1  /* Concatenate path components.
       2     Copyright (C) 2018-2021 Free Software Foundation, Inc.
       3  
       4     This program is free software: you can redistribute it and/or modify it
       5     under the terms of the GNU General Public License as published by the
       6     Free Software Foundation; either version 3 of the License, or any
       7     later version.
       8  
       9     This program is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU General Public License for more details.
      13  
      14     You should have received a copy of the GNU General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  /* Written by Akim Demaille <akim@lrde.epita.fr>.  */
      18  
      19  #include <config.h>
      20  
      21  /* Specification.  */
      22  #include "path-join.h"
      23  
      24  #include <concat-filename.h> /* xconcatenated_filename */
      25  #include <filename.h> /* IS_ABSOLUTE_PATH */
      26  #include <xalloc.h> /* xstrdup */
      27  
      28  char *
      29  xpath_join (const char *path1, const char *path2)
      30  {
      31    if (!path2 || !*path2)
      32      return xstrdup (path1);
      33    else if (IS_ABSOLUTE_PATH (path2))
      34      return xstrdup (path2);
      35    else
      36      return xconcatenated_filename (path1, path2, NULL);
      37  }