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

```asm
<tcpdump>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  test   %esi,%esi
  je     L68
  mov    %rdi,%r12
  mov    %esi,%r15d
  mov    $0x0,%ebp
  lea    0x10(%rsp),%r14
  jmp    L80
L178:
  mov    %ebp,%esi
  lea    D34(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L39:
  movzbl 0x1(%r12),%edx
  movzbl (%r12),%esi
  lea    D2(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movzbl (%r12),%ebx
  movzbl %bl,%edi
  call   <isprint@plt>
  cmp    $0x1f,%bl
  jbe    L135
  test   %eax,%eax
  jne    L74
L135:
  mov    $0x2e,%ebx
L74:
  mov    %r13d,%r13d
  mov    %bl,(%rsp,%r13,1)
  lea    0x1(%rbp),%ebx
  movzbl 0x1(%r12),%r13d
  movzbl %r13b,%edi
  call   <isprint@plt>
  cmp    $0x1f,%r13b
  jbe    L1
  test   %eax,%eax
  jne    L100
L1:
  and    $0xf,%ebx
  movb   $0x2e,(%rsp,%rbx,1)
L139:
  add    $0x2,%r12
  add    $0x2,%ebp
  cmp    %ebp,%r15d
  jbe    L88
L80:
  mov    %ebp,%r13d
  and    $0xf,%r13d
  jne    L39
  test   %ebp,%ebp
  je     L178
  mov    %rsp,%rbx
L44:
  movsbl (%rbx),%edi
  call   <putchar@plt>
  add    $0x1,%rbx
  cmp    %rbx,%r14
  jne    L44
  jmp    L178
L100:
  and    $0xf,%ebx
  mov    %r13b,(%rsp,%rbx,1)
  jmp    L139
L88:
  test   $0x1,%r15b
  jne    L134
L73:
  mov    %ebp,%ebx
  and    $0xf,%ebx
  je     L68
  lea    D29(%rip),%r12
L0:
  mov    %r12,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %ebx,%ebx
  movb   $0x20,(%rsp,%rbx,1)
  lea    0x1(%rbp),%eax
  and    $0xf,%eax
  movb   $0x20,(%rsp,%rax,1)
  add    $0x2,%ebp
  mov    %ebp,%ebx
  and    $0xf,%ebx
  jne    L0
L68:
  mov    %rsp,%rbx
  lea    0x10(%rsp),%rbp
L96:
  movsbl (%rbx),%edi
  call   <putchar@plt>
  add    $0x1,%rbx
  cmp    %rbx,%rbp
  jne    L96
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L120
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L134:
  lea    D7(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L73
L120:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D34
datatype: string
name: disassemble_data
arguments: data_label: D2
datatype: string
name: disassemble_data
arguments: data_label: D29
datatype: string
name: disassemble_data
arguments: data_label: D7
datatype: string

tool: D34: 
0x%4.4X	

tool: D2: %2.2X%2.2X 

tool: D29:      

tool: D7:    

assistant: ```c
void tcpdump(buffer, len) unsigned char *buffer;
unsigned int len;
{
  register unsigned char *bufptr;
  unsigned int zipper;
  int x;
  char bleh[16];
  bufptr = buffer;
  for (zipper = 0; zipper < len; zipper++) {
    if (!(zipper & 0x0f)) {
      if (zipper) {
        for (x = 0; x < 16; x++) {
          putchar(bleh[x]);
        }
      }
      printf("\n0x%4.4X\t", zipper);
    }
    printf("%2.2X%2.2X ", (bufptr[0] & 0xff), (bufptr[1] & 0xff));
    if (isprint(bufptr[0]) && (bufptr[0] > 31)) {
      bleh[zipper & 0x0f] = bufptr[0];
    } else {
      bleh[zipper & 0x0f] = '.';
    }
    bufptr++;
    zipper++;
    if (isprint(bufptr[0]) && (bufptr[0] > 31)) {
      bleh[zipper & 0x0f] = bufptr[0];
    } else {
      bleh[zipper & 0x0f] = '.';
    }
    bufptr++;
  }
  if ((len & 0x01) == 0x01) {
    printf("\b\b\b   ");
  }
  while ((zipper & 0x0f)) {
    printf("     ");
    bleh[zipper & 0x0f] = ' ';
    zipper++;
    bleh[zipper & 0x0f] = ' ';
    zipper++;
  }
  for (x = 0; x < 16; x++) {
    putchar(bleh[x]);
  }
  putchar('\n');
}
```