o Fix crash caused by signedness error

Christopher White · Christopher White · commit 5af54e4069c1 · 2012-11-06T11:29:16.000-08:00
in warning removal.
diff --git a/tuntap/lispd_tuntap/lispd_if.c b/tuntap/lispd_tuntap/lispd_if.c
@@ -751,7 +751,8 @@ void handle_route_change(struct rtmsg *rtm, unsigned int msg_len)
 void process_interface_notification(void)
 {
     char buffer[IF_MSG_SIZE];
-    uint32_t  len, payload_len;
+    int len;
+    uint32_t payload_len;
     struct nlmsghdr *nlh;
     struct ifaddrmsg *ifa;
     struct ifinfomsg *ifi;
@@ -760,7 +761,7 @@ void process_interface_notification(void)
     nlh = (struct nlmsghdr *)buffer;
     while ((len = recv(rtnetlink_fd, nlh, IF_MSG_SIZE, 0)) > 0)
     {
-        for (; (NLMSG_OK(nlh, len)) && (nlh->nlmsg_type != NLMSG_DONE); nlh = NLMSG_NEXT(nlh, len))
+        for (; (NLMSG_OK(nlh, (uint32_t)len)) && (nlh->nlmsg_type != NLMSG_DONE); nlh = NLMSG_NEXT(nlh, len))
         {
             switch (nlh->nlmsg_type) {
             case RTM_NEWADDR:

Original file line number	Diff line number	Diff line change
`@@ -751,7 +751,8 @@ void handle_route_change(struct rtmsg *rtm, unsigned int msg_len)`
`751`	`751`	`void process_interface_notification(void)`
`752`	`752`	`{`
`753`	`753`	`char buffer[IF_MSG_SIZE];`
`754`		`- uint32_t len, payload_len;`
	`754`	`+ int len;`
	`755`	`+ uint32_t payload_len;`
`755`	`756`	`struct nlmsghdr *nlh;`
`756`	`757`	`struct ifaddrmsg *ifa;`
`757`	`758`	`struct ifinfomsg *ifi;`
`@@ -760,7 +761,7 @@ void process_interface_notification(void)`
`760`	`761`	`nlh = (struct nlmsghdr *)buffer;`
`761`	`762`	`while ((len = recv(rtnetlink_fd, nlh, IF_MSG_SIZE, 0)) > 0)`
`762`	`763`	`{`
`763`		`- for (; (NLMSG_OK(nlh, len)) && (nlh->nlmsg_type != NLMSG_DONE); nlh = NLMSG_NEXT(nlh, len))`
	`764`	`+ for (; (NLMSG_OK(nlh, (uint32_t)len)) && (nlh->nlmsg_type != NLMSG_DONE); nlh = NLMSG_NEXT(nlh, len))`
`764`	`765`	`{`
`765`	`766`	`switch (nlh->nlmsg_type) {`
`766`	`767`	`case RTM_NEWADDR:`