source: owl.h @ c3a47c9

release-1.6release-1.7release-1.8release-1.9
Last change on this file since c3a47c9 was c3a47c9, checked in by Anders Kaseorg <andersk@mit.edu>, 11 years ago
Move cachedmsgid from owl_filter to owl_view. This fixes a use-after-free bug: owl_function_create_filter sets inuse=1, removes the current filter (hence freeing it), then calls owl_function_change_currentview_filter → owl_view_save_curmsgid → owl_filter_set_cachedmsgid, which writes to the filter that was just freed. This means that you can no longer keep two independent positions in two different filters by repeatedly switching between filter1 → empty → filter2 → empty → filter1. But I doubt anyone even knew that was possible before. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Reviewed-by: Nelson Elhage <nelhage@mit.edu>
  • Property mode set to 100644
File size: 17.6 KB
Line 
1/*  Copyright (c) 2006-2009 The BarnOwl Developers. All rights reserved.
2 *  Copyright (c) 2004 James Kretchmar. All rights reserved.
3 *
4 *  This program is free software. You can redistribute it and/or
5 *  modify under the terms of the Sleepycat License. See the COPYING
6 *  file included with the distribution for more information.
7 */
8
9#ifndef INC_OWL_H
10#define INC_OWL_H
11
12#ifndef OWL_PERL
13#include <curses.h>
14#endif
15#include <sys/param.h>
16#include <EXTERN.h>
17#include <netdb.h>
18#include <regex.h>
19#include <time.h>
20#include <signal.h>
21#include <termios.h>
22#include "libfaim/aim.h"
23#include <wchar.h>
24#include "config.h"
25#include "glib.h"
26#ifdef HAVE_LIBZEPHYR
27#include <zephyr/zephyr.h>
28#endif
29#ifdef HAVE_COM_ERR_H
30#include <com_err.h>
31#endif
32
33/* Perl and curses don't play nice. */
34#ifdef OWL_PERL
35typedef void WINDOW;
36/* logout is defined in FreeBSD. */
37#define logout logout_
38/* aim.h defines bool */
39#define HAS_BOOL
40#include <perl.h>
41#include "owl_perl.h"
42#undef logout
43#include "XSUB.h"
44#else
45typedef void SV;
46typedef void AV;
47typedef void HV;
48#endif
49
50#ifdef  GIT_VERSION
51#define stringify(x)       __stringify(x)
52#define __stringify(x)     #x
53#define OWL_VERSION_STRING stringify(GIT_VERSION)
54#else
55#define OWL_VERSION_STRING PACKAGE_VERSION
56#endif
57
58/* Feature that is being tested to redirect stderr through a pipe.
59 * There may still be some portability problems with this. */
60#define OWL_STDERR_REDIR 1
61
62#define OWL_DEBUG 0
63#define OWL_DEBUG_FILE "/var/tmp/owldebug"
64
65#define OWL_CONFIG_DIR "/.owl"             /* this is relative to the user's home directory */
66#define OWL_STARTUP_FILE "/.owl/startup"   /* this is relative to the user's home directory */
67
68#define OWL_FMTEXT_ATTR_NONE      0
69#define OWL_FMTEXT_ATTR_BOLD      1
70#define OWL_FMTEXT_ATTR_REVERSE   2
71#define OWL_FMTEXT_ATTR_UNDERLINE 4
72
73#define OWL_FMTEXT_UC_BASE 0x100000 /* Unicode Plane 16 - Supplementary Private Use Area-B*/
74#define OWL_FMTEXT_UC_ATTR ( OWL_FMTEXT_UC_BASE | 0x800 )
75#define OWL_FMTEXT_UC_ATTR_MASK 0x7
76#define OWL_FMTEXT_UC_COLOR_BASE ( OWL_FMTEXT_UC_BASE | 0x400 )
77#define OWL_FMTEXT_UC_FGCOLOR OWL_FMTEXT_UC_COLOR_BASE
78#define OWL_FMTEXT_UC_BGCOLOR ( OWL_FMTEXT_UC_COLOR_BASE | 0x200 )
79#define OWL_FMTEXT_UC_DEFAULT_COLOR 0x100
80#define OWL_FMTEXT_UC_FGDEFAULT ( OWL_FMTEXT_UC_FGCOLOR | OWL_FMTEXT_UC_DEFAULT_COLOR )
81#define OWL_FMTEXT_UC_BGDEFAULT ( OWL_FMTEXT_UC_BGCOLOR | OWL_FMTEXT_UC_DEFAULT_COLOR )
82#define OWL_FMTEXT_UC_COLOR_MASK 0xFF
83#define OWL_FMTEXT_UC_ALLCOLOR_MASK ( OWL_FMTEXT_UC_COLOR_MASK | OWL_FMTEXT_UC_DEFAULT_COLOR | 0x200)
84#define OWL_FMTEXT_UC_STARTBYTE_UTF8 '\xf4'
85
86#define OWL_FMTEXT_UTF8_ATTR_NONE "\xf4\x80\xa0\x80"
87#define OWL_FMTEXT_UTF8_FGDEFAULT "\xf4\x80\x94\x80"
88#define OWL_FMTEXT_UTF8_BGDEFAULT "\xf4\x80\x9C\x80"
89
90#define OWL_COLOR_BLACK     0
91#define OWL_COLOR_RED       1
92#define OWL_COLOR_GREEN     2
93#define OWL_COLOR_YELLOW    3
94#define OWL_COLOR_BLUE      4
95#define OWL_COLOR_MAGENTA   5
96#define OWL_COLOR_CYAN      6
97#define OWL_COLOR_WHITE     7
98#define OWL_COLOR_DEFAULT   -1
99#define OWL_COLOR_INVALID   -2
100
101#define OWL_EDITWIN_STYLE_MULTILINE 0
102#define OWL_EDITWIN_STYLE_ONELINE   1
103
104#define OWL_PROTOCOL_ZEPHYR         0
105#define OWL_PROTOCOL_AIM            1
106#define OWL_PROTOCOL_JABBER         2
107#define OWL_PROTOCOL_ICQ            3
108#define OWL_PROTOCOL_YAHOO          4
109#define OWL_PROTOCOL_MSN            5
110
111#define OWL_MESSAGE_DIRECTION_NONE  0
112#define OWL_MESSAGE_DIRECTION_IN    1
113#define OWL_MESSAGE_DIRECTION_OUT   2
114
115#define OWL_IO_READ   1
116#define OWL_IO_WRITE  2
117#define OWL_IO_EXCEPT 4
118
119#define OWL_DIRECTION_NONE      0
120#define OWL_DIRECTION_DOWNWARDS 1
121#define OWL_DIRECTION_UPWARDS   2
122
123#define OWL_LOGGING_DIRECTION_BOTH 0
124#define OWL_LOGGING_DIRECTION_IN   1
125#define OWL_LOGGING_DIRECTION_OUT  2
126
127#define OWL_SCROLLMODE_NORMAL      0
128#define OWL_SCROLLMODE_TOP         1
129#define OWL_SCROLLMODE_NEARTOP     2
130#define OWL_SCROLLMODE_CENTER      3
131#define OWL_SCROLLMODE_PAGED       4
132#define OWL_SCROLLMODE_PAGEDCENTER 5
133
134#define OWL_TAB               3  /* This *HAS* to be the size of TABSTR below */
135#define OWL_TABSTR        "   "
136#define OWL_MSGTAB            7
137#define OWL_TYPWIN_SIZE       8
138#define OWL_HISTORYSIZE       50
139
140/* Indicate current state, as well as what is allowed */
141#define OWL_CTX_ANY          0xffff
142/* Only one of these may be active at a time... */
143#define OWL_CTX_MODE_BITS    0x000f
144#define OWL_CTX_STARTUP      0x0001
145#define OWL_CTX_READCONFIG   0x0002
146#define OWL_CTX_INTERACTIVE  0x0004
147/* Only one of these may be active at a time... */
148#define OWL_CTX_ACTIVE_BITS  0xfff0
149#define OWL_CTX_POPWIN       0x00f0
150#define OWL_CTX_POPLESS      0x0010
151#define OWL_CTX_RECWIN       0x0f00
152#define OWL_CTX_RECV         0x0100
153#define OWL_CTX_TYPWIN       0xf000
154#define OWL_CTX_EDIT         0x7000
155#define OWL_CTX_EDITLINE     0x1000
156#define OWL_CTX_EDITMULTI    0x2000
157#define OWL_CTX_EDITRESPONSE 0x4000
158
159#define OWL_USERCLUE_NONE       0
160#define OWL_USERCLUE_CLASSES    1
161#define OWL_USERCLUE_FOOBAR     2
162#define OWL_USERCLUE_BAZ        4
163
164#define OWL_WEBBROWSER_NONE     0
165#define OWL_WEBBROWSER_NETSCAPE 1
166#define OWL_WEBBROWSER_GALEON   2
167#define OWL_WEBBROWSER_OPERA    3
168
169#define OWL_VARIABLE_OTHER      0
170#define OWL_VARIABLE_INT        1
171#define OWL_VARIABLE_BOOL       2
172#define OWL_VARIABLE_STRING     3
173
174#define OWL_FILTER_MAX_DEPTH    300
175
176#define OWL_KEYMAP_MAXSTACK     20
177
178#define OWL_KEYBINDING_COMMAND  1   /* command string */
179#define OWL_KEYBINDING_FUNCTION 2   /* function taking no args */
180
181#define OWL_DEFAULT_ZAWAYMSG    "I'm sorry, but I am currently away from the terminal and am\nnot able to receive your message.\n"
182#define OWL_DEFAULT_AAWAYMSG    "I'm sorry, but I am currently away from the terminal and am\nnot able to receive your message.\n"
183
184#define OWL_CMD_ALIAS_SUMMARY_PREFIX "command alias to: "
185
186#define OWL_WEBZEPHYR_PRINCIPAL "daemon.webzephyr"
187#define OWL_WEBZEPHYR_CLASS     "webzephyr"
188#define OWL_WEBZEPHYR_OPCODE    "webzephyr"
189
190#define OWL_REGEX_QUOTECHARS    "+*.?[]^\\${}()"
191#define OWL_REGEX_QUOTEWITH     "\\"
192
193#if defined(HAVE_DES_STRING_TO_KEY) && defined(HAVE_DES_KEY_SCHED) && defined(HAVE_DES_ECB_ENCRYPT)
194#define OWL_ENABLE_ZCRYPT 1
195#endif
196
197#define OWL_META(key) ((key)|010000)
198/* OWL_CTRL is definied in kepress.c */
199
200#define LINE 2048
201
202#ifdef HAVE_LIBZEPHYR
203/* libzephyr doesn't use const, so we appease the type system with this kludge.
204 * This just casts const char * to char * in a way that doesn't yield a warning
205 * from gcc -Wcast-qual. */
206static inline char *zstr(const char *str)
207{
208  union { char *rw; const char *ro; } u;
209  u.ro = str;
210  return u.rw;
211}
212#endif
213
214/* Convert char *const * into const char *const *.  This conversion is safe,
215 * and implicit in C++ (conv.qual 4) but for some reason not in C. */
216static inline const char *const *strs(char *const *pstr)
217{
218  return (const char *const *)pstr;
219}
220
221typedef struct _owl_variable {
222  char *name;
223  int   type;  /* OWL_VARIABLE_* */
224  void *pval_default;  /* for types other and string */
225  int   ival_default;  /* for types int and bool     */
226  char *validsettings;          /* documentation of valid settings */
227  char *summary;                /* summary of usage */
228  char *description;            /* detailed description */
229  void *val;                    /* current value */
230  int  (*validate_fn)(const struct _owl_variable *v, const void *newval);
231                                /* returns 1 if newval is valid */
232  int  (*set_fn)(struct _owl_variable *v, const void *newval); 
233                                /* sets the variable to a value
234                                 * of the appropriate type.
235                                 * unless documented, this
236                                 * should make a copy.
237                                 * returns 0 on success. */
238  int  (*set_fromstring_fn)(struct _owl_variable *v, const char *newval);
239                                /* sets the variable to a value
240                                 * of the appropriate type.
241                                 * unless documented, this
242                                 * should make a copy.
243                                 * returns 0 on success. */
244  const void *(*get_fn)(const struct _owl_variable *v);
245                                /* returns a reference to the current value.
246                                 * WARNING:  this approach is hard to make
247                                 * thread-safe... */
248  int  (*get_tostring_fn)(const struct _owl_variable *v, 
249                          char *buf, int bufsize, const void *val); 
250                                /* converts val to a string
251                                 * and puts into buf */
252  void  (*free_fn)(struct _owl_variable *v);
253                                /* frees val as needed */
254} owl_variable;
255
256typedef struct _owl_input {
257  int ch;
258  gunichar uch;
259} owl_input;
260
261typedef struct _owl_fmtext {
262  int textlen;
263  int bufflen;
264  char *textbuff;
265  char default_attrs;
266  short default_fgcolor;
267  short default_bgcolor;
268} owl_fmtext;
269
270typedef struct _owl_list {
271  int size;
272  int avail;
273  void **list;
274} owl_list;
275
276typedef struct _owl_dict_el {
277  char *k;                      /* key   */
278  void *v;                      /* value */
279} owl_dict_el;
280
281typedef struct _owl_dict {
282  int size;
283  int avail;
284  owl_dict_el *els;             /* invariant: sorted by k */
285} owl_dict;
286typedef owl_dict owl_vardict;   /* dict of variables */
287typedef owl_dict owl_cmddict;   /* dict of commands */
288
289typedef struct _owl_context {
290  int   mode;
291  void *data;           /* determined by mode */
292  char *keymap;
293} owl_context;
294
295typedef struct _owl_cmd {       /* command */
296  char *name;
297
298  char *summary;                /* one line summary of command */
299  char *usage;                  /* usage synopsis */
300  char *description;            /* long description of command */
301
302  int validctx;                 /* bitmask of valid contexts */
303
304  /* we should probably have a type here that says which of
305   * the following is valid, and maybe make the below into a union... */
306
307  /* Only one of these may be non-NULL ... */
308
309  char *cmd_aliased_to;         /* what this command is aliased to... */
310 
311  /* These don't take any context */
312  char *(*cmd_args_fn)(int argc, const char *const *argv, const char *buff); 
313                                /* takes argv and the full command as buff.
314                                 * caller must free return value if !NULL */
315  void (*cmd_v_fn)(void);       /* takes no args */
316  void (*cmd_i_fn)(int i);      /* takes an int as an arg */
317
318  /* The following also take the active context if it's valid */
319  char *(*cmd_ctxargs_fn)(void *ctx, int argc, const char *const *argv, const char *buff); 
320                                /* takes argv and the full command as buff.
321                                 * caller must free return value if !NULL */
322  void (*cmd_ctxv_fn)(void *ctx);               /* takes no args */
323  void (*cmd_ctxi_fn)(void *ctx, int i);        /* takes an int as an arg */
324  SV *cmd_perl;                                /* Perl closure that takes a list of args */
325} owl_cmd;
326
327
328typedef struct _owl_zwrite {
329  char *zwriteline;
330  char *class;
331  char *inst;
332  char *realm;
333  char *opcode;
334  char *zsig;
335  char *message;
336  owl_list recips;
337  int cc;
338  int noping;
339} owl_zwrite;
340
341typedef struct _owl_pair {
342  const char *key;
343  char *value;
344} owl_pair;
345
346struct _owl_fmtext_cache;
347
348typedef struct _owl_message {
349  int id;
350  int direction;
351#ifdef HAVE_LIBZEPHYR
352  ZNotice_t notice;
353#endif
354  struct _owl_fmtext_cache * fmtext;
355  int delete;
356  const char *hostname;
357  owl_list attributes;            /* this is a list of pairs */
358  char *timestr;
359  time_t time;
360} owl_message;
361
362#define OWL_FMTEXT_CACHE_SIZE 1000
363/* We cache the saved fmtexts for the last bunch of messages we
364   rendered */
365typedef struct _owl_fmtext_cache {
366    owl_message * message;
367    owl_fmtext fmtext;
368} owl_fmtext_cache;
369
370typedef struct _owl_style {
371  char *name;
372  SV *perlobj;
373} owl_style;
374
375typedef struct _owl_mainwin {
376  int curtruncated;
377  int lasttruncated;
378  int lastdisplayed;
379} owl_mainwin;
380
381typedef struct _owl_viewwin {
382  owl_fmtext fmtext;
383  int textlines;
384  int topline;
385  int rightshift;
386  int winlines, wincols;
387  WINDOW *curswin;
388  void (*onclose_hook) (struct _owl_viewwin *vwin, void *data);
389  void *onclose_hook_data;
390} owl_viewwin;
391 
392typedef struct _owl_popwin {
393  WINDOW *borderwin;
394  WINDOW *popwin;
395  int lines;
396  int cols;
397  int active;
398  int needsfirstrefresh;
399} owl_popwin;
400
401typedef struct _owl_messagelist {
402  owl_list list;
403} owl_messagelist;
404
405typedef struct _owl_regex {
406  int negate;
407  char *string;
408  regex_t re;
409} owl_regex;
410
411typedef struct _owl_filterelement {
412  int (*match_message)(const struct _owl_filterelement *fe, const owl_message *m);
413  /* Append a string representation of the filterelement onto buf*/
414  void (*print_elt)(const struct _owl_filterelement *fe, GString *buf);
415  /* Operands for and,or,not*/
416  struct _owl_filterelement *left, *right;
417  /* For regex filters*/
418  owl_regex re;
419  /* Used by regexes, filter references, and perl */
420  char *field;
421} owl_filterelement;
422
423typedef struct _owl_filter {
424  char *name;
425  owl_filterelement * root;
426  int fgcolor;
427  int bgcolor;
428} owl_filter;
429
430typedef struct _owl_view {
431  char *name;
432  owl_filter *filter;
433  owl_messagelist ml;
434  const owl_style *style;
435  int cachedmsgid;
436} owl_view;
437
438typedef struct _owl_history {
439  owl_list hist;
440  int cur;
441  int touched;
442  int partial;
443  int repeats;
444} owl_history;
445
446typedef struct _owl_editwin owl_editwin;
447typedef struct _owl_editwin_excursion owl_editwin_excursion;
448
449typedef struct _owl_keybinding {
450  int  *keys;                   /* keypress stack */
451  int   len;                    /* length of stack */
452  int   type;                   /* command or function? */
453  char *desc;                   /* description (or "*user*") */
454  char *command;                /* command, if of type command */
455  void (*function_fn)(void);    /* function ptr, if of type function */
456} owl_keybinding;
457
458typedef struct _owl_keymap {
459  char     *name;               /* name of keymap */
460  char     *desc;               /* description */
461  owl_list  bindings;           /* key bindings */
462  const struct _owl_keymap *submap;     /* submap */
463  void (*default_fn)(owl_input j);      /* default action (takes a keypress) */
464  void (*prealways_fn)(owl_input  j);   /* always called before a keypress is received */
465  void (*postalways_fn)(owl_input  j);  /* always called after keypress is processed */
466} owl_keymap;
467
468typedef struct _owl_keyhandler {
469  owl_dict  keymaps;            /* dictionary of keymaps */
470  const owl_keymap *active;             /* currently active keymap */
471  int       in_esc;             /* escape pressed? */
472  int       kpstack[OWL_KEYMAP_MAXSTACK+1]; /* current stack of keypresses */
473  int       kpstackpos;         /* location in stack (-1 = none) */
474} owl_keyhandler;
475
476typedef struct _owl_buddy {
477  int proto;
478  char *name;
479  int isidle;
480  int idlesince;
481} owl_buddy;
482
483typedef struct _owl_buddylist {
484  owl_list buddies;
485} owl_buddylist;
486
487typedef struct _owl_zbuddylist {
488  owl_list zusers;
489} owl_zbuddylist;
490
491typedef struct _owl_timer {
492  time_t time;
493  int interval;
494  void (*callback)(struct _owl_timer *, void *);
495  void (*destroy)(struct _owl_timer *);
496  void *data;
497} owl_timer;
498
499typedef struct _owl_errqueue {
500  owl_list errlist;
501} owl_errqueue;
502
503typedef struct _owl_colorpair_mgr {
504  int next;
505  short **pairs;
506} owl_colorpair_mgr;
507
508typedef struct _owl_obarray {
509  owl_list strings;
510} owl_obarray;
511
512typedef struct _owl_io_dispatch {
513  int fd;                                     /* FD to watch for dispatch. */
514  int mode;
515  int needs_gc;
516  void (*callback)(const struct _owl_io_dispatch *, void *); /* C function to dispatch to. */
517  void (*destroy)(const struct _owl_io_dispatch *);  /* Destructor */
518  void *data;
519} owl_io_dispatch;
520
521typedef struct _owl_ps_action {
522  int needs_gc;
523  int (*callback)(struct _owl_ps_action *, void *);
524  void (*destroy)(struct _owl_ps_action *);
525  void *data;
526} owl_ps_action;
527
528typedef struct _owl_popexec {
529  int refcount;
530  owl_viewwin *vwin;
531  int winactive;
532  pid_t pid;                    /* or 0 if it has terminated */
533  const owl_io_dispatch *dispatch;
534} owl_popexec;
535
536typedef struct _owl_global {
537  owl_mainwin mw;
538  owl_popwin pw;
539  owl_history cmdhist;          /* command history */
540  owl_history msghist;          /* outgoing message history */
541  owl_keyhandler kh;
542  owl_dict filters;
543  GList *filterlist;
544  owl_list puntlist;
545  owl_vardict vars;
546  owl_cmddict cmds;
547  GList *context_stack;
548  owl_errqueue errqueue;
549  int lines, cols;
550  int curmsg, topmsg;
551  int markedmsgid;              /* for finding the marked message when it has moved. */
552  int curmsg_vert_offset;
553  owl_view current_view;
554  owl_messagelist msglist;
555  WINDOW *recwin, *sepwin, *msgwin, *typwin;
556  int needrefresh;
557  int rightshift;
558  int resizepending;
559  int recwinlines;
560  int typwinactive;
561  char *thishost;
562  char *homedir;
563  char *confdir;
564  char *startupfile;
565  int direction;
566  int zaway;
567  char *cur_zaway_msg;
568  int haveconfig;
569  int config_format;
570  void *buffercbdata;
571  owl_editwin *tw;
572  owl_viewwin vw;
573  void *perl;
574  int debug;
575  time_t starttime;
576  time_t lastinputtime;
577  char *startupargs;
578  int userclue;
579  int nextmsgid;
580  int hascolors;
581  int colorpairs;
582  owl_colorpair_mgr cpmgr;
583  pid_t newmsgproc_pid;
584  int malloced, freed;
585  owl_regex search_re;
586  aim_session_t aimsess;
587  aim_conn_t bosconn;
588  owl_timer aim_noop_timer;
589  owl_timer aim_ignorelogin_timer;
590  int aim_loggedin;         /* true if currently logged into AIM */
591  int aim_doprocessing;     /* true if we should process AIM events (like pending login) */
592  char *aim_screenname;     /* currently logged in AIM screen name */
593  char *aim_screenname_for_filters;     /* currently logged in AIM screen name */
594  owl_buddylist buddylist;  /* list of logged in AIM buddies */
595  owl_list messagequeue;    /* for queueing up aim and other messages */
596  owl_dict styledict;       /* global dictionary of available styles */
597  char *response;           /* response to the last question asked */
598  int havezephyr;
599  int haveaim;
600  int ignoreaimlogin;
601  int got_err_signal;       /* 1 if we got an unexpected signal */
602  siginfo_t err_signal_info;
603  owl_zbuddylist zbuddies;
604  owl_timer zephyr_buddycheck_timer;
605  struct termios startup_tio;
606  owl_obarray obarray;
607  owl_list io_dispatch_list;
608  owl_list psa_list;
609  GList *timerlist;
610  owl_timer *aim_nop_timer;
611  int load_initial_subs;
612  int interrupted;
613} owl_global;
614
615/* globals */
616extern owl_global g;
617
618#include "owl_prototypes.h"
619
620/* these are missing from the zephyr includes for some reason */
621#ifdef HAVE_LIBZEPHYR
622int ZGetSubscriptions(ZSubscription_t *, int *);
623int ZGetLocations(ZLocations_t *,int *);
624#endif
625
626#endif /* INC_OWL_H */
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