From eb4bb43275fc47c3c6b96d20199aca75678d3c9d Mon Sep 17 00:00:00 2001
From: Justine Tunney <jtunney@gmail.com>
Date: Tue, 25 Aug 2020 09:33:11 -0700
Subject: [PATCH] Fix close() return code for Winsock

Thus fixing tool/net/dig.com on NT.
---
 libc/sock/closesocket-nt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libc/sock/closesocket-nt.c b/libc/sock/closesocket-nt.c
index f835c00cd..1d7297b3b 100644
--- a/libc/sock/closesocket-nt.c
+++ b/libc/sock/closesocket-nt.c
@@ -26,7 +26,11 @@
 textwindows int closesocket$nt(int fd) {
   int rc;
   if (!isfdkind(fd, kFdSocket)) return ebadf();
-  rc = __closesocket$nt(g_fds.p[fd].handle) ? 0 : winsockerr();
+  if (__closesocket$nt(g_fds.p[fd].handle) != -1) {
+    rc = 0;
+  } else {
+    rc = winsockerr();
+  }
   removefd(fd);
   return rc;
 }