file offset

This article mainly analyzes the implementation principles of memory and I/O-related system calls and library functions, and provides the problems that need to be paid attention to during use and the focus of optimization, system calls involved in

S_isreg () regular fileS_isdir () directory fileS_ischr () character Device FileS_blk () block Device FileS_fifo famous Pipeline FileS_islnk symbolic link fileS_sock socket File # Include # Include Int open (const char * pathname, int Oflag,.../*

What is DLL: DLL is just a group Source code Module, each module contains some available Program Or other DLL-called functions. When an application calls a function in a DLL, the operating system maps the DLL file image to the address space of

Currently, this technology actually hides many xuanjicang, including many technologies. Without special study, it cannot reach the realm of "Ox. Now I have written this article Article The introduction is quite practical and can reduce your detours

[Java]Package Thread;Import java.net. URL;Import java.net. HttpURLConnection;Import java. io .*;Public class DownloadManager {Static final long unitSize = 100*1024; // number of bytes allocated to each download thread/*** @ Param args* 2012-10-8*

FFmpeg user manual-common ffprobe commandsIn the FFMpeg suite, there are ffmpeg and ffprobe, which are mainly used to view the information of multimedia files. The following describes common basic commands in ffprobe.5.1 ffprobe common

A linux/unix process is created in a UNIX system. The only way to create a new process is to call the fork system. The name of the process that calls fork.It is the parent process, and the newly created process is called a child process. Syntax

Common nsfilehandle operations + (Nsfilehandle *) filehandleforreadingatpath: path // open a file for the read operation + (nsfilehandle *) filehandleforwritingatpath: path // open a file for the write operation + (nsfilehandle *)

SD card driver recently writtenProgram. After reading datasheet, sort it as follows: The first thing you need to know is:SD card ProtocolAndHarddisk (File System)Block and sectorIt does not mean anything. For sdks, see "Maid

  In Unix systems, the only way to create a new process is to call the fork system. The process called fork is called the parent process, and the newly created process is called the child process. Syntax format of system call: PID = fork (); When

      (Note: The leftmost part is the offset of the file header .) Image_dos_header struct {+ 0hworde_magic // magic dos signature MZ (4dh 5ah) DOS Executable File tag + 2 H word e_cblp // bytes on last page of file + 4 hword e_cp // pages in file

I/O designed in this blog does not belong to the file I/O of ANSI C, and every function involved is a system call. It mainly involves the basic part of posix.1 I/O operations without caching.1. In the Linux kernel, only one identifier is required

Add or delete a section in PEDuring the past two days, I wrote a program to add and delete sections. I found that there are many skills and a lot of things to be aware of. Now I want to write my experiences, hope to make it easy for friends who are

Detailed description of PE File Format (Part 1) Summary Windows NT 3.1 introduces a new executable file format named PE file format. The PE file format specification is included in the msdn Cd (specs and strategy, specifications, Windows NT file

Crazy brother said that the scientific attitude will always be rigorous and tireless. I think this is just a fart when you are hysterical. However, the facts are facts and cannot be fabricated.I recently studied some problems in Hibernate and found

1. open the file # Include Define the int open (const char * pathname, int flags) function );Int open (const char * pathname, int flags, mode_t mode );Function Description: The pathname parameter points to the file path string to be opened. The

No work today, in the dark room to read a 100-page book "Metasploit Novice Guide", here to share notes to everyone. You are welcome to criticize and learn to make progress together. Metasploit Beginner's Guide笔记kali 0x01The Metapoit basic file

Basic concepts of file operations See blog: How to talk about Linux: underlying file I/O operations 1. Function description open () function: is used to open or create a file, you can specify various parameters such as the properties of the

I first wrote a little program Test.exe ( Note: Because I use the console program does not import user32.dll so I use the direct add Shellcode is not, either in Shellcode import user32.dll or load in the program, if not the following test is

PE format eighth, TLS table (thread-local storage)IbinarySource: http://www.cnblogs.com/iBinary/All rights reserved, welcome to keep the original link to reprint:)I. Review thread-related knowledgeThe first time to explain the TLS, you need to