct MHD_Connection *connection,
                       const char *url, const char *method,
                       const char *version, const char *upload_data,
@@ -22,18 +22,18 @@ answer_to_connection (void *cls, struct MHD_Connection 
*connection,
 {
   const char *page = "<html><body>Hello, browser!</body></html>";
   struct MHD_Response *response;
-  int ret;
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)url;               /* Unused. Silent compiler warning. */
-  (void)method;            /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
-  (void)upload_data;       /* Unused. Silent compiler warning. */
-  (void)upload_data_size;  /* Unused. Silent compiler warning. */
-  (void)con_cls;           /* Unused. Silent compiler warning. */
+  enum MHD_Result ret;
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) url;               /* Unused. Silent compiler warning. */
+  (void) method;            /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
+  (void) upload_data;       /* Unused. Silent compiler warning. */
+  (void) upload_data_size;  /* Unused. Silent compiler warning. */
+  (void) con_cls;           /* Unused. Silent compiler warning. */
 
   response =
-    MHD_create_response_from_buffer (strlen (page), (void *) page, 
-                                    MHD_RESPMEM_PERSISTENT);
+    MHD_create_response_from_buffer (strlen (page), (void *) page,
+                                     MHD_RESPMEM_PERSISTENT);
   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
   MHD_destroy_response (response);
 
@@ -46,7 +46,8 @@ main (void)
 {
   struct MHD_Daemon *daemon;
 
-  daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD, 
PORT, NULL, NULL,
+  daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD,
+                             PORT, NULL, NULL,
                              &answer_to_connection, NULL, MHD_OPTION_END);
   if (NULL == daemon)
     return 1;
diff --git a/doc/examples/largepost.c b/doc/examples/largepost.c
index 8ef7c9fe..8618209f 100644
--- a/doc/examples/largepost.c
+++ b/doc/examples/largepost.c
@@ -15,11 +15,11 @@
 
 #ifdef _MSC_VER
 #ifndef strcasecmp
-#define strcasecmp(a,b) _stricmp((a),(b))
+#define strcasecmp(a,b) _stricmp ((a),(b))
 #endif /* !strcasecmp */
 #endif /* _MSC_VER */
 
-#if defined(_MSC_VER) && _MSC_VER+0 <= 1800
+#if defined(_MSC_VER) && _MSC_VER + 0 <= 1800
 /* Substitution is OK while return value is not used */
 #define snprintf _snprintf
 #endif
@@ -29,10 +29,10 @@
 #define MAXCLIENTS      2
 
 enum ConnectionType
-  {
-    GET = 0,
-    POST = 1
-  };
+{
+  GET = 0,
+  POST = 1
+};
 
 static unsigned int nr_of_uploading_clients = 0;
 
@@ -66,7 +66,8 @@ struct connection_info_struct
 };
 
 
-const char *askpage = "<html><body>\n\
+const char *askpage =
+  "<html><body>\n\
                        Upload a file, please!<br>\n\
                        There are %u clients uploading at the moment.<br>\n\
                        <form action=\"/filepost\" method=\"post\" 
enctype=\"multipart/form-data\">\n\
@@ -85,23 +86,23 @@ const char *fileexistspage =
   "<html><body>This file already exists.</body></html>";
 const char *fileioerror =
   "<html><body>IO error writing to disk.</body></html>";
-const char* const postprocerror =
+const char*const postprocerror =
   "<html><head><title>Error</title></head><body>Error processing POST 
data</body></html>";
 
 
-static int
+static enum MHD_Result
 send_page (struct MHD_Connection *connection,
            const char *page,
            int status_code)
 {
-  int ret;
+  enum MHD_Result ret;
   struct MHD_Response *response;
 
   response =
     MHD_create_response_from_buffer (strlen (page),
                                      (void *) page,
-                                    MHD_RESPMEM_MUST_COPY);
-  if (!response)
+                                     MHD_RESPMEM_MUST_COPY);
+  if (! response)
     return MHD_NO;
   MHD_add_response_header (response,
                            MHD_HTTP_HEADER_CONTENT_TYPE,
@@ -115,7 +116,7 @@ send_page (struct MHD_Connection *connection,
 }
 
 
-static int
+static enum MHD_Result
 iterate_post (void *coninfo_cls,
               enum MHD_ValueKind kind,
               const char *key,
@@ -128,50 +129,50 @@ iterate_post (void *coninfo_cls,
 {
   struct connection_info_struct *con_info = coninfo_cls;
   FILE *fp;
-  (void)kind;               /* Unused. Silent compiler warning. */
-  (void)content_type;       /* Unused. Silent compiler warning. */
-  (void)transfer_encoding;  /* Unused. Silent compiler warning. */
-  (void)off;                /* Unused. Silent compiler warning. */
+  (void) kind;               /* Unused. Silent compiler warning. */
+  (void) content_type;       /* Unused. Silent compiler warning. */
+  (void) transfer_encoding;  /* Unused. Silent compiler warning. */
+  (void) off;                /* Unused. Silent compiler warning. */
 
   if (0 != strcmp (key, "file"))
+  {
+    con_info->answerstring = servererrorpage;
+    con_info->answercode = MHD_HTTP_BAD_REQUEST;
+    return MHD_YES;
+  }
+
+  if (! con_info->fp)
+  {
+    if (0 != con_info->answercode)   /* something went wrong */
+      return MHD_YES;
+    if (NULL != (fp = fopen (filename, "rb")))
     {
-      con_info->answerstring = servererrorpage;
-      con_info->answercode = MHD_HTTP_BAD_REQUEST;
+      fclose (fp);
+      con_info->answerstring = fileexistspage;
+      con_info->answercode = MHD_HTTP_FORBIDDEN;
       return MHD_YES;
     }
-
-  if (! con_info->fp)
+    /* NOTE: This is technically a race with the 'fopen()' above,
+       but there is no easy fix, short of moving to open(O_EXCL)
+       instead of using fopen(). For the example, we do not care. */
+    con_info->fp = fopen (filename, "ab");
+    if (! con_info->fp)
     {
-      if (0 != con_info->answercode) /* something went wrong */
-        return MHD_YES;
-      if (NULL != (fp = fopen (filename, "rb")))
-        {
-          fclose (fp);
-          con_info->answerstring = fileexistspage;
-          con_info->answercode = MHD_HTTP_FORBIDDEN;
-          return MHD_YES;
-        }
-      /* NOTE: This is technically a race with the 'fopen()' above,
-         but there is no easy fix, short of moving to open(O_EXCL)
-         instead of using fopen(). For the example, we do not care. */
-      con_info->fp = fopen (filename, "ab");
-      if (!con_info->fp)
-        {
-          con_info->answerstring = fileioerror;
-          con_info->answercode = MHD_HTTP_INTERNAL_SERVER_ERROR;
-          return MHD_YES;
-        }
+      con_info->answerstring = fileioerror;
+      con_info->answercode = MHD_HTTP_INTERNAL_SERVER_ERROR;
+      return MHD_YES;
     }
+  }
 
   if (size > 0)
+  {
+    if (! fwrite (data, sizeof (char), size, con_info->fp))
     {
-      if (! fwrite (data, sizeof (char), size, con_info->fp))
-        {
-          con_info->answerstring = fileioerror;
-          con_info->answercode = MHD_HTTP_INTERNAL_SERVER_ERROR;
-          return MHD_YES;
-        }
+      con_info->answerstring = fileioerror;
+      con_info->answercode = MHD_HTTP_INTERNAL_SERVER_ERROR;
+      return MHD_YES;
     }
+  }
 
   return MHD_YES;
 }
@@ -184,31 +185,31 @@ request_completed (void *cls,
                    enum MHD_RequestTerminationCode toe)
 {
   struct connection_info_struct *con_info = *con_cls;
-  (void)cls;         /* Unused. Silent compiler warning. */
-  (void)connection;  /* Unused. Silent compiler warning. */
-  (void)toe;         /* Unused. Silent compiler warning. */
+  (void) cls;         /* Unused. Silent compiler warning. */
+  (void) connection;  /* Unused. Silent compiler warning. */
+  (void) toe;         /* Unused. Silent compiler warning. */
 
   if (NULL == con_info)
     return;
 
   if (con_info->connectiontype == POST)
+  {
+    if (NULL != con_info->postprocessor)
     {
-      if (NULL != con_info->postprocessor)
-        {
-          MHD_destroy_post_processor (con_info->postprocessor);
-          nr_of_uploading_clients--;
-        }
-
-      if (con_info->fp)
-        fclose (con_info->fp);
+      MHD_destroy_post_processor (con_info->postprocessor);
+      nr_of_uploading_clients--;
     }
 
+    if (con_info->fp)
+      fclose (con_info->fp);
+  }
+
   free (con_info);
   *con_cls = NULL;
 }
 
 
-static int
+static enum MHD_Result
 answer_to_connection (void *cls,
                       struct MHD_Connection *connection,
                       const char *url,
@@ -218,109 +219,109 @@ answer_to_connection (void *cls,
                       size_t *upload_data_size,
                       void **con_cls)
 {
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)url;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) url;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
 
   if (NULL == *con_cls)
-    {
-      /* First call, setup data structures */
-      struct connection_info_struct *con_info;
+  {
+    /* First call, setup data structures */
+    struct connection_info_struct *con_info;
+
+    if (nr_of_uploading_clients >= MAXCLIENTS)
+      return send_page (connection,
+                        busypage,
+                        MHD_HTTP_SERVICE_UNAVAILABLE);
 
-      if (nr_of_uploading_clients >= MAXCLIENTS)
-        return send_page (connection,
-                          busypage,
-                          MHD_HTTP_SERVICE_UNAVAILABLE);
+    con_info = malloc (sizeof (struct connection_info_struct));
+    if (NULL == con_info)
+      return MHD_NO;
+    con_info->answercode = 0;   /* none yet */
+    con_info->fp = NULL;
 
-      con_info = malloc (sizeof (struct connection_info_struct));
-      if (NULL == con_info)
+    if (0 == strcasecmp (method, MHD_HTTP_METHOD_POST))
+    {
+      con_info->postprocessor =
+        MHD_create_post_processor (connection,
+                                   POSTBUFFERSIZE,
+                                   &iterate_post,
+                                   (void *) con_info);
+
+      if (NULL == con_info->postprocessor)
+      {
+        free (con_info);
         return MHD_NO;
-      con_info->answercode = 0; /* none yet */
-      con_info->fp = NULL;
+      }
 
-      if (0 == strcasecmp (method, MHD_HTTP_METHOD_POST))
-        {
-          con_info->postprocessor =
-            MHD_create_post_processor (connection,
-                                       POSTBUFFERSIZE,
-                                       &iterate_post,
-                                       (void *) con_info);
+      nr_of_uploading_clients++;
 
-          if (NULL == con_info->postprocessor)
-            {
-              free (con_info);
-              return MHD_NO;
-            }
+      con_info->connectiontype = POST;
+    }
+    else
+    {
+      con_info->connectiontype = GET;
+    }
 
-          nr_of_uploading_clients++;
+    *con_cls = (void *) con_info;
 
-          con_info->connectiontype = POST;
-        }
-      else
-        {
-          con_info->connectiontype = GET;
-        }
+    return MHD_YES;
+  }
 
-      *con_cls = (void *) con_info;
+  if (0 == strcasecmp (method, MHD_HTTP_METHOD_GET))
+  {
+    /* We just return the standard form for uploads on all GET requests */
+    char buffer[1024];
+
+    snprintf (buffer,
+              sizeof (buffer),
+              askpage,
+              nr_of_uploading_clients);
+    return send_page (connection,
+                      buffer,
+                      MHD_HTTP_OK);
+  }
 
-      return MHD_YES;
-    }
+  if (0 == strcasecmp (method, MHD_HTTP_METHOD_POST))
+  {
+    struct connection_info_struct *con_info = *con_cls;
 
-  if (0 == strcasecmp (method, MHD_HTTP_METHOD_GET))
+    if (0 != *upload_data_size)
     {
-      /* We just return the standard form for uploads on all GET requests */
-      char buffer[1024];
+      /* Upload not yet done */
+      if (0 != con_info->answercode)
+      {
+        /* we already know the answer, skip rest of upload */
+        *upload_data_size = 0;
+        return MHD_YES;
+      }
+      if (MHD_YES !=
+          MHD_post_process (con_info->postprocessor,
+                            upload_data,
+                            *upload_data_size))
+      {
+        con_info->answerstring = postprocerror;
+        con_info->answercode = MHD_HTTP_INTERNAL_SERVER_ERROR;
+      }
+      *upload_data_size = 0;
 
-      snprintf (buffer,
-                sizeof (buffer),
-                askpage,
-                nr_of_uploading_clients);
-      return send_page (connection,
-                        buffer,
-                        MHD_HTTP_OK);
+      return MHD_YES;
     }
-
-  if (0 == strcasecmp (method, MHD_HTTP_METHOD_POST))
+    /* Upload finished */
+    if (NULL != con_info->fp)
     {
-      struct connection_info_struct *con_info = *con_cls;
-
-      if (0 != *upload_data_size)
-        {
-          /* Upload not yet done */
-          if (0 != con_info->answercode)
-            {
-              /* we already know the answer, skip rest of upload */
-              *upload_data_size = 0;
-              return MHD_YES;
-            }
-          if (MHD_YES !=
-              MHD_post_process (con_info->postprocessor,
-                                upload_data,
-                                *upload_data_size))
-            {
-              con_info->answerstring = postprocerror;
-              con_info->answercode = MHD_HTTP_INTERNAL_SERVER_ERROR;
-            }
-          *upload_data_size = 0;
-
-          return MHD_YES;
-        }
-      /* Upload finished */
-      if (NULL != con_info->fp)
-        {
-          fclose (con_info->fp);
-          con_info->fp = NULL;
-        }
-      if (0 == con_info->answercode)
-        {
-          /* No errors encountered, declare success */
-          con_info->answerstring = completepage;
-          con_info->answercode = MHD_HTTP_OK;
-        }
-      return send_page (connection,
-                        con_info->answerstring,
-                        con_info->answercode);
+      fclose (con_info->fp);
+      con_info->fp = NULL;
     }
+    if (0 == con_info->answercode)
+    {
+      /* No errors encountered, declare success */
+      con_info->answerstring = completepage;
+      con_info->answercode = MHD_HTTP_OK;
+    }
+    return send_page (connection,
+                      con_info->answerstring,
+                      con_info->answercode);
+  }
 
   /* Note a GET or a POST, generate error */
   return send_page (connection,
@@ -337,14 +338,15 @@ main ()
   daemon = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD,
                              PORT, NULL, NULL,
                              &answer_to_connection, NULL,
-                             MHD_OPTION_NOTIFY_COMPLETED, &request_completed, 
NULL,
+                             MHD_OPTION_NOTIFY_COMPLETED, &request_completed,
+                             NULL,
                              MHD_OPTION_END);
   if (NULL == daemon)
-    {
-      fprintf (stderr,
-               "Failed to start daemon\n");
-      return 1;
-    }
+  {
+    fprintf (stderr,
+             "Failed to start daemon\n");
+    return 1;
+  }
   (void) getchar ();
   MHD_stop_daemon (daemon);
   return 0;
diff --git a/doc/examples/logging.c b/doc/examples/logging.c
index 239fbe7d..22ff7e62 100644
--- a/doc/examples/logging.c
+++ b/doc/examples/logging.c
@@ -14,28 +14,28 @@
 #define PORT 8888
 
 
-static int
+static enum MHD_Result
 print_out_key (void *cls, enum MHD_ValueKind kind, const char *key,
                const char *value)
 {
-  (void)cls;    /* Unused. Silent compiler warning. */
-  (void)kind;   /* Unused. Silent compiler warning. */
+  (void) cls;    /* Unused. Silent compiler warning. */
+  (void) kind;   /* Unused. Silent compiler warning. */
   printf ("%s: %s\n", key, value);
   return MHD_YES;
 }
 
 
-static int
+static enum MHD_Result
 answer_to_connection (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)
 {
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
-  (void)upload_data;       /* Unused. Silent compiler warning. */
-  (void)upload_data_size;  /* Unused. Silent compiler warning. */
-  (void)con_cls;           /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
+  (void) upload_data;       /* Unused. Silent compiler warning. */
+  (void) upload_data_size;  /* Unused. Silent compiler warning. */
+  (void) con_cls;           /* Unused. Silent compiler warning. */
   printf ("New %s request for %s using version %s\n", method, url, version);
 
   MHD_get_connection_values (connection, MHD_HEADER_KIND, print_out_key,
diff --git a/doc/examples/responseheaders.c b/doc/examples/responseheaders.c
index 0f459c2e..5c0580b6 100644
--- a/doc/examples/responseheaders.c
+++ b/doc/examples/responseheaders.c
@@ -19,7 +19,7 @@
 #define FILENAME "picture.png"
 #define MIMETYPE "image/png"
 
-static int
+static enum MHD_Result
 answer_to_connection (void *cls, struct MHD_Connection *connection,
                       const char *url, const char *method,
                       const char *version, const char *upload_data,
@@ -27,43 +27,43 @@ answer_to_connection (void *cls, struct MHD_Connection 
*connection,
 {
   struct MHD_Response *response;
   int fd;
-  int ret;
+  enum MHD_Result ret;
   struct stat sbuf;
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)url;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
-  (void)upload_data;       /* Unused. Silent compiler warning. */
-  (void)upload_data_size;  /* Unused. Silent compiler warning. */
-  (void)con_cls;           /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) url;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
+  (void) upload_data;       /* Unused. Silent compiler warning. */
+  (void) upload_data_size;  /* Unused. Silent compiler warning. */
+  (void) con_cls;           /* Unused. Silent compiler warning. */
 
   if (0 != strcmp (method, "GET"))
     return MHD_NO;
 
   if ( (-1 == (fd = open (FILENAME, O_RDONLY))) ||
        (0 != fstat (fd, &sbuf)) )
-    {
-      const char *errorstr =
-        "<html><body>An internal server error has occured!\
+  {
+    const char *errorstr =
+      "<html><body>An internal server error has occured!\
                               </body></html>";
-      /* error accessing file */
-      if (fd != -1)
-       (void) close (fd);
-      response =
-       MHD_create_response_from_buffer (strlen (errorstr),
-                                        (void *) errorstr,
-                                        MHD_RESPMEM_PERSISTENT);
-      if (NULL != response)
-        {
-          ret =
-            MHD_queue_response (connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
-                                response);
-          MHD_destroy_response (response);
+    /* error accessing file */
+    if (fd != -1)
+      (void) close (fd);
+    response =
+      MHD_create_response_from_buffer (strlen (errorstr),
+                                       (void *) errorstr,
+                                       MHD_RESPMEM_PERSISTENT);
+    if (NULL != response)
+    {
+      ret =
+        MHD_queue_response (connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+                            response);
+      MHD_destroy_response (response);
 
-          return ret;
-        }
-      else
-        return MHD_NO;
+      return ret;
     }
+    else
+      return MHD_NO;
+  }
   response =
     MHD_create_response_from_fd_at_offset64 (sbuf.st_size, fd, 0);
   MHD_add_response_header (response, "Content-Type", MIMETYPE);
diff --git a/doc/examples/sessions.c b/doc/examples/sessions.c
index b5b25440..adabc610 100644
--- a/doc/examples/sessions.c
+++ b/doc/examples/sessions.c
@@ -11,7 +11,7 @@
 #include <time.h>
 #include <microhttpd.h>
 
-#if defined _WIN32 && !defined(__MINGW64_VERSION_MAJOR)
+#if defined _WIN32 && ! defined(__MINGW64_VERSION_MAJOR)
 static int
 asprintf (char **resultp, const char *format, ...)
 {
@@ -32,7 +32,7 @@ asprintf (char **resultp, const char *format, ...)
     if (result != NULL)
     {
       int len2 = _vscprintf ((char *) format, argptr);
-      if (len2 != len - 1 || len2 <= 0)
+      if ((len2 != len - 1) || (len2 <= 0))
       {
         free (result);
         result = NULL;
@@ -49,37 +49,45 @@ asprintf (char **resultp, const char *format, ...)
   va_end (argptr);
   return len;
 }
+
+
 #endif
 
 /**
  * Invalid method page.
  */
-#define METHOD_ERROR "<html><head><title>Illegal 
request</title></head><body>Go away.</body></html>"
+#define METHOD_ERROR \
+  "<html><head><title>Illegal request</title></head><body>Go 
away.</body></html>"
 
 /**
  * Invalid URL page.
  */
-#define NOT_FOUND_ERROR "<html><head><title>Not found</title></head><body>Go 
away.</body></html>"
+#define NOT_FOUND_ERROR \
+  "<html><head><title>Not found</title></head><body>Go away.</body></html>"
 
 /**
  * Front page. (/)
  */
-#define MAIN_PAGE "<html><head><title>Welcome</title></head><body><form 
action=\"/2\" method=\"post\">What is your name? <input type=\"text\" 
name=\"v1\" value=\"%s\" /><input type=\"submit\" value=\"Next\" 
/></body></html>"
+#define MAIN_PAGE \
+  "<html><head><title>Welcome</title></head><body><form action=\"/2\" 
method=\"post\">What is your name? <input type=\"text\" name=\"v1\" 
value=\"%s\" /><input type=\"submit\" value=\"Next\" /></body></html>"
 
 /**
  * Second page. (/2)
  */
-#define SECOND_PAGE "<html><head><title>Tell me more</title></head><body><a 
href=\"/\">previous</a> <form action=\"/S\" method=\"post\">%s, what is your 
job? <input type=\"text\" name=\"v2\" value=\"%s\" /><input type=\"submit\" 
value=\"Next\" /></body></html>"
+#define SECOND_PAGE \
+  "<html><head><title>Tell me more</title></head><body><a 
href=\"/\">previous</a> <form action=\"/S\" method=\"post\">%s, what is your 
job? <input type=\"text\" name=\"v2\" value=\"%s\" /><input type=\"submit\" 
value=\"Next\" /></body></html>"
 
 /**
  * Second page (/S)
  */
-#define SUBMIT_PAGE "<html><head><title>Ready to 
submit?</title></head><body><form action=\"/F\" method=\"post\"><a 
href=\"/2\">previous </a> <input type=\"hidden\" name=\"DONE\" value=\"yes\" 
/><input type=\"submit\" value=\"Submit\" /></body></html>"
+#define SUBMIT_PAGE \
+  "<html><head><title>Ready to submit?</title></head><body><form action=\"/F\" 
method=\"post\"><a href=\"/2\">previous </a> <input type=\"hidden\" 
name=\"DONE\" value=\"yes\" /><input type=\"submit\" value=\"Submit\" 
/></body></html>"
 
 /**
  * Last page.
  */
-#define LAST_PAGE "<html><head><title>Thank you</title></head><body>Thank 
you.</body></html>"
+#define LAST_PAGE \
+  "<html><head><title>Thank you</title></head><body>Thank you.</body></html>"
 
 /**
  * Name of our cookie.
@@ -159,8 +167,6 @@ struct Request
 static struct Session *sessions;
 
 
-
-
 /**
  * Return the session handle for this connection, or
  * create one if this is a new user.
@@ -172,40 +178,40 @@ get_session (struct MHD_Connection *connection)
   const char *cookie;
 
   cookie = MHD_lookup_connection_value (connection,
-                                       MHD_COOKIE_KIND,
-                                       COOKIE_NAME);
+                                        MHD_COOKIE_KIND,
+                                        COOKIE_NAME);
   if (cookie != NULL)
+  {
+    /* find existing session */
+    ret = sessions;
+    while (NULL != ret)
     {
-      /* find existing session */
-      ret = sessions;
-      while (NULL != ret)
-       {
-         if (0 == strcmp (cookie, ret->sid))
-           break;
-         ret = ret->next;
-       }
-      if (NULL != ret)
-       {
-         ret->rc++;
-         return ret;
-       }
+      if (0 == strcmp (cookie, ret->sid))
+        break;
+      ret = ret->next;
     }
+    if (NULL != ret)
+    {
+      ret->rc++;
+      return ret;
+    }
+  }
   /* create fresh session */
   ret = calloc (1, sizeof (struct Session));
   if (NULL == ret)
-    {
-      fprintf (stderr, "calloc error: %s\n", strerror (errno));
-      return NULL;
-    }
+  {
+    fprintf (stderr, "calloc error: %s\n", strerror (errno));
+    return NULL;
+  }
   /* not a super-secure way to generate a random session ID,
      but should do for a simple example... */
   snprintf (ret->sid,
-           sizeof (ret->sid),
-           "%X%X%X%X",
-           (unsigned int) rand (),
-           (unsigned int) rand (),
-           (unsigned int) rand (),
-           (unsigned int) rand ());
+            sizeof (ret->sid),
+            "%X%X%X%X",
+            (unsigned int) rand (),
+            (unsigned int) rand (),
+            (unsigned int) rand (),
+            (unsigned int) rand ());
   ret->rc++;
   ret->start = time (NULL);
   ret->next = sessions;
@@ -221,12 +227,12 @@ get_session (struct MHD_Connection *connection)
  * @param mime mime type to use
  * @param session session information
  * @param connection connection to process
- * @param MHD_YES on success, MHD_NO on failure
+ * @param #MHD_YES on success, #MHD_NO on failure
  */
-typedef int (*PageHandler)(const void *cls,
-                          const char *mime,
-                          struct Session *session,
-                          struct MHD_Connection *connection);
+typedef enum MHD_Result (*PageHandler)(const void *cls,
+                                       const char *mime,
+                                       struct Session *session,
+                                       struct MHD_Connection *connection);
 
 
 /**
@@ -264,22 +270,22 @@ struct Page
  */
 static void
 add_session_cookie (struct Session *session,
-                   struct MHD_Response *response)
+                    struct MHD_Response *response)
 {
   char cstr[256];
   snprintf (cstr,
-           sizeof (cstr),
-           "%s=%s",
-           COOKIE_NAME,
-           session->sid);
+            sizeof (cstr),
+            "%s=%s",
+            COOKIE_NAME,
+            session->sid);
   if (MHD_NO ==
       MHD_add_response_header (response,
-                              MHD_HTTP_HEADER_SET_COOKIE,
-                              cstr))
-    {
-      fprintf (stderr,
-              "Failed to set session cookie header!\n");
-    }
+                               MHD_HTTP_HEADER_SET_COOKIE,
+                               cstr))
+  {
+    fprintf (stderr,
+             "Failed to set session cookie header!\n");
+  }
 }
 
 
@@ -292,27 +298,27 @@ add_session_cookie (struct Session *session,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 serve_simple_form (const void *cls,
-                  const char *mime,
-                  struct Session *session,
-                  struct MHD_Connection *connection)
+                   const char *mime,
+                   struct Session *session,
+                   struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   const char *form = cls;
   struct MHD_Response *response;
 
   /* return static form */
   response = MHD_create_response_from_buffer (strlen (form),
-                                             (void *) form,
-                                             MHD_RESPMEM_PERSISTENT);
+                                              (void *) form,
+                                              MHD_RESPMEM_PERSISTENT);
   add_session_cookie (session, response);
   MHD_add_response_header (response,
-                          MHD_HTTP_HEADER_CONTENT_ENCODING,
-                          mime);
+                           MHD_HTTP_HEADER_CONTENT_ENCODING,
+                           mime);
   ret = MHD_queue_response (connection,
-                           MHD_HTTP_OK,
-                           response);
+                            MHD_HTTP_OK,
+                            response);
   MHD_destroy_response (response);
   return ret;
 }
@@ -326,35 +332,35 @@ serve_simple_form (const void *cls,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 fill_v1_form (const void *cls,
-             const char *mime,
-             struct Session *session,
-             struct MHD_Connection *connection)
+              const char *mime,
+              struct Session *session,
+              struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   const char *form = cls;
   char *reply;
   struct MHD_Response *response;
 
   if (-1 == asprintf (&reply,
-                     form,
-                     session->value_1))
-    {
-      /* oops */
-      return MHD_NO;
-    }
+                      form,
+                      session->value_1))
+  {
+    /* oops */
+    return MHD_NO;
+  }
   /* return static form */
   response = MHD_create_response_from_buffer (strlen (reply),
-                                             (void *) reply,
-                                             MHD_RESPMEM_MUST_FREE);
+                                              (void *) reply,
+                                              MHD_RESPMEM_MUST_FREE);
   add_session_cookie (session, response);
   MHD_add_response_header (response,
-                          MHD_HTTP_HEADER_CONTENT_ENCODING,
-                          mime);
+                           MHD_HTTP_HEADER_CONTENT_ENCODING,
+                           mime);
   ret = MHD_queue_response (connection,
-                           MHD_HTTP_OK,
-                           response);
+                            MHD_HTTP_OK,
+                            response);
   MHD_destroy_response (response);
   return ret;
 }
@@ -368,36 +374,36 @@ fill_v1_form (const void *cls,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 fill_v1_v2_form (const void *cls,
-                const char *mime,
-                struct Session *session,
-                struct MHD_Connection *connection)
+                 const char *mime,
+                 struct Session *session,
+                 struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   const char *form = cls;
   char *reply;
   struct MHD_Response *response;
 
   if (-1 == asprintf (&reply,
-                     form,
-                     session->value_1,
-                     session->value_2))
-    {
-      /* oops */
-      return MHD_NO;
-    }
+                      form,
+                      session->value_1,
+                      session->value_2))
+  {
+    /* oops */
+    return MHD_NO;
+  }
   /* return static form */
   response = MHD_create_response_from_buffer (strlen (reply),
-                                             (void *) reply,
-                                             MHD_RESPMEM_MUST_FREE);
+                                              (void *) reply,
+                                              MHD_RESPMEM_MUST_FREE);
   add_session_cookie (session, response);
   MHD_add_response_header (response,
-                          MHD_HTTP_HEADER_CONTENT_ENCODING,
-                          mime);
+                           MHD_HTTP_HEADER_CONTENT_ENCODING,
+                           mime);
   ret = MHD_queue_response (connection,
-                           MHD_HTTP_OK,
-                           response);
+                            MHD_HTTP_OK,
+                            response);
   MHD_destroy_response (response);
   return ret;
 }
@@ -411,27 +417,27 @@ fill_v1_v2_form (const void *cls,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 not_found_page (const void *cls,
-               const char *mime,
-               struct Session *session,
-               struct MHD_Connection *connection)
+                const char *mime,
+                struct Session *session,
+                struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   struct MHD_Response *response;
-  (void)cls;     /* Unused. Silent compiler warning. */
-  (void)session; /* Unused. Silent compiler warning. */
+  (void) cls;     /* Unused. Silent compiler warning. */
+  (void) session; /* Unused. Silent compiler warning. */
 
   /* unsupported HTTP method */
   response = MHD_create_response_from_buffer (strlen (NOT_FOUND_ERROR),
-                                             (void *) NOT_FOUND_ERROR,
-                                             MHD_RESPMEM_PERSISTENT);
+                                              (void *) NOT_FOUND_ERROR,
+                                              MHD_RESPMEM_PERSISTENT);
   ret = MHD_queue_response (connection,
-                           MHD_HTTP_NOT_FOUND,
-                           response);
+                            MHD_HTTP_NOT_FOUND,
+                            response);
   MHD_add_response_header (response,
-                          MHD_HTTP_HEADER_CONTENT_ENCODING,
-                          mime);
+                           MHD_HTTP_HEADER_CONTENT_ENCODING,
+                           mime);
   MHD_destroy_response (response);
   return ret;
 }
@@ -440,15 +446,13 @@ not_found_page (const void *cls,
 /**
  * List of all pages served by this HTTP server.
  */
-static struct Page pages[] =
-  {
-    { "/", "text/html",  &fill_v1_form, MAIN_PAGE },
-    { "/2", "text/html", &fill_v1_v2_form, SECOND_PAGE },
-    { "/S", "text/html", &serve_simple_form, SUBMIT_PAGE },
-    { "/F", "text/html", &serve_simple_form, LAST_PAGE },
-    { NULL, NULL, &not_found_page, NULL } /* 404 */
-  };
-
+static struct Page pages[] = {
+  { "/", "text/html",  &fill_v1_form, MAIN_PAGE },
+  { "/2", "text/html", &fill_v1_v2_form, SECOND_PAGE },
+  { "/S", "text/html", &serve_simple_form, SUBMIT_PAGE },
+  { "/F", "text/html", &serve_simple_form, LAST_PAGE },
+  { NULL, NULL, &not_found_page, NULL }   /* 404 */
+};
 
 
 /**
@@ -470,53 +474,53 @@ static struct Page pages[] =
  * @return MHD_YES to continue iterating,
  *         MHD_NO to abort the iteration
  */
-static int
+static enum MHD_Result
 post_iterator (void *cls,
-              enum MHD_ValueKind kind,
-              const char *key,
-              const char *filename,
-              const char *content_type,
-              const char *transfer_encoding,
-              const char *data, uint64_t off, size_t size)
+               enum MHD_ValueKind kind,
+               const char *key,
+               const char *filename,
+               const char *content_type,
+               const char *transfer_encoding,
+               const char *data, uint64_t off, size_t size)
 {
   struct Request *request = cls;
   struct Session *session = request->session;
-  (void)kind;               /* Unused. Silent compiler warning. */
-  (void)filename;           /* Unused. Silent compiler warning. */
-  (void)content_type;       /* Unused. Silent compiler warning. */
-  (void)transfer_encoding;  /* Unused. Silent compiler warning. */
+  (void) kind;               /* Unused. Silent compiler warning. */
+  (void) filename;           /* Unused. Silent compiler warning. */
+  (void) content_type;       /* Unused. Silent compiler warning. */
+  (void) transfer_encoding;  /* Unused. Silent compiler warning. */
 
   if (0 == strcmp ("DONE", key))
-    {
-      fprintf (stdout,
-              "Session `%s' submitted `%s', `%s'\n",
-              session->sid,
-              session->value_1,
-              session->value_2);
-      return MHD_YES;
-    }
+  {
+    fprintf (stdout,
+             "Session `%s' submitted `%s', `%s'\n",
+             session->sid,
+             session->value_1,
+             session->value_2);
+    return MHD_YES;
+  }
   if (0 == strcmp ("v1", key))
-    {
-      if (size + off > sizeof(session->value_1))
-       size = sizeof (session->value_1) - off;
-      memcpy (&session->value_1[off],
-             data,
-             size);
-      if (size + off < sizeof (session->value_1))
-       session->value_1[size+off] = '\0';
-      return MHD_YES;
-    }
+  {
+    if (size + off > sizeof(session->value_1))
+      size = sizeof (session->value_1) - off;
+    memcpy (&session->value_1[off],
+            data,
+            size);
+    if (size + off < sizeof (session->value_1))
+      session->value_1[size + off] = '\0';
+    return MHD_YES;
+  }
   if (0 == strcmp ("v2", key))
-    {
-      if (size + off > sizeof(session->value_2))
-       size = sizeof (session->value_2) - off;
-      memcpy (&session->value_2[off],
-             data,
-             size);
-      if (size + off < sizeof (session->value_2))
-       session->value_2[size+off] = '\0';
-      return MHD_YES;
-    }
+  {
+    if (size + off > sizeof(session->value_2))
+      size = sizeof (session->value_2) - off;
+    memcpy (&session->value_2[off],
+            data,
+            size);
+    if (size + off < sizeof (session->value_2))
+      session->value_2[size + off] = '\0';
+    return MHD_YES;
+  }
   fprintf (stderr, "Unsupported form value `%s'\n", key);
   return MHD_YES;
 }
@@ -556,101 +560,101 @@ post_iterator (void *cls,
  *         MHS_NO if the socket must be closed due to a serios
  *         error while handling the request
  */
-static int
+static enum MHD_Result
 create_response (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 **ptr)
+                 struct MHD_Connection *connection,
+                 const char *url,
+                 const char *method,
+                 const char *version,
+                 const char *upload_data,
+                 size_t *upload_data_size,
+                 void **ptr)
 {
   struct MHD_Response *response;
   struct Request *request;
   struct Session *session;
-  int ret;
+  enum MHD_Result ret;
   unsigned int i;
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
 
   request = *ptr;
   if (NULL == request)
+  {
+    request = calloc (1, sizeof (struct Request));
+    if (NULL == request)
     {
-      request = calloc (1, sizeof (struct Request));
-      if (NULL == request)
-       {
-         fprintf (stderr, "calloc error: %s\n", strerror (errno));
-         return MHD_NO;
-       }
-      *ptr = request;
-      if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
-       {
-         request->pp = MHD_create_post_processor (connection, 1024,
-                                                  &post_iterator, request);
-         if (NULL == request->pp)
-           {
-             fprintf (stderr, "Failed to setup post processor for `%s'\n",
-                      url);
-             return MHD_NO; /* internal error */
-           }
-       }
-      return MHD_YES;
+      fprintf (stderr, "calloc error: %s\n", strerror (errno));
+      return MHD_NO;
+    }
+    *ptr = request;
+    if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
+    {
+      request->pp = MHD_create_post_processor (connection, 1024,
+                                               &post_iterator, request);
+      if (NULL == request->pp)
+      {
+        fprintf (stderr, "Failed to setup post processor for `%s'\n",
+                 url);
+        return MHD_NO; /* internal error */
+      }
     }
+    return MHD_YES;
+  }
   if (NULL == request->session)
+  {
+    request->session = get_session (connection);
+    if (NULL == request->session)
     {
-      request->session = get_session (connection);
-      if (NULL == request->session)
-       {
-         fprintf (stderr, "Failed to setup session for `%s'\n",
-                  url);
-         return MHD_NO; /* internal error */
-       }
+      fprintf (stderr, "Failed to setup session for `%s'\n",
+               url);
+      return MHD_NO; /* internal error */
     }
+  }
   session = request->session;
   session->start = time (NULL);
   if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
+  {
+    /* evaluate POST data */
+    MHD_post_process (request->pp,
+                      upload_data,
+                      *upload_data_size);
+    if (0 != *upload_data_size)
     {
-      /* evaluate POST data */
-      MHD_post_process (request->pp,
-                       upload_data,
-                       *upload_data_size);
-      if (0 != *upload_data_size)
-       {
-         *upload_data_size = 0;
-         return MHD_YES;
-       }
-      /* done with POST data, serve response */
-      MHD_destroy_post_processor (request->pp);
-      request->pp = NULL;
-      method = MHD_HTTP_METHOD_GET; /* fake 'GET' */
-      if (NULL != request->post_url)
-       url = request->post_url;
+      *upload_data_size = 0;
+      return MHD_YES;
     }
+    /* done with POST data, serve response */
+    MHD_destroy_post_processor (request->pp);
+    request->pp = NULL;
+    method = MHD_HTTP_METHOD_GET;   /* fake 'GET' */
+    if (NULL != request->post_url)
+      url = request->post_url;
+  }
 
   if ( (0 == strcmp (method, MHD_HTTP_METHOD_GET)) ||
        (0 == strcmp (method, MHD_HTTP_METHOD_HEAD)) )
-    {
-      /* find out which page to serve */
-      i=0;
-      while ( (pages[i].url != NULL) &&
-             (0 != strcmp (pages[i].url, url)) )
-       i++;
-      ret = pages[i].handler (pages[i].handler_cls,
-                             pages[i].mime,
-                             session, connection);
-      if (ret != MHD_YES)
-       fprintf (stderr, "Failed to create page for `%s'\n",
-                url);
-      return ret;
-    }
+  {
+    /* find out which page to serve */
+    i = 0;
+    while ( (pages[i].url != NULL) &&
+            (0 != strcmp (pages[i].url, url)) )
+      i++;
+    ret = pages[i].handler (pages[i].handler_cls,
+                            pages[i].mime,
+                            session, connection);
+    if (ret != MHD_YES)
+      fprintf (stderr, "Failed to create page for `%s'\n",
+               url);
+    return ret;
+  }
   /* unsupported HTTP method */
   response = MHD_create_response_from_buffer (strlen (METHOD_ERROR),
-                                             (void *) METHOD_ERROR,
-                                             MHD_RESPMEM_PERSISTENT);
+                                              (void *) METHOD_ERROR,
+                                              MHD_RESPMEM_PERSISTENT);
   ret = MHD_queue_response (connection,
-                           MHD_HTTP_NOT_ACCEPTABLE,
-                           response);
+                            MHD_HTTP_NOT_ACCEPTABLE,
+                            response);
   MHD_destroy_response (response);
   return ret;
 }
@@ -667,14 +671,14 @@ create_response (void *cls,
  */
 static void
 request_completed_callback (void *cls,
-                           struct MHD_Connection *connection,
-                           void **con_cls,
-                           enum MHD_RequestTerminationCode toe)
+                            struct MHD_Connection *connection,
+                            void **con_cls,
+                            enum MHD_RequestTerminationCode toe)
 {
   struct Request *request = *con_cls;
-  (void)cls;         /* Unused. Silent compiler warning. */
-  (void)connection;  /* Unused. Silent compiler warning. */
-  (void)toe;         /* Unused. Silent compiler warning. */
+  (void) cls;         /* Unused. Silent compiler warning. */
+  (void) connection;  /* Unused. Silent compiler warning. */
+  (void) toe;         /* Unused. Silent compiler warning. */
 
   if (NULL == request)
     return;
@@ -702,21 +706,21 @@ expire_sessions ()
   prev = NULL;
   pos = sessions;
   while (NULL != pos)
+  {
+    next = pos->next;
+    if (now - pos->start > 60 * 60)
     {
-      next = pos->next;
-      if (now - pos->start > 60 * 60)
-       {
-         /* expire sessions after 1h */
-         if (NULL == prev)
-           sessions = pos->next;
-         else
-           prev->next = next;
-         free (pos);
-       }
+      /* expire sessions after 1h */
+      if (NULL == prev)
+        sessions = pos->next;
       else
-        prev = pos;
-      pos = next;
+        prev->next = next;
+      free (pos);
     }
+    else
+      prev = pos;
+    pos = next;
+  }
 }
 
 
@@ -737,48 +741,49 @@ main (int argc, char *const *argv)
   MHD_UNSIGNED_LONG_LONG mhd_timeout;
 
   if (argc != 2)
-    {
-      printf ("%s PORT\n", argv[0]);
-      return 1;
-    }
+  {
+    printf ("%s PORT\n", argv[0]);
+    return 1;
+  }
   /* initialize PRNG */
   srand ((unsigned int) time (NULL));
   d = MHD_start_daemon (MHD_USE_ERROR_LOG,
                         atoi (argv[1]),
                         NULL, NULL,
-                       &create_response, NULL,
-                       MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 15,
-                       MHD_OPTION_NOTIFY_COMPLETED, 
&request_completed_callback, NULL,
-                       MHD_OPTION_END);
+                        &create_response, NULL,
+                        MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 15,
+                        MHD_OPTION_NOTIFY_COMPLETED,
+                        &request_completed_callback, NULL,
+                        MHD_OPTION_END);
   if (NULL == d)
     return 1;
   while (1)
+  {
+    expire_sessions ();
+    max = 0;
+    FD_ZERO (&rs);
+    FD_ZERO (&ws);
+    FD_ZERO (&es);
+    if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max))
+      break; /* fatal internal error */
+    if (MHD_get_timeout (d, &mhd_timeout) == MHD_YES)
     {
-      expire_sessions ();
-      max = 0;
-      FD_ZERO (&rs);
-      FD_ZERO (&ws);
-      FD_ZERO (&es);
-      if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max))
-       break; /* fatal internal error */
-      if (MHD_get_timeout (d, &mhd_timeout) == MHD_YES)
-       {
-         tv.tv_sec = mhd_timeout / 1000;
-         tv.tv_usec = (mhd_timeout - (tv.tv_sec * 1000)) * 1000;
-         tvp = &tv;
-       }
-      else
-       tvp = NULL;
-      if (-1 == select (max + 1, &rs, &ws, &es, tvp))
-       {
-         if (EINTR != errno)
-           fprintf (stderr,
-                    "Aborting due to error during select: %s\n",
-                    strerror (errno));
-         break;
-       }
-      MHD_run (d);
+      tv.tv_sec = mhd_timeout / 1000;
+      tv.tv_usec = (mhd_timeout - (tv.tv_sec * 1000)) * 1000;
+      tvp = &tv;
     }
+    else
+      tvp = NULL;
+    if (-1 == select (max + 1, &rs, &ws, &es, tvp))
+    {
+      if (EINTR != errno)
+        fprintf (stderr,
+                 "Aborting due to error during select: %s\n",
+                 strerror (errno));
+      break;
+    }
+    MHD_run (d);
+  }
   MHD_stop_daemon (d);
   return 0;
 }
diff --git a/doc/examples/simplepost.c b/doc/examples/simplepost.c
index a3bba94a..1e52e5dd 100644
--- a/doc/examples/simplepost.c
+++ b/doc/examples/simplepost.c
@@ -13,7 +13,7 @@
 #include <string.h>
 #include <stdlib.h>
 
-#if defined(_MSC_VER) && _MSC_VER+0 <= 1800
+#if defined(_MSC_VER) && _MSC_VER + 0 <= 1800
 /* Substitution is OK while return value is not used */
 #define snprintf _snprintf
 #endif
@@ -33,7 +33,8 @@ struct connection_info_struct
   struct MHD_PostProcessor *postprocessor;
 };
 
-const char *askpage = "<html><body>\
+const char *askpage =
+  "<html><body>\
                        What's your name, Sir?<br>\
                        <form action=\"/namepost\" method=\"post\">\
                        <input name=\"name\" type=\"text\">\
@@ -47,17 +48,17 @@ const char *errorpage =
   "<html><body>This doesn't seem to be right.</body></html>";
 
 
-static int
+static enum MHD_Result
 send_page (struct MHD_Connection *connection, const char *page)
 {
-  int ret;
+  enum MHD_Result ret;
   struct MHD_Response *response;
 
 
   response =
     MHD_create_response_from_buffer (strlen (page), (void *) page,
-                                    MHD_RESPMEM_PERSISTENT);
-  if (!response)
+                                     MHD_RESPMEM_PERSISTENT);
+  if (! response)
     return MHD_NO;
 
   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
@@ -67,135 +68,138 @@ send_page (struct MHD_Connection *connection, const char 
*page)
 }
 
 
-static int
+static enum MHD_Result
 iterate_post (void *coninfo_cls, enum MHD_ValueKind kind, const char *key,
               const char *filename, const char *content_type,
               const char *transfer_encoding, const char *data, uint64_t off,
               size_t size)
 {
   struct connection_info_struct *con_info = coninfo_cls;
-  (void)kind;               /* Unused. Silent compiler warning. */
-  (void)filename;           /* Unused. Silent compiler warning. */
-  (void)content_type;       /* Unused. Silent compiler warning. */
-  (void)transfer_encoding;  /* Unused. Silent compiler warning. */
-  (void)off;                /* Unused. Silent compiler warning. */
+  (void) kind;               /* Unused. Silent compiler warning. */
+  (void) filename;           /* Unused. Silent compiler warning. */
+  (void) content_type;       /* Unused. Silent compiler warning. */
+  (void) transfer_encoding;  /* Unused. Silent compiler warning. */
+  (void) off;                /* Unused. Silent compiler warning. */
 
   if (0 == strcmp (key, "name"))
+  {
+    if ((size > 0) && (size <= MAXNAMESIZE))
     {
-      if ((size > 0) && (size <= MAXNAMESIZE))
-        {
-          char *answerstring;
-          answerstring = malloc (MAXANSWERSIZE);
-          if (!answerstring)
-            return MHD_NO;
-
-          snprintf (answerstring, MAXANSWERSIZE, greetingpage, data);
-          con_info->answerstring = answerstring;
-        }
-      else
-        con_info->answerstring = NULL;
+      char *answerstring;
+      answerstring = malloc (MAXANSWERSIZE);
+      if (! answerstring)
+        return MHD_NO;
 
-      return MHD_NO;
+      snprintf (answerstring, MAXANSWERSIZE, greetingpage, data);
+      con_info->answerstring = answerstring;
     }
+    else
+      con_info->answerstring = NULL;
+
+    return MHD_NO;
+  }
 
   return MHD_YES;
 }
 
+
 static void
 request_completed (void *cls, struct MHD_Connection *connection,
                    void **con_cls, enum MHD_RequestTerminationCode toe)
 {
   struct connection_info_struct *con_info = *con_cls;
-  (void)cls;         /* Unused. Silent compiler warning. */
-  (void)connection;  /* Unused. Silent compiler warning. */
-  (void)toe;         /* Unused. Silent compiler warning. */
+  (void) cls;         /* Unused. Silent compiler warning. */
+  (void) connection;  /* Unused. Silent compiler warning. */
+  (void) toe;         /* Unused. Silent compiler warning. */
 
   if (NULL == con_info)
     return;
 
   if (con_info->connectiontype == POST)
-    {
-      MHD_destroy_post_processor (con_info->postprocessor);
-      if (con_info->answerstring)
-        free (con_info->answerstring);
-    }
+  {
+    MHD_destroy_post_processor (con_info->postprocessor);
+    if (con_info->answerstring)
+      free (con_info->answerstring);
+  }
 
   free (con_info);
   *con_cls = NULL;
 }
 
 
-static int
+static enum MHD_Result
 answer_to_connection (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)
 {
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)url;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) url;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
 
   if (NULL == *con_cls)
-    {
-      struct connection_info_struct *con_info;
+  {
+    struct connection_info_struct *con_info;
 
-      con_info = malloc (sizeof (struct connection_info_struct));
-      if (NULL == con_info)
-        return MHD_NO;
-      con_info->answerstring = NULL;
+    con_info = malloc (sizeof (struct connection_info_struct));
+    if (NULL == con_info)
+      return MHD_NO;
+    con_info->answerstring = NULL;
 
-      if (0 == strcmp (method, "POST"))
-        {
-          con_info->postprocessor =
-            MHD_create_post_processor (connection, POSTBUFFERSIZE,
-                                       iterate_post, (void *) con_info);
+    if (0 == strcmp (method, "POST"))
+    {
+      con_info->postprocessor =
+        MHD_create_post_processor (connection, POSTBUFFERSIZE,
+                                   iterate_post, (void *) con_info);
 
-          if (NULL == con_info->postprocessor)
-            {
-              free (con_info);
-              return MHD_NO;
-            }
+      if (NULL == con_info->postprocessor)
+      {
+        free (con_info);
+        return MHD_NO;
+      }
 
-          con_info->connectiontype = POST;
-        }
-      else
-        con_info->connectiontype = GET;
+      con_info->connectiontype = POST;
+    }
+    else
+      con_info->connectiontype = GET;
 
-      *con_cls = (void *) con_info;
+    *con_cls = (void *) con_info;
 
-      return MHD_YES;
-    }
+    return MHD_YES;
+  }
 
   if (0 == strcmp (method, "GET"))
-    {
-      return send_page (connection, askpage);
-    }
+  {
+    return send_page (connection, askpage);
+  }
 
   if (0 == strcmp (method, "POST"))
+  {
+    struct connection_info_struct *con_info = *con_cls;
+
+    if (*upload_data_size != 0)
     {
-      struct connection_info_struct *con_info = *con_cls;
-
-      if (*upload_data_size != 0)
-        {
-          MHD_post_process (con_info->postprocessor, upload_data,
-                            *upload_data_size);
-          *upload_data_size = 0;
-
-          return MHD_YES;
-        }
-      else if (NULL != con_info->answerstring)
-        return send_page (connection, con_info->answerstring);
+      MHD_post_process (con_info->postprocessor, upload_data,
+                        *upload_data_size);
+      *upload_data_size = 0;
+
+      return MHD_YES;
     }
+    else if (NULL != con_info->answerstring)
+      return send_page (connection, con_info->answerstring);
+  }
 
   return send_page (connection, errorpage);
 }
 
+
 int
 main ()
 {
   struct MHD_Daemon *daemon;
 
-  daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD, 
PORT, NULL, NULL,
+  daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD,
+                             PORT, NULL, NULL,
                              &answer_to_connection, NULL,
                              MHD_OPTION_NOTIFY_COMPLETED, request_completed,
                              NULL, MHD_OPTION_END);
diff --git a/doc/examples/tlsauthentication.c b/doc/examples/tlsauthentication.c
index 43b41bf1..ca8187bc 100644
--- a/doc/examples/tlsauthentication.c
+++ b/doc/examples/tlsauthentication.c
@@ -38,20 +38,20 @@ string_to_base64 (const char *message)
     return NULL;
   tmp[0] = 0;
   for (i = 0; i < length; i += 3)
-    {
-      l = (((unsigned long) message[i]) << 16)
+  {
+    l = (((unsigned long) message[i]) << 16)
         | (((i + 1) < length) ? (((unsigned long) message[i + 1]) << 8) : 0)
         | (((i + 2) < length) ? ((unsigned long) message[i + 2]) : 0);
 
 
-      strncat (tmp, &lookup[(l >> 18) & 0x3F], 1);
-      strncat (tmp, &lookup[(l >> 12) & 0x3F], 1);
+    strncat (tmp, &lookup[(l >> 18) & 0x3F], 1);
+    strncat (tmp, &lookup[(l >> 12) & 0x3F], 1);
 
-      if (i + 1 < length)
-        strncat (tmp, &lookup[(l >> 6) & 0x3F], 1);
-      if (i + 2 < length)
-        strncat (tmp, &lookup[l & 0x3F], 1);
-    }
+    if (i + 1 < length)
+      strncat (tmp, &lookup[(l >> 6) & 0x3F], 1);
+    if (i + 2 < length)
+      strncat (tmp, &lookup[l & 0x3F], 1);
+  }
 
   if (length % 3)
     strncat (tmp, "===", 3 - length % 3);
@@ -67,16 +67,16 @@ get_file_size (const char *filename)
 
   fp = fopen (filename, "rb");
   if (fp)
-    {
-      long size;
+  {
+    long size;
 
-      if ((0 != fseek (fp, 0, SEEK_END)) || (-1 == (size = ftell (fp))))
-        size = 0;
+    if ((0 != fseek (fp, 0, SEEK_END)) || (-1 == (size = ftell (fp))))
+      size = 0;
 
-      fclose (fp);
+    fclose (fp);
 
-      return size;
-    }
+    return size;
+  }
   else
     return 0;
 }
@@ -99,58 +99,58 @@ load_file (const char *filename)
 
   buffer = malloc (size + 1);
   if (! buffer)
-    {
-      fclose (fp);
-      return NULL;
-    }
+  {
+    fclose (fp);
+    return NULL;
+  }
   buffer[size] = '\0';
 
-  if (size != (long)fread (buffer, 1, size, fp))
-    {
-      free (buffer);
-      buffer = NULL;
-    }
+  if (size != (long) fread (buffer, 1, size, fp))
+  {
+    free (buffer);
+    buffer = NULL;
+  }
 
   fclose (fp);
   return buffer;
 }
 
 
-static int
+static enum MHD_Result
 ask_for_authentication (struct MHD_Connection *connection, const char *realm)
 {
-  int ret;
+  enum MHD_Result ret;
   struct MHD_Response *response;
   char *headervalue;
   size_t slen;
   const char *strbase = "Basic realm=";
 
   response = MHD_create_response_from_buffer (0, NULL,
-                                             MHD_RESPMEM_PERSISTENT);
-  if (!response)
+                                              MHD_RESPMEM_PERSISTENT);
+  if (! response)
     return MHD_NO;
 
   slen = strlen (strbase) + strlen (realm) + 1;
   if (NULL == (headervalue = malloc (slen)))
     return MHD_NO;
   snprintf (headervalue,
-           slen,
-           "%s%s",
-           strbase,
-           realm);
+            slen,
+            "%s%s",
+            strbase,
+            realm);
   ret = MHD_add_response_header (response,
-                                "WWW-Authenticate",
-                                headervalue);
+                                 "WWW-Authenticate",
+                                 headervalue);
   free (headervalue);
   if (! ret)
-    {
-      MHD_destroy_response (response);
-      return MHD_NO;
-    }
+  {
+    MHD_destroy_response (response);
+    return MHD_NO;
+  }
 
   ret = MHD_queue_response (connection,
-                           MHD_HTTP_UNAUTHORIZED,
-                           response);
+                            MHD_HTTP_UNAUTHORIZED,
+                            response);
   MHD_destroy_response (response);
   return ret;
 }
@@ -159,7 +159,7 @@ ask_for_authentication (struct MHD_Connection *connection, 
const char *realm)
 static int
 is_authenticated (struct MHD_Connection *connection,
                   const char *username,
-                 const char *password)
+                  const char *password)
 {
   const char *headervalue;
   char *expected_b64;
@@ -180,10 +180,10 @@ is_authenticated (struct MHD_Connection *connection,
   if (NULL == (expected = malloc (slen)))
     return 0;
   snprintf (expected,
-           slen,
-           "%s:%s",
-           username,
-           password);
+            slen,
+            "%s:%s",
+            username,
+            password);
   expected_b64 = string_to_base64 (expected);
   free (expected);
   if (NULL == expected_b64)
@@ -196,17 +196,17 @@ is_authenticated (struct MHD_Connection *connection,
 }
 
 
-static int
+static enum MHD_Result
 secret_page (struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   struct MHD_Response *response;
   const char *page = "<html><body>A secret.</body></html>";
 
   response =
     MHD_create_response_from_buffer (strlen (page), (void *) page,
-                                    MHD_RESPMEM_PERSISTENT);
-  if (!response)
+                                     MHD_RESPMEM_PERSISTENT);
+  if (! response)
     return MHD_NO;
 
   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
@@ -216,27 +216,27 @@ secret_page (struct MHD_Connection *connection)
 }
 
 
-static int
+static enum MHD_Result
 answer_to_connection (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)
 {
-  (void)cls;               /* Unused. Silent compiler warning. */
-  (void)url;               /* Unused. Silent compiler warning. */
-  (void)version;           /* Unused. Silent compiler warning. */
-  (void)upload_data;       /* Unused. Silent compiler warning. */
-  (void)upload_data_size;  /* Unused. Silent compiler warning. */
+  (void) cls;               /* Unused. Silent compiler warning. */
+  (void) url;               /* Unused. Silent compiler warning. */
+  (void) version;           /* Unused. Silent compiler warning. */
+  (void) upload_data;       /* Unused. Silent compiler warning. */
+  (void) upload_data_size;  /* Unused. Silent compiler warning. */
 
   if (0 != strcmp (method, "GET"))
     return MHD_NO;
   if (NULL == *con_cls)
-    {
-      *con_cls = connection;
-      return MHD_YES;
-    }
+  {
+    *con_cls = connection;
+    return MHD_YES;
+  }
 
-  if (!is_authenticated (connection, USER, PASSWORD))
+  if (! is_authenticated (connection, USER, PASSWORD))
     return ask_for_authentication (connection, REALM);
 
   return secret_page (connection);
@@ -254,14 +254,14 @@ main ()
   cert_pem = load_file (SERVERCERTFILE);
 
   if ((key_pem == NULL) || (cert_pem == NULL))
-    {
-      printf ("The key/certificate files could not be read.\n");
-      if (NULL != key_pem)
-        free (key_pem);
-      if (NULL != cert_pem)
-        free (cert_pem);
-      return 1;
-    }
+  {
+    printf ("The key/certificate files could not be read.\n");
+    if (NULL != key_pem)
+      free (key_pem);
+    if (NULL != cert_pem)
+      free (cert_pem);
+    return 1;
+  }
 
   daemon =
     MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_TLS, PORT, 
NULL,
@@ -269,14 +269,14 @@ main ()
                       MHD_OPTION_HTTPS_MEM_KEY, key_pem,
                       MHD_OPTION_HTTPS_MEM_CERT, cert_pem, MHD_OPTION_END);
   if (NULL == daemon)
-    {
-      printf ("%s\n", cert_pem);
+  {
+    printf ("%s\n", cert_pem);
 
-      free (key_pem);
-      free (cert_pem);
+    free (key_pem);
+    free (cert_pem);
 
-      return 1;
-    }
+    return 1;
+  }
 
   (void) getchar ();
 
diff --git a/src/examples/authorization_example.c 
b/src/examples/authorization_example.c
index 40bffcb7..644b03ef 100644
--- a/src/examples/authorization_example.c
+++ b/src/examples/authorization_example.c
@@ -39,7 +39,7 @@
   "<html><head><title>Access denied</title></head><body>Access 
denied</body></html>"
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -50,7 +50,7 @@ ahc_echo (void *cls,
   static int aptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   char *user;
   char *pass;
   int fail;
diff --git a/src/examples/benchmark.c b/src/examples/benchmark.c
index 9b07e5c8..939995c9 100644
--- a/src/examples/benchmark.c
+++ b/src/examples/benchmark.c
@@ -106,7 +106,7 @@ uri_logger_cb (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
diff --git a/src/examples/benchmark_https.c b/src/examples/benchmark_https.c
index 53b83e0a..6f0cd478 100644
--- a/src/examples/benchmark_https.c
+++ b/src/examples/benchmark_https.c
@@ -106,7 +106,7 @@ uri_logger_cb (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
diff --git a/src/examples/chunked_example.c b/src/examples/chunked_example.c
index 9b2cb51c..19a37155 100644
--- a/src/examples/chunked_example.c
+++ b/src/examples/chunked_example.c
@@ -86,7 +86,7 @@ static const char simple_response_text[] =
   "<body>Simple response text</body></html>";
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -99,7 +99,7 @@ ahc_echo (void *cls,
   static int aptr;
   struct ResponseContentCallbackParam *callback_param;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/demo.c b/src/examples/demo.c
index c7ad4b30..978bd235 100644
--- a/src/examples/demo.c
+++ b/src/examples/demo.c
@@ -264,7 +264,7 @@ struct ResponseDataContext
  * @param dirname name of the directory to list
  * @return #MHD_YES on success, #MHD_NO on error
  */
-static int
+static enum MHD_Result
 list_directory (struct ResponseDataContext *rdc,
                 const char *dirname)
 {
@@ -444,7 +444,7 @@ struct UploadContext
  * @param size number of bytes in 'data'
  * @return #MHD_NO on allocation failure, #MHD_YES on success
  */
-static int
+static enum MHD_Result
 do_append (char **ret,
            const char *data,
            size_t size)
@@ -493,7 +493,7 @@ do_append (char **ret,
  * @return #MHD_YES to continue iterating,
  *         #MHD_NO to abort the iteration
  */
-static int
+static enum MHD_Result
 process_upload_data (void *cls,
                      enum MHD_ValueKind kind,
                      const char *key,
@@ -662,12 +662,12 @@ response_completed_callback (void *cls,
  * Return the current directory listing.
  *
  * @param connection connection to return the directory for
- * @return MHD_YES on success, MHD_NO on error
+ * @return #MHD_YES on success, #MHD_NO on error
  */
-static int
+static enum MHD_Result
 return_directory_response (struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
 
   (void) pthread_mutex_lock (&mutex);
   if (NULL == cached_directory_response)
@@ -696,7 +696,7 @@ return_directory_response (struct MHD_Connection 
*connection)
  * @param ptr our context
  * @return #MHD_YES on success, #MHD_NO to drop connection
  */
-static int
+static enum MHD_Result
 generate_page (void *cls,
                struct MHD_Connection *connection,
                const char *url,
@@ -706,7 +706,7 @@ generate_page (void *cls,
                size_t *upload_data_size, void **ptr)
 {
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   int fd;
   struct stat buf;
   (void) cls;               /* Unused. Silent compiler warning. */
diff --git a/src/examples/demo_https.c b/src/examples/demo_https.c
index 7cd98b68..2a60fcda 100644
--- a/src/examples/demo_https.c
+++ b/src/examples/demo_https.c
@@ -267,7 +267,7 @@ struct ResponseDataContext
  * @param dirname name of the directory to list
  * @return MHD_YES on success, MHD_NO on error
  */
-static int
+static enum MHD_Result
 list_directory (struct ResponseDataContext *rdc,
                 const char *dirname)
 {
@@ -447,7 +447,7 @@ struct UploadContext
  * @param size number of bytes in 'data'
  * @return #MHD_NO on allocation failure, #MHD_YES on success
  */
-static int
+static enum MHD_Result
 do_append (char **ret,
            const char *data,
            size_t size)
@@ -493,10 +493,10 @@ do_append (char **ret,
  *              specified offset
  * @param off offset of data in the overall value
  * @param size number of bytes in data available
- * @return MHD_YES to continue iterating,
- *         MHD_NO to abort the iteration
+ * @return #MHD_YES to continue iterating,
+ *         #MHD_NO to abort the iteration
  */
-static int
+static enum MHD_Result
 process_upload_data (void *cls,
                      enum MHD_ValueKind kind,
                      const char *key,
@@ -667,10 +667,10 @@ response_completed_callback (void *cls,
  * @param connection connection to return the directory for
  * @return MHD_YES on success, MHD_NO on error
  */
-static int
+static enum MHD_Result
 return_directory_response (struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
 
   (void) pthread_mutex_lock (&mutex);
   if (NULL == cached_directory_response)
@@ -699,7 +699,7 @@ return_directory_response (struct MHD_Connection 
*connection)
  * @param ptr our context
  * @return #MHD_YES on success, #MHD_NO to drop connection
  */
-static int
+static enum MHD_Result
 generate_page (void *cls,
                struct MHD_Connection *connection,
                const char *url,
@@ -709,7 +709,7 @@ generate_page (void *cls,
                size_t *upload_data_size, void **ptr)
 {
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   int fd;
   struct stat buf;
   (void) cls;               /* Unused. Silent compiler warning. */
diff --git a/src/examples/digest_auth_example.c 
b/src/examples/digest_auth_example.c
index 25fb4086..e3edf206 100644
--- a/src/examples/digest_auth_example.c
+++ b/src/examples/digest_auth_example.c
@@ -34,7 +34,7 @@
 
 #define MY_OPAQUE_STR "11733b200778ce33060f31c9af70a870ba96ddd4"
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -46,7 +46,7 @@ ahc_echo (void *cls,
   char *username;
   const char *password = "testpass";
   const char *realm = "address@hidden";
-  int ret;
+  enum MHD_Result ret;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) url;               /* Unused. Silent compiler warning. */
   (void) method;            /* Unused. Silent compiler warning. */
diff --git a/src/examples/dual_stack_example.c 
b/src/examples/dual_stack_example.c
index ffacec4a..15bafc44 100644
--- a/src/examples/dual_stack_example.c
+++ b/src/examples/dual_stack_example.c
@@ -28,7 +28,7 @@
 #define PAGE \
   "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd 
demo</body></html>"
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -39,7 +39,7 @@ ahc_echo (void *cls,
   static int aptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
   (void) upload_data;       /* Unused. Silent compiler warning. */
diff --git a/src/examples/fileserver_example.c 
b/src/examples/fileserver_example.c
index 46e6aad6..767810f9 100644
--- a/src/examples/fileserver_example.c
+++ b/src/examples/fileserver_example.c
@@ -41,7 +41,7 @@
 #define S_ISREG(x) (S_IFREG == (x & S_IFREG))
 #endif /* S_ISREG */
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -52,7 +52,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   int fd;
   struct stat buf;
   (void) cls;               /* Unused. Silent compiler warning. */
diff --git a/src/examples/fileserver_example_dirs.c 
b/src/examples/fileserver_example_dirs.c
index 2b544b69..e6c9ed1f 100644
--- a/src/examples/fileserver_example_dirs.c
+++ b/src/examples/fileserver_example_dirs.c
@@ -81,7 +81,7 @@ dir_reader (void *cls, uint64_t pos, char *buf, size_t max)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -92,7 +92,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   FILE *file;
   int fd;
   DIR *dir;
diff --git a/src/examples/fileserver_example_external_select.c 
b/src/examples/fileserver_example_external_select.c
index 187cdf7e..7209751f 100644
--- a/src/examples/fileserver_example_external_select.c
+++ b/src/examples/fileserver_example_external_select.c
@@ -48,7 +48,7 @@ free_callback (void *cls)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -59,7 +59,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   FILE *file;
   int fd;
   struct stat buf;
diff --git a/src/examples/http_chunked_compression.c 
b/src/examples/http_chunked_compression.c
index ba71923b..07fd00ec 100644
--- a/src/examples/http_chunked_compression.c
+++ b/src/examples/http_chunked_compression.c
@@ -51,13 +51,13 @@ struct Holder
   void *buf;
 };
 
-static int
+static enum MHD_Result
 compress_buf (z_stream *strm, const void *src, size_t src_size, size_t *offset,
               void **dest, size_t *dest_size,
               void *tmp)
 {
   unsigned int have;
-  int ret;
+  enum MHD_Result ret;
   int flush;
   void *tmp_dest;
   *dest = NULL;
@@ -152,14 +152,14 @@ free_cb (void *cls)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls, struct MHD_Connection *con, const char *url, const
           char *method, const char *version,
           const char *upload_data, size_t *upload_size, void **ptr)
 {
   struct Holder *holder;
   struct MHD_Response *res;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;
   (void) url;
   (void) method;
diff --git a/src/examples/http_compression.c b/src/examples/http_compression.c
index f7d8db21..0419a803 100644
--- a/src/examples/http_compression.c
+++ b/src/examples/http_compression.c
@@ -31,7 +31,7 @@
   "hello, hello. This is a 'hello world' message for the world, "   \
   "repeat, for the world.</body></html>"
 
-static int
+static enum MHD_Result
 can_compress (struct MHD_Connection *con)
 {
   const char *ae;
@@ -60,7 +60,7 @@ can_compress (struct MHD_Connection *con)
 }
 
 
-static int
+static enum MHD_Result
 body_compress (void **buf,
                size_t *buf_size)
 {
@@ -90,7 +90,7 @@ body_compress (void **buf,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -99,8 +99,8 @@ ahc_echo (void *cls,
           const char *upload_data, size_t *upload_data_size, void **ptr)
 {
   struct MHD_Response *response;
-  int ret;
-  int comp;
+  enum MHD_Result ret;
+  enum MHD_Result comp;
   size_t body_len;
   char *body_str;
   (void) cls;               /* Unused. Silent compiler warning. */
diff --git a/src/examples/https_fileserver_example.c 
b/src/examples/https_fileserver_example.c
index 627bc739..5148c8b6 100644
--- a/src/examples/https_fileserver_example.c
+++ b/src/examples/https_fileserver_example.c
@@ -113,7 +113,7 @@ file_free_callback (void *cls)
 
 
 /* HTTP access handler call back */
-static int
+static enum MHD_Result
 http_ahc (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -124,7 +124,7 @@ http_ahc (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   FILE *file;
   int fd;
   struct stat buf;
diff --git a/src/examples/minimal_example.c b/src/examples/minimal_example.c
index d6589cf9..a02b5d50 100644
--- a/src/examples/minimal_example.c
+++ b/src/examples/minimal_example.c
@@ -28,7 +28,7 @@
 #define PAGE \
   "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd 
demo</body></html>"
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -41,7 +41,7 @@ ahc_echo (void *cls,
   static int aptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
 
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/minimal_example_comet.c 
b/src/examples/minimal_example_comet.c
index 80c4258a..c36bf2ce 100644
--- a/src/examples/minimal_example_comet.c
+++ b/src/examples/minimal_example_comet.c
@@ -38,7 +38,7 @@ data_generator (void *cls, uint64_t pos, char *buf, size_t 
max)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -48,7 +48,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/minimal_example_empty.c 
b/src/examples/minimal_example_empty.c
index 2de1cc8b..986a2504 100644
--- a/src/examples/minimal_example_empty.c
+++ b/src/examples/minimal_example_empty.c
@@ -26,7 +26,7 @@
 #include <microhttpd.h>
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -38,7 +38,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
 
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/minimal_example_empty_tls.c 
b/src/examples/minimal_example_empty_tls.c
index e3daca5f..0b9a0e25 100644
--- a/src/examples/minimal_example_empty_tls.c
+++ b/src/examples/minimal_example_empty_tls.c
@@ -26,7 +26,7 @@
 #include <microhttpd.h>
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -38,7 +38,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
 
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/post_example.c b/src/examples/post_example.c
index 885cdb1a..55ca3aa8 100644
--- a/src/examples/post_example.c
+++ b/src/examples/post_example.c
@@ -205,10 +205,10 @@ get_session (struct MHD_Connection *connection)
  * @param connection connection to process
  * @param MHD_YES on success, MHD_NO on failure
  */
-typedef int (*PageHandler)(const void *cls,
-                           const char *mime,
-                           struct Session *session,
-                           struct MHD_Connection *connection);
+typedef enum MHD_Result (*PageHandler)(const void *cls,
+                                       const char *mime,
+                                       struct Session *session,
+                                       struct MHD_Connection *connection);
 
 
 /**
@@ -274,13 +274,13 @@ add_session_cookie (struct Session *session,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 serve_simple_form (const void *cls,
                    const char *mime,
                    struct Session *session,
                    struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   const char *form = cls;
   struct MHD_Response *response;
 
@@ -310,13 +310,13 @@ serve_simple_form (const void *cls,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 fill_v1_form (const void *cls,
               const char *mime,
               struct Session *session,
               struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   size_t slen;
   char *reply;
   struct MHD_Response *response;
@@ -359,13 +359,13 @@ fill_v1_form (const void *cls,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 fill_v1_v2_form (const void *cls,
                  const char *mime,
                  struct Session *session,
                  struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   char *reply;
   struct MHD_Response *response;
   size_t slen;
@@ -410,13 +410,13 @@ fill_v1_v2_form (const void *cls,
  * @param session session handle
  * @param connection connection to use
  */
-static int
+static enum MHD_Result
 not_found_page (const void *cls,
                 const char *mime,
                 struct Session *session,
                 struct MHD_Connection *connection)
 {
-  int ret;
+  enum MHD_Result ret;
   struct MHD_Response *response;
   (void) cls;     /* Unused. Silent compiler warning. */
   (void) session; /* Unused. Silent compiler warning. */
@@ -469,7 +469,7 @@ static struct Page pages[] = {
  * @return MHD_YES to continue iterating,
  *         MHD_NO to abort the iteration
  */
-static int
+static enum MHD_Result
 post_iterator (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
@@ -554,7 +554,7 @@ post_iterator (void *cls,
  *         MHS_NO if the socket must be closed due to a serios
  *         error while handling the request
  */
-static int
+static enum MHD_Result
 create_response (void *cls,
                  struct MHD_Connection *connection,
                  const char *url,
@@ -567,7 +567,7 @@ create_response (void *cls,
   struct MHD_Response *response;
   struct Request *request;
   struct Session *session;
-  int ret;
+  enum MHD_Result ret;
   unsigned int i;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/querystring_example.c 
b/src/examples/querystring_example.c
index 8abd8596..4bff891a 100644
--- a/src/examples/querystring_example.c
+++ b/src/examples/querystring_example.c
@@ -29,7 +29,7 @@
 #define PAGE \
   "<html><head><title>libmicrohttpd demo</title></head><body>Query string for 
&quot;%s&quot; was &quot;%s&quot;</body></html>"
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -42,7 +42,7 @@ ahc_echo (void *cls,
   const char *val;
   char *me;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
   (void) upload_data;       /* Unused. Silent compiler warning. */
diff --git a/src/examples/refuse_post_example.c 
b/src/examples/refuse_post_example.c
index 3a34f36d..7e100d9f 100644
--- a/src/examples/refuse_post_example.c
+++ b/src/examples/refuse_post_example.c
@@ -35,7 +35,7 @@ const char *askpage =
 #define BUSYPAGE \
   "<html><head><title>Webserver busy</title></head><body>We are too busy to 
process POSTs right now.</body></html>"
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -46,7 +46,7 @@ ahc_echo (void *cls,
   static int aptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/suspend_resume_epoll.c 
b/src/examples/suspend_resume_epoll.c
index a69fdc4a..afa1169c 100644
--- a/src/examples/suspend_resume_epoll.c
+++ b/src/examples/suspend_resume_epoll.c
@@ -43,7 +43,7 @@ static int epfd;
 static struct epoll_event evt;
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -52,7 +52,7 @@ ahc_echo (void *cls,
           const char *upload_data, size_t *upload_data_size, void **ptr)
 {
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   struct Request*req;
   struct itimerspec ts;
 
diff --git a/src/examples/timeout.c b/src/examples/timeout.c
index cfb66950..b31ff21f 100644
--- a/src/examples/timeout.c
+++ b/src/examples/timeout.c
@@ -29,7 +29,7 @@
 
 #define PORT 8080
 
-static int
+static enum MHD_Result
 answer_to_connection (void *cls,
                       struct MHD_Connection *connection,
                       const char *url,
@@ -41,7 +41,7 @@ answer_to_connection (void *cls,
 {
   const char *page = "<html><body>Hello timeout!</body></html>";
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/examples/upgrade_example.c b/src/examples/upgrade_example.c
index 98675e09..85a06646 100644
--- a/src/examples/upgrade_example.c
+++ b/src/examples/upgrade_example.c
@@ -240,7 +240,7 @@ uh_cb (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -252,7 +252,7 @@ ahc_echo (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;               /* Unused. Silent compiler warning. */
   (void) url;               /* Unused. Silent compiler warning. */
   (void) version;           /* Unused. Silent compiler warning. */
diff --git a/src/microhttpd/test_daemon.c b/src/microhttpd/test_daemon.c
index 4f600ef0..430c8e18 100644
--- a/src/microhttpd/test_daemon.c
+++ b/src/microhttpd/test_daemon.c
@@ -52,7 +52,7 @@ testStartError ()
 }
 
 
-static int
+static enum MHD_Result
 apc_nothing (void *cls,
              const struct sockaddr *addr,
              socklen_t addrlen)
@@ -63,7 +63,7 @@ apc_nothing (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 apc_all (void *cls,
          const struct sockaddr *addr,
          socklen_t addrlen)
@@ -74,7 +74,7 @@ apc_all (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_nothing (void *cls,
              struct MHD_Connection *connection,
              const char *url,
diff --git a/src/microhttpd/test_postprocessor.c 
b/src/microhttpd/test_postprocessor.c
index 2c37565c..e70171cc 100644
--- a/src/microhttpd/test_postprocessor.c
+++ b/src/microhttpd/test_postprocessor.c
@@ -92,7 +92,7 @@ mismatch (const char *a, const char *b)
 }
 
 
-static int
+static enum MHD_Result
 value_checker (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
@@ -140,10 +140,10 @@ value_checker (void *cls,
     fprintf (stderr,
              "Wanted: `%s' `%s' `%s' `%s' `%s'\n",
              want[idx],
-             want[idx+1],
-             want[idx+2],
-             want[idx+3],
-             want[idx+4]);
+             want[idx + 1],
+             want[idx + 2],
+             want[idx + 3],
+             want[idx + 4]);
     fprintf (stderr,
              "Unexpected result: %d/%d/%d/%d/%d/%d/%d\n",
              (idx < 0),
@@ -155,7 +155,7 @@ value_checker (void *cls,
              (0 != memcmp (data, &want[idx + 4][off], size)));
     return MHD_NO;
   }
-  if ( ( (NULL == want[idx+4]) &&
+  if ( ( (NULL == want[idx + 4]) &&
          (0 == off + size) ) ||
        (off + size == strlen (want[idx + 4])) )
     *want_off = idx + 5;
diff --git a/src/microhttpd/test_postprocessor_amp.c 
b/src/microhttpd/test_postprocessor_amp.c
index 54936979..8692d443 100644
--- a/src/microhttpd/test_postprocessor_amp.c
+++ b/src/microhttpd/test_postprocessor_amp.c
@@ -7,7 +7,7 @@
 
 uint64_t num_errors;
 
-int
+enum MHD_Result
 check_post (void *cls, enum MHD_ValueKind kind, const char*key,
             const char*filename, const char*content_type,
             const char*content_encoding, const char*data,
diff --git a/src/microhttpd/test_postprocessor_large.c 
b/src/microhttpd/test_postprocessor_large.c
index 0e2a10d2..678de808 100644
--- a/src/microhttpd/test_postprocessor_large.c
+++ b/src/microhttpd/test_postprocessor_large.c
@@ -33,7 +33,7 @@
 #include <unistd.h>
 #endif
 
-static int
+static enum MHD_Result
 value_checker (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
diff --git a/src/microhttpd/test_upgrade.c b/src/microhttpd/test_upgrade.c
index 404c2854..b3aecafa 100644
--- a/src/microhttpd/test_upgrade.c
+++ b/src/microhttpd/test_upgrade.c
@@ -843,7 +843,7 @@ upgrade_cb (void *cls,
  *         #MHD_NO if the socket must be closed due to a serios
  *         error while handling the request
  */
-static int
+static enum MHD_Result
 ahc_upgrade (void *cls,
              struct MHD_Connection *connection,
              const char *url,
@@ -854,7 +854,7 @@ ahc_upgrade (void *cls,
              void **con_cls)
 {
   struct MHD_Response *resp;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;
   (void) url;
   (void) method;                        /* Unused. Silent compiler warning. */
diff --git a/src/microhttpd/test_upgrade_large.c 
b/src/microhttpd/test_upgrade_large.c
index a17293db..d8d35838 100644
--- a/src/microhttpd/test_upgrade_large.c
+++ b/src/microhttpd/test_upgrade_large.c
@@ -867,7 +867,7 @@ upgrade_cb (void *cls,
  *         #MHD_NO if the socket must be closed due to a serios
  *         error while handling the request
  */
-static int
+static enum MHD_Result
 ahc_upgrade (void *cls,
              struct MHD_Connection *connection,
              const char *url,
@@ -878,7 +878,7 @@ ahc_upgrade (void *cls,
              void **con_cls)
 {
   struct MHD_Response *resp;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;
   (void) url;
   (void) method;                        /* Unused. Silent compiler warning. */
diff --git a/src/testcurl/https/test_empty_response.c 
b/src/testcurl/https/test_empty_response.c
index 6f29fbe5..28430388 100644
--- a/src/testcurl/https/test_empty_response.c
+++ b/src/testcurl/https/test_empty_response.c
@@ -38,7 +38,7 @@ extern const char srv_self_signed_cert_pem[];
 
 static int oneone;
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -48,7 +48,7 @@ ahc_echo (void *cls,
           void **unused)
 {
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url; (void) method; (void) version;               /* 
Unused. Silent compiler warning. */
   (void) upload_data; (void) upload_data_size; (void) unused;        /* 
Unused. Silent compiler warning. */
 
diff --git a/src/testcurl/https/test_https_get.c 
b/src/testcurl/https/test_https_get.c
index c012fa46..b8de81a9 100644
--- a/src/testcurl/https/test_https_get.c
+++ b/src/testcurl/https/test_https_get.c
@@ -91,7 +91,7 @@ test_secure_get (FILE *test_fd,
 }
 
 
-static int
+static enum MHD_Result
 ahc_empty (void *cls,
            struct MHD_Connection *connection,
            const char *url,
@@ -103,7 +103,7 @@ ahc_empty (void *cls,
 {
   static int ptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;
   (void) url;
   (void) url;
diff --git a/src/testcurl/https/test_https_get_select.c 
b/src/testcurl/https/test_https_get_select.c
index e5bd73f5..d42f4463 100644
--- a/src/testcurl/https/test_https_get_select.c
+++ b/src/testcurl/https/test_https_get_select.c
@@ -39,7 +39,7 @@ extern const char srv_self_signed_cert_pem[];
 
 static int oneone;
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -51,7 +51,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
   if (0 != strcmp (me, method))
diff --git a/src/testcurl/https/test_https_session_info.c 
b/src/testcurl/https/test_https_session_info.c
index e961edc4..f8b37cff 100644
--- a/src/testcurl/https/test_https_session_info.c
+++ b/src/testcurl/https/test_https_session_info.c
@@ -41,14 +41,15 @@ struct MHD_Daemon *d;
  * HTTP access handler call back
  * used to query negotiated security parameters
  */
-static int
+static enum MHD_Result
 query_session_ahc (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 **ptr)
 {
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
+  int gret;
   (void) cls; (void) url; (void) method; (void) version;       /* Unused. 
Silent compiler warning. */
   (void) upload_data; (void) upload_data_size;             /* Unused. Silent 
compiler warning. */
 
@@ -59,11 +60,11 @@ query_session_ahc (void *cls, struct MHD_Connection 
*connection,
   }
 
   if (GNUTLS_TLS1_1 !=
-      (ret = MHD_get_connection_info
-               (connection,
-               MHD_CONNECTION_INFO_PROTOCOL)->protocol))
+      (gret = MHD_get_connection_info
+                (connection,
+                MHD_CONNECTION_INFO_PROTOCOL)->protocol))
   {
-    if (GNUTLS_TLS1_2 == ret)
+    if (GNUTLS_TLS1_2 == gret)
     {
       /* as usual, TLS implementations sometimes don't
          quite do what was asked, just mildly complain... */
@@ -76,8 +77,8 @@ query_session_ahc (void *cls, struct MHD_Connection 
*connection,
       fprintf (stderr,
                "Error: requested protocol mismatch (wanted %d, got %d)\n",
                GNUTLS_TLS1_1,
-               ret);
-      return -1;
+               gret);
+      return MHD_NO;
     }
   }
 
diff --git a/src/testcurl/https/tls_test_common.c 
b/src/testcurl/https/tls_test_common.c
index f68f5979..a704be5f 100644
--- a/src/testcurl/https/tls_test_common.c
+++ b/src/testcurl/https/tls_test_common.c
@@ -176,7 +176,7 @@ copyBuffer (void *ptr,
 /**
  *  HTTP access handler call back
  */
-int
+enum MHD_Result
 http_ahc (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -188,7 +188,7 @@ http_ahc (void *cls,
 {
   static int aptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url; (void) version;            /* Unused. Silent 
compiler warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
@@ -211,7 +211,7 @@ http_ahc (void *cls,
 
 
 /* HTTP access handler call back */
-int
+enum MHD_Result
 http_dummy_ahc (void *cls,
                 struct MHD_Connection *connection,
                 const char *url,
diff --git a/src/testcurl/https/tls_test_common.h 
b/src/testcurl/https/tls_test_common.h
index 36f5ffa5..fd2a47b1 100644
--- a/src/testcurl/https/tls_test_common.h
+++ b/src/testcurl/https/tls_test_common.h
@@ -95,12 +95,12 @@ print_test_result (int test_outcome, char *test_name);
 size_t
 copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx);
 
-int
+enum MHD_Result
 http_ahc (void *cls, struct MHD_Connection *connection,
           const char *url, const char *method, const char *upload_data,
           const char *version, size_t *upload_data_size, void **ptr);
 
-int
+enum MHD_Result
 http_dummy_ahc (void *cls, struct MHD_Connection *connection,
                 const char *url, const char *method, const char *upload_data,
                 const char *version, size_t *upload_data_size,
diff --git a/src/testcurl/perf_get.c b/src/testcurl/perf_get.c
index 53992b17..eb33ea0c 100644
--- a/src/testcurl/perf_get.c
+++ b/src/testcurl/perf_get.c
@@ -151,7 +151,7 @@ copyBuffer (void *ptr,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -162,7 +162,7 @@ ahc_echo (void *cls,
 {
   static int ptr;
   const char *me = cls;
-  int ret;
+  enum MHD_Result ret;
   (void) url; (void) version;                      /* Unused. Silent compiler 
warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
diff --git a/src/testcurl/perf_get_concurrent.c 
b/src/testcurl/perf_get_concurrent.c
index 12c57dae..0471143c 100644
--- a/src/testcurl/perf_get_concurrent.c
+++ b/src/testcurl/perf_get_concurrent.c
@@ -146,7 +146,7 @@ copyBuffer (void *ptr,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -157,7 +157,7 @@ ahc_echo (void *cls,
 {
   static int ptr;
   const char *me = cls;
-  int ret;
+  enum MHD_Result ret;
   (void) url; (void) version;                      /* Unused. Silent compiler 
warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
diff --git a/src/testcurl/test_callback.c b/src/testcurl/test_callback.c
index 2e2be470..d9dfecef 100644
--- a/src/testcurl/test_callback.c
+++ b/src/testcurl/test_callback.c
@@ -58,7 +58,7 @@ called_twice (void *cls, uint64_t pos, char *buf, size_t max)
 }
 
 
-static int
+static enum MHD_Result
 callback (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -70,7 +70,7 @@ callback (void *cls,
 {
   struct callback_closure *cbc = calloc (1, sizeof(struct callback_closure));
   struct MHD_Response *r;
-  int ret;
+  enum MHD_Result ret;
 
   (void) cls;
   (void) url;                          /* Unused. Silent compiler warning. */
diff --git a/src/testcurl/test_concurrent_stop.c 
b/src/testcurl/test_concurrent_stop.c
index 750fddc8..6716f491 100644
--- a/src/testcurl/test_concurrent_stop.c
+++ b/src/testcurl/test_concurrent_stop.c
@@ -134,7 +134,7 @@ copyBuffer (void *ptr,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -146,7 +146,7 @@ ahc_echo (void *cls,
 {
   static int ptr;
   const char *me = cls;
-  int ret;
+  enum MHD_Result ret;
   (void) url; (void) version;                      /* Unused. Silent compiler 
warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
diff --git a/src/testcurl/test_delete.c b/src/testcurl/test_delete.c
index 8854cde7..ae62311b 100644
--- a/src/testcurl/test_delete.c
+++ b/src/testcurl/test_delete.c
@@ -81,7 +81,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -92,7 +92,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
   if (0 != strcasecmp ("DELETE", method))
diff --git a/src/testcurl/test_digestauth.c b/src/testcurl/test_digestauth.c
index 4de006b7..9b33eb9b 100644
--- a/src/testcurl/test_digestauth.c
+++ b/src/testcurl/test_digestauth.c
@@ -76,7 +76,7 @@ copyBuffer (void *ptr,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -90,7 +90,7 @@ ahc_echo (void *cls,
   char *username;
   const char *password = "testpass";
   const char *realm = "address@hidden";
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url;                          /* Unused. Silent compiler 
warning. */
   (void) method; (void) version; (void) upload_data; /* Unused. Silent 
compiler warning. */
   (void) upload_data_size; (void) unused;         /* Unused. Silent compiler 
warning. */
diff --git a/src/testcurl/test_digestauth_sha256.c 
b/src/testcurl/test_digestauth_sha256.c
index 3482d14d..ffeabd0c 100644
--- a/src/testcurl/test_digestauth_sha256.c
+++ b/src/testcurl/test_digestauth_sha256.c
@@ -77,7 +77,7 @@ copyBuffer (void *ptr,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -91,7 +91,7 @@ ahc_echo (void *cls,
   char *username;
   const char *password = "testpass";
   const char *realm = "address@hidden";
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url;                          /* Unused. Silent compiler 
warning. */
   (void) method; (void) version; (void) upload_data; /* Unused. Silent 
compiler warning. */
   (void) upload_data_size; (void) unused;         /* Unused. Silent compiler 
warning. */
diff --git a/src/testcurl/test_digestauth_with_arguments.c 
b/src/testcurl/test_digestauth_with_arguments.c
index f1927d1a..70d5f644 100644
--- a/src/testcurl/test_digestauth_with_arguments.c
+++ b/src/testcurl/test_digestauth_with_arguments.c
@@ -71,7 +71,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -84,7 +84,7 @@ ahc_echo (void *cls,
   char *username;
   const char *password = "testpass";
   const char *realm = "address@hidden";
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url;                          /* Unused. Silent compiler 
warning. */
   (void) method; (void) version; (void) upload_data; /* Unused. Silent 
compiler warning. */
   (void) upload_data_size; (void) unused;         /* Unused. Silent compiler 
warning. */
diff --git a/src/testcurl/test_get.c b/src/testcurl/test_get.c
index 3ab05d9a..91efdefd 100644
--- a/src/testcurl/test_get.c
+++ b/src/testcurl/test_get.c
@@ -98,7 +98,7 @@ log_cb (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -110,7 +110,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   const char *v;
   (void) version;
   (void) upload_data;
@@ -714,7 +714,7 @@ testStopRace (int poll_flag)
 }
 
 
-static int
+static enum MHD_Result
 ahc_empty (void *cls,
            struct MHD_Connection *connection,
            const char *url,
@@ -726,7 +726,7 @@ ahc_empty (void *cls,
 {
   static int ptr;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls;
   (void) url;
   (void) url;
diff --git a/src/testcurl/test_get_chunked.c b/src/testcurl/test_get_chunked.c
index 7be1db60..aa60e2f8 100644
--- a/src/testcurl/test_get_chunked.c
+++ b/src/testcurl/test_get_chunked.c
@@ -106,7 +106,7 @@ crcf (void *ptr)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -118,7 +118,7 @@ ahc_echo (void *cls,
   const char *me = cls;
   struct MHD_Response *response;
   struct MHD_Response **responseptr;
-  int ret;
+  enum MHD_Result ret;
 
   (void) url;
   (void) version;                      /* Unused. Silent compiler warning. */
diff --git a/src/testcurl/test_get_response_cleanup.c 
b/src/testcurl/test_get_response_cleanup.c
index 14c2f240..026fd254 100644
--- a/src/testcurl/test_get_response_cleanup.c
+++ b/src/testcurl/test_get_response_cleanup.c
@@ -116,7 +116,7 @@ push_free_callback (void *cls)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -128,7 +128,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) url; (void) version;                      /* Unused. Silent compiler 
warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
diff --git a/src/testcurl/test_get_sendfile.c b/src/testcurl/test_get_sendfile.c
index ad102f0b..0095731e 100644
--- a/src/testcurl/test_get_sendfile.c
+++ b/src/testcurl/test_get_sendfile.c
@@ -75,7 +75,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -87,7 +87,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   int fd;
   (void) url; (void) version;                      /* Unused. Silent compiler 
warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
@@ -490,7 +490,7 @@ testExternalGet ()
   if (cbc.pos != strlen (TESTSTR))
   {
     fprintf (stderr,
-             "Got %.*s instead of %S!\n",
+             "Got %.*s instead of %s!\n",
              (int) cbc.pos,
              cbc.buf,
              TESTSTR);
diff --git a/src/testcurl/test_iplimit.c b/src/testcurl/test_iplimit.c
index 60570886..3b61f827 100644
--- a/src/testcurl/test_iplimit.c
+++ b/src/testcurl/test_iplimit.c
@@ -74,7 +74,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -86,7 +86,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
   if (0 != strcmp (me, method))
diff --git a/src/testcurl/test_large_put.c b/src/testcurl/test_large_put.c
index b52246ef..d93942e4 100644
--- a/src/testcurl/test_large_put.c
+++ b/src/testcurl/test_large_put.c
@@ -118,7 +118,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -129,7 +129,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   static size_t processed;
   (void) version;        /* Unused. Silent compiler warning. */
 
diff --git a/src/testcurl/test_long_header.c b/src/testcurl/test_long_header.c
index 17d8904b..54030c21 100644
--- a/src/testcurl/test_long_header.c
+++ b/src/testcurl/test_long_header.c
@@ -46,7 +46,7 @@
 
 static int oneone;
 
-static int
+static enum MHD_Result
 apc_all (void *cls, const struct sockaddr *addr, socklen_t addrlen)
 {
   (void) cls; (void) addr; (void) addrlen;   /* Unused. Silent compiler 
warning. */
@@ -69,7 +69,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -80,7 +80,7 @@ ahc_echo (void *cls,
 {
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data;      /* Unused. Silent compiler warning. 
*/
   (void) upload_data_size; (void) unused;  /* Unused. Silent compiler warning. 
*/
 
diff --git a/src/testcurl/test_parse_cookies.c 
b/src/testcurl/test_parse_cookies.c
index d4c291ea..8a786cc2 100644
--- a/src/testcurl/test_parse_cookies.c
+++ b/src/testcurl/test_parse_cookies.c
@@ -59,7 +59,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -71,7 +71,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   const char *hdr;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
diff --git a/src/testcurl/test_patch.c b/src/testcurl/test_patch.c
index 86327b0d..6be3ab30 100644
--- a/src/testcurl/test_patch.c
+++ b/src/testcurl/test_patch.c
@@ -81,7 +81,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -92,7 +92,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
   if (0 != strcasecmp ("PATCH", method))
diff --git a/src/testcurl/test_post.c b/src/testcurl/test_post.c
index 97c9bcc9..675f8db6 100644
--- a/src/testcurl/test_post.c
+++ b/src/testcurl/test_post.c
@@ -97,7 +97,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
  * in that it fails to support incremental processing.
  * (to be fixed in the future)
  */
-static int
+static enum MHD_Result
 post_iterator (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
@@ -120,7 +120,7 @@ post_iterator (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -132,7 +132,7 @@ ahc_echo (void *cls,
   static int eok;
   struct MHD_Response *response;
   struct MHD_PostProcessor *pp;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) version;      /* Unused. Silent compiler warning. */
 
   if (0 != strcasecmp ("POST", method))
@@ -562,7 +562,7 @@ testExternalPost ()
 }
 
 
-static int
+static enum MHD_Result
 ahc_cancel (void *cls,
             struct MHD_Connection *connection,
             const char *url,
@@ -572,7 +572,7 @@ ahc_cancel (void *cls,
             void **unused)
 {
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url; (void) version;            /* Unused. Silent 
compiler warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
diff --git a/src/testcurl/test_post_loop.c b/src/testcurl/test_post_loop.c
index 38f9de6e..0eaf2730 100644
--- a/src/testcurl/test_post_loop.c
+++ b/src/testcurl/test_post_loop.c
@@ -72,7 +72,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -83,7 +83,7 @@ ahc_echo (void *cls,
 {
   static int marker;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url; (void) version;            /* Unused. Silent 
compiler warning. */
   (void) upload_data; (void) upload_data_size;     /* Unused. Silent compiler 
warning. */
 
diff --git a/src/testcurl/test_postform.c b/src/testcurl/test_postform.c
index 25e6d0e4..18a0fc62 100644
--- a/src/testcurl/test_postform.c
+++ b/src/testcurl/test_postform.c
@@ -93,7 +93,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
  * in that it fails to support incremental processing.
  * (to be fixed in the future)
  */
-static int
+static enum MHD_Result
 post_iterator (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
@@ -119,7 +119,7 @@ post_iterator (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -131,7 +131,7 @@ ahc_echo (void *cls,
   static int eok;
   struct MHD_Response *response;
   struct MHD_PostProcessor *pp;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) version;      /* Unused. Silent compiler warning. */
 
   if (0 != strcmp ("POST", method))
diff --git a/src/testcurl/test_process_arguments.c 
b/src/testcurl/test_process_arguments.c
index dc50396d..f7e03531 100644
--- a/src/testcurl/test_process_arguments.c
+++ b/src/testcurl/test_process_arguments.c
@@ -60,7 +60,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -72,7 +72,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   const char *hdr;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
diff --git a/src/testcurl/test_process_headers.c 
b/src/testcurl/test_process_headers.c
index 34200082..5784f5b7 100644
--- a/src/testcurl/test_process_headers.c
+++ b/src/testcurl/test_process_headers.c
@@ -66,7 +66,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 kv_cb (void *cls, enum MHD_ValueKind kind, const char *key, const char *value)
 {
   if ((0 == strcmp (key, MHD_HTTP_HEADER_HOST)) &&
@@ -80,7 +80,7 @@ kv_cb (void *cls, enum MHD_ValueKind kind, const char *key, 
const char *value)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -92,7 +92,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   const char *hdr;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
diff --git a/src/testcurl/test_put.c b/src/testcurl/test_put.c
index 2326310a..c582a418 100644
--- a/src/testcurl/test_put.c
+++ b/src/testcurl/test_put.c
@@ -81,7 +81,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -92,7 +92,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
   if (0 != strcasecmp ("PUT", method))
diff --git a/src/testcurl/test_put_chunked.c b/src/testcurl/test_put_chunked.c
index 0824b286..e393523d 100644
--- a/src/testcurl/test_put_chunked.c
+++ b/src/testcurl/test_put_chunked.c
@@ -81,7 +81,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -92,7 +92,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   int have;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
diff --git a/src/testcurl/test_quiesce.c b/src/testcurl/test_quiesce.c
index 8a79a3c4..ac0ade30 100644
--- a/src/testcurl/test_quiesce.c
+++ b/src/testcurl/test_quiesce.c
@@ -70,7 +70,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -82,7 +82,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
   if (0 != strcmp (me, method))
diff --git a/src/testcurl/test_quiesce_stream.c 
b/src/testcurl/test_quiesce_stream.c
index cb1e71cb..5a3e601e 100644
--- a/src/testcurl/test_quiesce_stream.c
+++ b/src/testcurl/test_quiesce_stream.c
@@ -132,7 +132,7 @@ free_crc_data (void *crc_data)
 }
 
 
-static int
+static enum MHD_Result
 http_AccessHandlerCallback (void *cls,
                             struct MHD_Connection *connection,
                             const char *url,
@@ -142,7 +142,7 @@ http_AccessHandlerCallback (void *cls,
                             size_t *upload_data_size,
                             void **con_cls)
 {
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) url;                          /* Unused. Silent compiler 
warning. */
   (void) method; (void) version; (void) upload_data; /* Unused. Silent 
compiler warning. */
   (void) upload_data_size;                       /* Unused. Silent compiler 
warning. */
diff --git a/src/testcurl/test_termination.c b/src/testcurl/test_termination.c
index 17940020..5541ae30 100644
--- a/src/testcurl/test_termination.c
+++ b/src/testcurl/test_termination.c
@@ -47,7 +47,7 @@
 #include <windows.h>
 #endif
 
-static int
+static enum MHD_Result
 connection_handler (void *cls,
                     struct MHD_Connection *connection,
                     const char *url,
@@ -76,7 +76,7 @@ connection_handler (void *cls,
   struct MHD_Response *response =
     MHD_create_response_from_buffer (strlen ("Response"), "Response",
                                      MHD_RESPMEM_PERSISTENT);
-  int ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
+  enum MHD_Result ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
   MHD_destroy_response (response);
 
   return ret;
diff --git a/src/testcurl/test_timeout.c b/src/testcurl/test_timeout.c
index db1c1e6a..018195f4 100644
--- a/src/testcurl/test_timeout.c
+++ b/src/testcurl/test_timeout.c
@@ -121,7 +121,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -132,7 +132,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
   if (0 != strcmp ("PUT", method))
diff --git a/src/testcurl/test_urlparse.c b/src/testcurl/test_urlparse.c
index e8770330..d089ab22 100644
--- a/src/testcurl/test_urlparse.c
+++ b/src/testcurl/test_urlparse.c
@@ -69,7 +69,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 test_values (void *cls,
              enum MHD_ValueKind kind,
              const char *key,
@@ -89,7 +89,7 @@ test_values (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -101,7 +101,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
   if (0 != strcmp (me, method))
diff --git a/src/testzzuf/test_get.c b/src/testzzuf/test_get.c
index 83d92ab3..9ef0d4f7 100644
--- a/src/testzzuf/test_get.c
+++ b/src/testzzuf/test_get.c
@@ -60,7 +60,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -72,7 +72,7 @@ ahc_echo (void *cls,
   static int ptr;
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data; (void) upload_data_size;       /* 
Unused. Silent compiler warning. */
 
   if (0 != strcmp (me, method))
diff --git a/src/testzzuf/test_get_chunked.c b/src/testzzuf/test_get_chunked.c
index 8ad7dd6b..9a6536c0 100644
--- a/src/testzzuf/test_get_chunked.c
+++ b/src/testzzuf/test_get_chunked.c
@@ -89,7 +89,7 @@ crcf (void *ptr)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -101,7 +101,7 @@ ahc_echo (void *cls,
   const char *me = cls;
   struct MHD_Response *response;
   struct MHD_Response **responseptr;
-  int ret;
+  enum MHD_Result ret;
 
   (void) url;
   (void) version;                      /* Unused. Silent compiler warning. */
diff --git a/src/testzzuf/test_long_header.c b/src/testzzuf/test_long_header.c
index 6595ad4e..add99234 100644
--- a/src/testzzuf/test_long_header.c
+++ b/src/testzzuf/test_long_header.c
@@ -47,7 +47,7 @@
 
 static int oneone;
 
-static int
+static enum MHD_Result
 apc_all (void *cls, const struct sockaddr *addr, socklen_t addrlen)
 {
   (void) cls; (void) addr; (void) addrlen;   /* Unused. Silent compiler 
warning. */
@@ -70,7 +70,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -81,7 +81,7 @@ ahc_echo (void *cls,
 {
   const char *me = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) upload_data;      /* Unused. Silent compiler warning. 
*/
   (void) upload_data_size; (void) unused;  /* Unused. Silent compiler warning. 
*/
 
@@ -128,6 +128,11 @@ testLongUrlGet ()
 
     c = curl_easy_init ();
     url = malloc (VERY_LONG);
+    if (NULL == url)
+    {
+      zzuf_socat_stop ();
+      return 1;
+    }
     memset (url, 'a', VERY_LONG);
     url[VERY_LONG - 1] = '\0';
     memcpy (url, "http://127.0.0.1:11081/";,
@@ -189,6 +194,12 @@ testLongHeaderGet ()
     fprintf (stderr, ".");
     c = curl_easy_init ();
     url = malloc (VERY_LONG);
+    if (NULL == url)
+    {
+      zzuf_socat_stop ();
+      curl_easy_cleanup (c);
+      return 16;
+    }
     memset (url, 'a', VERY_LONG);
     url[VERY_LONG - 1] = '\0';
     url[VERY_LONG / 2] = ':';
diff --git a/src/testzzuf/test_post.c b/src/testzzuf/test_post.c
index 637423c8..e3d8512c 100644
--- a/src/testzzuf/test_post.c
+++ b/src/testzzuf/test_post.c
@@ -84,7 +84,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
  * in that it fails to support incremental processing.
  * (to be fixed in the future)
  */
-static int
+static enum MHD_Result
 post_iterator (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
@@ -107,7 +107,7 @@ post_iterator (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -119,7 +119,7 @@ ahc_echo (void *cls,
   static int eok;
   struct MHD_Response *response;
   struct MHD_PostProcessor *pp;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) version;      /* Unused. Silent compiler warning. */
 
   if (0 != strcmp ("POST", method))
diff --git a/src/testzzuf/test_post_form.c b/src/testzzuf/test_post_form.c
index a253b96d..f994ab24 100644
--- a/src/testzzuf/test_post_form.c
+++ b/src/testzzuf/test_post_form.c
@@ -82,7 +82,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
  * in that it fails to support incremental processing.
  * (to be fixed in the future)
  */
-static int
+static enum MHD_Result
 post_iterator (void *cls,
                enum MHD_ValueKind kind,
                const char *key,
@@ -110,7 +110,7 @@ post_iterator (void *cls,
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -122,7 +122,7 @@ ahc_echo (void *cls,
   static int eok;
   struct MHD_Response *response;
   struct MHD_PostProcessor *pp;
-  int ret;
+  enum MHD_Result ret;
   (void) cls; (void) version;      /* Unused. Silent compiler warning. */
 
   if (0 != strcmp ("POST", method))
diff --git a/src/testzzuf/test_put.c b/src/testzzuf/test_put.c
index 2c79c759..4658d0d4 100644
--- a/src/testzzuf/test_put.c
+++ b/src/testzzuf/test_put.c
@@ -76,7 +76,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -87,7 +87,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
   if (0 != strcmp ("PUT", method))
diff --git a/src/testzzuf/test_put_chunked.c b/src/testzzuf/test_put_chunked.c
index 29108008..35196843 100644
--- a/src/testzzuf/test_put_chunked.c
+++ b/src/testzzuf/test_put_chunked.c
@@ -76,7 +76,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -87,7 +87,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   int have;
   (void) version; (void) unused;   /* Unused. Silent compiler warning. */
 
diff --git a/src/testzzuf/test_put_large.c b/src/testzzuf/test_put_large.c
index 56b076c5..abda22cb 100644
--- a/src/testzzuf/test_put_large.c
+++ b/src/testzzuf/test_put_large.c
@@ -84,7 +84,7 @@ copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 }
 
 
-static int
+static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
@@ -95,7 +95,7 @@ ahc_echo (void *cls,
 {
   int *done = cls;
   struct MHD_Response *response;
-  int ret;
+  enum MHD_Result ret;
   (void) version; (void) unused; /* Unused. Silent compiler warning. */
 
   if (0 != strcmp ("PUT", method))
@@ -376,6 +376,8 @@ main (int argc, char *const *argv)
   if (0 != curl_global_init (CURL_GLOBAL_WIN32))
     return 2;
   put_buffer = malloc (PUT_SIZE);
+  if (0 == put_buffer)
+    return 77;
   memset (put_buffer, 1, PUT_SIZE);
   if (MHD_YES == MHD_is_feature_supported (MHD_FEATURE_THREADS))
   {

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