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[91.157.170.157]) by smtp.gmail.com with ESMTPSA id 201sm9535359ljf.48.2016.10.18.06.21.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 18 Oct 2016 06:21:55 -0700 (PDT) From: riku.voipio@linaro.org To: qemu-devel@nongnu.org Date: Tue, 18 Oct 2016 16:21:31 +0300 Message-Id: <634dff4055269f650de46d9f0b46ce940764d440.1476796525.git.riku.voipio@linaro.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2a00:1450:4010:c07::22d Subject: [Qemu-devel] [PULL v2 03/22] linux-user: Fix mq_open() syscall support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Aleksandar Markovic Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Aleksandar Markovic 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 Signed-off-by: Riku Voipio --- 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;