zig

commit 4ea1aaf7982b9dcb3388058f3113de2856192575 (tree)
parent e7a418e13155cf2568c6b64d9d51ad61db8dd37b
Author: Andrew Kelley <andrew@ziglang.org>
Date:   Wed, 10 Jun 2026 21:28:36 -0700

std.Io.net: use the appropriate error code

Previous commit fixed the crash but used this error code:

```
/// The interface name is longer than the host operating system supports.
NameTooLong,
```

More appropriate error code based on the documentation is:

```
/// If this is returned, more detailed diagnostics can be obtained by
/// calling the `Parsed.init` function.
ParseFailed,
```

Diffstat:
M
lib/std/Io/net.zig
 | 
4
++--
M
lib/std/Io/net/test.zig
 | 
2
+-

2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/lib/std/Io/net.zig b/lib/std/Io/net.zig
@@ -512,7 +512,7 @@ pub const Ip6Address = struct {
             // Has to be u16 elements to handle 3-digit hex numbers from compression.
             var parts: [8]u16 = @splat(0);
             var parts_i: u8 = 0;
-            var text_i: usize = 0;
+            var text_i: u8 = 0;
             var digit_i: u8 = 0;
             var compress_start: ?u8 = null;
             var interface_name_text: ?[]const u8 = null;
@@ -576,7 +576,7 @@ pub const Ip6Address = struct {
                         const name = text[text_i..];
                         if (name.len == 0) return .incomplete;
                         interface_name_text = name;
-                        text_i = text.len;
+                        text_i = std.math.cast(u8, text.len) orelse return .{ .overflow = text.len };
                         continue :state .end;
                     },
                     else => return .{ .invalid_byte = text_i },
diff --git a/lib/std/Io/net/test.zig b/lib/std/Io/net/test.zig
@@ -94,7 +94,7 @@ test "invalid but parseable IPv6 scope ids" {
 
 test "oversized IPv6 scope id" {
     const long_scope: [256]u8 = @splat('a');
-    try testing.expectError(error.NameTooLong, net.IpAddress.resolveIp6(testing.io, "ff01::fb%" ++ &long_scope, 0));
+    try testing.expectError(error.ParseFailed, net.IpAddress.resolveIp6(testing.io, "ff01::fb%" ++ &long_scope, 0));
 }
 
 test "parse and render IPv4 addresses" {