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clean up comments for router_is_general_exit()

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svn:r4917
This commit is contained in:
Roger Dingledine 2005-09-08 05:23:55 +00:00
parent 08348ae66e
commit 0ac3c58480
1 changed files with 6 additions and 4 deletions
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10
src/or/dirserv.c
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@ -941,11 +941,13 @@ dirserv_get_runningrouters(const char **rr, int compress)
"v1 network status list", 1);
}
/** Return true iff <b>ri</b> is "useful as an exit node." */
/** Return true iff <b>ri</b> is "useful as an exit node", meaning
* it allows exit to at least one /8 address space for at least
* one of ports 80, 443, and 6667. */
static int
router_is_general_exit(routerinfo_t *ri)
{
static const int ports[] = { 80, 443, 194 };
static const int ports[] = { 80, 443, 6667 };
int n_allowed = 3;
int i;
for (i = 0; i < 3; ++i) {
@ -954,10 +956,10 @@ router_is_general_exit(routerinfo_t *ri)
if (policy->prt_min > ports[i] || policy->prt_max < ports[i])
continue; /* Doesn't cover our port. */
if ((policy->msk & 0x00fffffful) != 0)
continue; /* Wider than /8. */
continue; /* Narrower than a /8. */
if ((policy->addr & 0xff000000ul) == 0x7f000000ul)
continue; /* 127.x */
/* We have a match that is wider than /24. */
/* We have a match that is at least a /8. */
if (policy->policy_type != ADDR_POLICY_ACCEPT)
--n_allowed;
break;