尊龙凯时人生就是搏

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Linux×÷ΪһÖÖ¿ªÔ´²Ù×÷ϵͳ£¬¾ßÓÐÇ¿Ê¢¶øÎÞаµÄÍøÂç±à³ÌÄÜÁ¦¡£ÔÚ¾ÙÐÐTCP/IPÍøÂç±à³Ì֮ǰ£¬ÐèÒª¶ÔLinuxϵͳ¾ÙÐÐһЩÉèÖã¬È·±£ÍøÂç±à³ÌÇéÐεÄÕý³£ÔËÐС£±¾ÎĽ«ÒÔ´úÂëʾÀýµÄÐÎʽÏÈÈÝÔõÑùÉèÖÃlinuxϵͳÒÔÖ§³Ötcp/ipÍøÂç±à³Ì¡£

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ÔÚ×îÏÈTCP/IPÍøÂç±à³Ì֮ǰ£¬ÐèҪȷ±£ÏµÍ³ÒÑ×°ÖÃÐëÒªµÄÈí¼þ°ü¡£Í¨³£ÇéÐÎÏ£¬LinuxϵͳÒÑĬÈÏ×°ÖÃÁËÕâЩÈí¼þ°ü£¬µ«ÎªÁË×èÖ¹ÒÅ©£¬¿ÉÒÔʹÓÃÒÔÏÂÏÂÁî¾ÙÐмì²éºÍ×°Öãº

sudo apt-get update
sudo apt-get install build-essential
sudo apt-get install libnetfilter-queue-dev

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ÔÚ¾ÙÐÐTCP/IPÍøÂç±à³Ì֮ǰ£¬»¹ÐèҪȷ±£ÆôÓÃÁËÐëÒªµÄÄÚºËÄ£¿é¡£Í¨¹ýÐÞ¸Ä/etc/modulesÎļþ£¬Ìí¼ÓÒÔÏÂÄ£¿é£º

nfnetlink
nfnetlink_queue
nfnetfilter
ipv6

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sudo update-initramfs -u

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ÔÚ¾ÙÐÐTCP/IPÍøÂç±à³ÌÇ°£¬ÎÒÃÇÐèÒª±àдһЩʾÀý´úÂëÀ´²âÊÔÍøÂçÅþÁ¬¡£ÒÔÏÂÊÇÒ»¸ö¼òÆÓµÄÀý×Ó£¬ÓÃÓÚ½¨ÉèЧÀÍÆ÷ºÍ¿Í»§¶ËÖ®¼äµÄTCPÅþÁ¬£º

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>

#define BUFFER_SIZE 1024
#define PORT 8888

int main() {
    int server_socket, client_socket;
    struct sockaddr_in server_addr, client_addr;
    char buffer[BUFFER_SIZE];

    // ½¨ÉèЧÀÍÆ÷Ì×½Ó×Ö
    if ((server_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(1);
    }

    // ÉèÖÃЧÀÍÆ÷µØµã
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    server_addr.sin_port = htons(PORT);

    // ½«Ð§ÀÍÆ÷°ó¶¨µ½Ö¸¶¨µØµãºÍ¶Ë¿Ú
    if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
        perror("bind");
        exit(1);
    }

    // ¼àÌýÅþÁ¬ÇëÇó
    if (listen(server_socket, 5) == -1) {
        perror("listen");
        exit(1);
    }

    // ½ÓÊÜÅþÁ¬ÇëÇó
    socklen_t client_len = sizeof(client_addr);
    if ((client_socket = accept(server_socket, (struct sockaddr*)&client_addr, &client_len)) == -1) {
        perror("accept");
        exit(1);
    }

    // ¶ÁÈ¡¿Í»§¶Ë·¢Ë͵ÄÊý¾Ý
    if (read(client_socket, buffer, BUFFER_SIZE) == -1) {
        perror("read");
        exit(1);
    }

    printf("Received message: %s
", buffer);

    // ¹Ø±ÕÌ×½Ó×Ö
    close(client_socket);
    close(server_socket);

    return 0;
}

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¿Í»§¶Ë´úÂ룺

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>

#define BUFFER_SIZE 1024
#define PORT 8888
#define SERVER_IP "127.0.0.1"

int main() {
    int client_socket;
    struct sockaddr_in server_addr;
    char buffer[BUFFER_SIZE];

    // ½¨Éè¿Í»§¶ËÌ×½Ó×Ö
    if ((client_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(1);
    }

    // ÉèÖÃЧÀÍÆ÷µØµã
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = inet_addr(SERVER_IP);
    server_addr.sin_port = htons(PORT);

    // ÌᳫÅþÁ¬ÇëÇó
    if (connect(client_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
        perror("connect");
        exit(1);
    }

    // ·¢ËÍÊý¾ÝÖÁЧÀÍÆ÷
    strncpy(buffer, "Hello, Server!", BUFFER_SIZE);
    if (write(client_socket, buffer, BUFFER_SIZE) == -1) {
        perror("write");
        exit(1);
    }

    // ¹Ø±ÕÌ×½Ó×Ö
    close(client_socket);

    return 0;
}

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ЧÀÍÆ÷¶Ë±àÒëºÍÔËÐУº

gcc server.c -o server
./server

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gcc client.c -o client
./client

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