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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 1.2 by tdb, Thu Feb 20 13:19:52 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
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
1	>	/*
2	>	* i-scream libstatgrab
3	>	* http://www.i-scream.org
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
25		#include "config.h"
26		#endif
27	<	#include "statgrab.h"
27	>
28		#include <stdlib.h>
29		#include <stdio.h>
30		#include <string.h>
31	<	#ifdef FREEBSD
31	>	#include "statgrab.h"
32	>	#include "vector.h"
33	>	#ifdef ALLBSD
34		#include <sys/types.h>
35		#endif
36	+	#if defined(NETBSD) || defined(OPENBSD)
37	+	#include <limits.h>
38	+	#endif
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	<	#define START_VAL 5
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;
57
58	<	user_stat_t *get_user_stats(){
59	<	int num_users=0;
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	<	static user_stat_t user_stat;
66	<	static int watermark=-1;
40	<	struct utmp *entry;
41	<
42	<	name *name_ptr;
43	<
44	<	/* First case call */
45	<	if (watermark==-1){
46	<	user_stat.name_list=malloc(START_VAL * sizeof *user_stat.name_list);
47	<	if(user_stat.name_list==NULL){
65	>	new_pos = pos + strlen(entry.ut_name) + 1;
66	>	if (VECTOR_RESIZE(name_list, new_pos) < 0) {
67		return NULL;
68		}
50	–	watermark=START_VAL;
51	–	}
69
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	+
80		setutent();
81		while((entry=getutent()) != NULL) {
82	<	if(entry->ut_type==USER_PROCESS) {
56	<	if(num_users>watermark-1){
57	<	name_ptr=user_stat.name_list;
58	<	if((user_stat.name_list=realloc(user_stat.name_list, (watermark*2* sizeof *user_stat.name_list)))==NULL){
59	<	user_stat.name_list=name_ptr;
60	<	return NULL;
61	<	}
62	<	watermark=watermark*2;
63	<	}
82	>	if (entry->ut_type != USER_PROCESS) continue;
83
84	<	strncpy(user_stat.name_list[num_users], entry->ut_user, MAX_LOGIN_NAME_SIZE);
85	<	/* NULL terminate just in case , the size of user_stat.name_list is MAX_LOGIN_NAME_SIZE+1 */
86	<
68	<	user_stat.name_list[num_users][MAX_LOGIN_NAME_SIZE]='\0';
69	<
70	<	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	<	user_stat.num_entries=num_users;
95	>	#endif
96
97	<	return &user_stat;
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	>	name_list[pos] = '\0';
105
106	+	user_stats.num_entries = num_users;
107	+	user_stats.name_list = name_list;
108	+	return &user_stats;
109		}

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