user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<now>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xa0,%rsp
  mov    %rdi,-0x98(%rbp)
  mov    %rsi,-0xa0(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x88(%rbp)
  movq   $0x0,-0x68(%rbp)
  movq   $0x0,-0x70(%rbp)
  cmpq   $0x0,-0x98(%rbp)
  je     L130
  cmpq   $0x0,-0xa0(%rbp)
  nop
L130:
  cmpq   $0x0,-0x98(%rbp)
  je     L78
  cmpq   $0x0,-0xa0(%rbp)
  je     L78
  mov    $0x1,%eax
  jmp    L88
L78:
  mov    $0x0,%eax
L88:
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0xa0(%rbp),%rdx
  mov    -0x98(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <mb_attempt_open_bracket@plt>
  mov    %eax,-0x84(%rbp)
  cmpl   $0x0,-0x84(%rbp)
  je     L24
  mov    -0x84(%rbp),%eax
  jmp    L34
L24:
  mov    -0xa0(%rbp),%rdx
  mov    -0x98(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <mb_has_arg@plt>
  test   %rax,%rax
  je     L117
  lea    -0x70(%rbp),%rdx
  mov    -0xa0(%rbp),%rcx
  mov    -0x98(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <mb_pop_string@plt>
  mov    %eax,-0x80(%rbp)
  cmpl   $0x0,-0x80(%rbp)
  je     L117
  mov    -0x80(%rbp),%eax
  jmp    L34
L117:
  mov    -0xa0(%rbp),%rdx
  mov    -0x98(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <mb_attempt_close_bracket@plt>
  mov    %eax,-0x7c(%rbp)
  cmpl   $0x0,-0x7c(%rbp)
  je     L61
  mov    -0x7c(%rbp),%eax
  jmp    L34
L61:
  lea    -0x8c(%rbp),%rax
  mov    %rax,%rdi
  call   <time@plt>
  lea    -0x8c(%rbp),%rax
  mov    %rax,%rdi
  call   <localtime@plt>
  mov    %rax,-0x68(%rbp)
  mov    -0x70(%rbp),%rax
  test   %rax,%rax
  je     L101
  mov    -0x70(%rbp),%rdx
  mov    -0x68(%rbp),%rcx
  lea    -0x60(%rbp),%rax
  mov    $0x50,%esi
  mov    %rax,%rdi
  call   <strftime@plt>
  lea    -0x60(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  lea    0x1(%rax),%edx
  lea    -0x60(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <mb_memdup@plt>
  mov    %eax,%edx
  mov    -0xa0(%rbp),%rcx
  mov    -0x98(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <mb_push_string@plt>
  mov    %eax,-0x74(%rbp)
  cmpl   $0x0,-0x74(%rbp)
  je     L62
  mov    -0x74(%rbp),%eax
  jmp    L34
L101:
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdi
  call   <asctime@plt>
  mov    %rax,-0x70(%rbp)
  mov    -0x70(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  lea    0x1(%rax),%edx
  mov    -0x70(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <mb_memdup@plt>
  mov    %eax,%edx
  mov    -0xa0(%rbp),%rcx
  mov    -0x98(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <mb_push_string@plt>
  mov    %eax,-0x78(%rbp)
  cmpl   $0x0,-0x78(%rbp)
  je     L62
  mov    -0x78(%rbp),%eax
  jmp    L34
L62:
  mov    -0x88(%rbp),%eax
L34:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L42
  call   <__stack_chk_fail@plt>
L42:
  leave
  ret
```

assistant: ```c
int now(struct mb_interpreter_t *s, void **l) {
  int result = 0;
  time_t ct;
  struct tm *timeinfo = 0;
  char buf[80];
  char *arg = 0;
  do {
    ((void)(s && l));
    assert(s && l);
  } while (0);
  do {
    int __hr = (mb_attempt_open_bracket(s, l));
    if ((__hr) != 0) {
      return (__hr);
    }
  } while (0);
  if (mb_has_arg(s, l)) {
    do {
      int __hr = (mb_pop_string(s, l, &arg));
      if ((__hr) != 0) {
        return (__hr);
      }
    } while (0);
  }
  do {
    int __hr = (mb_attempt_close_bracket(s, l));
    if ((__hr) != 0) {
      return (__hr);
    }
  } while (0);
  time(&ct);
  timeinfo = localtime(&ct);
  if (arg) {
    strftime(buf, sizeof(buf), arg, timeinfo);
    do {
      int __hr = (mb_push_string(s, l, mb_memdup(buf, (unsigned)(strlen(buf) + 1))));
      if ((__hr) != 0) {
        return (__hr);
      }
    } while (0);
  } else {
    arg = asctime(timeinfo);
    do {
      int __hr = (mb_push_string(s, l, mb_memdup(arg, (unsigned)(strlen(arg) + 1))));
      if ((__hr) != 0) {
        return (__hr);
      }
    } while (0);
  }
  return result;
}
```