////////////////////////////////
// PE Get Section Function

static RangePtr
pe_img_get_section(void *image_raw, String8 name){
  U8 *image = (U8*)image_raw;
  
  // dos header
  PE_DosHeader *dos_header = (PE_DosHeader*)(image);
  if (dos_header->magic != PE_MSDOS_MAGIC){
    dos_header = 0;
  }
  
  // coff header
  PE_CoffHeader *coff_header = 0;
  U64 after_coff_header_offset = 0;
  if (dos_header != 0){
    U64 pe_signature_offset  = dos_header->coff_file_offset;
    U64 coff_header_offset   = pe_signature_offset + sizeof(U32);
    U32 pe_signature = *(U32*)(image + pe_signature_offset);
    if (pe_signature == PE_SIGNATURE){
      coff_header = (PE_CoffHeader*)(image + coff_header_offset);
      after_coff_header_offset = coff_header_offset + sizeof(*coff_header);
    }
  }
  
  // section table offset & count
  U32 section_table_offset = 0;
  U32 section_count = 0;
  if (coff_header != 0){
    section_table_offset = (  after_coff_header_offset
                            + coff_header->optional_header_size);
    section_count = coff_header->section_count;
  }
  
  // scan section table
  PE_SectionHeader *match = 0;
  {
    PE_SectionHeader *sec = (PE_SectionHeader*)(image + section_table_offset);
    for (U32 i = 0; i < section_count; i += 1, sec += 1){
      U8 *secptr = sec->name;
      U8 *secopl = sec->name + sizeof(sec->name);
      U8 *keyptr = name.str;
      U8 *keyopl = name.str + name.size;
      B32 string_match = 1;
      for (;*secptr != 0 && secptr < secopl && keyptr < keyopl;
           secptr += 1, keyptr += 1){
        if (*secptr != *keyptr){
          string_match = 0;
          break;
        }
      }
      if (string_match){
        match = sec;
        break;
      }
    }
  }
  
  // fill result
  RangePtr result = {0};
  if (match != 0){
    result.first = image + match->voff;
    result.opl   = result.first + match->vsize;
  }
  
  return(result);
}