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#!/usr/bin/env perl
$TCPDUMP = "./tcpdump";
if ($^O eq 'MSWin32') {
$TCPDUMP = "windump";
}
if($ENV{TCPDUMP_BIN}) {
$TCPDUMP = $ENV{TCPDUMP_BIN};
}
use File::Basename;
use POSIX qw( WEXITSTATUS WIFEXITED);
system("mkdir -p tests/NEW tests/DIFF");
if(@ARGV != 4) {
print "Usage: TESTonce name input output options\n";
exit 20;
}
$name=$ARGV[0];
$input=$ARGV[1];
$output=$ARGV[2];
$options=$ARGV[3];
my $r;
my $debug = 0; # change to suit.
$outputbase = basename($output);
my $coredump = false;
my $status = 0;
my $linecount = 0;
my $rawstderrlog = "tests/NEW/${outputbase}.raw.stderr";
my $stderrlog = "tests/NEW/${outputbase}.stderr";
my $diffstat = 0;
my $errdiffstat = 0;
my $cmd;
if ($^O eq 'MSWin32') {
$r = system ".\\${TCPDUMP} -t -n -r $input $options 2>NUL | sed 's/\\r//' | tee tests/NEW/${outputbase} | diff $output - >tests/DIFF/${outputbase}.diff";
# need to do same as below for Cygwin.
}
else {
# we used to do this as a nice pipeline, but the problem is that $r fails to
# to be set properly if the tcpdump core dumps.
$cmd = "$TCPDUMP 2>${rawstderrlog} -t -n -r $input $options >tests/NEW/${outputbase}";
print "CMD: $cmd\n" if $debug;
$r = system $cmd;
if($r == -1) {
# failed to start due to error.
$status = $!;
}
if($r != 0) {
$coredump = false;
$status = 0;
# this means tcpdump failed, which however, might be expected.
open(OUTPUT, ">>"."tests/NEW/${outputbase}") || die "fail to open ${outputbase}\n";
if( $r & 128 ) {
$coredump = $r & 127;
}
if( WIFEXITED($r)) {
$status = WEXITSTATUS($r);
}
if($coredump || $status) {
printf OUTPUT "\nEXIT CODE %08x: dump:%d code: %d\n", $r, $coredump, $status;
} else {
printf OUTPUT "\nEXIT CODE %08x\n", $r;
}
close(OUTPUT);
$r = 0; # clear the error so that the diff will occur.
}
print "RUNNING DIFF after ${r}\n" if $debug;
# always run diff.
$cmd = "cat tests/NEW/${outputbase} | diff $output - >tests/DIFF/${outputbase}.diff";
print "RUNNING: $cmd\n" if $debug;
$r = system $cmd;
if(WIFEXITED($r)) {
$diffstat = WEXITSTATUS($r);
}
#system("/bin/sh");
# process the file, sanitize "reading from" line, and count lines
$linecount = 0;
open(ERRORRAW, "<" . $rawstderrlog);
open(ERROROUT, ">" . $stderrlog);
while(<ERRORRAW>) {
next if /^\s*$/; # blank lines are boring
if(/^(reading from file )(.*)(,.*)$/) {
my $filename = basename($2);
print ERROROUT "${1}${filename}${3}\n";
next;
}
print ERROROUT;
$linecount++;
}
close(ERROROUT);
close(ERRORRAW);
if ( -f "$output.stderr" ) {
$nr = system "cat $stderrlog | diff $output.stderr - >tests/DIFF/$outputbase.stderr.diff";
if($r == 0) {
$r = $nr;
}
$errdiffstat = WEXITSTATUS($nr);
} else {
$errdiffstat = "-"
}
if($r == 0) {
if($linecount == 0 && $status == 0) {
print "UNLINK: ${stderrlog}\n" if $debug;
unlink($stderrlog) unless $debug;
} else {
$errdiffstat = "+";
}
}
print sprintf("END: %08x\n", $r) if $debug;
}
if($r == 0) {
my $stderrlog="";
if($linecount > 0 && $errdiffstat != "-") {
$stderrlog=sprintf("-- %d lines extra in stderr", $linecount);
}
if(!defined($ENV{"SKIPPASSED"})) {
printf " %-35s: passed%s\n", $name, $stderrlog;
}
unlink "tests/DIFF/$outputbase.diff" unless $debug;
exit 0;
}
# must have failed!
printf " %-35s: TEST FAILED(exit core=%d/diffstat=%d,%d/r=%d)", $name, $coredump, $diffstat, $errdiffstat, $r;
open FOUT, '>>tests/failure-outputs.txt';
printf FOUT "\nFailed test: $name\n\n";
close FOUT;
if(-f "tests/DIFF/$outputbase.diff") {
system "cat tests/DIFF/$outputbase.diff >> tests/failure-outputs.txt";
}
if($r == -1) {
print " (failed to execute: $!)\n";
exit 30;
}
# this is not working right, $r == 0x8b00 when there is a core dump.
# clearly, we need some platform specific perl magic to take this apart, so look for "core"
# too.
# In particular, on Solaris 10 SPARC an alignment problem results in SIGILL,
# a core dump and $r set to 0x00008a00 ($? == 138 in the shell).
if($r & 127 || -f "core") {
my $with = ($r & 128) ? 'with' : 'without';
if(-f "core") {
$with = "with";
}
printf " (terminated with signal %u, %s coredump)\n", ($r & 127), $with;
exit ($r & 128) ? 10 : 20;
}
print "\n";
exit $r >> 8;
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