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Diff for /loncom/pwchange between versions 1.3 and 1.7

version 1.3, 2001/11/15 18:15:06 version 1.7, 2002/09/16 13:27:40
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   
 # The Learning Online Network  # The Learning Online Network with CAPA
 #  #
 # pwchange - setuid script to change unix passwords  # pwchange - setuid script to change unix passwords
 #  #
 # YEAR=2001  # YEAR=2001
 # 10/23,11/13,11/15 Scott Harrison  # 10/23,11/13,11/15 Scott Harrison
 #  #
   # YEAR=2002
   # 02/19 Matthew Hall
   #
 # $Id$  # $Id$
 ###  ###
   
 use strict;  use strict;
   my $noprint = 1;
   
 # ------------------------------------------------------------------ Untainting  # ------------------------------------------------------------------ Untainting
 $ENV{'PATH'}='/bin:/usr/bin'; # Nullify path information.  $ENV{'PATH'}='/bin:/usr/bin'; # Nullify path information.
 delete @ENV{qw(IFS CDPATH ENV BASH_ENV)}; # nullify potential taints  delete @ENV{qw(IFS CDPATH ENV BASH_ENV)}; # nullify potential taints
   
 # ----------------------------- Make sure this process is running from user=www  # ---------------------------- Make sure this process is running from user=root
 my $wwwid=getpwnam('www');  my $wwwid=getpwnam('www');
 if ($wwwid!=$<) {  if (0!=$<) {
       print "Username not www" unless $noprint;
    exit 1;     exit 1;
 }  }
 # ----------------------------------------------- If not running setuid as root  # ----------------------------------------------- If not running setuid as root
 if ($>!=0) {  if ($>!=0) {
       print "Not setuid to root" unless $noprint;
     exit 1;      exit 1;
 }  }
   
Line 30  if ($>!=0) { Line 36  if ($>!=0) {
 my $user=shift @ARGV;  my $user=shift @ARGV;
 $user=~/^(\w+)$/;  $user=~/^(\w+)$/;
 my $safe=$1;  my $safe=$1;
   print "Save user = $safe" unless $noprint;
   
 my $pword=<>;  my $pword=<>;
 chomp $pword;  chomp $pword;
 unless (length($safe) and ($user eq $safe) and ($safe=~/^[A-Za-z]/)) {  unless (length($safe) and ($user eq $safe) and ($safe=~/^[A-Za-z]/)) {
     exit 2;      exit 2;
 }  }
   print "Password = $pword" unless $noprint;
 my $pbad=0;  my $pbad=0;
 map {if (($_<32)&&($_>126)){$pbad=1;}} (split(//,$pword));  foreach (split(//,$pword)) {if ((ord($_)<32)||(ord($_)>126)){$pbad=1;}} 
 exit 3 if $pbad;  exit 3 if $pbad;
   
 # --------------------------------------------------------- Call system command  # --------------------------------------------------------- Call system command
Removed from v.1.3  
changed lines
  Added in v.1.7

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