diff -ur aircrack-ptw-1.0.0/aircrack-ptw.c aircrack-ptw-1.0.0-pcap0.8/aircrack-ptw.c
--- aircrack-ptw-1.0.0/aircrack-ptw.c	2007-04-03 14:50:42.000000000 +0200
+++ aircrack-ptw-1.0.0-pcap0.8/aircrack-ptw.c	2007-04-07 16:11:09.000000000 +0200
@@ -34,6 +34,7 @@
        pcap_t * descr;
        const u_char *packet;
        struct pcap_pkthdr * hdr;
+       struct pcap_pkthdr ohdr;
        int bssoffset;
        int dstoffset;
        network * networktable = NULL;
@@ -44,6 +45,7 @@
        uint8_t iv[3];
        uint8_t keystream[16];
        int k,i;
+       hdr=&ohdr;
        
        printf("This is aircrack-ptw 1.0.0\nFor more informations see http://www.cdc.informatik.tu-darmstadt.de/aircrack-ptw/\n");
 
@@ -61,7 +63,7 @@
              printf("sorry, unsupported data link layer\n");
 	     return -1;
        }
-       while(pcap_next_ex(descr, &hdr, &packet) != -2) {
+       while((packet=pcap_next(descr, hdr)) != NULL) {
              if (((hdr->len == 68) || (hdr->len == 86) ) && (packet[0] == 0x08)) {
                   // ARP
                   // Find the right state