1 files changed, 83 insertions, 0 deletions
diff --git a/listen.c b/listen.c
new file mode 100644
index 0000000..8557a60
--- /dev/null
+++ b/listen.c
@@ -0,0 +1,83 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+// int listen(int sockfd, int backlog); 
+
+#define BACKLOG 2
+
+int main () {
+
+	int sockfd;
+	int gai_result;
+	int bind_result;
+	struct addrinfo *res;
+	struct addrinfo hints;
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = AF_INET;
+	hints.ai_socktype = SOCK_STREAM;
+	hints.ai_flags = AI_PASSIVE;
+
+	gai_result = getaddrinfo(NULL, "62000", &hints, &res);
+	if (gai_result != 0) {
+		fprintf(stderr, "gai_result: %d\n", gai_result);
+		exit(1);
+	}
+
+	sockfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+	if (sockfd == -1) {
+		fprintf(stderr, "sockfd: %d\n", sockfd);
+		exit(1);
+	}
+
+	bind_result = bind(sockfd, res->ai_addr, res->ai_addrlen);
+	if (bind_result != 0) {
+		fprintf(stderr, "bind_result: %d\n", bind_result);
+		exit(1);
+	}
+
+	listen(sockfd, BACKLOG);
+	socklen_t addr_size;
+	struct sockaddr_storage their_addr;
+	addr_size = sizeof(their_addr);
+	int newfd;
+	newfd = accept(sockfd, (struct sockaddr *)&their_addr, &addr_size);
+	if (newfd == -1) {
+		fprintf(stderr, "newfd: %d\n", newfd);
+		exit(1);
+	}
+
+	char *msg = "Server says hi!\n";
+	int len;
+	int bytes_sent;
+	len = strlen(msg);
+	bytes_sent = send(newfd, msg, len, 0);
+
+	int rlen = 1000;
+	int recv_ret;
+	size_t bytes_recieved = 0;
+	while(true) {
+
+		char recvmsg[rlen]; 
+		recv_ret = recv(newfd, recvmsg, rlen, 0);
+		bytes_recieved = bytes_recieved+recv_ret;
+		if (recv_ret < 1) {
+			break;
+		}
+		recvmsg[recv_ret] = '\0';
+		fprintf(stdout, "%s", recvmsg);
+		memset(&recvmsg, 0, (size_t)rlen);
+	}
+	fprintf(stdout, "bytes recieved: %ld\nbytes sent: %d\n", bytes_recieved, bytes_sent);
+ 
+	return 0;
+}