Linux下套接字编程技术指南-linux套接口 (linux小红帽系统)

教程大全 2025-07-16 00:47:00 浏览

Linux Socket Programming Technology Guide

Linux is an open-source operating system that runs on a variety of hardware and supports a wide range of programming languages. It has become a popular choice for applications ranging from web servers and cloud computing to embedded and mobile platforms. One of the primary technologies used to develop applications on Linux is socket programming. This is the process of using network sockets to build network applications, such as web servers and chat clients.

Socket programming requires a detailed understanding of the Linux kernel and network protocols. It is not uncommon for developers to spend hours learning and writing code to accomplish specific tasks. However, with the right knowledge and tools, socket programming can be an efficient and effective way to create powerful and useful applications.

linux小红帽系统

Socket programming begins with the creation of a socket. This is done by calling the socket() function, which is provided by the C library. The socket is then bound to an address, stored in a sockaddr structure. The address contains information about the IP and port where the connection will be established. The bind() function is then used to bind the socket to the address.

Once the socket has been created and bound to an address, the listen() method can be used to accept incoming connections. The accept() function is then used to accept a connection and creates a new socket object to handle communication with the connected client. The read() and write() methods are then used to send and receive>香港服务器首选树叶云,2H2G首月10元开通。树叶云(shuyeidc.com)提供简单好用,价格厚道的香港/美国云 服务器 和独立服务器。IDC+ISP+ICP资质。ARIN和APNIC会员。成熟技术团队15年行业经验。


linux下socket编程中CLOSE()函数??

只要不用close或fclose,不管把这个socket_fd值存到哪里,都可以使用。比如:int socket_fd = socket(...);int socket_x = socket_fd;那么send(socket_x)和send(socket_fd)结果完全一致

在Linux系统中,gcc的命令怎么用?

Gcc最基本的用法是∶gcc [options] [filenames] 其中options就是编译器所需要的参数,filenames给出相关的文件名称。 -c,只编译,不连接成为可执行文件,编译器只是由输入的.c等源代码文件生成.o为后缀的目标文件,通常用于编译不包含主程序的子程序文件。 -o output_filename,确定输出文件的名称为output_filename,同时这个名称不能和源文件同名。 如果不给出这个选项,gcc就给出预设的可执行文件。 -g,产生符号调试工具(GNU的gdb)所必要的符号资讯,要想对源代码进行调试,我们就必须加入这个选项。 -O,对程序进行优化编译、连接,采用这个选项,整个源代码会在编译、连接过程中进行优化处理,这样产生的可执行文件的执行效率可以提高,但是,编译、连接的速度就相应地要慢一些。 -O2,比-O更好的优化编译、连接,当然整个编译、连接过程会更慢。 -Idirname,将dirname所指出的目录加入到程序头文件目录列表中,是在预编译过程中使用的参数。 找到一个学习linux的好方法,可多看看《linux就该这么学》一书。

Linux下socket编程的sockaddr_in结构体中的__SOCKADDR_COMMON (sin_);是什么意思

其定义如下:typedef unsigned short int sa_family_t;#define __SOCKADDR_COMMON(sa_prefix) \ sa_family_t sa_prefix##family可以看到这就是一个整形变量(2字节),主要的用处是指明地址类型:取值主要是AF_UNIX|AF_INET|AF_INET6|AF_PACKET等等。 由于所有的地址结构体必然有地址类型,因此封装成一个统一的宏。

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