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/*
* i-scream libstatgrab
* http://www.i-scream.org
* Copyright (C) 2000-2004 i-scream
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id: network_traffic.c,v 1.14 2004/04/06 14:52:56 tdb Exp $
*/
/* A very basic example of how to get the network statistics from the system
* and diaply them. Also it adds up all the traffic to create and print out
* a total
* Takes several arguments :
* -d <number> Takes the number of seconds to wait to get traffic sent since last call
* Note, this is not network traffic per second. Its the traffic since last
* call. If you want it traffic per second averaged over time since last call
* You need to divide against the time since last time this was called. The time
* between 2 calls is stored in systime in the network_stat_t structure.
* -b Display in bytes
* -k Display in kilobytes
* -m Display in megabytes
*/
#include <stdio.h>
#include <statgrab.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, char **argv){
extern char *optarg;
int c;
/* We default to 1 second updates and displaying in bytes*/
int delay = 1;
char units = 'b';
sg_network_io_stats *network_stats;
int num_network_stats;
/* Parse command line options */
while ((c = getopt(argc, argv, "d:bkm")) != -1){
switch (c){
case 'd':
delay = atoi(optarg);
break;
case 'b':
units = 'b';
break;
case 'k':
units = 'k';
break;
case 'm':
units = 'm';
break;
}
}
/* Initialise statgrab */
sg_init();
/* Drop setuid/setgid privileges. */
if (sg_drop_privileges() != 0) {
perror("Error. Failed to drop privileges");
return 1;
}
/* We are not interested in the amount of traffic ever transmitted, just differences.
* Because of this, we do nothing for the very first call.
*/
network_stats = sg_get_network_io_stats_diff(&num_network_stats);
if (network_stats == NULL){
perror("Error. Failed to get network stats");
return 1;
}
/* Clear the screen ready for display the network stats */
printf("\033[2J");
/* Keep getting the network stats */
while ( (network_stats = sg_get_network_io_stats_diff(&num_network_stats)) != NULL){
int x;
int line_number = 2;
long long total_tx=0;
long long total_rx=0;
long long total_ipackets=0;
long long total_opackets=0;
long long total_ierrors=0;
long long total_oerrors=0;
long long total_collisions=0;
for(x = 0; x < num_network_stats; x++){
/* Print at location 2, linenumber the interface name */
printf("\033[%d;2H%-30s : %-10s", line_number++, "Network Interface Name", network_stats->interface_name);
/* Print out at the correct location the traffic in the requsted units passed at command time */
switch(units){
case 'b':
printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Interface Rx", network_stats->rx);
printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Interface Tx", network_stats->tx);
break;
case 'k':
printf("\033[%d;2H%-30s : %5lld k", line_number++, "Network Interface Rx", (network_stats->rx / 1024));
printf("\033[%d;2H%-30s : %5lld", line_number++, "Network Interface Tx", (network_stats->tx / 1024));
break;
case 'm':
printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Interface Rx", network_stats->rx / (1024.00*1024.00));
printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Interface Tx", network_stats->tx / (1024.00*1024.00));
}
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Interface packets in", network_stats->ipackets);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Interface packets out", network_stats->opackets);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Interface errors in", network_stats->ierrors);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Interface errors out", network_stats->oerrors);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Interface collisions", network_stats->collisions);
printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface systime", (long) network_stats->systime);
/* Add a blank line between interfaces */
line_number++;
/* Add up this interface to the total so we can display a "total" network io" */
total_tx+=network_stats->tx;
total_rx+=network_stats->rx;
total_ipackets+=network_stats->ipackets;
total_opackets+=network_stats->opackets;
total_ierrors+=network_stats->ierrors;
total_oerrors+=network_stats->oerrors;
total_collisions+=network_stats->collisions;
/* Move the pointer onto the next interface. Since this returns a static buffer, we dont need
* to keep track of the orginal pointer to free later */
network_stats++;
}
printf("\033[%d;2H%-30s : %-10s", line_number++, "Network Interface Name", "Total Network IO");
switch(units){
case 'b':
printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Total Rx", total_rx);
printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Total Tx", total_tx);
break;
case 'k':
printf("\033[%d;2H%-30s : %5lld k", line_number++, "Network Total Rx", (total_rx / 1024));
printf("\033[%d;2H%-30s : %5lld k", line_number++, "Network Total Tx", (total_tx / 1024));
break;
case 'm':
printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Total Rx", (total_rx / (1024.00*1024.00)));
printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Total Tx", (total_tx / (1024.00*1024.00)));
break;
}
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total packets in", total_ipackets);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total packets out", total_opackets);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total errors in", total_ierrors);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total errors out", total_oerrors);
printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total collisions", total_collisions);
fflush(stdout);
sleep(delay);
}
return 0;
}
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