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-rw-r--r--pfinet/socket-ops.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/pfinet/socket-ops.c b/pfinet/socket-ops.c
index e01ce2e3..77ae3599 100644
--- a/pfinet/socket-ops.c
+++ b/pfinet/socket-ops.c
@@ -378,9 +378,11 @@ S_socket_getopt (struct sock_user *user,
__mutex_lock (&global_lock);
become_task (user);
+ int len = *datalen;
err = - (level == SOL_SOCKET ? sock_getsockopt
: *user->sock->ops->getsockopt)
- (user->sock, level, option, *data, datalen);
+ (user->sock, level, option, *data, &len);
+ *datalen = len;
__mutex_unlock (&global_lock);