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/* |
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* i-scream libstatgrab |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2004 i-scream |
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* |
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* 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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* |
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* This library 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 GNU |
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* Lesser General Public License for more details. |
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* |
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* 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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* |
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* $Id: user_stats.c,v 1.26 2004/07/18 21:30:12 ats Exp $ |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include "statgrab.h" |
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#include "vector.h" |
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#ifdef ALLBSD |
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#include <sys/types.h> |
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#endif |
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#if defined(NETBSD) || defined(OPENBSD) |
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#include <limits.h> |
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#endif |
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#ifdef OPENBSD |
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#include <sys/param.h> |
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#endif |
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#include <utmp.h> |
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#ifdef CYGWIN |
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#include <sys/unistd.h> |
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#endif |
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#ifdef HPUX |
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#include <utmp.h> |
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#endif |
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|
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sg_user_stats *sg_get_user_stats(){ |
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int num_users = 0, pos = 0, new_pos; |
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VECTOR_DECLARE_STATIC(name_list, char, 128, NULL, NULL); |
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static sg_user_stats user_stats; |
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#ifdef ALLBSD |
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struct utmp entry; |
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FILE *f; |
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|
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if ((f=fopen(_PATH_UTMP, "r")) == NULL){ |
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sg_set_error_with_errno(SG_ERROR_OPEN, _PATH_UTMP); |
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return NULL; |
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} |
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while((fread(&entry, sizeof(entry),1,f)) != 0){ |
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if (entry.ut_name[0] == '\0') continue; |
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|
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new_pos = pos + strlen(entry.ut_name) + 1; |
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if (VECTOR_RESIZE(name_list, new_pos) < 0) { |
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return NULL; |
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} |
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|
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strcpy(name_list + pos, entry.ut_name); |
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name_list[new_pos - 1] = ' '; |
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pos = new_pos; |
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num_users++; |
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} |
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fclose(f); |
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#else |
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/* This works on everything else. */ |
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struct utmp *entry; |
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|
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setutent(); |
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while((entry=getutent()) != NULL) { |
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if (entry->ut_type != USER_PROCESS) continue; |
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|
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new_pos = pos + strlen(entry->ut_user) + 1; |
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if (VECTOR_RESIZE(name_list, new_pos) < 0) { |
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return NULL; |
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} |
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|
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strcpy(name_list + pos, entry->ut_user); |
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name_list[new_pos - 1] = ' '; |
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pos = new_pos; |
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num_users++; |
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} |
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endutent(); |
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#endif |
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|
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/* Remove the extra space at the end, and append a \0. */ |
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if (num_users != 0) { |
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pos--; |
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} |
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if (VECTOR_RESIZE(name_list, pos + 1) < 0) { |
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return NULL; |
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} |
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name_list[pos] = '\0'; |
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|
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user_stats.num_entries = num_users; |
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user_stats.name_list = name_list; |
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return &user_stats; |
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} |
