| 1 |
/* |
| 2 |
* i-scream central monitoring system |
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* http://www.i-scream.org.uk |
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* Copyright (C) 2000-2002 i-scream |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
| 23 |
#include "ukcprog.h" |
| 24 |
#include <string.h> |
| 25 |
#include <unistd.h> |
| 26 |
#include <sys/utsname.h> |
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#include <sys/vfs.h> |
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#include <utmp.h> |
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#include <pwd.h> |
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#include <mntent.h> |
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#include <dirent.h> |
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#include <limits.h> |
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|
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int die() { |
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exit (1); |
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} |
| 37 |
|
| 38 |
void getLoadAv() { |
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#ifdef OLDLIBC |
| 40 |
|
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FILE *f; |
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char *loadavg; |
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char *load_p; |
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|
| 45 |
if ((f=fopen("/proc/loadavg", "r" ))==NULL) { |
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errf("Failed to open load averages (%m)"); |
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die(); |
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} |
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|
| 50 |
if ((loadavg=fpgetline(f)) == NULL) { |
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errf("Failed to read any data for load averages (%m)"); |
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die(); |
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} |
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|
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if ((fclose(f)) != 0) { |
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errf("Failed to close file (%m)."); |
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die(); |
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} |
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|
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load_p=strtok(loadavg, " "); |
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printf("packet.load.load1 %s\n",load_p); |
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for(; (*load_p != ' ') && (*load_p != '\0'); load_p++); |
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load_p++; |
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if (load_p == NULL) abort(); |
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load_p=strtok(load_p, " "); |
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if (load_p == NULL) abort(); |
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printf("packet.load.load5 %s\n",load_p); |
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for(; (*load_p != ' ') && (*load_p != '\0'); load_p++); |
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load_p++; |
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if (load_p == NULL) abort(); |
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load_p=strtok(load_p, " "); |
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if (load_p == NULL) abort(); |
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printf("packet.load.load15 %s\n",load_p); |
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|
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#else |
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double loadav[3]; |
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|
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if((getloadavg(loadav,3)) == -1){ |
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errf("Failed to get load averages (%m)"); |
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die(); |
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} |
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|
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printf("packet.load.load1 %.2f\n",loadav[0]); |
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printf("packet.load.load5 %.2f\n",loadav[1]); |
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printf("packet.load.load15 %.2f\n",loadav[2]); |
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#endif |
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} |
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|
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void getMemInfo() { |
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char *line; |
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char *mem=NULL; |
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char *swap=NULL; |
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char *ch; |
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long memstat[6]; |
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long swapstat[3]; |
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long tmp; |
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int counter=0; |
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|
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FILE *f; |
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|
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if ((f=fopen("/proc/meminfo", "r" ))==NULL) { |
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errf("Failed to open memory stats (%m)"); |
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die(); |
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} |
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|
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while(((line=fpgetline(f)) != NULL) && (counter < 2)) { |
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if (((strncmp("Mem: ",line,5)) == 0)) { |
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mem=strdup(line); |
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counter++; |
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} |
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if (((strncmp(line,"Swap: ",6)) == 0)) { |
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swap=strdup(line); |
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counter++; |
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} |
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} |
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|
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if ((fclose(f)) != 0) { |
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errf("Failed to close file (%m)."); |
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die(); |
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} |
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|
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if (mem==NULL || swap==NULL){ |
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errf("Failed to obtain information required for memory and swap stats"); |
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die(); |
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} |
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|
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/* Get the info we want from the 2 read in lines */ |
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|
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ch = strchr(mem, ' '); |
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if (ch == NULL) abort(); |
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*ch = '\0'; |
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ch++; |
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|
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/* By now we should of skipped the mem: bit.. onto the numbers */ |
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|
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for(counter=0;counter<6;counter++) { |
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for (; (*ch == ' '); ch++); |
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if (ch == NULL) abort(); |
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memstat[counter]=atol(ch); |
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ch++; |
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for(; (*ch != ' ') && (*ch != '\0'); ch++); |
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if (ch == NULL) abort(); |
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} |
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|
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/* Now swap.. */ |
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ch = strchr(swap, ' '); |
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if (ch == NULL) abort(); |
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*ch = '\0'; |
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ch++; |
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|
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for(counter=0;counter<3;counter++) { |
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for (; (*ch == ' '); ch++); |
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if (ch == NULL) abort(); |
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swapstat[counter]=atol(ch); |
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ch++; |
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for(; (*ch != ' ') && (*ch != '\0'); ch++); |
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if (ch == NULL) abort(); |
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} |
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|
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printf("packet.memory.total %ld\n",((memstat[0]/1024)/1024)); |
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|
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/* Due to batty linux we do some maths to work out roughly what the free ram is */ |
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tmp=((memstat[1] - memstat[4])/1024)/1024; |
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printf("packet.memory.used %ld\n",tmp); |
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tmp=((memstat[2] + memstat[4])/1024)/1024; |
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printf("packet.memory.free %ld\n",tmp); |
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|
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printf("packet.swap.total %ld\n",((swapstat[0]/1024)/1024)); |
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printf("packet.swap.used %ld\n",((swapstat[1]/1024)/1024)); |
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printf("packet.swap.free %ld\n",((swapstat[2])/1024)/1024); |
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|
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free(mem); |
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free(swap); |
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} |
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|
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void cpustats() { |
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char *tmp; |
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char *line[2]; |
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char *line_p[2]; |
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long cpustats[4][2]; |
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long user, kernel, idle; |
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long total; |
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int x,y; |
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float usage; |
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FILE *f; |
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|
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if ((f=fopen("/proc/stat", "r" ))==NULL) { |
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errf("Failed to open cpu stats (%m)"); |
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die(); |
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} |
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|
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if((tmp=fpgetline(f)) == NULL) { |
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errf("Failed to read cpu stats (%m)"); |
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die(); |
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} |
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|
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if((line[0]=strdup(tmp)) == NULL) { |
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errf("strdup failed (%m)"); |
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die(); |
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} |
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|
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if ((fclose(f)) != 0) { |
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errf("Failed to close file (%m)."); |
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die(); |
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} |
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|
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sleep(1); |
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|
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if ((f=fopen("/proc/stat", "r" ))==NULL) { |
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errf("Failed to open cpu stats (%m)"); |
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die(); |
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} |
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|
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if((tmp=fpgetline(f)) == NULL) { |
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errf("Failed to read cpu stats (%m)"); |
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die(); |
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} |
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|
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if((line[1]=strdup(tmp)) == NULL) { |
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errf("strdup failed (%m)"); |
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die(); |
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} |
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|
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if ((fclose(f)) != 0) { |
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errf("Failed to close file (%m)."); |
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die(); |
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} |
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|
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for(x=0;x<2;x++) { |
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line_p[x] = strchr(line[x], ' '); |
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if (line_p[x] == NULL) abort(); |
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*line_p[x] = '\0'; |
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line_p[x]++; |
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} |
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|
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/* Now should be passed "cpu " */ |
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|
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for(x=0;x<2;x++) { |
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for(y=0;y<4;y++) { |
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for (; (*line_p[x] == ' '); line_p[x]++); |
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if (line_p[x] == NULL) abort(); |
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cpustats[y][x]=atol(line_p[x]); |
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line_p[x]++; |
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for(; (*line_p[x] != ' ') && (*line_p[x] != '\0'); line_p[x]++); |
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if (line_p[x] == NULL) abort(); |
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for (; (*line_p[x] == ' '); line_p[x]++); |
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} |
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} |
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|
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user=cpustats[0][1]-cpustats[0][0]+cpustats[1][1]-cpustats[1][0]; |
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kernel=cpustats[2][1]-cpustats[2][0]; |
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idle=cpustats[3][1]-cpustats[3][0]; |
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|
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/* use total to get the total number and then work out the percentages */ |
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total=user+kernel+idle; |
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|
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usage=((((float)user)/((float)total))*100.00); |
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printf("packet.cpu.user %3.2f\n", usage); |
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usage=((((float)kernel)/((float)total))*100.00); |
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printf("packet.cpu.kernel %3.2f\n", usage); |
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usage=((((float)idle)/((float)total))*100.00); |
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printf("packet.cpu.idle %3.2f\n", usage); |
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|
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/* Cos i-scream's expects this to be sent :/ */ |
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printf("packet.cpu.iowait 0\n"); |
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printf("packet.cpu.swap 0\n"); |
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|
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free(line[0]); |
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free(line[1]); |
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} |
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|
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void processStats() { |
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int sleeping=0; |
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int zombie=0; |
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int stopped=0; |
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int running=0; |
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int nousers=0; |
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char *line; |
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char *line_ptr; |
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struct utmp *entry; |
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DIR *procdir; |
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struct dirent *procent; |
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char fname[_POSIX_PATH_MAX]; |
| 284 |
FILE *f; |
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|
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chdir("/proc"); |
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if((procdir=opendir(".")) == NULL){ |
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errf("Failed to open proc (%m)"); |
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exit(1); |
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} |
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|
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while((procent = readdir(procdir)) != NULL){ |
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if(atoi(procent->d_name) == 0) continue; |
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strncpy(fname, procent->d_name, _POSIX_PATH_MAX-7); |
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strcat(fname, "/status"); |
| 296 |
|
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if((f=fopen(fname, "r")) == NULL){ |
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errf("Failed to open process stat (%m)"); |
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exit(1); |
| 300 |
} |
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|
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while((line=fpgetline(f)) != NULL){ |
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if(strncasecmp(line,"State:",6)==0) break; |
| 304 |
} |
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|
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line_ptr=line; |
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for(;*line_ptr++ != '\t';); |
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|
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|
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if(*line_ptr=='R') running++; |
| 311 |
if(*line_ptr=='S') sleeping++; |
| 312 |
if(*line_ptr=='Z') zombie++; |
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if(*line_ptr=='T') stopped++; |
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if(*line_ptr=='D') stopped++; |
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|
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} |
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closedir(procdir); |
| 318 |
|
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printf("packet.users.list"); |
| 320 |
|
| 321 |
while((entry=getutent()) != NULL) { |
| 322 |
if(entry->ut_type==USER_PROCESS) { |
| 323 |
printf(" %s",entry->ut_user); |
| 324 |
nousers++; |
| 325 |
} |
| 326 |
} |
| 327 |
|
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printf("\npacket.users.count %d\n", nousers); |
| 329 |
|
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printf("packet.processes.sleeping %d\n",sleeping); |
| 331 |
printf("packet.processes.cpu %d\n",running); |
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printf("packet.processes.zombie %d\n",zombie); |
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printf("packet.processes.stopped %d\n", stopped); |
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printf("packet.processes.total %d\n", (sleeping+running+zombie+stopped)); |
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} |
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|
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void uptimeStats() { |
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char *line; |
| 339 |
char *line_p; |
| 340 |
FILE *f; |
| 341 |
|
| 342 |
if ((f=fopen("/proc/uptime", "r")) == NULL) { |
| 343 |
errf("Failed to get uptime stats (%m)"); |
| 344 |
die(); |
| 345 |
} |
| 346 |
|
| 347 |
if ((line=fpgetline(f)) == NULL) { |
| 348 |
errf("Failed to read uptime stats (%m)"); |
| 349 |
die(); |
| 350 |
} |
| 351 |
|
| 352 |
if ((fclose(f)) != 0) { |
| 353 |
errf("Failed to close file (%m)."); |
| 354 |
die(); |
| 355 |
} |
| 356 |
|
| 357 |
line_p=strchr(line, '.'); |
| 358 |
if (line_p==NULL) abort(); |
| 359 |
*line_p='\0'; |
| 360 |
|
| 361 |
printf("packet.os.uptime %s\n", line); |
| 362 |
} |
| 363 |
|
| 364 |
void osStats() { |
| 365 |
struct utsname os; |
| 366 |
|
| 367 |
if((uname(&os)) != 0) { |
| 368 |
errf("Failed to get os stats (%m)"); |
| 369 |
die(); |
| 370 |
} |
| 371 |
|
| 372 |
printf("packet.os.name %s\n", os.sysname); |
| 373 |
printf("packet.os.release %s\n" , os.release); |
| 374 |
printf("packet.os.version %s\n", os.version); |
| 375 |
printf("packet.os.sysname %s\n" , os.nodename); |
| 376 |
printf("packet.os.platform %s\n", os.machine); |
| 377 |
} |
| 378 |
|
| 379 |
void diskStats() { |
| 380 |
|
| 381 |
struct mntent *mp; |
| 382 |
struct statfs df; |
| 383 |
FILE *f; |
| 384 |
int counter=0; |
| 385 |
|
| 386 |
if ((f=fopen("/etc/mtab", "r" ))==NULL){ |
| 387 |
errf("Failed to open mounts (%m)"); |
| 388 |
die(); |
| 389 |
} |
| 390 |
|
| 391 |
while((mp=getmntent(f))){ |
| 392 |
if ((statfs(mp->mnt_dir, &df)) !=0){ |
| 393 |
errf("Failed to gets fs stats (%m)"); |
| 394 |
continue; |
| 395 |
} |
| 396 |
|
| 397 |
if((((strcmp(mp->mnt_type, MNTTYPE_NFS))==0) || (strcmp(mp->mnt_type,MNTTYPE_IGNORE)) ==0)) continue; |
| 398 |
|
| 399 |
printf("packet.disk.p%d.attributes.mount %s\n", counter, mp->mnt_dir); |
| 400 |
printf("packet.disk.p%d.attributes.name %s\n", counter, mp->mnt_fsname); |
| 401 |
printf("packet.disk.p%d.attributes.kbytes %lu\n",counter, ((df.f_bsize/1024) * df.f_blocks)); |
| 402 |
printf("packet.disk.p%d.attributes.used %lu\n",counter, (((df.f_bsize/1024) * df.f_blocks) -((df.f_bsize/1024) * df.f_bfree))); |
| 403 |
printf("packet.disk.p%d.attributes.avail %lu\n",counter, (df.f_bsize/1024) * df.f_bavail); |
| 404 |
printf("packet.disk.p%d.attributes.totalinodes %lu\n", counter, df.f_files); |
| 405 |
printf("packet.disk.p%d.attributes.freeinodes %lu\n",counter, df.f_ffree); |
| 406 |
|
| 407 |
counter++; |
| 408 |
} |
| 409 |
|
| 410 |
|
| 411 |
|
| 412 |
} |
| 413 |
|
| 414 |
int main() { |
| 415 |
getLoadAv(); |
| 416 |
getMemInfo(); |
| 417 |
cpustats(); |
| 418 |
processStats(); |
| 419 |
uptimeStats(); |
| 420 |
osStats(); |
| 421 |
diskStats(); |
| 422 |
fflush(stdout); |
| 423 |
return 0; |
| 424 |
} |
