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root/i-scream/projects/libstatgrab/src/libstatgrab/user_stats.c

Comparing projects/libstatgrab/src/libstatgrab/user_stats.c (file contents):
Revision 1.10 by ats, Sun Oct 19 02:03:02 2003 UTC vs.
Revision 1.27 by tdb, Mon Nov 1 18:30:17 2004 UTC

#	Line 1 | Line 1
1	<	/*
2	<	* i-scream central monitoring system
1	>	/*
2	>	* i-scream libstatgrab
3		* http://www.i-scream.org
4	<	* Copyright (C) 2000-2003 i-scream
4	>	* Copyright (C) 2000-2004 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.
6	>	* This library is free software; you can redistribute it and/or
7	>	* modify it under the terms of the GNU Lesser General Public
8	>	* License as published by the Free Software Foundation; either
9	>	* version 2.1 of the License, or (at your option) any later version.
10		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library 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.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser 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.
16	>	* You should have received a copy of the GNU Lesser General Public
17	>	* License along with this library; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19	>	* 02111-1307 USA
20	>	*
21	>	* $Id$
22		*/
23
24		#ifdef HAVE_CONFIG_H
#	Line 26 | Line 29
29		#include <stdio.h>
30		#include <string.h>
31		#include "statgrab.h"
32	+	#include "vector.h"
33		#ifdef ALLBSD
34		#include <sys/types.h>
35		#endif
36	<	#include <utmp.h>
33	<	#ifdef NETBSD
36	>	#if defined(NETBSD) || defined(OPENBSD)
37		#include <limits.h>
35	–	#undef MAX_LOGIN_NAME_SIZE
36	–	#define MAX_LOGIN_NAME_SIZE _POSIX_LOGIN_NAME_MAX
38		#endif
39	<
40	<	#define START_VAL (5*(1+MAX_LOGIN_NAME_SIZE))
40	<
41	<	user_stat_t *get_user_stats(){
42	<	int num_users=0;
43	<
44	<	static user_stat_t user_stats;
45	<	static int size_of_namelist=-1;
46	<	char *tmp;
47	<	#if defined(SOLARIS) || defined(LINUX)
48	<	struct utmp *entry;
39	>	#ifdef OPENBSD
40	>	#include <sys/param.h>
41		#endif
42	+	#include <utmp.h>
43	+	#ifdef CYGWIN
44	+	#include <sys/unistd.h>
45	+	#endif
46	+	#ifdef HPUX
47	+	#include <utmp.h>
48	+	#endif
49	+
50	+	sg_user_stats *sg_get_user_stats(){
51	+	int num_users = 0, pos = 0, new_pos;
52	+	VECTOR_DECLARE_STATIC(name_list, char, 128, NULL, NULL);
53	+	static sg_user_stats user_stats;
54		#ifdef ALLBSD
55		struct utmp entry;
56	<	FILE *f;
53	<	#endif
56	>	FILE *f;
57
58	<	/* First case call */
59	<	if (size_of_namelist==-1){
60	<	user_stats.name_list=malloc(START_VAL);
61	<	if(user_stats.name_list==NULL){
58	>	if ((f=fopen(_PATH_UTMP, "r")) == NULL){
59	>	sg_set_error_with_errno(SG_ERROR_OPEN, _PATH_UTMP);
60	>	return NULL;
61	>	}
62	>	while((fread(&entry, sizeof(entry),1,f)) != 0){
63	>	if (entry.ut_name[0] == '\0') continue;
64	>
65	>	new_pos = pos + strlen(entry.ut_name) + 1;
66	>	if (VECTOR_RESIZE(name_list, new_pos) < 0) {
67		return NULL;
68		}
61	–	size_of_namelist=START_VAL;
62	–	}
69
70	<	/* Essentially blank the list, or give it a inital starting string */
71	<	strcpy(user_stats.name_list, "");
70	>	strcpy(name_list + pos, entry.ut_name);
71	>	name_list[new_pos - 1] = ' ';
72	>	pos = new_pos;
73	>	num_users++;
74	>	}
75	>	fclose(f);
76	>	#else
77	>	/* This works on everything else. */
78	>	struct utmp *entry;
79
67	–	#if defined(SOLARIS) || defined(LINUX)
80		setutent();
81		while((entry=getutent()) != NULL) {
82	<	if(entry->ut_type==USER_PROCESS) {
71	<	if((strlen(user_stats.name_list)+MAX_LOGIN_NAME_SIZE+2) > size_of_namelist){
72	<	tmp=user_stats.name_list;
73	<	user_stats.name_list=realloc(user_stats.name_list, 1+(size_of_namelist*2));
74	<	if(user_stats.name_list==NULL){
75	<	user_stats.name_list=tmp;
76	<	return NULL;
77	<	}
78	<	size_of_namelist=1+(size_of_namelist*2);
79	<	}
82	>	if (entry->ut_type != USER_PROCESS) continue;
83
84	<	strncat(user_stats.name_list, entry->ut_user, MAX_LOGIN_NAME_SIZE);
85	<	strcat(user_stats.name_list, " ");
86	<	num_users++;
84	>	new_pos = pos + strlen(entry->ut_user) + 1;
85	>	if (VECTOR_RESIZE(name_list, new_pos) < 0) {
86	>	return NULL;
87		}
88	+
89	+	strcpy(name_list + pos, entry->ut_user);
90	+	name_list[new_pos - 1] = ' ';
91	+	pos = new_pos;
92	+	num_users++;
93		}
94		endutent();
95		#endif
96	<	#ifdef ALLBSD
97	<	if ((f=fopen(_PATH_UTMP, "r")) == NULL){
96	>
97	>	/* Remove the extra space at the end, and append a \0. */
98	>	if (num_users != 0) {
99	>	pos--;
100	>	}
101	>	if (VECTOR_RESIZE(name_list, pos + 1) < 0) {
102		return NULL;
103		}
104	<	while((fread(&entry, sizeof(entry),1,f)) != 0){
93	<	if (entry.ut_name[0] == '\0') continue;
94	<	if((strlen(user_stats.name_list)+MAX_LOGIN_NAME_SIZE+2) > size_of_namelist){
95	<	tmp=user_stats.name_list;
96	<	user_stats.name_list=realloc(user_stats.name_list, 1+(size_of_namelist*2));
97	<	if(user_stats.name_list==NULL){
98	<	user_stats.name_list=tmp;
99	<	return NULL;
100	<	}
101	<	size_of_namelist=1+(size_of_namelist*2);
102	<
103	<	}
104	<	strncat(user_stats.name_list, entry.ut_name, MAX_LOGIN_NAME_SIZE);
105	<	strcat(user_stats.name_list, " ");
106	<	num_users++;
107	<	}
108	<	fclose(f);
104	>	name_list[pos] = '\0';
105
106	<	#endif
107	<	/* We want to remove the last " " */
112	<	if(num_users!=0){
113	<	tmp=strrchr(user_stats.name_list, ' ');
114	<	if(tmp!=NULL){
115	<	*tmp='\0';
116	<	user_stats.num_entries=num_users;
117	<	}
118	<	}
119	<
106	>	user_stats.num_entries = num_users;
107	>	user_stats.name_list = name_list;
108		return &user_stats;
121	–
109		}

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