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minimal socket example
author Dennis <dennisconcepcionmartin@gmail.com>
date Mon, 17 Jul 2023 18:05:20 +0100
parents 5d2832cac043
children 052cf5cf100a
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <sys/types.h>
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5 #include <sys/socket.h>
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6 #include <netinet/in.h>
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7 #include <arpa/inet.h>
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8
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10 int main() {
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11 int socketfd = socket(AF_INET, SOCK_STREAM, 0);
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12
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13 if (socketfd == -1) {
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14 printf("Socket creation failed\n");
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15 exit(1);
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16 }
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17
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18 struct sockaddr_in sin;
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19 memset(&sin, 0, sizeof(sin));
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20 sin.sin_family = AF_INET;
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21 sin.sin_addr.s_addr = inet_addr("127.0.0.1");
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22 sin.sin_port = htons(5050);
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23
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24 if (bind(socketfd, (struct sockaddr*)&sin, sizeof(sin)) == -1) {
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25 printf("Socket binding failed\n");
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26 }
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27
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28 //if (connect(socketfd, (struct sockaddr*)&sin, sizeof(sin) == -1)) {
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29 //printf("Socket connection failed\n");
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30 //}
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31
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32 if (listen(socketfd, 10) == -1) {
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33 printf("Listen failed\n");
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34 }
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35
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36 char sendBuff[50] = "Hello world\n";
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37
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38 while (1) {
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39 int connfd = accept(socketfd, (struct sockaddr*)NULL, NULL);
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40 send(connfd, sendBuff, sizeof(sendBuff), 0);
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41 shutdown(connfd, 2);
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42 }
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43
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44
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45 return 0;
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46 }