user: What would the C source look like for the assembly code provided here?

```asm
<asctime_r>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x20(%rbp),%rax
  lea    D16(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  mov    -0x18(%rbp),%rax
  mov    (%rax),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  lea    D25(%rip),%rdx
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rax),%edx
  mov    -0x20(%rbp),%rax
  mov    %dl,(%rax)
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x20(%rbp),%rdx
  add    $0x1,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x20(%rbp),%rax
  lea    0x2(%rax),%rdx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x18(%rbp),%rax
  mov    0x4(%rax),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  lea    D22(%rip),%rdx
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x20(%rbp),%rdx
  add    $0x4,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x20(%rbp),%rdx
  add    $0x5,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x20(%rbp),%rax
  lea    0x6(%rax),%rdx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x18(%rbp),%rax
  mov    0x8(%rax),%eax
  mov    -0x20(%rbp),%rdx
  add    $0x8,%rdx
  mov    %eax,%esi
  mov    %rdx,%rdi
  call   <ct_numb@plt>
  mov    -0x18(%rbp),%rax
  mov    0xc(%rax),%eax
  lea    0x64(%rax),%edx
  mov    -0x20(%rbp),%rax
  add    $0xb,%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ct_numb@plt>
  mov    -0x18(%rbp),%rax
  mov    0x10(%rax),%eax
  lea    0x64(%rax),%edx
  mov    -0x20(%rbp),%rax
  add    $0xe,%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ct_numb@plt>
  mov    -0x18(%rbp),%rax
  mov    0x14(%rax),%eax
  lea    0x64(%rax),%edx
  mov    -0x20(%rbp),%rax
  add    $0x11,%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ct_numb@plt>
  mov    -0x18(%rbp),%rax
  mov    0x18(%rax),%eax
  cmp    $0x63,%eax
  jle    L5
  mov    -0x20(%rbp),%rax
  add    $0x14,%rax
  movb   $0x32,(%rax)
  mov    -0x20(%rbp),%rax
  add    $0x15,%rax
  movb   $0x30,(%rax)
L5:
  mov    -0x18(%rbp),%rax
  mov    0x18(%rax),%eax
  lea    0x64(%rax),%edx
  mov    -0x20(%rbp),%rax
  add    $0x16,%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ct_numb@plt>
  mov    -0x20(%rbp),%rax
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D16
type: string
name: extract_symbolic_data
arguments: data_label: D25
type: string
name: extract_symbolic_data
arguments: data_label: D22
type: string

tool: D16: Thu Jan 01 00:00:00 1970


tool: D25: SunMonTueWedThuFriSat

tool: D22: JanFebMarAprMayJunJulAugSepOctNovDec

assistant: ```c
char *asctime_r(const struct tm *t, char *buf) {
  char *ncp;
  strcpy(buf, "Thu Jan 01 00:00:00 1970\n");
  ncp = &"SunMonTueWedThuFriSat"[t->tm_wday * 3];
  buf[0] = *ncp++;
  buf[1] = *ncp++;
  buf[2] = *ncp;
  ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[t->tm_mon * 3];
  buf[4] = *ncp++;
  buf[5] = *ncp++;
  buf[6] = *ncp;
  ct_numb(buf + 8, t->tm_mday);
  ct_numb(buf + 11, t->tm_hour + 100);
  ct_numb(buf + 14, t->tm_min + 100);
  ct_numb(buf + 17, t->tm_sec + 100);
  if (t->tm_year >= 100) {
    buf[20] = '2';
    buf[21] = '0';
  }
  ct_numb(buf + 22, t->tm_year + 100);
  return buf;
}
```