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[Qemu-devel] [PULL v2 03/22] linux-user: Fix mq_open() syscall support
From: |
riku . voipio |
Subject: |
[Qemu-devel] [PULL v2 03/22] linux-user: Fix mq_open() syscall support |
Date: |
Tue, 18 Oct 2016 16:21:31 +0300 |
From: Aleksandar Markovic <address@hidden>
Conversion of file creation flags (O_CREAT, ...) from target to host
was missing.
Also, this patch implements better error handling.
Signed-off-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>
---
linux-user/syscall.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 88007e0..e031ecf 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -11476,16 +11476,18 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
arg1,
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
case TARGET_NR_mq_open:
{
- struct mq_attr posix_mq_attr, *attrp;
+ struct mq_attr posix_mq_attr;
+ int host_flags;
+ host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
+ if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
+ goto efault;
+ }
p = lock_user_string(arg1 - 1);
- if (arg4 != 0) {
- copy_from_user_mq_attr (&posix_mq_attr, arg4);
- attrp = &posix_mq_attr;
- } else {
- attrp = 0;
+ if (!p) {
+ goto efault;
}
- ret = get_errno(mq_open(p, arg2, arg3, attrp));
+ ret = get_errno(mq_open(p, host_flags, arg3, &posix_mq_attr));
unlock_user (p, arg1, 0);
}
break;
--
2.1.4
- [Qemu-devel] [PULL v2 00/22] linux-user changes, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 03/22] linux-user: Fix mq_open() syscall support,
riku . voipio <=
- [Qemu-devel] [PULL v2 04/22] linux-user: Fix msgrcv() and msgsnd() syscalls support, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 02/22] linux-user: Add support for ustat() syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 01/22] linux-user: Add support for adjtimex() syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 07/22] linux-user: Remove a duplicate item from strace.list, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 05/22] linux-user: Fix socketcall() syscall support, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 11/22] linux-user: Don't use alloca() for epoll_wait's epoll event array, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 08/22] linux-user: sparc64: Use correct target SHMLBA in shmat(), riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 12/22] linux-user: use libc wrapper instead of direct mremap syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 13/22] linux-user: Fix definition of target_sigevent for 32-bit guests, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 09/22] linux-user: add kcmp() syscall, riku . voipio, 2016/10/18