I was experimenting some security stuff and especially trying to understand a ret2ret exploit. The code I was experimentating on : void foo(char * val){ char buffer[64]; int i; for (i=0; val[i]!=0; i++) buffer[i]=val[i]; return; } int main(int argc, char ** argv) { foo(argv[1]); return 0; } ASLR, N^X and stack canaries were off during my test.
我正在尝试一些安全性的东西,特别是试图理解一个ret2ret的漏洞。 我正在试验的代码是: void foo(char * val){ char buffer[64]; int i; for (i=0; val[i]!=0; i++) buffer[i]=val[i]; return; } int main(int argc, char ** argv) { foo(argv[1]); return 0; } ASLR,N ^ X和堆叠金丝雀在我的测试期间关闭。 我用gcc将它编译成32位。 我不知道为什么,但我无法得到通
My app is a WPF application and it already has code for the older type of System DPI awareness that works well in every version of windows except 8.1. It turns out that Microsoft added a number of functions to Windows 8.1 as part of their implementation of per-monitor DPI awareness. I need to implement code in my program to support this type of DPI awareness. I have documentation that lists t
我的应用程序是一个WPF应用程序,它已经具有旧版本的System DPI感知的代码,在8.1以外的每个Windows版本中都可以正常运行。 事实证明,微软在Windows 8.1中增加了许多功能,作为实现每台显示器DPI认知的一部分。 我需要在我的程序中实现代码来支持这种类型的DPI认识。 我有文档列出了每台显示器的DPI认知功能以及它们的参数。 我需要将它们导入到C#中,并从我的窗口类中调用它们。 但我不知道哪些DLL包含这些函数! 例如
We are developing a C# application for a web-service client. This will run on Windows XP PC's. One of the fields returned by the web service is a DateTime field. The server returns a field in GMT format ie with a "Z" at the end. However, we found that .NET seems to do some kind of implicit conversion and the time was always 12 hours out. The following code sample resolves th
我们正在为Web服务客户端开发C#应用程序。 这将在Windows XP PC上运行。 Web服务返回的其中一个字段是DateTime字段。 服务器以GMT格式返回一个字段,即在最后以“Z”结尾。 但是,我们发现.NET似乎做了某种隐式转换,时间总是12小时。 下面的代码示例在一定程度上解决了这个问题,12小时的差异已经消失了,但是它不允许NZ夏令时。 CultureInfo ci = new CultureInfo("en-NZ"); string date = "Web service date".ToString
I query to Database to get data. It might has more than 1 row. I save them into IEnumerable. Why dynamic? because I might add new column in the table and I dont want to change my code to adapt it again. Then, I convert the IEnumerable to datatable. I have a problem to get the properties inside the dynamic object. Anyone can help me? Here is my code: DataTable dt; string query = "SELEC
我查询数据库以获取数据。 它可能有多于一行。 我将它们保存到IEnumerable中。 为什么动态? 因为我可能会在表中添加新列,我不想更改我的代码以适应它。 然后,我将IEnumerable转换为数据表。 我有一个问题来获取动态对象内的属性。 任何人都可以帮助我? 这是我的代码: DataTable dt; string query = "SELECT * FROM WORKSHOP WHERE WORKSHOPID = 1"; // Execute Query var result = Execute(query); // Convert
I got fairly simple exercise to do on first look but it ended up being quite hard instead. I need to take a date as an input and also add days to the it which are also taken from the user input. I already did some functions and some simple calculations and now i have all the days taken from the date (01,01,0001 is zero) for example : first January second year (01.01.0002) + 0 days is equal to
第一次看起来我做了相当简单的练习,但最后却变得相当困难。 我需要将日期作为输入,并将日期添加到它也从用户输入中获取。 我已经做了一些功能和一些简单的计算,现在我已经从日期(01,01,0001为零)中获得了所有的日子,例如: 第一个1月第二年(01.01.0002)+ 0天等于365天,它也可以正确计算,如果我添加一些日子:01.01.0002 + 12天= 387 ..它也计算闰年。 现在我有totalDays我只需要将其转换为正常的日/月/年格式..
I have 2 dates, a start (1/1/15) an end (31/12/16) I need to calculate an amount per day from a total amount (20,000) and a annual amount based on 365 days, I'm using Timespan to get the days between start and end dates, but in this case it returns 731 (365 + 366) as 2006 is a leap year, but what I need is to get 730 without the leap day, is there any way of doing this Thanks Aj Per
我有两个日期,一个开始(1/1/15)结束(31/12/16) 我需要从总金额(20,000)和每年365天的金额计算每日金额, 我使用Timespan获取开始日期和结束日期之间的天数,但在这种情况下,由于2006年是闰年,所以返回731(365 + 366) 但我需要的是在没有闰日的情况下获得730,有没有这样做的方法 谢谢Aj 也许有一种更高效的方法,但是这种方式按预期工作: public static int DaysDiffMinusLeapYears(DateTime dt1, DateTim
In my embedded Linux application I have a "tick count" counter that increases 1 each 10 nanoseconds counting from 1st January 00:00:00 of 2014. I want to be able to, picking the current value of the "tick count" counter, print it as the current date-time (year, month, day, hour, minute, second and millisecond) of my system already considering things such as leap year, Februa
在我的嵌入式Linux应用程序中,我有一个“滴答计数”计数器,从2014年1月1日00:00:00开始计数,每增加10纳秒计数1。 我希望能够选择“滴答计数”计数器的当前值,将其作为当前日期 - 时间(年,月,日,小时,分钟,秒和毫秒)打印出来,已经考虑了诸如闰年,二月有28/29天等,这个使用纯C方法(从time.h等)。 但是我不知道该怎么做......现在我已经在几秒钟内获得了相同的值,所以我知道自开始日期时间过去了多少秒,但不知道
I've got 2 days worth of time that I can't account for :-). I've got integral values stored in a database that comes from DateTime.UtcNow.Ticks in C# code. I'm trying to write some simple DB queries to convert these back to human-readable times and I can't get the math just right. According to this documentation: http://msdn.microsoft.com/en-us/library/system.datetime.tic
我有2天的时间,我无法解释:-)。 我在C#代码中存储了来自DateTime.UtcNow.Ticks的数据库中的整数值。 我正在尝试写一些简单的数据库查询来将这些查询转换回人类可读的时间,并且我无法正确地计算数学。 根据此文档:http://msdn.microsoft.com/en-us/library/system.datetime.ticks(v=vs.110).aspx “单个刻度代表一百纳秒或百万分之一秒,一毫秒内有一万个刻度,这个属性的值表示从一月中午12:00点开始经过的100纳秒间隔
I've been searching a lot but couldn't find a solution. How do you deal with a DateTime that should be able to contain an uninitialized value (equivalent to null)? I have a class which might have a DateTime property value set or not. I was thinking of initializing the property holder to DateTime.MinValue, which then could easily be checked. I guess this is a quite common question, how
我一直在寻找很多,但找不到解决方案。 你如何处理应该能够包含未初始化值的DateTime(等于null)? 我有一个可能有DateTime属性值的类。 我正在考虑将财产持有人初始化为DateTime.MinValue,然后可以轻松进行检查。 我想这是一个很常见的问题,你怎么做? 对于正常的DateTime,如果你根本不初始化它们,那么它们将匹配DateTime.MinValue ,因为它是一个值类型而不是引用类型。 您也可以使用可空的DateTime,如下所示:
Typing in the title to this question brought me to this question. I'm looking for the same thing, but something perhaps less statically formatted if you get what I mean? I'm writing a quick program that will be taking a TimeSpan duration of two DateTime objects and outputting them for printing to paper. The format that would be preferred is: XX days, YY hours, ZZ minutes (seconds are
在这个问题的标题中键入让我想到了这个问题。 我正在寻找相同的东西,但是如果你明白我的意思,那么可能不是静态格式化的东西? 我正在编写一个快速程序,它将持续两个DateTime对象的TimeSpan持续时间,并将它们输出用于打印到纸张。 优先考虑的格式是: XX days, YY hours, ZZ minutes (秒无关紧要;因为我不希望时间跨度超过几个小时)。 说下面的代码(作为例子): DateTime start = DateTime.Now; DateTime end = Da