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[Qemu-devel] [PATCH V3 3/3] linux-user: make host_to_target_cmsg support
From: |
Jing Huang |
Subject: |
[Qemu-devel] [PATCH V3 3/3] linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type |
Date: |
Sat, 21 Jul 2012 01:30:54 +0000 |
Signed-off-by: Jing Huang <address@hidden>
---
linux-user/syscall.c | 15 +++++++++++--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2228b1f..7521746 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1350,8 +1350,17 @@ static inline abi_long host_to_target_cmsg(struct
target_msghdr *target_msgh,
target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));
if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type !=
SCM_RIGHTS) {
- gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level,
cmsg->cmsg_type);
- memcpy(target_data, data, len);
+ if ((cmsg->cmsg_type == SO_TIMESTAMP) &&
+ (len == sizeof(struct timeval))) {
+ /* copy struct timeval to target */
+ struct timeval *tv = (struct timeval *)data;
+ struct timeval *target_tv = (struct timeval *)target_data;
+
+ tv->tv_sec = tswap32(target_tv->tv_sec);
+ tv->tv_usec = tswap32(target_tv->tv_usec);
+ } else {
+ gemu_log("Unsupported ancillary data: %d/%d\n",
+ cmsg->cmsg_level, cmsg->cmsg_type);
+ memcpy(target_data, data, len);
+ }
} else {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
--
1.7.8.6
- [Qemu-devel] [PATCH V3 3/3] linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type,
Jing Huang <=