X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fmodbus.c;h=82213d2c6b62ed21c11e035ad7f79a77c935b6e3;hb=4d370741101aeb037ae52f3529a4a0869e0dc08a;hp=2f685e6e96c6733647f42875cd3bd47d55c85170;hpb=4103105fb43cd72294f165b2541540b3a8a99532;p=collectd.git

diff --git a/src/modbus.c b/src/modbus.c
index 2f685e6e..82213d2c 100644
--- a/src/modbus.c
+++ b/src/modbus.c
@@ -24,7 +24,6 @@
 
 #include "common.h"
 #include "plugin.h"
-#include "configfile.h"
 
 #include <netdb.h>
 
@@ -162,12 +161,10 @@ static mb_data_t *data_definitions = NULL;
 static mb_data_t *data_get_by_name (mb_data_t *src, /* {{{ */
     const char *name)
 {
-  mb_data_t *ptr;
-
   if (name == NULL)
     return (NULL);
 
-  for (ptr = src; ptr != NULL; ptr = ptr->next)
+  for (mb_data_t *ptr = src; ptr != NULL; ptr = ptr->next)
     if (strcasecmp (ptr->name, name) == 0)
       return (ptr);
 
@@ -473,11 +470,11 @@ static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
   }
   else if (host->conntype == MBCONN_TCP)
   {
-    struct sockaddr sockaddr;
-    socklen_t saddrlen = sizeof (sockaddr);
-
+    /* getpeername() is used only to determine if the socket is connected, not
+     * because we're really interested in the peer's IP address. */
     status = getpeername (modbus_get_socket (host->connection),
-        &sockaddr, &saddrlen);
+        (struct sockaddr *) &(struct sockaddr_storage) { 0 },
+        &(socklen_t) { sizeof (struct sockaddr_storage) });
     if (status != 0)
       status = errno;
   }
@@ -622,7 +619,6 @@ static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
 
 static int mb_read_slave (mb_host_t *host, mb_slave_t *slave) /* {{{ */
 {
-  mb_data_t *data;
   int success;
   int status;
 
@@ -630,7 +626,7 @@ static int mb_read_slave (mb_host_t *host, mb_slave_t *slave) /* {{{ */
     return (EINVAL);
 
   success = 0;
-  for (data = slave->collect; data != NULL; data = data->next)
+  for (mb_data_t *data = slave->collect; data != NULL; data = data->next)
   {
     status = mb_read_data (host, slave, data);
     if (status == 0)
@@ -646,7 +642,6 @@ static int mb_read_slave (mb_host_t *host, mb_slave_t *slave) /* {{{ */
 static int mb_read (user_data_t *user_data) /* {{{ */
 {
   mb_host_t *host;
-  size_t i;
   int success;
   int status;
 
@@ -656,7 +651,7 @@ static int mb_read (user_data_t *user_data) /* {{{ */
   host = user_data->data;
 
   success = 0;
-  for (i = 0; i < host->slaves_num; i++)
+  for (size_t i = 0; i < host->slaves_num; i++)
   {
     status = mb_read_slave (host, host->slaves + i);
     if (status == 0)
@@ -695,12 +690,10 @@ static void data_free_all (mb_data_t *data) /* {{{ */
 
 static void slaves_free_all (mb_slave_t *slaves, size_t slaves_num) /* {{{ */
 {
-  size_t i;
-
   if (slaves == NULL)
     return;
 
-  for (i = 0; i < slaves_num; i++)
+  for (size_t i = 0; i < slaves_num; i++)
     data_free_all (slaves[i].collect);
   sfree (slaves);
 } /* }}} void slaves_free_all */
@@ -722,7 +715,6 @@ static int mb_config_add_data (oconfig_item_t *ci) /* {{{ */
 {
   mb_data_t data = { 0 };
   int status;
-  int i;
 
   data.name = NULL;
   data.register_type = REG_TYPE_UINT16;
@@ -732,7 +724,7 @@ static int mb_config_add_data (oconfig_item_t *ci) /* {{{ */
   if (status != 0)
     return (status);
 
-  for (i = 0; i < ci->children_num; i++)
+  for (int i = 0; i < ci->children_num; i++)
   {
     oconfig_item_t *child = ci->children + i;
 
@@ -818,7 +810,6 @@ static int mb_config_set_host_address (mb_host_t *host, /* {{{ */
     const char *address)
 {
   struct addrinfo *ai_list;
-  struct addrinfo *ai_ptr;
   int status;
 
   if ((host == NULL) || (address == NULL))
@@ -842,7 +833,7 @@ static int mb_config_set_host_address (mb_host_t *host, /* {{{ */
     return (status);
   }
 
-  for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
+  for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
   {
     status = getnameinfo (ai_ptr->ai_addr, ai_ptr->ai_addrlen,
         host->node, sizeof (host->node),
@@ -869,7 +860,6 @@ static int mb_config_add_slave (mb_host_t *host, oconfig_item_t *ci) /* {{{ */
 {
   mb_slave_t *slave;
   int status;
-  int i;
 
   if ((host == NULL) || (ci == NULL))
     return (EINVAL);
@@ -886,7 +876,7 @@ static int mb_config_add_slave (mb_host_t *host, oconfig_item_t *ci) /* {{{ */
   if (status != 0)
     return (status);
 
-  for (i = 0; i < ci->children_num; i++)
+  for (int i = 0; i < ci->children_num; i++)
   {
     oconfig_item_t *child = ci->children + i;
 
@@ -929,7 +919,6 @@ static int mb_config_add_host (oconfig_item_t *ci) /* {{{ */
 {
   mb_host_t *host;
   int status;
-  int i;
 
   host = calloc (1, sizeof (*host));
   if (host == NULL)
@@ -948,7 +937,7 @@ static int mb_config_add_host (oconfig_item_t *ci) /* {{{ */
     return (EINVAL);
   }
 
-  for (i = 0; i < ci->children_num; i++)
+  for (int i = 0; i < ci->children_num; i++)
   {
     oconfig_item_t *child = ci->children + i;
     status = 0;
@@ -1037,12 +1026,10 @@ static int mb_config_add_host (oconfig_item_t *ci) /* {{{ */
 
 static int mb_config (oconfig_item_t *ci) /* {{{ */
 {
-  int i;
-
   if (ci == NULL)
     return (EINVAL);
 
-  for (i = 0; i < ci->children_num; i++)
+  for (int i = 0; i < ci->children_num; i++)
   {
     oconfig_item_t *child = ci->children + i;