[PATCH v5 2/3] qemu-ga: Optimize var declaration and definition

[Dehan Meng]

Variable declarations moved to the beginning of blocks
Followed the coding style of using snake_case for variable names.
Proper initialization of param 'size_t n' to '0' for

Signed-off-by: Dehan Meng <demeng@redhat.com>
---
 qga/commands-linux.c | 43 +++++++++++++++++++------------------------
 1 file changed, 19 insertions(+), 24 deletions(-)

diff --git a/qga/commands-linux.c b/qga/commands-linux.c
index 495de74b31..55c35bfc8f 100644
--- a/qga/commands-linux.c
+++ b/qga/commands-linux.c
@@ -2094,12 +2094,12 @@ GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
     return head;
 }
 
-static char *hexToIPAddress(const void *hexValue, int is_ipv6)
+static char *hex_to_ip_address(const void *hex_value, int is_ipv6)
 {
     if (is_ipv6) {
         char addr[INET6_ADDRSTRLEN];
         struct in6_addr in6;
-        const char *hexStr = (const char *)hexValue;
+        const char *hex_str = (const char *)hex_value;
         int i;
 
         for (i = 0; i < 16; i++) {
@@ -2111,11 +2111,11 @@ static char *hexToIPAddress(const void *hexValue, int 
is_ipv6)
 
         return g_strdup(addr);
     } else {
-        unsigned int hexInt = *(unsigned int *)hexValue;
-        unsigned int byte1 = (hexInt >> 24) & 0xFF;
-        unsigned int byte2 = (hexInt >> 16) & 0xFF;
-        unsigned int byte3 = (hexInt >> 8) & 0xFF;
-        unsigned int byte4 = hexInt & 0xFF;
+        unsigned int hex_int = *(unsigned int *)hex_value;
+        unsigned int byte1 = (hex_int >> 24) & 0xFF;
+        unsigned int byte2 = (hex_int >> 16) & 0xFF;
+        unsigned int byte3 = (hex_int >> 8) & 0xFF;
+        unsigned int byte4 = hex_int & 0xFF;
 
         return g_strdup_printf("%u.%u.%u.%u", byte4, byte3, byte2, byte1);
     }
@@ -2126,11 +2126,12 @@ GuestNetworkRouteList 
*qmp_guest_network_get_route(Error **errp)
     GuestNetworkRouteList *head = NULL, **tail = &head;
     const char *routeFiles[] = {"/proc/net/route", "/proc/net/ipv6_route"};
     FILE *fp;
-    size_t n;
+    size_t n = 0;
     char *line = NULL;
     int firstLine;
     int is_ipv6;
     int i;
+    char iface[IFNAMSIZ];
 
     for (i = 0; i < 2; i++) {
         firstLine = 1;
@@ -2147,18 +2148,14 @@ GuestNetworkRouteList 
*qmp_guest_network_get_route(Error **errp)
                 firstLine = 0;
                 continue;
             }
-            GuestNetworkRoute *route = NULL;
-            GuestNetworkRoute *networkroute;
-            char Iface[IFNAMSIZ];
+            
             if (is_ipv6) {
-                char Destination[33], Source[33], NextHop[33];
-                int DesPrefixlen, SrcPrefixlen, Metric, RefCnt, Use, Flags;
-
-                /* Parse the line and extract the values */
+                char destination[33], source[33], next_hop[33];
+                int des_prefixlen, src_prefixlen, metric, refcnt, use, flags;
                 if (sscanf(line, "%32s %x %32s %x %32s %x %x %x %x %s",
-                           Destination, &DesPrefixlen, Source,
-                           &SrcPrefixlen, NextHop, &Metric, &RefCnt,
-                           &Use, &Flags, Iface) != 10) {
+                           destination, &des_prefixlen, source,
+                           &src_prefixlen, next_hop, &metric, &refcnt,
+                           &use, &flags, iface) != 10) {
                     continue;
                 }
 
@@ -2182,13 +2179,11 @@ GuestNetworkRouteList 
*qmp_guest_network_get_route(Error **errp)
                 route->use = use;
                 route->version = 6;
             } else {
-                unsigned int Destination, Gateway, Mask, Flags;
-                int RefCnt, Use, Metric, MTU, Window, IRTT;
-
-                /* Parse the line and extract the values */
+                unsigned int destination, gateway, mask, flags;
+                int refcnt, use, metric, mtu, window, irtt;
                 if (sscanf(line, "%s %X %X %x %d %d %d %X %d %d %d",
-                           Iface, &Destination, &Gateway, &Flags, &RefCnt,
-                           &Use, &Metric, &Mask, &MTU, &Window, &IRTT) != 11) {
+                           iface, &destination, &gateway, &flags, &refcnt,
+                           &use, &metric, &mask, &mtu, &window, &irtt) != 11) {
                     continue;
                 }
 
-- 
2.40.1