diff -r 000000000000 -r c6b0df440bee genericunixprotocols/ftpsrv/src/popen.cpp --- /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 +#include +#include +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#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); +} + + + + + + +