pfopen.h

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/*--------------------------------------------------------------------------
 
   Copyright (c) 2006-2007, Intellectual Reserve, Inc. All rights reserved.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 as 
   published by the Free Software Foundation.
 
   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, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
  --------------------------------------------------------------------------*/

#ifndef _PFOPEN_H_
#define _PFOPEN_H_

#include <sys/types.h>  // for pid_t on some systems
#include <unistd.h>
#include <stdio.h>

#define PF_OUT(pf)   ((pf)->fp[0])  
#define PF_ERR(pf)   ((pf)->fp[1])  
#define PF_IN(pf)    ((pf)->fp[2])  

typedef struct _pfile_ 
{
   FILE * fp[3];
   pid_t pid;
} PFILE;

PFILE * pfopen(const char * cmdstring, const char * type);
int pfclose(PFILE * pfile);
int pfkill(PFILE * pfile, int sig);

#endif   /* _PFOPEN_H_ */