user: 这段汇编代码用C语言表示是什么样的:

```asm
<geturl>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  lea    0x1(%rdi),%rbx
  mov    $0x2,%edx
  mov    %rbx,%rsi
  lea    D119(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L167
  mov    $0x5,%edx
  mov    %rbx,%rsi
  lea    D80(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  jne    L62
L167:
  lea    D62(%rip),%rsi
  mov    %rbp,%rdi
  call   <tagoption@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L55
  cmpb   $0x23,(%rax)
  je     L30
  mov    $0x7,%edx
  mov    %rax,%rsi
  lea    D29(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L3
  mov    $0x23,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L55
  mov    $0x23,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  movb   $0x0,(%rax)
  jmp    L55
L62:
  mov    $0x5,%edx
  mov    %rbx,%rsi
  lea    D112(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L167
  mov    $0x5,%edx
  mov    %rbx,%rsi
  lea    D114(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L167
  mov    $0x4,%edx
  mov    %rbx,%rsi
  lea    D15(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L171
  mov    $0x8,%edx
  mov    %rbx,%rsi
  lea    D60(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  jne    L174
L171:
  lea    D14(%rip),%rsi
  mov    %rbp,%rdi
  call   <tagoption@plt>
  mov    %rax,%rbx
  jmp    L55
L174:
  mov    $0x6,%edx
  mov    %rbx,%rsi
  lea    D82(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L171
  mov    $0x6,%edx
  mov    %rbx,%rsi
  lea    D129(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L171
  mov    $0x7,%edx
  mov    %rbx,%rsi
  lea    D139(%rip),%rdi
  call   <strncasecmp@plt>
  test   %eax,%eax
  je     L171
  mov    $0x5,%edx
  mov    %rbx,%rsi
  lea    D99(%rip),%rdi
  call   <strncasecmp@plt>
  mov    $0x0,%ebx
  test   %eax,%eax
  jne    L55
  lea    D8(%rip),%rsi
  mov    %rbp,%rdi
  call   <tagoption@plt>
  mov    %rax,%rbx
  jmp    L55
L30:
  mov    $0x0,%ebx
  jmp    L55
L3:
  mov    $0x0,%ebx
L55:
  mov    %rbx,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

tool_calls: name: retrieve_data
arguments: label: D119
type_infered: string
name: retrieve_data
arguments: label: D80
type_infered: string
name: retrieve_data
arguments: label: D62
type_infered: string
name: retrieve_data
arguments: label: D29
type_infered: string
name: retrieve_data
arguments: label: D112
type_infered: string
name: retrieve_data
arguments: label: D114
type_infered: string
name: retrieve_data
arguments: label: D15
type_infered: string
name: retrieve_data
arguments: label: D60
type_infered: string
name: retrieve_data
arguments: label: D14
type_infered: string
name: retrieve_data
arguments: label: D82
type_infered: string
name: retrieve_data
arguments: label: D129
type_infered: string
name: retrieve_data
arguments: label: D139
type_infered: string
name: retrieve_data
arguments: label: D99
type_infered: string
name: retrieve_data
arguments: label: D8
type_infered: string

tool: D119: a 

tool: D80: area 

tool: D62: href

tool: D29: mailto:

tool: D112: base 

tool: D114: link 

tool: D15: img 

tool: D60: bgsound 

tool: D14: src

tool: D82: embed 

tool: D129: frame 

tool: D139: iframe 

tool: D99: body 

tool: D8: background

assistant: ```c
char *geturl(char *tag) {
  char *tmp;
  if (0)
    printf("geturl: %s\n", tag);
  if (!strncasecmp("a ", tag + 1, 2) || !strncasecmp("area ", tag + 1, 5) || !strncasecmp("base ", tag + 1, 5) || !strncasecmp("link ", tag + 1, 5)) {
    tmp = tagoption(tag, "href");
    if (!tmp)
      return NULL;
    if (tmp[0] == '#')
      return NULL;
    if (!strncasecmp("mailto:", tmp, 7))
      return NULL;
    if (strchr(tmp, '#'))
      *strchr(tmp, '#') = '\0';
    return tmp;
  }
  if (!strncasecmp("img ", tag + 1, 4) || !strncasecmp("bgsound ", tag + 1, 8) || !strncasecmp("embed ", tag + 1, 6) || !strncasecmp("frame ", tag + 1, 6) || !strncasecmp("iframe ", tag + 1, 7))
    return tagoption(tag, "src");
  if (!strncasecmp("body ", tag + 1, 5))
    return tagoption(tag, "background");
  return NULL;
}
```