int get_real_filename(connection_struct *conn, const char *path,
const char *name, TALLOC_CTX *mem_ctx,
char **found_name)
{
int ret;
bool mangled;
mangled = mangle_is_mangled(name, conn->params);
if (mangled) {
return get_real_filename_full_scan(conn, path, name, mangled,
mem_ctx, found_name);
}
/* Try the vfs first to take advantage of case-insensitive stat. */
ret = SMB_VFS_GET_REAL_FILENAME(conn, path, name, mem_ctx, found_name);
/*
* If the case-insensitive stat was successful, or returned an error
* other than EOPNOTSUPP then there is no need to fall back on the
* full directory scan.
*/
if (ret == 0 || (ret == -1 && errno != EOPNOTSUPP)) {
return ret;
}
return get_real_filename_full_scan(conn, path, name, mangled, mem_ctx,
found_name);
}
static int get_real_filename_mangled(connection_struct *conn, const char *path,
const char *name, TALLOC_CTX *mem_ctx,
char **found_name)
{
bool mangled;
char *unmangled_name = NULL;
mangled = mangle_is_mangled(name, conn->params);
/* handle null paths */
if ((path == NULL) || (*path == 0)) {
path = ".";
}
/* If we have a case-sensitive filesystem, it doesn't do us any
* good to search for a name. If a case variation of the name was
* there, then the original stat(2) would have found it.
*/
if (!mangled && !(conn->fs_capabilities & FILE_CASE_SENSITIVE_SEARCH)) {
errno = ENOENT;
return -1;
}
/*
* The incoming name can be mangled, and if we de-mangle it
* here it will not compare correctly against the filename (name2)
* read from the directory and then mangled by the name_to_8_3()
* call. We need to mangle both names or neither.
* (JRA).
*
* Fix for bug found by Dina Fine. If in case sensitive mode then
* the mangle cache is no good (3 letter extension could be wrong
* case - so don't demangle in this case - leave as mangled and
* allow the mangling of the directory entry read (which is done
* case insensitively) to match instead. This will lead to more
* false positive matches but we fail completely without it. JRA.
*/
if (mangled && !conn->case_sensitive) {
mangled = !mangle_lookup_name_from_8_3(talloc_tos(), name,
&unmangled_name,
conn->params);
if (!mangled) {
/* Name is now unmangled. */
name = unmangled_name;
}
return get_real_filename(conn, path, name, mem_ctx,
found_name);
}
return SMB_VFS_GET_REAL_FILENAME(conn, path, name, mem_ctx,
found_name);
}
