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#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <ctype.h>
#include "common.h"
#define PROC_NET_SNMP "/proc/net/snmp"
int fw_packets(int argc, char **argv) {
FILE *f;
char buff[1024], *s;
if(argc > 1) {
if(!strcmp(argv[1], "config")) {
puts("graph_title Firewall Throughput\n"
"graph_args --base 1000 -l 0\n"
"graph_vlabel Packets/${graph_period}\n"
"graph_category network\n"
"received.label Received\n"
"received.draw AREA\n"
"received.type DERIVE\n"
"received.min 0\n"
"forwarded.label Forwarded\n"
"forwarded.draw LINE2\n"
"forwarded.type DERIVE\n"
"forwarded.min 0");
return 0;
}
if(!strcmp(argv[1], "autoconf")) {
if(0 == access(PROC_NET_SNMP, R_OK))
return writeyes();
else
return writeno(PROC_NET_SNMP " not readable");
}
}
if(!(f=fopen(PROC_NET_SNMP, "r"))) {
fputs("cannot open " PROC_NET_SNMP "\n", stderr);
return 1;
}
while(fgets(buff, 1024, f)) {
if(!strncmp(buff, "Ip: ", 4) && isdigit(buff[4])) {
fclose(f);
if(!(s = strtok(buff+4, " \t")))
break;
if(!(s = strtok(NULL, " \t")))
break;
if(!(s = strtok(NULL, " \t")))
break;
printf("received.value %s\n", s);
if(!(s = strtok(NULL, " \t")))
break;
if(!(s = strtok(NULL, " \t")))
break;
if(!(s = strtok(NULL, " \t")))
break;
printf("forwarded.value %s\n", s);
return 0;
}
}
fclose(f);
fputs("no ip line found in " PROC_NET_SNMP "\n", stderr);
return 1;
}
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