source: owl.c @ b38b0b2

barnowl_perlaimdebianrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since b38b0b2 was 89f5338, checked in by Alejandro R. Sedeño <asedeno@mit.edu>, 13 years ago
Moving owl_get_datadir to util.c so make test'' works again.
  • Property mode set to 100644
File size: 25.0 KB
Line 
1/*  Copyright (c) 2004 James Kretchmar. All rights reserved.
2 *
3 *  Redistribution and use in source and binary forms, with or without
4 *  modification, are permitted provided that the following conditions are
5 *  met:
6 * 
7 *    * Redistributions of source code must retain the above copyright
8 *      notice, this list of conditions and the following disclaimer.
9 * 
10 *    * Redistributions in binary form must reproduce the above copyright
11 *      notice, this list of conditions and the following disclaimer in
12 *      the documentation and/or other materials provided with the
13 *      distribution.
14 * 
15 *    * Redistributions in any form must be accompanied by information on
16 *      how to obtain complete source code for the Owl software and any
17 *      accompanying software that uses the Owl software. The source code
18 *      must either be included in the distribution or be available for no
19 *      more than the cost of distribution plus a nominal fee, and must be
20 *      freely redistributable under reasonable conditions. For an
21 *      executable file, complete source code means the source code for
22 *      all modules it contains. It does not include source code for
23 *      modules or files that typically accompany the major components of
24 *      the operating system on which the executable file runs.
25 * 
26 *
27 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
28 *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
29 *  WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
30 *  NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
31 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
34 *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
35 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
36 *  OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
37 *  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#include <stdio.h>
41#include <unistd.h>
42#include <stdlib.h>
43#include <string.h>
44#include <signal.h>
45#include <time.h>
46#include <sys/param.h>
47#include <sys/types.h>
48#include <termios.h>
49#include <sys/stat.h>
50#include "owl.h"
51
52#if OWL_STDERR_REDIR
53#ifdef HAVE_SYS_IOCTL_H
54#include <sys/ioctl.h>
55#endif
56#ifdef HAVE_SYS_FILIO_H
57#include <sys/filio.h>
58#endif
59int stderr_replace(void);
60#endif
61
62static const char fileIdent[] = "$Id$";
63
64owl_global g;
65
66int main(int argc, char **argv, char **env)
67{
68  WINDOW *recwin, *sepwin, *typwin, *msgwin;
69  owl_editwin *tw;
70  owl_popwin *pw;
71  int j, ret, initialsubs, debug, argcsave, followlast;
72  int newmsgs, nexttimediff;
73  struct sigaction sigact;
74  char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE];
75  char *confdir;
76  owl_filter *f;
77  owl_style *s;
78  time_t nexttime, now;
79  struct tm *today;
80  char *dir;
81  struct termios tio;
82  owl_message *m;
83#if OWL_STDERR_REDIR
84  int newstderr;
85#endif
86
87  argcsave=argc;
88  argvsave=argv;
89  configfile=NULL;
90  confdir = NULL;
91  tty=NULL;
92  debug=0;
93  initialsubs=1;
94  if (argc>0) {
95    argv++;
96    argc--;
97  }
98  while (argc>0) {
99    if (!strcmp(argv[0], "-n")) {
100      initialsubs=0;
101      argv++;
102      argc--;
103    } else if (!strcmp(argv[0], "-c")) {
104      if (argc<2) {
105        fprintf(stderr, "Too few arguments to -c\n");
106        usage();
107        exit(1);
108      }
109      configfile=argv[1];
110      argv+=2;
111      argc-=2;
112    } else if (!strcmp(argv[0], "-t")) {
113      if (argc<2) {
114        fprintf(stderr, "Too few arguments to -t\n");
115        usage();
116        exit(1);
117      }
118      tty=argv[1];
119      argv+=2;
120      argc-=2;
121    } else if (!strcmp(argv[0], "-s")){
122      if (argc<2) {
123        fprintf(stderr, "Too few arguments to -s\n");
124        usage();
125        exit(1);
126      }
127      confdir = argv[1];
128      argv+=2;
129      argc-=2;
130    } else if (!strcmp(argv[0], "-d")) {
131      debug=1;
132      argv++;
133      argc--;
134    } else if (!strcmp(argv[0], "-D")) {
135      debug=1;
136      unlink(OWL_DEBUG_FILE);
137      argv++;
138      argc--;
139    } else if (!strcmp(argv[0], "-v")) {
140      printf("This is barnowl version %s\n", OWL_VERSION_STRING);
141      exit(0);
142    } else {
143      fprintf(stderr, "Uknown argument\n");
144      usage();       
145      exit(1);
146    }
147  }
148
149  owl_function_debugmsg("startup: Finished parsing arguments");
150
151  /* signal handler */
152  /*sigact.sa_handler=sig_handler;*/
153  sigact.sa_sigaction=sig_handler;
154  sigemptyset(&sigact.sa_mask);
155  sigact.sa_flags=SA_SIGINFO;
156  sigaction(SIGWINCH, &sigact, NULL);
157  sigaction(SIGALRM, &sigact, NULL);
158  sigaction(SIGPIPE, &sigact, NULL);
159  sigaction(SIGTERM, &sigact, NULL);
160  sigaction(SIGHUP, &sigact, NULL);
161
162  /* save initial terminal settings */
163  tcgetattr(0, owl_global_get_startup_tio(&g));
164
165  /* turn ISTRIP off */
166  tcgetattr(0, &tio);
167  tio.c_iflag &= ~ISTRIP;
168  tcsetattr(0, TCSAFLUSH, &tio);
169
170  /* screen init */
171  if (!getenv("TERMINFO")) {
172    owl_function_debugmsg("startup: Not setting TERMINFO");
173  } else {
174    owl_function_debugmsg("startup: leaving TERMINFO as %s from envrionment", getenv("TERMINFO"));
175  }
176  initscr();
177  start_color();
178#ifdef HAVE_USE_DEFAULT_COLORS
179  use_default_colors();
180#endif
181  raw();
182  noecho();
183
184  /* define simple color pairs */
185  if (has_colors() && COLOR_PAIRS>=8) {
186    int bg = COLOR_BLACK;
187#ifdef HAVE_USE_DEFAULT_COLORS
188    bg = -1;
189#endif
190    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   bg);
191    init_pair(OWL_COLOR_RED,     COLOR_RED,     bg);
192    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   bg);
193    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  bg);
194    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    bg);
195    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, bg);
196    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    bg);
197    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   bg);
198  }
199
200  /* owl global init */
201  owl_global_init(&g);
202  if (debug) owl_global_set_debug_on(&g);
203  if (confdir) owl_global_set_confdir(&g, confdir);
204  owl_function_debugmsg("startup: first available debugging message");
205  owl_global_set_startupargs(&g, argcsave, argvsave);
206  owl_global_set_haveaim(&g);
207
208#ifdef HAVE_LIBZEPHYR
209  /* zephyr init */
210  ret=owl_zephyr_initialize();
211  if (!ret)
212      owl_global_set_havezephyr(&g);
213#endif
214
215#if OWL_STDERR_REDIR
216  /* Do this only after we've started curses up... */
217  owl_function_debugmsg("startup: doing stderr redirection");
218  newstderr = stderr_replace();
219  owl_muxevents_add(owl_global_get_muxevents(&g), newstderr, OWL_MUX_READ,
220                    stderr_redirect_handler, NULL);
221#endif   
222
223  /* create the owl directory, in case it does not exist */
224  owl_function_debugmsg("startup: creating owl directory, if not present");
225  dir=owl_global_get_confdir(&g);
226  mkdir(dir, S_IRWXU);
227
228  /* set the tty, either from the command line, or by figuring it out */
229  owl_function_debugmsg("startup: setting tty name");
230  if (tty) {
231    owl_global_set_tty(&g, tty);
232  } else {
233    owl_global_set_tty(&g, owl_util_get_default_tty());
234  }
235
236  /* Initialize perl */
237  owl_function_debugmsg("startup: processing config file");
238  owl_context_set_readconfig(owl_global_get_context(&g));
239  perlerr=owl_perlconfig_initperl(configfile);
240  if (perlerr) {
241    endwin();
242    owl_function_error("Internal perl error: %s\n", perlerr);
243    fprintf(stderr, "Internal perl error: %s\n", perlerr);
244    fflush(stderr);
245    printf("Internal perl error: %s\n", perlerr);
246    fflush(stdout);
247    exit(1);
248  }
249
250  /* setup the built-in styles */
251  owl_function_debugmsg("startup: creating built-in styles");
252
253  s=owl_malloc(sizeof(owl_style));
254  owl_style_create_internal(s, "basic", &owl_stylefunc_basic, "Basic message formatting.");
255  owl_global_add_style(&g, s);
256#if 0
257  s=owl_malloc(sizeof(owl_style));
258  owl_style_create_internal(s, "vt", &owl_stylefunc_vt, "VT message formatting.");
259  owl_global_add_style(&g, s);
260#endif
261  s=owl_malloc(sizeof(owl_style));
262  owl_style_create_internal(s, "oneline", &owl_stylefunc_oneline, "Formats for one-line-per-message");
263  owl_global_add_style(&g, s);
264
265  /* setup the default filters */
266  /* the personal filter will need to change again when AIM chat's are
267   *  included.  Also, there should be an %aimme% */
268  owl_function_debugmsg("startup: creating default filters");
269  f=owl_malloc(sizeof(owl_filter));
270  owl_filter_init_fromstring(f, "personal", "isprivate ^true$ and ( not type ^zephyr$"
271                             " or ( class ^message and"
272                             " ( instance ^personal$ or instance ^urgent$ ) ) )");
273  owl_list_append_element(owl_global_get_filterlist(&g), f);
274
275  f=owl_malloc(sizeof(owl_filter));
276  owl_filter_init_fromstring(f, "wordwrap", "not ( type ^admin$ or type ^zephyr$ ) ");
277  owl_list_append_element(owl_global_get_filterlist(&g), f);
278
279  f=owl_malloc(sizeof(owl_filter));
280  owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )");
281  owl_list_append_element(owl_global_get_filterlist(&g), f);
282
283  f=owl_malloc(sizeof(owl_filter));
284  owl_filter_init_fromstring(f, "ping", "opcode ^ping$");
285  owl_list_append_element(owl_global_get_filterlist(&g), f);
286
287  f=owl_malloc(sizeof(owl_filter));
288  owl_filter_init_fromstring(f, "auto", "opcode ^auto$");
289  owl_list_append_element(owl_global_get_filterlist(&g), f);
290
291  f=owl_malloc(sizeof(owl_filter));
292  owl_filter_init_fromstring(f, "login", "not login ^none$");
293  owl_list_append_element(owl_global_get_filterlist(&g), f);
294
295  f=owl_malloc(sizeof(owl_filter));
296  owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$");
297  owl_list_append_element(owl_global_get_filterlist(&g), f);
298
299  f=owl_malloc(sizeof(owl_filter));
300  owl_filter_init_fromstring(f, "out", "direction ^out$");
301  owl_list_append_element(owl_global_get_filterlist(&g), f);
302
303  f=owl_malloc(sizeof(owl_filter));
304  owl_filter_init_fromstring(f, "aim", "type ^aim$");
305  owl_list_append_element(owl_global_get_filterlist(&g), f);
306
307  f=owl_malloc(sizeof(owl_filter));
308  owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$");
309  owl_list_append_element(owl_global_get_filterlist(&g), f);
310
311  f=owl_malloc(sizeof(owl_filter));
312  owl_filter_init_fromstring(f, "none", "false");
313  owl_list_append_element(owl_global_get_filterlist(&g), f);
314
315  f=owl_malloc(sizeof(owl_filter));
316  owl_filter_init_fromstring(f, "all", "true");
317  owl_list_append_element(owl_global_get_filterlist(&g), f);
318
319  /* set the current view */
320  owl_function_debugmsg("startup: setting the current view");
321  owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default"));
322
323  /* AIM init */
324  owl_function_debugmsg("startup: doing AIM initialization");
325  owl_aim_init();
326
327  /* execute the startup function in the configfile */
328  owl_function_debugmsg("startup: executing perl startup, if applicable");
329  perlout = owl_perlconfig_execute("BarnOwl::Hooks::_startup();");
330  if (perlout) owl_free(perlout);
331
332  /* hold on to the window names for convenience */
333  msgwin=owl_global_get_curs_msgwin(&g);
334  recwin=owl_global_get_curs_recwin(&g);
335  sepwin=owl_global_get_curs_sepwin(&g);
336  typwin=owl_global_get_curs_typwin(&g);
337  tw=owl_global_get_typwin(&g);
338
339  /* welcome message */
340  owl_function_debugmsg("startup: creating splash message");
341  strcpy(startupmsg, "-----------------------------------------------------------------------\n");
342  sprintf(buff,      "Welcome to barnowl version %s.  Press 'h' for on-line help.            \n", OWL_VERSION_STRING);
343  strcat(startupmsg, buff);
344  strcat(startupmsg, "                                                                       \n");
345  strcat(startupmsg, "This is a development build of barnowl. If you are using this          \n");
346  strcat(startupmsg, "build regularly, please add yourself to barnowl-users@mit.edu          \n");
347  strcat(startupmsg, "                                                                 ^ ^   \n");
348  strcat(startupmsg, "                                                                 OvO   \n");
349  strcat(startupmsg, "Please report any bugs to dirty-owl-hackers@mit.edu             (   )  \n");
350  strcat(startupmsg, "-----------------------------------------------------------------m-m---\n");
351  owl_function_adminmsg("", startupmsg);
352  sepbar(NULL);
353
354  /* process the startup file */
355  owl_function_debugmsg("startup: processing startup file");
356  owl_function_source(NULL);
357
358  wrefresh(sepwin);
359
360  /* load zephyr subs */
361  if (initialsubs) {
362    int ret2;
363    owl_function_debugmsg("startup: loading initial zephyr subs");
364
365    /* load default subscriptions */
366    ret=owl_zephyr_loaddefaultsubs();
367   
368    /* load subscriptions from subs file */
369    ret2=owl_zephyr_loadsubs(NULL, 0);
370
371    if (ret || ret2) {
372      owl_function_adminmsg("", "Error loading zephyr subscriptions");
373    } else if (ret2!=-1) {
374      owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
375    }
376
377    /* load login subscriptions */
378    if (owl_global_is_loginsubs(&g)) {
379      owl_function_debugmsg("startup: loading login subs");
380      owl_function_loadloginsubs(NULL);
381    }
382  }
383
384  /* First buddy check to sync the list without notifications */
385  owl_function_debugmsg("startup: doing initial zephyr buddy check");
386  /* owl_function_zephyr_buddy_check(0); */
387
388  /* set the startup and default style, based on userclue and presence of a
389   * formatting function */
390  owl_function_debugmsg("startup: setting startup and default style");
391  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
392    /* the style was set by the user: leave it alone */
393  } else if (owl_global_is_config_format(&g)) {
394    owl_global_set_default_style(&g, "perl");
395  } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) {
396    owl_global_set_default_style(&g, "default");
397  } else {
398    owl_global_set_default_style(&g, "basic");
399  }
400
401  /* zlog in if we need to */
402  if (owl_global_is_startuplogin(&g)) {
403    owl_function_debugmsg("startup: doing zlog in");
404    owl_zephyr_zlog_in();
405  }
406
407  owl_function_debugmsg("startup: set style for the view: %s", owl_global_get_default_style(&g));
408  s = owl_global_get_style_by_name(&g, owl_global_get_default_style(&g));
409  if(s)
410      owl_view_set_style(owl_global_get_current_view(&g), s);
411  else
412      owl_function_error("No such style: %s", owl_global_get_default_style(&g));
413
414  owl_function_debugmsg("startup: setting context interactive");
415  owl_context_set_interactive(owl_global_get_context(&g));
416
417  nexttimediff=10;
418  nexttime=time(NULL);
419
420  owl_function_debugmsg("startup: entering main loop");
421  /* main loop */
422  while (1) {
423
424    /* if a resize has been scheduled, deal with it */
425    owl_global_resize(&g, 0, 0);
426
427    /* these are here in case a resize changes the windows */
428    msgwin=owl_global_get_curs_msgwin(&g);
429    recwin=owl_global_get_curs_recwin(&g);
430    sepwin=owl_global_get_curs_sepwin(&g);
431    typwin=owl_global_get_curs_typwin(&g);
432
433    followlast=owl_global_should_followlast(&g);
434   
435    /* Do AIM stuff */
436    if (owl_global_is_doaimevents(&g)) {
437      owl_aim_process_events();
438
439      if (owl_global_is_aimloggedin(&g)) {
440        if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) {
441          /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */
442          owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g));
443        }
444      }
445    }
446
447    owl_perlconfig_mainloop();
448
449    /* little hack */
450    now=time(NULL);
451    today=localtime(&now);
452    if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) {
453      if (time(NULL)>nexttime) {
454        if (nexttimediff==1) {
455          nexttimediff=10;
456        } else {
457          nexttimediff=1;
458        }
459        nexttime+=nexttimediff;
460        owl_hack_animate();
461      }
462    }
463
464    owl_zephyr_process_events();
465   
466    /* Grab incoming messages. */
467    newmsgs=0;
468    while(owl_global_messagequeue_pending(&g)) {
469
470      m = owl_global_messagequeue_popmsg(&g);
471
472      if(owl_process_message(m))
473        newmsgs = 1;
474    }
475
476    /* is it time to check zbuddies? */
477    if (owl_global_is_pseudologins(&g)) {
478      if (owl_timer_is_expired(owl_global_get_zephyr_buddycheck_timer(&g))) {
479        owl_function_debugmsg("Doing zephyr buddy check");
480        owl_function_zephyr_buddy_check(1);
481        owl_timer_reset(owl_global_get_zephyr_buddycheck_timer(&g));
482      }
483    }
484
485    /* dispatch any muxevents */
486    owl_muxevents_dispatch(owl_global_get_muxevents(&g), 0);
487
488    /* follow the last message if we're supposed to */
489    if (newmsgs && followlast) {
490      owl_function_lastmsg_noredisplay();
491    }
492
493    /* do the newmsgproc thing */
494    if (newmsgs) {
495      owl_function_do_newmsgproc();
496    }
497   
498    /* redisplay if necessary */
499    /* this should be optimized to not run if the new messages won't be displayed */
500    if (newmsgs) {
501      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
502      sepbar(NULL);
503      if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
504        owl_popwin_refresh(owl_global_get_popwin(&g));
505        /* TODO: this is a broken kludge */
506        if (owl_global_get_viewwin(&g)) {
507          owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
508        }
509      }
510      owl_global_set_needrefresh(&g);
511    }
512
513    /* if a popwin just came up, refresh it */
514    pw=owl_global_get_popwin(&g);
515    if (owl_popwin_is_active(pw) && owl_popwin_needs_first_refresh(pw)) {
516      owl_popwin_refresh(pw);
517      owl_popwin_no_needs_first_refresh(pw);
518      owl_global_set_needrefresh(&g);
519      /* TODO: this is a broken kludge */
520      if (owl_global_get_viewwin(&g)) {
521        owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
522      }
523    }
524
525    /* update the terminal if we need to */
526    if (owl_global_is_needrefresh(&g)) {
527      /* leave the cursor in the appropriate window */
528      if (owl_global_is_typwin_active(&g)) {
529        owl_function_set_cursor(typwin);
530      } else {
531        owl_function_set_cursor(sepwin);
532      }
533      doupdate();
534      owl_global_set_noneedrefresh(&g);
535    }
536
537    /* Handle all keypresses.  If no key has been pressed, sleep for a
538     * little bit, but otherwise do not.  This lets input be grabbed
539     * as quickly as possbile */
540    j=wgetch(typwin);
541    if (j==ERR) {
542      usleep(10000);
543    } else {
544      owl_global_update_lastinputtime(&g);
545      /* find and activate the current keymap.
546       * TODO: this should really get fixed by activating
547       * keymaps as we switch between windows...
548       */
549      if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) {
550        owl_context_set_popless(owl_global_get_context(&g), 
551                                owl_global_get_viewwin(&g));
552        owl_function_activate_keymap("popless");
553      } else if (owl_global_is_typwin_active(&g) 
554                 && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) {
555        /*
556          owl_context_set_editline(owl_global_get_context(&g), tw);
557          owl_function_activate_keymap("editline");
558        */
559      } else if (owl_global_is_typwin_active(&g) 
560                 && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) {
561        owl_context_set_editmulti(owl_global_get_context(&g), tw);
562        owl_function_activate_keymap("editmulti");
563      } else {
564        owl_context_set_recv(owl_global_get_context(&g));
565        owl_function_activate_keymap("recv");
566      }
567      /* now actually handle the keypress */
568      ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j);
569      if (ret!=0 && ret!=1) {
570        owl_function_makemsg("Unable to handle keypress");
571      }
572    }
573
574    /* Log any error signals */
575    {
576      siginfo_t si;
577      int signum;
578      if ((signum = owl_global_get_errsignal_and_clear(&g, &si)) > 0) {
579        owl_function_error("Got unexpected signal: %d %s  (code: %d band: %d  errno: %d)", 
580                           signum, signum==SIGPIPE?"SIGPIPE":"SIG????",
581                           si.si_code, si.si_band, si.si_errno);
582      }
583    }
584
585  }
586}
587
588/*
589 * Process a new message passed to us on the message queue from some
590 * protocol. This includes adding it to the message list, updating the
591 * view and scrolling if appropriate, logging it, and so on.
592 *
593 * Either a pointer is kept to the message internally, or it is freed
594 * if unneeded. The caller no longer ``owns'' the message's memory.
595 *
596 * Returns 1 if the message was added to the message list, and 0 if it
597 * was ignored due to user settings or otherwise.
598 */
599int owl_process_message(owl_message *m) {
600  owl_filter *f;
601  /* if this message it on the puntlist, nuke it and continue */
602  if (owl_global_message_is_puntable(&g, m)) {
603    owl_message_free(m);
604    return 0;
605  }
606
607  /*  login or logout that should be ignored? */
608  if (owl_global_is_ignorelogins(&g)
609      && owl_message_is_loginout(m)) {
610    owl_message_free(m);
611    return 0;
612  }
613
614  if (!owl_global_is_displayoutgoing(&g)
615      && owl_message_is_direction_out(m)) {
616    owl_message_free(m);
617    return 0;
618  }
619
620  /* add it to the global list */
621  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
622  /* add it to any necessary views; right now there's only the current view */
623  owl_view_consider_message(owl_global_get_current_view(&g), m);
624
625  if(owl_message_is_direction_in(m)) {
626    /* let perl know about it*/
627    owl_perlconfig_getmsg(m, 0, NULL);
628
629    /* do we need to autoreply? */
630    if (owl_global_is_zaway(&g) && !owl_message_get_attribute_value(m, "isauto")) {
631      if (owl_message_is_type_zephyr(m)) {
632        owl_zephyr_zaway(m);
633      } else if (owl_message_is_type_aim(m)) {
634        if (owl_message_is_private(m)) {
635          owl_function_send_aimawymsg(owl_message_get_sender(m), owl_global_get_zaway_msg(&g));
636        }
637      }
638    }
639
640    /* ring the bell if it's a personal */
641    if (!strcmp(owl_global_get_personalbell(&g), "on")) {
642      if (!owl_message_is_loginout(m) &&
643          !owl_message_is_mail(m) &&
644          owl_message_is_personal(m)) {
645        owl_function_beep();
646      }
647    } else if (!strcmp(owl_global_get_personalbell(&g), "off")) {
648      /* do nothing */
649    } else {
650      f=owl_global_get_filter(&g, owl_global_get_personalbell(&g));
651      if (f && owl_filter_message_match(f, m)) {
652        owl_function_beep();
653      }
654    }
655
656    /* if it matches the alert filter, do the alert action */
657    f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
658    if (f && owl_filter_message_match(f, m)) {
659      owl_function_command(owl_global_get_alert_action(&g));
660    }
661
662    /* if it's a zephyr login or logout, update the zbuddylist */
663    if (owl_message_is_type_zephyr(m) && owl_message_is_loginout(m)) {
664      if (owl_message_is_login(m)) {
665        owl_zbuddylist_adduser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
666      } else if (owl_message_is_logout(m)) {
667        owl_zbuddylist_deluser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
668      } else {
669        owl_function_error("Internal error: received login notice that is neither login nor logout");
670      }
671    }
672
673    /* check for burning ears message */
674    /* this is an unsupported feature */
675    if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) {
676      char *buff;
677      buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m));
678      owl_function_adminmsg(buff, "");
679      owl_free(buff);
680      owl_function_beep();
681    }
682  }
683
684  /* log the message if we need to */
685  owl_log_message(m);
686
687  return 1;
688}
689
690void sig_handler(int sig, siginfo_t *si, void *data)
691{
692  if (sig==SIGWINCH) {
693    /* we can't inturrupt a malloc here, so it just sets a flag
694     * schedulding a resize for later
695     */
696    owl_function_resize();
697  } else if (sig==SIGPIPE || sig==SIGCHLD) {
698    /* Set a flag and some info that we got the sigpipe
699     * so we can record that we got it and why... */
700    owl_global_set_errsignal(&g, sig, si);
701  } else if (sig==SIGTERM || sig==SIGHUP) {
702    owl_function_quit();
703  }
704
705}
706
707void usage()
708{
709  fprintf(stderr, "Barnowl version %s\n", OWL_VERSION_STRING);
710  fprintf(stderr, "Usage: barnowl [-n] [-d] [-D] [-v] [-h] [-c <configfile>] [-s <confdir>] [-t <ttyname>]\n");
711  fprintf(stderr, "  -n      don't load zephyr subscriptions\n");
712  fprintf(stderr, "  -d      enable debugging\n");
713  fprintf(stderr, "  -D      enable debugging and delete previous debug file\n");
714  fprintf(stderr, "  -v      print the Barnowl version number and exit\n");
715  fprintf(stderr, "  -h      print this help message\n");
716  fprintf(stderr, "  -c      specify an alternate config file\n");
717  fprintf(stderr, "  -s      specify an alternate config dir (default ~/.owl)\n");
718  fprintf(stderr, "  -t      set the tty name\n");
719}
720
721#if OWL_STDERR_REDIR
722
723/* Replaces stderr with a pipe so that we can read from it.
724 * Returns the fd of the pipe from which stderr can be read. */
725int stderr_replace(void)
726{
727  int pipefds[2];
728  if (0 != pipe(pipefds)) {
729    perror("pipe");
730    owl_function_debugmsg("stderr_replace: pipe FAILED\n");
731    return -1;
732  }
733    owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]);
734  if (-1 == dup2(pipefds[1], 2 /*stderr*/)) {
735    owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno));
736    perror("dup2");
737    return -1;
738  }
739  return pipefds[0];
740}
741
742/* Sends stderr (read from rfd) messages to the error console */
743void stderr_redirect_handler(int handle, int rfd, int eventmask, void *data) 
744{
745  int navail, bread;
746  char *buf;
747  /*owl_function_debugmsg("stderr_redirect: called with rfd=%d\n", rfd);*/
748  if (rfd<0) return;
749  if (-1 == ioctl(rfd, FIONREAD, (void*)&navail)) {
750    return;
751  }
752  /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/
753  if (navail<=0) return;
754  if (navail>256) { navail = 256; }
755  buf = owl_malloc(navail+1);
756  bread = read(rfd, buf, navail);
757  if (buf[navail-1] != '\0') {
758    buf[navail] = '\0';
759  }
760  owl_function_error("Err: %s", buf);
761  owl_free(buf);
762}
763
764#endif /* OWL_STDERR_REDIR */
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