// 
// strnlen from 0x1801340e4 to 0x180134234 (336 bytes)
// 
// 2 xrefs:
// > common_getenv<char> @ 0x180128cef
// > unknown_libname_53 @ 0x18012ebc6
// 
// This function is hookable on this platform!
// 
// Using BromaIDA 8.0.0 @ https://github.com/Stazzical/BromaIDA
// Using bindings at commit ba9f177b at Thu Jul 16 22:52:06 2026 from https://github.com/geode-sdk/bindings
// 

size_t __cdecl strnlen(const char *String, size_t MaxCount)
{
  const char *v4; // r9
  size_t v5; // r10
  const char *v6; // rax
  const char *v7; // rcx
  size_t v8; // rcx
  const char *v9; // r8
  size_t v11; // r10
  const char *v12; // rax
  const char *v13; // rcx
  const char *v14; // r8
  const char *i; // rax

  v4 = String;
  if ( dword_1801B1700 < 5 )
  {
    if ( dword_1801B1700 < 1 )
    {
      for ( i = &String[MaxCount]; String != i; ++String )
      {
        if ( !*String )
          break;
      }
      return String - v4;
    }
    v11 = (16LL - ((unsigned __int8)String & 0xF)) & -(__int64)(((unsigned __int8)String & 0xF) != 0);
    v12 = String;
    if ( MaxCount < v11 )
      v11 = MaxCount;
    v13 = &String[v11];
    if ( v4 != &v4[v11] )
    {
      do
      {
        if ( !*v12 )
          break;
        ++v12;
      }
      while ( v12 != v13 );
    }
    v8 = v12 - v4;
    if ( v12 - v4 == v11 )
    {
      String = v12;
      v14 = &v12[(MaxCount - v11) & 0xFFFFFFFFFFFFFFF0uLL];
      if ( v12 != v14 )
      {
        do
        {
          if ( _mm_movemask_epi8(_mm_cmpeq_epi8((__m128i)0LL, *(__m128i *)String)) )
            break;
          String += 16;
        }
        while ( String != v14 );
      }
      while ( String != &v4[MaxCount] && *String )
        ++String;
      return String - v4;
    }
  }
  else
  {
    v5 = (32LL - ((unsigned __int8)String & 0x1F)) & -(__int64)(((unsigned __int8)String & 0x1F) != 0);
    v6 = String;
    if ( MaxCount < v5 )
      v5 = MaxCount;
    v7 = &String[v5];
    if ( v4 != v7 )
    {
      do
      {
        if ( !*v6 )
          break;
        ++v6;
      }
      while ( v6 != v7 );
    }
    v8 = v6 - v4;
    if ( v6 - v4 == v5 )
    {
      String = v6;
      v9 = &v6[(MaxCount - v5) & 0xFFFFFFFFFFFFFFE0uLL];
      if ( v6 != v9 )
      {
        do
        {
          __asm
          {
            vpxor   xmm1, xmm1, xmm1
            vpcmpeqb ymm1, ymm1, ymmword ptr [rcx]
            vpmovmskb eax, ymm1
          }
          __asm { vzeroupper }
          if ( _EAX )
            break;
          String += 32;
        }
        while ( String != v9 );
      }
      while ( String != &v4[MaxCount] && *String )
        ++String;
      return String - v4;
    }
  }
  return v8;
}