User:Apangshusaha/Apangshu's Network Basics

Basic Socket Programming
--                              Client




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int main {	int sockfd; int len; struct sockaddr_un address; int result; char ch = 'A'; sockfd = socket (AF_UNIX,SOCKET_STREAM,0);

address.sun_family = AF_UNIX; strcpy(address.sun_path,"server_socket);	len = sizeof(address);

result = connect(sockfd,(struct sockaddr*)&address,len); if(result == -1) {		perror("oops:client1"); //exit(1); return 1; }

write(sockfd,&ch,1); read(sockfd,&ch,1); printf("char from server = %c\n",ch); close(sockfd); //exit(0); return 1; }

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--                              Server




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int main {	int server_sockfd,client_sockfd; int server_len,client_len; struct sockaddr_un server_address; struct sockaddr_un client_address;

unlink("server_socket"); server_sockfd = socket(AF_UNIX,SOCK_STREAM,0);

server_address.sun_family = AF_UNIX; strcpy(server_address.sun_path,"server_socket"); server_len = sizeof(server_address); bind(server_sockfd,(struct sockaddr*)&server_address,server_len); listen(server_sockfd,5); while(1) {		char ch; printf("server waiting\n");

client_len = sizeof(client_address); client_sockfd = accept(server_sockfd,(struct sockaddr*)&client_address,&client_len); read(client_sockfd,&ch,1); ch++; write(client_sockfd,&ch,1); close(client_sockfd); } }

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