modules/m_version.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  m_version.c: Shows ircd version information.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  *
  24  *  $Id: m_version.c 1887 2006-08-29 13:42:56Z jilles $
  25  */
  26
  27 #include <stdinc.h>
  28 #include "client.h"
  29 #include "ircd.h"
  30 #include "numeric.h"
  31 #include "s_conf.h"
  32 #include "s_serv.h"
  33 #include "supported.h"
  34 #include "send.h"
  35 #include "msg.h"
  36 #include "parse.h"
  37 #include "modules.h"
  38
  39 static char *confopts(struct Client *source_p);
  40
  41 static int m_version(struct Client *, struct Client *, int, const char **);
  42 static int mo_version(struct Client *, struct Client *, int, const char **);
  43
  44 struct Message version_msgtab = {
  45         "VERSION", 0, 0, 0, MFLG_SLOW,
  46         {mg_unreg, {m_version, 0}, {mo_version, 0}, {mo_version, 0}, mg_ignore, {mo_version, 0}}
  47 };
  48
  49 mapi_clist_av1 version_clist[] = { &version_msgtab, NULL };
  50 DECLARE_MODULE_AV1(version, NULL, NULL, version_clist, NULL, NULL, "$Revision: 1887 $");
  51
  52 /*
  53  * m_version - VERSION command handler
  54  *      parv[0] = sender prefix
  55  *      parv[1] = remote server
  56  */
  57 static int
  58 m_version(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  59 {
  60         static time_t last_used = 0L;
  61
  62         if(parc > 1)
  63         {
  64                 if((last_used + ConfigFileEntry.pace_wait) > rb_current_time())
  65                 {
  66                         /* safe enough to give this on a local connect only */
  67                         sendto_one(source_p, form_str(RPL_LOAD2HI),
  68                                    me.name, source_p->name, "VERSION");
  69                         return 0;
  70                 }
  71                 else
  72                         last_used = rb_current_time();
  73
  74                 if(hunt_server(client_p, source_p, ":%s VERSION :%s", 1, parc, parv) != HUNTED_ISME)
  75                         return 0;
  76         }
  77
  78         sendto_one_numeric(source_p, RPL_VERSION, form_str(RPL_VERSION),
  79                            ircd_version, serno,
  80                            me.name, confopts(source_p), TS_CURRENT,
  81                            ServerInfo.sid);
  82
  83         show_isupport(source_p);
  84
  85         return 0;
  86 }
  87
  88 /*
  89  * mo_version - VERSION command handler
  90  *      parv[0] = sender prefix
  91  *      parv[1] = remote server
  92  */
  93 static int
  94 mo_version(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  95 {
  96         if(hunt_server(client_p, source_p, ":%s VERSION :%s", 1, parc, parv) == HUNTED_ISME)
  97         {
  98                 sendto_one_numeric(source_p, RPL_VERSION, form_str(RPL_VERSION),
  99                                    ircd_version, serno,
 100                                    me.name, confopts(source_p), TS_CURRENT,
 101                                    ServerInfo.sid);
 102                 show_isupport(source_p);
 103         }
 104
 105         return 0;
 106 }
 107
 108 /* confopts()
 109  * input  - client pointer
 110  * output - ircd.conf option string
 111  * side effects - none
 112  */
 113 static char *
 114 confopts(struct Client *source_p)
 115 {
 116         static char result[15];
 117         char *p;
 118
 119         result[0] = '\0';
 120         p = result;
 121
 122         if(ConfigChannel.use_except)
 123                 *p++ = 'e';
 124
 125         /* might wanna hide this :P */
 126         if(ServerInfo.hub)
 127                 *p++ = 'H';
 128
 129         if(ConfigChannel.use_invex)
 130                 *p++ = 'I';
 131
 132         if(ConfigChannel.use_knock)
 133                 *p++ = 'K';
 134
 135         *p++ = 'M';
 136         *p++ = 'p';
 137
 138         if(opers_see_all_users || ConfigFileEntry.operspy_dont_care_user_info)
 139                 *p++ = 'S';
 140 #ifdef IGNORE_BOGUS_TS
 141         *p++ = 'T';
 142 #endif
 143
 144 #ifdef HAVE_LIBZ
 145         *p++ = 'Z';
 146 #endif
 147
 148 #ifdef RB_IPV6
 149         *p++ = '6';
 150 #endif
 151
 152         *p = '\0';
 153
 154         return result;
 155 }