From 57010cc44883a5434276cee956bc84a0485d2f32 Mon Sep 17 00:00:00 2001
From: Jarred Sumner <jarred@jarredsumner.com>
Date: Sun, 24 Sep 2023 03:17:19 -0700
Subject: [PATCH] Avoid using std.net.Address.parse (#5950)

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
---
 src/deps/c_ares.zig      |  2 +-
 src/string_immutable.zig | 36 ++++++++++++++++++------------------
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/src/deps/c_ares.zig b/src/deps/c_ares.zig
index 3c86b0327b366..14fcb79e89fc3 100644
--- a/src/deps/c_ares.zig
+++ b/src/deps/c_ares.zig
@@ -1252,7 +1252,7 @@ pub extern fn ares_set_servers_csv(channel: *Channel, servers: [*c]const u8) c_i
 pub extern fn ares_set_servers_ports_csv(channel: *Channel, servers: [*c]const u8) c_int;
 pub extern fn ares_get_servers(channel: *Channel, servers: *?*struct_ares_addr_port_node) c_int;
 pub extern fn ares_get_servers_ports(channel: *Channel, servers: *?*struct_ares_addr_port_node) c_int;
-pub extern fn ares_inet_ntop(af: c_int, src: ?*const anyopaque, dst: [*c]u8, size: ares_socklen_t) [*c]const u8;
+pub extern fn ares_inet_ntop(af: c_int, src: ?*const anyopaque, dst: [*c]u8, size: ares_socklen_t) ?[*:0]const u8;
 pub extern fn ares_inet_pton(af: c_int, src: [*c]const u8, dst: ?*anyopaque) c_int;
 pub const ARES_SUCCESS = 0;
 pub const ARES_ENODATA = 1;
diff --git a/src/string_immutable.zig b/src/string_immutable.zig
index 03ba35e66fdc3..8ecadad83ceb0 100644
--- a/src/string_immutable.zig
+++ b/src/string_immutable.zig
@@ -4676,30 +4676,30 @@ test "eqlCaseInsensitiveASCII" {
 }
 
 pub fn isIPAddress(input: []const u8) bool {
-    if (containsChar(input, ':'))
-        return true;
+    var max_ip_address_buffer: [512]u8 = undefined;
+    if (input.len > max_ip_address_buffer.len) return false;
 
-    if (comptime Environment.isWindows) {
-        return bun.todo(@src(), false);
-    }
+    var sockaddr: std.os.sockaddr = undefined;
+    @memset(std.mem.asBytes(&sockaddr), 0);
+    @memcpy(max_ip_address_buffer[0..input.len], input);
+    max_ip_address_buffer[input.len] = 0;
 
-    if (std.net.Address.resolveIp(input, 0)) |_| {
-        return true;
-    } else |_| {
-        return false;
-    }
+    var ip_addr_str: [:0]const u8 = max_ip_address_buffer[0.. :0];
+
+    return bun.c_ares.ares_inet_pton(std.os.AF.INET, ip_addr_str.ptr, &sockaddr) != 0 or bun.c_ares.ares_inet_pton(std.os.AF.INET6, ip_addr_str.ptr, &sockaddr) != 0;
 }
 
 pub fn isIPV6Address(input: []const u8) bool {
-    if (comptime Environment.isWindows) {
-        return bun.todo(@src(), false);
-    }
+    var max_ip_address_buffer: [512]u8 = undefined;
+    if (input.len > max_ip_address_buffer.len) return false;
 
-    if (std.net.Address.parseIp6(input, 0)) |_| {
-        return true;
-    } else |_| {
-        return false;
-    }
+    var sockaddr: std.os.sockaddr = undefined;
+    @memset(std.mem.asBytes(&sockaddr), 0);
+    @memcpy(max_ip_address_buffer[0..input.len], input);
+    max_ip_address_buffer[input.len] = 0;
+
+    var ip_addr_str: [:0]const u8 = max_ip_address_buffer[0.. :0];
+    return bun.c_ares.ares_inet_pton(std.os.AF.INET6, ip_addr_str.ptr, &sockaddr) != 0;
 }
 
 pub fn cloneNormalizingSeparators(