Tree wide: Reformat with clang-format.
[collectd.git] / src / apache.c
index 7ccdb60..eaef61b 100644 (file)
 
 #include <curl/curl.h>
 
-enum server_enum
-{
-       APACHE = 0,
-       LIGHTTPD
-};
-
-struct apache_s
-{
-       int server_type;
-       char *name;
-       char *host;
-       char *url;
-       char *user;
-       char *pass;
-       _Bool verify_peer;
-       _Bool verify_host;
-       char *cacert;
-       char *ssl_ciphers;
-       char *server; /* user specific server type */
-       char *apache_buffer;
-       char apache_curl_error[CURL_ERROR_SIZE];
-       size_t apache_buffer_size;
-       size_t apache_buffer_fill;
-       int timeout;
-       CURL *curl;
+enum server_enum { APACHE = 0, LIGHTTPD };
+
+struct apache_s {
+  int server_type;
+  char *name;
+  char *host;
+  char *url;
+  char *user;
+  char *pass;
+  _Bool verify_peer;
+  _Bool verify_host;
+  char *cacert;
+  char *ssl_ciphers;
+  char *server; /* user specific server type */
+  char *apache_buffer;
+  char apache_curl_error[CURL_ERROR_SIZE];
+  size_t apache_buffer_size;
+  size_t apache_buffer_fill;
+  int timeout;
+  CURL *curl;
 }; /* apache_s */
 
 typedef struct apache_s apache_t;
 
 /* TODO: Remove this prototype */
-static int apache_read_host (user_data_t *user_data);
-
-static void apache_free (void *arg)
-{
-       apache_t *st = arg;
-
-       if (st == NULL)
-               return;
-
-       sfree (st->name);
-       sfree (st->host);
-       sfree (st->url);
-       sfree (st->user);
-       sfree (st->pass);
-       sfree (st->cacert);
-       sfree (st->ssl_ciphers);
-       sfree (st->server);
-       sfree (st->apache_buffer);
-       if (st->curl) {
-               curl_easy_cleanup(st->curl);
-               st->curl = NULL;
-       }
-       sfree (st);
+static int apache_read_host(user_data_t *user_data);
+
+static void apache_free(void *arg) {
+  apache_t *st = arg;
+
+  if (st == NULL)
+    return;
+
+  sfree(st->name);
+  sfree(st->host);
+  sfree(st->url);
+  sfree(st->user);
+  sfree(st->pass);
+  sfree(st->cacert);
+  sfree(st->ssl_ciphers);
+  sfree(st->server);
+  sfree(st->apache_buffer);
+  if (st->curl) {
+    curl_easy_cleanup(st->curl);
+    st->curl = NULL;
+  }
+  sfree(st);
 } /* apache_free */
 
-static size_t apache_curl_callback (void *buf, size_t size, size_t nmemb,
-               void *user_data)
-{
-       size_t len = size * nmemb;
-       apache_t *st;
-
-       st = user_data;
-       if (st == NULL)
-       {
-               ERROR ("apache plugin: apache_curl_callback: "
-                               "user_data pointer is NULL.");
-               return (0);
-       }
-
-       if (len == 0)
-               return (len);
-
-       if ((st->apache_buffer_fill + len) >= st->apache_buffer_size)
-       {
-               char *temp;
-
-               temp = realloc (st->apache_buffer,
-                               st->apache_buffer_fill + len + 1);
-               if (temp == NULL)
-               {
-                       ERROR ("apache plugin: realloc failed.");
-                       return (0);
-               }
-               st->apache_buffer = temp;
-               st->apache_buffer_size = st->apache_buffer_fill + len + 1;
-       }
-
-       memcpy (st->apache_buffer + st->apache_buffer_fill, (char *) buf, len);
-       st->apache_buffer_fill += len;
-       st->apache_buffer[st->apache_buffer_fill] = 0;
-
-       return (len);
+static size_t apache_curl_callback(void *buf, size_t size, size_t nmemb,
+                                   void *user_data) {
+  size_t len = size * nmemb;
+  apache_t *st;
+
+  st = user_data;
+  if (st == NULL) {
+    ERROR("apache plugin: apache_curl_callback: "
+          "user_data pointer is NULL.");
+    return (0);
+  }
+
+  if (len == 0)
+    return (len);
+
+  if ((st->apache_buffer_fill + len) >= st->apache_buffer_size) {
+    char *temp;
+
+    temp = realloc(st->apache_buffer, st->apache_buffer_fill + len + 1);
+    if (temp == NULL) {
+      ERROR("apache plugin: realloc failed.");
+      return (0);
+    }
+    st->apache_buffer = temp;
+    st->apache_buffer_size = st->apache_buffer_fill + len + 1;
+  }
+
+  memcpy(st->apache_buffer + st->apache_buffer_fill, (char *)buf, len);
+  st->apache_buffer_fill += len;
+  st->apache_buffer[st->apache_buffer_fill] = 0;
+
+  return (len);
 } /* int apache_curl_callback */
 
-static size_t apache_header_callback (void *buf, size_t size, size_t nmemb,
-               void *user_data)
-{
-       size_t len = size * nmemb;
-       apache_t *st;
-
-       st = user_data;
-       if (st == NULL)
-       {
-               ERROR ("apache plugin: apache_header_callback: "
-                               "user_data pointer is NULL.");
-               return (0);
-       }
-
-       if (len == 0)
-               return (len);
-
-       /* look for the Server header */
-       if (strncasecmp (buf, "Server: ", strlen ("Server: ")) != 0)
-               return (len);
-
-       if (strstr (buf, "Apache") != NULL)
-               st->server_type = APACHE;
-       else if (strstr (buf, "lighttpd") != NULL)
-               st->server_type = LIGHTTPD;
-       else if (strstr (buf, "IBM_HTTP_Server") != NULL)
-               st->server_type = APACHE;
-       else
-       {
-               const char *hdr = buf;
-
-               hdr += strlen ("Server: ");
-               NOTICE ("apache plugin: Unknown server software: %s", hdr);
-       }
-
-       return (len);
+static size_t apache_header_callback(void *buf, size_t size, size_t nmemb,
+                                     void *user_data) {
+  size_t len = size * nmemb;
+  apache_t *st;
+
+  st = user_data;
+  if (st == NULL) {
+    ERROR("apache plugin: apache_header_callback: "
+          "user_data pointer is NULL.");
+    return (0);
+  }
+
+  if (len == 0)
+    return (len);
+
+  /* look for the Server header */
+  if (strncasecmp(buf, "Server: ", strlen("Server: ")) != 0)
+    return (len);
+
+  if (strstr(buf, "Apache") != NULL)
+    st->server_type = APACHE;
+  else if (strstr(buf, "lighttpd") != NULL)
+    st->server_type = LIGHTTPD;
+  else if (strstr(buf, "IBM_HTTP_Server") != NULL)
+    st->server_type = APACHE;
+  else {
+    const char *hdr = buf;
+
+    hdr += strlen("Server: ");
+    NOTICE("apache plugin: Unknown server software: %s", hdr);
+  }
+
+  return (len);
 } /* apache_header_callback */
 
 /* Configuration handling functiions
@@ -171,443 +157,421 @@ static size_t apache_header_callback (void *buf, size_t size, size_t nmemb,
  *   URL ...
  * </Plugin>
  */
-static int config_add (oconfig_item_t *ci)
-{
-       apache_t *st;
-       int status;
-
-       st = calloc (1, sizeof (*st));
-       if (st == NULL)
-       {
-               ERROR ("apache plugin: calloc failed.");
-               return (-1);
-       }
-
-       st->timeout = -1;
-
-       status = cf_util_get_string (ci, &st->name);
-       if (status != 0)
-       {
-               sfree (st);
-               return (status);
-       }
-       assert (st->name != NULL);
-
-       for (int i = 0; i < ci->children_num; i++)
-       {
-               oconfig_item_t *child = ci->children + i;
-
-               if (strcasecmp ("URL", child->key) == 0)
-                       status = cf_util_get_string (child, &st->url);
-               else if (strcasecmp ("Host", child->key) == 0)
-                       status = cf_util_get_string (child, &st->host);
-               else if (strcasecmp ("User", child->key) == 0)
-                       status = cf_util_get_string (child, &st->user);
-               else if (strcasecmp ("Password", child->key) == 0)
-                       status = cf_util_get_string (child, &st->pass);
-               else if (strcasecmp ("VerifyPeer", child->key) == 0)
-                       status = cf_util_get_boolean (child, &st->verify_peer);
-               else if (strcasecmp ("VerifyHost", child->key) == 0)
-                       status = cf_util_get_boolean (child, &st->verify_host);
-               else if (strcasecmp ("CACert", child->key) == 0)
-                       status = cf_util_get_string (child, &st->cacert);
-               else if (strcasecmp ("SSLCiphers", child->key) == 0)
-                       status = cf_util_get_string (child, &st->ssl_ciphers);
-               else if (strcasecmp ("Server", child->key) == 0)
-                       status = cf_util_get_string (child, &st->server);
-               else if (strcasecmp ("Timeout", child->key) == 0)
-                       status = cf_util_get_int (child, &st->timeout);
-               else
-               {
-                       WARNING ("apache plugin: Option `%s' not allowed here.",
-                                       child->key);
-                       status = -1;
-               }
-
-               if (status != 0)
-                       break;
-       }
-
-       /* Check if struct is complete.. */
-       if ((status == 0) && (st->url == NULL))
-       {
-               ERROR ("apache plugin: Instance `%s': "
-                               "No URL has been configured.",
-                               st->name);
-               status = -1;
-       }
-
-       if (status == 0)
-       {
-               char callback_name[3*DATA_MAX_NAME_LEN];
-
-               ssnprintf (callback_name, sizeof (callback_name),
-                               "apache/%s/%s",
-                               (st->host != NULL) ? st->host : hostname_g,
-                               (st->name != NULL) ? st->name : "default");
-
-               status = plugin_register_complex_read (/* group = */ NULL,
-                               /* name      = */ callback_name,
-                               /* callback  = */ apache_read_host,
-                               /* interval  = */ 0,
-                               &(user_data_t) {
-                                       .data = st,
-                                       .free_func = apache_free,
-                               });
-
-       }
-
-       if (status != 0)
-       {
-               apache_free (st);
-               return (-1);
-       }
-
-       return (0);
+static int config_add(oconfig_item_t *ci) {
+  apache_t *st;
+  int status;
+
+  st = calloc(1, sizeof(*st));
+  if (st == NULL) {
+    ERROR("apache plugin: calloc failed.");
+    return (-1);
+  }
+
+  st->timeout = -1;
+
+  status = cf_util_get_string(ci, &st->name);
+  if (status != 0) {
+    sfree(st);
+    return (status);
+  }
+  assert(st->name != NULL);
+
+  for (int i = 0; i < ci->children_num; i++) {
+    oconfig_item_t *child = ci->children + i;
+
+    if (strcasecmp("URL", child->key) == 0)
+      status = cf_util_get_string(child, &st->url);
+    else if (strcasecmp("Host", child->key) == 0)
+      status = cf_util_get_string(child, &st->host);
+    else if (strcasecmp("User", child->key) == 0)
+      status = cf_util_get_string(child, &st->user);
+    else if (strcasecmp("Password", child->key) == 0)
+      status = cf_util_get_string(child, &st->pass);
+    else if (strcasecmp("VerifyPeer", child->key) == 0)
+      status = cf_util_get_boolean(child, &st->verify_peer);
+    else if (strcasecmp("VerifyHost", child->key) == 0)
+      status = cf_util_get_boolean(child, &st->verify_host);
+    else if (strcasecmp("CACert", child->key) == 0)
+      status = cf_util_get_string(child, &st->cacert);
+    else if (strcasecmp("SSLCiphers", child->key) == 0)
+      status = cf_util_get_string(child, &st->ssl_ciphers);
+    else if (strcasecmp("Server", child->key) == 0)
+      status = cf_util_get_string(child, &st->server);
+    else if (strcasecmp("Timeout", child->key) == 0)
+      status = cf_util_get_int(child, &st->timeout);
+    else {
+      WARNING("apache plugin: Option `%s' not allowed here.", child->key);
+      status = -1;
+    }
+
+    if (status != 0)
+      break;
+  }
+
+  /* Check if struct is complete.. */
+  if ((status == 0) && (st->url == NULL)) {
+    ERROR("apache plugin: Instance `%s': "
+          "No URL has been configured.",
+          st->name);
+    status = -1;
+  }
+
+  if (status == 0) {
+    char callback_name[3 * DATA_MAX_NAME_LEN];
+
+    ssnprintf(callback_name, sizeof(callback_name), "apache/%s/%s",
+              (st->host != NULL) ? st->host : hostname_g,
+              (st->name != NULL) ? st->name : "default");
+
+    status = plugin_register_complex_read(
+        /* group = */ NULL,
+        /* name      = */ callback_name,
+        /* callback  = */ apache_read_host,
+        /* interval  = */ 0, &(user_data_t){
+                                 .data = st, .free_func = apache_free,
+                             });
+  }
+
+  if (status != 0) {
+    apache_free(st);
+    return (-1);
+  }
+
+  return (0);
 } /* int config_add */
 
-static int config (oconfig_item_t *ci)
-{
-       int status = 0;
-
-       for (int i = 0; i < ci->children_num; i++)
-       {
-               oconfig_item_t *child = ci->children + i;
-
-               if (strcasecmp ("Instance", child->key) == 0)
-                       config_add (child);
-               else
-                       WARNING ("apache plugin: The configuration option "
-                                       "\"%s\" is not allowed here. Did you "
-                                       "forget to add an <Instance /> block "
-                                       "around the configuration?",
-                                       child->key);
-       } /* for (ci->children) */
-
-       return (status);
+static int config(oconfig_item_t *ci) {
+  int status = 0;
+
+  for (int i = 0; i < ci->children_num; i++) {
+    oconfig_item_t *child = ci->children + i;
+
+    if (strcasecmp("Instance", child->key) == 0)
+      config_add(child);
+    else
+      WARNING("apache plugin: The configuration option "
+              "\"%s\" is not allowed here. Did you "
+              "forget to add an <Instance /> block "
+              "around the configuration?",
+              child->key);
+  } /* for (ci->children) */
+
+  return (status);
 } /* int config */
 
 /* initialize curl for each host */
-static int init_host (apache_t *st) /* {{{ */
+static int init_host(apache_t *st) /* {{{ */
 {
-       assert (st->url != NULL);
-       /* (Assured by `config_add') */
-
-       if (st->curl != NULL)
-       {
-               curl_easy_cleanup (st->curl);
-               st->curl = NULL;
-       }
-
-       if ((st->curl = curl_easy_init ()) == NULL)
-       {
-               ERROR ("apache plugin: init_host: `curl_easy_init' failed.");
-               return (-1);
-       }
-
-       curl_easy_setopt (st->curl, CURLOPT_NOSIGNAL, 1L);
-       curl_easy_setopt (st->curl, CURLOPT_WRITEFUNCTION, apache_curl_callback);
-       curl_easy_setopt (st->curl, CURLOPT_WRITEDATA, st);
-
-       /* not set as yet if the user specified string doesn't match apache or
-        * lighttpd, then ignore it. Headers will be parsed to find out the
-        * server type */
-       st->server_type = -1;
-
-       if (st->server != NULL)
-       {
-               if (strcasecmp(st->server, "apache") == 0)
-                       st->server_type = APACHE;
-               else if (strcasecmp(st->server, "lighttpd") == 0)
-                       st->server_type = LIGHTTPD;
-               else if (strcasecmp(st->server, "ibm_http_server") == 0)
-                       st->server_type = APACHE;
-               else
-                       WARNING ("apache plugin: Unknown `Server' setting: %s",
-                                       st->server);
-       }
-
-       /* if not found register a header callback to determine the server_type */
-       if (st->server_type == -1)
-       {
-               curl_easy_setopt (st->curl, CURLOPT_HEADERFUNCTION, apache_header_callback);
-               curl_easy_setopt (st->curl, CURLOPT_WRITEHEADER, st);
-       }
-
-       curl_easy_setopt (st->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
-       curl_easy_setopt (st->curl, CURLOPT_ERRORBUFFER, st->apache_curl_error);
-
-       if (st->user != NULL)
-       {
+  assert(st->url != NULL);
+  /* (Assured by `config_add') */
+
+  if (st->curl != NULL) {
+    curl_easy_cleanup(st->curl);
+    st->curl = NULL;
+  }
+
+  if ((st->curl = curl_easy_init()) == NULL) {
+    ERROR("apache plugin: init_host: `curl_easy_init' failed.");
+    return (-1);
+  }
+
+  curl_easy_setopt(st->curl, CURLOPT_NOSIGNAL, 1L);
+  curl_easy_setopt(st->curl, CURLOPT_WRITEFUNCTION, apache_curl_callback);
+  curl_easy_setopt(st->curl, CURLOPT_WRITEDATA, st);
+
+  /* not set as yet if the user specified string doesn't match apache or
+   * lighttpd, then ignore it. Headers will be parsed to find out the
+   * server type */
+  st->server_type = -1;
+
+  if (st->server != NULL) {
+    if (strcasecmp(st->server, "apache") == 0)
+      st->server_type = APACHE;
+    else if (strcasecmp(st->server, "lighttpd") == 0)
+      st->server_type = LIGHTTPD;
+    else if (strcasecmp(st->server, "ibm_http_server") == 0)
+      st->server_type = APACHE;
+    else
+      WARNING("apache plugin: Unknown `Server' setting: %s", st->server);
+  }
+
+  /* if not found register a header callback to determine the server_type */
+  if (st->server_type == -1) {
+    curl_easy_setopt(st->curl, CURLOPT_HEADERFUNCTION, apache_header_callback);
+    curl_easy_setopt(st->curl, CURLOPT_WRITEHEADER, st);
+  }
+
+  curl_easy_setopt(st->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
+  curl_easy_setopt(st->curl, CURLOPT_ERRORBUFFER, st->apache_curl_error);
+
+  if (st->user != NULL) {
 #ifdef HAVE_CURLOPT_USERNAME
-               curl_easy_setopt (st->curl, CURLOPT_USERNAME, st->user);
-               curl_easy_setopt (st->curl, CURLOPT_PASSWORD,
-                               (st->pass == NULL) ? "" : st->pass);
+    curl_easy_setopt(st->curl, CURLOPT_USERNAME, st->user);
+    curl_easy_setopt(st->curl, CURLOPT_PASSWORD,
+                     (st->pass == NULL) ? "" : st->pass);
 #else
-               static char credentials[1024];
-               int status;
-
-               status = ssnprintf (credentials, sizeof (credentials), "%s:%s",
-                               st->user, (st->pass == NULL) ? "" : st->pass);
-               if ((status < 0) || ((size_t) status >= sizeof (credentials)))
-               {
-                       ERROR ("apache plugin: init_host: Returning an error "
-                                       "because the credentials have been "
-                                       "truncated.");
-                       curl_easy_cleanup (st->curl);
-                       st->curl = NULL;
-                       return (-1);
-               }
-
-               curl_easy_setopt (st->curl, CURLOPT_USERPWD, credentials);
+    static char credentials[1024];
+    int status;
+
+    status = ssnprintf(credentials, sizeof(credentials), "%s:%s", st->user,
+                       (st->pass == NULL) ? "" : st->pass);
+    if ((status < 0) || ((size_t)status >= sizeof(credentials))) {
+      ERROR("apache plugin: init_host: Returning an error "
+            "because the credentials have been "
+            "truncated.");
+      curl_easy_cleanup(st->curl);
+      st->curl = NULL;
+      return (-1);
+    }
+
+    curl_easy_setopt(st->curl, CURLOPT_USERPWD, credentials);
 #endif
-       }
+  }
 
-       curl_easy_setopt (st->curl, CURLOPT_URL, st->url);
-       curl_easy_setopt (st->curl, CURLOPT_FOLLOWLOCATION, 1L);
-       curl_easy_setopt (st->curl, CURLOPT_MAXREDIRS, 50L);
+  curl_easy_setopt(st->curl, CURLOPT_URL, st->url);
+  curl_easy_setopt(st->curl, CURLOPT_FOLLOWLOCATION, 1L);
+  curl_easy_setopt(st->curl, CURLOPT_MAXREDIRS, 50L);
 
-       curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYPEER,
-                       (long) st->verify_peer);
-       curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYHOST,
-                       st->verify_host ? 2L : 0L);
-       if (st->cacert != NULL)
-               curl_easy_setopt (st->curl, CURLOPT_CAINFO, st->cacert);
-       if (st->ssl_ciphers != NULL)
-               curl_easy_setopt (st->curl, CURLOPT_SSL_CIPHER_LIST,st->ssl_ciphers);
+  curl_easy_setopt(st->curl, CURLOPT_SSL_VERIFYPEER, (long)st->verify_peer);
+  curl_easy_setopt(st->curl, CURLOPT_SSL_VERIFYHOST, st->verify_host ? 2L : 0L);
+  if (st->cacert != NULL)
+    curl_easy_setopt(st->curl, CURLOPT_CAINFO, st->cacert);
+  if (st->ssl_ciphers != NULL)
+    curl_easy_setopt(st->curl, CURLOPT_SSL_CIPHER_LIST, st->ssl_ciphers);
 
 #ifdef HAVE_CURLOPT_TIMEOUT_MS
-       if (st->timeout >= 0)
-               curl_easy_setopt (st->curl, CURLOPT_TIMEOUT_MS, (long) st->timeout);
-       else
-               curl_easy_setopt (st->curl, CURLOPT_TIMEOUT_MS, (long) CDTIME_T_TO_MS(plugin_get_interval()));
+  if (st->timeout >= 0)
+    curl_easy_setopt(st->curl, CURLOPT_TIMEOUT_MS, (long)st->timeout);
+  else
+    curl_easy_setopt(st->curl, CURLOPT_TIMEOUT_MS,
+                     (long)CDTIME_T_TO_MS(plugin_get_interval()));
 #endif
 
-       return (0);
+  return (0);
 } /* }}} int init_host */
 
-static void submit_value (const char *type, const char *type_instance,
-               value_t value, apache_t *st)
-{
-       value_list_t vl = VALUE_LIST_INIT;
+static void submit_value(const char *type, const char *type_instance,
+                         value_t value, apache_t *st) {
+  value_list_t vl = VALUE_LIST_INIT;
 
-       vl.values = &value;
-       vl.values_len = 1;
+  vl.values = &value;
+  vl.values_len = 1;
 
-       if (st->host != NULL)
-               sstrncpy (vl.host, st->host, sizeof (vl.host));
+  if (st->host != NULL)
+    sstrncpy(vl.host, st->host, sizeof(vl.host));
 
-       sstrncpy (vl.plugin, "apache", sizeof (vl.plugin));
-       if (st->name != NULL)
-               sstrncpy (vl.plugin_instance, st->name,
-                               sizeof (vl.plugin_instance));
+  sstrncpy(vl.plugin, "apache", sizeof(vl.plugin));
+  if (st->name != NULL)
+    sstrncpy(vl.plugin_instance, st->name, sizeof(vl.plugin_instance));
 
-       sstrncpy (vl.type, type, sizeof (vl.type));
-       if (type_instance != NULL)
-               sstrncpy (vl.type_instance, type_instance,
-                               sizeof (vl.type_instance));
+  sstrncpy(vl.type, type, sizeof(vl.type));
+  if (type_instance != NULL)
+    sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
 
-       plugin_dispatch_values (&vl);
+  plugin_dispatch_values(&vl);
 } /* void submit_value */
 
-static void submit_derive (const char *type, const char *type_instance,
-               derive_t d, apache_t *st)
-{
-       submit_value (type, type_instance, (value_t) { .derive = d }, st);
+static void submit_derive(const char *type, const char *type_instance,
+                          derive_t d, apache_t *st) {
+  submit_value(type, type_instance, (value_t){.derive = d}, st);
 } /* void submit_derive */
 
-static void submit_gauge (const char *type, const char *type_instance,
-               gauge_t g, apache_t *st)
-{
-       submit_value (type, type_instance, (value_t) { .gauge = g }, st);
+static void submit_gauge(const char *type, const char *type_instance, gauge_t g,
+                         apache_t *st) {
+  submit_value(type, type_instance, (value_t){.gauge = g}, st);
 } /* void submit_gauge */
 
-static void submit_scoreboard (char *buf, apache_t *st)
-{
-       /*
-        * Scoreboard Key:
-        * "_" Waiting for Connection, "S" Starting up,
-        * "R" Reading Request for apache and read-POST for lighttpd,
-        * "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
-        * "C" Closing connection, "L" Logging, "G" Gracefully finishing,
-        * "I" Idle cleanup of worker, "." Open slot with no current process
-        * Lighttpd specific legends -
-        * "E" hard error, "." connect, "h" handle-request,
-        * "q" request-start, "Q" request-end, "s" response-start
-        * "S" response-end, "r" read
-        */
-       long long open      = 0LL;
-       long long waiting   = 0LL;
-       long long starting  = 0LL;
-       long long reading   = 0LL;
-       long long sending   = 0LL;
-       long long keepalive = 0LL;
-       long long dnslookup = 0LL;
-       long long closing   = 0LL;
-       long long logging   = 0LL;
-       long long finishing = 0LL;
-       long long idle_cleanup = 0LL;
-
-       /* lighttpd specific */
-       long long hard_error     = 0LL;
-       long long lighttpd_read  = 0LL;
-       long long handle_request = 0LL;
-       long long request_start  = 0LL;
-       long long request_end    = 0LL;
-       long long response_start = 0LL;
-       long long response_end   = 0LL;
-
-       for (int i = 0; buf[i] != '\0'; i++)
-       {
-               if (buf[i] == '.') open++;
-               else if (buf[i] == '_') waiting++;
-               else if (buf[i] == 'S') starting++;
-               else if (buf[i] == 'R') reading++;
-               else if (buf[i] == 'W') sending++;
-               else if (buf[i] == 'K') keepalive++;
-               else if (buf[i] == 'D') dnslookup++;
-               else if (buf[i] == 'C') closing++;
-               else if (buf[i] == 'L') logging++;
-               else if (buf[i] == 'G') finishing++;
-               else if (buf[i] == 'I') idle_cleanup++;
-               else if (buf[i] == 'r') lighttpd_read++;
-               else if (buf[i] == 'h') handle_request++;
-               else if (buf[i] == 'E') hard_error++;
-               else if (buf[i] == 'q') request_start++;
-               else if (buf[i] == 'Q') request_end++;
-               else if (buf[i] == 's') response_start++;
-               else if (buf[i] == 'S') response_end++;
-       }
-
-       if (st->server_type == APACHE)
-       {
-               submit_gauge ("apache_scoreboard", "open"     , open, st);
-               submit_gauge ("apache_scoreboard", "waiting"  , waiting, st);
-               submit_gauge ("apache_scoreboard", "starting" , starting, st);
-               submit_gauge ("apache_scoreboard", "reading"  , reading, st);
-               submit_gauge ("apache_scoreboard", "sending"  , sending, st);
-               submit_gauge ("apache_scoreboard", "keepalive", keepalive, st);
-               submit_gauge ("apache_scoreboard", "dnslookup", dnslookup, st);
-               submit_gauge ("apache_scoreboard", "closing"  , closing, st);
-               submit_gauge ("apache_scoreboard", "logging"  , logging, st);
-               submit_gauge ("apache_scoreboard", "finishing", finishing, st);
-               submit_gauge ("apache_scoreboard", "idle_cleanup", idle_cleanup, st);
-       }
-       else
-       {
-               submit_gauge ("apache_scoreboard", "connect"       , open, st);
-               submit_gauge ("apache_scoreboard", "close"         , closing, st);
-               submit_gauge ("apache_scoreboard", "hard_error"    , hard_error, st);
-               submit_gauge ("apache_scoreboard", "read"          , lighttpd_read, st);
-               submit_gauge ("apache_scoreboard", "read_post"     , reading, st);
-               submit_gauge ("apache_scoreboard", "write"         , sending, st);
-               submit_gauge ("apache_scoreboard", "handle_request", handle_request, st);
-               submit_gauge ("apache_scoreboard", "request_start" , request_start, st);
-               submit_gauge ("apache_scoreboard", "request_end"   , request_end, st);
-               submit_gauge ("apache_scoreboard", "response_start", response_start, st);
-               submit_gauge ("apache_scoreboard", "response_end"  , response_end, st);
-       }
+static void submit_scoreboard(char *buf, apache_t *st) {
+  /*
+   * Scoreboard Key:
+   * "_" Waiting for Connection, "S" Starting up,
+   * "R" Reading Request for apache and read-POST for lighttpd,
+   * "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
+   * "C" Closing connection, "L" Logging, "G" Gracefully finishing,
+   * "I" Idle cleanup of worker, "." Open slot with no current process
+   * Lighttpd specific legends -
+   * "E" hard error, "." connect, "h" handle-request,
+   * "q" request-start, "Q" request-end, "s" response-start
+   * "S" response-end, "r" read
+   */
+  long long open = 0LL;
+  long long waiting = 0LL;
+  long long starting = 0LL;
+  long long reading = 0LL;
+  long long sending = 0LL;
+  long long keepalive = 0LL;
+  long long dnslookup = 0LL;
+  long long closing = 0LL;
+  long long logging = 0LL;
+  long long finishing = 0LL;
+  long long idle_cleanup = 0LL;
+
+  /* lighttpd specific */
+  long long hard_error = 0LL;
+  long long lighttpd_read = 0LL;
+  long long handle_request = 0LL;
+  long long request_start = 0LL;
+  long long request_end = 0LL;
+  long long response_start = 0LL;
+  long long response_end = 0LL;
+
+  for (int i = 0; buf[i] != '\0'; i++) {
+    if (buf[i] == '.')
+      open++;
+    else if (buf[i] == '_')
+      waiting++;
+    else if (buf[i] == 'S')
+      starting++;
+    else if (buf[i] == 'R')
+      reading++;
+    else if (buf[i] == 'W')
+      sending++;
+    else if (buf[i] == 'K')
+      keepalive++;
+    else if (buf[i] == 'D')
+      dnslookup++;
+    else if (buf[i] == 'C')
+      closing++;
+    else if (buf[i] == 'L')
+      logging++;
+    else if (buf[i] == 'G')
+      finishing++;
+    else if (buf[i] == 'I')
+      idle_cleanup++;
+    else if (buf[i] == 'r')
+      lighttpd_read++;
+    else if (buf[i] == 'h')
+      handle_request++;
+    else if (buf[i] == 'E')
+      hard_error++;
+    else if (buf[i] == 'q')
+      request_start++;
+    else if (buf[i] == 'Q')
+      request_end++;
+    else if (buf[i] == 's')
+      response_start++;
+    else if (buf[i] == 'S')
+      response_end++;
+  }
+
+  if (st->server_type == APACHE) {
+    submit_gauge("apache_scoreboard", "open", open, st);
+    submit_gauge("apache_scoreboard", "waiting", waiting, st);
+    submit_gauge("apache_scoreboard", "starting", starting, st);
+    submit_gauge("apache_scoreboard", "reading", reading, st);
+    submit_gauge("apache_scoreboard", "sending", sending, st);
+    submit_gauge("apache_scoreboard", "keepalive", keepalive, st);
+    submit_gauge("apache_scoreboard", "dnslookup", dnslookup, st);
+    submit_gauge("apache_scoreboard", "closing", closing, st);
+    submit_gauge("apache_scoreboard", "logging", logging, st);
+    submit_gauge("apache_scoreboard", "finishing", finishing, st);
+    submit_gauge("apache_scoreboard", "idle_cleanup", idle_cleanup, st);
+  } else {
+    submit_gauge("apache_scoreboard", "connect", open, st);
+    submit_gauge("apache_scoreboard", "close", closing, st);
+    submit_gauge("apache_scoreboard", "hard_error", hard_error, st);
+    submit_gauge("apache_scoreboard", "read", lighttpd_read, st);
+    submit_gauge("apache_scoreboard", "read_post", reading, st);
+    submit_gauge("apache_scoreboard", "write", sending, st);
+    submit_gauge("apache_scoreboard", "handle_request", handle_request, st);
+    submit_gauge("apache_scoreboard", "request_start", request_start, st);
+    submit_gauge("apache_scoreboard", "request_end", request_end, st);
+    submit_gauge("apache_scoreboard", "response_start", response_start, st);
+    submit_gauge("apache_scoreboard", "response_end", response_end, st);
+  }
 }
 
-static int apache_read_host (user_data_t *user_data) /* {{{ */
+static int apache_read_host(user_data_t *user_data) /* {{{ */
 {
-       char *ptr;
-       char *saveptr;
-       char *line;
-
-       char *fields[4];
-       int   fields_num;
-
-       apache_t *st;
-
-       st = user_data->data;
-
-       int status;
-
-       char *content_type;
-       static const char *text_plain = "text/plain";
-
-       assert (st->url != NULL);
-       /* (Assured by `config_add') */
-
-       if (st->curl == NULL)
-       {
-               status = init_host (st);
-               if (status != 0)
-                       return (-1);
-       }
-       assert (st->curl != NULL);
-
-       st->apache_buffer_fill = 0;
-       if (curl_easy_perform (st->curl) != CURLE_OK)
-       {
-               ERROR ("apache: curl_easy_perform failed: %s",
-                               st->apache_curl_error);
-               return (-1);
-       }
-
-       /* fallback - server_type to apache if not set at this time */
-       if (st->server_type == -1)
-       {
-               WARNING ("apache plugin: Unable to determine server software "
-                               "automatically. Will assume Apache.");
-               st->server_type = APACHE;
-       }
-
-       status = curl_easy_getinfo (st->curl, CURLINFO_CONTENT_TYPE, &content_type);
-       if ((status == CURLE_OK) && (content_type != NULL) &&
-           (strncasecmp (content_type, text_plain, strlen (text_plain)) != 0))
-       {
-               WARNING ("apache plugin: `Content-Type' response header is not `%s' "
-                       "(received: `%s'). Expecting unparseable data. Please check `URL' "
-                       "parameter (missing `?auto' suffix ?)",
-                       text_plain, content_type);
-       }
-
-       ptr = st->apache_buffer;
-       saveptr = NULL;
-       while ((line = strtok_r (ptr, "\n\r", &saveptr)) != NULL)
-       {
-               ptr = NULL;
-               fields_num = strsplit (line, fields, STATIC_ARRAY_SIZE (fields));
-
-               if (fields_num == 3)
-               {
-                       if ((strcmp (fields[0], "Total") == 0) && (strcmp (fields[1], "Accesses:") == 0))
-                               submit_derive ("apache_requests", "", atoll (fields[2]), st);
-                       else if ((strcmp (fields[0], "Total") == 0) && (strcmp (fields[1], "kBytes:") == 0))
-                               submit_derive ("apache_bytes", "", 1024LL * atoll (fields[2]), st);
-               }
-               else if (fields_num == 2)
-               {
-                       if (strcmp (fields[0], "Scoreboard:") == 0)
-                               submit_scoreboard (fields[1], st);
-                       else if ((strcmp (fields[0], "BusyServers:") == 0) /* Apache 1.* */
-                                       || (strcmp (fields[0], "BusyWorkers:") == 0) /* Apache 2.* */)
-                               submit_gauge ("apache_connections", NULL, atol (fields[1]), st);
-                       else if ((strcmp (fields[0], "IdleServers:") == 0) /* Apache 1.x */
-                                       || (strcmp (fields[0], "IdleWorkers:") == 0) /* Apache 2.x */)
-                               submit_gauge ("apache_idle_workers", NULL, atol (fields[1]), st);
-               }
-       }
-
-       st->apache_buffer_fill = 0;
-
-       return (0);
+  char *ptr;
+  char *saveptr;
+  char *line;
+
+  char *fields[4];
+  int fields_num;
+
+  apache_t *st;
+
+  st = user_data->data;
+
+  int status;
+
+  char *content_type;
+  static const char *text_plain = "text/plain";
+
+  assert(st->url != NULL);
+  /* (Assured by `config_add') */
+
+  if (st->curl == NULL) {
+    status = init_host(st);
+    if (status != 0)
+      return (-1);
+  }
+  assert(st->curl != NULL);
+
+  st->apache_buffer_fill = 0;
+  if (curl_easy_perform(st->curl) != CURLE_OK) {
+    ERROR("apache: curl_easy_perform failed: %s", st->apache_curl_error);
+    return (-1);
+  }
+
+  /* fallback - server_type to apache if not set at this time */
+  if (st->server_type == -1) {
+    WARNING("apache plugin: Unable to determine server software "
+            "automatically. Will assume Apache.");
+    st->server_type = APACHE;
+  }
+
+  status = curl_easy_getinfo(st->curl, CURLINFO_CONTENT_TYPE, &content_type);
+  if ((status == CURLE_OK) && (content_type != NULL) &&
+      (strncasecmp(content_type, text_plain, strlen(text_plain)) != 0)) {
+    WARNING("apache plugin: `Content-Type' response header is not `%s' "
+            "(received: `%s'). Expecting unparseable data. Please check `URL' "
+            "parameter (missing `?auto' suffix ?)",
+            text_plain, content_type);
+  }
+
+  ptr = st->apache_buffer;
+  saveptr = NULL;
+  while ((line = strtok_r(ptr, "\n\r", &saveptr)) != NULL) {
+    ptr = NULL;
+    fields_num = strsplit(line, fields, STATIC_ARRAY_SIZE(fields));
+
+    if (fields_num == 3) {
+      if ((strcmp(fields[0], "Total") == 0) &&
+          (strcmp(fields[1], "Accesses:") == 0))
+        submit_derive("apache_requests", "", atoll(fields[2]), st);
+      else if ((strcmp(fields[0], "Total") == 0) &&
+               (strcmp(fields[1], "kBytes:") == 0))
+        submit_derive("apache_bytes", "", 1024LL * atoll(fields[2]), st);
+    } else if (fields_num == 2) {
+      if (strcmp(fields[0], "Scoreboard:") == 0)
+        submit_scoreboard(fields[1], st);
+      else if ((strcmp(fields[0], "BusyServers:") == 0) /* Apache 1.* */
+               || (strcmp(fields[0], "BusyWorkers:") == 0) /* Apache 2.* */)
+        submit_gauge("apache_connections", NULL, atol(fields[1]), st);
+      else if ((strcmp(fields[0], "IdleServers:") == 0) /* Apache 1.x */
+               || (strcmp(fields[0], "IdleWorkers:") == 0) /* Apache 2.x */)
+        submit_gauge("apache_idle_workers", NULL, atol(fields[1]), st);
+    }
+  }
+
+  st->apache_buffer_fill = 0;
+
+  return (0);
 } /* }}} int apache_read_host */
 
-static int apache_init (void) /* {{{ */
+static int apache_init(void) /* {{{ */
 {
-       /* Call this while collectd is still single-threaded to avoid
-        * initialization issues in libgcrypt. */
-       curl_global_init (CURL_GLOBAL_SSL);
-       return (0);
+  /* Call this while collectd is still single-threaded to avoid
+   * initialization issues in libgcrypt. */
+  curl_global_init(CURL_GLOBAL_SSL);
+  return (0);
 } /* }}} int apache_init */
 
-void module_register (void)
-{
-       plugin_register_complex_config ("apache", config);
-       plugin_register_init ("apache", apache_init);
+void module_register(void) {
+  plugin_register_complex_config("apache", config);
+  plugin_register_init("apache", apache_init);
 } /* void module_register */
 
 /* vim: set sw=8 noet fdm=marker : */