X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph/blobdiff_plain/e18c93b30560e68d91bd34f298dc9d8903929b97..af4abf85a0f06568e1bed0cd2e3b36363b0b37ed:/upsgraph.pl

diff --git a/upsgraph.pl b/upsgraph.pl
index 745a44c..bef10a5 100755
--- a/upsgraph.pl
+++ b/upsgraph.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 
-if (@ARGV != 3) {
-	print STDERR "Syntax: ${0} host /path/to/file.rrd /output/directory/\n";
+if ((@ARGV != 3) && (@ARGV != 4)) {
+	print STDERR "Syntax: ${0} host /path/to/file.rrd /output/directory/ [uid]\n";
 	exit(1);
 }
 
@@ -97,6 +97,16 @@ my $vars = {
 
 use Net::SNMP;
 
+if ($> == 0) {
+	if (@ARGV != 4) {
+		print STDERR "Running as root, please provide UID as 4th argument!\n";
+		exit(1);
+	}
+
+	print "Running as root, switching to ".$ARGV[3]."\n";
+	$< = $> = $ARGV[3];
+}
+
 if (! -e "${rrdfile}") {
 	my $cmd = "rrdtool create \"${rrdfile}\" ";
 	foreach my $var (@fields) {
@@ -110,6 +120,12 @@ if (! -e "${rrdfile}") {
 	print `${cmd}`;
 }
 
+my $child = fork();
+
+die "fork failed!" if (!defined($child));
+
+exit 0 if ($child != 0);
+
 while(1) {
 	($session,$error) = Net::SNMP->session(Hostname => $host,
 			Community => $community);
@@ -137,7 +153,6 @@ while(1) {
 		if (!(defined($vars->{$var}->{'value'}))) {
 			$vars->{$var}->{'value'} = 'U';
 		}
-		print $vars->{$var}->{'name'}.": ".$vars->{$var}->{'value'}."\n";
 		$cmd .= ":" . $vars->{$var}->{'value'};
 	}
 	$cmd .= "\"";
@@ -164,6 +179,7 @@ while(1) {
 
 	print HTML "</body></html>\n";
 	print HTML "<br>Generated on: " . localtime(time());
+	print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';
 
 	close(HTML);