include/modules.h

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  modules.h: A header for the modules functions.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2004 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: modules.h 6 2005-09-10 01:02:21Z nenolod $
  25  */
  26
  27 #ifndef INCLUDED_modules_h
  28 #define INCLUDED_modules_h
  29 #include "config.h"
  30 #include "setup.h"
  31 #include "parse.h"
  32
  33 #define MAPI_RATBOX 1
  34
  35 #if defined(HAVE_SHL_LOAD)
  36 #include <dl.h>
  37 #endif
  38 #if !defined(STATIC_MODULES) && defined(HAVE_DLFCN_H)
  39 #include <dlfcn.h>
  40 #endif
  41
  42 #include "msg.h"
  43 #include "hook.h"
  44
  45 struct module
  46 {
  47         char *name;
  48         const char *version;
  49         void *address;
  50         int core;
  51         int mapi_version;
  52         void * mapi_header; /* actually struct mapi_mheader_av<mapi_version>    */
  53 };
  54
  55 struct module_path
  56 {
  57         char path[MAXPATHLEN];
  58 };
  59
  60 #define MAPI_MAGIC_HDR  0x4D410000
  61
  62 #define MAPI_V1         (MAPI_MAGIC_HDR | 0x1)
  63
  64 #define MAPI_MAGIC(x)   ((x) & 0xffff0000)
  65 #define MAPI_VERSION(x) ((x) & 0x0000ffff)
  66
  67 typedef struct Message* mapi_clist_av1;
  68
  69 typedef struct
  70 {
  71         const char *    hapi_name;
  72         int *           hapi_id;
  73 } mapi_hlist_av1;
  74
  75 typedef struct
  76 {
  77         const char *    hapi_name;
  78         hookfn          fn;
  79 } mapi_hfn_list_av1;
  80
  81 struct mapi_mheader_av1
  82 {
  83         int               mapi_version;                         /* Module API version           */
  84         int             (*mapi_register)        (void);         /* Register function;
  85                                                                    ret -1 = failure (unload)    */
  86         void            (*mapi_unregister)      (void);         /* Unregister function.         */
  87         mapi_clist_av1  * mapi_command_list;                    /* List of commands to add.     */
  88         mapi_hlist_av1  * mapi_hook_list;                       /* List of hooks to add.        */
  89         mapi_hfn_list_av1 *mapi_hfn_list;                       /* List of hook_add_hook's to do */
  90         const char *      mapi_module_version;                  /* Module's version (freeform)  */
  91 };
  92
  93 #ifndef STATIC_MODULES
  94 # define DECLARE_MODULE_AV1(name,reg,unreg,cl,hl,hfnlist, v) \
  95         struct mapi_mheader_av1 _mheader = { MAPI_V1, reg, unreg, cl, hl, hfnlist, v}
  96 #else
  97 # define DECLARE_MODULE_AV1(name,reg,unreg,cl,hl,hfnlist, v) \
  98         struct mapi_mheader_av1 name ## _mheader = { MAPI_V1, reg, unreg, cl, hl, hfnlist, v}
  99 void load_static_modules(void);
 100 #endif
 101
 102 /* add a path */
 103 void mod_add_path(const char *path);
 104 void mod_clear_paths(void);
 105
 106 /* load a module */
 107 extern void load_module(char *path);
 108
 109 /* load all modules */
 110 extern void load_all_modules(int warn);
 111
 112 /* load core modules */
 113 extern void load_core_modules(int);
 114
 115 extern int unload_one_module(const char *, int);
 116 extern int load_one_module(const char *, int);
 117 extern int load_a_module(const char *, int, int);
 118 extern int findmodule_byname(const char *);
 119 extern void modules_init(void);
 120
 121 #endif /* INCLUDED_modules_h */