3 /* Uncomment this if you want to track memory leaks.
4 * This incurs some overhead, so don't use it unless you're debugging the code!
6 /* #define DEBUG_MEMORY_LEAKS */
9 * New format for a message in memory
11 #define CTDLMESSAGE_MAGIC 0x159d
13 int cm_magic; /* Self-check */
14 char cm_anon_type; /* Anonymous or author-visible */
15 char cm_format_type; /* Format type */
16 char *cm_fields[256]; /* Data fields */
17 unsigned int cm_flags; /* How to handle (NOT SAVED TO DISK) */
20 #define CM_SKIP_HOOKS 0x01 /* Don't run server-side handlers */
24 * Generic per-session variable or data structure storage
27 struct CtdlSessData *next;
33 * Static user data symbol types
36 SYM_DESIRED_SECTION, /* Used by the MIME parser */
37 SYM_MA_INFO, /* Handles multipart/alternative */
38 SYM_REPL, /* Used for replication checking */
44 * Here's the big one... the Citadel context structure.
46 * This structure keeps track of all information relating to a running
47 * session on the server. We keep one of these for each session thread.
49 * Note that the first element is "*next" so that it may be used without
50 * modification in a linked list.
53 struct CitContext *next; /* Link to next session in the list */
55 struct usersupp usersupp; /* Database record buffers */
56 struct quickroom quickroom;
58 int state; /* thread state (see CON_ values below) */
59 int kill_me; /* Set to nonzero to flag for termination */
61 char curr_user[32]; /* name of current user */
62 int logged_in; /* logged in */
63 int internal_pgm; /* authenticated as internal program */
64 char temp[32]; /* temp file name */
65 int nologin; /* not allowed to log in */
67 char net_node[32]; /* Is the client another Citadel server? */
69 int cs_pid; /* session ID */
70 time_t cs_lastupdt; /* time of last update */
71 time_t lastcmd; /* time of last command executed */
72 time_t lastidle; /* For computing idle time */
73 char lastcmdname[5]; /* name of last command executed */
74 unsigned cs_flags; /* miscellaneous flags */
75 void (*h_command_function) (void) ; /* service command function */
77 /* feeping creaturisms... */
78 int cs_clientdev; /* client developer ID */
79 int cs_clienttyp; /* client type code */
80 int cs_clientver; /* client version number */
81 char cs_clientname[32]; /* name of client software */
82 char cs_host[26]; /* host logged in from */
84 FILE *download_fp; /* Fields relating to file transfer */
88 char upl_comment[256];
89 char upl_filedir[256];
90 char chat_room[20]; /* The chat room */
94 struct ExpressMessage *FirstExpressMessage;
96 char fake_username[32]; /* Fake username <bc> */
97 char fake_postname[32]; /* Fake postname <bc> */
98 char fake_hostname[25]; /* Name of the fake hostname <bc> */
99 char fake_roomname[ROOMNAMELEN]; /* Name of the fake room <bc> */
101 int FloorBeingSearched; /* This is used by cmd_lrms() etc. */
103 struct CtdlSessData *FirstSessData; /* Allocated session data */
104 char buffer1[256]; /* General-purpose workspace */
105 char buffer2[256]; /* General-purpose workspace */
108 typedef struct CitContext t_context;
110 /* Values for CitContext.state */
112 CON_IDLE, /* This context is doing nothing */
113 CON_EXECUTING /* This context is bound to a thread */
117 #define CS_STEALTH 1 /* stealth mode */
118 #define CS_CHAT 2 /* chat mode */
119 #define CS_POSTING 4 /* Posting */
121 struct CitContext *MyContext(void);
122 #define CC ((struct CitContext *)MyContext())
124 extern struct CitContext *ContextList;
125 extern int ScheduledShutdown;
126 extern struct CitControl CitControl;
129 struct ExpressMessage {
130 struct ExpressMessage *next;
131 time_t timestamp; /* When this message was sent */
132 unsigned flags; /* Special instructions */
133 char sender[64]; /* Name of sending user */
134 char *text; /* Message text (if applicable) */
137 #define EM_BROADCAST 1 /* Broadcast message */
138 #define EM_GO_AWAY 2 /* Server requests client log off */
139 #define EM_CHAT 4 /* Server requests client enter chat */
142 struct ChatLine *next;
147 char chat_username[32];
151 * Various things we need to lock and unlock
182 * message transfer formats
185 MT_CITADEL, /* Citadel proprietary */
186 MT_RFC822, /* RFC822 */
187 MT_MIME, /* MIME-formatted message */
188 MT_DOWNLOAD /* Download a component */
192 * Message format types in the database
194 #define FMT_CITADEL 0 /* Citadel vari-format (proprietary) */
195 #define FMT_FIXED 1 /* Fixed format (proprietary) */
196 #define FMT_RFC822 4 /* Standard (headers are in M field) */
200 * Citadel DataBases (define one for each cdb we need to open)
203 CDB_MSGMAIN, /* message base */
204 CDB_USERSUPP, /* user file */
205 CDB_QUICKROOM, /* room index */
206 CDB_FLOORTAB, /* floor index */
207 CDB_MSGLISTS, /* room message lists */
208 CDB_VISIT, /* user/room relationships */
209 MAXCDB /* total number of CDB's defined */
219 /* Structures and declarations for function hooks of various types */
221 struct LogFunctionHook {
222 struct LogFunctionHook *next;
224 void (*h_function_pointer) (char *);
226 extern struct LogFunctionHook *LogHookTable;
228 struct CleanupFunctionHook {
229 struct CleanupFunctionHook *next;
230 void (*h_function_pointer) (void);
232 extern struct CleanupFunctionHook *CleanupHookTable;
238 * SessionFunctionHook extensions are used for any type of hook for which
239 * the context in which it's being called (which is determined by the event
240 * type) will make it obvious for the hook function to know where to look for
243 struct SessionFunctionHook {
244 struct SessionFunctionHook *next;
245 void (*h_function_pointer) (void);
248 extern struct SessionFunctionHook *SessionHookTable;
251 * Event types can't be enum'ed, because they must remain consistent between
252 * builds (to allow for binary modules built somewhere else)
254 #define EVT_STOP 0 /* Session is terminating */
255 #define EVT_START 1 /* Session is starting */
256 #define EVT_LOGIN 2 /* A user is logging in */
257 #define EVT_NEWROOM 3 /* Changing rooms */
258 #define EVT_LOGOUT 4 /* A user is logging out */
259 #define EVT_SETPASS 5 /* Setting or changing password */
260 #define EVT_CMD 6 /* Called after each server command */
261 #define EVT_RWHO 7 /* An RWHO command is being executed */
268 * UserFunctionHook extensions are used for any type of hook which implements
269 * an operation on a user or username (potentially) other than the one
270 * operating the current session.
272 struct UserFunctionHook {
273 struct UserFunctionHook *next;
274 void (*h_function_pointer) (char *username, long usernum);
277 extern struct UserFunctionHook *UserHookTable;
279 #define EVT_PURGEUSER 100 /* Deleting a user */
280 #define EVT_OUTPUTMSG 101 /* Outputting a message */
284 * MessageFunctionHook extensions are used for hooks which implement handlers
285 * for various types of message operations (save, read, etc.)
287 struct MessageFunctionHook {
288 struct MessageFunctionHook *next;
289 int (*h_function_pointer) (struct CtdlMessage *msg);
292 extern struct MessageFunctionHook *MessageHookTable;
294 #define EVT_BEFOREREAD 200
295 #define EVT_BEFORESAVE 201
296 #define EVT_AFTERSAVE 202
300 * ExpressMessageFunctionHook extensions are used for hooks which implement
301 * the sending of an express message through various channels. Any function
302 * registered should return the number of recipients to whom the message was
303 * successfully transmitted.
305 struct XmsgFunctionHook {
306 struct XmsgFunctionHook *next;
307 int (*h_function_pointer) (char *, char *, char *);
310 extern struct XmsgFunctionHook *XmsgHookTable;
312 /* Priority levels for paging functions (lower is better) */
314 XMSG_PRI_LOCAL, /* Other users on -this- server */
315 XMSG_PRI_REMOTE, /* Other users on a Citadel network (future) */
316 XMSG_PRI_FOREIGN, /* Contacts on foreign instant message hosts */
323 * ServiceFunctionHook extensions are used for hooks which implement various
324 * non-Citadel services (on TCP protocols) directly in the Citadel server.
326 struct ServiceFunctionHook {
327 struct ServiceFunctionHook *next;
329 void (*h_greeting_function) (void) ;
330 void (*h_command_function) (void) ;
333 extern struct ServiceFunctionHook *ServiceHookTable;
337 /* Defines the relationship of a user to a particular room */
343 unsigned int v_flags;
346 #define V_FORGET 1 /* User has zapped this room */
347 #define V_LOCKOUT 2 /* User is locked out of this room */
348 #define V_ACCESS 4 /* Access is granted to this room */
351 #define UA_GOTOALLOWED 4
352 #define UA_HASNEWMSGS 8
356 /* Supplementary data for a message on disk
357 * (These are kept separately from the message itself because they are
358 * fields whose values may change at some point after the message is saved.)
361 long smi_msgnum; /* Message number in *local* message base */
362 int smi_refcount; /* Number of rooms which point to this msg */
363 char smi_content_type[64];
364 /* more stuff will be added to this record in the future */
369 /* Built-in debuggable stuff for checking for memory leaks */
370 #ifdef DEBUG_MEMORY_LEAKS
372 #define mallok(howbig) tracked_malloc(howbig, __FILE__, __LINE__)
373 #define phree(whichptr) tracked_free(whichptr)
374 #define reallok(whichptr,howbig) tracked_realloc(whichptr,howbig)
375 #define strdoop(orig) tracked_strdup(orig, __FILE__, __LINE__)
377 void *tracked_malloc(size_t, char *, int);
378 void tracked_free(void *);
379 void *tracked_realloc(void *, size_t);
380 void dump_tracked(void);
381 char *tracked_strdup(const char *, char *, int);
384 struct TheHeap *next;
390 extern struct TheHeap *heap;
394 #define mallok(howbig) malloc(howbig)
395 #define phree(whichptr) free(whichptr)
396 #define reallok(whichptr,howbig) realloc(whichptr,howbig)
397 #define strdoop(orig) strdup(orig)
404 * Serialization routines use this struct to return a pointer and a length
412 /* Preferred field order */
413 /* ********* Important fields */
414 /* **************** Semi-important fields */
415 /* * Message text (MUST be last) */
416 #define FORDER "IPTAONHRDBCEFGJKLQSUVWXYZM"