/*
*      Copyright © Redtower
*      e-mail:  redtower4@gmail.com
*/
#include "stdio.h"
#include "stdlib.h"
#include "time.h"   /* for time() */
#include "string.h" /* for strlen() */
#include "Windows.h"struct msg
{unsigned char start;unsigned char len;unsigned char time1;unsigned char time2;unsigned char time3;unsigned char time4;unsigned char tag[7];
};void ReadMsg(struct msg &msg_buf,FILE *fp,FILE *fw)
{unsigned long seek_tag = 0;struct tm * newtime;time_t  msg_time;while (1){fread(&msg_buf,sizeof(struct msg),1,fp);msg_time = (msg_buf.time1<<24)  + (msg_buf.time2<<16) + (msg_buf.time3<<8) + (msg_buf.time4);if (msg_time >= 0x4e7058bd){newtime = localtime(&msg_time);}//读取信息内容并转换为宽字节unsigned char content[200];unsigned short untrs[100];char trus[200];char trus_time[200];int i,j;fread(content,sizeof(unsigned char),msg_buf.len,fp);for ( i=0,j=0; i<msg_buf.len/2; j +=2,i++)untrs[i] = (content[j+1]<<8) + (content[j]);//添加字符串终止 unicode为两个字节的0x00untrs[msg_buf.len/2]= 0x00;  //字符集转换// 缓冲区数量加1以添加字符串终止标记WideCharToMultiByte(CP_ACP,0,untrs,-1,trus,msg_buf.len+1,NULL,NULL);sprintf(trus_time,"%s",asctime(newtime));fwrite(trus_time,strlen(trus_time),1,fw);sprintf(trus,"%s\n",trus);fwrite(trus,strlen(trus),1,fw);//数据流重定位if (!feof(fp)){fseek(fp,seek_tag + sizeof(struct msg) + msg_buf.len + 2,SEEK_SET);seek_tag = seek_tag + sizeof(struct msg) + msg_buf.len + 2;}else{break;}}fclose(fp);fclose(fw);
}void main()
{FILE * fp;FILE * fw;fp = fopen("d:\\msg.info","rb");fw = fopen("d:\\msg.txt","wt");if (fp)printf("msg.info打开成功\n");if (fw)printf("msg.out打开成功\n");struct msg msg_buf;ReadMsg(msg_buf,fp,fw);}