// C-Zkkov-KW
void *__fastcall des(char *a1)
{
  char *v1; // r12@1
  const void *v2; // r15@1
  __int64 v3; // rbx@1
  void *v4; // rdi@1
  size_t v5; // rax@3
  void *v6; // rax@3
  void *v7; // r14@3
  size_t v8; // rax@3
  const char v9; // al@3
  __int64 v10; // rbx@3
  signed int i; // er15@4
  char v12; // cl@11

  v1 = a1;
  v2 = pthread_getspecific((unsigned int)g_tls_index);
  v3 = (unsigned int)(*(_DWORD *)v2 + 1);
  v4 = (void *)*((_QWORD *)v2 + v3);
  if ( v4 )
    free(v4);
  v5 = strlen(v1);
  v6 = malloc(v5 + 1);
  v7 = v6;
  *((_QWORD *)v2 + v3) = v6;
  *(_QWORD *)v2 = (unsigned int)v3 % 0xA;
  pthread_setspecific((unsigned int)g_tls_index, v2);
  v8 = strlen(v1);
  __bzero(v7, v8 + 1);
  v9 = *v1;
  v10 = 0LL;
  if ( *v1 )
  {
    for ( i = 1; ; ++i )
    {
      if ( v9 == 35 )
      {
        *((_BYTE *)v7 + v10) = 47;
        goto LABEL_16;
      }
      if ( v9 == 47 )
      {
        *((_BYTE *)v7 + v10) = 35;
        goto LABEL_16;
      }
      if ( (unsigned __int8)(v9 - 97) <= 0x19u )
        break;
      if ( (unsigned __int8)(v9 - 65) <= 0x19u )
      {
        v12 = -101;
        goto LABEL_14;
      }
      *((_BYTE *)v7 + v10) = v9;
LABEL_16:
      v10 = (unsigned int)i;
      if ( (unsigned int)i >= strlen(v1) )
        return v7;
      v9 = v1[i];
    }
    v12 = -37;
LABEL_14:
    *((_BYTE *)v7 + v10) = v12 - v9;
    goto LABEL_16;
  }
  return v7;
}

[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)