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linux-user: Use safe_syscall wrapper for send* and recv* syscalls 

Use the safe_syscall wrapper for the send, sendto, sendmsg, recv,
recvfrom and recvmsg syscalls.

RV: adjusted to apply
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Peter Maydell 2016-06-06 19:58:04 +01:00 committed by Riku Voipio
parent 2a3c761928
commit 666875306e
1 changed files with 13 additions and 6 deletions
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19
linux-user/syscall.c
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@ -716,6 +716,12 @@ safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
socklen_t, addrlen)
safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
static inline int host_to_target_sock_type(int host_type)
{
@ -2910,10 +2916,10 @@ static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
ret = target_to_host_cmsg(&msg, msgp);
}
if (ret == 0) {
ret = get_errno(sendmsg(fd, &msg, flags));
ret = get_errno(safe_sendmsg(fd, &msg, flags));
}
} else {
ret = get_errno(recvmsg(fd, &msg, flags));
ret = get_errno(safe_recvmsg(fd, &msg, flags));
if (!is_error(ret)) {
len = ret;
if (fd_trans_host_to_target_data(fd)) {
@ -3162,9 +3168,9 @@ static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
unlock_user(host_msg, msg, 0);
return ret;
}
ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
} else {
ret = get_errno(send(fd, host_msg, len, flags));
ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
}
unlock_user(host_msg, msg, 0);
return ret;
@ -3193,10 +3199,11 @@ static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
goto fail;
}
addr = alloca(addrlen);
ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
addr, &addrlen));
} else {
addr = NULL; /* To keep compiler quiet. */
ret = get_errno(qemu_recv(fd, host_msg, len, flags));
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
}
if (!is_error(ret)) {
if (target_addr) {