path: root/linux-user
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authorPetar Jovanovic <petar.jovanovic@imgtec.com>2014-03-31 17:41:23 +0200
committerRiku Voipio <riku.voipio@linaro.org>2014-04-01 09:17:19 +0300
commitd25295d4efc53bf8521adf967445b8d087fe8d39 (patch)
treebcf27aa257988fd4d70280f989b8e9028796b8e8 /linux-user
parent63678e17cf399ff81b93417fe7bee8d6ef6b6b1b (diff)
linux-user: pass correct host flags to accept4()
Flags NONBLOCK and CLOEXEC can have different values on the host and the guest, so set correct host values before calling accept4(). This fixes several issues with accept4 system call and user-mode of QEMU. Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user')
1 files changed, 5 insertions, 2 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2eac6d5aa9..9864813b7a 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2062,9 +2062,12 @@ static abi_long do_accept4(int fd, abi_ulong target_addr,
socklen_t addrlen;
void *addr;
abi_long ret;
+ int host_flags;
+ host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
if (target_addr == 0) {
- return get_errno(accept4(fd, NULL, NULL, flags));
+ return get_errno(accept4(fd, NULL, NULL, host_flags));
/* linux returns EINVAL if addrlen pointer is invalid */
@@ -2080,7 +2083,7 @@ static abi_long do_accept4(int fd, abi_ulong target_addr,
addr = alloca(addrlen);
- ret = get_errno(accept4(fd, addr, &addrlen, flags));
+ ret = get_errno(accept4(fd, addr, &addrlen, host_flags));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
if (put_user_u32(addrlen, target_addrlen_addr))