/* 硬盘分区表的保存及恢复 */
# include<stdio.h>
# include<bios.h>
# include<fcntl.h>
# include<sys\types.h>
# include<sys\stat.h>
void helpmsg(void);
int main(int argc,char *argv[])
{
int result;
char buffer[512];
FILE *fp;
if(argc==1)
helpmsg();
if(*argv[1]=='a'||*argv[1]=='A')
{
result=biosdisk(2,0x80,0,0,1,1,buffer);
if(!result)
{
printf("读硬盘分区表成功\n");
if((fp=fopen("a:part.doc","wb+"))==NULL)
{
fprintf(stderr,"不能创建文件:a:\part.doc\n");
exit(1);
}
fwrite(buffer,1,512,fp);
fclose(fp);
printf("硬盘分区表保存成功\n");
return 0;
}
else
{
fprintf(stderr,"读硬盘分区表失败");
exit(1);
}
}
if(*argv[1]=='c'||*argv[1]=='C')
{
if((fp=fopen("a:part.doc","rb+"))==NULL)
{
fprintf(stderr,"文件打开失败");
exit(1);
}
fread(buffer,1,512,fp);
result=biosdisk(3,0x80,0,0,1,1,buffer);
if(!result)
{
printf("硬盘分区表恢复成功");
fclose(fp);
return 0;
}
else
{
fprintf(stderr,"硬盘分区表恢复失败");
fclose(fp);
exit(1);
}
}
return 0;
}
void helpmsg(void)
{
puts("程序使用的正确格式为:Boot[A]或Boot[C]");
puts("其中参数:B---保存硬盘分区表到B盘");
puts("其中参数:C---从B盘恢复硬盘分区表");
exit(0);
}
