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

```asm
<box_checker>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %esi,-0x5c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x38(%rbp)
  cmpl   $0x9,-0x5c(%rbp)
  ja     L167
  mov    -0x5c(%rbp),%eax
  lea    0x0(,%rax,4),%rdx
  lea    D16(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D16(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
  movl   $0x0,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  jmp    L166
  movl   $0x0,-0x48(%rbp)
  movl   $0x1,-0x44(%rbp)
  jmp    L166
  movl   $0x0,-0x48(%rbp)
  movl   $0x2,-0x44(%rbp)
  jmp    L166
  movl   $0x1,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  jmp    L166
  movl   $0x1,-0x48(%rbp)
  movl   $0x1,-0x44(%rbp)
  jmp    L166
  movl   $0x1,-0x48(%rbp)
  movl   $0x2,-0x44(%rbp)
  jmp    L166
  movl   $0x2,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  jmp    L166
  movl   $0x2,-0x48(%rbp)
  movl   $0x1,-0x44(%rbp)
  jmp    L166
  movl   $0x2,-0x48(%rbp)
  movl   $0x2,-0x44(%rbp)
  jmp    L166
L167:
  mov    $0x1,%eax
  jmp    L134
L166:
  movl   $0x0,-0x40(%rbp)
  jmp    L203
L98:
  movl   $0x0,-0x3c(%rbp)
  jmp    L169
L35:
  mov    -0x48(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %eax,%edx
  mov    -0x40(%rbp),%eax
  add    %eax,%edx
  mov    %edx,%eax
  shl    $0x3,%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rdx,%rax,1),%rcx
  mov    -0x44(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cltq
  add    %rcx,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x38(%rbp),%eax
  cltq
  mov    %edx,-0x30(%rbp,%rax,4)
  addl   $0x1,-0x38(%rbp)
  addl   $0x1,-0x3c(%rbp)
L169:
  cmpl   $0x2,-0x3c(%rbp)
  jle    L35
  addl   $0x1,-0x40(%rbp)
L203:
  cmpl   $0x2,-0x40(%rbp)
  jle    L98
  movl   $0x0,-0x40(%rbp)
  jmp    L239
L111:
  mov    -0x40(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  lea    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x34(%rbp)
  cmpl   $0x0,-0x34(%rbp)
  je     L34
  movl   $0x0,-0x3c(%rbp)
  jmp    L117
L192:
  mov    -0x40(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  je     L10
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  lea    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cmp    %eax,-0x34(%rbp)
  jne    L10
  mov    $0x1,%eax
  jmp    L134
L10:
  addl   $0x1,-0x3c(%rbp)
L117:
  cmpl   $0x8,-0x3c(%rbp)
  jle    L192
L34:
  addl   $0x1,-0x40(%rbp)
L239:
  cmpl   $0x8,-0x40(%rbp)
  jle    L111
  mov    $0x0,%eax
L134:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L154
  call   <__stack_chk_fail@plt>
L154:
  leave
  ret
```

assistant: ```c
int box_checker(int *sudoku, int box) {
  int filemult;
  int columnmult;
  int i;
  int j;
  int buffer[9];
  int cont = 0;
  int number;
  switch (box) {
  case 1:
    filemult = 0;
    columnmult = 0;
    break;
  case 2:
    filemult = 0;
    columnmult = 1;
    break;
  case 3:
    filemult = 0;
    columnmult = 2;
    break;
  case 4:
    filemult = 1;
    columnmult = 0;
    break;
  case 5:
    filemult = 1;
    columnmult = 1;
    break;
  case 6:
    filemult = 1;
    columnmult = 2;
    break;
  case 7:
    filemult = 2;
    columnmult = 0;
    break;
  case 8:
    filemult = 2;
    columnmult = 1;
    break;
  case 9:
    filemult = 2;
    columnmult = 2;
    break;
  default:
    return 1;
  }
  for (i = 0; i < 3; i++) {
    for (j = 0; j < 3; j++) {
      buffer[cont] = *(sudoku + (i + 3 * filemult) * 9 + j + 3 * columnmult);
      cont++;
    }
  }
  for (i = 0; i < 9; i++) {
    number = *(buffer + i);
    if (number != 0) {
      for (j = 0; j < 9; j++) {
        if ((i != j) && (number == *(buffer + j)))
          return 1;
      }
    }
  }
  return 0;
}
```