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tdb |
1.14 |
/* |
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pajs |
1.1 |
* i-scream central monitoring system |
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tdb |
1.9 |
* http://www.i-scream.org |
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tdb |
1.14 |
* Copyright (C) 2000-2004 i-scream |
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pajs |
1.1 |
* |
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tdb |
1.14 |
* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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pajs |
1.1 |
* |
11 |
tdb |
1.14 |
* This library is distributed in the hope that it will be useful, |
12 |
pajs |
1.1 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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tdb |
1.14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 |
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* Lesser General Public License for more details. |
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pajs |
1.1 |
* |
16 |
tdb |
1.14 |
* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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* 02111-1307 USA |
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tdb |
1.15 |
* |
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tdb |
1.16 |
* $Id: user_stats.c,v 1.15 2004/01/19 16:49:21 tdb Exp $ |
22 |
pajs |
1.1 |
*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
27 |
tdb |
1.3 |
|
28 |
pajs |
1.1 |
#include <stdlib.h> |
29 |
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#include <stdio.h> |
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#include <string.h> |
31 |
pajs |
1.8 |
#include "statgrab.h" |
32 |
ats |
1.10 |
#ifdef ALLBSD |
33 |
pajs |
1.8 |
#include <sys/types.h> |
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#endif |
35 |
pajs |
1.1 |
#include <utmp.h> |
36 |
tdb |
1.16 |
#ifdef CYGWIN |
37 |
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#include <sys/unistd.h> |
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#endif |
39 |
pajs |
1.1 |
|
40 |
pajs |
1.13 |
#ifdef SOLARIS |
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#define MAX_LOGIN_NAME_SIZE 8 |
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#endif |
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#if defined(LINUX) || defined(FREEBSD) |
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#define MAX_LOGIN_NAME_SIZE UT_NAMESIZE |
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#endif |
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#ifdef NETBSD |
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#define MAX_LOGIN_NAME_SIZE _POSIX_LOGIN_NAME_MAX |
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#endif |
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#if defined(CYGWIN) |
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#define MAX_LOGIN_NAME_SIZE _SC_LOGIN_NAME_MAX |
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#endif |
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53 |
pajs |
1.5 |
#define START_VAL (5*(1+MAX_LOGIN_NAME_SIZE)) |
54 |
pajs |
1.1 |
|
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user_stat_t *get_user_stats(){ |
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int num_users=0; |
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pajs |
1.5 |
static user_stat_t user_stats; |
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static int size_of_namelist=-1; |
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char *tmp; |
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ats |
1.12 |
#if defined(SOLARIS) || defined(LINUX) || defined(CYGWIN) |
62 |
pajs |
1.1 |
struct utmp *entry; |
63 |
pajs |
1.8 |
#endif |
64 |
ats |
1.10 |
#ifdef ALLBSD |
65 |
pajs |
1.8 |
struct utmp entry; |
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FILE *f; |
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#endif |
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pajs |
1.1 |
|
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/* First case call */ |
70 |
pajs |
1.5 |
if (size_of_namelist==-1){ |
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user_stats.name_list=malloc(START_VAL); |
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if(user_stats.name_list==NULL){ |
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pajs |
1.1 |
return NULL; |
74 |
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} |
75 |
pajs |
1.5 |
size_of_namelist=START_VAL; |
76 |
pajs |
1.1 |
} |
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pajs |
1.5 |
/* Essentially blank the list, or give it a inital starting string */ |
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strcpy(user_stats.name_list, ""); |
80 |
pajs |
1.8 |
|
81 |
ats |
1.12 |
#if defined(SOLARIS) || defined(LINUX) || defined(CYGWIN) |
82 |
pajs |
1.1 |
setutent(); |
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while((entry=getutent()) != NULL) { |
84 |
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if(entry->ut_type==USER_PROCESS) { |
85 |
pajs |
1.5 |
if((strlen(user_stats.name_list)+MAX_LOGIN_NAME_SIZE+2) > size_of_namelist){ |
86 |
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tmp=user_stats.name_list; |
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user_stats.name_list=realloc(user_stats.name_list, 1+(size_of_namelist*2)); |
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if(user_stats.name_list==NULL){ |
89 |
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user_stats.name_list=tmp; |
90 |
pajs |
1.1 |
return NULL; |
91 |
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} |
92 |
pajs |
1.5 |
size_of_namelist=1+(size_of_namelist*2); |
93 |
pajs |
1.1 |
} |
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pajs |
1.5 |
strncat(user_stats.name_list, entry->ut_user, MAX_LOGIN_NAME_SIZE); |
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strcat(user_stats.name_list, " "); |
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pajs |
1.1 |
num_users++; |
98 |
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} |
99 |
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} |
100 |
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endutent(); |
101 |
pajs |
1.8 |
#endif |
102 |
ats |
1.10 |
#ifdef ALLBSD |
103 |
pajs |
1.8 |
if ((f=fopen(_PATH_UTMP, "r")) == NULL){ |
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return NULL; |
105 |
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} |
106 |
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while((fread(&entry, sizeof(entry),1,f)) != 0){ |
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if (entry.ut_name[0] == '\0') continue; |
108 |
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if((strlen(user_stats.name_list)+MAX_LOGIN_NAME_SIZE+2) > size_of_namelist){ |
109 |
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tmp=user_stats.name_list; |
110 |
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user_stats.name_list=realloc(user_stats.name_list, 1+(size_of_namelist*2)); |
111 |
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if(user_stats.name_list==NULL){ |
112 |
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user_stats.name_list=tmp; |
113 |
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return NULL; |
114 |
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} |
115 |
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size_of_namelist=1+(size_of_namelist*2); |
116 |
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117 |
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} |
118 |
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strncat(user_stats.name_list, entry.ut_name, MAX_LOGIN_NAME_SIZE); |
119 |
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strcat(user_stats.name_list, " "); |
120 |
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num_users++; |
121 |
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} |
122 |
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fclose(f); |
123 |
pajs |
1.1 |
|
124 |
pajs |
1.8 |
#endif |
125 |
pajs |
1.5 |
/* We want to remove the last " " */ |
126 |
pajs |
1.7 |
if(num_users!=0){ |
127 |
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tmp=strrchr(user_stats.name_list, ' '); |
128 |
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if(tmp!=NULL){ |
129 |
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*tmp='\0'; |
130 |
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user_stats.num_entries=num_users; |
131 |
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} |
132 |
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} |
133 |
pajs |
1.5 |
|
134 |
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return &user_stats; |
135 |
pajs |
1.1 |
|
136 |
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} |