Note, I've tried this with and without the delete function that here preceeds the update. Also, I am not certain that the character appended is always %09, but I know with the comment field it is definitely %09.

dbmopen(%synusers,"synusers",0666) || die "Can't open synusers DBM fil
+e\n";
    #search database entries
    while (($key, $value) = each(%synusers)){
        if (index($key,$fields{'updalumname'})!=-1){
             ($alumemail, $emailpub, $alumsnail1, $snail1pub, $alumsna
+il2, $snail2pub, $alumsnail3, $snail3pub, 
            $phone, $phonepub, $alumyears, $yearspub, $comment, $comme
+ntpub, $synpass, $synpass2)=split(/::/,$value);
        
            if ($fields{'synpassold'} ne $synpass2){
                print "Content-type: text/html", "\n\n";
                print "Incorrect password.  If you cannot remember you
+r old password, email the webmaster.";
                die;
            }
            
            if ($fields{'updsynpass'}==""){
                $fields{'updsynpass'}=$synpass2;
                $fields{'updsynpass2'}=$synpass2;
            }
            delete $synusers{$fields{'updalumname'}};
            $synusers{$fields{'updalumname'}}="
            $fields{'updalumemail'}::$fields{'updemailpub'}::
            $fields{'updalumsnail1'}::$fields{'updsnail1pub'}::$fields
+{'updalumsnail2'}::$fields{'updsnail2pub'}::
            $fields{'updalumsnail3'}::$fields{'updsnail3pub'}::$fields
+{'updphone'}::$fields{'updphonepub'}::$fields{'updalumyears'}::$field
+s{'updyearspub'}::
            $fields{'updcomment'}::$fields{'updcommentpub'}::$fields{'
+updsynpass'}::$fields{'updsynpass2'}";
        
            print "Content-type: text/html", "\n\n";
            print "Thank you for updating your information.";
            die;
        }
    }
[download]

Edit by dws to add <code> tag

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