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

```asm
<get_drives>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x228,%rsp
  mov    %rdi,0x8(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x218(%rsp)
  xor    %eax,%eax
  lea    D15(%rip),%rdi
  call   <opendir@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L2
L47:
  mov    $0x0,%r15d
  lea    D17(%rip),%r12
  lea    D31(%rip),%r13
L37:
  mov    %r15d,%r14d
L29:
  mov    %rbp,%rdi
  call   <readdir@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L35
  mov    %r12,%rsi
  mov    (%rbx),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L29
  mov    %r13,%rsi
  mov    (%rbx),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L29
  mov    $0x8,%edi
  call   <malloc@plt>
  mov    %rax,%rdi
  mov    %rax,0x10(%rsp,%r15,8)
  mov    $0x8,%edx
  mov    (%rbx),%rsi
  call   <strncpy@plt>
  add    $0x1,%r15
  jmp    L37
L2:
  lea    D30(%rip),%rdi
  call   <write_debug@plt>
  lea    D42(%rip),%rdi
  call   <opendir@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  jne    L47
  mov    $0x0,%r14d
  jmp    L80
L35:
  mov    %rbp,%rdi
  call   <closedir@plt>
  lea    0x0(,%r14,8),%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  test   %r14d,%r14d
  jle    L80
  mov    %r15d,%r15d
L31:
  mov    0x10(%rsp,%rbx,8),%r12
  mov    %r12,%rdi
  call   <strlen@plt>
  lea    0x1(%rax),%edi
  call   <malloc@plt>
  mov    %rax,%r13
  mov    %rax,0x0(%rbp,%rbx,8)
  mov    %r12,%rdi
  call   <strlen@plt>
  mov    %rax,%rdx
  mov    %r12,%rsi
  mov    %r13,%rdi
  call   <strncpy@plt>
  mov    %r12,%rdi
  call   <strlen@plt>
  mov    0x0(%rbp,%rbx,8),%rdx
  movb   $0x0,(%rdx,%rax,1)
  add    $0x1,%rbx
  cmp    %r15,%rbx
  jne    L31
L80:
  mov    0x8(%rsp),%rax
  mov    %r14d,(%rax)
  mov    0x218(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L19
  mov    %rbp,%rax
  add    $0x228,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L19:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: tag: D15
datatype: string
name: retrieve_data
arguments: tag: D17
datatype: string
name: retrieve_data
arguments: tag: D31
datatype: string
name: retrieve_data
arguments: tag: D30
datatype: string
name: retrieve_data
arguments: tag: D42
datatype: string

tool: D15: /sys/class/scsi_generic

tool: D17: .

tool: D31: ..

tool: D30: Cannot open /sys/class/scsi_generic


tool: D42: /sys/block

assistant: ```c
char **get_drives(int *driveNum) {
  DIR *d;
  struct dirent *ent;
  char *tmp[64];
  char **ret;
  int j, jj;
  d = opendir("/sys/class/scsi_generic");
  if (!d) {
    write_debug("Cannot open /sys/class/scsi_generic\n");
    d = opendir("/sys/block");
    if (!d) {
      *driveNum = 0;
      return NULL;
    }
  }
  j = 0;
  while ((ent = readdir(d))) {
    if (strcmp(ent->d_name, ".") != 0 && strcmp(ent->d_name, "..") != 0) {
      tmp[j] = malloc(sizeof(ent->d_name));
      strncpy(tmp[j], ent->d_name, sizeof(ent->d_name));
      ++j;
    }
  }
  closedir(d);
  ret = malloc(j * sizeof(char *));
  for (jj = 0; jj < j; ++jj) {
    ret[jj] = malloc(strlen(tmp[jj]) + 1);
    strncpy(ret[jj], tmp[jj], strlen(tmp[jj]));
    ret[jj][strlen(tmp[jj])] = '\0';
  }
  *driveNum = j;
  return ret;
}
```