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Teach --bogus-nxdomain and --ignore-address to take a subnet argument.

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Simon Kelley committed 2021-03-17 20:31:06 +00:00
1 parent 484bd75ce4
commit 9eaa91bfc3
6 files changed
+57 -63
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src/option.c
+11 -6
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@@ -2487,8 +2487,14 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
case LOPT_IGNORE_ADDR: /* --ignore-address */
{
struct in_addr addr;
int prefix = 32;
unhide_metas(arg);
if (arg && (inet_pton(AF_INET, arg, &addr) > 0))
if (!arg ||
((comma = split_chr(arg, '/')) && !atoi_check(comma, &prefix)) ||
(inet_pton(AF_INET, arg, &addr) != 1))
ret_err(gen_err); /* error */
else
{
struct bogus_addr *baddr = opt_malloc(sizeof(struct bogus_addr));
if (option == 'B')
@@ -2501,12 +2507,11 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
baddr->next = daemon->ignore_addr;
daemon->ignore_addr = baddr;
}
baddr->addr = addr;
baddr->mask.s_addr = htonl(~((1 << (32 - prefix)) - 1));
baddr->addr.s_addr = addr.s_addr & baddr->mask.s_addr;
}
else
ret_err(gen_err); /* error */
break;
}
break;
}
case 'a': /* --listen-address */
case LOPT_AUTHPEER: /* --auth-peer */