From 476b57b08abf6a8dab17159f70a3c2c2ef727c22 Mon Sep 17 00:00:00 2001
From: 48cf <32851089+48cf@users.noreply.github.com>
Date: Sun, 28 Jan 2024 01:33:26 +0100
Subject: [PATCH] options/rtdl: Drop trailing slashes from paths in
 LD_LIBRARY_PATH

---
 options/rtdl/generic/linker.cpp |  2 +-
 options/rtdl/generic/main.cpp   | 25 ++++++++++++++++++++-----
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/options/rtdl/generic/linker.cpp b/options/rtdl/generic/linker.cpp
index 62408f4b78..92ebadb8f0 100644
--- a/options/rtdl/generic/linker.cpp
+++ b/options/rtdl/generic/linker.cpp
@@ -235,7 +235,7 @@ SharedObject *ObjectRepository::requestObjectWithName(frg::string_view name,
 		auto ldPath = (*libraryPaths)[i];
 		auto path = frg::string<MemoryAllocator>{getAllocator(), ldPath} + '/' + name;
 		if(logLdPath)
-			mlibc::infoLogger() << "rtdl: Trying to load " << name << " from ldpath " << ldPath << frg::endlog;
+			mlibc::infoLogger() << "rtdl: Trying to load " << name << " from ldpath " << ldPath << "/" << frg::endlog;
 		fd = tryToOpen(path.data());
 		if(fd >= 0) {
 			chosenPath = std::move(path);
diff --git a/options/rtdl/generic/main.cpp b/options/rtdl/generic/main.cpp
index eb4a5923b7..6c58e301bd 100644
--- a/options/rtdl/generic/main.cpp
+++ b/options/rtdl/generic/main.cpp
@@ -213,8 +213,23 @@ static void parseLibraryPaths(frg::string_view paths) {
 			s = paths.size();
 		}
 
-		libraryPaths->push_back(paths.sub_string(p, s - p));
+		auto ldPath = paths.sub_string(p, s - p);
 		p = s + 1;
+
+		if(ldPath.size() == 0)
+			continue;
+
+		if(ldPath.ends_with("/")) {
+			size_t i = ldPath.size() - 1;
+			while(i > 0 && ldPath[i] == '/')
+				i--;
+			ldPath = ldPath.sub_string(0, i + 1);
+		}
+
+		if(ldPath == "/")
+			ldPath = "";
+
+		libraryPaths->push_back(ldPath);
 	}
 }
 
@@ -316,10 +331,10 @@ extern "C" void *interpreterMain(uintptr_t *entry_stack) {
 	aux++;
 
 	// Add default library paths
-	libraryPaths->push_back("/lib/");
-	libraryPaths->push_back("/lib64/");
-	libraryPaths->push_back("/usr/lib/");
-	libraryPaths->push_back("/usr/lib64/");
+	libraryPaths->push_back("/lib");
+	libraryPaths->push_back("/lib64");
+	libraryPaths->push_back("/usr/lib");
+	libraryPaths->push_back("/usr/lib64");
 
 	// Parse the actual vector.
 	while(true) {