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#include <stdio.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <stdlib.h>#include <string.h>#include <errno.h>#define SERV_TCP_PORT 6555#define SERV_HOST_ADDR "127.0.0.1"main(){int sockfd, newsockfd, clilen, childpid, msglen;char *str = ("Hello!");struct sockaddr_in cli_addr, serv_addr;        if (sockfd = socket(AF_INET, SOCK_STREAM, 0) == -1)                printf("Socket error: %s", strerror(errno));        bzero((char *) &serv_addr, sizeof(serv_addr));        serv_addr.sin_family = AF_INET;        serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);        serv_addr.sin_port = htons(SERV_TCP_PORT);        //this boyo here keeps failing, giving me back a "Socket operation on non-socket" error.        if (bind(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) == -1)                printf("Bind Error: %s\n", strerror( errno ));        listen (sockfd, 5);        //i know all this accept stuff should be in a loop, but i'm not worried about that right now        newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);        if (newsockfd == -1)                printf("Accept error: %s\n", strerror( errno));msglen = strlen(str);send(newsockfd, str, msglen, 0);close(newsockfd);close(sockfd);}