From: Helge Deller <deller@gmx.de>

Translate host error codes of IP_RECVERR and IPV6_RECVERR control messages to
target error codes before returning to the caller.
For example, this is important for architectures (e.g. hppa, alpha, sparc,
mips) on which the value of ECONNREFUSED is different to the value on a x86_64
host.

Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/602
Signed-off-by: Helge Deller <deller@gmx.de>
(cherry picked from commit 9667bf3249256788245c6ca07bc12106f3e4fa22)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 8934aa9514..bb818f35d9 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2011,7 +2011,8 @@ static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
                     tgt_len != sizeof(struct errhdr_t)) {
                     goto unimplemented;
                 }
-                __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
+                __put_user(host_to_target_errno(errh->ee.ee_errno),
+                           &target_errh->ee.ee_errno);
                 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
                 __put_user(errh->ee.ee_type,  &target_errh->ee.ee_type);
                 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
@@ -2065,7 +2066,8 @@ static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
                     tgt_len != sizeof(struct errhdr6_t)) {
                     goto unimplemented;
                 }
-                __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
+                __put_user(host_to_target_errno(errh->ee.ee_errno),
+                           &target_errh->ee.ee_errno);
                 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
                 __put_user(errh->ee.ee_type,  &target_errh->ee.ee_type);
                 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
-- 
2.47.3