转自:http://blog.sina.com.cn/s/blog_74e9b07c01019tan.html
下面这段C代码,就是软件实现剩余信息保护的例子。
void IsCorrectUser ()
{
char* pcUserName = NULL;
char* pcPassword = NULL;
pcUserName = (char*) malloc(128 * sizeof(char));
pcPassword = (char*) malloc(128 * sizeof(char));
GetUserNameAndPassword(pcUserName, pcPassword);
CheckUserNameAndPassword(pcUserName, pcPassword);
int i = 0;
for (i = 0; i
{
*( pcUserName + i) = 0;
*( pcPassword + i) = 0;
}
free(pcUserName);
pcUserName = NULL;
free(pcPassword);
pcPassword = NULL;
return;
}
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