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--- apps/nc/netcat.c.orig Sun Sep 13 08:12:39 2015
+++ apps/nc/netcat.c Sun Sep 13 19:15:13 2015
@@ -98,9 +98,13 @@
int Dflag; /* sodebug */
int Iflag; /* TCP receive buffer size */
int Oflag; /* TCP send buffer size */
+#ifdef TCP_MD5SIG
int Sflag; /* TCP MD5 signature option */
+#endif
int Tflag = -1; /* IP Type of Service */
+#ifdef SO_RTABLE
int rtableid = -1;
+#endif
int usetls; /* use TLS */
char *Cflag; /* Public cert file */
@@ -150,7 +154,7 @@
struct servent *sv;
socklen_t len;
struct sockaddr_storage cliaddr;
- char *proxy;
+ char *proxy = NULL;
const char *errstr, *proxyhost = "", *proxyport = NULL;
struct addrinfo proxyhints;
char unix_dg_tmp_socket_buf[UNIX_DG_TMP_SOCKET_SIZE];
@@ -251,12 +255,14 @@
case 'u':
uflag = 1;
break;
+#ifdef SO_RTABLE
case 'V':
rtableid = (int)strtonum(optarg, 0,
RT_TABLEID_MAX, &errstr);
if (errstr)
errx(1, "rtable %s: %s", errstr, optarg);
break;
+#endif
case 'v':
vflag = 1;
break;
@@ -289,9 +295,11 @@
errx(1, "TCP send window %s: %s",
errstr, optarg);
break;
+#ifdef TCP_MD5SIG
case 'S':
Sflag = 1;
break;
+#endif
case 'T':
errstr = NULL;
errno = 0;
@@ -776,7 +784,10 @@
remote_connect(const char *host, const char *port, struct addrinfo hints)
{
struct addrinfo *res, *res0;
- int s, error, on = 1;
+ int s, error;
+#ifdef SO_BINDANY
+ int on = 1;
+#endif
if ((error = getaddrinfo(host, port, &hints, &res)))
errx(1, "getaddrinfo: %s", gai_strerror(error));
@@ -787,16 +798,20 @@
SOCK_NONBLOCK, res0->ai_protocol)) < 0)
continue;
+#ifdef SO_RTABLE
if (rtableid >= 0 && (setsockopt(s, SOL_SOCKET, SO_RTABLE,
&rtableid, sizeof(rtableid)) == -1))
err(1, "setsockopt SO_RTABLE");
+#endif
/* Bind to a local port or source address if specified. */
if (sflag || pflag) {
struct addrinfo ahints, *ares;
+#ifdef SO_BINDANY
/* try SO_BINDANY, but don't insist */
setsockopt(s, SOL_SOCKET, SO_BINDANY, &on, sizeof(on));
+#endif
memset(&ahints, 0, sizeof(struct addrinfo));
ahints.ai_family = res0->ai_family;
ahints.ai_socktype = uflag ? SOCK_DGRAM : SOCK_STREAM;
@@ -865,7 +880,10 @@
local_listen(char *host, char *port, struct addrinfo hints)
{
struct addrinfo *res, *res0;
- int s, ret, x = 1;
+ int s;
+#ifdef SO_REUSEPORT
+ int ret, x = 1;
+#endif
int error;
/* Allow nodename to be null. */
@@ -887,13 +905,17 @@
res0->ai_protocol)) < 0)
continue;
+#ifdef SO_RTABLE
if (rtableid >= 0 && (setsockopt(s, SOL_SOCKET, SO_RTABLE,
&rtableid, sizeof(rtableid)) == -1))
err(1, "setsockopt SO_RTABLE");
+#endif
+#ifdef SO_REUSEPORT
ret = setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof(x));
if (ret == -1)
err(1, NULL);
+#endif
set_common_sockopts(s, res0->ai_family);
@@ -1337,11 +1359,13 @@
{
int x = 1;
+#ifdef TCP_MD5SIG
if (Sflag) {
if (setsockopt(s, IPPROTO_TCP, TCP_MD5SIG,
&x, sizeof(x)) == -1)
err(1, NULL);
}
+#endif
if (Dflag) {
if (setsockopt(s, SOL_SOCKET, SO_DEBUG,
&x, sizeof(x)) == -1)
@@ -1516,15 +1540,19 @@
\t-P proxyuser\tUsername for proxy authentication\n\
\t-p port\t Specify local port for remote connects\n\
\t-R CAfile CA bundle\n\
- \t-r Randomize remote ports\n\
- \t-S Enable the TCP MD5 signature option\n\
- \t-s source Local source address\n\
+ \t-r Randomize remote ports\n"
+#ifdef TCP_MD5SIG
+ "\t-S Enable the TCP MD5 signature option\n"
+#endif
+ "\t-s source Local source address\n\
\t-T keyword TOS value or TLS options\n\
\t-t Answer TELNET negotiation\n\
\t-U Use UNIX domain socket\n\
- \t-u UDP mode\n\
- \t-V rtable Specify alternate routing table\n\
- \t-v Verbose\n\
+ \t-u UDP mode\n"
+#ifdef SO_RTABLE
+ "\t-V rtable Specify alternate routing table\n"
+#endif
+ "\t-v Verbose\n\
\t-w timeout Timeout for connects and final net reads\n\
\t-X proto Proxy protocol: \"4\", \"5\" (SOCKS) or \"connect\"\n\
\t-x addr[:port]\tSpecify proxy address and port\n\
|
