179 lines
4.4 KiB
Diff
179 lines
4.4 KiB
Diff
--- apps/nc/netcat.c.orig Sat Feb 15 11:04:42 2020
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+++ apps/nc/netcat.c Sat Feb 15 11:24:38 2020
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@@ -93,9 +93,13 @@
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int Dflag; /* sodebug */
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int Iflag; /* TCP receive buffer size */
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int Oflag; /* TCP send buffer size */
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+#ifdef TCP_MD5SIG
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int Sflag; /* TCP MD5 signature option */
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+#endif
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int Tflag = -1; /* IP Type of Service */
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+#ifdef SO_RTABLE
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int rtableid = -1;
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+#endif
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int usetls; /* use TLS */
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const char *Cflag; /* Public cert file */
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@@ -269,12 +273,14 @@
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case 'u':
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uflag = 1;
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break;
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+#ifdef SO_RTABLE
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case 'V':
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rtableid = (int)strtonum(optarg, 0,
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RT_TABLEID_MAX, &errstr);
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if (errstr)
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errx(1, "rtable %s: %s", errstr, optarg);
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break;
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+#endif
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case 'v':
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vflag = 1;
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break;
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@@ -321,9 +327,11 @@
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case 'o':
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oflag = optarg;
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break;
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+#ifdef TCP_MD5SIG
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case 'S':
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Sflag = 1;
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break;
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+#endif
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case 'T':
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errstr = NULL;
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errno = 0;
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@@ -347,9 +355,11 @@
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argc -= optind;
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argv += optind;
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+#ifdef SO_RTABLE
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if (rtableid >= 0)
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if (setrtable(rtableid) == -1)
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err(1, "setrtable");
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+#endif
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/* Cruft to make sure options are clean, and used properly. */
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if (argc == 1 && family == AF_UNIX) {
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@@ -947,7 +957,10 @@
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char *ipaddr)
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{
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struct addrinfo *res, *res0;
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- int s = -1, error, herr, on = 1, save_errno;
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+ int s = -1, error, herr, save_errno;
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+#ifdef SO_BINDANY
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+ int on = 1;
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+#endif
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if ((error = getaddrinfo(host, port, &hints, &res0)))
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errx(1, "getaddrinfo for host \"%s\" port %s: %s", host,
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@@ -962,8 +975,10 @@
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if (sflag || pflag) {
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struct addrinfo ahints, *ares;
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+#ifdef SO_BINDANY
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/* try SO_BINDANY, but don't insist */
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setsockopt(s, SOL_SOCKET, SO_BINDANY, &on, sizeof(on));
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+#endif
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memset(&ahints, 0, sizeof(struct addrinfo));
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ahints.ai_family = res->ai_family;
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ahints.ai_socktype = uflag ? SOCK_DGRAM : SOCK_STREAM;
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@@ -1055,7 +1070,10 @@
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local_listen(const char *host, const char *port, struct addrinfo hints)
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{
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struct addrinfo *res, *res0;
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- int s = -1, ret, x = 1, save_errno;
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+ int s = -1, save_errno;
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+#ifdef SO_REUSEPORT
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+ int ret, x = 1;
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+#endif
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int error;
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/* Allow nodename to be null. */
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@@ -1076,9 +1094,11 @@
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res->ai_protocol)) == -1)
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continue;
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+#ifdef SO_REUSEPORT
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ret = setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof(x));
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if (ret == -1)
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err(1, NULL);
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+#endif
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set_common_sockopts(s, res->ai_family);
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@@ -1548,11 +1568,13 @@
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{
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int x = 1;
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+#ifdef TCP_MD5SIG
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if (Sflag) {
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if (setsockopt(s, IPPROTO_TCP, TCP_MD5SIG,
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&x, sizeof(x)) == -1)
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err(1, NULL);
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}
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+#endif
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if (Dflag) {
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if (setsockopt(s, SOL_SOCKET, SO_DEBUG,
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&x, sizeof(x)) == -1)
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@@ -1563,9 +1585,16 @@
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IP_TOS, &Tflag, sizeof(Tflag)) == -1)
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err(1, "set IP ToS");
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+#ifdef IPV6_TCLASS
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else if (af == AF_INET6 && setsockopt(s, IPPROTO_IPV6,
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IPV6_TCLASS, &Tflag, sizeof(Tflag)) == -1)
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err(1, "set IPv6 traffic class");
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+#else
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+ else if (af == AF_INET6) {
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+ errno = ENOPROTOOPT;
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+ err(1, "set IPv6 traffic class not supported");
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+ }
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+#endif
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}
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if (Iflag) {
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if (setsockopt(s, SOL_SOCKET, SO_RCVBUF,
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@@ -1589,13 +1618,17 @@
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}
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if (minttl != -1) {
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+#ifdef IP_MINTTL
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if (af == AF_INET && setsockopt(s, IPPROTO_IP,
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IP_MINTTL, &minttl, sizeof(minttl)))
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err(1, "set IP min TTL");
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+#endif
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- else if (af == AF_INET6 && setsockopt(s, IPPROTO_IPV6,
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+#ifdef IPV6_MINHOPCOUNT
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+ if (af == AF_INET6 && setsockopt(s, IPPROTO_IPV6,
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IPV6_MINHOPCOUNT, &minttl, sizeof(minttl)))
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err(1, "set IPv6 min hop count");
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+#endif
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}
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}
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@@ -1820,15 +1853,19 @@
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\t-P proxyuser\tUsername for proxy authentication\n\
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\t-p port\t Specify local port for remote connects\n\
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\t-R CAfile CA bundle\n\
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- \t-r Randomize remote ports\n\
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- \t-S Enable the TCP MD5 signature option\n\
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- \t-s sourceaddr Local source address\n\
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+ \t-r Randomize remote ports\n"
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+#ifdef TCP_MD5SIG
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+ "\t-S Enable the TCP MD5 signature option\n"
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+#endif
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+ "\t-s sourceaddr Local source address\n\
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\t-T keyword TOS value or TLS options\n\
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\t-t Answer TELNET negotiation\n\
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\t-U Use UNIX domain socket\n\
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- \t-u UDP mode\n\
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- \t-V rtable Specify alternate routing table\n\
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- \t-v Verbose\n\
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+ \t-u UDP mode\n"
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+#ifdef SO_RTABLE
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+ "\t-V rtable Specify alternate routing table\n"
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+#endif
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+ "\t-v Verbose\n\
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\t-W recvlimit Terminate after receiving a number of packets\n\
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\t-w timeout Timeout for connects and final net reads\n\
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\t-X proto Proxy protocol: \"4\", \"5\" (SOCKS) or \"connect\"\n\
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