user: 请将以下的汇编代码转换成C语言代码：

```asm
<encrypt_sku>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x438,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  lea    D49(%rip),%rax
  mov    %rax,%rsi
  lea    D36(%rip),%rax
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x430(%rbp)
  cmpq   $0x0,-0x430(%rbp)
  jne    L25
  lea    D55(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L48
L25:
  lea    D19(%rip),%rax
  mov    %rax,%rsi
  lea    D1(%rip),%rax
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x428(%rbp)
  cmpq   $0x0,-0x428(%rbp)
  jne    L60
  lea    D46(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L48
L62:
  movzbl -0x420(%rbp),%eax
  movsbl %al,%eax
  mov    $0x8,%esi
  mov    %eax,%edi
  call   <reverse_bits@plt>
  mov    %al,-0x420(%rbp)
  mov    -0x434(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x438(%rbp)
  jmp    L57
L59:
  mov    -0x438(%rbp),%eax
  sub    $0x1,%eax
  cltq
  movzbl -0x420(%rbp,%rax,1),%edx
  mov    -0x438(%rbp),%eax
  cltq
  movzbl -0x420(%rbp,%rax,1),%eax
  mov    %edx,%ebx
  xor    %eax,%ebx
  mov    -0x438(%rbp),%eax
  mov    %eax,%edi
  call   <fib@plt>
  xor    %eax,%ebx
  mov    %ebx,%edx
  mov    -0x438(%rbp),%eax
  cltq
  mov    %dl,-0x420(%rbp,%rax,1)
  subl   $0x1,-0x438(%rbp)
L57:
  cmpl   $0x0,-0x438(%rbp)
  jg     L59
  mov    -0x428(%rbp),%rdx
  mov    -0x434(%rbp),%esi
  lea    -0x420(%rbp),%rax
  mov    %rdx,%rcx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <fwrite@plt>
L60:
  mov    -0x430(%rbp),%rdx
  lea    -0x420(%rbp),%rax
  mov    %rdx,%rcx
  mov    $0x400,%edx
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <fread@plt>
  mov    %eax,-0x434(%rbp)
  cmpl   $0x0,-0x434(%rbp)
  jne    L62
  mov    -0x430(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    -0x428(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  nop
L48:
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L24
  call   <__stack_chk_fail@plt>
L24:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: parse_data
arguments: tag: D49
type_guessed: string
name: parse_data
arguments: tag: D36
type_guessed: string
name: parse_data
arguments: tag: D55
type_guessed: string
name: parse_data
arguments: tag: D19
type_guessed: string
name: parse_data
arguments: tag: D1
type_guessed: string
name: parse_data
arguments: tag: D46
type_guessed: string

tool: D49: r

tool: D36: sku.testout

tool: D55: couldn't open input file sku.17


tool: D19: w

tool: D1: sku.test17out

tool: D46: couldn't open output file sku.testout


assistant: ```c
void encrypt_sku(void) {
  FILE *sku17;
  FILE *skutestout;
  char sku_buffer[1024];
  int num_bytes_read;
  if ((sku17 = fopen("sku.testout", "r")) == NULL) {
    printf("couldn't open input file sku.17\n");
    return;
  }
  if ((skutestout = fopen("sku.test17out", "w")) == NULL) {
    printf("couldn't open output file sku.testout\n");
    return;
  }
  while (num_bytes_read = fread(sku_buffer, 1, 1024, sku17)) {
    int current_byte;
    sku_buffer[0] = reverse_bits(sku_buffer[0], 8);
    for (current_byte = num_bytes_read - 1; current_byte > 0; --current_byte) {
      sku_buffer[current_byte] = sku_buffer[current_byte - 1] ^ sku_buffer[current_byte] ^ (fib(current_byte) & 0xFF);
    }
    fwrite(sku_buffer, num_bytes_read, 1, skutestout);
  }
  fclose(sku17);
  fclose(skutestout);
  return;
}
```