user: 请将以下的汇编代码转换成C语言代码:

```asm
<find_http_req>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdx,0x8(%rsp)
  cmp    $0x27,%rsi
  ja     L102
L128:
  add    $0x28,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopw   0x0(%rax,%rax,1)
L102:
  mov    %rcx,%r15
  lea    D43(%rip),%rdx
  mov    $0x4,%ecx
  mov    %rsi,%rbx
  call   <memstr@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L137
L113:
  lea    0x4(%rbp),%r14
  mov    %r12,%rax
  mov    %rbx,%rsi
  mov    $0x2,%ecx
  sub    %r14,%rax
  lea    D24(%rip),%rdx
  mov    %r14,%rdi
  sub    %rax,%rsi
  mov    %rsi,0x10(%rsp)
  call   <memstr@plt>
  mov    0x10(%rsp),%rsi
  test   %rax,%rax
  mov    %rax,%r13
  je     L28
  lea    0x5(%rbp),%r10
  lea    0x2(%rax),%r9
  cmp    %rax,%r10
  mov    %r10,0x10(%rsp)
  jbe    L117
L37:
  mov    %r9,%r12
  jmp    L128
  nop
L117:
  lea    -0x9(%rax),%rdi
  mov    $0x8,%edx
  mov    %r9,0x18(%rsp)
  lea    D26(%rip),%rsi
  call   <memcmp@plt>
  mov    0x18(%rsp),%r9
  mov    0x10(%rsp),%r10
  test   %rax,%rax
  jne    L37
  movzbl -0x1(%r13),%esi
  lea    D18(%rip),%rdi
  mov    %r9,0x10(%rsp)
  mov    %r10,0x18(%rsp)
  call   <strchr@plt>
  mov    0x10(%rsp),%r9
  test   %eax,%eax
  je     L37
  mov    %r12,%rax
  mov    %rbx,%rsi
  mov    $0x4,%ecx
  mov    %r9,%rdi
  sub    %r9,%rax
  lea    D57(%rip),%rdx
  sub    %rax,%rsi
  mov    %rsi,0x10(%rsp)
  call   <memstr@plt>
  mov    0x18(%rsp),%r10
  test   %rax,%rax
  je     L122
  lea    D54(%rip),%r12
  mov    $0x7,%edx
  mov    %r14,%rdi
  mov    %r10,0x10(%rsp)
  mov    %r12,%rsi
  mov    %rax,0x18(%rsp)
  call   <memcmp@plt>
  mov    0x10(%rsp),%r10
  mov    0x18(%rsp),%r9
  test   %rax,%rax
  jne    L95
  mov    $0x7,%edx
  mov    %r12,%rsi
  mov    %r10,%rdi
  mov    %r9,0x10(%rsp)
  call   <memcmp@plt>
  mov    0x10(%rsp),%r9
  test   %rax,%rax
  je     L71
L95:
  mov    %r9,%rsi
  mov    $0x8,%ecx
  mov    %r13,%rdi
  mov    %r9,0x10(%rsp)
  sub    %r13,%rsi
  lea    D12(%rip),%rdx
  add    $0x2,%rsi
  call   <memstr@plt>
  mov    0x10(%rsp),%r9
  test   %rax,%rax
  je     L129
L71:
  mov    0x8(%rsp),%rax
  mov    %rbp,(%rax)
  mov    %r9,%rax
  sub    %rbp,%rax
  mov    %rax,(%r15)
L129:
  lea    0x4(%r9),%r12
  jmp    L128
  cs nopw 0x0(%rax,%rax,1)
L137:
  mov    $0x5,%ecx
  lea    D22(%rip),%rdx
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <memstr@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  jne    L113
L127:
  lea    -0x4(%r12,%rbx,1),%r12
  jmp    L128
  nopl   (%rax)
L28:
  cmp    $0x4000,%rsi
  cmova  %r14,%rbp
  mov    %rbp,%r12
  jmp    L128
  nopl   0x0(%rax,%rax,1)
L122:
  mov    0x10(%rsp),%rsi
  cmp    $0x4000,%rsi
  ja     L127
  mov    %rbp,%r12
  jmp    L128
```

tool_calls: name: parse_data
arguments: tag: D43
type_guessed: string
name: parse_data
arguments: tag: D24
type_guessed: string
name: parse_data
arguments: tag: D26
type_guessed: string
name: parse_data
arguments: tag: D18
type_guessed: string
name: parse_data
arguments: tag: D57
type_guessed: string
name: parse_data
arguments: tag: D54
type_guessed: string
name: parse_data
arguments: tag: D12
type_guessed: string
name: parse_data
arguments: tag: D22
type_guessed: string

tool: D43: GET 

tool: D24: 


tool: D26:  HTTP/1.

tool: D18: 01

tool: D57: 



tool: D54: http://

tool: D12: 
Host: 

tool: D22: POST 

assistant: ```c
unsigned char *find_http_req(const unsigned char *data, const size_t len, unsigned char **http, size_t *httplen) {
  unsigned char *req, *le, *blankline, *hosthdr;
  if (len < 40)
    return (unsigned char *)data;
  if (!(req = memstr(data, len, (unsigned char *)"GET ", 4)))
    if (!(req = memstr(data, len, (unsigned char *)"POST ", 5)))
      return (unsigned char *)(data + len - 4);
  if (!(le = memstr(req + 4, (len - (data - (req + 4))), (unsigned char *)"\r\n", 2))) {
    if ((len - (data - (req + 4))) > 16384)
      return (unsigned char *)(req + 4);
    else
      return (unsigned char *)req;
  }
  if (le < req + 5)
    return le + 2;
  if (memcmp(le - 9, " HTTP/1.", 8) || !strchr("01", (int)*(le - 1)))
    return le + 2;
  if (!(blankline = memstr(le + 2, (len - (data - (le + 2))), (unsigned char *)"\r\n\r\n", 4))) {
    if ((len - (data - (le + 2))) > 16384)
      return (unsigned char *)(data + len - 4);
    else
      return req;
  }
  if (memcmp(req + 4, "http://", 7) == 0 && memcmp(req + 5, "http://", 7) == 0)
    goto found;
  if (!(hosthdr = memstr(le, blankline - le + 2, (unsigned char *)"\r\nHost: ", 8))) {
    return blankline + 4;
  }
found:
  *http = req;
  *httplen = blankline - req;
  return blankline + 4;
}
```