[Qemu-devel] [PATCH] linux-user: implement getsockopt SO_RCVTIMEO and SO_SNDTIMEO

[Andreas Schwab <schwab@suse.de>]

Signed-off-by: Andreas Schwab <schwab@suse.de>
---
 linux-user/syscall.c | 36 ++++++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index d113a65831..ba5775a94e 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2171,10 +2171,42 @@ static abi_long do_getsockopt(int sockfd, int level, int optname,
         level = SOL_SOCKET;
         switch (optname) {
         /* These don't just return a single integer */
-        case TARGET_SO_RCVTIMEO:
-        case TARGET_SO_SNDTIMEO:
         case TARGET_SO_PEERNAME:
             goto unimplemented;
+        case TARGET_SO_RCVTIMEO: {
+            struct timeval tv;
+            socklen_t tvlen;
+
+            optname = SO_RCVTIMEO;
+
+get_timeout:
+            if (get_user_u32(len, optlen)) {
+                return -TARGET_EFAULT;
+            }
+            if (len < 0) {
+                return -TARGET_EINVAL;
+            }
+
+            tvlen = sizeof(tv);
+            ret = get_errno(getsockopt(sockfd, level, optname,
+                                       &tv, &tvlen));
+            if (ret < 0) {
+                return ret;
+            }
+            if (len > sizeof(struct target_timeval)) {
+                len = sizeof(struct target_timeval);
+            }
+            if (copy_to_user_timeval(optval_addr, &tv)) {
+                return -TARGET_EFAULT;
+            }
+            if (put_user_u32(len, optlen)) {
+                return -TARGET_EFAULT;
+            }
+            break;
+        }
+        case TARGET_SO_SNDTIMEO:
+            optname = SO_SNDTIMEO;
+            goto get_timeout;
         case TARGET_SO_PEERCRED: {
             struct ucred cr;
             socklen_t crlen;
-- 
2.21.0


-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."