From c8074d2c6e5eaa228e6d37be9a682b4c5a393162 Mon Sep 17 00:00:00 2001
From: Christian Parpart <christian@parpart.family>
Date: Wed, 24 Aug 2022 15:46:08 +0200
Subject: [PATCH] lsp: Limit resolvesToRegularFile()'s recursion depth to 10.

---
 libsolidity/lsp/LanguageServer.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libsolidity/lsp/LanguageServer.cpp b/libsolidity/lsp/LanguageServer.cpp
index 6ea60e0cf..65eeaf3d5 100644
--- a/libsolidity/lsp/LanguageServer.cpp
+++ b/libsolidity/lsp/LanguageServer.cpp
@@ -58,14 +58,15 @@ namespace fs = boost::filesystem;
 namespace
 {
 
-bool resolvesToRegularFile(boost::filesystem::path _path)
+bool resolvesToRegularFile(boost::filesystem::path _path, int maxRecursionDepth = 10)
 {
 	fs::file_status fileStatus = fs::status(_path);
 
-	while (fileStatus.type() == fs::file_type::symlink_file)
+	while (fileStatus.type() == fs::file_type::symlink_file && maxRecursionDepth > 0)
 	{
 		_path = boost::filesystem::read_symlink(_path);
 		fileStatus = fs::status(_path);
+		maxRecursionDepth--;
 	}
 
 	return fileStatus.type() == fs::file_type::regular_file;