「🏗️」 wip: aaaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh why ???

3

@@ -1,22 +0,0 @@
-#include <sys/select.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-char recv_buf[3000];
-char send_buf[3000];
-
-int maxfd;
-int lastid = 0;
-int sockfd;
-
-int main(int ac, char **av) {
-	
-	sockfd = socket(AF_INET, SOCK_STREAM, 0);
-
-	while (1) {
-	}
-}

flake.nix

@@ -34,6 +34,10 @@
             ];
             packages = with pkgs; [
               nixfmt-rfc-style
+			  glibcInfo
+			  man
+			  man-pages
+			  man-pages-posix
               valgrind
               gdb
             ];

mini_serv.c

@@ -22,6 +22,21 @@ int sockfd;
 
 fd_set main_fd, read_fd;
 
+void append_client(int cli_fd) {
+	lastid++;
+	clients[cli_fd].id = lastid;
+	clients[cli_fd].msg = NULL;
+	FD_SET(cli_fd, &main_fd);
+}
+
+void send_all() {
+	size_t len = strlen(send_buf);
+
+	for (int i = 0; i <= maxfd; i++)
+		if (FD_ISSET(i, &read_fd))
+			send(i, send_buf, len, 0);
+}
+
 int send_error(void) {
 	for (int i = 0; i < FD_SETSIZE; i++)
 		if (FD_ISSET(i, &main_fd))
@@ -37,17 +52,16 @@ int main(int ac, char **av) {
 		return (EXIT_FAILURE);
 	}
 
-	int				   len;
+	socklen_t		   len;
 	struct sockaddr_in servaddr, cli;
 
 	sockfd = socket(AF_INET, SOCK_STREAM, 0);
 	if (sockfd == -1)
 		return (send_error());
 
-	servaddr.sin_family = AF_INET; 
-	servaddr.sin_addr.s_addr = htonl(2130706433); //127.0.0.1
-	servaddr.sin_port = htons(atoi(av[1])); 
-
+	servaddr.sin_family = AF_INET;
+	servaddr.sin_addr.s_addr = htonl(2130706433); // 127.0.0.1
+	servaddr.sin_port = htons(atoi(av[1]));
 
 	if (bind(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) != 0)
 		return (send_error());
@@ -56,6 +70,7 @@ int main(int ac, char **av) {
 		return (send_error());
 
 	FD_ZERO(&main_fd);
+	FD_ZERO(&read_fd);
 	FD_SET(sockfd, &main_fd);
 	maxfd = sockfd;
 
@@ -68,9 +83,19 @@ int main(int ac, char **av) {
 		for (int i = 0; i <= maxfd; i++) {
 			if (FD_ISSET(i, &read_fd)) {
 				if (i == sockfd) {
+					len = sizeof(cli);
+					int cli_fd = accept(i, (struct sockaddr *)&cli, &len);
+					if (cli_fd < 0)
+						return (send_error());
 
+					if (cli_fd > maxfd)
+						maxfd = cli_fd;
+					append_client(cli_fd);
+					bzero(send_buf, 3000);
+					sprintf(send_buf, "server: client %d just arrived\n",
+							lastid);
+					send_all();
 				} else {
-
 				}
 			}
 		}