fixed ip stuff

[my-code/hdw-sniff.git] / hdw-sniff.c

diff --git a/hdw-sniff.c b/hdw-sniff.c
index 816e778..fc67686 100644 (file)
--- a/hdw-sniff.c
+++ b/hdw-sniff.c
@@ -228,16 +228,16 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
                printf("service = %x ",ntohs(ip_hdr->tos));
                printf("total_length(dec.) = %d \n",ntohs(ip_hdr->tot_len));
                printf("source_ip: ");
-               for(i=3;i>=0;--i) {
+               for(i=0;i<=3;++i) {
                        printf("%d%s",
-                       ip_hdr->saddr&0xff<<i,
-                       (i==0?"\n":"."));
+                       (ip_hdr->saddr&(0xff<<(8*i)))>>(8*i),
+                       (i==3?"\n":"."));
                }
                printf("destination_ip: ");
-               for(i=3;i>=0;--i) {
+               for(i=0;i<=3;++i) {
                        printf("%d%s",
-                       ip_hdr->daddr&0xff<<i,
-                       (i==0?"\n":"."));
+                       (ip_hdr->daddr&(0xff<<(8*i)))>>(8*i),
+                       (i==3?"\n":"."));
                }
                printf("ip_id = %x ",ntohs(ip_hdr->id));
                printf("ip_offset = %x \n",ntohs(ip_hdr->frag_off));