user: What is the c source code of the assembly code below?

```asm
<do_dup2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %esi,%r12d
  push   %rbx
  sub    $0x28,%rsp
  mov    %edi,-0x44(%rbp)
  mov    %rsp,%rcx
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  movslq %esi,%rax
  mov    %rax,-0x50(%rbp)
  lea    0xf(,%rax,4),%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rcx
  and    $0xfffffffffffffff0,%rdx
  cmp    %rcx,%rsp
  je     L96
L2:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L2
L96:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  jne    L152
L27:
  mov    %rsp,%r13
  test   %r12d,%r12d
  js     L37
  mov    -0x50(%rbp),%rcx
  mov    %r13,%rax
  lea    0x4(%r13,%rcx,4),%rdx
L155:
  movl   $0xfffffffe,(%rax)
  add    $0x4,%rax
  cmp    %rdx,%rax
  jne    L155
  lea    D60(%rip),%rdi
  xor    %ebx,%ebx
  call   <puts@plt>
  jmp    L117
  nop
L154:
  cmp    %r12d,%r15d
  je     L64
  add    $0x1,%rbx
  cmp    %ebx,%r12d
  jl     L51
L117:
  mov    -0x44(%rbp),%edi
  call   <dup@plt>
  mov    %ebx,%esi
  lea    D20(%rip),%rdi
  mov    %eax,%r15d
  mov    %eax,0x0(%r13,%rbx,4)
  mov    %eax,%edx
  xor    %eax,%eax
  call   <printf@plt>
  cmp    $0xffffffff,%r15d
  jne    L154
  lea    D67(%rip),%rdi
  call   <puts@plt>
  lea    D14(%rip),%rdi
  call   <puts@plt>
L121:
  xor    %ebx,%ebx
  lea    D8(%rip),%r14
  test   %r12d,%r12d
  jle    L166
L4:
  mov    0x0(%r13,%rbx,4),%r12d
  lea    0x2(%r12),%eax
  cmp    $0x1,%eax
  jbe    L166
  mov    %r12d,%edi
  call   <close@plt>
  mov    %ebx,%esi
  mov    %r12d,%edx
  mov    %r14,%rdi
  xor    %eax,%eax
  add    $0x1,%rbx
  call   <printf@plt>
  cmp    %rbx,-0x50(%rbp)
  jne    L4
L166:
  mov    $0xffffffff,%eax
  jmp    L83
  nopl   0x0(%rax,%rax,1)
L64:
  lea    D14(%rip),%rdi
  xor    %r15d,%r15d
  call   <puts@plt>
  test   %ebx,%ebx
  je     L38
  nopl   0x0(%rax,%rax,1)
L67:
  mov    0x0(%r13,%r15,4),%r14d
  mov    %r14d,%edi
  call   <close@plt>
  mov    %r15d,%esi
  mov    %r14d,%edx
  xor    %eax,%eax
  lea    D7(%rip),%rdi
  add    $0x1,%r15
  call   <printf@plt>
  cmp    %rbx,%r15
  jne    L67
L38:
  mov    %r12d,%eax
L83:
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L137
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L152:
  orq    $0x0,-0x8(%rsp,%rdx,1)
  jmp    L27
L37:
  lea    D60(%rip),%rdi
  call   <puts@plt>
L51:
  lea    D14(%rip),%rdi
  call   <puts@plt>
  jmp    L121
L137:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: tag: D60
type_guessed: string
name: read_data
arguments: tag: D20
type_guessed: string
name: read_data
arguments: tag: D67
type_guessed: string
name: read_data
arguments: tag: D14
type_guessed: string
name: read_data
arguments: tag: D8
type_guessed: string
name: read_data
arguments: tag: D7
type_guessed: string

tool: D60: [my_dup2]: before dup temp fds

tool: D20: [my_dup2]: index: %d, create temp fd: %d


tool: D67: [my_dup2]: dup process error!

tool: D14: 
[my_dup2]: to close temp fds

tool: D8: [my_dup2]: index: %d, del temp fd: %d


tool: D7: [my_dup2]: index: %d, temp fd: %d


assistant: ```c
int do_dup2(int src_fd, int new_fd) {
  int index, index_hit = -1, fd_array[new_fd];
  for (index = 0; index <= new_fd; index++)
    fd_array[index] = -2;
  printf("[my_dup2]: before dup temp fds\n");
  for (index = 0; index <= new_fd; index++) {
    fd_array[index] = dup(src_fd);
    printf("[my_dup2]: index: %d, create temp fd: %d\n", index, fd_array[index]);
    if (fd_array[index] == -1) {
      printf("[my_dup2]: dup process error!\n");
      break;
    } else if (fd_array[index] == new_fd) {
      index_hit = index;
      break;
    }
  }
  printf("\n[my_dup2]: to close temp fds\n");
  if (index_hit == -1) {
    for (index = 0; index < new_fd; index++) {
      if ((fd_array[index] == -2) || (fd_array[index] == -1))
        break;
      else {
        close(fd_array[index]);
        printf("[my_dup2]: index: %d, del temp fd: %d\n", index, fd_array[index]);
      }
    }
    return -1;
  } else {
    for (index = 0; index < index_hit; index++) {
      close(fd_array[index]);
      printf("[my_dup2]: index: %d, temp fd: %d\n", index, fd_array[index]);
    }
  }
  return new_fd;
}
```