X-Git-Url: http://git.rot13.org/?p=BackupPC.git;a=blobdiff_plain;f=bin%2FBackupPC_archiveHost;h=e66c241f80d10651e73de77bdddefce4b3cb4fc3;hp=4bad6c68d9a932bbdb2eaf20cbcaf7578853a5d4;hb=488bb662f6d144d42376b3d14e9b1e438e00e6f8;hpb=e951f787a66c5bd9e9955c3f657a5b44289c0fe1

diff --git a/bin/BackupPC_archiveHost b/bin/BackupPC_archiveHost
index 4bad6c6..e66c241 100755
--- a/bin/BackupPC_archiveHost
+++ b/bin/BackupPC_archiveHost
@@ -1,4 +1,4 @@
-#!/bin/perl
+#!/usr/bin/perl
 #=============================================================
 #
 # BackupPC_archiveHost: Archive files for a single host
@@ -20,7 +20,7 @@
 #   Josh Marshall
 #
 # COPYRIGHT
-#   Copyright (C) 2001-2004  Craig Barratt
+#   Copyright (C) 2001-2009  Craig Barratt
 #
 #   This program is free software; you can redistribute it and/or modify
 #   it under the terms of the GNU General Public License as published by
@@ -38,7 +38,7 @@
 #
 #========================================================================
 #
-# Version 2.1.0, released 20 Jun 2004.
+# Version 3.2.0, released 31 Jul 2010.
 #
 # See http://backuppc.sourceforge.net.
 #
@@ -77,6 +77,10 @@ die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );
 # Make sure the specified programs are executable
 #
 foreach my $prog ( ($tarCreate, $compPath, $splitPath, $parPath) ) {
+    if ( $prog =~ /[][;&()<>{}|^\n\r\t *\$\\'"`?]/ ) {
+        print("Error: executable path $prog contains suspicious characters\n");
+        exit(1);
+    }
     next if ( $prog eq "" || -x $prog );
     print("Error: $prog is not an executable program\n");
     exit(1);
@@ -86,15 +90,38 @@ my $mesg = "Writing tar archive for host $host, backup #$bkupNum";
 #
 # Build the command we will run
 #
-$share  = $bpc->shellEscape($share);
-$host   = $bpc->shellEscape($host);
+$share       = $bpc->shellEscape($share);
+$host        = $bpc->shellEscape($host);
+$bkupNum     = $bpc->shellEscape($bkupNum);
+$fileExt     = $bpc->shellEscape($fileExt);
+$splitSize   = $bpc->shellEscape($splitSize);
+$parfile     = $bpc->shellEscape($parfile);
+my $outLocE  = $bpc->shellEscape($outLoc);
+
+#
+# We prefer to use /bin/csh because the exit status of a pipeline
+# is non-zero if any command is non zero.  In contrast, /bin/sh
+# and /bin/bash use the convention that the exit status is just
+# the exit status of the last command of the pipeline.
+#
+my @shell;
+if ( -x "/bin/csh" ) {
+    @shell = ("/bin/csh", "-cf");
+} elsif ( -x "/bin/sh" ) {
+    @shell = ("/bin/sh", "-c");
+} else {
+    print("Error: Can't find executable /bin/csh or /bin/sh\n");
+    exit(1);
+}
 my $cmd = "$tarCreate -t -h $host -n $bkupNum -s $share . ";
-$cmd   .= "| $compPath " if ( $compPath ne "cat" && $compPath ne "" );
+$cmd   .= "| $compPath " if ( $compPath ne "cat"
+                           && $compPath ne "/bin/cat"
+                           && $compPath ne "" );
 if ( -b $outLoc || -c $outLoc || -f $outLoc ) {
     #
     # Output file is a device or a regular file, so don't use split
     #
-    $cmd  .= ">> $outLoc";
+    $cmd  .= ">> $outLocE";
     $mesg .= " to $outLoc";
 } else {
     mkpath($outLoc) if ( !-d $outLoc );
@@ -103,11 +130,11 @@ if ( -b $outLoc || -c $outLoc || -f $outLoc ) {
         exit(1);
     }
     if ( $splitSize > 0 && -x $splitPath ) {
-        $cmd  .= "| $splitPath -b $splitSize - $outLoc/$host.$bkupNum.tar$fileExt.";
-        $mesg .= ", split to output files $outLoc/$host.$bkupNum.tar$fileExt.*";
+        $cmd  .= "| $splitPath -b $splitSize - $outLocE/$host.$bkupNum.tar$fileExt.";
+        $mesg .= ", split to output files $outLocE/$host.$bkupNum.tar$fileExt.*";
     } else {
-        $cmd  .= "> $outLoc/$host.$bkupNum.tar$fileExt";
-        $mesg .= " to output file $outLoc/$host.$bkupNum.tar$fileExt";
+        $cmd  .= "> $outLocE/$host.$bkupNum.tar$fileExt";
+        $mesg .= " to output file $outLocE/$host.$bkupNum.tar$fileExt";
     }
 }
 print("$mesg\n");
@@ -115,9 +142,9 @@ print("$mesg\n");
 #
 # Run the command
 #
-my $ret = system($cmd);
+my $ret = system(@shell, $cmd);
 if ( $ret ) {
-    print("Executing: $cmd\n");
+    print("Executing: @shell $cmd\n");
     print("Error: $tarCreate, compress or split failed\n");
     exit(1);
 }
@@ -127,9 +154,9 @@ if ( $ret ) {
 # ie: not a tape device).
 #
 if ( -d $outLoc && -x $parPath ) {
-    if ( $parfile != 0 ) {
+    if ( length($parfile) ) {
         print("Running $parPath to create parity files\n");
-	my $parCmd = "$parPath c -r$parfile $outLoc/$host.$bkupNum.tar$fileExt.par2 $outLoc/$host.$bkupNum.tar$fileExt.*";
+	my $parCmd = "$parPath c -r$parfile $outLocE/$host.$bkupNum.tar$fileExt.par2 $outLocE/$host.$bkupNum.tar$fileExt*";
         $ret = system($parCmd);
         if ( $ret ) {
 	    print("Executing: $parCmd\n");