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| author | Jing Huang <jing.huang.pku@gmail.com> | 2012-07-24 13:58:02 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2012-08-14 20:26:55 +0100 |
| commit | ca6190673c90e283897740b243f6508055c9de5a (patch) | |
| tree | 61a601450173f0db7f8159d2cb8f55ffaef5c065 /linux-user/syscall.c | |
| parent | dd6e957a142d9582df766b5c6de2fbb6773241f2 (diff) | |
| download | qemu-ca6190673c90e283897740b243f6508055c9de5a.zip | |
linux-user: pass sockaddr from host to target
Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 8a06131166..4bc11f186d 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -1268,7 +1268,6 @@ static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, return 0; } -/* ??? Should this also swap msgh->name? */ static inline abi_long target_to_host_cmsg(struct msghdr *msgh, struct target_msghdr *target_msgh) { @@ -1325,7 +1324,6 @@ static inline abi_long target_to_host_cmsg(struct msghdr *msgh, return 0; } -/* ??? Should this also swap msgh->name? */ static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, struct msghdr *msgh) { @@ -1885,10 +1883,22 @@ static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, if (!is_error(ret)) { len = ret; ret = host_to_target_cmsg(msgp, &msg); - if (!is_error(ret)) + if (!is_error(ret)) { + msgp->msg_namelen = tswap32(msg.msg_namelen); + if (msg.msg_name != NULL) { + ret = host_to_target_sockaddr(tswapal(msgp->msg_name), + msg.msg_name, msg.msg_namelen); + if (ret) { + goto out; + } + } + ret = len; + } } } + +out: unlock_iovec(vec, target_vec, count, !send); unlock_user_struct(msgp, target_msg, send ? 0 : 1); return ret; |