Please explan ths code steps and what the commands mean

int main() { int sockfd; char buffer[MAXLINE]; char* message = "Hello Server"; struct sockaddr_in servaddr; int n, len; if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) { printf("socket creation failed"); exit(0); } memset(&servaddr, 0, sizeof(servaddr)); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(PORT); servaddr.sin_addr.s_addr = inet_addr("127.0.0.1"); if (connect(sockfd, (struct sockaddr*)&servaddr,sizeof(servaddr)) < 0) { printf(" Error : Connect Failed "); } memset(buffer, 0, sizeof(buffer)); strcpy(buffer, "Hello Server"); write(sockfd, buffer, sizeof(buffer)); printf("Message from server: "); read(sockfd, buffer, sizeof(buffer)); puts(buffer); close(sockfd); }