[PULL 15/22] linux-user: Fix SO_ERROR return code of getsockopt()

[Laurent Vivier]

From: Helge Deller <deller@gmx.de>

Add translation for the host error return code of:
    getsockopt(19, SOL_SOCKET, SO_ERROR, [ECONNREFUSED], [4]) = 0

This fixes the testsuite of the cockpit debian package with a
hppa-linux guest on a x86-64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y9QzNzXg0hrzHQeo@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 210db5f0be94..1c42df651801 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2758,8 +2758,13 @@ get_timeout:
         ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
         if (ret < 0)
             return ret;
-        if (optname == SO_TYPE) {
+        switch (optname) {
+        case SO_TYPE:
             val = host_to_target_sock_type(val);
+            break;
+        case SO_ERROR:
+            val = host_to_target_errno(val);
+            break;
         }
         if (len > lv)
             len = lv;
-- 
2.39.1