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root/i-scream/projects/libstatgrab/examples/network_traffic.c
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Comparing projects/libstatgrab/examples/network_traffic.c (file contents):
Revision 1.1 by pajs, Sun May 11 17:05:24 2003 UTC vs.
Revision 1.7 by tdb, Fri Jan 16 15:54:52 2004 UTC

# Line 1 | Line 1
1   /*
2   * i-scream central monitoring system
3 < * http://www.i-scream.org.uk
4 < * Copyright (C) 2000-2002 i-scream
3 > * http://www.i-scream.org
4 > * Copyright (C) 2000-2004 i-scream
5   *
6   * This program is free software; you can redistribute it and/or
7   * modify it under the terms of the GNU General Public License
# Line 23 | Line 23
23   * a total
24   * Takes several arguments :
25   * -d <number>  Takes the number of seconds to wait to get traffic sent since last call
26 < *              Note, this is not network traffic per second. Its the traffic since last
27 < *              call. If you want it traffic per second averaged over time since last call
26 > *              Note, this is not network traffic per second. Its the traffic since last
27 > *              call. If you want it traffic per second averaged over time since last call
28   *              You need to divide against the time since last time this was called. The time
29   *              between 2 calls is stored in systime in the network_stat_t structure.
30   * -b           Display in bytes
31   * -k           Display in kilobytes
32 < * -m           Display in megabytes
32 > * -m           Display in megabytes
33   */
34  
35   #include <stdio.h>
# Line 51 | Line 51 | int main(int argc, char **argv){
51          int num_network_stats;
52  
53          /* Parse command line options */
54 <        while ((c = getopt(argc, argv, "d:bkm")) != EOF){
54 >        while ((c = getopt(argc, argv, "d:bkm")) != -1){
55                  switch (c){
56                          case 'd':
57                                  delay = atoi(optarg);
# Line 68 | Line 68 | int main(int argc, char **argv){
68                  }
69          }
70  
71 <        /* We are not intrested in the amount of traffic ever transmitted, just differences.
71 >        /* Initialise statgrab */
72 >        statgrab_init();
73 >
74 >        /* Drop setuid/setgid privileges. */
75 >        if (statgrab_drop_privileges() != 0) {
76 >                perror("Error. Failed to drop privileges");
77 >                return 1;
78 >        }
79 >
80 >        /* We are not interested in the amount of traffic ever transmitted, just differences.
81           * Because of this, we do nothing for the very first call.
82           */
83 <        
83 >
84          network_stats = get_network_stats_diff(&num_network_stats);
85          if (network_stats == NULL){
86                  perror("Error. Failed to get network stats");
# Line 80 | Line 89 | int main(int argc, char **argv){
89  
90          /* Clear the screen ready for display the network stats */
91          printf("\033[2J");
92 <        
92 >
93          /* Keep getting the network stats */
94          while ( (network_stats = get_network_stats_diff(&num_network_stats)) != NULL){
95                  int x;
# Line 100 | Line 109 | int main(int argc, char **argv){
109                                          break;
110                                  case 'k':
111                                          printf("\033[%d;2H%-25s : %5lld k", line_number++, "Network Interface Rx", (network_stats->rx / 1024));
112 <                                        printf("\033[%d;2H%-25s : %5lld", line_number++, "Network Interface Tx", (network_stats->tx / 1024));
113 <                                        break;
112 >                                        printf("\033[%d;2H%-25s : %5lld", line_number++, "Network Interface Tx", (network_stats->tx / 1024));
113 >                                        break;
114                                  case 'm':
115 <                                        printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Network Interface Tx", network_stats->rx / (1024.00*1024.00));
115 >                                        printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Network Interface Rx", network_stats->rx / (1024.00*1024.00));
116                                          printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Network Interface Tx", network_stats->tx / (1024.00*1024.00));
117                          }
118                          printf("\033[%d;2H%-25s : %ld ", line_number++, "Network Interface systime", (long) network_stats->systime);
119 <                
119 >
120                          /* Add a blank line between interfaces */      
121                          line_number++;
122  
# Line 119 | Line 128 | int main(int argc, char **argv){
128                           * to keep track of the orginal pointer to free later */
129                          network_stats++;
130                  }
131 <                
131 >
132                  printf("\033[%d;2H%-25s : %-10s", line_number++, "Network Interface Name", "Total Network IO");
133                  switch(units){
134                          case 'b':
# Line 135 | Line 144 | int main(int argc, char **argv){
144                                  printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Network Total Tx", (total_tx  / (1024.00*1024.00)));
145                                  break;
146                  }
147 <                
147 >
148                  fflush(stdout);
149  
150                  sleep(delay);

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