user: 请从给定的汇编指令推导出C源代码:

```asm
<squirrel_http>:
  endbr64
  push   %r14
  push   %r13
  mov    %ecx,%r13d
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  cmp    $0x5,%ecx
  jbe    L65
  mov    $0x4,%edx
  lea    D23(%rip),%rsi
  mov    %rbx,%rdi
  call   <memcmp@plt>
  test   %rax,%rax
  jne    L238
L65:
  lea    0x4(%rsp),%rcx
  lea    D28(%rip),%rdx
  mov    %r13d,%esi
  mov    %rbx,%rdi
  call   <find_string@plt>
  test   %eax,%eax
  je     L110
  mov    0x4(%rsp),%eax
  cmp    %eax,%r13d
  ja     L114
  jmp    L135
  nopl   0x0(%rax,%rax,1)
L128:
  mov    0x4(%rsp),%edx
  cmpb   $0xa,(%rbx,%rdx,1)
  mov    %rdx,%rax
  mov    %edx,%ecx
  je     L32
  add    $0x1,%eax
  mov    %eax,0x4(%rsp)
  cmp    %r13d,%eax
  jae    L135
L114:
  movzbl (%rbx,%rax,1),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L128
  mov    0x4(%rsp),%eax
  mov    %eax,%ecx
  cmp    %eax,%r13d
  jbe    L135
  mov    %eax,%edx
L77:
  add    %rbx,%rdx
  mov    %ecx,%r14d
  jmp    L103
  nopw   0x0(%rax,%rax,1)
L154:
  add    $0x1,%r14d
  add    $0x1,%rdx
  cmp    %r14d,%r13d
  je     L11
L103:
  cmpb   $0xa,(%rdx)
  jne    L154
  jmp    L117
  nopl   0x0(%rax)
L142:
  lea    -0x1(%r14),%eax
  movzbl (%rbx,%rax,1),%edi
  mov    %rax,%r13
  call   <isspace@plt>
  test   %rax,%rax
  mov    0x4(%rsp),%eax
  je     L181
  mov    %r13d,%r14d
L117:
  cmp    %eax,%r14d
  ja     L142
L181:
  mov    %r14d,%ecx
  lea    (%rbx,%rax,1),%rdx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  sub    %eax,%ecx
  call   <squirrel_http_useragent@plt>
L110:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L111
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L11:
  mov    %r14d,%edx
  cmpb   $0xa,(%rbx,%rdx,1)
  jne    L110
  jmp    L117
  nopl   0x0(%rax,%rax,1)
L238:
  mov    $0x5,%edx
  lea    D4(%rip),%rsi
  mov    %rbx,%rdi
  call   <memcmp@plt>
  test   %rax,%rax
  je     L65
  jmp    L110
  nop
L32:
  cmp    %r13d,%edx
  jb     L77
  jmp    L167
  nopl   0x0(%rax,%rax,1)
L135:
  mov    %eax,%edx
  cmpb   $0xa,(%rbx,%rdx,1)
  jne    L110
  mov    0x4(%rsp),%ecx
L167:
  mov    %eax,%r14d
  mov    %ecx,%eax
  jmp    L181
L111:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D23
type_guessed: string
name: parse_data
arguments: data_tag: D28
type_guessed: string
name: parse_data
arguments: data_tag: D4
type_guessed: string

tool: D23: GET 

tool: D28: User-Agent:

tool: D4: POST 

assistant: ```c
void squirrel_http(struct Squirrel *squirrel, struct NetFrame *frame, const unsigned char *px, unsigned length) {
  unsigned u, n;
  if (length > 5) {
    if (memcmp(px, "GET ", 4) == 0 || memcmp(px, "POST ", 5) == 0)
      ;
    else
      return;
  }
  if (!find_string(px, length, "User-Agent:", &u))
    return;
  while (u < length && isspace(px[u]) && px[u] != '\n')
    u++;
  for (n = u; n < length && px[n] != '\n'; n++)
    ;
  if (px[n] != '\n')
    return;
  while (n > u && isspace(px[n - 1]))
    n--;
  squirrel_http_useragent(squirrel, frame, px + u, n - u);
}
```