From: Stacey Son <sson@FreeBSD.org>

Add host_to_target_msqid_ds() to convert host struct msqid_ds to target
format for msgctl(2) IPC_STAT operations.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Brooks Davis <brooks@one-eyed-alien.net>
Signed-off-by: Sean Bruno <sbruno@FreeBSD.org>
Signed-off-by: Mikael Urankar <mikael.urankar@gmail.com>
Signed-off-by: Warner Losh <imp@bsdimp.com>
---
 bsd-user/bsd-misc.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c
index 62362e8204..6163b7ccf8 100644
--- a/bsd-user/bsd-misc.c
+++ b/bsd-user/bsd-misc.c
@@ -177,3 +177,30 @@ abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
 
     return 0;
 }
+
+abi_long host_to_target_msqid_ds(abi_ulong target_addr,
+        struct msqid_ds *host_md)
+{
+    struct target_msqid_ds *target_md;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) {
+        return -TARGET_EFAULT;
+    }
+
+    memset(target_md, 0, sizeof(struct target_msqid_ds));
+    host_to_target_ipc_perm__locked(&target_md->msg_perm,
+                                    &host_md->msg_perm);
+
+    /* msg_first and msg_last are not used by IPC_SET/IPC_STAT in kernel. */
+    __put_user(target_md->msg_cbytes, &host_md->msg_cbytes);
+    __put_user(target_md->msg_qnum, &host_md->msg_qnum);
+    __put_user(target_md->msg_qbytes, &host_md->msg_qbytes);
+    __put_user(target_md->msg_lspid, &host_md->msg_lspid);
+    __put_user(target_md->msg_lrpid, &host_md->msg_lrpid);
+    __put_user(target_md->msg_stime, &host_md->msg_stime);
+    __put_user(target_md->msg_rtime, &host_md->msg_rtime);
+    __put_user(target_md->msg_ctime, &host_md->msg_ctime);
+    unlock_user_struct(target_md, target_addr, 1);
+
+    return 0;
+}

-- 
2.52.0

On 2/9/26 05:26, Warner Losh wrote:
> From: Stacey Son<sson@FreeBSD.org>
> 
> Add host_to_target_msqid_ds() to convert host struct msqid_ds to target
> format for msgctl(2) IPC_STAT operations.
> 
> Signed-off-by: Stacey Son<sson@FreeBSD.org>
> Signed-off-by: Brooks Davis<brooks@one-eyed-alien.net>
> Signed-off-by: Sean Bruno<sbruno@FreeBSD.org>
> Signed-off-by: Mikael Urankar<mikael.urankar@gmail.com>
> Signed-off-by: Warner Losh<imp@bsdimp.com>
> ---
>   bsd-user/bsd-misc.c | 27 +++++++++++++++++++++++++++
>   1 file changed, 27 insertions(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~