linux编程socket程序的编译语句
Linux\u4e0bC\u8bed\u8a00socket\u7f16\u7a0bsocket\u7f16\u7a0b\u4e00\u822c\u662f\u57fa\u4e8etcp\u6216\u8005udp\u534f\u8bae\u6765\u5199\u7684\uff0c\u4f60\u7684\u95ee\u9898\u5f88\u62bd\u8c61\uff0c\u6211\u4e0d\u77e5\u9053\u4f60\u8981\u7684\u662f\u57fa\u4e8etcp\u8fd8\u662fudp\u7684socket\u7f16\u8bd1\u3002\u6211\u628a\u76f8\u5bf9\u96be\u7684\u57fa\u4e8etcp\u534f\u8bae\u7684socket\u7f16\u8bd1\u7ed9\u4f60\u5427\u3002\u4f60\u60f3\u770b\u61c2\u6211\u7684\u4ee3\u7801\u9700\u8981\u77e5\u9053tcp\u7684\u4e09\u6b21\u63e1\u624b\u673a\u5236\u3002\u5426\u5219\u6211\u5199\u4e86\u6ce8\u91ca\uff0c\u4f60\u770b\u4ee3\u7801\u4e5f\u6709\u70b9\u56f0\u96be\u3002 ////\u670d\u52a1\u7aef\u7684\u4ee3\u7801
1 #include
2 #include
3 #include
4 #include
5 #include
6 #include
7 #include
8 #include
9
10 #define LOCAL_PORT 1234
11 #define MAX_LEN 512
12 #define MAX_NUM 5
13
14 int main(int argc, char *argv[])
15 {
16 int sock_fd, sock_data;
17 int ret, len_addr;
18 char buf[MAX_LEN];
19 ssize_t len;
20 struct sockaddr_in local_addr, remote_addr;
21
22 sock_fd = socket(AF_INET, SOCK_STREAM, 0); //\u521b\u5efa\u5957\u63a5\u5b57\uff0csock_fd\u662f\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\uff0c\u7c7b\u4f3c\u6211\u4eec\u7684\u8eab\u4efd\u8bc1\u53f7\u7801
23 if (sock_fd < 0)
24 {
25 perror("socket()");
26 return sock_fd;
27 }
28
29 local_addr.sin_family = AF_INET;// \u534f\u8bae\u65cf\uff0cipv4
30 local_addr.sin_port = htons(LOCAL_PORT);// \u628a\u670d\u52a1\u5668\u7aef\u53e3\u8f6c\u6362\u6210\u7f51\u7edc\u5b57\u8282\u5e8f
31 local_addr.sin_addr.s_addr = inet_addr("127.0.0.1");//\u628a\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684ip\u8f6c\u6362\u6210\u7f51\u7edc\u5b57\u8282\u5e8f
32
33 ret = bind(sock_fd, (struct sockaddr *)&local_addr, (size_t)sizeof(local_addr));// \u628asock_fd\u548c\u672c\u673aip\uff0c\u7aef\u53e3\u90a6\u5b9a
34 if (ret < 0)
35 {
36 perror("bind()");
37 close(sock_fd);
38 return ret;
39 }
40
41 ret = listen(sock_fd, MAX_NUM);//\u76d1\u542csocket
42 if (ret)
43 {
44 perror("listen()");
45 close(sock_fd);
46 return ret;
47 }
48
49 memset(buf, 0, MAX_LEN);
50
51 len_addr = sizeof(remote_addr);
52
53 sock_data = accept(sock_fd, (struct sockaddr *)&remote_addr, (socklen_t *)&len_addr);//\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u8fde\u63a5
54 if (ret < 0)
55 {
56 perror("accept()");
57 close(sock_fd);
58 return ret;
59 }
60
61 while (1)
62 {
63 int slen;
64 len = recv(sock_data, buf, MAX_LEN, 0);//\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u6570\u636e
65 if (len < 0)
66 {
67 perror("recv()");
68 close(sock_data);
69 close(sock_fd);
70 return len;
71 }
72 printf("%s\n", buf);
73
74 slen = send(sock_data, "congratulation!", 15, 0);//\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e
75 if (slen <= 0)
76 {
77 printf("slen = %d\n", slen);
78 perror("send()");
79 close(sock_data);
80 close(sock_fd);
81 return slen;
82 }
83 sleep(1);
84 }
85
86 close(sock_data);
87 close(sock_fd);
88
89 return 0;
90 }
////////////\u5ba2\u6237\u7aef\u7684\u4ee3\u7801 1 #include
2 #include
3 #include
4 #include
5 #include
6 #include
7 #include
8 #include
9
10 #define REMOTE_PORT 1234
11 #define MAX_LEN 512
12
13 int main(int argc, char *argv[])
14 {
15 int sock_fd, ret;
16 int len;
17 char buf[MAX_LEN];
18 struct sockaddr_in local_addr, remote_addr;
19
20 sock_fd = socket(AF_INET, SOCK_STREAM, 0);
21 if (sock_fd < 0)
22 {
23 perror("socket()");
24 return sock_fd;
25 }
26
28 local_addr.sin_family = AF_INET;
29 local_addr.sin_addr.s_addr = htonl(INADDR_ANY); //\u81ea\u52a8\u83b7\u53d6\u672c\u673a\u7684ip\u5730\u5740
30 local_addr.sin_port = htons(0); //\u968f\u673a\u9009\u53d6\u53ef\u7528\u7684\u7aef\u53e3\uff0c\u5e76\u4e0d\u662f\u6307\u5b9a\u7aef\u53e3\u4e3a0
31
33 remote_addr.sin_family= AF_INET;
34 remote_addr.sin_port = htons(REMOTE_PORT);
35 ret = inet_aton("127.0.0.1", &remote_addr.sin_addr);
36
38 ret = bind(sock_fd, (struct sockaddr *)&local_addr, sizeof(local_addr)); //\u628a\u672c\u673a\u7684ip,port\u548csocket\u7ed1\u5b9a
39 if (ret < 0)
40 {
41 perror("bind() !");
42 close(sock_fd);
43 return ret;
44 }
45
47 ret = connect(sock_fd, (struct sockaddr *)&remote_addr, (socklen_t)sizeof(remote_addr)); //\u628a\u672c\u673a\u7684socket\u548c\u5bf9\u65b9\u7684port\uff0cip\u5efa\u7acb\u8fde\u63a5
48 if (ret < 0)
49 {
50 perror("connect()");
51 close(sock_fd);
52 return ret;
53 }
54
55 memset(buf, 0, MAX_LEN);
56
57 while (1)
58 {
59 int i;
60 // len = send(sock_fd, buf, (size_t)MAX_LEN, 0);
61 len = send(sock_fd, "hello", 6, 0);
62 if (len <= 0)
63 {
64 perror("send()");
65 close(sock_fd);
66 return ret;
67 }
68
69 // printf("%d-->bytes send!\n", len);
70 sleep(1);
71
72 len = recv(sock_fd, buf, MAX_LEN, 0);
73 if (len <= 0)
74 {
75 perror("recv()");
76 close(sock_fd);
77 return ret;
78 }
79
80 for (i = 0; i < len; i++)
81 {
82 printf("%c", buf[i]);
83 }
84 printf("\n");
85 }
86
87 close(sock_fd);
88
89 return 0;
90 }
\u4f60\u628a\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u8fd9\u4e24\u4e2a\u7a0b\u5e8f\u5206\u522b\u4fdd\u5b58\u4e3aserver.c\u548cclient.c\u3002\u7136\u540e\u7f16\u8bd1gcc server.c -o server\uff0cgcc client .c -o client\u3002\u8fd0\u884c\u65f6\u5148\u8fd0\u884c\u670d\u52a1\u7aef\uff0c\u7528\u547d\u4ee4./server\uff0c\u518d\u8fd0\u884c\u5ba2\u6237\u7aef\uff0c\u7528\u547d\u4ee4./client\u3002 \u6ce8\u610f\u8fd0\u884c\u547d\u4ee4\u662f\u201c\u70b9 \u659c\u6760\u201d\uff0c\u201c\u70b9\u201d\u8868\u793a\u5f53\u524d\u76ee\u5f55\u3002
linux\u4e0b\u6ca1\u5b89\u88c5\u7f16\u8bd1\u73af\u5883\u5417\uff1f\u7528 gcc\u554a
server端：#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include<string.h>
#include <ctype.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#define MAX_LINE 100
int main()
{
struct sockaddr_in server;
struct sockaddr_in client;
int server_fd;
int client_fd;
socklen_t len;
char buf[MAX_LINE]; //用于存储传送内容到缓冲区
char addr_ip[INET_ADDRSTRLEN];//存储客户端地址缓冲区
int port = 8000;//端口号8000
int n; //读写字节数
bzero(&server,sizeof(server));//清空地址结构
server.sin_family = AF_INET;//使用ipv4
server.sin_addr.s_addr = INADDR_ANY;//服务器可以接受任意地址
server.sin_port = htons(port);//把端口号转成网络字节序
server_fd = socket(AF_INET,SOCK_STREAM,0);//创立套接字，使用tcp协议
bind(server_fd,(struct sockaddr *)&server,sizeof(server));//将地址和套接字绑定
listen(server_fd,10);//开始监听
printf("waiting```\n");
while(1)
{
client_fd = accept(server_fd,(struct sockaddr *)&client,&len);
n = read(client_fd,buf,MAX_LINE);//读取客户端来的消息
inet_ntop(AF_INET,&client.sin_addr,addr_ip,sizeof(addr_ip));
printf("client ip is : %s , port is : %d\n",addr_ip,ntohs(client.sin_port));
printf("content is : %s\n",buf);//打印客户端信息
write(client_fd,buf,n);//转发回去给客户端
close(client_fd);
}
if(close(client_fd) == -1)
{
perror("fail to close");
exit(1);
}
return 0;
}
client端：
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#define MAX_LINE 100
int main(int argc,char * argv[])
{
struct sockaddr_in server;//服务器地址
char buf[MAX_LINE];
int server_fd;
int port = 8000;
char *str = "test string";//默认字符串
if(argc > 1)
{
str = argv[1];//从命令参数中取得用户输入的串
}
bzero(&server,sizeof(server));//清空地址结构
server.sin_family = AF_INET;//使用ipv4
inet_pton(AF_INET,"192.168.228.129",&server.sin_addr);
server.sin_port = htons(port);
server_fd = socket(AF_INET,SOCK_STREAM,0);//创建套接字
connect(server_fd,(struct sockaddr *)&server,sizeof(server));
write(server_fd,str,strlen(str) + 1);
//因为是本机测试，所以不用考虑延时
read(server_fd,buf,MAX_LINE);
printf("recieve from server :%s\n",buf);
close(server_fd);
return 0;
}
//源码来自于网络，谁写也都类似，都是基于tcp的三次握手协议来写的
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