//usage: " [-z PAUSE_MSEC] HOST [BYTES]"
//usage:#define traceroute_full_usage "\n\n"
//usage: "Trace the route to HOST\n"
-//usage: "\nOptions:"
//usage: IF_TRACEROUTE6(
//usage: "\n -4,-6 Force IP or IPv6 name resolution"
//usage: )
//usage: " HOST [BYTES]"
//usage:#define traceroute6_full_usage "\n\n"
//usage: "Trace the route to HOST\n"
-//usage: "\nOptions:"
//usage: "\n -d Set SO_DEBUG options to socket"
//usage: "\n -n Print numeric addresses"
//usage: "\n -r Bypass routing tables, send directly to HOST"
#endif
-#define OPT_STRING "FIlnrdvxt:i:m:p:q:s:w:z:f:" \
- IF_FEATURE_TRACEROUTE_SOURCE_ROUTE("g:") \
- "4" IF_TRACEROUTE6("6")
+#define OPT_STRING \
+ "FIlnrdvxt:i:m:p:q:s:w:z:f:" \
+ IF_FEATURE_TRACEROUTE_SOURCE_ROUTE("g:") \
+ "4" IF_TRACEROUTE6("6")
enum {
OPT_DONT_FRAGMNT = (1 << 0), /* F */
OPT_USE_ICMP = (1 << 1) * ENABLE_FEATURE_TRACEROUTE_USE_ICMP, /* I */
return read_len;
}
-/*
- * Checksum routine for Internet Protocol family headers (C Version)
- */
-static uint16_t
-in_cksum(uint16_t *addr, int len)
-{
- int nleft = len;
- uint16_t *w = addr;
- uint16_t answer;
- int sum = 0;
-
- /*
- * Our algorithm is simple, using a 32 bit accumulator (sum),
- * we add sequential 16 bit words to it, and at the end, fold
- * back all the carry bits from the top 16 bits into the lower
- * 16 bits.
- */
- while (nleft > 1) {
- sum += *w++;
- nleft -= 2;
- }
-
- /* mop up an odd byte, if necessary */
- if (nleft == 1)
- sum += *(unsigned char *)w;
-
- /* add back carry outs from top 16 bits to low 16 bits */
- sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
- sum += (sum >> 16); /* add carry */
- answer = ~sum; /* truncate to 16 bits */
- return answer;
-}
-
static void
send_probe(int seq, int ttl)
{
/* Always calculate checksum for icmp packets */
outicmp->icmp_cksum = 0;
- outicmp->icmp_cksum = in_cksum((uint16_t *)outicmp,
+ outicmp->icmp_cksum = inet_cksum((uint16_t *)outicmp,
packlen - (sizeof(*outip) + optlen));
if (outicmp->icmp_cksum == 0)
outicmp->icmp_cksum = 0xffff;
char *waittime_str;
char *pausemsecs_str;
char *first_ttl_str;
+ char *dest_str;
#if ENABLE_FEATURE_TRACEROUTE_SOURCE_ROUTE
llist_t *source_route_list = NULL;
int lsrr = 0;
xsetgid(getgid());
xsetuid(getuid());
- printf("traceroute to %s (%s)", argv[0],
- xmalloc_sockaddr2dotted_noport(&dest_lsa->u.sa));
+ dest_str = xmalloc_sockaddr2dotted_noport(&dest_lsa->u.sa);
+ printf("traceroute to %s (%s)", argv[0], dest_str);
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ free(dest_str);
+ }
+
if (op & OPT_SOURCE)
printf(" from %s", source);
printf(", %d hops max, %d byte packets\n", max_ttl, packlen);
}
}
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ free(to);
+ free(lastaddr);
+ free(from_lsa);
+ }
+
return 0;
}