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--- tcpshow.c.orig Tue Mar 21 17:25:25 2000
+++ tcpshow.c Tue Mar 21 17:28:04 2000
@@ -367,7 +367,7 @@
#endif
-void main(int, char **);
+int main(int, char **);
static boolean noBflag = FALSE;
@@ -1125,7 +1125,9 @@
static char *icmpType (uint1 type) {
char *descr;
+ static char unknowntype[80];
+ snprintf(unknowntype, 80, "%s (%d)", unknown, type);
switch (type) {
case ECHO_REPLY: descr = "echo-reply"; break;
@@ -1143,7 +1145,7 @@
case INFO_REPLY: descr = "information-reply"; break;
case MASK_REQ: descr = "address-mask-request"; break;
case MASK_REPLY: descr = "address-mask-reply"; break;
- default: descr = unknown; break;
+ default: descr = unknowntype; break;
}
return descr;
@@ -1248,7 +1250,7 @@
/* */
/****==========------------------------------------------------==========****/
-void main (int argc, char **argv) {
+int main (int argc, char **argv) {
/* Command line options. */
while (--argc > 0 && **++argv == '-')
@@ -1290,6 +1292,7 @@
for ( ; ; ) if (!setjmp(jmpBuf)) showPkt(pkt);
exit(0);
+ return 0;
}
@@ -1336,7 +1339,7 @@
name = number;
}
/* The crappy manpage doesn't say the port must be in net byte order. */
- elif (service = getservbyport((int)htons(port), proto))
+ elif ( (service = getservbyport((int)htons(port), proto)) )
name = service->s_name;
elif (!wantNumber)
name = unknown;
@@ -1580,13 +1583,14 @@
if (ppFlag) {
(void)sscanf(p, "%s", time);
etherType = ETHER_PROTO_IP; /* tcpdump doesn't supply link type */
- if (!noLinkFlag)
+ if (!noLinkFlag) {
if (terseFlag)
printf("TIME:\t%s%s\n", time, deltaTime(&prevTime, time));
else
printf(
"\tTimestamp:\t\t\t%s%s\n", time, deltaTime(&prevTime, time)
);
+ }
return getPkt();
}
@@ -1598,7 +1602,7 @@
(void)strcpy(eTo, etherAddr(eTo, 0));
(void)strcpy(eToName, etherName(eTo, TRUE));
- if (!noLinkFlag)
+ if (!noLinkFlag) {
if (terseFlag) {
printf("TIME:\t%s%s\n", time, deltaTime(&prevTime, time));
printf(
@@ -1614,6 +1618,7 @@
if (!noEtherNames) printf(" (%s)", etherName(eTo, FALSE));
printf("\n\tEncapsulated Protocol:\t\t%s\n", etherProto(eType, 0));
}
+ }
return getPkt();
@@ -1778,7 +1783,7 @@
static void showPkt (reg char *p) {
char *warnMsg = "<*** No decode support for encapsulated protocol ***>";
-
+ char *warnMsg2 = "<*** No decode support for encap protocol in IPIP packet ***>";
prSep();
printf("Packet %d\n", ++nPktsShown);
@@ -1807,6 +1812,31 @@
p = showIcmp(p);
p = showData(p);
break;
+
+ // IPIP decode support by M. Nowlin (mike@argos.org) 20000321
+ case IPIP:
+ p = showIp(p);
+ switch(proto) {
+ case TCP:
+ p = showTcp(p);
+ p = showData(p);
+ break;
+ case UDP:
+ p = showUdp(p);
+ p = showData(p);
+ break;
+ case ICMP:
+ p = showIcmp(p);
+ p = showData(p);
+ break;
+ default:
+ printf("\t%s\n", warnMsg2);
+ nextPkt();
+ break;
+ }
+
+ break;
+
default:
printf("\t%s\n", warnMsg);
nextPkt(); /* Doesn't return */
@@ -1826,7 +1856,7 @@
}
/* Note that if getPkt() returns here, then the line read isn't the */
/* start of a new packet, i.e. there's spurious data. */
- if (p = getPkt()) {
+ if ( (p = getPkt()) ) {
if (sFlag) printf("\t<*** Spurious data at end: \"%s\" ***>\n", p);
nextPkt();
}
@@ -1996,10 +2026,10 @@
if (terseFlag) {
printf(
- " TCP:\tport %s -> %s seq=%010lu", sPortName, dPortName, seq
+ " TCP:\tport %s -> %s seq=%010lu", sPortName, dPortName, (u_long)seq
);
- if (trackFlag) printf(" (expect=%010lu)", expect);
- printf(" ack=%010lu\n", ack);
+ if (trackFlag) printf(" (expect=%010lu)", (u_long)expect);
+ printf(" ack=%010lu\n", (u_long)ack);
printf(
"\thlen=%d (data=%u) UAPRSF=%s%s%s%s%s%s",
hLen, dataLen,
@@ -2016,9 +2046,9 @@
if (!noPortNames) printf(" (%s)", portName(sPort, "tcp", FALSE));
printf("\n\tDestination Port:\t\t%d", dPort);
if (!noPortNames) printf(" (%s)", portName(dPort, "tcp", FALSE));
- printf("\n\tSequence Number:\t\t%010lu\n", seq);
- if (trackFlag) printf("\tExpect peer ACK:\t\t%010lu\n", expect);
- printf("\tAcknowledgement Number:\t\t%010lu\n", ack);
+ printf("\n\tSequence Number:\t\t%010lu\n", (u_long)seq);
+ if (trackFlag) printf("\tExpect peer ACK:\t\t%010lu\n", (u_long)expect);
+ printf("\tAcknowledgement Number:\t\t%010lu\n", (u_long)ack);
printf("\tHeader Length:\t\t\t%d bytes (data=%u)\n", hLen, dataLen);
printf(
"\tFlags:%s%s%s%s%s%s\n%s%s%s%s%s%s\n",
|
