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New option --unique to prevent scanning same address twice. See #2180

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This commit is contained in:
dmiller
2020-11-15 04:57:44 +00:00
parent 7400723efa
commit 0de714e8d3
6 changed files with 16 additions and 4 deletions
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10
targets.cc
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@@ -423,7 +423,7 @@ bail:
return NULL;
}
static Target *next_target(HostGroupState *hs, const struct addrset *exclude_group,
static Target *next_target(HostGroupState *hs, struct addrset *exclude_group,
struct scan_lists *ports, int pingtype) {
struct sockaddr_storage ss;
size_t sslen;
@@ -473,10 +473,14 @@ tryagain:
if (t == NULL)
goto tryagain;
if (o.unique) {
// Use the exclude list to avoid scanning this IP again if the user requested it.
addrset_add_spec(exclude_group, t->targetipstr(), o.af(), 0);
}
return t;
}
static void refresh_hostbatch(HostGroupState *hs, const struct addrset *exclude_group,
static void refresh_hostbatch(HostGroupState *hs, struct addrset *exclude_group,
struct scan_lists *ports, int pingtype) {
int i;
bool arpping_done = false;
@@ -570,7 +574,7 @@ static void refresh_hostbatch(HostGroupState *hs, const struct addrset *exclude_
nmap_mass_rdns(hs->hostbatch, hs->current_batch_sz);
}
Target *nexthost(HostGroupState *hs, const struct addrset *exclude_group,
Target *nexthost(HostGroupState *hs, struct addrset *exclude_group,
struct scan_lists *ports, int pingtype) {
if (hs->next_batch_no >= hs->current_batch_sz)
refresh_hostbatch(hs, exclude_group, ports, pingtype);