Line data    Source code

       1             : /* Copyright (C) 2014 Wildfire Games.
       2             :  *
       3             :  * Permission is hereby granted, free of charge, to any person obtaining
       4             :  * a copy of this software and associated documentation files (the
       5             :  * "Software"), to deal in the Software without restriction, including
       6             :  * without limitation the rights to use, copy, modify, merge, publish,
       7             :  * distribute, sublicense, and/or sell copies of the Software, and to
       8             :  * permit persons to whom the Software is furnished to do so, subject to
       9             :  * the following conditions:
      10             :  *
      11             :  * The above copyright notice and this permission notice shall be included
      12             :  * in all copies or substantial portions of the Software.
      13             :  *
      14             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
      15             :  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
      16             :  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
      17             :  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
      18             :  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
      19             :  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
      20             :  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
      21             :  */
      22             : 
      23             : #include "precompiled.h"
      24             : 
      25             : #include "lib/sysdep/sysdep.h"
      26             : #include "lib/sysdep/os/unix/unix_executable_pathname.h"
      27             : 
      28         282 : static bool getPathFromProc(char* buffer, size_t length)
      29             : {
      30         282 :     int pos = readlink("/proc/self/exe", buffer, length-1);
      31         282 :     if (pos <= 0)
      32           0 :         return false;
      33             : 
      34         282 :     buffer[pos] = '\0';
      35             : 
      36         282 :     char* endOfPath = strrchr(buffer, '/');
      37         282 :     if (endOfPath == NULL)
      38           0 :         return false;
      39             : 
      40         282 :     ++endOfPath;
      41         282 :     *endOfPath = '\0';
      42             : 
      43         282 :     return true;
      44             : }
      45             : 
      46         282 : OsPath sys_ExecutablePathname()
      47             : {
      48             :     // Check /proc for the path
      49             :     char pathBuffer[PATH_MAX];
      50         282 :     if (getPathFromProc(pathBuffer, sizeof(pathBuffer)))
      51         282 :         return pathBuffer;
      52             : 
      53           0 :     return unix_ExecutablePathname();
      54           3 : }