linux-user: support SO_{SND, RCV}BUFFORCE setsockopt options

Translate the SO_SNDBUFFORCE & SO_RCVBUFFORCE options to setsockopt to
the host values & perform the syscall as expected, allowing use of those
options by target programs.

Signed-off-by: Paul Burton <[email protected]>
Signed-off-by: Riku Voipio <[email protected]>

Author: paulburton

linux-user/syscall.c

@@ -1502,9 +1502,15 @@ static abi_long do_setsockopt(int sockfd, int level, int optname,
         case TARGET_SO_SNDBUF:
 		optname = SO_SNDBUF;
 		break;
+        case TARGET_SO_SNDBUFFORCE:
+                optname = SO_SNDBUFFORCE;
+                break;
         case TARGET_SO_RCVBUF:
 		optname = SO_RCVBUF;
 		break;
+        case TARGET_SO_RCVBUFFORCE:
+                optname = SO_RCVBUFFORCE;
+                break;
         case TARGET_SO_KEEPALIVE:
 		optname = SO_KEEPALIVE;
 		break;