From 2356aba27b3d5d587a68dab978e84327fa53e674 Mon Sep 17 00:00:00 2001
From: Zurisen <carlosmarctor@gmail.com>
Date: Thu, 8 Oct 2026 20:50:09 +0200
Subject: [PATCH] fix(net): report EPIPE for a send after shutdown on Windows

Winsock fails send, sendto and sendmsg on a socket shut down for writing
with WSAESHUTDOWN, which neither Windows error map handled, so libkernel
and libSceNet reported EIO. FreeBSD reports EPIPE there, and the Linux
maps already translate the host's EPIPE to 32. Map WSAESHUTDOWN to 32
in both.
---
 core/libs/prx/libSceNet/Export.cpp         | 1 +
 core/libs/prx/libkernel/Socket/src/Udp.cpp | 1 +
 core/libs/tests/GuestSceNet.cpp            | 3 +++
 core/libs/tests/GuestTcp.cpp               | 3 +++
 4 files changed, 8 insertions(+)

diff --git a/core/libs/prx/libSceNet/Export.cpp b/core/libs/prx/libSceNet/Export.cpp
index 05a06ea00..0fc883a57 100644
--- a/core/libs/prx/libSceNet/Export.cpp
+++ b/core/libs/prx/libSceNet/Export.cpp
@@ -112,6 +112,7 @@ int native_error() {
         case WSAEINTR: return 4;
         case WSAEINVAL: return NET_EINVAL;
         case WSAENOTSOCK: return NET_ENOTSOCK;
+        case WSAESHUTDOWN: return 32;
         default: return 5;
     }
 }
diff --git a/core/libs/prx/libkernel/Socket/src/Udp.cpp b/core/libs/prx/libkernel/Socket/src/Udp.cpp
index 1e52e3daf..4699b8be0 100644
--- a/core/libs/prx/libkernel/Socket/src/Udp.cpp
+++ b/core/libs/prx/libkernel/Socket/src/Udp.cpp
@@ -67,6 +67,7 @@ int NativeError() {
         case WSAECONNREFUSED: return 61;
         case WSAEINTR: return 4;
         case WSAEINVAL: return 22;
+        case WSAESHUTDOWN: return 32;
         default: return 5;
     }
 #else
diff --git a/core/libs/tests/GuestSceNet.cpp b/core/libs/tests/GuestSceNet.cpp
index 46e6c8abc..9e7131bbd 100644
--- a/core/libs/tests/GuestSceNet.cpp
+++ b/core/libs/tests/GuestSceNet.cpp
@@ -25,6 +25,7 @@ std::int64_t APS5_VABI sceNetRecv(int, void*, std::size_t, int);
 std::int64_t APS5_VABI sceNetSendto(int, const void*, std::size_t, int, const void*, std::uint32_t);
 std::int64_t APS5_VABI sceNetRecvfrom(int, void*, std::size_t, int, void*, std::uint32_t*);
 int APS5_VABI sceNetSocketClose(int);
+int APS5_VABI sceNetShutdown(int, int);
 int APS5_VABI sceNetSetsockopt(int, int, int, const void*, std::uint32_t);
 int* APS5_VABI sceNetErrnoLoc(void);
 int APS5_VABI sceNetEpollCreate(const char*, int);
@@ -279,6 +280,8 @@ int main() {
     Require(sceNetSend(client, request, sizeof(request), 0) == sizeof(request));
     ready = {};
     Require(sceNetEpollWait(epoll, &ready, 1, 1000000) == 1 && (ready.events & 1) && ready.ident == static_cast<std::uint64_t>(accepted));
+    Require(sceNetShutdown(accepted, 1) == 0);
+    Require(Failed(sceNetSend(accepted, request, sizeof(request), 0), 32));
     Require(sceNetEpollDestroy(epoll) == 0);
     Require(sceNetSocketClose(accepted) == 0);
     bool send_failed = false;
diff --git a/core/libs/tests/GuestTcp.cpp b/core/libs/tests/GuestTcp.cpp
index f82ec5ab4..d1f70d97d 100644
--- a/core/libs/tests/GuestTcp.cpp
+++ b/core/libs/tests/GuestTcp.cpp
@@ -14,6 +14,7 @@ int APS5_VABI accept_nid_postfix(int, void*, std::uint32_t*);
 std::int64_t APS5_VABI send_nid_postfix(int, const void*, std::uint64_t, int);
 std::int64_t APS5_VABI recv_nid_postfix(int, void*, std::uint64_t, int);
 int APS5_VABI getpeername_nid_postfix(int, void*, std::uint32_t*);
+int APS5_VABI shutdown_nid_postfix(int, int);
 int APS5_VABI close_nid_postfix(int);
 int* APS5_VABI __error_nid_postfix();
 }
@@ -53,6 +54,8 @@ int main() {
     Require(send_nid_postfix(client, request, sizeof(request), 0x20000) == sizeof(request));
     Require(recv_nid_postfix(accepted, received, sizeof(received), 0) == sizeof(received));
     Require(std::strcmp(request, received) == 0);
+    Require(shutdown_nid_postfix(client, 1) == 0);
+    Require(send_nid_postfix(client, request, sizeof(request), 0x20000) == -1 && *__error_nid_postfix() == 32);
 
     Require(close_nid_postfix(accepted) == 0);
 #ifndef _WIN32