/* Miscellaneous functions, not really specific to GNU tar.
- Copyright (C) 1988, 1992, 1994, 1995, 1996, 1997, 1999, 2000, 2001,
- 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2012 Free Software Foundation, Inc.
+ Copyright 1988, 1992, 1994-1997, 1999-2001, 2003-2007, 2009-2010,
+ 2012-2013 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Public License for more details.
You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ with this program. If not, see <http://www.gnu.org/licenses/>. */
#define COMMON_INLINE _GL_EXTERN_INLINE
#include <system.h>
the range MINVAL .. -1, represent it with a string representation
of the negative integer, using leading '-'. */
#if ! (INTMAX_MAX <= UINTMAX_MAX / 2)
-# error "strtosysint accepts uintmax_t to represent intmax_t"
+# error "sysinttostr: uintmax_t cannot represent all intmax_t values"
#endif
char *
sysinttostr (uintmax_t value, intmax_t minval, uintmax_t maxval,
On conversion error, return 0 and set errno = EINVAL.
On overflow, return an extreme value and set errno = ERANGE. */
#if ! (INTMAX_MAX <= UINTMAX_MAX)
-# error "strtosysint accepts uintmax_t to represent nonnegative intmax_t"
+# error "strtosysint: nonnegative intmax_t does not fit in uintmax_t"
#endif
intmax_t
strtosysint (char const *arg, char **arglim, intmax_t minval, uintmax_t maxval)
case RECURSIVE_REMOVE_OPTION:
{
- char *directory = savedir (file_name);
+ char *directory = tar_savedir (file_name, 0);
char const *entry;
size_t entrylen;
strcpy (buf->buffer + buf->dir_length, name);
return buf->buffer;
}
+
+/* Return the filenames in directory NAME, relative to the chdir_fd.
+ If the directory does not exist, report error if MUST_EXIST is
+ true.
+
+ Return NULL on errors.
+*/
+char *
+tar_savedir (const char *name, int must_exist)
+{
+ char *ret = NULL;
+ DIR *dir = NULL;
+ int fd = openat (chdir_fd, name, open_read_flags | O_DIRECTORY);
+ if (fd < 0)
+ {
+ if (!must_exist && errno == ENOENT)
+ return NULL;
+ open_error (name);
+ }
+ else if (! ((dir = fdopendir (fd))
+ && (ret = streamsavedir (dir))))
+ savedir_error (name);
+
+ if (dir ? closedir (dir) != 0 : 0 <= fd && close (fd) != 0)
+ savedir_error (name);
+
+ return ret;
+}