DivestOS/Patches/LineageOS-20.0/android_packages_modules_DnsResolver/0002-hosts_toggle.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tad <tad@spotco.us>
Date: Wed, 20 Apr 2022 00:40:53 -0400
Subject: [PATCH] Add a toggle to disable /etc/hosts lookup
Signed-off-by: Tad <tad@spotco.us>
Change-Id: Iea165003474e1107dc77980985bf9928c369dbb5
---
getaddrinfo.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/getaddrinfo.cpp b/getaddrinfo.cpp
index d854293..4760f7f 100644
--- a/getaddrinfo.cpp
+++ b/getaddrinfo.cpp
@@ -57,6 +57,7 @@
#include <future>
#include <android-base/logging.h>
+#include <android-base/properties.h>
#include "Experiments.h"
#include "netd_resolv/resolv.h"
@@ -1556,6 +1557,9 @@ static struct addrinfo* getCustomHosts(const size_t netid, const char* _Nonnull
static bool files_getaddrinfo(const size_t netid, const char* name, const addrinfo* pai,
addrinfo** res) {
+ if ((android::base::GetIntProperty("persist.security.hosts_disable", 0) != 0) && (strcmp("localhost", name) != 0) && (strcmp("ip6-localhost", name) != 0))
+ return false;
+
struct addrinfo sentinel = {};
struct addrinfo *p, *cur;
FILE* hostf = nullptr;