From f0775823587944872372259c853aee47601c82e8 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard>
Date: Tue, 12 Nov 2002 00:53:33 +0000
Subject: [PATCH] ?!? wtf :)

---
 hdw-sniff.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/hdw-sniff.c b/hdw-sniff.c
index 8cbfb49..db285a2 100644
--- a/hdw-sniff.c
+++ b/hdw-sniff.c
@@ -97,7 +97,10 @@ int main(int argc, char *argv[]) {
 	/* do loopp */
 	while(1) {
 		if((select(pcap_fd+1,&pcap_fd_set,NULL,NULL,&fd_set_tv)) && (FD_ISSET(pcap_fd,&pcap_fd_set))) pcap_loop(pcap_handle,-1,pcap_process,(u_char *)&my_info_struct);
-		else hop_channel(&my_info_struct,pcap_fd);
+		else if((hop_channel(&my_info_struct,pcap_fd))==-1) { 
+			printf("channelhopping failed, aborting\n");
+			return -1;
+		}
 	}
 	return 0;
 }
@@ -191,15 +194,24 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
 
 int hop_channel(struct info_struct *info,int pcap_fd) {
 	struct iwreq my_iwreq;
+	int foo_fd;
+	/* oder vielleicht doch pcap_fd ? */
+	if((foo_fd=socket(AF_INET,SOCK_DGRAM,0))==-1) {
+		printf("unable to create socket\n");
+		return -1;
+	}
 
 	if (info->channel==15) info->channel=1;
 
 	memset(&my_iwreq,0,sizeof(my_iwreq));
 	strcpy(my_iwreq.ifr_name,info->dev);
+	printf("debug: device = %s\n",my_iwreq.ifr_name);
 	my_iwreq.u.freq.e=0;
 	my_iwreq.u.freq.m=info->channel;
-	if((ioctl(pcap_fd,SIOCSIWFREQ,& my_iwreq))==-1) {
+	// if((ioctl(foo_fd,SIOCSIWFREQ,&my_iwreq))==-1) {
+	if((ioctl(pcap_fd,SIOCSIWFREQ,&my_iwreq))==-1) {
 		printf("unable to hop channels\n");
+		perror("ioctl");
 		return -1;
 	}
 	printf("debug: hopped to channel %d\n",info->channel);
-- 
2.20.1