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
  25 #include <stdinc.h>
  26 #include "client.h"
  27 #include "ircd.h"
  28 #include "numeric.h"
  29 #include "s_conf.h"
  30 #include "s_serv.h"
  31 #include "supported.h"
  32 #include "send.h"
  33 #include "msg.h"
  34 #include "parse.h"
  35 #include "modules.h"
  36
  37 static char *confopts(struct Client *source_p);
  38
  39 static int m_version(struct Client *, struct Client *, int, const char **);
  40 static int mo_version(struct Client *, struct Client *, int, const char **);
  41
  42 struct Message version_msgtab = {
  43         "VERSION", 0, 0, 0, MFLG_SLOW,
  44         {mg_unreg, {m_version, 0}, {mo_version, 0}, {mo_version, 0}, mg_ignore, {mo_version, 0}}
  45 };
  46
  47 mapi_clist_av1 version_clist[] = { &version_msgtab, NULL };
  48 DECLARE_MODULE_AV1(version, NULL, NULL, version_clist, NULL, NULL, "$Revision: 97 $");
  49
  50 /*
  51  * m_version - VERSION command handler
  52  *      parv[0] = sender prefix
  53  *      parv[1] = remote server
  54  */
  55 static int
  56 m_version(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  57 {
  58         static time_t last_used = 0L;
  59
  60         if(parc > 1)
  61         {
  62                 if((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
  63                 {
  64                         /* safe enough to give this on a local connect only */
  65                         sendto_one(source_p, form_str(RPL_LOAD2HI),
  66                                    me.name, source_p->name, "VERSION");
  67                         return 0;
  68                 }
  69                 else
  70                         last_used = CurrentTime;
  71
  72                 if(hunt_server(client_p, source_p, ":%s VERSION :%s", 1, parc, parv) != HUNTED_ISME)
  73                         return 0;
  74         }
  75
  76         sendto_one_numeric(source_p, RPL_VERSION, form_str(RPL_VERSION),
  77                            ircd_version, serno,
  78                            me.name, confopts(source_p), TS_CURRENT,
  79                            ServerInfo.sid);
  80
  81         show_isupport(source_p);
  82
  83         return 0;
  84 }
  85
  86 /*
  87  * mo_version - VERSION command handler
  88  *      parv[0] = sender prefix
  89  *      parv[1] = remote server
  90  */
  91 static int
  92 mo_version(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  93 {
  94         if(hunt_server(client_p, source_p, ":%s VERSION :%s", 1, parc, parv) == HUNTED_ISME)
  95         {
  96                 sendto_one_numeric(source_p, RPL_VERSION, form_str(RPL_VERSION),
  97                                    ircd_version, serno,
  98                                    me.name, confopts(source_p), TS_CURRENT,
  99                                    ServerInfo.sid);
 100                 show_isupport(source_p);
 101         }
 102
 103         return 0;
 104 }
 105
 106 /* confopts()
 107  * input  - client pointer
 108  * output - ircd.conf option string
 109  * side effects - none
 110  */
 111 static char *
 112 confopts(struct Client *source_p)
 113 {
 114         static char result[15];
 115         char *p;
 116
 117         result[0] = '\0';
 118         p = result;
 119
 120         if(ConfigChannel.use_except)
 121                 *p++ = 'e';
 122
 123         /* might wanna hide this :P */
 124         if(ServerInfo.hub)
 125                 *p++ = 'H';
 126
 127         if(ConfigChannel.use_invex)
 128                 *p++ = 'I';
 129
 130         if(ConfigChannel.use_knock)
 131                 *p++ = 'K';
 132
 133         *p++ = 'M';
 134         *p++ = 'p';
 135         *p++ = 'S';
 136
 137 #ifdef IGNORE_BOGUS_TS
 138         *p++ = 'T';
 139 #endif
 140
 141 #ifdef HAVE_LIBZ
 142         *p++ = 'Z';
 143 #endif
 144
 145 #ifdef IPV6
 146         *p++ = '6';
 147 #endif
 148
 149         *p = '\0';
 150
 151         return result;
 152 }