user: Please show me the C implementation that matches the assembly code listed below:

```asm
<simple_set_copy>:
  endbr64
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdi,%rbp
  sub    $0x110,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x108(%rsp)
  xor    %eax,%eax
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L103
L48:
  mov    0x108(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L101
  add    $0x110,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L103:
  mov    %rbp,%rdi
  call   <lookup_set@plt>
  mov    %eax,%r13d
  test   %eax,%eax
  jne    L13
  mov    $0x6,%esi
  mov    %rbp,%rdi
  call   <named_set@plt>
  mov    %eax,%r13d
  test   %eax,%eax
  je     L42
  xor    %eax,%eax
  call   <error@plt>
  test   %rax,%rax
  je     L0
L42:
  movdqa D2(%rip),%xmm0
  mov    %rsp,%rdi
  movabs $0x74696e6966656420,%rax
  movl   $0x6e6f69,0x18(%rsp)
  mov    %rax,0x10(%rsp)
  movaps %xmm0,(%rsp)
  call   <set_error2@plt>
  jmp    L48
  nop
L13:
  mov    %eax,%edi
  call   <clear_set@plt>
L0:
  mov    %r12,%rdi
  call   <lookup_set@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  je     L106
  xor    %eax,%eax
  call   <error@plt>
  test   %rax,%rax
  je     L34
L106:
  mov    %rsp,%rbp
  mov    %rbp,%rdi
  call   <set_error2@plt>
  mov    %r12,%rdx
  mov    %rbp,%rdi
  xor    %eax,%eax
  lea    D31(%rip),%rsi
  call   <sprintf@plt>
  jmp    L48
  nopl   (%rax)
L34:
  mov    %ebp,%edi
  call   <count_set@plt>
  mov    %ebp,%edi
  mov    %eax,%r12d
  call   <init_for@plt>
  mov    %eax,%edx
  test   %eax,%eax
  je     L24
  nop
L31:
  mov    $0x6,%esi
  mov    %r13d,%edi
  call   <include_member@plt>
  mov    %ebp,%edi
  call   <next_for@plt>
  mov    %eax,%edx
  test   %eax,%eax
  jne    L31
L24:
  mov    %r13d,%edi
  call   <count_set@plt>
  cmp    %eax,%r12d
  je     L48
  movdqa D36(%rip),%xmm0
  mov    %rsp,%rdi
  mov    $0x73,%eax
  movl   $0x74657320,0x30(%rsp)
  mov    %ax,0x34(%rsp)
  movaps %xmm0,(%rsp)
  movdqa D42(%rip),%xmm0
  movaps %xmm0,0x10(%rsp)
  movdqa D37(%rip),%xmm0
  movaps %xmm0,0x20(%rsp)
  call   <set_error1@plt>
  jmp    L48
L101:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D2
datatype: byte[16]
name: disassemble_data
arguments: data_tag: D31
datatype: string
name: disassemble_data
arguments: data_tag: D36
datatype: byte[16]
name: disassemble_data
arguments: data_tag: D42
datatype: byte[16]
name: disassemble_data
arguments: data_tag: D37
datatype: byte[16]

tool: {"D2": [0x70,0x72,0x6f,0x62,0x6c,0x65,0x6d,0x20,0x77,0x69,0x74,0x68,0x20,0x73,0x65,0x74]}

tool: D31: invalid setname(%s) in -

tool: {"D36": [0x73,0x69,0x6d,0x70,0x6c,0x65,0x5f,0x73,0x65,0x74,0x5f,0x63,0x6f,0x70,0x79,0x3a]}

tool: {"D42": [0x20,0x69,0x6e,0x63,0x6f,0x6e,0x73,0x69,0x73,0x74,0x65,0x6e,0x74,0x20,0x6e,0x75]}

tool: {"D37": [0x6d,0x62,0x65,0x72,0x20,0x6f,0x66,0x20,0x61,0x74,0x6f,0x6d,0x73,0x20,0x69,0x6e]}

assistant: ```c
void simple_set_copy(char *setname1, char *setname2) {
  int set1, set2, o;
  int count1, count2;
  char message[255];
  if (strcmp(setname1, setname2) == 0)
    return;
  set1 = lookup_set(setname1);
  if (set1 == 0) {
    set1 = named_set(setname1, 6);
    if (set1 == 0 || error()) {
      sprintf(message, "problem with set definition");
      set_error2(message);
      return;
    }
  } else
    clear_set(set1);
  set2 = lookup_set(setname2);
  if (set2 == 0 || error()) {
    set_error2(message);
    sprintf(message, "invalid setname(%s) in -", setname2);
    return;
  }
  count2 = count_set(set2);
  for (o = init_for(set2); o != 0; o = next_for(set2)) {
    include_member(set1, 6, o);
  }
  count1 = count_set(set1);
  if (count1 != count2) {
    sprintf(message, "simple_set_copy: inconsistent number of atoms in sets");
    set_error1(message);
  }
}
```