[讨论]请教一个C++新手的问题

新手, 请教, 讨论

本帖最后由 saitojie 于 2010-5-24 09:11 编辑

[讨论]请教一个C++新手的问题
信息来源：邪恶八进制信息安全团队（www.eviloctal.com）
议题作者：--------
文章备注：修改zhouzhen[E.S.T]发布的一个程序,希望实现修改各时间项.

虽有想改之心,却没实力,现在将代码贴出来,希望得到前辈的帮助.
我改来改去,总有错,而且也没达到目的.

#include <stdafx.h>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>

void usage()
{
      system("cls.exe");
      printf("-------------------------------------------------------\n"
            "\tsetTime Ver 1.0  zhouzhen[E.S.T], 2005/3/5\n"
            "\thttp://www.eviloctal.com, zhouzhen@yeah.net\n"
            "\t    文件时间修改器 1.0"
            "\n\n"
            "\tUsage:  \tsetTime File CreationTime LastWriteTime LastAccessTime\n"
            "\tExample: \tsetTime hello.asp 20080101181212 1 1\n"
            "\t非时间格式则不修改那一项\n"
            "--------------------------------------------------------\n"
            );
      exit(0);
}

void atotime(char* timestr,FILETIME ftime)
{
      if(strlen(timestr)!=14)
            return ;

      char yy[4]={0},mm[2]={0},dd[2]={0},ho[2]={0},mi[2]={0},se[2]={0};//年月日时分秒
      yy[0]=timestr[0];yy[1]=timestr[1];yy[2]=timestr[2];yy[3]=timestr[3];yy[4]='\0';
      mm[0]=timestr[4];mm[1]=timestr[5];mm[2]='\0';
      dd[0]=timestr[6];dd[1]=timestr[7];dd[2]='\0';
      ho[0]=timestr[8];ho[1]=timestr[9];ho[2]='\0';
      mi[0]=timestr[10];mi[1]=timestr[11];mi[2]='\0';
      se[0]=timestr[12];se[1]=timestr[13];se[2]='\0';

      printf("\ntimestr[0]---- %c ----\n",timestr[0]);
      printf("\n---- %s ----\n",yy);
      printf("\n---- %s ----\n",mm);
      printf("\n---- %s ----\n",dd);
      printf("\n---- %s ----\n",ho);
      printf("\n---- %s ----\n",mi);
      printf("\n---- %s ----\n",se);

      SYSTEMTIME       sysTime;
      sysTime.wYear       =atoi(yy);
      sysTime.wMonth       =atoi(mm);
      sysTime.wDay       =atoi(dd);
      sysTime.wHour       =atoi(ho);
      sysTime.wMinute       =atoi(mi);
      sysTime.wSecond       =atoi(se);

      SystemTimeToFileTime(&sysTime, &ftime);
}

int main(int argc, char* argv[])
{
      HANDLE hFileNew1 , hFileNew;
      FILETIME OCreateTime, OLastWriteTime, OLastAccessTime;
      const FILETIME *pCreationTime, *pLastWriteTime, *pLastAccessTime;

      if (argc!=5)
            usage();
      else{

            hFileNew1 = CreateFile(argv[1], GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
            if (hFileNew1 == INVALID_HANDLE_VALUE)
            {
                     printf("Cannot open %s. Error:%x\n", argv[1], GetLastError());
                     exit(2);
            }

            GetFileTime(hFileNew1 , &OCreateTime, &OLastAccessTime, &OLastWriteTime);
            CloseHandle(hFileNew1);

            hFileNew = CreateFile(argv[1], GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
            if (hFileNew == INVALID_HANDLE_VALUE)
            {
                     printf("Cannot open %s. Error:%x\n", argv[1], GetLastError());
                     exit(2);
            }

            atotime(argv[2],OCreateTime);
            pCreationTime = &OCreateTime;
            atotime(argv[3],OLastWriteTime);
            pLastWriteTime = &OLastWriteTime;
            atotime(argv[4],OLastAccessTime);
            pLastAccessTime = &OLastAccessTime;

            if(!SetFileTime(hFileNew, pCreationTime,pLastAccessTime,pLastWriteTime))
            {
                     printf("Error SetFileTime\n");
                     exit(3);
            }

            CloseHandle(hFileNew);
            printf("All is done! Enjoy yourself\n");
      }
      return 0;
}