/* Copyright (C) 1998-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library.  If not, see

   <http://www.gnu.org/licenses/>.  */

/* This file contains only wrappers around the real glob functions.  It

   became necessary since the glob_t structure changed.  */

#include <sys/types.h>

#include <glob.h>

#include <shlib-compat.h>

#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)

/* This is the old structure.  The difference is that the gl_pathc and

   gl_offs elements have type `int'.  */

typedef struct

  {

    int gl_pathc;		/* Count of paths matched by the pattern.  */

    char **gl_pathv;		/* List of matched pathnames.  */

    int gl_offs;		/* Slots to reserve in `gl_pathv'.  */

    int gl_flags;		/* Set to FLAGS, maybe | GLOB_MAGCHAR.  */

    /* If the GLOB_ALTDIRFUNC flag is set, the following functions

       are used instead of the normal file access functions.  */

    void (*gl_closedir) (void *);

    struct dirent *(*gl_readdir) (void *);

    void *(*gl_opendir) (const char *);

    int (*gl_lstat) (const char *, struct stat *);

    int (*gl_stat) (const char *, struct stat *);

  } old_glob_t;

int

attribute_compat_text_section

__old_glob (const char *pattern, int flags,

	    int (*errfunc) (const char *, int),

	    old_glob_t *pglob)

{

  glob_t correct;

  int result;

  /* Construct an object of correct type.  */

  correct.gl_pathc = pglob->gl_pathc;

  correct.gl_pathv = pglob->gl_pathv;

  correct.gl_offs = pglob->gl_offs;

  correct.gl_flags = pglob->gl_flags;

  correct.gl_closedir = pglob->gl_closedir;

  correct.gl_readdir = pglob->gl_readdir;

  correct.gl_opendir = pglob->gl_opendir;

  /* Set gl_lstat and gl_stat for both gl_stat for compatibility with old

     implementation that did not follow dangling symlinks.  */

  correct.gl_lstat = pglob->gl_stat;

  correct.gl_stat = pglob->gl_stat;

  result = glob (pattern, flags, errfunc, &correct);

  /* And convert it back.  */

  pglob->gl_pathc = correct.gl_pathc;

  pglob->gl_pathv = correct.gl_pathv;

  pglob->gl_offs = correct.gl_offs;

  pglob->gl_flags = correct.gl_flags;

  pglob->gl_closedir = correct.gl_closedir;

  pglob->gl_readdir = correct.gl_readdir;

  pglob->gl_opendir = correct.gl_opendir;

  /* Only need to restore gl_stat.  */

  pglob->gl_stat = correct.gl_stat;

  return result;

}

compat_symbol (libc, __old_glob, glob, GLIBC_2_0);

/* Free storage allocated in PGLOB by a previous `glob' call.  */

void

attribute_compat_text_section

__old_globfree (old_glob_t *pglob)

{

  glob_t correct;

  /* We only need these two symbols.  */

  correct.gl_pathc = pglob->gl_pathc;

  correct.gl_pathv = pglob->gl_pathv;

  correct.gl_offs = pglob->gl_offs;

  globfree (&correct);

}

compat_symbol (libc, __old_globfree, globfree, GLIBC_2_0);

#endif