user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  movl   $0x65,0x4(%rsp)
  mov    (%rsi),%rdi
  call   <diod_log_init@plt>
  mov    $0x0,%eax
  call   <geteuid@plt>
  test   %rax,%rax
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  mov    $0x0,%esi
  mov    $0x0,%edi
  call   <_setgroups@plt>
  lea    D12(%rip),%rbp
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <msg@plt>
  mov    $0x0,%eax
  call   <geteuid@plt>
  test   %rax,%rax
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  mov    $0x120,%edx
  mov    $0x65,%esi
  mov    $0x0,%edi
  call   <create_file@plt>
  mov    %rax,%rbx
  mov    $0x64,%ecx
  mov    $0x64,%edx
  mov    $0x0,%esi
  mov    $0x0,%edi
  call   <change_fsid@plt>
  mov    %rbx,%rdi
  call   <read_file@plt>
  test   %eax,%eax
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  mov    $0x65,%ecx
  mov    $0x64,%edx
  mov    $0x64,%esi
  mov    $0x64,%edi
  call   <change_fsid@plt>
  mov    %rbx,%rdi
  call   <read_file@plt>
  mov    %eax,%edi
  call   <assert@plt>
  mov    $0x64,%ecx
  mov    $0x64,%edx
  mov    $0x65,%esi
  mov    $0x64,%edi
  call   <change_fsid@plt>
  mov    %rbx,%rdi
  call   <read_file@plt>
  test   %eax,%eax
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  lea    0x4(%rsp),%rsi
  mov    $0x1,%edi
  call   <_setgroups@plt>
  mov    0x4(%rsp),%esi
  lea    D29(%rip),%rdi
  mov    $0x0,%eax
  call   <msg@plt>
  mov    %rbx,%rdi
  call   <read_file@plt>
  mov    %eax,%edi
  call   <assert@plt>
  mov    $0x0,%esi
  mov    $0x0,%edi
  call   <_setgroups@plt>
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <msg@plt>
  mov    %rbx,%rdi
  call   <read_file@plt>
  test   %eax,%eax
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  mov    $0x0,%ecx
  mov    $0x0,%edx
  mov    $0x64,%esi
  mov    $0x64,%edi
  call   <change_fsid@plt>
  mov    %rbx,%rdi
  call   <_unlink@plt>
  lea    D24(%rip),%rdi
  mov    $0x0,%eax
  call   <msg@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  mov    $0x0,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L6:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: label: D12
type_guessed: string
name: parse_data
arguments: label: D29
type_guessed: string
name: parse_data
arguments: label: D24
type_guessed: string

tool: D12: supplemental groups cleared

tool: D29: %d added to supplemental groups

tool: D24: test complete

assistant: ```c
int main(int argc, char *argv[]) {
  char *path;
  gid_t gids[] = {101};
  diod_log_init(argv[0]);
  assert(geteuid() == 0);
  _setgroups(0, NULL);
  msg("supplemental groups cleared");
  assert(geteuid() == 0);
  path = create_file(0, 101, 0440);
  change_fsid(0, 0, 100, 100);
  assert(!read_file(path));
  change_fsid(100, 100, 100, 101);
  assert(read_file(path));
  change_fsid(100, 101, 100, 100);
  assert(!read_file(path));
  _setgroups(1, gids);
  msg("%d added to supplemental groups", gids[0]);
  assert(read_file(path));
  _setgroups(0, NULL);
  msg("supplemental groups cleared");
  assert(!read_file(path));
  change_fsid(100, 100, 0, 0);
  _unlink(path);
  msg("test complete");
  exit(0);
}
```