user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x218,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x208(%rsp)
  xor    %eax,%eax
  cmp    $0x2,%edi
  je     L63
  lea    D56(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%eax
L41:
  mov    0x208(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L9
  add    $0x218,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L63:
  mov    0x8(%rsi),%rdi
  mov    %rsi,%rbp
  call   <opendir@plt>
  mov    0x8(%rbp),%rsi
  mov    %rax,%r12
  test   %rax,%rax
  je     L30
  lea    D45(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
L94:
  lea    0x10(%rsp),%rbx
  mov    %rsp,%r13
  jmp    L54
  nopl   0x0(%rax,%rax,1)
L38:
  mov    0x8(%rbp),%rsi
  mov    (%r15),%r14
  mov    %rbx,%rdi
  call   <strcpy@plt>
  lea    D92(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcat@plt>
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <strcat@plt>
  mov    %r13,%rsi
  mov    %rbx,%rdi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  je     L48
  mov    (%r15),%rsi
  lea    D30(%rip),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L47
L54:
  mov    %r12,%rdi
  call   <readdir@plt>
  mov    %rax,%r15
  test   %rax,%rax
  jne    L38
  xor    %eax,%eax
  jmp    L41
L48:
  lea    D42(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x3,%eax
  jmp    L41
L47:
  mov    (%r15),%rsi
  lea    D78(%rip),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L94
  mov    (%r15),%rsi
  lea    D26(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x8(%rsp),%rsi
  lea    D36(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    %r13,%rdi
  call   <ctime@plt>
  lea    D22(%rip),%rdi
  mov    %rax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L94
L30:
  lea    D69(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x2,%eax
  jmp    L41
L9:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D56
datatype: string
name: extract_symbolic_data
arguments: data_tag: D45
datatype: string
name: extract_symbolic_data
arguments: data_tag: D92
datatype: string
name: extract_symbolic_data
arguments: data_tag: D30
datatype: string
name: extract_symbolic_data
arguments: data_tag: D42
datatype: string
name: extract_symbolic_data
arguments: data_tag: D78
datatype: string
name: extract_symbolic_data
arguments: data_tag: D26
datatype: string
name: extract_symbolic_data
arguments: data_tag: D36
datatype: string
name: extract_symbolic_data
arguments: data_tag: D22
datatype: string
name: extract_symbolic_data
arguments: data_tag: D69
datatype: string

tool: D56: Not enough command line arguments

tool: D45: Directory: %s


tool: D92: /

tool: D30: .

tool: D42: Error

tool: D78: ..

tool: D26:   File: %s


tool: D36:     File size: %lld bytes


tool: D22:     Last modification: %s

tool: D69: Cannot open directory: %s


assistant: ```c
int main(int argc, char *argv[]) {
  char filename[500];
  struct stat fileStats;
  if (argc != 2) {
    printf("Not enough command line arguments\n");
    return 1;
  } else {
    DIR *dp = NULL;
    struct dirent *dptr = NULL;
    if (NULL == (dp = opendir(argv[1]))) {
      printf("Cannot open directory: %s\n", argv[1]);
      return 2;
    } else {
      printf("Directory: %s\n", argv[1]);
      while (NULL != (dptr = readdir(dp))) {
        const char *dirname = dptr->d_name;
        strcpy(filename, argv[1]);
        strcat(filename, "/");
        strcat(filename, dirname);
        if (stat(filename, &fileStats) == -1) {
          printf("Error");
          return 3;
        }
        if ((strcmp(".", dptr->d_name) != 0) && (strcmp("..", dptr->d_name) != 0)) {
          printf("  File: %s\n", dptr->d_name);
          printf("    File size: %lld bytes\n", (long long)fileStats.st_size);
          printf("    Last modification: %s", ctime(&fileStats.st_mtime));
        }
      }
    }
  }
  return 0;
}
```