mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
0b0f98c44c
Previously it would only detect specific interfaces. Now detecting bios named devices should work.
125 lines
2.4 KiB
C
125 lines
2.4 KiB
C
#include <ctype.h>
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#include <libgen.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "common.h"
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#define PROC_NET_DEV "/proc/net/dev"
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int if_err_(int argc, char **argv) {
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char *interface;
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FILE *f;
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char buff[256], *s;
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int i;
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interface = basename(argv[0]);
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if(strncmp(interface, "if_err_", 7) != 0) {
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fputs("if_err_ invoked with invalid basename\n", stderr);
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return 1;
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}
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interface += 7;
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if(argc > 1) {
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if(!strcmp(argv[1], "autoconf")) {
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if(access(PROC_NET_DEV, R_OK) == 0) {
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puts("yes");
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return 0;
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} else {
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puts("no (/proc/net/dev not found)");
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return 1;
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}
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}
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if(!strcmp(argv[1], "suggest")) {
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if(NULL == (f = fopen(PROC_NET_DEV, "r")))
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return 1;
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while(fgets(buff, 256, f)) {
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for(s=buff;*s == ' ';++s)
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;
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i = 0;
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if(!strncmp(s, "lo:", 3))
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continue;
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if(!strncmp(s, "sit", 3)) {
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for(i=3; isdigit(s[i]); ++i)
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;
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if(s[i] == ':')
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continue;
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}
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while(s[i] != ':' && s[i] != '\0')
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++i;
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if(s[i] != ':')
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continue; /* a header line */
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s[i] = '\0';
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puts(s);
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}
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fclose(f);
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return 0;
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}
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if(!strcmp(argv[1], "config")) {
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puts("graph_order rcvd trans");
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printf("graph_title %s errors\n", interface);
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puts("graph_args --base 1000\n"
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"graph_vlabel packets in (-) / out (+) per "
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"${graph_period}\n"
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"graph_category network");
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printf("graph_info This graph shows the amount of "
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"errors on the %s network interface.\n",
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interface);
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puts("rcvd.label packets\n"
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"rcvd.type COUNTER\n"
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"rcvd.graph no\n"
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"rcvd.warning 1\n"
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"trans.label packets\n"
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"trans.type COUNTER\n"
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"trans.negative rcvd\n"
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"trans.warning 1");
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print_warncrit("rcvd");
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print_warncrit("trans");
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return 0;
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}
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}
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if(NULL == (f = fopen(PROC_NET_DEV, "r")))
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return 1;
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while(fgets(buff, 256, f)) {
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for(s=buff;*s == ' ';++s)
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;
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if(0 != strncmp(s, interface, strlen(interface)))
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continue;
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s += strlen(interface);
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if(*s != ':')
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continue;
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++s;
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while(*s == ' ')
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++s;
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for(i=1;i<3;++i) {
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while(isdigit(*s))
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++s;
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while(isspace(*s))
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++s;
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}
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for(i=0;isdigit(s[i]);++i)
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;
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printf("rcvd.value ");
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fwrite(s, 1, i, stdout);
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putchar('\n');
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s += i;
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while(isspace(*s))
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++s;
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for(i=4;i<11;++i) {
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while(isdigit(*s))
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++s;
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while(isspace(*s))
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++s;
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}
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for(i=0;isdigit(s[i]);++i)
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;
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printf("trans.value ");
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fwrite(s, 1, i, stdout);
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putchar('\n');
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}
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return 0;
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}
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