From 4cdbde55b4b1adcd27be3b0a3d7c888e90df2399 Mon Sep 17 00:00:00 2001
From: Michael Dusan <michael.dusan@gmail.com>
Date: Mon, 2 Jan 2023 19:18:32 -0500
Subject: [PATCH] macos: getFdPath: handle E.NOSPC

- per darwin-xnu source, fcntl F_GETPATH will return ENOSPC when path
  exceeds either user-supplied buffer or system MAXPATHLEN
- macOS does not document this (and other) possible errno values
---
 lib/std/os.zig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/std/os.zig b/lib/std/os.zig
index b0884cef05..b5a541d191 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -5098,6 +5098,7 @@ pub fn getFdPath(fd: fd_t, out_buffer: *[MAX_PATH_BYTES]u8) RealPathError![]u8 {
             switch (errno(system.fcntl(fd, F.GETPATH, out_buffer))) {
                 .SUCCESS => {},
                 .BADF => return error.FileNotFound,
+                .NOSPC => return error.NameTooLong,
                 // TODO man pages for fcntl on macOS don't really tell you what
                 // errno values to expect when command is F.GETPATH...
                 else => |err| return unexpectedErrno(err),