user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<DOhelp>:
  endbr64
  sub    $0x28,%rsp
  lea    D242(%rip),%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  lea    D422(%rip),%rdi
  call   <printf@plt>
  lea    D319(%rip),%rdi
  call   <printf@plt>
  lea    D165(%rip),%rdi
  call   <printf@plt>
  lea    D136(%rip),%rdi
  call   <printf@plt>
  lea    D333(%rip),%rdi
  call   <printf@plt>
  lea    D256(%rip),%rdi
  call   <printf@plt>
  lea    D430(%rip),%rdi
  call   <printf@plt>
  lea    D174(%rip),%rdi
  call   <printf@plt>
  lea    D317(%rip),%rdi
  call   <printf@plt>
  lea    D13(%rip),%rdi
  call   <printf@plt>
  lea    D293(%rip),%rdi
  call   <printf@plt>
  lea    D338(%rip),%rdi
  call   <printf@plt>
  lea    D233(%rip),%rdi
  call   <printf@plt>
  lea    D28(%rip),%rdi
  call   <printf@plt>
  lea    D120(%rip),%rdi
  call   <printf@plt>
  lea    D141(%rip),%rdi
  call   <printf@plt>
  lea    D326(%rip),%rdi
  call   <printf@plt>
  lea    D374(%rip),%rdi
  call   <printf@plt>
  lea    D353(%rip),%rdi
  call   <printf@plt>
  lea    D69(%rip),%rdi
  call   <printf@plt>
  lea    D81(%rip),%rdi
  call   <printf@plt>
  lea    D225(%rip),%rdi
  call   <printf@plt>
  lea    0xe(%rsp),%rsi
  mov    $0xa,%edx
  lea    D271(%rip),%rdi
  call   <readline@plt>
  lea    D433(%rip),%rdi
  call   <printf@plt>
  lea    D30(%rip),%rdi
  call   <printf@plt>
  lea    D53(%rip),%rdi
  call   <printf@plt>
  lea    D332(%rip),%rdi
  call   <printf@plt>
  lea    D77(%rip),%rdi
  call   <printf@plt>
  lea    D412(%rip),%rdi
  call   <printf@plt>
  lea    D95(%rip),%rdi
  call   <printf@plt>
  lea    D232(%rip),%rdi
  call   <printf@plt>
  lea    D185(%rip),%rdi
  call   <printf@plt>
  lea    D378(%rip),%rdi
  call   <printf@plt>
  lea    D111(%rip),%rdi
  call   <printf@plt>
  lea    D142(%rip),%rdi
  call   <printf@plt>
  lea    D219(%rip),%rdi
  call   <printf@plt>
  lea    D304(%rip),%rdi
  call   <printf@plt>
  lea    D181(%rip),%rdi
  call   <printf@plt>
  lea    D51(%rip),%rdi
  call   <printf@plt>
  lea    D423(%rip),%rdi
  call   <printf@plt>
  lea    D234(%rip),%rdi
  call   <printf@plt>
  lea    D42(%rip),%rdi
  call   <printf@plt>
  lea    D107(%rip),%rdi
  call   <printf@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  xor    %eax,%eax
  add    $0x28,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D242
data_type: string
name: disassemble_data
arguments: label: D422
data_type: string
name: disassemble_data
arguments: label: D319
data_type: string
name: disassemble_data
arguments: label: D165
data_type: string
name: disassemble_data
arguments: label: D136
data_type: string
name: disassemble_data
arguments: label: D333
data_type: string
name: disassemble_data
arguments: label: D256
data_type: string
name: disassemble_data
arguments: label: D430
data_type: string
name: disassemble_data
arguments: label: D174
data_type: string
name: disassemble_data
arguments: label: D317
data_type: string
name: disassemble_data
arguments: label: D13
data_type: string
name: disassemble_data
arguments: label: D293
data_type: string
name: disassemble_data
arguments: label: D338
data_type: string
name: disassemble_data
arguments: label: D233
data_type: string
name: disassemble_data
arguments: label: D28
data_type: string
name: disassemble_data
arguments: label: D120
data_type: string
name: disassemble_data
arguments: label: D141
data_type: string
name: disassemble_data
arguments: label: D326
data_type: string
name: disassemble_data
arguments: label: D374
data_type: string
name: disassemble_data
arguments: label: D353
data_type: string
name: disassemble_data
arguments: label: D69
data_type: string
name: disassemble_data
arguments: label: D81
data_type: string
name: disassemble_data
arguments: label: D225
data_type: string
name: disassemble_data
arguments: label: D271
data_type: string
name: disassemble_data
arguments: label: D433
data_type: string
name: disassemble_data
arguments: label: D30
data_type: string
name: disassemble_data
arguments: label: D53
data_type: string
name: disassemble_data
arguments: label: D332
data_type: string
name: disassemble_data
arguments: label: D77
data_type: string
name: disassemble_data
arguments: label: D412
data_type: string
name: disassemble_data
arguments: label: D95
data_type: string
name: disassemble_data
arguments: label: D232
data_type: string
name: disassemble_data
arguments: label: D185
data_type: string
name: disassemble_data
arguments: label: D378
data_type: string
name: disassemble_data
arguments: label: D111
data_type: string
name: disassemble_data
arguments: label: D142
data_type: string
name: disassemble_data
arguments: label: D219
data_type: string
name: disassemble_data
arguments: label: D304
data_type: string
name: disassemble_data
arguments: label: D181
data_type: string
name: disassemble_data
arguments: label: D51
data_type: string
name: disassemble_data
arguments: label: D423
data_type: string
name: disassemble_data
arguments: label: D234
data_type: string
name: disassemble_data
arguments: label: D42
data_type: string
name: disassemble_data
arguments: label: D107
data_type: string

tool: D242: Command:      Description


tool: D422: !             Escape to a shell


tool: D319: append        Append a file to remote host


tool: D165: ascii         Set file transfer mode to ascii


tool: D136: binary        Set file transfer mode to binary


tool: D333: bye           Close connection and exit


tool: D256: cd            Change directory on remote host


tool: D430: close         Close connection


tool: D174: del           Remove file on remote host


tool: D317: dir           Display long form remote host directory listing


tool: D13: exit          Close connection and exit


tool: D293: get           Retrieve a file from remote host


tool: D338: help          Display this text


tool: D233: lcd           Change directory on local host


tool: D28: ldir          Display long form local host directory listing


tool: D120: lls           Display local host directory listing


tool: D141: lmkdir        Create directory on local host


tool: D326: lpwd          Display current directory on local host


tool: D374: lrmdir        Remove directory on local host


tool: D353: ls            Display remote host directory listing


tool: D69: mget          Retrieve multiple files from remote host


tool: D81: mkdir         Create directory on remote host


tool: D225: mod           Get file modification time


tool: D271: Press ENTER to continue... 

tool: D433: mput          Send multiple files to remote host


tool: D30: noop          Send the ftp NOOP command


tool: D53: open          Open connection to remote host


tool: D332: pass          Enter remote user password


tool: D77: passive       Toggle passive mode


tool: D412: put           Send a file to remote host


tool: D95: putu          Send a file to remote host(unique)


tool: D232: pwd           Display current directory on remote host


tool: D185: quit          Close connection and exit


tool: D378: quote         Send raw ftp command to remote host


tool: D111: reget         Restart a partial file retrieve from remote host


tool: D142: remotehelp    Display ftp commands implemented on remote host


tool: D219: reput         Restart a partial file send to remote host


tool: D304: rm            Remove file on remote host


tool: D181: rmdir         Remove directory on remote host


tool: D51: site          Send a site specific command


tool: D423: size          Get file size information


tool: D234: status        Get connection/file status information


tool: D42: system        Get remote system type information


tool: D107: user          Enter remote user information


assistant: ```c
int DOhelp() {
  char junk[10];
  printf("Command:      Description\n");
  printf("!             Escape to a shell\n");
  printf("append        Append a file to remote host\n");
  printf("ascii         Set file transfer mode to ascii\n");
  printf("binary        Set file transfer mode to binary\n");
  printf("bye           Close connection and exit\n");
  printf("cd            Change directory on remote host\n");
  printf("close         Close connection\n");
  printf("del           Remove file on remote host\n");
  printf("dir           Display long form remote host directory listing\n");
  printf("exit          Close connection and exit\n");
  printf("get           Retrieve a file from remote host\n");
  printf("help          Display this text\n");
  printf("lcd           Change directory on local host\n");
  printf("ldir          Display long form local host directory listing\n");
  printf("lls           Display local host directory listing\n");
  printf("lmkdir        Create directory on local host\n");
  printf("lpwd          Display current directory on local host\n");
  printf("lrmdir        Remove directory on local host\n");
  printf("ls            Display remote host directory listing\n");
  printf("mget          Retrieve multiple files from remote host\n");
  printf("mkdir         Create directory on remote host\n");
  printf("mod           Get file modification time\n");
  readline("Press ENTER to continue... ", junk, sizeof(junk));
  printf("mput          Send multiple files to remote host\n");
  printf("noop          Send the ftp NOOP command\n");
  printf("open          Open connection to remote host\n");
  printf("pass          Enter remote user password\n");
  printf("passive       Toggle passive mode\n");
  printf("put           Send a file to remote host\n");
  printf("putu          Send a file to remote host(unique)\n");
  printf("pwd           Display current directory on remote host\n");
  printf("quit          Close connection and exit\n");
  printf("quote         Send raw ftp command to remote host\n");
  printf("reget         Restart a partial file retrieve from remote host\n");
  printf("remotehelp    Display ftp commands implemented on remote host\n");
  printf("reput         Restart a partial file send to remote host\n");
  printf("rm            Remove file on remote host\n");
  printf("rmdir         Remove directory on remote host\n");
  printf("site          Send a site specific command\n");
  printf("size          Get file size information\n");
  printf("status        Get connection/file status information\n");
  printf("system        Get remote system type information\n");
  printf("user          Enter remote user information\n");
  return (0);
}
```