user: Demonstrate the C code that generates the assembly output below:

```asm
<recv_fd>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x1b0,%rsp
  mov    %edi,-0x1a4(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movq   $0x0,-0x180(%rbp)
  movq   $0x0,-0x178(%rbp)
  movq   $0x0,-0x170(%rbp)
  movq   $0x0,-0x168(%rbp)
  movq   $0x0,-0x160(%rbp)
  movq   $0x0,-0x124(%rbp)
  movw   $0x0,-0x11c(%rbp)
  movq   $0x0,-0x11a(%rbp)
  movw   $0x0,-0x112(%rbp)
  lea    -0x124(%rbp),%rax
  mov    %rax,-0x150(%rbp)
  movl   $0x3,-0x148(%rbp)
  lea    -0x11a(%rbp),%rax
  mov    %rax,-0x140(%rbp)
  movl   $0x3,-0x128(%rbp)
  lea    -0x150(%rbp),%rax
  mov    %rax,-0x168(%rbp)
  movl   $0x2,-0x180(%rbp)
  lea    -0x110(%rbp),%rax
  mov    %rax,-0x178(%rbp)
  movl   $0x100,-0x170(%rbp)
  lea    -0x180(%rbp),%rcx
  mov    -0x1a4(%rbp),%eax
  mov    $0x0,%edx
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <recvmsg@plt>
  test   %rax,%rax
  jns    L16
  lea    D20(%rip),%rax
  mov    %rax,%rdi
  call   <err_syserr@plt>
L16:
  lea    -0x180(%rbp),%rax
  mov    %rax,%rdi
  call   <CMSG_FIRSTHDR@plt>
  mov    %rax,-0x190(%rbp)
  mov    -0x190(%rbp),%rax
  mov    %rax,%rdi
  call   <CMSG_DATA@plt>
  mov    %rax,-0x188(%rbp)
  lea    D2(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <err_remark@plt>
  mov    -0x188(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x194(%rbp)
  mov    -0x194(%rbp),%eax
  mov    %eax,%esi
  lea    D27(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <err_remark@plt>
  lea    -0x124(%rbp),%rax
  mov    %rax,%rsi
  lea    D25(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <err_remark@plt>
  lea    -0x11a(%rbp),%rax
  mov    %rax,%rsi
  lea    D42(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <err_remark@plt>
  mov    -0x194(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L7
  call   <__stack_chk_fail@plt>
L7:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D20
data_type: string
name: extract_symbolic_data
arguments: data_label: D2
data_type: string
name: extract_symbolic_data
arguments: data_label: D27
data_type: string
name: extract_symbolic_data
arguments: data_label: D25
data_type: string
name: extract_symbolic_data
arguments: data_label: D42
data_type: string

tool: D20: Failed to receive message


tool: D2: About to extract fd


tool: D27: Extracted fd %d


tool: D25: Extracted buf1 %s


tool: D42: Extracted buf2 %s


assistant: ```c
int recv_fd(int socket) {
  struct msghdr msg = {0};
  char m_buffer[256];
  char buf1[10] = {0};
  char buf2[10] = {0};
  struct iovec io[2];
  io[0].iov_base = buf1;
  io[0].iov_len = 3;
  io[1].iov_base = buf2;
  io[2].iov_len = 3;
  msg.msg_iov = io;
  msg.msg_iovlen = 2;
  char c_buffer[256];
  msg.msg_control = c_buffer;
  msg.msg_controllen = sizeof(c_buffer);
  if (recvmsg(socket, &msg, 0) < 0)
    err_syserr("Failed to receive message\n");
  struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
  void *data = CMSG_DATA(cmsg);
  err_remark("About to extract fd\n");
  int fd = *((int *)data);
  err_remark("Extracted fd %d\n", fd);
  err_remark("Extracted buf1 %s\n", buf1);
  err_remark("Extracted buf2 %s\n", buf2);
  return fd;
}
```