ping: remove assignments of values that are never read

fixes iputils#2

Author: pavlix

clockdiff.c

@@ -133,7 +133,7 @@ measure(struct sockaddr_in * addr)
 	long delta1, delta2;
 	struct timeval tv1, tout;
 	unsigned char packet[PACKET_IN], opacket[64];
-	struct icmphdr *icp = (struct icmphdr *) packet;
+	struct icmphdr *icp;
 	struct icmphdr *oicp = (struct icmphdr *) opacket;
 	struct iphdr *ip = (struct iphdr *) packet;
 
@@ -175,7 +175,6 @@ measure(struct sockaddr_in * addr)
 	((__u32*)(oicp+1))[1] = 0;
 	((__u32*)(oicp+1))[2] = 0;
 	FD_ZERO(&ready);
-	msgcount = 0;
 
 	acked = seqno = seqno0 = 0;
 
@@ -310,7 +309,7 @@ measure_opt(struct sockaddr_in * addr)
 	long delta1, delta2;
 	struct timeval tv1, tout;
 	unsigned char packet[PACKET_IN], opacket[64];
-	struct icmphdr *icp = (struct icmphdr *) packet;
+	struct icmphdr *icp;
 	struct icmphdr *oicp = (struct icmphdr *) opacket;
 	struct iphdr *ip = (struct iphdr *) packet;
 
@@ -352,7 +351,6 @@ measure_opt(struct sockaddr_in * addr)
 	((__u32*)(oicp+1))[2] = 0;
 
 	FD_ZERO(&ready);
-	msgcount = 0;
 
 	acked = seqno = seqno0 = 0;
 

ping.c

@@ -1357,8 +1357,6 @@ void pr_options(unsigned char * cp, int hlen)
 		case IPOPT_LSRR:
 			printf("\n%cSRR: ", *cp==IPOPT_SSRR ? 'S' : 'L');
 			j = *++cp;
-			i = *++cp;
-			i -= 4;
 			cp++;
 			if (j > IPOPT_MINOFF) {
 				for (;;) {
@@ -1391,8 +1389,6 @@ void pr_options(unsigned char * cp, int hlen)
 			    && !memcmp(cp, old_rr, i)
 			    && !(options & F_FLOOD)) {
 				printf("\t(same route)");
-				i = ((i + 3) / 4) * 4;
-				cp += i;
 				break;
 			}
 			old_rrlen = i;

ping6_common.c

@@ -1294,7 +1294,7 @@ static
 void pr_niquery_reply_addr(struct ni_hdr *nih, int len)
 {
 	__u8 *h = (__u8 *)(nih + 1);
-	__u8 *p = h + 4;
+	__u8 *p;
 	__u8 *end = (__u8 *)nih + len;
 	int af;
 	int aflen;

traceroute6.c

@@ -609,7 +609,6 @@ int main(int argc, char *argv[])
 			while ((cc = wait_for_reply(icmp_sock, &from, &to, reset_timer)) != 0) {
 				gettimeofday(&t2, &tz);
 				if ((i = packet_ok(packet, cc, &from, &to, seq, &t1))) {
-					reset_timer = 1;
 					if (memcmp(&from.sin6_addr, &lastaddr, sizeof(from.sin6_addr))) {
 						print(packet, cc, &from);
 						memcpy(&lastaddr,