commit e9a824aad2771043e6246eab29a37048507057a1
author Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> Wed Dec 07 16:24:51 2011 +0059
committer Amit Pundir <amit.pundir@linaro.org> Thu Jul 25 04:43:50 2013 +0530
tree 6c1e10806affa4488e09578010c0e9ab3c94220d
parent cab867cc0bab0b9eafa00663062f344566401f73

ueventd: Fix aliasing violations

Fix aliasing violation, allowing us to enable the
-fstrict-aliasing optimization

Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>

uevent/uevent.c

diff --git a/uevent/uevent.c b/uevent/uevent.c
index b9e3557..b5e5511 100644
--- a/uevent/uevent.c
+++ b/uevent/uevent.c
@@ -41,14 +41,17 @@
 /* Returns 0 on failure, 1 on success */
 int uevent_init()
 {
-    struct sockaddr_nl addr;
+    union {
+        struct sockaddr_nl nl;
+        struct sockaddr generic;
+    } addr;
     int sz = 64*1024;
     int s;
 
-    memset(&addr, 0, sizeof(addr));
-    addr.nl_family = AF_NETLINK;
-    addr.nl_pid = getpid();
-    addr.nl_groups = 0xffffffff;
+    memset(&addr.nl, 0, sizeof(addr.nl));
+    addr.nl.nl_family = AF_NETLINK;
+    addr.nl.nl_pid = getpid();
+    addr.nl.nl_groups = 0xffffffff;
 
     s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
     if(s < 0)
@@ -56,7 +59,7 @@
 
     setsockopt(s, SOL_SOCKET, SO_RCVBUFFORCE, &sz, sizeof(sz));
 
-    if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+    if(bind(s, &addr.generic, sizeof(addr.nl)) < 0) {
         close(s);
         return 0;
     }