--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericunixprotocols/ftpsrv/src/popen.cpp	Tue Mar 02 10:33:16 2010 +0530
@@ -0,0 +1,163 @@
+//
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+/*
+ * Copyright (c) 1988, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software written by Ken Arnold and
+ * published in UNIX Review, Vol. 6, No. 8.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+/*
+ * From: @(#)popen.c	8.3 (Berkeley) 4/6/94
+ * From: NetBSD: popen.c,v 1.5 1995/04/11 02:45:00 cgd Exp
+ * From: OpenBSD: popen.c,v 1.8 1996/12/07 10:52:06 bitblt Exp
+ * From: OpenBSD: popen.c,v 1.10 1999/02/26 00:15:54 art Exp
+ */
+char popen_rcsid[] = 
+  "$Id: popen.c,v 1.6 1999/07/16 01:12:54 dholland Exp $";
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <arpa/ftp.h>
+
+#include <errno.h>
+#include <glob.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <dirent.h>
+
+#include "extern.h"
+
+
+//#define SIG_BLOCK 1	/* set of signals to block */
+//#define SIG_SETMASK 0	/* set mask with sigprocmask() */
+
+/*
+ * Special version of popen which avoids call to shell.  This ensures noone
+ * may create a pipe to a hidden program as a side effect of a list or dir
+ * command.
+ *
+ * Note: destroys "program".
+ */
+static int *pids;
+
+
+extern int root;
+extern int type;
+extern off_t	byte_count;
+
+
+#define MAX_ARGV	100
+#define MAX_GARGV	1000
+
+
+FILE *
+ftpd_popen(char *program, const char *type)
+{
+	FILE *volatile iop;
+	int pdes[2];
+
+	if ((*type != 'r' && *type != 'w') || type[1])
+		return (NULL);
+
+
+	if (pipe(pdes) < 0)
+		return (NULL);
+	
+	
+	 if (( iop = popen(program, "r")) == NULL)
+		    {
+			 return (NULL);
+		    }
+	
+	if (*type == 'r') {
+	iop = fdopen(pdes[0], type);
+	(void)close(pdes[1]);
+ 	} else {
+	iop = fdopen(pdes[1], type);
+	(void)close(pdes[0]);
+ 	}
+	
+
+	return (iop);
+}
+
+int
+ftpd_pclose(FILE *iop)
+{
+	int fdes, status;
+	pid_t pid;
+	
+	/*
+	 * pclose returns -1 if stream is not associated with a
+	 * `popened' command, or, if already `pclosed'.
+	 */
+	if (pids == 0 || pids[fdes = fileno(iop)] == 0)
+		return (-1);
+	(void)fclose(iop);
+
+	while ((pid = waitpid(pids[fdes], &status, 0)) < 0 && errno == EINTR)
+		continue;
+	pids[fdes] = 0;
+	if (pid < 0)
+		return (pid);
+	if (WIFEXITED(status))
+		return (WEXITSTATUS(status));
+	return (1);
+}
+
+
+
+
+
+
+