From 3213a56d1b75df29735323c89c6acd54645749b1 Mon Sep 17 00:00:00 2001
From: 0x35c <>
Date: Mon, 26 May 2025 12:43:50 +0200
Subject: [PATCH] fix: add the dest address to conn_addr (bozo)

---
 src/packet.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/packet.c b/src/packet.c
index d2c2051..b829c03 100644
--- a/src/packet.c
+++ b/src/packet.c
@@ -95,11 +95,21 @@ static void *create_packet(const struct scan *data, size_t packet_size)
 int send_packets(const struct scan *data, int sockfd)
 {
 	struct sockaddr_in conn_addr;
+	conn_addr.sin_family = AF_INET;
+	conn_addr.sin_addr.s_addr = inet_addr(data->dest_addr);
 
 	size_t packet_size = sizeof(struct iphdr) +
 	                     (data->type == SCAN_UDP ? sizeof(struct udphdr)
 	                                             : sizeof(struct tcphdr));
 	void *packet = create_packet(data, packet_size);
+
+	int one = 1;
+	const int *val = &one;
+	if (setsockopt(sockfd, IPPROTO_IP, IP_HDRINCL, val, sizeof(one)) < 0) {
+		perror("Error setting IP_HDRINCL");
+		return -1;
+	}
+
 	sendto(sockfd, packet, packet_size, 0, (struct sockaddr *)&conn_addr,
 	       sizeof(struct sockaddr_in));
 	free(packet);