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@@ -167,6 +167,7 @@ static void
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test_addr_ip6_helpers(void)
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{
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char buf[TOR_ADDR_BUF_LEN], bug[TOR_ADDR_BUF_LEN];
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+ char rbuf[REVERSE_LOOKUP_NAME_BUF_LEN];
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struct in6_addr a1, a2;
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tor_addr_t t1, t2;
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int r, i;
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@@ -435,6 +436,54 @@ test_addr_ip6_helpers(void)
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AF_INET, 0);
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test_eq(i, -1);
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+ /* === Test tor_addr_to_PTR_name */
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+
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+ /* Stage IPv4 addr */
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+ memset(&sa_storage, 0, sizeof(sa_storage));
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+ sin = (struct sockaddr_in *)&sa_storage;
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+ sin->sin_family = AF_INET;
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+ sin->sin_addr.s_addr = htonl(0x7f010203); /* 127.1.2.3 */
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+ tor_addr_from_sockaddr(&t1, (struct sockaddr *)sin, NULL);
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+
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+ /* Check IPv4 PTR - too short buffer */
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+ test_eq(tor_addr_to_PTR_name(rbuf, 1, &t1), -1);
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+ test_eq(tor_addr_to_PTR_name(rbuf,
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+ strlen("3.2.1.127.in-addr.arpa") - 1,
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+ &t1), -1);
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+
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+ /* Check IPv4 PTR - valid addr */
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+ test_eq(tor_addr_to_PTR_name(rbuf, sizeof(rbuf), &t1),
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+ strlen("3.2.1.127.in-addr.arpa"));
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+ test_streq(rbuf, "3.2.1.127.in-addr.arpa");
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+
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+ /* Invalid addr family */
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+ t1.family = AF_UNSPEC;
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+ test_eq(tor_addr_to_PTR_name(rbuf, sizeof(rbuf), &t1), -1);
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+
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+ /* Stage IPv6 addr */
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+ memset(&sa_storage, 0, sizeof(sa_storage));
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+ sin6 = (struct sockaddr_in6 *)&sa_storage;
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+ sin6->sin6_family = AF_INET6;
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+ sin6->sin6_addr.s6_addr[0] = 0x80; /* 8000::abcd */
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+ sin6->sin6_addr.s6_addr[14] = 0xab;
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+ sin6->sin6_addr.s6_addr[15] = 0xcd;
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+
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+ tor_addr_from_sockaddr(&t1, (struct sockaddr *)sin6, NULL);
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+
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+ {
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+ const char* addr_PTR = "d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0."
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+ "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.ip6.arpa";
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+
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+ /* Check IPv6 PTR - too short buffer */
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+ test_eq(tor_addr_to_PTR_name(rbuf, 0, &t1), -1);
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+ test_eq(tor_addr_to_PTR_name(rbuf, strlen(addr_PTR) - 1, &t1), -1);
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+
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+ /* Check IPv6 PTR - valid addr */
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+ test_eq(tor_addr_to_PTR_name(rbuf, sizeof(rbuf), &t1),
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+ strlen(addr_PTR));
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+ test_streq(rbuf, addr_PTR);
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+ }
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+
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/* test tor_addr_parse_mask_ports */
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test_addr_mask_ports_parse("[::f]/17:47-95", AF_INET6,
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0, 0, 0, 0x0000000f, 17, 47, 95);
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