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UDP --badsum fix

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doug 2007-01-23 03:28:03 +00:00
parent a869a1df8f
commit d26e54847b
1 changed files with 3 additions and 1 deletions
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4
osscan.cc
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@ -171,8 +171,10 @@ for(decoy=0; decoy < o.numdecoys; decoy++) {
udp->uh_sum = realcheck;
#endif
if ( o.badsum )
if ( o.badsum ) {
udp->uh_sum++;
if (udp->uh_sum == 0) udp->uh_sum = 0xffff; // UDP checksum=0 means no checksum
}
/* Now for the ip header */
ip->ip_v = 4;