[Winpcap-users] pcap_findalldevs on Windows 7

[oleg levin]

Hello,
 
We use WinPcap 4.1.2 library on Windows 7 and have a problem in pcap_findalldevs 
function call.
The function returns 0 (success), but interfaces list is empty (equels to 0):
 
int main(int argc,char*argv[])
{
    pcap_if_t *pcap_ifs = NULL;
    char pcap_error_buf[PCAP_ERRBUF_SIZE];
     
    if(pcap_findalldevs(&pcap_ifs, pcap_error_buf)<0) 
          fprintf(stderr,"Error:pcap_findalldevs failed.\n");
    else if (!pcap_ifs)
          fprintf(stderr,"Error:failed to fetch network interfaces list.\n");
   return 0; 
}
 
C:\>PcapTest.exe
Error: failed to fetch network interface list.
 
Can you please help to solve this issue?  
 
Thanks,
Oleg Levin
Software engineer
Correlsense
IT Reliability™ through Transaction Management