| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org.uk |
| 4 |
* Copyright (C) 2000-2002 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 |
| 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 |
*/ |
| 20 |
|
| 21 |
#include <stdio.h> |
| 22 |
#include "ukcprog.h" |
| 23 |
#include <string.h> |
| 24 |
#ifdef LINUX |
| 25 |
#include <dirent.h> |
| 26 |
#include <unistd.h> |
| 27 |
#include <stdlib.h> |
| 28 |
#endif |
| 29 |
char *get_process_stats(){ |
| 30 |
char *xml_ps_stats; |
| 31 |
int zombie=0; |
| 32 |
int sleeping=0; |
| 33 |
int running=0; |
| 34 |
int stopped=0; |
| 35 |
FILE *f; |
| 36 |
char *line; |
| 37 |
char *line_p; |
| 38 |
#ifdef LINUX |
| 39 |
DIR *procdir; |
| 40 |
struct dirent *procent; |
| 41 |
char fname[_POSIX_PATH_MAX]; |
| 42 |
#endif |
| 43 |
|
| 44 |
#ifdef SOLARIS |
| 45 |
#define SOL_PS_CMD "/bin/ps -Al" |
| 46 |
if((f=popen(SOL_PS_CMD, "r")) == NULL) { |
| 47 |
errf("Failed to execute the PS command (%m)"); |
| 48 |
return NULL; |
| 49 |
} |
| 50 |
|
| 51 |
/* Throw away the first line as its the header from PS */ |
| 52 |
fpgetline(f); |
| 53 |
|
| 54 |
while((line=fpgetline(f)) != NULL) { |
| 55 |
line_p=line; |
| 56 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 57 |
line_p=strchr(line_p, ' '); |
| 58 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 59 |
if (line_p==NULL) abort(); |
| 60 |
/* Ok, we should now be at the state :) .. */ |
| 61 |
if (*line_p=='S') sleeping++; |
| 62 |
if (*line_p=='R') running++; |
| 63 |
if (*line_p=='Z') zombie++; |
| 64 |
if (*line_p=='T') stopped++; |
| 65 |
} |
| 66 |
|
| 67 |
if((pclose(f)) == -1) { |
| 68 |
errf("Failed to close process stats (%m)"); |
| 69 |
return NULL; |
| 70 |
} |
| 71 |
#endif |
| 72 |
#ifdef FREEBSD |
| 73 |
#define FREEBSD_PS_CMD "/bin/ps -ax" |
| 74 |
|
| 75 |
if((f=popen(FREEBSD_PS_CMD, "r")) == NULL) { |
| 76 |
errf("Failed to execute ps"); |
| 77 |
return NULL; |
| 78 |
} |
| 79 |
|
| 80 |
/* Throw away first line */ |
| 81 |
fpgetline(f); |
| 82 |
while((line=fpgetline(f)) != NULL) { |
| 83 |
line_p=line; |
| 84 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 85 |
line_p=strchr(line_p, ' '); |
| 86 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 87 |
line_p=strchr(line_p, ' '); |
| 88 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 89 |
if (line_p==NULL) abort(); |
| 90 |
|
| 91 |
if (*line_p=='S') sleeping++; |
| 92 |
if (*line_p=='I') sleeping++; |
| 93 |
if (*line_p=='R') running++; |
| 94 |
if (*line_p=='D') running++; |
| 95 |
if (*line_p=='Z') zombie++; |
| 96 |
if (*line_p=='T') stopped++; |
| 97 |
if (*line_p=='J') running++; |
| 98 |
} |
| 99 |
|
| 100 |
if((pclose(f)) != 0) { |
| 101 |
errf("Failed to close ps (%m)"); |
| 102 |
return NULL; |
| 103 |
} |
| 104 |
#endif |
| 105 |
#ifdef LINUX |
| 106 |
chdir("/proc"); |
| 107 |
if((procdir=opendir(".")) == NULL){ |
| 108 |
errf("Failed to open proc (%m)"); |
| 109 |
return NULL; |
| 110 |
} |
| 111 |
|
| 112 |
while((procent = readdir(procdir)) != NULL){ |
| 113 |
if(atoi(procent->d_name) == 0) continue; |
| 114 |
strncpy(fname, procent->d_name, _POSIX_PATH_MAX-7); |
| 115 |
strcat(fname, "/status"); |
| 116 |
|
| 117 |
if((f=fopen(fname, "r")) == NULL){ |
| 118 |
errf("Failed to open process stat (%m)"); |
| 119 |
return NULL; |
| 120 |
} |
| 121 |
|
| 122 |
while((line=fpgetline(f)) != NULL){ |
| 123 |
if(strncasecmp(line,"State:",6)==0) break; |
| 124 |
} |
| 125 |
|
| 126 |
line_p=line; |
| 127 |
for(;*line_p++ != '\t';); |
| 128 |
|
| 129 |
|
| 130 |
if(*line_p=='R') running++; |
| 131 |
if(*line_p=='S') sleeping++; |
| 132 |
if(*line_p=='Z') zombie++; |
| 133 |
if(*line_p=='T') stopped++; |
| 134 |
if(*line_p=='D') stopped++; |
| 135 |
|
| 136 |
if ((fclose(f)) != 0) { |
| 137 |
errf("Failed to close file (%m)"); |
| 138 |
return NULL; |
| 139 |
} |
| 140 |
|
| 141 |
} |
| 142 |
closedir(procdir); |
| 143 |
#endif |
| 144 |
|
| 145 |
|
| 146 |
if((xml_ps_stats=strf("<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>", sleeping, running, zombie, stopped, (sleeping+running+zombie+stopped))) == NULL){ |
| 147 |
errf("strf failed"); |
| 148 |
return NULL; |
| 149 |
} |
| 150 |
return xml_ps_stats; |
| 151 |
} |
