u_char *option = (u_char *) tc + sizeof(*tc);
u_char *optionEnd = option + ((tc->th_off << 2) - sizeof(*tc));
+#define TEST_5618045 0
+#if TEST_5618045
+ if ((ntohs(tc->th_dport) == 8080 || ntohs(tc->th_sport) == 8080) && tc->th_off > 5) {
+ option[0] = 0xF4;
+ option[1] = 0;
+ }
+#endif
+
while (optionEnd > option)
{
- switch (option[0])
- {
- case TCPOPT_EOL:
- option = optionEnd;
+ /* Bounds checking to avoid infinite loops */
+ if (option[0] == TCPOPT_EOL)
+ break;
+
+ if (option[0] == TCPOPT_NOP) {
+ ++option;
+ continue;
+ } else {
+ if (optionEnd - option < 2)
break;
-
- case TCPOPT_NOP:
- ++option;
+ if (option[1] < 2 || option + option[1] >= optionEnd)
break;
+ }
+ switch (option[0])
+ {
case TCPOPT_MAXSEG:
if (option[1] == 4)
{
if (packetAliasMSS < mssVal)
{
int accumulate = mssVal;
+ int accnetorder = 0 ;
+
accumulate -= packetAliasMSS;
*mssPtr = htons(packetAliasMSS);
- ADJUST_CHECKSUM(accumulate, tc->th_sum);
+ accnetorder = htons(accumulate);
+ ADJUST_CHECKSUM(accnetorder, tc->th_sum);
}
option = optionEnd;
addr_save = GetDefaultAliasAddress();
if (packetAliasMode & PKT_ALIAS_UNREGISTERED_ONLY)
{
- u_long addr;
+ in_addr_t addr;
int iclass;
iclass = 0;