char *
normalize_filename (int cdidx, const char *name)
{
char *copy = NULL;
if (IS_RELATIVE_FILE_NAME (name))
{
/* Set COPY to the absolute path for this name.
FIXME: There should be no need to get the absolute file name.
tar_getcdpath does not return a true "canonical" path, so
this following approach may lead to situations where the same
file or directory is processed twice under different absolute
paths without that duplication being detected. Perhaps we
should use dev+ino pairs instead of names? */
const char *cdpath = tar_getcdpath (cdidx);
size_t copylen;
bool need_separator;
if (!cdpath)
call_arg_fatal ("getcwd", ".");
copylen = strlen (cdpath);
need_separator = ! (DOUBLE_SLASH_IS_DISTINCT_ROOT
&& copylen == 2 && ISSLASH (cdpath[1]));
copy = xmalloc (copylen + need_separator + strlen (name) + 1);
strcpy (copy, cdpath);
copy[copylen] = DIRECTORY_SEPARATOR;
strcpy (copy + copylen + need_separator, name);
}
if (!copy)
copy = xstrdup (name);
normalize_filename_x (copy);
return copy;
}
char *
normalize_filename (const char *name)
{
char *copy = NULL;
if (IS_RELATIVE_FILE_NAME (name))
{
/* Set COPY to the absolute file name if possible.
FIXME: There should be no need to get the absolute file name.
getcwd is slow, it might fail, and it does not necessarily
return a canonical name even when it succeeds. Perhaps we
can use dev+ino pairs instead of names? */
copy = xgetcwd ();
if (copy)
{
size_t copylen = strlen (copy);
bool need_separator = ! (DOUBLE_SLASH_IS_DISTINCT_ROOT
&& copylen == 2 && ISSLASH (copy[1]));
copy = xrealloc (copy, copylen + need_separator + strlen (name) + 1);
copy[copylen] = DIRECTORY_SEPARATOR;
strcpy (copy + copylen + need_separator, name);
}
else
WARN ((0, errno, _("Cannot get working directory")));
}
if (! copy)
copy = xstrdup (name);
normalize_filename_x (copy);
return copy;
}
