glibc/support/temp_file.h
Siddhesh Poyarekar 062ff490c1 support: Add helpers to create paths longer than PATH_MAX
Add new helpers support_create_and_chdir_toolong_temp_directory and
support_chdir_toolong_temp_directory to create and descend into
directory trees longer than PATH_MAX.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit fb7bff12e8)
2022-01-24 11:35:18 +05:30

59 lines
2.4 KiB
C

/* Declarations for temporary file handling.
Copyright (C) 2016-2021 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/>. */
#ifndef SUPPORT_TEMP_FILE_H
#define SUPPORT_TEMP_FILE_H
#include <sys/cdefs.h>
__BEGIN_DECLS
/* Schedule a temporary file for deletion on exit. */
void add_temp_file (const char *name);
/* Create a temporary file. Return the opened file descriptor on
success, or -1 on failure. Write the file name to *FILENAME if
FILENAME is not NULL. In this case, the caller is expected to free
*FILENAME. */
int create_temp_file (const char *base, char **filename);
/* Create a temporary file in directory DIR. Return the opened file
descriptor on success, or -1 on failure. Write the file name to
*FILENAME if FILENAME is not NULL. In this case, the caller is
expected to free *FILENAME. */
int create_temp_file_in_dir (const char *base, const char *dir,
char **filename);
/* Create a temporary directory and schedule it for deletion. BASE is
used as a prefix for the unique directory name, which the function
returns. The caller should free this string. */
char *support_create_temp_directory (const char *base);
/* Create a temporary directory tree that is longer than PATH_MAX and schedule
it for deletion. BASENAME is used as a prefix for the unique directory
name, which the function returns. The caller should free this string. */
char *support_create_and_chdir_toolong_temp_directory (const char *basename);
/* Change into the innermost directory of the directory tree BASE, which was
created using support_create_and_chdir_toolong_temp_directory. */
void support_chdir_toolong_temp_directory (const char *base);
__END_DECLS
#endif /* SUPPORT_TEMP_FILE_H */