working

mini_serv_ex.c

@@ -1,79 +1,147 @@
-#include <string.h>
 #include <unistd.h>
 #include <stdlib.h>
-#include <stdio.h>
-#include <sys/types.h>
+#include <string.h>
 #include <sys/socket.h>
-#include <arpa/inet.h>
-#include <sys/select.h>
+#include <netinet/in.h>
 
-typedef int bool;
+// write
+// close
+// select
+// socket
+// accept
+// listen
+// send
+// recv
+// bind
+// strstr
+// malloc
+// realloc
+// free
+// calloc
+// bzero
+// atoi
+// sprintf
+// strlen
+// exit
+// strcpy
+// strcat
+// memset
 
-bool	check_arguments(int argc)
-{
-	return (argc > 1);
-}
+#define BUFSIZE 42000
 
-void	putstr_fd(char *str, int fd)
-{
-	write(fd, str, strlen(str));
-}
-
-void	arguments_error(void)
-{
-	putstr_fd("Wrong number of arguments\n", 2);
+void error(char *msg) {
+	write(2, msg, strlen(msg));
 	exit(1);
 }
 
-void	fatal_error(void)
-{
-	putstr_fd("Fatal error\n", 2);
-	exit(1);
-}
+int main(int ac, char **av) {
+	int									server_fd;
+//	int									client_fd;
+	int									client_id;
+	int									port;
+	int									max_fd;
+//	char								buf[BUFSIZE];
+//	char								tmp_buf[BUFSIZE];
+//	int									clients[FD_SETSIZE];
+	struct sockaddr_in	addr; 
+	socklen_t						addr_len;
+	fd_set							fdset;
+	fd_set							rdset;
 
-int get_port(char *arg)
-{
-	int	port = atoi(arg);
-	return (port);
-}
-
-int	main(int argc, char **argv)
-{
-	int						port;
-	int						server_fd;
-	int						client_fd;
-	char					buf[1024];
-	struct sockaddr_in		addr;
-	socklen_t 				addr_len;
-	fd_set					fds;
-
-	server_fd = socket(AF_INET, SOCK_STREAM, 0);
-	addr.sin_family = AF_INET;
-	addr.sin_port = htons(port);
-	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	if (ac != 2)
+		error("Wrong number of arguments\n");
+	port = atoi(av[1]);
 	addr_len = sizeof(addr);
 
-	if (!check_arguments(argc))
-		arguments_error();
-	if ((port = get_port(argv[1])) == -1)
-		fatal_error();
-	printf("port = %d\n", port);
-	if (bind(server_fd, (struct sockaddr *)&addr, addr_len)== -1)
-		fatal_error();
-	if (listen(server_fd, 0) == -1)
-		fatal_error();
-	while (1)
-	{
-		if ((client_fd = accept(server_fd, (struct sockaddr *)&addr, &addr_len)) == -1)
-			fatal_error();
-		FD_ZERO(&fds);
-		FD_SET(client_fd, &fds);
-		select(client_fd + 1, &fds, NULL, NULL, NULL);
-		if (FD_ISSET(client_fd, &fds))
-		{
-			recv(client_fd, buf, 1024, 0);
-			printf("Recv: %s\n", buf);
-		}
+	// socket create and verification 
+	server_fd = socket(AF_INET, SOCK_STREAM, 0); 
+	if (server_fd == -1)
+		error("Fatal error\n");
+	bzero(&addr, addr_len); 
+	// assign IP, PORT 
+	addr.sin_family = AF_INET; 
+	addr.sin_addr.s_addr = htonl(2130706433); //127.0.0.1
+	addr.sin_port = htons(port); 
+	// Binding newly created socket to given IP and verification 
+	if ((bind(server_fd, (const struct sockaddr *)&addr, addr_len)) == -1)
+		error("Fatal error\n");
+	if (listen(server_fd, 10) == -1)
+		error("Fatal error\n");
+
+	FD_ZERO(&fdset);
+	FD_SET(server_fd, &fdset);
+	max_fd = server_fd;
+	client_id = 0;
+
+	while(1) {
+		rdset = fdset;
+
+		select(max_fd + 1, &rdset, NULL, NULL, NULL);
+
+		// new connection
+
+
+		// new messages and close
 	}
+
 	return (0);
+
+//	len = sizeof(cli);
+//	connfd = accept(sockfd, (struct sockaddr *)&cli, &len);
+//	if (connfd < 0) { 
+//		printf("server acccept failed...\n"); 
+//		exit(0);
+//	} 
+//	else
+//		printf("server acccept the client...\n");
 }
+
+
+//int extract_message(char **buf, char **msg)
+//{
+//	char	*newbuf;
+//	int	i;
+//
+//	*msg = 0;
+//	if (*buf == 0)
+//		return (0);
+//	i = 0;
+//	while ((*buf)[i])
+//	{
+//		if ((*buf)[i] == '\n')
+//		{
+//			newbuf = calloc(1, sizeof(*newbuf) * (strlen(*buf + i + 1) + 1));
+//			if (newbuf == 0)
+//				return (-1);
+//			strcpy(newbuf, *buf + i + 1);
+//			*msg = *buf;
+//			(*msg)[i + 1] = 0;
+//			*buf = newbuf;
+//			return (1);
+//		}
+//		i++;
+//	}
+//	return (0);
+//}
+//
+//char *str_join(char *buf, char *add)
+//{
+//	char	*newbuf;
+//	int		len;
+//
+//	if (buf == 0)
+//		len = 0;
+//	else
+//		len = strlen(buf);
+//	newbuf = malloc(sizeof(*newbuf) * (len + strlen(add) + 1));
+//	if (newbuf == 0)
+//		return (0);
+//	newbuf[0] = 0;
+//	if (buf != 0)
+//		strcat(newbuf, buf);
+//	free(buf);
+//	strcat(newbuf, add);
+//	return (newbuf);
+//}
+
+