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56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
//Source: https://www.geeksforgeeks.org/udp-server-client-implementation-c/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#define PORT 30000
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#define MAXLINE 1024
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// Driver code
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int main() {
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int sockfd;
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char buffer[MAXLINE];
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char *hello = "Hello from server";
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struct sockaddr_in servaddr, cliaddr;
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// Creating socket file descriptor
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if ( (sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0 ) {
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perror("socket creation failed");
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exit(EXIT_FAILURE);
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}
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memset(&servaddr, 0, sizeof(servaddr));
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memset(&cliaddr, 0, sizeof(cliaddr));
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// Filling server information
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servaddr.sin_family = AF_INET; // IPv4
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servaddr.sin_addr.s_addr = inet_addr("192.168.1.7");
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servaddr.sin_port = htons(PORT);
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// Bind the socket with the server address
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if ( bind(sockfd, (const struct sockaddr *)&servaddr,
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sizeof(servaddr)) < 0 )
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{
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perror("bind failed");
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exit(EXIT_FAILURE);
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}
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for(;;)
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{
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int len = 0;
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int n = 0;
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n = recvfrom(sockfd, (char *)buffer, MAXLINE,
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MSG_WAITALL, ( struct sockaddr *) &cliaddr,
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&len);
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buffer[n] = '\0';
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printf("Client : %s\n", buffer);
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}
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close(sockfd);
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return 0;
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}
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