From f505f508880dbdf24ac3163aeeade5127a7ccddb Mon Sep 17 00:00:00 2001
From: Muaz Ahmad <mahmad2000@protonmail.com>
Date: Tue, 14 May 2024 13:30:56 +0500
Subject: [PATCH] Remove interfaces since not needed for sockets and android
 requires root access for validation

---
 src/util.zig | 23 ++++-------------------
 1 file changed, 4 insertions(+), 19 deletions(-)

diff --git a/src/util.zig b/src/util.zig
index ffac4bb..f6324b9 100644
--- a/src/util.zig
+++ b/src/util.zig
@@ -6,13 +6,11 @@ const ArgError = error{
     NotEnoughArgs,
     BadDomain,
     InvalidAddressVer,
-    InterfaceRequired,
-    InvalidInterface,
     EnvVarNotSet,
     InvalidOldHostsPath,
 };
 
-pub const IP_VER_ENUM = enum(u3) {
+pub const IP_VER = enum(u3) {
     Both = 0,
     IPv4 = 4,
     IPv6 = 6,
@@ -30,11 +28,6 @@ pub fn merge_addrs(v4: IP, v6: IP) IP {
     };
 }
 
-pub const IPInfo = struct {
-    version: IP_VER_ENUM,
-    interface: ?[:0]const u8,
-};
-
 pub const Domain = struct {
     name: [:0]const u8,
     labels: [5][]const u8,
@@ -53,7 +46,7 @@ pub const cwd = std.fs.cwd();
 
 pub fn get_input() !struct {
     Domain,
-    IPInfo,
+    IP_VER,
 } {
     var args = std.process.args();
     _ = args.next(); // consume calling binary arg
@@ -62,17 +55,9 @@ pub fn get_input() !struct {
     const domain = try check_domain(domain_str);
 
     const ip_ver_str = args.next() orelse return ArgError.NotEnoughArgs;
-    const ip_ver = std.meta.intToEnum(IP_VER_ENUM, std.fmt.parseInt(u3, ip_ver_str, 10) catch return ArgError.InvalidAddressVer) catch return ArgError.InvalidAddressVer;
+    const ip_ver = std.meta.intToEnum(IP_VER, std.fmt.parseInt(u3, ip_ver_str, 10) catch return ArgError.InvalidAddressVer) catch return ArgError.InvalidAddressVer;
 
-    var iface: ?[:0]const u8 = null;
-    if (ip_ver != IP_VER_ENUM.IPv4) {
-        iface = args.next() orelse return ArgError.InterfaceRequired;
-        if (std.c.if_nametoindex(iface.?) == 0) {
-            return ArgError.InvalidInterface;
-        }
-    }
-
-    return .{ domain, IPInfo{ .version = ip_ver, .interface = iface } };
+    return .{ domain, ip_ver };
 }
 
 fn check_domain(domain_str: [:0]const u8) !Domain {