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/*
Copyright (C) 1996-2015 John W. Eaton
This file is part of Octave.
Octave 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.
Octave 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 Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <iostream>
#include <string>
#include <vector>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#if defined (__WIN32__) && ! defined (__CYGWIN__)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#include "file-ops.h"
#include "lo-error.h"
#include "pathlen.h"
#include "lo-sysdep.h"
#include "str-vec.h"
#include "oct-locbuf.h"
std::string
octave_getcwd (void)
{
std::string retval;
// Using the gnulib getcwd module ensures that we have a getcwd that
// will allocate a buffer as large as necessary if buf and size are
// both 0.
char *tmp = gnulib::getcwd (0, 0);
if (tmp)
{
retval = tmp;
free (tmp);
}
else
(*current_liboctave_error_handler) ("unable to find current directory");
return retval;
}
int
octave_chdir (const std::string& path_arg)
{
std::string path = file_ops::tilde_expand (path_arg);
#if defined (__WIN32__) && ! defined (__CYGWIN__)
if (path.length () == 2 && path[1] == ':')
path += "\\";
#endif
return gnulib::chdir (path.c_str ());
}
#if defined (__WIN32__) && ! defined (__CYGWIN__)
pid_t
octave_popen2 (const std::string& cmd, const string_vector& args,
bool sync_mode,
int *fildes, std::string& msg)
{
pid_t pid;
PROCESS_INFORMATION pi;
STARTUPINFO si;
std::string command = "\"" + cmd + "\"";
HANDLE hProcess = GetCurrentProcess ();
HANDLE childRead, childWrite, parentRead, parentWrite;
DWORD pipeMode;
ZeroMemory (&pi, sizeof (pi));
ZeroMemory (&si, sizeof (si));
si.cb = sizeof (si);
if (! CreatePipe (&childRead, &parentWrite, 0, 0)
|| ! DuplicateHandle (hProcess, childRead, hProcess, &childRead,
0, TRUE,
DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
{
msg = "popen2: pipe creation failed";
return -1;
}
if (! CreatePipe (&parentRead, &childWrite, 0, 0)
|| ! DuplicateHandle (hProcess, childWrite, hProcess, &childWrite,
0, TRUE,
DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
{
msg = "popen2: pipe creation failed";
return -1;
}
if (! sync_mode)
{
pipeMode = PIPE_NOWAIT;
SetNamedPipeHandleState (parentRead, &pipeMode, 0, 0);
}
fildes[1] = _open_osfhandle (reinterpret_cast<intptr_t> (parentRead),
_O_RDONLY | _O_BINARY);
fildes[0] = _open_osfhandle (reinterpret_cast<intptr_t> (parentWrite),
_O_WRONLY | _O_BINARY);
si.dwFlags |= STARTF_USESTDHANDLES;
si.hStdInput = childRead;
si.hStdOutput = childWrite;
si.hStdError = GetStdHandle (STD_ERROR_HANDLE);
// Ignore first arg as it is the command
for (int k=1; k<args.length (); k++)
command += " \"" + args[k] + "\"";
OCTAVE_LOCAL_BUFFER (char, c_command, command.length () + 1);
strcpy (c_command, command.c_str ());
if (! CreateProcess (0, c_command, 0, 0, TRUE, 0, 0, 0, &si, &pi))
{
msg = "popen2: process creation failed";
return -1;
}
pid = pi.dwProcessId;
CloseHandle (childRead);
CloseHandle (childWrite);
CloseHandle (pi.hProcess);
CloseHandle (pi.hThread);
return pid;
}
#endif
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