//golang实现读取exedllapk版本号packagemainimport("flag""fmt""log""os""path/filepath")import("github.com/lunny/axmlParser")var(filefileInfo)const(MZ="MZ"PE="PE"RSRC=".rsrc"TYPET=16PEOFFSET=64MACHINE=332DEFAULT=`C:\Windows\System32\cmd.exe`)typefileInfostruct{FilePathstringVersionstringDebugbool}func(f*fileInfo)checkError(errerror){iferr!=nil{log.Fatalln(err)}}//获取exedll版本func(f*fileInfo)GetExeVersion()(errerror){file,err:=os.Open(f.FilePath)f.checkError(err)//第一次读取64bytebuffer:=make([]byte,64)_,err=file.Read(buffer)f.checkError(err)deferfile.Close()str:=string(buffer[0])+string(buffer[1])ifstr!=MZ{log.Fatalln("读取exe错误,找不到MZ.",f.FilePath)}peOffset:=f.unpack([]byte{buffer[60],buffer[61],buffer[62],buffer[63]})ifpeOffset<PEOFFSET{log.Fatalln("peOffset读取错误.",f.FilePath)}//读取从文件开头移位到peOffset，第二次读取24byte_,err=file.Seek(int64(peOffset),0)buffer=make([]byte,24)_,err=file.Read(buffer)f.checkError(err)str=string(buffer[0])+string(buffer[1])ifstr!=PE{log.Fatalln("读取exe错误,找不到PE.",f.FilePath)}machine:=f.unpack([]byte{buffer[4],buffer[5]})ifmachine!=MACHINE{log.Fatalln("machine读取错误.",f.FilePath)}noSections:=f.unpack([]byte{buffer[6],buffer[7]})optHdrSize:=f.unpack([]byte{buffer[20],buffer[21]})//读取从当前位置移位到optHdrSize，第三次读取40bytefile.Seek(int64(optHdrSize),1)resFound:=falsefori:=0;i<int(noSections);i++{buffer=make([]byte,40)file.Read(buffer)str=string(buffer[0])+string(buffer[1])+string(buffer[2])+string(buffer[3])+string(buffer[4])ifstr==RSRC{resFound=truebreak}}if!resFound{log.Fatalln("读取exe错误,找不到.rsrc.",f.FilePath)}infoVirt:=f.unpack([]byte{buffer[12],buffer[13],buffer[14],buffer[15]})infoSize:=f.unpack([]byte{buffer[16],buffer[17],buffer[18],buffer[19]})infoOff:=f.unpack([]byte{buffer[20],buffer[21],buffer[22],buffer[23]})//读取从文件开头位置移位到infoOff，第四次读取infoSizebytefile.Seek(int64(infoOff),0)buffer=make([]byte,infoSize)_,err=file.Read(buffer)f.checkError(err)nameEntries:=f.unpack([]byte{buffer[12],buffer[13]})idEntries:=f.unpack([]byte{buffer[14],buffer[15]})varinfoFoundboolvarsubOff,iint64fori=0;i<(nameEntries+idEntries);i++{typeT:=f.unpack([]byte{buffer[i*8+16],buffer[i*8+17],buffer[i*8+18],buffer[i*8+19]})iftypeT==TYPET{infoFound=truesubOff=int64(f.unpack([]byte{buffer[i*8+20],buffer[i*8+21],buffer[i*8+22],buffer[i*8+23]}))break}}if!infoFound{log.Fatalln("读取exe错误,找不到typeT==16.",f.FilePath)}subOff=subOff&0x7fffffffinfoOff=f.unpack([]byte{buffer[subOff+20],buffer[subOff+21],buffer[subOff+22],buffer[subOff+23]})//offsetoffirstFILEINFOinfoOff=infoOff&0x7fffffffinfoOff=f.unpack([]byte{buffer[infoOff+20],buffer[infoOff+21],buffer[infoOff+22],buffer[infoOff+23]})//offsettodatadataOff:=f.unpack([]byte{buffer[infoOff],buffer[infoOff+1],buffer[infoOff+2],buffer[infoOff+3]})dataOff=dataOff-infoVirtversion1:=f.unpack([]byte{buffer[dataOff+48],buffer[dataOff+48+1]})version2:=f.unpack([]byte{buffer[dataOff+48+2],buffer[dataOff+48+3]})version3:=f.unpack([]byte{buffer[dataOff+48+4],buffer[dataOff+48+5]})version4:=f.unpack([]byte{buffer[dataOff+48+6],buffer[dataOff+48+7]})version:=fmt.Sprintf("%d.%d.%d.%d",version2,version1,version4,version3)f.Version=versionreturnnil}func(f*fileInfo)unpack(b[]byte)(numint64){fori:=0;i<len(b);i++{num=256*num+int64((b[len(b)-1-i]&0xff))}return}//获取apk版本func(f*fileInfo)GetApkVersion()(errerror){listener:=new(axmlParser.AppNameListener)_,err=axmlParser.ParseApk(f.FilePath,listener)f.checkError(err)f.Version=listener.VersionNamereturnnil}funcinit(){flag.StringVar(&file.FilePath,"path",DEFAULT,"Getexeordllorapkversioninformation.")flag.BoolVar(&file.Debug,"d",false,"iftrueprintexeordllfilename.")}funcmain(){flag.Parse()suffix:=filepath.Ext(file.FilePath)switchsuffix{case".exe",".dll":file.GetExeVersion()case".apk":file.GetApkVersion()default:log.Fatalln("仅能获取exe、dll、apk版本号,请重新输入程序路径.",file.FilePath)}switch{casefile.Debug:fmt.Printf("%s的版本号为:",file.FilePath)casefile.FilePath==DEFAULT:flag.PrintDefaults()fmt.Printf("%s的版本号为:",file.FilePath)}fmt.Printf("%s",file.Version)}