[unix-history] / gnu / libexec / uucp / libunix / run.c

/* run.c
  Run a program.

  Copyright (C) 1992 Ian Lance Taylor

  This file is part of the Taylor UUCP package.

  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 2 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, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

  The author of the program may be contacted at ian@airs.com or
  c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
  */

#include "uucp.h"

#include "uudefs.h"
#include "sysdep.h"
#include "system.h"

#include <errno.h>
\f
/* Start up a new program and end the current one.  We don't have to
  worry about SIGHUP because the current process is either not a
  process group leader (uucp, uux) or it does not have a controlling
  terminal (uucico).  */

boolean
fsysdep_run (zprogram, zarg1, zarg2)
    const char *zprogram;
    const char *zarg1;
    const char *zarg2;
{
 char *zlib;
 const char *azargs[4];
 int aidescs[3];
 pid_t ipid;

 zlib = zbufalc (sizeof SBINDIR + sizeof "/" + strlen (zprogram));
 sprintf (zlib, "%s/%s", SBINDIR, zprogram);

 azargs[0] = zlib;
 azargs[1] = zarg1;
 azargs[2] = zarg2;
 azargs[3] = NULL;

 aidescs[0] = SPAWN_NULL;
 aidescs[1] = SPAWN_NULL;
 aidescs[2] = SPAWN_NULL;

 /* We pass fsetuid and fshell as TRUE, which permits uucico and
    uuxqt to be replaced by (non-setuid) shell scripts.  */
 ipid = ixsspawn (azargs, aidescs, TRUE, FALSE, (const char *) NULL,
                  FALSE, TRUE, (const char *) NULL,
                  (const char *) NULL, (const char *) NULL);
 ubuffree (zlib);
 if (ipid < 0)
   {
     ulog (LOG_ERROR, "ixsspawn: %s", strerror (errno));
     return FALSE;
   }

 return TRUE;
}