38 lines
1.1 KiB
Diff
38 lines
1.1 KiB
Diff
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diff -uNr tcpdump-3.6.1.orig/addrtoname.c tcpdump-3.6.1/addrtoname.c
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--- tcpdump-3.6.1.orig/addrtoname.c Sat Jan 13 20:01:00 2001
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+++ tcpdump-3.6.1/addrtoname.c Sat Jan 13 19:59:23 2001
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@@ -581,7 +581,7 @@
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while (table->name)
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table = table->nxt;
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- if (nflag) {
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+ if (nflag > 1) {
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(void)snprintf(buf, sizeof(buf), "%d", port);
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table->name = strdup(buf);
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} else
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@@ -745,7 +745,7 @@
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f_localnet = localnet;
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f_netmask = mask;
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}
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- if (nflag)
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+ if (nflag > 1)
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/*
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* Simplest way to suppress names.
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*/
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diff -uNr tcpdump-3.6.1.orig/tcpdump.1 tcpdump-3.6.1/tcpdump.1
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--- tcpdump-3.6.1.orig/tcpdump.1 Sat Jan 13 19:51:47 2001
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+++ tcpdump-3.6.1/tcpdump.1 Sat Jan 13 19:50:19 2001
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@@ -175,7 +175,11 @@
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``tcpdump\ \ \-l \ \ > dat\ \ &\ \ tail\ \ \-f\ \ dat''.
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.TP
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.B \-n
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-Don't convert addresses (i.e., host addresses, port numbers, etc.) to names.
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+Don't convert host addresses to names. This can be used to avoid
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+DNS lookups.
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+.TP
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+.B \-nn
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+Don't convert protocol and port numbers etc. to names either.
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.TP
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.B \-N
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Don't print domain name qualification of host names. E.g.,
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