libstatgrab/examples/network_traffic.c

/*
 * i-scream central monitoring system
 * 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 1.9 2004/03/06 22:37:27 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;
        extern int optind;
        int c;

        /* We default to 1 second updates and displaying in bytes*/
        int delay = 1;
        char units = 'b';

        network_stat_t *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 */
        statgrab_init();

        /* Drop setuid/setgid privileges. */
        if (statgrab_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 = get_network_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 = get_network_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 : %ld ", line_number++, "Network Interface packets in", network_stats->ipackets);
                        printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface packets out", network_stats->opackets);
                        printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface errors in", network_stats->ierrors);
                        printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface errors out", network_stats->oerrors);
                        printf("\033[%d;2H%-30s : %ld ", 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;

}
Revision:	1.10
Committed:	Mon Mar 8 11:58:20 2004 UTC (20 years, 8 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.9:	+6 -6 lines
Log Message:	Fix layout problems with network traffic example.
#	User	Rev	Content
1	pajs	1.1	/*
2			* i-scream central monitoring system
3	tdb	1.3	* http://www.i-scream.org
4	tdb	1.7	* Copyright (C) 2000-2004 i-scream
5	pajs	1.1	*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19	tdb	1.8	*
20	tdb	1.10	* $Id: network_traffic.c,v 1.9 2004/03/06 22:37:27 tdb Exp $
21	pajs	1.1	*/
22
23			/* A very basic example of how to get the network statistics from the system
24			* and diaply them. Also it adds up all the traffic to create and print out
25			* a total
26			* Takes several arguments :
27			* -d <number> Takes the number of seconds to wait to get traffic sent since last call
28	tdb	1.5	* Note, this is not network traffic per second. Its the traffic since last
29			* call. If you want it traffic per second averaged over time since last call
30	pajs	1.1	* You need to divide against the time since last time this was called. The time
31			* between 2 calls is stored in systime in the network_stat_t structure.
32			* -b Display in bytes
33			* -k Display in kilobytes
34	tdb	1.5	* -m Display in megabytes
35	pajs	1.1	*/
36
37			#include <stdio.h>
38			#include <statgrab.h>
39			#include <stdlib.h>
40			#include <unistd.h>
41
42			int main(int argc, char **argv){
43
44			extern char *optarg;
45			extern int optind;
46			int c;
47
48			/* We default to 1 second updates and displaying in bytes*/
49			int delay = 1;
50			char units = 'b';
51
52			network_stat_t *network_stats;
53			int num_network_stats;
54
55			/* Parse command line options */
56	ats	1.4	while ((c = getopt(argc, argv, "d:bkm")) != -1){
57	pajs	1.1	switch (c){
58			case 'd':
59			delay = atoi(optarg);
60			break;
61			case 'b':
62			units = 'b';
63			break;
64			case 'k':
65			units = 'k';
66			break;
67			case 'm':
68			units = 'm';
69			break;
70			}
71			}
72
73	tdb	1.5	/* Initialise statgrab */
74			statgrab_init();
75
76	ats	1.6	/* Drop setuid/setgid privileges. */
77			if (statgrab_drop_privileges() != 0) {
78			perror("Error. Failed to drop privileges");
79			return 1;
80			}
81
82	tdb	1.5	/* We are not interested in the amount of traffic ever transmitted, just differences.
83	pajs	1.1	* Because of this, we do nothing for the very first call.
84			*/
85	tdb	1.5
86	pajs	1.1	network_stats = get_network_stats_diff(&num_network_stats);
87			if (network_stats == NULL){
88			perror("Error. Failed to get network stats");
89			return 1;
90			}
91
92			/* Clear the screen ready for display the network stats */
93			printf("\033[2J");
94	tdb	1.5
95	pajs	1.1	/* Keep getting the network stats */
96			while ( (network_stats = get_network_stats_diff(&num_network_stats)) != NULL){
97			int x;
98			int line_number = 2;
99
100			long long total_tx=0;
101			long long total_rx=0;
102	tdb	1.9	long long total_ipackets=0;
103			long long total_opackets=0;
104			long long total_ierrors=0;
105			long long total_oerrors=0;
106			long long total_collisions=0;
107	pajs	1.1
108			for(x = 0; x < num_network_stats; x++){
109			/* Print at location 2, linenumber the interface name */
110	tdb	1.9	printf("\033[%d;2H%-30s : %-10s", line_number++, "Network Interface Name", network_stats->interface_name);
111	pajs	1.1	/* Print out at the correct location the traffic in the requsted units passed at command time */
112			switch(units){
113			case 'b':
114	tdb	1.9	printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Interface Rx", network_stats->rx);
115			printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Interface Tx", network_stats->tx);
116	pajs	1.1	break;
117			case 'k':
118	tdb	1.9	printf("\033[%d;2H%-30s : %5lld k", line_number++, "Network Interface Rx", (network_stats->rx / 1024));
119			printf("\033[%d;2H%-30s : %5lld", line_number++, "Network Interface Tx", (network_stats->tx / 1024));
120	tdb	1.5	break;
121	pajs	1.1	case 'm':
122	tdb	1.9	printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Interface Rx", network_stats->rx / (1024.00*1024.00));
123			printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Interface Tx", network_stats->tx / (1024.00*1024.00));
124	pajs	1.1	}
125	tdb	1.9	printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface packets in", network_stats->ipackets);
126			printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface packets out", network_stats->opackets);
127			printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface errors in", network_stats->ierrors);
128			printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface errors out", network_stats->oerrors);
129			printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface collisions", network_stats->collisions);
130			printf("\033[%d;2H%-30s : %ld ", line_number++, "Network Interface systime", (long) network_stats->systime);
131	tdb	1.5
132	pajs	1.1	/* Add a blank line between interfaces */
133			line_number++;
134
135			/* Add up this interface to the total so we can display a "total" network io" */
136			total_tx+=network_stats->tx;
137			total_rx+=network_stats->rx;
138	tdb	1.9	total_ipackets+=network_stats->ipackets;
139			total_opackets+=network_stats->opackets;
140			total_ierrors+=network_stats->ierrors;
141			total_oerrors+=network_stats->oerrors;
142			total_collisions+=network_stats->collisions;
143	pajs	1.1
144			/* Move the pointer onto the next interface. Since this returns a static buffer, we dont need
145			* to keep track of the orginal pointer to free later */
146			network_stats++;
147			}
148	tdb	1.5
149	tdb	1.9	printf("\033[%d;2H%-30s : %-10s", line_number++, "Network Interface Name", "Total Network IO");
150	pajs	1.1	switch(units){
151			case 'b':
152	tdb	1.9	printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Total Rx", total_rx);
153			printf("\033[%d;2H%-30s : %8lld b", line_number++, "Network Total Tx", total_tx);
154	pajs	1.1	break;
155			case 'k':
156	tdb	1.9	printf("\033[%d;2H%-30s : %5lld k", line_number++, "Network Total Rx", (total_rx / 1024));
157			printf("\033[%d;2H%-30s : %5lld k", line_number++, "Network Total Tx", (total_tx / 1024));
158	pajs	1.1	break;
159			case 'm':
160	tdb	1.9	printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Total Rx", (total_rx / (1024.00*1024.00)));
161			printf("\033[%d;2H%-30s : %5.2f m", line_number++, "Network Total Tx", (total_tx / (1024.00*1024.00)));
162	pajs	1.1	break;
163			}
164	tdb	1.10	printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total packets in", total_ipackets);
165			printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total packets out", total_opackets);
166			printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total errors in", total_ierrors);
167			printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total errors out", total_oerrors);
168			printf("\033[%d;2H%-30s : %lld ", line_number++, "Network Total collisions", total_collisions);
169	tdb	1.5
170	pajs	1.1	fflush(stdout);
171
172			sleep(delay);
173
174			}
175
176			return 0;
177
178			}