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/* Copyright (C) 1998-2021 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
<https://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
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