Fix handling of strict-aliasing rules

[framework/connectivity/connman.git] / plugins / loopback.c

diff --git a/plugins/loopback.c b/plugins/loopback.c
index 7225812..59716c2 100644 (file)
--- a/plugins/loopback.c
+++ b/plugins/loopback.c
@@ -136,6 +136,14 @@ static void remove_watch(void)
 }
 #endif
 
+static void create_hostname(void)
+{
+       const char *name = "localhost";
+
+       if (sethostname(name, strlen(name)) < 0)
+               connman_error("Failed to set hostname to %s", name);
+}
+
 static int setup_hostname(void)
 {
        char name[HOST_NAME_MAX + 1];
@@ -149,6 +157,8 @@ static int setup_hostname(void)
 
        if (strlen(name) > 0 && strcmp(name, "(none)") != 0)
                connman_info("System hostname is %s", name);
+       else
+               create_hostname();
 
        memset(name, 0, sizeof(name));
 
@@ -166,7 +176,7 @@ static int setup_hostname(void)
 static int setup_loopback(void)
 {
        struct ifreq ifr;
-       struct sockaddr_in *addr;
+       struct sockaddr_in addr;
        int sk, err;
 
        sk = socket(PF_INET, SOCK_DGRAM, 0);
@@ -187,9 +197,10 @@ static int setup_loopback(void)
                goto done;
        }
 
-       addr = (struct sockaddr_in *) &ifr.ifr_addr;
-       addr->sin_family = AF_INET;
-       addr->sin_addr.s_addr = inet_addr("127.0.0.1");
+       memset(&addr, 0, sizeof(addr));
+       addr.sin_family = AF_INET;
+       addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+       memcpy(&ifr.ifr_addr, &addr, sizeof(ifr.ifr_addr));
 
        err = ioctl(sk, SIOCSIFADDR, &ifr);
        if (err < 0) {
@@ -198,9 +209,10 @@ static int setup_loopback(void)
                goto done;
        }
 
-       addr = (struct sockaddr_in *) &ifr.ifr_netmask;
-       addr->sin_family = AF_INET;
-       addr->sin_addr.s_addr = inet_addr("255.0.0.0");
+       memset(&addr, 0, sizeof(addr));
+       addr.sin_family = AF_INET;
+       addr.sin_addr.s_addr = inet_addr("255.0.0.0");
+       memcpy(&ifr.ifr_netmask, &addr, sizeof(ifr.ifr_netmask));
 
        err = ioctl(sk, SIOCSIFNETMASK, &ifr);
        if (err < 0) {