xorg-server-1.4/hw/xfree86/utils/xorgcfg/startx.c

   1 /*
   2  * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * CONECTIVA LINUX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  *
  22  * Except as contained in this notice, the name of Conectiva Linux shall
  23  * not be used in advertising or otherwise to promote the sale, use or other
  24  * dealings in this Software without prior written authorization from
  25  * Conectiva Linux.
  26  *
  27  * Author: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
  28  *
  29  */
  30
  31 #include "config.h"
  32 #include <sys/types.h>
  33 #include <sys/wait.h>
  34 #include <signal.h>
  35
  36 /*
  37  * Initialization
  38  */
  39 static int xpid;
  40 Display *DPY;
  41
  42 /*
  43  * Implementation
  44  */
  45 Bool
  46 startx(void)
  47 {
  48     int timeout = 8;
  49
  50     if (getenv("DISPLAY") != NULL)
  51         /* already running Xserver */
  52         return (False);
  53
  54     if (XF86Config_path == NULL) {
  55         char *home, filename[PATH_MAX];
  56         char commandline[PATH_MAX * 4];
  57         int c_pos;
  58         int len;
  59         /*
  60          * The name of the 4.0 binary is XFree86. X might also
  61          * be the name of the 3.3 binary. Therefore don't change
  62          * name to 'X'.
  63          */
  64         if (XFree86_path)
  65             c_pos = XmuSnprintf(commandline, sizeof(commandline),
  66                                 "%s/"__XSERVERNAME__" :8 -configure ",XFree86_path);
  67         else
  68             c_pos = XmuSnprintf(commandline, sizeof(commandline),
  69                                 "%s/bin/"__XSERVERNAME__" :8 -configure ", XFree86Dir);
  70         if (XF86Module_path && ((len = sizeof(commandline) - c_pos) > 0))
  71             c_pos += XmuSnprintf(commandline + c_pos,len,
  72                                  " -modulepath %s",XF86Module_path);
  73         if (XF86Font_path && ((len = sizeof(commandline) - c_pos) > 0))
  74             c_pos += XmuSnprintf(commandline + c_pos,len,
  75                                  " -fontpath %s",XF86Font_path);
  76         if (XF86RGB_path && ((len = sizeof(commandline) - c_pos) > 0))
  77             c_pos += XmuSnprintf(commandline + c_pos,len,
  78                                  " -rgbpath %s",XF86RGB_path);
  79
  80         if (system(commandline) != 0) {
  81             fprintf(stderr, "Failed to run \"X -configure\".\n");
  82             exit(1);
  83         }
  84
  85         if ((home = getenv("HOME")) == NULL)
  86             home = "/";
  87
  88 #ifndef QNX4
  89         XmuSnprintf(filename, sizeof(filename), "%s/"__XCONFIGFILE__".new", home);
  90 #else
  91         XmuSnprintf(filename, sizeof(filename), "//%d%s/"__XCONFIGFILE__".new",
  92                     getnid(), home);
  93 #endif
  94
  95         /* this memory is never released, even if the value of XF86Config_path is
  96          * changed.
  97          */
  98         XF86Config_path = XtNewString(filename);
  99     }
 100
 101     putenv("DISPLAY=:8");
 102
 103     switch (xpid = fork()) {
 104         case 0: {
 105             char path[PATH_MAX];
 106             /* Don't change to X! see above */
 107             if (XFree86_path)
 108                 XmuSnprintf(path, sizeof(path), "%s/"__XSERVERNAME__, XFree86_path);
 109             else
 110                 XmuSnprintf(path, sizeof(path), "%s/bin/"__XSERVERNAME__, XFree86Dir);
 111             execl(path, "X", ":8", /*"+xinerama",*/ "+accessx","-allowMouseOpenFail",
 112                   "-xf86config", XF86Config_path, (void *)NULL);
 113             exit(-127);
 114         }   break;
 115         case -1:
 116             fprintf(stderr, "Cannot fork.\n");
 117             exit(1);
 118             break;
 119         default:
 120             break;
 121     }
 122
 123     while (timeout > 0) {
 124         int status;
 125
 126         sleep(timeout -= 2);
 127         if (waitpid(xpid, &status, WNOHANG | WUNTRACED) == xpid)
 128             break;
 129         else {
 130             DPY = XOpenDisplay(NULL);
 131             if (DPY != NULL)
 132                 break;
 133         }
 134     }
 135
 136     if (DPY == NULL) {
 137         fprintf(stderr, "Cannot connect to X server.\n");
 138         exit(1);
 139     }
 140
 141     return (True);
 142 }
 143
 144 void
 145 endx(void)
 146 {
 147     if (xpid != 0)
 148         kill(xpid, SIGTERM);
 149 }