user: 这段汇编代码用C语言表示是什么样的:

```asm
<main>:
  endbr64
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    D87(%rip),%rdi
  call   <getenv@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L4
L5:
  mov    %rbx,%rdx
  lea    D122(%rip),%rsi
  lea    D40(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %rbx,%rdi
  call   <XOpenDisplay@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L77
L85:
  lea    0x4(%rsp),%rdx
  mov    %rdx,%r8
  mov    %rdx,%rcx
  lea    D106(%rip),%rsi
  mov    %rbx,%rdi
  call   <XQueryExtension@plt>
  test   %eax,%eax
  je     L57
L53:
  lea    D164(%rip),%rsi
  lea    D41(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x4(%rsp),%rdx
  mov    %rdx,%r8
  mov    %rdx,%rcx
  lea    D107(%rip),%rsi
  mov    %rbx,%rdi
  call   <XQueryExtension@plt>
  test   %eax,%eax
  jne    L51
  lea    D123(%rip),%rsi
  lea    D66(%rip),%rdi
  call   <printf@plt>
L79:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L63
  mov    $0x0,%eax
  add    $0x10,%rsp
  pop    %rbx
  ret
L4:
  lea    D122(%rip),%rsi
  lea    D82(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L5
L77:
  lea    D122(%rip),%rsi
  lea    D84(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L85
L57:
  lea    D164(%rip),%rsi
  lea    D131(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L53
L51:
  lea    D123(%rip),%rsi
  lea    D41(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L79
L63:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D87
type: string
name: extract_symbolic_data
arguments: data_label: D122
type: string
name: extract_symbolic_data
arguments: data_label: D40
type: string
name: extract_symbolic_data
arguments: data_label: D106
type: string
name: extract_symbolic_data
arguments: data_label: D164
type: string
name: extract_symbolic_data
arguments: data_label: D41
type: string
name: extract_symbolic_data
arguments: data_label: D107
type: string
name: extract_symbolic_data
arguments: data_label: D123
type: string
name: extract_symbolic_data
arguments: data_label: D66
type: string
name: extract_symbolic_data
arguments: data_label: D82
type: string
name: extract_symbolic_data
arguments: data_label: D84
type: string
name: extract_symbolic_data
arguments: data_label: D131
type: string

tool: D87: DISPLAY

tool: D122: X display

tool: D40: info:  %s:	%s


tool: D106: GLX

tool: D164: X Ext. "GLX"

tool: D41: info:  %s:	present


tool: D107: NV-GLX

tool: D123: X Ext. "NV-GLX"

tool: D66: info:  %s:	not present; OK for non-nVidia drivers


tool: D82: fatal: %s:	DISPLAY not set


tool: D84: fatal: %s:	failed to open connection


tool: D131: fatal: %s:	not present; see the Xorg log for details


assistant: ```c
int main(int argc, char *argv[]) {
  const char *msg1 = "X display";
  char *dpyname = getenv("DISPLAY");
  if (!dpyname)
    ({
      printf("fatal: %s:\t"
             "DISPLAY not set"
             "\n",
             msg1);
      exit(1);
    });
  printf("info:  %s:\t"
         "%s"
         "\n",
         msg1, dpyname);
  Display *dpy = XOpenDisplay(dpyname);
  if (!dpy)
    ({
      printf("fatal: %s:\t"
             "failed to open connection"
             "\n",
             msg1);
      exit(1);
    });
  msg1 = "X Ext. \"GLX\"";
  int dummy;
  if (!XQueryExtension(dpy, "GLX", &dummy, &dummy, &dummy))
    ({
      printf("fatal: %s:\t"
             "not present; see the Xorg log for details"
             "\n",
             msg1);
      exit(1);
    });
  printf("info:  %s:\t"
         "present"
         "\n",
         msg1);
  msg1 = "X Ext. \"NV-GLX\"";
  if (!XQueryExtension(dpy, "NV-GLX", &dummy, &dummy, &dummy))
    printf("info:  %s:\t"
           "not present; OK for non-nVidia drivers"
           "\n",
           msg1);
  else
    printf("info:  %s:\t"
           "present"
           "\n",
           msg1);
  return 0;
}
```