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

```asm
<parseCommands>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x78,%rsp
  mov    %rdi,0x8(%rsp)
  mov    %rsi,%r14
  mov    %fs:0x28,%rax
  mov    %rax,0x68(%rsp)
  xor    %eax,%eax
  lea    D33(%rip),%r15
  lea    D130(%rip),%r13
  jmp    L78
L53:
  movsbl %dil,%edi
  call   <tolower@plt>
  cmp    $0xa,%al
  cmove  %ebp,%eax
  mov    %al,(%rbx)
  add    $0x1,%rbx
  movzbl (%rbx),%edi
  test   %dil,%dil
  jne    L53
L63:
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <strtok@plt>
  mov    %rax,%rbx
  mov    %r13,%rsi
  mov    $0x0,%edi
  call   <strtok@plt>
  test   %rbx,%rbx
  jne    L117
L137:
  mov    %r15,%rdx
  lea    D104(%rip),%rsi
  mov    %r14,%rdi
  mov    $0x0,%eax
  call   <fprintf@plt>
  mov    $0x51,%edx
  mov    $0x0,%esi
  mov    %r12,%rdi
  call   <memset@plt>
  mov    0x8(%rsp),%rdx
  mov    $0x51,%esi
  mov    %r12,%rdi
  call   <fgets@plt>
  movzbl 0x10(%rsp),%edi
  lea    0x10(%rsp),%rbx
  mov    $0x0,%ebp
  test   %dil,%dil
  jne    L53
  jmp    L63
L117:
  mov    %rbx,%rdi
  call   <strlen@plt>
  cmp    $0x4,%eax
  jne    L37
  lea    D109(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L43
  lea    D43(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L85
  lea    D74(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L97
  mov    %r14,%rcx
  mov    $0x13,%edx
  mov    $0x1,%esi
  lea    D138(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x1a,%edx
  mov    $0x1,%esi
  lea    D93(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x1d,%edx
  mov    $0x1,%esi
  lea    D70(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x22,%edx
  mov    $0x1,%esi
  lea    D58(%rip),%rbx
  mov    %rbx,%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x24,%edx
  mov    $0x1,%esi
  lea    D6(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x22,%edx
  mov    $0x1,%esi
  mov    %rbx,%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x24,%edx
  mov    $0x1,%esi
  lea    D67(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x29,%edx
  mov    $0x1,%esi
  lea    D75(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rcx
  mov    $0x22,%edx
  mov    $0x1,%esi
  mov    %rbx,%rdi
  call   <fwrite@plt>
  jmp    L78
L37:
  mov    %rbx,%rdx
  lea    D21(%rip),%rsi
  mov    %r14,%rdi
  mov    $0x0,%eax
  call   <fprintf@plt>
L78:
  lea    0x10(%rsp),%r12
  jmp    L137
L97:
  mov    %rbx,%rdx
  lea    D41(%rip),%rsi
  mov    %r14,%rdi
  mov    $0x0,%eax
  call   <fprintf@plt>
  jmp    L78
L43:
  mov    $0x1,%eax
L33:
  mov    0x68(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L121
  add    $0x78,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L85:
  mov    $0x0,%eax
  jmp    L33
L121:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_label: D33
type_infered: string
name: read_data
arguments: data_label: D130
type_infered: string
name: read_data
arguments: data_label: D104
type_infered: string
name: read_data
arguments: data_label: D109
type_infered: string
name: read_data
arguments: data_label: D43
type_infered: string
name: read_data
arguments: data_label: D74
type_infered: string
name: read_data
arguments: data_label: D138
type_infered: string
name: read_data
arguments: data_label: D93
type_infered: string
name: read_data
arguments: data_label: D70
type_infered: string
name: read_data
arguments: data_label: D58
type_infered: string
name: read_data
arguments: data_label: D6
type_infered: string
name: read_data
arguments: data_label: D67
type_infered: string
name: read_data
arguments: data_label: D75
type_infered: string
name: read_data
arguments: data_label: D21
type_infered: string
name: read_data
arguments: data_label: D41
type_infered: string

tool: D33: LSN>

tool: D130:  

tool: D104: %s 

tool: D109: cont

tool: D43: exit

tool: D74: help

tool: D138: Listener commands:


tool: D93: EXIT        - end process


tool: D70: CONT        - resume process


tool: D58: SMAC        - display MAC address


tool: D6: SNOD XX.XXX - show node information


tool: D67: SETM xx...  - set local MAC address


tool: D75: LIST        - enter list definition mode


tool: D21: Bad command: %s


tool: D41: Command not implemented: %s


assistant: ```c
int parseCommands(FILE *cmds, FILE *out) {
  int exitLoop = 0;
  int retVal = 1;
  char line[81];
  char cmnd[5];
  char *p;
  char *a;
  while (exitLoop != 1) {
    fprintf(out, "%s ", "LSN>");
    memset(line, 0, 81);
    fgets(line, 81, cmds);
    for (p = line; *p; ++p) {
      *p = tolower(*p);
      if (*p == '\n')
        *p = 0;
    }
    p = strtok(line, " ");
    a = strtok(NULL, " ");
    if (p != NULL) {
      if (strlen(p) != 4) {
        fprintf(out, "Bad command: %s\n", p);
      } else {
        if (strcmp(p, "cont") == 0) {
          retVal = 1;
          exitLoop = 1;
        } else if (strcmp(p, "exit") == 0) {
          retVal = 0;
          exitLoop = 1;
        } else if (strcmp(p, "help") == 0) {
          fprintf(out, "Listener commands:\n");
          fprintf(out, "EXIT        - end process\n");
          fprintf(out, "CONT        - resume process\n");
          fprintf(out, "SMAC        - display MAC address\n");
          fprintf(out, "SNOD XX.XXX - show node information\n");
          fprintf(out, "SMAC        - display MAC address\n");
          fprintf(out, "SETM xx...  - set local MAC address\n");
          fprintf(out, "LIST        - enter list definition mode\n");
          fprintf(out, "SMAC        - display MAC address\n");
        } else {
          fprintf(out, "Command not implemented: %s\n", p);
        }
      }
    }
  }
  return retVal;
}
```