file offset

The first is commonly used by several functions open, Read,write,lseek, closeOpen function function prototype int open (char * path,int oflag,...) The return value is a file descriptor. Path is the name of the filename oflage file is open by the

This article link: http://blog.csdn.net/u012763794/article/details/514694771. IntroductionWhat is a PE file?The PE file is the executable file format used under the Windows operating system. 32 bit is directly called PE or pe32,64 bit of pe+ or pe32+

First, IntroductionMost files in UNIX systems require only 5 functions for I/O: Open/read/write/lseek and Close, which are non-buffered I/O (unbuffered I/O). As long as the sharing of resources between multiple processes is involved, the concept of

?12 binary io (binary io)In the previous article we learned about read-only and line-by-read functions.If we are reading and writing binary files, and want to read and write the entire file content, these two functions can be implemented, but it is

Some friends who have used plug-ins should know that when playing games, we have many auxiliary functions for you, such as taking medicine and using items, at this time, we use the injection code technology. Simply put, we let another process

Reprint: http://blog.csdn.net/a_ran/article/details/43562429int truncate (const char *path, off_t length);int ftruncate (int fd, off_t length);Change the file size to the size specified by the parameter length, if the original file size is larger

1. OverviewIn the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, directory files, linked files and device files. File descriptor is the index created by the kernel in order to efficiently

Linux file system is a generalized file system, can be considered that the Linux system for any device and object operation is equivalent to the operation of the file.The Linux system abstracts all operational objects in a highly abstracted way,

Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/389652391. Overviewin the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, directory files, linked files and device

-------------------system built-in function-------------------1. StringStr= ' This is a string data test data ' correspondingStr[0]: Gets the character labeled 0 in the STR string.STR[3]: Gets the character labeled 3 in the STR string.Str[0:3]: Gets

Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/389652391. OverviewIn the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, folder files, linked files and device files.

After reading the "Linux/unix system Programming Manual" and apue the previous chapters found that the lack of appropriate practice, if it is simply to understand the API does not make much sense, so decided to follow the "Unix/linux Programming

Summary of this chapter · PE file Format overview · PE file structure · How to get Oep in a PE file · How to get resources in a PE file · How to modify the PE file to display an instance of the MessageBox 2.1 introduction Typically, EXE files under

This article introduces the file I/0 in linux. for the kernel, all opened files are referenced by file descriptors. Each process has some associated file descriptors. The file descriptor is a non-negative integer. When you open an existing file or

Vulnerability Report AnalysisLearn to crack friends must have heard w32dasm this reverse analysis tool. It is a static disassembly tool that, before Ida Pro is popular, is one of the tools that the cracking community must learn to use, and it is

Metaserver metadata management of the KFS file system uses the B + tree method. The following uses the source code to analyze the organization and implementation details of metadata in KFS metaserver. 1. Related source code files KFS metaserver

Deep Dive into the PE file format-create your own pe showAuthor: winroot//////////////////////////////////////// ////////////////////////////// Start ////////////////////////////////////////// ///////////////////////////Hello everyone! I have been

Interpreting elf files with instances-Reading Notes (1)Bkbll (bkbll@cnhonker.net, bkbll@tom.com)2003/09/09I. PrerequisitesThere are many articles on the Internet that describe the formats and loading processes of ELF files. I think these articles

"Unix environment advanced programming" chapter 3rd-file I/O, unix environment Advanced Programming1. Introduction For most Unix files, I/O only requires five functions: open, read, write, lseek, and close. The functions described in this chapter

/*The following code can be run in either Linux or windows.Why is this Code retained?1. including the analysis of the PE file format in the recent period;In the future, if you need to use the PE format, you just need to look at this code and it is