From 71be209ee62236dfb484ed6ca339c525bc46ace3 Mon Sep 17 00:00:00 2001
From: Namonay <thek7995@gmail.com>
Date: Thu, 12 Sep 2024 22:51:47 +0200
Subject: [PATCH] socket is now RAW, ft_ping now check the received packet

---
 main.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index b1b5833..491c204 100644
--- a/main.c
+++ b/main.c
@@ -30,7 +30,6 @@ int ft_ping(struct t_socket sock, int *seq)
 	sock.fd = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
 	if (sock.fd < 0)
 	{
-		printf(strerror(errno));
 		fprintf(stderr, "ERROR : socket() failed\n");
 		return (0);
 	}
@@ -63,6 +62,16 @@ int ft_ping(struct t_socket sock, int *seq)
 		fprintf(stderr, "ERROR : invalid packet received (code)\n");
 		return (0);
 	}
+	if (icmp_recv_header->un.echo.id != icmp_header->un.echo.id)
+	{
+		fprintf(stderr, "ERROR : invalid packet received (id is not matching)\n");
+		return (0);
+	}
+	if (icmp_recv_header->un.echo.sequence != icmp_header->un.echo.sequence)
+	{
+		fprintf(stderr, "ERROR : invalid packet received (sequence is not matching)\n");
+		return (0);
+	}
 	printf("success");
 	close(sock.fd);
 	return (1);