user: 请从给定的汇编指令推导出C源代码:

```asm
<wfile_remove_dots>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L257
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L160
L257:
  movl   $0xffffffff,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  movl   $0x0,-0x10(%rbp)
  jmp    L184
L250:
  cmpl   $0x0,-0x8(%rbp)
  js     L234
  cmpl   $0x0,-0x4(%rbp)
  je     L234
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <wfile_eitherslash@plt>
  test   %rax,%rax
  je     L234
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L234
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x2(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L234
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x3(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <wfile_eitherslash@plt>
  test   %rax,%rax
  jne    L21
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x3(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L234
L21:
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x3(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L145
  mov    -0x10(%rbp),%eax
  add    $0x3,%eax
  jmp    L31
L145:
  mov    -0x10(%rbp),%eax
  add    $0x4,%eax
L31:
  mov    %eax,-0xc(%rbp)
  jmp    L15
L1:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x8(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x8(%rbp)
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0xc(%rbp)
L15:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L1
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  movl   $0xffffffff,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  movl   $0xffffffff,-0x10(%rbp)
  jmp    L49
L234:
  cmpl   $0x0,-0x8(%rbp)
  jns    L61
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L61
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <wfile_eitherslash@plt>
  test   %rax,%rax
  jne    L254
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L61
L254:
  mov    -0x10(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L291
  mov    -0x10(%rbp),%eax
  add    $0x1,%eax
  jmp    L263
L291:
  mov    -0x10(%rbp),%eax
  add    $0x2,%eax
L263:
  mov    %eax,-0xc(%rbp)
  jmp    L75
L141:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x8(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x8(%rbp)
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0xc(%rbp)
L75:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L141
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  movl   $0xffffffff,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  movl   $0xffffffff,-0x10(%rbp)
  jmp    L49
L61:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <wfile_eitherslash@plt>
  test   %rax,%rax
  je     L99
  movl   $0xffffffff,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L49
L99:
  cmpl   $0x0,-0x8(%rbp)
  jns    L195
  mov    -0x10(%rbp),%eax
  mov    %eax,-0x8(%rbp)
L195:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  je     L49
  movl   $0xffffffff,-0x4(%rbp)
L49:
  addl   $0x1,-0x10(%rbp)
L184:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L250
  jmp    L283
L160:
  nop
L283:
  leave
  ret
```

assistant: ```c
void wfile_remove_dots(char *s) {
  int i, j, ppos, nondot;
  if (s[0] == '.' && s[1] == '\0')
    return;
  ppos = -1;
  nondot = 0;
  for (i = 0; s[i] != '\0'; i++) {
    if (ppos >= 0 && nondot && wfile_eitherslash(s[i]) && s[i + 1] == '.' && s[i + 2] == '.' && (wfile_eitherslash(s[i + 3]) || s[i + 3] == '\0')) {
      for (j = s[i + 3] == '\0' ? i + 3 : i + 4; s[j] != '\0'; j++)
        s[ppos++] = s[j];
      s[ppos] = '\0';
      ppos = -1;
      nondot = 0;
      i = -1;
      continue;
    }
    if (ppos < 0 && s[i] == '.' && (wfile_eitherslash(s[i + 1]) || s[i + 1] == '\0')) {
      for (ppos = i, j = (s[i + 1] == '\0') ? i + 1 : i + 2; s[j] != '\0'; j++)
        s[ppos++] = s[j];
      s[ppos] = '\0';
      ppos = -1;
      nondot = 0;
      i = -1;
      continue;
    }
    if (wfile_eitherslash(s[i])) {
      ppos = -1;
      nondot = 0;
    } else {
      if (ppos < 0)
        ppos = i;
      if (s[i] != '.')
        nondot = -1;
    }
  }
}
```