kod:
#include <stdlib.h>
#include <stdio.h>
#include <pcap.h>
void usage();
void dispatcher_handler(u_char *, const struct pcap_pkthdr *, const u_char *);
void main(int argc, char **argv)
{
pcap_t *fp;
char errbuf[PCAP_ERRBUF_SIZE];
struct timeval st_ts;
u_int netmask;
struct bpf_program fcode;
/* Check the validity of the command line */
if (argc != 2)
{
usage();
return 1;
}
/* Open the output adapter */
if ( (fp= pcap_open(argv[1], 100, PCAP_OPENFLAG_PROMISCUOUS, 1000, NULL, errbuf) ) == NULL)
{
fprintf(stderr,"\nUnable to open adapter %s.\n", errbuf);
return 1;
}
/* Don't care about netmask, it won't be used for this filter */
netmask=0xffffff;
//compile the filter
if (pcap_compile(fp, &fcode, "tcp", 1, netmask) <0 )
{
fprintf(stderr,"\nUnable to compile the packet filter. Check the syntax.\n");
/* Free the device list */
return 1;
}
//set the filter
if (pcap_setfilter(fp, &fcode)<0)
{
fprintf(stderr,"\nError setting the filter.\n");
pcap_close(fp);
/* Free the device list */
return 1;
}
/* Put the interface in statstics mode */
if (pcap_setmode(fp, MODE_STAT)<0)
{
fprintf(stderr,"\nError setting the mode.\n");
pcap_close(fp);
/* Free the device list */
return 1;
}
printf("TCP traffic summary:\n");
/* Start the main loop */
pcap_loop(fp, 0, dispatcher_handler, (PUCHAR)&st_ts);
pcap_close(fp);
return 1;
}
void dispatcher_handler(u_char *state, const struct pcap_pkthdr *header, const u_char *pkt_data)
{
struct timeval *old_ts = (struct timeval *)state;
u_int delay;
LARGE_INTEGER Bps,Pps;
struct tm ltime;
char timestr[16];
time_t local_tv_sec;
/* Calculate the delay in microseconds from the last sample. */
/* This value is obtained from the timestamp that the associated with the sample. */
delay=(header->ts.tv_sec - old_ts->tv_sec) * 1000000 - old_ts->tv_usec + header->ts.tv_usec;
/* Get the number of Bits per second */
Bps.QuadPart=(((*(LONGLONG*)(pkt_data + 8)) * 8 * 1000000) / (delay));
/* ^ ^
| |
| |
| |
converts bytes in bits -- |
|
delay is expressed in microseconds --
*/
/* Get the number of Packets per second */
Pps.QuadPart=(((*(LONGLONG*)(pkt_data)) * 1000000) / (delay));
/* Convert the timestamp to readable format */
local_tv_sec = header->ts.tv_sec;
localtime_s(<ime, &local_tv_sec);
strftime( timestr, sizeof timestr, "%H:%M:%S", <ime);
/* Print timestamp*/
printf("%s ", timestr);
/* Print the samples */
printf("BPS=%I64u ", Bps.QuadPart);
printf("PPS=%I64u\n", Pps.QuadPart);
//store current timestamp
old_ts->tv_sec=header->ts.tv_sec;
old_ts->tv_usec=header->ts.tv_usec;
}
void usage()
{
printf("\nShows the TCP traffic load, in bits per second and packets per second.\nCopyright (C) 2002 Loris Degioanni.\n");
printf("\nUsage:\n");
printf("\t tcptop adapter\n");
printf("\t You can use \"WinDump -D\" if you don't know the name of your adapters.\n");
exit(0);
}
I wywala takie błędy:
26 C:\Dev-Cpp\main.cpp PCAP_OPENFLAG_PROMISCUOUS' undeclared (first use this function) 26 C:\Dev-Cpp\main.cpp
pcap_open' undeclared (first use this function)
99 C:\Dev-Cpp\main.cpp `localtime_s' undeclared (first use this function)