user: What would the C source look like for the assembly code provided here:

```asm
<setup_add_owner>:
  endbr64
  push   %rbx
  sub    $0x150,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x148(%rsp)
  xor    %eax,%eax
  mov    $0xa,%edi
  call   <putchar@plt>
  lea    D128(%rip),%rdi
  call   <puts@plt>
  lea    D24(%rip),%rdi
  call   <puts@plt>
  lea    D34(%rip),%rdi
  call   <puts@plt>
  lea    D43(%rip),%rdi
  call   <puts@plt>
  lea    D82(%rip),%rdi
  call   <puts@plt>
  lea    D73(%rip),%rdi
  call   <puts@plt>
  lea    D105(%rip),%rdi
  call   <puts@plt>
  mov    %rsp,%rsi
  mov    $0x0,%ecx
  mov    $0x20,%edx
  lea    D39(%rip),%rdi
  call   <text_input@plt>
  lea    0x40(%rsp),%rsi
  mov    $0x0,%ecx
  mov    $0x100,%edx
  lea    D23(%rip),%rdi
  call   <text_input@plt>
  lea    D141(%rip),%rdi
  call   <system@plt>
  lea    0x20(%rsp),%rsi
  mov    $0x0,%ecx
  mov    $0x20,%edx
  lea    D121(%rip),%rdi
  call   <text_input@plt>
  lea    D99(%rip),%rdi
  call   <system@plt>
  lea    D149(%rip),%rdi
  call   <puts@plt>
  cmpb   $0x0,(%rsp)
  je     L62
  cmpb   $0x0,0x40(%rsp)
  je     L62
  mov    %rsp,%rdi
  call   <userdb_find_byname@plt>
  test   %rax,%rax
  je     L72
  mov    %rsp,%rsi
  lea    D106(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
L64:
  mov    0x148(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L89
  add    $0x150,%rsp
  pop    %rbx
  ret
L62:
  lea    D30(%rip),%rdi
  call   <puts@plt>
  mov    $0xffffffff,%eax
  jmp    L64
L72:
  lea    0x40(%rsp),%rsi
  mov    %rsp,%rdi
  call   <userdb_add@plt>
  mov    %eax,%ebx
  test   %eax,%eax
  je     L16
  lea    0x40(%rsp),%rdx
  mov    %rsp,%rsi
  lea    D56(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%r8d
  lea    D118(%rip),%rcx
  mov    $0x0,%edx
  mov    $0x0,%esi
  mov    %ebx,%edi
  call   <mode_set@plt>
  mov    $0x0,%eax
  cmpb   $0x0,0x20(%rsp)
  je     L64
  lea    0x20(%rsp),%rsi
  mov    %ebx,%edi
  call   <userdb_set_password@plt>
  lea    D188(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  jmp    L64
L16:
  mov    %rsp,%rsi
  lea    D68(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L64
L89:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_label: D128
type_guessed: string
name: read_data
arguments: data_label: D24
type_guessed: string
name: read_data
arguments: data_label: D34
type_guessed: string
name: read_data
arguments: data_label: D43
type_guessed: string
name: read_data
arguments: data_label: D82
type_guessed: string
name: read_data
arguments: data_label: D73
type_guessed: string
name: read_data
arguments: data_label: D105
type_guessed: string
name: read_data
arguments: data_label: D39
type_guessed: string
name: read_data
arguments: data_label: D23
type_guessed: string
name: read_data
arguments: data_label: D141
type_guessed: string
name: read_data
arguments: data_label: D121
type_guessed: string
name: read_data
arguments: data_label: D99
type_guessed: string
name: read_data
arguments: data_label: D149
type_guessed: string
name: read_data
arguments: data_label: D106
type_guessed: string
name: read_data
arguments: data_label: D30
type_guessed: string
name: read_data
arguments: data_label: D56
type_guessed: string
name: read_data
arguments: data_label: D118
type_guessed: string
name: read_data
arguments: data_label: D188
type_guessed: string
name: read_data
arguments: data_label: D68
type_guessed: string

tool: D128: This will add an owner to your database.


tool: D24: It is important for security that you use the most specific

tool: D34: mask possible.


tool: D43: It is highly recommended that you set a password for this

tool: D82: user.  Users with passwords will have to authenticate with

tool: D73: the bot using the `auth' command before using any privileged

tool: D105: commands.


tool: D39: Handle

tool: D23: Mask

tool: D141: stty -echo

tool: D121: Password

tool: D99: stty echo

tool: D149: 


tool: D106: User `%s' already exists.


tool: D30: Canceled.

tool: D56: Added owner `%s' with mask `%s'.


tool: D118: +w

tool: D188: Set password.

tool: D68: Could not add bot user `%s' to database.


assistant: ```c
int setup_add_owner(void) {
  char name[32], mask[256], pass[32];
  int id;
  putchar('\n');
  printf("This will add an owner to your database.\n\n");
  printf("It is important for security that you use the most specific\n");
  printf("mask possible.\n\n");
  printf("It is highly recommended that you set a password for this\n");
  printf("user.  Users with passwords will have to authenticate with\n");
  printf("the bot using the `auth' command before using any privileged\n");
  printf("commands.\n\n");
  text_input("Handle", name, 32, NULL);
  text_input("Mask", mask, 256, NULL);
  system("stty -echo");
  text_input("Password", pass, 32, NULL);
  system("stty echo");
  printf("\n\n");
  if ((name[0] == 0) || (mask[0] == 0)) {
    printf("Canceled.\n");
    return -1;
  }
  if (userdb_find_byname(name)) {
    printf("User `%s' already exists.\n", name);
  } else {
    id = userdb_add(name, mask);
    if (id == 0) {
      printf("Could not add bot user `%s' to database.\n", name);
      return -1;
    }
    printf("Added owner `%s' with mask `%s'.\n", name, mask);
    mode_set(id, NULL, NULL, "+w", NULL);
    if (pass[0] != 0) {
      userdb_set_password(id, pass);
      printf("Set password.\n");
    }
  }
  return 0;
}
```