X-Git-Url: http://git.pk910.de/?p=NeonServV5.git;a=blobdiff_plain;f=scripts%2Fexamples%2Fcalc.php;fp=scripts%2Fexamples%2Fcalc.php;h=b907bc51572bd7574d96490f7cacce8de6a605e1;hp=0000000000000000000000000000000000000000;hb=d559baaa06c14a6dfc0354457a84ad904fc2f9be;hpb=43342c54bf6f6b8a2e5fb4effea243cf7188cd4b

diff --git a/scripts/examples/calc.php b/scripts/examples/calc.php
new file mode 100644
index 0000000..b907bc5
--- /dev/null
+++ b/scripts/examples/calc.php
@@ -0,0 +1,102 @@
+<?php
+/* calc.php - NeonServ v5.6
+ * Copyright (C) 2011-2012  Philipp Kreil (pk910)
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License 
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. 
+ */
+
+$text = implode(" ", array_slice($argv, 1));
+
+$descriptor = array(0 => array("pipe", "r"),1 => array("pipe", "w"),2 => array("pipe", "w"));
+$proc = proc_open('bc -l -q', $descriptor, $pipes);
+
+if(!is_resource($proc)) {
+    echo"internal calc error - please contact an administrator.\n";
+    die();
+}
+
+fwrite($pipes[0], $text."\nquit\n");
+
+$start = time();
+
+$read=array($pipes[1]);
+$write=NULL;
+$except=NULL;
+
+while(1) {
+    $data = proc_get_status($proc);
+    if(!$data['running']) {
+        $out="";
+        while(!feof($pipes[1])) { 
+            $out .= fgets($pipes[1], 128); 
+        }
+        if($out == "") {
+            $out="\0034";
+            while(!feof($pipes[2])) { 
+                $out .= fgets($pipes[2], 128); 
+            }
+            $out.="";
+        }
+        $out=str_replace("\n","",$out);
+        $out=str_replace("\r","",$out);
+        $out=str_replace("\\","",$out);
+        
+        if(strlen($text) > 20) {
+            if(strlen($out) > 450) {
+                echo "output too long (".strlen($out).")\n";
+            } else {
+                echo "".$text."\n";
+                echo $out."\n";
+            }
+        } else {
+            $fout="".$text." = ".$out;
+            if(strlen($fout) > 450) {
+                echo "output too long (".strlen($out).")";
+            } else {
+                echo $fout."\n";
+            }
+        }
+        
+        fclose($pipes[0]);
+        fclose($pipes[1]);
+        fclose($pipes[2]);
+        proc_close($proc);
+        
+        die();
+    } else {
+        
+        if($start+3 > time()) {
+            usleep(200000); //200ms
+        } else {
+            //TIMEOUT
+            fclose($pipes[0]);
+            fclose($pipes[1]);
+            fclose($pipes[2]);
+            //can't simply use proc_terminate: https://bugs.php.net/bug.php?id=39992
+            $ppid = $data['pid'];
+            //use ps to get all the children of this process, and kill them
+            $pids = preg_split('/\s+/', `ps -o pid --no-heading --ppid $ppid`);
+            foreach($pids as $pid) {
+                if(is_numeric($pid)) {
+                    posix_kill($pid, 9); //SIGKILL signal
+                }
+            }
+            proc_close($proc); 
+            echo "calculator timeout. (maximum of 3 seconds exceeded)\n";
+            die();
+        }
+    }
+}
+
+?>