Use err(3). Change firewall to firewall_enable in man page according to
/etc/rc.conf.
This commit is contained in:
Philippe Charnier
parent
bde734639c
commit
0fc81af12d
@ -166,11 +166,11 @@ If the
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or
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.Fl interface
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option is used,
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.Nm natd
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.Nm
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will monitor the routing socket for alterations to the
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.Ar interface
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passed. If the interfaces IP number is changed,
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.Nm natd
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.Nm
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will dynamically alter its concept of the alias address.
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.It Fl i | inport Ar inport
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@ -313,13 +313,13 @@ flag.
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.El
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.Pp
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Running
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.Nm natd
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.Nm
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is fairly straight forward. The line
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natd -interface ed0
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should suffice in most cases (substituting the correct interface name). Once
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.Nm natd
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.Nm
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is running, you must ensure that traffic is diverted to natd:
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.Bl -enum
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@ -338,7 +338,7 @@ and assumes that you've updated
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.Pa /etc/services
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with the natd entry as above. If you specify real firewall rules, it's
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best to specify line 2 at the start of the script so that
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.Nm natd
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.Nm
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sees all packets before they are dropped by the firewall. The firewall
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rules will be run again on each packet after translation by
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.Nm natd ,
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@ -347,7 +347,7 @@ minus any divert rules.
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.It
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Enable your firewall by setting
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firewall=YES
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firewall_enable=YES
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in
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.Pa /etc/rc.conf .
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205
sbin/natd/natd.c
205
sbin/natd/natd.c
@ -11,19 +11,9 @@
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <signal.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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@ -35,9 +25,17 @@
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#include <net/route.h>
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#include <arpa/inet.h>
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#include <syslog.h>
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#include <alias.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <netdb.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syslog.h>
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#include <unistd.h>
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#include "natd.h"
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/*
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@ -136,28 +134,18 @@ int main (int argc, char** argv)
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/*
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* Check that valid aliasing address has been given.
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*/
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if (aliasAddr.s_addr == INADDR_NONE && ifName == NULL) {
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if (aliasAddr.s_addr == INADDR_NONE && ifName == NULL)
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errx(1, "aliasing address not given");
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fprintf (stderr, "Aliasing address not given.\n");
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exit (1);
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}
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if (aliasAddr.s_addr != INADDR_NONE && ifName != NULL) {
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fprintf (stderr, "Both alias address and interface name "
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"are not allowed.\n");
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exit (1);
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}
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if (aliasAddr.s_addr != INADDR_NONE && ifName != NULL)
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errx(1,
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"both alias address and interface name are not allowed");
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/*
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* Check that valid port number is known.
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*/
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if (inPort != 0 || outPort != 0)
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if (inPort == 0 || outPort == 0) {
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fprintf (stderr, "Both input and output ports"
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" are required.\n");
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exit (1);
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}
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if (inPort == 0 || outPort == 0)
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errx(1, "both input and output ports are required");
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if (inPort == 0 && outPort == 0 && inOutPort == 0)
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ParseOption ("port", DEFAULT_SERVICE, 0);
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@ -388,7 +376,7 @@ static void ParseArgs (int argc, char** argv)
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opt = argv[arg];
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if (*opt != '-') {
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fprintf (stderr, "Invalid option %s.\n", opt);
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warnx ("invalid option %s", opt);
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Usage ();
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}
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@ -439,7 +427,7 @@ static void DoAliasing (int fd)
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if (origBytes == -1) {
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if (errno != EINTR)
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Warn ("Read from divert socket failed.");
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Warn ("read from divert socket failed");
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return;
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}
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@ -560,7 +548,7 @@ static void FlushPacketBuffer (int fd)
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}
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else {
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sprintf (msgBuf, "Failed to write packet back.");
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sprintf (msgBuf, "failed to write packet back");
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Warn (msgBuf);
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}
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}
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@ -578,13 +566,13 @@ static void HandleRoutingInfo (int fd)
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bytes = read (fd, &ifMsg, sizeof ifMsg);
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if (bytes == -1) {
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Warn ("Read from routing socket failed.");
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Warn ("read from routing socket failed");
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return;
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}
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if (ifMsg.ifm_version != RTM_VERSION) {
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Warn ("Unexpected packet read from routing socket.");
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Warn ("unexpected packet read from routing socket");
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return;
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}
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@ -728,7 +716,7 @@ void Warn (char* msg)
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if (background)
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syslog (LOG_ALERT, "%s (%m)", msg);
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else
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perror (msg);
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warn (msg);
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}
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static void RefreshAddr ()
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@ -962,7 +950,7 @@ static void ParseOption (char* option, char* parms, int cmdLine)
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if (i >= max) {
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fprintf (stderr, "Unknown option %s.\n", option);
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warnx ("unknown option %s", option);
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Usage ();
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}
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@ -982,22 +970,14 @@ static void ParseOption (char* option, char* parms, int cmdLine)
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else
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if (!strcmp (parms, "no"))
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yesNoValue = 0;
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else {
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fprintf (stderr, "%s needs yes/no parameter.\n",
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option);
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exit (1);
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}
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else
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errx(1, "%s needs yes/no parameter", option);
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break;
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case Service:
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if (!parms) {
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fprintf (stderr, "%s needs service name or "
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"port number parameter.\n",
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option);
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exit (1);
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}
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if (!parms)
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errx(1,
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"%s needs service name or port number parameter", option);
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numValue = StrToPort (parms, "divert");
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break;
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@ -1008,40 +988,24 @@ static void ParseOption (char* option, char* parms, int cmdLine)
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else
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end = parms;
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if (end == parms) {
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fprintf (stderr, "%s needs numeric parameter.\n",
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option);
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exit (1);
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}
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if (end == parms)
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errx(1, "%s needs numeric parameter", option);
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break;
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case String:
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strValue = parms;
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if (!strValue) {
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fprintf (stderr, "%s needs parameter.\n",
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option);
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exit (1);
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}
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if (!strValue)
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errx(1, "%s needs parameter", option);
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break;
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case None:
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if (parms) {
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fprintf (stderr, "%s does not take parameters.\n",
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option);
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exit (1);
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}
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if (parms)
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errx(1, "%s does not take parameters", option);
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break;
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case Address:
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if (!parms) {
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fprintf (stderr, "%s needs address/host parameter.\n",
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option);
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exit (1);
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}
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if (!parms)
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errx(1, "%s needs address/host parameter", option);
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StrToAddr (parms, &addrValue);
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break;
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@ -1121,11 +1085,8 @@ void ReadConfigFile (char* fileName)
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while (fgets (buf, sizeof (buf), file)) {
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ptr = strchr (buf, '\n');
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if (!ptr) {
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fprintf (stderr, "config line too link: %s\n", buf);
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exit (1);
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}
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if (!ptr)
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errx(1, "config line too link: %s", buf);
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*ptr = '\0';
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if (buf[0] == '#')
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@ -1205,44 +1166,32 @@ void SetupPermanentLink (char* parms)
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* Extract protocol.
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*/
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protoName = strtok (buf, " \t");
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if (!protoName) {
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fprintf (stderr, "permanent_link: missing protocol.\n");
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exit (1);
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}
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if (!protoName)
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errx(1, "permanent_link: missing protocol");
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proto = StrToProto (protoName);
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/*
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* Extract source address.
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*/
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ptr = strtok (NULL, " \t");
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if (!ptr) {
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fprintf (stderr, "permanent_link: missing src address.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "permanent_link: missing src address");
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srcPort = StrToAddrAndPort (ptr, &srcAddr, protoName);
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/*
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* Extract destination address.
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*/
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ptr = strtok (NULL, " \t");
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if (!ptr) {
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fprintf (stderr, "permanent_link: missing dst address.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "permanent_link: missing dst address");
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dstPort = StrToAddrAndPort (ptr, &dstAddr, protoName);
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/*
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* Export alias port.
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*/
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ptr = strtok (NULL, " \t");
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if (!ptr) {
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fprintf (stderr, "permanent_link: missing alias port.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "permanent_link: missing alias port");
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aliasPort = StrToPort (ptr, protoName);
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@ -1273,33 +1222,24 @@ void SetupPortRedirect (char* parms)
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* Extract protocol.
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*/
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protoName = strtok (buf, " \t");
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if (!protoName) {
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fprintf (stderr, "redirect_port: missing protocol.\n");
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exit (1);
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}
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if (!protoName)
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errx(1, "redirect_port: missing protocol");
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proto = StrToProto (protoName);
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/*
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* Extract local address.
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*/
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ptr = strtok (NULL, " \t");
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if (!ptr) {
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fprintf (stderr, "redirect_port: missing local address.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "redirect_port: missing local address");
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localPort = StrToAddrAndPort (ptr, &localAddr, protoName);
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/*
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* Extract public port and optinally address.
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*/
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ptr = strtok (NULL, " \t");
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if (!ptr) {
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fprintf (stderr, "redirect_port: missing public port.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "redirect_port: missing public port");
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separator = strchr (ptr, ':');
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if (separator)
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@ -1355,22 +1295,16 @@ void SetupAddressRedirect (char* parms)
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* Extract local address.
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*/
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ptr = strtok (buf, " \t");
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if (!ptr) {
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fprintf (stderr, "redirect_address: missing local address.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "redirect_address: missing local address");
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StrToAddr (ptr, &localAddr);
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/*
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* Extract public address.
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*/
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ptr = strtok (NULL, " \t");
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if (!ptr) {
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fprintf (stderr, "redirect_address: missing public address.\n");
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exit (1);
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}
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if (!ptr)
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errx(1, "redirect_address: missing public address");
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StrToAddr (ptr, &publicAddr);
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PacketAliasRedirectAddr (localAddr, publicAddr);
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@ -1384,11 +1318,8 @@ void StrToAddr (char* str, struct in_addr* addr)
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return;
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hp = gethostbyname (str);
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if (!hp) {
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|
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fprintf (stderr, "Unknown host %s.\n", str);
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exit (1);
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}
|
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if (!hp)
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errx(1, "unknown host %s", str);
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|
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memcpy (addr, hp->h_addr, sizeof (struct in_addr));
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}
|
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@ -1404,12 +1335,8 @@ int StrToPort (char* str, char* proto)
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return htons (port);
|
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|
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sp = getservbyname (str, proto);
|
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if (!sp) {
|
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|
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fprintf (stderr, "Unknown service %s/%s.\n",
|
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str, proto);
|
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exit (1);
|
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}
|
||||
if (!sp)
|
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errx(1, "unknown service %s/%s", str, proto);
|
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|
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return sp->s_port;
|
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}
|
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@ -1422,8 +1349,7 @@ int StrToProto (char* str)
|
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if (!strcmp (str, "udp"))
|
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return IPPROTO_UDP;
|
||||
|
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fprintf (stderr, "Unknown protocol %s. Expected tcp or udp.\n", str);
|
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exit (1);
|
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errx(1, "unknown protocol %s. Expected tcp or udp", str);
|
||||
}
|
||||
|
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int StrToAddrAndPort (char* str, struct in_addr* addr, char* proto)
|
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@ -1431,11 +1357,8 @@ int StrToAddrAndPort (char* str, struct in_addr* addr, char* proto)
|
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char* ptr;
|
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|
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ptr = strchr (str, ':');
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "%s is missing port number.\n", str);
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "%s is missing port number", str);
|
||||
|
||||
*ptr = '\0';
|
||||
++ptr;
|
||||
|
||||
@ -166,11 +166,11 @@ If the
|
||||
or
|
||||
.Fl interface
|
||||
option is used,
|
||||
.Nm natd
|
||||
.Nm
|
||||
will monitor the routing socket for alterations to the
|
||||
.Ar interface
|
||||
passed. If the interfaces IP number is changed,
|
||||
.Nm natd
|
||||
.Nm
|
||||
will dynamically alter its concept of the alias address.
|
||||
|
||||
.It Fl i | inport Ar inport
|
||||
@ -313,13 +313,13 @@ flag.
|
||||
.El
|
||||
.Pp
|
||||
Running
|
||||
.Nm natd
|
||||
.Nm
|
||||
is fairly straight forward. The line
|
||||
|
||||
natd -interface ed0
|
||||
|
||||
should suffice in most cases (substituting the correct interface name). Once
|
||||
.Nm natd
|
||||
.Nm
|
||||
is running, you must ensure that traffic is diverted to natd:
|
||||
|
||||
.Bl -enum
|
||||
@ -338,7 +338,7 @@ and assumes that you've updated
|
||||
.Pa /etc/services
|
||||
with the natd entry as above. If you specify real firewall rules, it's
|
||||
best to specify line 2 at the start of the script so that
|
||||
.Nm natd
|
||||
.Nm
|
||||
sees all packets before they are dropped by the firewall. The firewall
|
||||
rules will be run again on each packet after translation by
|
||||
.Nm natd ,
|
||||
@ -347,7 +347,7 @@ minus any divert rules.
|
||||
.It
|
||||
Enable your firewall by setting
|
||||
|
||||
firewall=YES
|
||||
firewall_enable=YES
|
||||
|
||||
in
|
||||
.Pa /etc/rc.conf .
|
||||
|
||||
@ -11,19 +11,9 @@
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/time.h>
|
||||
#include <errno.h>
|
||||
#include <signal.h>
|
||||
|
||||
#include <netdb.h>
|
||||
|
||||
#include <netinet/in.h>
|
||||
#include <netinet/in_systm.h>
|
||||
@ -35,9 +25,17 @@
|
||||
#include <net/route.h>
|
||||
#include <arpa/inet.h>
|
||||
|
||||
#include <syslog.h>
|
||||
#include <alias.h>
|
||||
|
||||
#include <ctype.h>
|
||||
#include <err.h>
|
||||
#include <errno.h>
|
||||
#include <netdb.h>
|
||||
#include <signal.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <syslog.h>
|
||||
#include <unistd.h>
|
||||
#include "natd.h"
|
||||
|
||||
/*
|
||||
@ -136,28 +134,18 @@ int main (int argc, char** argv)
|
||||
/*
|
||||
* Check that valid aliasing address has been given.
|
||||
*/
|
||||
if (aliasAddr.s_addr == INADDR_NONE && ifName == NULL) {
|
||||
if (aliasAddr.s_addr == INADDR_NONE && ifName == NULL)
|
||||
errx(1, "aliasing address not given");
|
||||
|
||||
fprintf (stderr, "Aliasing address not given.\n");
|
||||
exit (1);
|
||||
}
|
||||
|
||||
if (aliasAddr.s_addr != INADDR_NONE && ifName != NULL) {
|
||||
|
||||
fprintf (stderr, "Both alias address and interface name "
|
||||
"are not allowed.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (aliasAddr.s_addr != INADDR_NONE && ifName != NULL)
|
||||
errx(1,
|
||||
"both alias address and interface name are not allowed");
|
||||
/*
|
||||
* Check that valid port number is known.
|
||||
*/
|
||||
if (inPort != 0 || outPort != 0)
|
||||
if (inPort == 0 || outPort == 0) {
|
||||
|
||||
fprintf (stderr, "Both input and output ports"
|
||||
" are required.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (inPort == 0 || outPort == 0)
|
||||
errx(1, "both input and output ports are required");
|
||||
|
||||
if (inPort == 0 && outPort == 0 && inOutPort == 0)
|
||||
ParseOption ("port", DEFAULT_SERVICE, 0);
|
||||
@ -388,7 +376,7 @@ static void ParseArgs (int argc, char** argv)
|
||||
opt = argv[arg];
|
||||
if (*opt != '-') {
|
||||
|
||||
fprintf (stderr, "Invalid option %s.\n", opt);
|
||||
warnx ("invalid option %s", opt);
|
||||
Usage ();
|
||||
}
|
||||
|
||||
@ -439,7 +427,7 @@ static void DoAliasing (int fd)
|
||||
if (origBytes == -1) {
|
||||
|
||||
if (errno != EINTR)
|
||||
Warn ("Read from divert socket failed.");
|
||||
Warn ("read from divert socket failed");
|
||||
|
||||
return;
|
||||
}
|
||||
@ -560,7 +548,7 @@ static void FlushPacketBuffer (int fd)
|
||||
}
|
||||
else {
|
||||
|
||||
sprintf (msgBuf, "Failed to write packet back.");
|
||||
sprintf (msgBuf, "failed to write packet back");
|
||||
Warn (msgBuf);
|
||||
}
|
||||
}
|
||||
@ -578,13 +566,13 @@ static void HandleRoutingInfo (int fd)
|
||||
bytes = read (fd, &ifMsg, sizeof ifMsg);
|
||||
if (bytes == -1) {
|
||||
|
||||
Warn ("Read from routing socket failed.");
|
||||
Warn ("read from routing socket failed");
|
||||
return;
|
||||
}
|
||||
|
||||
if (ifMsg.ifm_version != RTM_VERSION) {
|
||||
|
||||
Warn ("Unexpected packet read from routing socket.");
|
||||
Warn ("unexpected packet read from routing socket");
|
||||
return;
|
||||
}
|
||||
|
||||
@ -728,7 +716,7 @@ void Warn (char* msg)
|
||||
if (background)
|
||||
syslog (LOG_ALERT, "%s (%m)", msg);
|
||||
else
|
||||
perror (msg);
|
||||
warn (msg);
|
||||
}
|
||||
|
||||
static void RefreshAddr ()
|
||||
@ -962,7 +950,7 @@ static void ParseOption (char* option, char* parms, int cmdLine)
|
||||
|
||||
if (i >= max) {
|
||||
|
||||
fprintf (stderr, "Unknown option %s.\n", option);
|
||||
warnx ("unknown option %s", option);
|
||||
Usage ();
|
||||
}
|
||||
|
||||
@ -982,22 +970,14 @@ static void ParseOption (char* option, char* parms, int cmdLine)
|
||||
else
|
||||
if (!strcmp (parms, "no"))
|
||||
yesNoValue = 0;
|
||||
else {
|
||||
|
||||
fprintf (stderr, "%s needs yes/no parameter.\n",
|
||||
option);
|
||||
exit (1);
|
||||
}
|
||||
else
|
||||
errx(1, "%s needs yes/no parameter", option);
|
||||
break;
|
||||
|
||||
case Service:
|
||||
if (!parms) {
|
||||
|
||||
fprintf (stderr, "%s needs service name or "
|
||||
"port number parameter.\n",
|
||||
option);
|
||||
exit (1);
|
||||
}
|
||||
if (!parms)
|
||||
errx(1,
|
||||
"%s needs service name or port number parameter", option);
|
||||
|
||||
numValue = StrToPort (parms, "divert");
|
||||
break;
|
||||
@ -1008,40 +988,24 @@ static void ParseOption (char* option, char* parms, int cmdLine)
|
||||
else
|
||||
end = parms;
|
||||
|
||||
if (end == parms) {
|
||||
|
||||
fprintf (stderr, "%s needs numeric parameter.\n",
|
||||
option);
|
||||
exit (1);
|
||||
}
|
||||
if (end == parms)
|
||||
errx(1, "%s needs numeric parameter", option);
|
||||
break;
|
||||
|
||||
case String:
|
||||
strValue = parms;
|
||||
if (!strValue) {
|
||||
|
||||
fprintf (stderr, "%s needs parameter.\n",
|
||||
option);
|
||||
exit (1);
|
||||
}
|
||||
if (!strValue)
|
||||
errx(1, "%s needs parameter", option);
|
||||
break;
|
||||
|
||||
case None:
|
||||
if (parms) {
|
||||
|
||||
fprintf (stderr, "%s does not take parameters.\n",
|
||||
option);
|
||||
exit (1);
|
||||
}
|
||||
if (parms)
|
||||
errx(1, "%s does not take parameters", option);
|
||||
break;
|
||||
|
||||
case Address:
|
||||
if (!parms) {
|
||||
|
||||
fprintf (stderr, "%s needs address/host parameter.\n",
|
||||
option);
|
||||
exit (1);
|
||||
}
|
||||
if (!parms)
|
||||
errx(1, "%s needs address/host parameter", option);
|
||||
|
||||
StrToAddr (parms, &addrValue);
|
||||
break;
|
||||
@ -1121,11 +1085,8 @@ void ReadConfigFile (char* fileName)
|
||||
while (fgets (buf, sizeof (buf), file)) {
|
||||
|
||||
ptr = strchr (buf, '\n');
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "config line too link: %s\n", buf);
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "config line too link: %s", buf);
|
||||
|
||||
*ptr = '\0';
|
||||
if (buf[0] == '#')
|
||||
@ -1205,44 +1166,32 @@ void SetupPermanentLink (char* parms)
|
||||
* Extract protocol.
|
||||
*/
|
||||
protoName = strtok (buf, " \t");
|
||||
if (!protoName) {
|
||||
|
||||
fprintf (stderr, "permanent_link: missing protocol.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!protoName)
|
||||
errx(1, "permanent_link: missing protocol");
|
||||
|
||||
proto = StrToProto (protoName);
|
||||
/*
|
||||
* Extract source address.
|
||||
*/
|
||||
ptr = strtok (NULL, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "permanent_link: missing src address.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "permanent_link: missing src address");
|
||||
|
||||
srcPort = StrToAddrAndPort (ptr, &srcAddr, protoName);
|
||||
/*
|
||||
* Extract destination address.
|
||||
*/
|
||||
ptr = strtok (NULL, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "permanent_link: missing dst address.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "permanent_link: missing dst address");
|
||||
|
||||
dstPort = StrToAddrAndPort (ptr, &dstAddr, protoName);
|
||||
/*
|
||||
* Export alias port.
|
||||
*/
|
||||
ptr = strtok (NULL, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "permanent_link: missing alias port.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "permanent_link: missing alias port");
|
||||
|
||||
aliasPort = StrToPort (ptr, protoName);
|
||||
|
||||
@ -1273,33 +1222,24 @@ void SetupPortRedirect (char* parms)
|
||||
* Extract protocol.
|
||||
*/
|
||||
protoName = strtok (buf, " \t");
|
||||
if (!protoName) {
|
||||
|
||||
fprintf (stderr, "redirect_port: missing protocol.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!protoName)
|
||||
errx(1, "redirect_port: missing protocol");
|
||||
|
||||
proto = StrToProto (protoName);
|
||||
/*
|
||||
* Extract local address.
|
||||
*/
|
||||
ptr = strtok (NULL, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "redirect_port: missing local address.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "redirect_port: missing local address");
|
||||
|
||||
localPort = StrToAddrAndPort (ptr, &localAddr, protoName);
|
||||
/*
|
||||
* Extract public port and optinally address.
|
||||
*/
|
||||
ptr = strtok (NULL, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "redirect_port: missing public port.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "redirect_port: missing public port");
|
||||
|
||||
separator = strchr (ptr, ':');
|
||||
if (separator)
|
||||
@ -1355,22 +1295,16 @@ void SetupAddressRedirect (char* parms)
|
||||
* Extract local address.
|
||||
*/
|
||||
ptr = strtok (buf, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "redirect_address: missing local address.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "redirect_address: missing local address");
|
||||
|
||||
StrToAddr (ptr, &localAddr);
|
||||
/*
|
||||
* Extract public address.
|
||||
*/
|
||||
ptr = strtok (NULL, " \t");
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "redirect_address: missing public address.\n");
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "redirect_address: missing public address");
|
||||
|
||||
StrToAddr (ptr, &publicAddr);
|
||||
PacketAliasRedirectAddr (localAddr, publicAddr);
|
||||
@ -1384,11 +1318,8 @@ void StrToAddr (char* str, struct in_addr* addr)
|
||||
return;
|
||||
|
||||
hp = gethostbyname (str);
|
||||
if (!hp) {
|
||||
|
||||
fprintf (stderr, "Unknown host %s.\n", str);
|
||||
exit (1);
|
||||
}
|
||||
if (!hp)
|
||||
errx(1, "unknown host %s", str);
|
||||
|
||||
memcpy (addr, hp->h_addr, sizeof (struct in_addr));
|
||||
}
|
||||
@ -1404,12 +1335,8 @@ int StrToPort (char* str, char* proto)
|
||||
return htons (port);
|
||||
|
||||
sp = getservbyname (str, proto);
|
||||
if (!sp) {
|
||||
|
||||
fprintf (stderr, "Unknown service %s/%s.\n",
|
||||
str, proto);
|
||||
exit (1);
|
||||
}
|
||||
if (!sp)
|
||||
errx(1, "unknown service %s/%s", str, proto);
|
||||
|
||||
return sp->s_port;
|
||||
}
|
||||
@ -1422,8 +1349,7 @@ int StrToProto (char* str)
|
||||
if (!strcmp (str, "udp"))
|
||||
return IPPROTO_UDP;
|
||||
|
||||
fprintf (stderr, "Unknown protocol %s. Expected tcp or udp.\n", str);
|
||||
exit (1);
|
||||
errx(1, "unknown protocol %s. Expected tcp or udp", str);
|
||||
}
|
||||
|
||||
int StrToAddrAndPort (char* str, struct in_addr* addr, char* proto)
|
||||
@ -1431,11 +1357,8 @@ int StrToAddrAndPort (char* str, struct in_addr* addr, char* proto)
|
||||
char* ptr;
|
||||
|
||||
ptr = strchr (str, ':');
|
||||
if (!ptr) {
|
||||
|
||||
fprintf (stderr, "%s is missing port number.\n", str);
|
||||
exit (1);
|
||||
}
|
||||
if (!ptr)
|
||||
errx(1, "%s is missing port number", str);
|
||||
|
||||
*ptr = '\0';
|
||||
++ptr;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user