二进制转换为C语言数组-Python实现

来源：互联网发布：java实战1200例 1 编辑：程序博客网时间：2024/05/21 04:01

下面的Python程序可以实现将一个二进制文件转换为C语言的数组格式：

#!/usr/bin/pythonimport sysDEBUG = Falsedef printline():    print '-'*80def ShowCmdArgs():    i = 0    for arg in sys.argv:        print 'arg', i, ':', arg        i = i + 1def usage():    progname = sys.argv[0]    printline()    print 'Usage:'    print 'bin2C.py -i binfilename -o cfilename'    printline()def readbin(filename=''):    if filename == '':        return ''    else:        lines = ''        try:            fd = open(filename, 'rb')        except:            print 'Open ' + filename + ' Fail!'            return ''        else:            buff = fd.read()            fd.close()            return buffdef main():    iname = ''    oname = ''    if DEBUG:        ShowCmdArgs()    if len(sys.argv) == 3:        if sys.argv[1] == '-i':            iname = sys.argv[2]        else:            usage()            return    elif len(sys.argv) == 5:        if sys.argv[1] == '-i':            iname = sys.argv[2]            if sys.argv[3] == '-o':                oname = sys.argv[4]            else:                usage()                return        elif sys.argv[1] == '-o':            oname = sys.argv[2]            if sys.argv[3] == '-i':                iname = sys.argv[4]            else:                usage()                return        else:            usage()            return    else:        usage()        return    if iname != '':        print 'In: ' + iname    if oname != '':        print 'Out: ' + oname    ibuff = readbin(iname)    #print ibuff    keystring = ''    keyidx = 0    for key in ibuff:        if ((keyidx + 1) % 8) == 0:            keystring = keystring + '0x%02x' % ord(key)            keystring = keystring + '\n'        else:            keystring = keystring + '0x%02x ' % ord(key)        keyidx = keyidx + 1    if oname == '':        print keystring    else:        try:            fd = open(oname, 'w')        except:            print 'Open ' + oname + ' Fail'        else:            fd.write(keystring)            fd.close()    print 'Tatol len: ' + str(keyidx)main()

代码写得比较匆忙，但经验证可用。

顺便贴出一个base64格式的pem文件转换为C格式的pyhon实现：

#!/usr/bin/pythonimport base64import sysDEBUG = Falsedef printline():    print '-'*80def ShowCmdArgs():    i = 0    for arg in sys.argv:        print 'arg', i, ':', arg        i = i + 1def usage():    progname = sys.argv[0]    printline()    print 'Usage:'    print 'pem2C.py -i pemfilename -o cfilename'    printline()def readpem(filename=''):    if filename == '':        return ''    else:        lines = ''        linenum = 0        try:            fd = open(filename, 'r')        except:            print 'Open ' + filename + ' Fail!'            return ''        else:            for line in fd:                if '---' in line:                    pass                else:                    for ch in line:                        if ch == '\n' or ch == '\r':                            pass                        else:                            lines = lines + ch            fd.close()            return linesdef main():    iname = ''    oname = ''    if DEBUG:        ShowCmdArgs()    if len(sys.argv) == 3:        if sys.argv[1] == '-i':            iname = sys.argv[2]        else:            usage()            return    elif len(sys.argv) == 5:        if sys.argv[1] == '-i':            iname = sys.argv[2]            if sys.argv[3] == '-o':                oname = sys.argv[4]            else:                usage()                return        elif sys.argv[1] == '-o':            oname = sys.argv[2]            if sys.argv[3] == '-i':                iname = sys.argv[4]            else:                usage()                return        else:            usage()            return    else:        usage()        return    if iname != '':        print 'In: ' + iname    if oname != '':        print 'Out: ' + oname    pem = readpem(iname)    print pem    keys = base64.b64decode(pem)    keystring = ''    keyidx = 0    for key in keys:        if ((keyidx + 1) % 8) == 0:            keystring = keystring + '0x%02x' % ord(key)            keystring = keystring + '\n'        else:            keystring = keystring + '0x%02x ' % ord(key)        keyidx = keyidx + 1    if oname == '':        print keystring    else:        try:            fd = open(oname, 'w')        except:            print 'Open ' + oname + ' Fail'        else:            fd.write(keystring)            fd.close()    print 'Tatol len: ' + str(keyidx)main()

此程序可以将BASE64编码格式的pem文件或crt文件转换为二进制，然后在转换为C语言数值格式。