user: 下面的汇编指令对应的C源代码是什么:

```asm
<append_all>:
  endbr64
  push   %r15
  mov    %ecx,%r15d
  push   %r14
  push   %r13
  mov    %rdx,%r13
  push   %r12
  push   %rbp
  push   %rbx
  movslq %edi,%rbx
  lea    D16(%rip),%rdi
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <opendir@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L78
L18:
  mov    0x0(%r13,%rbx,8),%r12
  mov    $0x1,%esi
  mov    %r12,%rdi
  call   <open_archive@plt>
  mov    %eax,%r14d
  cmp    $0xffffffff,%eax
  je     L56
  nopl   0x0(%rax)
L104:
  mov    %rbp,%rdi
  call   <readdir@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L128
L120:
  mov    (%rbx),%edi
  mov    %r12,%rsi
  call   <strcmp@plt>
  test   %eax,%eax
  je     L104
  mov    0x0(%r13),%rdi
  call   <basename@plt>
  mov    (%rbx),%edi
  mov    %rax,%rsi
  call   <strcmp@plt>
  test   %eax,%eax
  je     L104
  mov    (%rbx),%edi
  lea    0x4(%rsp),%rsi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  je     L72
  mov    0x4(%rsp),%edi
  call   <S_ISREG@plt>
  test   %rax,%rax
  je     L104
  mov    (%rbx),%edi
  mov    %r15d,%ecx
  mov    %r12,%rdx
  mov    %r14d,%esi
  call   <append_file@plt>
L38:
  mov    %rbp,%rdi
  call   <readdir@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  jne    L120
  nopl   0x0(%rax)
L128:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L37
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L72:
  lea    D11(%rip),%rdi
  call   <perror@plt>
  mov    %r12,%rdi
  call   <unlink@plt>
  mov    $0xffffffff,%edi
  call   <exit@plt>
  mov    0x4(%rsp),%edi
  call   <S_ISREG@plt>
  test   %rax,%rax
  je     L104
  mov    (%rbx),%edi
  mov    %r15d,%ecx
  mov    %r12,%rdx
  mov    %r14d,%esi
  call   <append_file@plt>
  jmp    L38
  nopw   0x0(%rax,%rax,1)
L56:
  lea    D28(%rip),%rdi
  call   <perror@plt>
  jmp    L104
  nopl   0x0(%rax)
L78:
  lea    D34(%rip),%rdi
  call   <perror@plt>
  mov    $0xffffffff,%edi
  call   <exit@plt>
  jmp    L18
L37:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D16
datatype: string
name: unpack_data
arguments: data_tag: D11
datatype: string
name: unpack_data
arguments: data_tag: D28
datatype: string
name: unpack_data
arguments: data_tag: D34
datatype: string

tool: D16: .

tool: D11: Error stating file

tool: D28: Error opening file

tool: D34: Error opening current directory

assistant: ```c
void append_all(int index, int argc, char **argv, int verbose) {
  DIR *dir;
  struct dirent *ent;
  struct stat st;
  dir = opendir(".");
  if (dir == NULL) {
    perror("Error opening current directory");
    exit(-1);
  }
  char *archive_name = argv[index];
  int ar_fd = open_archive(archive_name, 1);
  if (ar_fd == -1) {
    perror("Error opening file");
  }
  while ((ent = readdir(dir)) != NULL) {
    if (!strcmp(ent->d_name, archive_name) || !strcmp(ent->d_name, basename(argv[0]))) {
      ;
      continue;
    }
    if (stat(ent->d_name, &st) == -1) {
      perror("Error stating file");
      unlink(archive_name);
      exit(-1);
    }
    if (S_ISREG(st.st_mode)) {
      append_file(ent->d_name, ar_fd, archive_name, verbose);
    }
  }
}
```