remote/gwave-exec.c

   1 /* $Id: gwave-exec.c,v 1.1 2000-11-06 06:39:09 sgt Exp $
   2  *
   3  * this is a generalized version of scwmexec,
   4  * Copyright (C) 1997-2000, Maciej Stachowiak and Greg J. Badros
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this software; see the file COPYING.GPL.  If not, write to
  18  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  19  * Boston, MA 02111-1307 USA
  20  *
  21  */
  22
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #include "xgexec.h"
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 Display *display;
  34 char *dispName;
  35
  36 int
  37 init_display()
  38 {
  39         if (!(dispName = getenv("DISPLAY")))
  40                 return 0;
  41         if (!(display = XOpenDisplay(dispName)))
  42                 return 0;
  43         return 1;
  44 }
  45
  46
  47 void die(char *str)
  48 {
  49         fputs(str,stderr);
  50         exit(1);
  51 }
  52
  53 int
  54 main(int argc, char **argv)
  55 {
  56         Window w;
  57         char *result, *output, *error;
  58
  59         if (argc != 2)
  60                 die("Usage: xgexec EXPRESSION\n");
  61         if (!init_display())
  62                 die("Could not connect to server. Check your DISPLAY environment variable.\n");
  63
  64         w=xgexec_init(display);
  65
  66         if (w==None)
  67                 die("Unable to establish xgexec connection.\n");
  68
  69         result = xgexec_exec_full(display,w,argv[1],&output,&error);
  70
  71         fputs(output, stdout);
  72         if (strlen(error)!=0) {
  73                 fputs(error, stderr);
  74         } else {
  75                 fputs(result, stdout);
  76         }
  77
  78         if (result) XFree(result);
  79         if (error) XFree(error);
  80         if (output) XFree(output);
  81
  82         XCloseDisplay (display);
  83
  84         return 0;
  85 }