server.c: Create server struct

1 files changed, 41 insertions, 0 deletions

diff --git a/server.c b/server.c
new file mode 100644
index 0000000..d7edb04
--- /dev/null
+++ b/server.c
@@ -0,0 +1,41 @@
+#include "server.h"
+
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+server_t
+server_create(uint32_t port)
+{
+  int server_fd = socket(AF_INET, SOCK_STREAM, 0);
+  if (server_fd == -1) {
+    perror("[ERROR] unable to create a socket");
+    exit(EXIT_FAILURE);
+  }
+
+  struct sockaddr_in server;
+  server.sin_addr.s_addr = htonl(INADDR_ANY);
+  server.sin_family = AF_INET;
+  server.sin_port = htons(port);
+
+  int opt_val = 1;
+  setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &opt_val, sizeof(opt_val));
+
+  if (bind(server_fd, (struct sockaddr *) &server, sizeof(server)) == -1) {
+    perror("[ERROR] could not bind");
+    close(server_fd);
+    exit(EXIT_FAILURE);
+  }
+
+  if (listen(server_fd, SOMAXCONN) == -1) {
+    perror("[ERROR] could not listen");
+    close(server_fd);
+    exit(EXIT_FAILURE);
+  }
+
+  printf("[INFO] server listening at port (%d)\n", port);
+
+  return (server_t) { .fd = server_fd };
+}