Golang get exe, DLL, APK version number

Tag:golang    get EXE version     get DLL version     get APK version    

 golang  Implement read exe dll apk  version number package mainimport  (     " Flag "     fmt"      "Log"      "OS"       "Path/filepath") import  (     "Github.com/lunny/axmlparser") var  (     file fileinfo) const  (    MZ        =  "MZ"     PE       =  "PE"      RSRC     =  ". RSRC"     TYPET     = 16    PEOFFSET = 64    MACHINE   = 332    DEFAULT  =  ' C:\Windows\System32\cmd.exe ') type  fileinfo struct {    filepath string    version   string    debug    bool}func  (F *fileinfo)  checkerror (err error)  {     if err != nil {        log. Fatalln (Err)     }}//  get Exe dll version func  (f *fileinfo)  getexeversion ( )   (Err error)  {    file, err := os. Open (F.filepath)     f.checkerror (ERR)     //  first read 64 byte     buffer := make ([]byte, 64)     _, err =  file. Read (buffer)     f.checkerror (ERR)     defer file. Close ()     str := string (buffer[0])  + string (buffer[1])      if str != mz {        log. Fatalln ("Read EXE error, unable to find &NBSP;MZ.",  f.filepath)     }    peoffset := f.unpack ([]byte{buffer[60], buffer[61], buffer[62], &NBSP;BUFFER[63]})     if peOffset < PEOFFSET {         log. Fatalln ("peoffset  read error.",  f.filepath)     }    //  Reads from the beginning of the file to  peoffset, and reads the  24 byte    _, err = file for the second time. Seek (Int64 (Peoffset),  0)     buffer = make ([]byte, 24)      _, err = file. Read (buffer)     f.checkerror (ERR)     str = string (buffer[0])  + string (buffer[1])     if str != PE {         log. Fatalln ("Read EXE error, unable to find  pe.",  f.filepath)     }    machine  : = f.unpack ([]byte{buffer[4], bUFFER[5]})     if machine != MACHINE {         log. Fatalln ("machine  read error.",  f.filepath)     }    nosections  := f.unpack ([]byte{buffer[6], buffer[7]})     optHdrSize :=  F.unpack ([]byte{buffer[20], buffer[21]})     //  read shift from current position to  opthdrsize, third read  40 byte    file. Seek (Int64 (opthdrsize),  1)     resfound := false    for  i := 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])         if str ==  Rsrc {            resfound = true             break         }    }    if !resFound {         log. Fatalln ("Read EXE error, unable to find &NBSP;.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], &NBSP;BUFFER[23]})     //  read from the beginning of the file to  infooff, fourth read  infosize  Byte    file. 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]})     var infofound bool    var suboff , i int64    for i = 0; i <  (nameEntries +  identries);  i++ {        typet := f.unpack ([ ]BYTE{BUFFER[I*8+16],&NBSP;BUFFER[I*8+17],&NBSP;BUFFER[I*8+18],&NBSP;BUFFER[I*8+19]})          if typeT == TYPET {             infofound =  True            suboff = 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 ("Read EXE error, unable to find  typet == 16.",  f.filepath)     }     suboff = suboff & 0x7fffffff    infooff = f.unpack ([]byte{buffer[suboff+20], buffer[suboff+21], buffer[suboff+22], buffer[suboff+23]})  // offset of first fileinfo    infooff = infooff &  0x7fffffff    infooff = f.unpack ([]byte{buffer[infooff+20], buffer[infooff+ 21],&nBSP;BUFFER[INFOOFF+22],&NBSP;BUFFER[INFOOFF+23]})  //offset to data     Dataoff := f.unpack ([]byte{buffer[infooff], buffer[infooff+1], buffer[infooff+2],  BUFFER[INFOOFF+3]})     dataOff = dataOff - infoVirt     version1 := 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 = version    return nil}func  (F *fileInfo) &NBSp;unpack (b []byte)   (Num int64)  {    for i := 0; i  < len (b);  i++ {        num = 256*num  + int64 ((B[len (b) -1-i] & 0xff))     }     return}//  Get  apk  version func  (f *fileinfo)  getapkversion ()   (Err error)  {    listener := new (Axmlparser.appnamelistener)     _,  err = axmlparser.parseapk (F.filepath, listener)     f.checkerror (ERR)     f.version = listener. Versionname    return nil}func init ()  {    flag. Stringvar (&file. filepath,  "path", default,  "get exe or dll or apk version  Information. ")     flag. Boolvar (&file. Debug,  "D", false,  "If true print exe or dll file name.")} Func main ()  {    flag. Parse ()     suffix := filepath. Ext (file. FilePath)     switch suffix {    case  ". exe",  ". dll ":         file. Getexeversion ()     case  ". apk":         file. Getapkversion ()     default:        log. Fatalln ("Can only get exe, DLL, APK version number, please re-enter the program path."),  file. FilePath)     }    switch {    case file. Debug:        fmt. Printf ("%s  version number is: ",  file. FilePath)     case file. Filepath == default:        flag. PrintdefaulTS ()         fmt. Printf ("%s  version number is: ",  file. FilePath)     }    fmt. Printf ("%s",  file. Version)}

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Golang get exe, DLL, APK version number