user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<challenge1>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0xc8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  lea    D5(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  movabs $0x3032643637323934,%rax
  movabs $0x6336633639366236,%rdx
  mov    %rax,-0xa0(%rbp)
  mov    %rdx,-0x98(%rbp)
  movabs $0x3032373665363936,%rax
  movabs $0x3237353766363937,%rdx
  mov    %rax,-0x90(%rbp)
  mov    %rdx,-0x88(%rbp)
  movabs $0x3136323732363032,%rax
  movabs $0x6336303265363936,%rdx
  mov    %rax,-0x80(%rbp)
  mov    %rdx,-0x78(%rbp)
  movabs $0x3032353662363936,%rax
  movabs $0x6636303730323136,%rdx
  mov    %rax,-0x70(%rbp)
  mov    %rdx,-0x68(%rbp)
  movabs $0x6536663633373936,%rax
  movabs $0x3032333735376636,%rdx
  mov    %rax,-0x60(%rbp)
  mov    %rdx,-0x58(%rbp)
  movabs $0x3836333735376436,%rax
  movabs $0x6436663666363237,%rdx
  mov    %rax,-0x50(%rbp)
  mov    %rdx,-0x48(%rbp)
  movb   $0x0,-0x40(%rbp)
  lea    -0xa0(%rbp),%rax
  mov    %rax,%rdi
  call   <counthex@plt>
  mov    %eax,-0xc4(%rbp)
  mov    -0xc4(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0xc0(%rbp)
  movslq %eax,%rdx
  mov    %rdx,-0xe0(%rbp)
  movq   $0x0,-0xd8(%rbp)
  movslq %eax,%rdx
  mov    %rdx,-0xf0(%rbp)
  movq   $0x0,-0xe8(%rbp)
  cltq
  mov    $0x10,%edx
  sub    $0x1,%rdx
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L24:
  cmp    %rdx,%rsp
  je     L12
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L24
L12:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L1
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L1:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0xb8(%rbp)
  mov    -0xb8(%rbp),%rdx
  lea    -0xa0(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <str2hex@plt>
  mov    -0xc4(%rbp),%edx
  mov    -0xb8(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <printhex@plt>
  mov    -0xc4(%rbp),%eax
  mov    %eax,%edi
  call   <base64length@plt>
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0xb0(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  cltq
  mov    $0x10,%edx
  sub    $0x1,%rdx
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L2:
  cmp    %rdx,%rsp
  je     L30
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L2
L30:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L41
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L41:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0xa8(%rbp)
  mov    -0xa8(%rbp),%rdx
  mov    -0xc4(%rbp),%ecx
  mov    -0xb8(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <hex2base64@plt>
  mov    -0xa8(%rbp),%rax
  mov    %rax,%rsi
  lea    D9(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %rbx,%rsp
  nop
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L50
  call   <__stack_chk_fail@plt>
L50:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

tool_calls: name: read_data
arguments: label: D5
data_type: string
name: read_data
arguments: label: D9
data_type: string

tool: D5: challenge 1:

tool: D9: base64 = '%s'


assistant: ```c
void challenge1() {
  printf("challenge 1:\n");
  char in[] = "49276d206b696c6c696e6720796f757220627261696e206c"
              "696b65206120706f69736f6e6f7573206d757368726f6f6d";
  int size = counthex(in);
  unsigned char hexarray[size];
  str2hex(in, hexarray);
  printhex(hexarray, size);
  char base64[base64length(size)];
  hex2base64(hexarray, size, base64);
  printf("base64 = '%s'\n", base64);
}
```