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Prevent endless recursive directory scans

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This can happen when a folder symlinks to itself or subfolders
in some similar recursive pattern.
This commit is contained in:
Robin Gareus 2024-09-08 01:33:57 +02:00
parent e8162a421d
commit d257c8c0ce
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 17 additions and 10 deletions
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25
libs/pbd/file_utils.cc
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@ -22,6 +22,7 @@
#include <algorithm>
#include <climits>
#include <set>
#include <vector>
#include <glib.h>
@ -80,7 +81,8 @@ run_functor_for_paths (vector<string>& result,
void *arg,
bool pass_files_only,
bool pass_fullpath, bool return_fullpath,
bool recurse)
bool recurse,
set<string>& scanned_paths)
{
for (vector<string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
try
@ -102,11 +104,12 @@ run_functor_for_paths (vector<string>& result,
bool is_dir = Glib::file_test (fullpath, Glib::FILE_TEST_IS_DIR);
if (is_dir && recurse) {
DEBUG_TRACE (DEBUG::FileUtils,
string_compose("Descending into directory: %1\n",
fullpath));
if (scanned_paths.find (fullpath) == scanned_paths.end ()) {
scanned_paths.insert (fullpath);
DEBUG_TRACE (DEBUG::FileUtils, string_compose("Descending into directory: %1\n", fullpath));
run_functor_for_paths (result, fullpath, functor, arg, pass_files_only,
pass_fullpath, return_fullpath, recurse);
pass_fullpath, return_fullpath, recurse, scanned_paths);
}
}
if (is_dir && pass_files_only) {
@ -163,8 +166,9 @@ get_paths (vector<string>& result,
bool files_only,
bool recurse)
{
set<string> scanned_path;
run_functor_for_paths (result, paths, accept_all_files, 0,
files_only, true, true, recurse);
files_only, true, true, recurse, scanned_path);
}
void
@ -186,9 +190,10 @@ find_files_matching_pattern (vector<string>& result,
const Searchpath& paths,
const Glib::PatternSpec& pattern)
{
set<string> unused;
run_functor_for_paths (result, paths, pattern_filter,
const_cast<Glib::PatternSpec*>(&pattern),
true, false, true, false);
true, false, true, false, unused);
}
void
@ -281,7 +286,8 @@ find_paths_matching_filter (vector<string>& result,
bool pass_fullpath, bool return_fullpath,
bool recurse)
{
run_functor_for_paths (result, paths, filter, arg, false, pass_fullpath, return_fullpath, recurse);
set<string> scanned_path;
run_functor_for_paths (result, paths, filter, arg, false, pass_fullpath, return_fullpath, recurse, scanned_path);
}
void
@ -292,7 +298,8 @@ find_files_matching_filter (vector<string>& result,
bool pass_fullpath, bool return_fullpath,
bool recurse)
{
run_functor_for_paths (result, paths, filter, arg, true, pass_fullpath, return_fullpath, recurse);
set<string> scanned_path;
run_functor_for_paths (result, paths, filter, arg, true, pass_fullpath, return_fullpath, recurse, scanned_path);
}
bool