source: owl.c @ 8faab0c

barnowl_perlaimdebianrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 8faab0c was c0c4449c, checked in by Alejandro R. Sedeño <asedeno@mit.edu>, 13 years ago
Fix a race condition in which zephyrs received during init are not noticed until the next zephyr after entering the mainloop.
  • Property mode set to 100644
File size: 25.6 KB
RevLine 
[5ca5f8e]1/*  Copyright (c) 2004 James Kretchmar. All rights reserved.
[7d4fbcd]2 *
[5ca5f8e]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.
[7d4fbcd]38 */
39
40#include <stdio.h>
41#include <unistd.h>
42#include <stdlib.h>
43#include <string.h>
44#include <signal.h>
[5145235]45#include <time.h>
[7d4fbcd]46#include <sys/param.h>
[700c712]47#include <sys/types.h>
[9c7a701]48#include <sys/time.h>
[8232149]49#include <termios.h>
[38cf544c]50#include <sys/stat.h>
[7d4fbcd]51#include "owl.h"
52
[2a2bb60]53#if OWL_STDERR_REDIR
[e8b95f8]54#ifdef HAVE_SYS_IOCTL_H
[2a2bb60]55#include <sys/ioctl.h>
[e8b95f8]56#endif
57#ifdef HAVE_SYS_FILIO_H
58#include <sys/filio.h>
59#endif
[2a2bb60]60int stderr_replace(void);
61#endif
62
[1aee7d9]63static const char fileIdent[] = "$Id$";
64
[b2b0773]65owl_global g;
66
[de22c3d]67int main(int argc, char **argv, char **env)
68{
[7d4fbcd]69  WINDOW *recwin, *sepwin, *typwin, *msgwin;
70  owl_editwin *tw;
71  owl_popwin *pw;
[9c7a701]72  int ret, initialsubs, debug, argcsave, followlast;
[13a3c1db]73  int newmsgs, nexttimediff;
[7d4fbcd]74  struct sigaction sigact;
[2fa15f0]75  char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE];
[b363d83]76  char *confdir;
[7d4fbcd]77  owl_filter *f;
[bd3f232]78  owl_style *s;
[a15a84f]79  time_t nexttime, now;
80  struct tm *today;
[38cf544c]81  char *dir;
[8232149]82  struct termios tio;
[13a3c1db]83  owl_message *m;
[2a2bb60]84#if OWL_STDERR_REDIR
85  int newstderr;
86#endif
[7d4fbcd]87
88  argcsave=argc;
89  argvsave=argv;
90  configfile=NULL;
[b363d83]91  confdir = NULL;
[7d4fbcd]92  tty=NULL;
93  debug=0;
[bd3f232]94  initialsubs=1;
[7d4fbcd]95  if (argc>0) {
96    argv++;
97    argc--;
98  }
99  while (argc>0) {
100    if (!strcmp(argv[0], "-n")) {
101      initialsubs=0;
102      argv++;
103      argc--;
104    } else if (!strcmp(argv[0], "-c")) {
105      if (argc<2) {
[b363d83]106        fprintf(stderr, "Too few arguments to -c\n");
107        usage();
108        exit(1);
[7d4fbcd]109      }
110      configfile=argv[1];
111      argv+=2;
112      argc-=2;
113    } else if (!strcmp(argv[0], "-t")) {
114      if (argc<2) {
[b363d83]115        fprintf(stderr, "Too few arguments to -t\n");
116        usage();
117        exit(1);
[7d4fbcd]118      }
119      tty=argv[1];
120      argv+=2;
121      argc-=2;
[b363d83]122    } else if (!strcmp(argv[0], "-s")){
123      if (argc<2) {
124        fprintf(stderr, "Too few arguments to -s\n");
125        usage();
126        exit(1);
127      }
128      confdir = argv[1];
129      argv+=2;
130      argc-=2;
[7d4fbcd]131    } else if (!strcmp(argv[0], "-d")) {
132      debug=1;
133      argv++;
134      argc--;
[a68f05d]135    } else if (!strcmp(argv[0], "-D")) {
136      debug=1;
137      unlink(OWL_DEBUG_FILE);
138      argv++;
139      argc--;
[7d4fbcd]140    } else if (!strcmp(argv[0], "-v")) {
[78667f3]141      printf("This is barnowl version %s\n", OWL_VERSION_STRING);
[7d4fbcd]142      exit(0);
143    } else {
144      fprintf(stderr, "Uknown argument\n");
145      usage();       
146      exit(1);
147    }
148  }
149
[176d3443]150  owl_function_debugmsg("startup: Finished parsing arguments");
151
[7d4fbcd]152  /* signal handler */
[c9e72d1]153  /*sigact.sa_handler=sig_handler;*/
154  sigact.sa_sigaction=sig_handler;
[7d4fbcd]155  sigemptyset(&sigact.sa_mask);
[c9e72d1]156  sigact.sa_flags=SA_SIGINFO;
[7d4fbcd]157  sigaction(SIGWINCH, &sigact, NULL);
158  sigaction(SIGALRM, &sigact, NULL);
[c9e72d1]159  sigaction(SIGPIPE, &sigact, NULL);
[fe1f605]160  sigaction(SIGTERM, &sigact, NULL);
161  sigaction(SIGHUP, &sigact, NULL);
[7d4fbcd]162
[8232149]163  /* save initial terminal settings */
164  tcgetattr(0, owl_global_get_startup_tio(&g));
165
166  /* turn ISTRIP off */
167  tcgetattr(0, &tio);
168  tio.c_iflag &= ~ISTRIP;
169  tcsetattr(0, TCSAFLUSH, &tio);
170
[7d4fbcd]171  /* screen init */
[b20de4f]172  if (!getenv("TERMINFO")) {
[18e28a4]173    owl_function_debugmsg("startup: Not setting TERMINFO");
[b20de4f]174  } else {
175    owl_function_debugmsg("startup: leaving TERMINFO as %s from envrionment", getenv("TERMINFO"));
176  }
[7d4fbcd]177  initscr();
178  start_color();
[ac70242]179#ifdef HAVE_USE_DEFAULT_COLORS
[7d4fbcd]180  use_default_colors();
[ac70242]181#endif
[7d4fbcd]182  raw();
183  noecho();
184
185  /* define simple color pairs */
186  if (has_colors() && COLOR_PAIRS>=8) {
[8fa9562]187    int bg = COLOR_BLACK;
188#ifdef HAVE_USE_DEFAULT_COLORS
189    bg = -1;
190#endif
191    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   bg);
192    init_pair(OWL_COLOR_RED,     COLOR_RED,     bg);
193    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   bg);
194    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  bg);
195    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    bg);
196    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, bg);
197    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    bg);
198    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   bg);
[7d4fbcd]199  }
[38cf544c]200
[bd3f232]201  /* owl global init */
[7d4fbcd]202  owl_global_init(&g);
[b363d83]203  if (debug) owl_global_set_debug_on(&g);
204  if (confdir) owl_global_set_confdir(&g, confdir);
[b20de4f]205  owl_function_debugmsg("startup: first available debugging message");
[7d4fbcd]206  owl_global_set_startupargs(&g, argcsave, argvsave);
[09489b89]207  owl_global_set_haveaim(&g);
[2a2bb60]208
[9c7a701]209  /* prepare stdin dispatch */
210  {
211    owl_dispatch *d = owl_malloc(sizeof(owl_dispatch));
[4cc0ee0b]212    d->fd = fileno(stdin);
[9c7a701]213    d->cfunc = &owl_process_input;
214    d->pfunc = NULL;
215    owl_select_add_dispatch(d);
216  }
217 
[596c22df]218#ifdef HAVE_LIBZEPHYR
219  /* zephyr init */
220  ret=owl_zephyr_initialize();
[9c7a701]221  if (!ret) {
222    owl_dispatch *d = owl_malloc(sizeof(owl_dispatch));
223    d->fd = ZGetFD();
224    d->cfunc = &owl_zephyr_process_events;
225    d->pfunc = NULL;
226    owl_select_add_dispatch(d);
227    owl_global_set_havezephyr(&g);
228  }
229
[596c22df]230#endif
231
[2a2bb60]232#if OWL_STDERR_REDIR
[a0a5179]233  /* Do this only after we've started curses up... */
234  owl_function_debugmsg("startup: doing stderr redirection");
[2a2bb60]235  newstderr = stderr_replace();
[afbf668]236  owl_muxevents_add(owl_global_get_muxevents(&g), newstderr, OWL_MUX_READ,
237                    stderr_redirect_handler, NULL);
[2a2bb60]238#endif   
239
[38cf544c]240  /* create the owl directory, in case it does not exist */
[a0a5179]241  owl_function_debugmsg("startup: creating owl directory, if not present");
[b363d83]242  dir=owl_global_get_confdir(&g);
[38cf544c]243  mkdir(dir, S_IRWXU);
[5145235]244
[ced25d1]245  /* set the tty, either from the command line, or by figuring it out */
[a0a5179]246  owl_function_debugmsg("startup: setting tty name");
[61e79a9]247  if (tty) {
248    owl_global_set_tty(&g, tty);
249  } else {
250    owl_global_set_tty(&g, owl_util_get_default_tty());
251  }
[7d4fbcd]252
[b6c067a]253  /* Initialize perl */
254  owl_function_debugmsg("startup: processing config file");
255  owl_context_set_readconfig(owl_global_get_context(&g));
256  perlerr=owl_perlconfig_initperl(configfile);
257  if (perlerr) {
258    endwin();
259    owl_function_error("Internal perl error: %s\n", perlerr);
260    fprintf(stderr, "Internal perl error: %s\n", perlerr);
261    fflush(stderr);
262    printf("Internal perl error: %s\n", perlerr);
263    fflush(stdout);
264    exit(1);
265  }
266
[bd3f232]267  /* setup the built-in styles */
[a0a5179]268  owl_function_debugmsg("startup: creating built-in styles");
[bd3f232]269
270  s=owl_malloc(sizeof(owl_style));
[176d3443]271  owl_style_create_internal(s, "basic", &owl_stylefunc_basic, "Basic message formatting.");
[bd3f232]272  owl_global_add_style(&g, s);
[8b32593]273
[7d4fbcd]274  /* setup the default filters */
[3abf28b]275  /* the personal filter will need to change again when AIM chat's are
276   *  included.  Also, there should be an %aimme% */
[a0a5179]277  owl_function_debugmsg("startup: creating default filters");
[bd3f232]278  f=owl_malloc(sizeof(owl_filter));
[095e717]279  owl_filter_init_fromstring(f, "personal", "isprivate ^true$ and ( not type ^zephyr$"
280                             " or ( class ^message and"
281                             " ( instance ^personal$ or instance ^urgent$ ) ) )");
[7d4fbcd]282  owl_list_append_element(owl_global_get_filterlist(&g), f);
283
[bd3f232]284  f=owl_malloc(sizeof(owl_filter));
[fa86732]285  owl_filter_init_fromstring(f, "wordwrap", "not ( type ^admin$ or type ^zephyr$ ) ");
286  owl_list_append_element(owl_global_get_filterlist(&g), f);
287
288  f=owl_malloc(sizeof(owl_filter));
[0c502e9]289  owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )");
[7d4fbcd]290  owl_list_append_element(owl_global_get_filterlist(&g), f);
291
[bd3f232]292  f=owl_malloc(sizeof(owl_filter));
[0236842]293  owl_filter_init_fromstring(f, "ping", "opcode ^ping$");
294  owl_list_append_element(owl_global_get_filterlist(&g), f);
295
[bd3f232]296  f=owl_malloc(sizeof(owl_filter));
[0236842]297  owl_filter_init_fromstring(f, "auto", "opcode ^auto$");
298  owl_list_append_element(owl_global_get_filterlist(&g), f);
299
[bd3f232]300  f=owl_malloc(sizeof(owl_filter));
[0c502e9]301  owl_filter_init_fromstring(f, "login", "not login ^none$");
[0236842]302  owl_list_append_element(owl_global_get_filterlist(&g), f);
303
[bd3f232]304  f=owl_malloc(sizeof(owl_filter));
[7d4fbcd]305  owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$");
306  owl_list_append_element(owl_global_get_filterlist(&g), f);
307
[bd3f232]308  f=owl_malloc(sizeof(owl_filter));
[5a6e6b9]309  owl_filter_init_fromstring(f, "out", "direction ^out$");
310  owl_list_append_element(owl_global_get_filterlist(&g), f);
311
[bd3f232]312  f=owl_malloc(sizeof(owl_filter));
[31e48a3]313  owl_filter_init_fromstring(f, "aim", "type ^aim$");
314  owl_list_append_element(owl_global_get_filterlist(&g), f);
315
[bd3f232]316  f=owl_malloc(sizeof(owl_filter));
[31e48a3]317  owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$");
318  owl_list_append_element(owl_global_get_filterlist(&g), f);
319
[bd3f232]320  f=owl_malloc(sizeof(owl_filter));
[89426ab]321  owl_filter_init_fromstring(f, "none", "false");
322  owl_list_append_element(owl_global_get_filterlist(&g), f);
323
[bd3f232]324  f=owl_malloc(sizeof(owl_filter));
[89426ab]325  owl_filter_init_fromstring(f, "all", "true");
[7d4fbcd]326  owl_list_append_element(owl_global_get_filterlist(&g), f);
327
328  /* set the current view */
[a0a5179]329  owl_function_debugmsg("startup: setting the current view");
[c3ab155]330  owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default"));
[7d4fbcd]331
[96f8e5b]332  /* AIM init */
[a0a5179]333  owl_function_debugmsg("startup: doing AIM initialization");
[96f8e5b]334  owl_aim_init();
335
[ced25d1]336  /* execute the startup function in the configfile */
[a0a5179]337  owl_function_debugmsg("startup: executing perl startup, if applicable");
[0337203]338  perlout = owl_perlconfig_execute("BarnOwl::Hooks::_startup();");
[7d4fbcd]339  if (perlout) owl_free(perlout);
[212764e]340
[7d4fbcd]341  /* hold on to the window names for convenience */
342  msgwin=owl_global_get_curs_msgwin(&g);
343  recwin=owl_global_get_curs_recwin(&g);
344  sepwin=owl_global_get_curs_sepwin(&g);
345  typwin=owl_global_get_curs_typwin(&g);
346  tw=owl_global_get_typwin(&g);
347
[252a5c2]348  /* welcome message */
[a0a5179]349  owl_function_debugmsg("startup: creating splash message");
[52f3507]350  strcpy(startupmsg, "-----------------------------------------------------------------------\n");
[c2c5c77]351  sprintf(buff,      "Welcome to barnowl version %s.  Press 'h' for on-line help.            \n", OWL_VERSION_STRING);
[252a5c2]352  strcat(startupmsg, buff);
[52f3507]353  strcat(startupmsg, "                                                                       \n");
[c2c5c77]354  strcat(startupmsg, "This is a development build of barnowl. If you are using this          \n");
355  strcat(startupmsg, "build regularly, please add yourself to barnowl-users@mit.edu          \n");
[52f3507]356  strcat(startupmsg, "                                                                 ^ ^   \n");
[e132a2d]357  strcat(startupmsg, "                                                                 OvO   \n");
[2058d7a]358  strcat(startupmsg, "Please report any bugs to dirty-owl-hackers@mit.edu             (   )  \n");
[52f3507]359  strcat(startupmsg, "-----------------------------------------------------------------m-m---\n");
[252a5c2]360  owl_function_adminmsg("", startupmsg);
361  sepbar(NULL);
362
[687c674]363  /* process the startup file */
364  owl_function_debugmsg("startup: processing startup file");
365  owl_function_source(NULL);
366
[7d4fbcd]367  wrefresh(sepwin);
368
369  /* load zephyr subs */
[bd3f232]370  if (initialsubs) {
[4357be8]371    int ret2;
[a0a5179]372    owl_function_debugmsg("startup: loading initial zephyr subs");
[4357be8]373
374    /* load default subscriptions */
375    ret=owl_zephyr_loaddefaultsubs();
[252a5c2]376   
[4357be8]377    /* load subscriptions from subs file */
[95474d7]378    ret2=owl_zephyr_loadsubs(NULL, 0);
[4357be8]379
380    if (ret || ret2) {
381      owl_function_adminmsg("", "Error loading zephyr subscriptions");
382    } else if (ret2!=-1) {
[bd3f232]383      owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
384    }
[7d4fbcd]385
[bd3f232]386    /* load login subscriptions */
387    if (owl_global_is_loginsubs(&g)) {
[a0a5179]388      owl_function_debugmsg("startup: loading login subs");
[bd3f232]389      owl_function_loadloginsubs(NULL);
390    }
[7d4fbcd]391  }
392
[5a95b69]393  /* First buddy check to sync the list without notifications */
394  owl_function_debugmsg("startup: doing initial zephyr buddy check");
[4357be8]395  /* owl_function_zephyr_buddy_check(0); */
[5a95b69]396
[f933403]397  /* set the startup and default style, based on userclue and presence of a
398   * formatting function */
[a0a5179]399  owl_function_debugmsg("startup: setting startup and default style");
[27c3a93]400  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
401    /* the style was set by the user: leave it alone */
402  } else if (owl_global_is_config_format(&g)) {
[f933403]403    owl_global_set_default_style(&g, "perl");
404  } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) {
405    owl_global_set_default_style(&g, "default");
406  } else {
407    owl_global_set_default_style(&g, "basic");
408  }
409
[7d4fbcd]410  /* zlog in if we need to */
411  if (owl_global_is_startuplogin(&g)) {
[a0a5179]412    owl_function_debugmsg("startup: doing zlog in");
[31e48a3]413    owl_zephyr_zlog_in();
[7d4fbcd]414  }
415
[39dc159]416  owl_function_debugmsg("startup: set style for the view: %s", owl_global_get_default_style(&g));
[72c210f]417  s = owl_global_get_style_by_name(&g, owl_global_get_default_style(&g));
418  if(s)
419      owl_view_set_style(owl_global_get_current_view(&g), s);
420  else
421      owl_function_error("No such style: %s", owl_global_get_default_style(&g));
[a0a5179]422
423  owl_function_debugmsg("startup: setting context interactive");
[7d4fbcd]424  owl_context_set_interactive(owl_global_get_context(&g));
425
[a15a84f]426  nexttimediff=10;
[4b464a4]427  nexttime=time(NULL);
428
[c0c4449c]429#ifdef HAVE_LIBZEPHYR
430  /* Check for any zephyrs that have come in while we've done init. */
431  owl_zephyr_process_events();
432#endif
433 
[a0a5179]434  owl_function_debugmsg("startup: entering main loop");
[7d4fbcd]435  /* main loop */
436  while (1) {
437
438    /* if a resize has been scheduled, deal with it */
439    owl_global_resize(&g, 0, 0);
440
441    /* these are here in case a resize changes the windows */
442    msgwin=owl_global_get_curs_msgwin(&g);
443    recwin=owl_global_get_curs_recwin(&g);
444    sepwin=owl_global_get_curs_sepwin(&g);
445    typwin=owl_global_get_curs_typwin(&g);
446
447    followlast=owl_global_should_followlast(&g);
[5789230]448   
[8203afd]449    owl_perlconfig_mainloop();
[bc220b2]450
[4b464a4]451    /* little hack */
[a15a84f]452    now=time(NULL);
453    today=localtime(&now);
454    if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) {
[4b464a4]455      if (time(NULL)>nexttime) {
456        if (nexttimediff==1) {
[a15a84f]457          nexttimediff=10;
[4b464a4]458        } else {
459          nexttimediff=1;
460        }
461        nexttime+=nexttimediff;
462        owl_hack_animate();
463      }
464    }
465
[aac889a]466    /* Grab incoming messages. */
[d09e5a1]467    newmsgs=0;
[13a3c1db]468    while(owl_global_messagequeue_pending(&g)) {
[5a95b69]469
[13a3c1db]470      m = owl_global_messagequeue_popmsg(&g);
[7d4fbcd]471
[13a3c1db]472      if(owl_process_message(m))
473        newmsgs = 1;
[7d4fbcd]474    }
475
[5a95b69]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
[afbf668]485    /* dispatch any muxevents */
486    owl_muxevents_dispatch(owl_global_get_muxevents(&g), 0);
487
[7d4fbcd]488    /* follow the last message if we're supposed to */
[d09e5a1]489    if (newmsgs && followlast) {
[7d4fbcd]490      owl_function_lastmsg_noredisplay();
491    }
[700c712]492
[ced25d1]493    /* do the newmsgproc thing */
[d09e5a1]494    if (newmsgs) {
[8f44c6b]495      owl_function_do_newmsgproc();
[700c712]496    }
[7d4fbcd]497   
498    /* redisplay if necessary */
[d09e5a1]499    /* this should be optimized to not run if the new messages won't be displayed */
500    if (newmsgs) {
[7d4fbcd]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      }
[4cc0ee0b]533      owl_function_debugmsg("owl.c -- doupdate()");
[7d4fbcd]534      doupdate();
535      owl_global_set_noneedrefresh(&g);
536    }
537
[bd3f232]538    /* Handle all keypresses.  If no key has been pressed, sleep for a
539     * little bit, but otherwise do not.  This lets input be grabbed
540     * as quickly as possbile */
[9c7a701]541
542    /* select on FDs we know about. */
543    owl_select();
[2a2bb60]544
[c9e72d1]545    /* Log any error signals */
546    {
547      siginfo_t si;
548      int signum;
549      if ((signum = owl_global_get_errsignal_and_clear(&g, &si)) > 0) {
[81634b6]550        owl_function_error("Got unexpected signal: %d %s  (code: %d band: %d  errno: %d)", 
[afbf668]551                           signum, signum==SIGPIPE?"SIGPIPE":"SIG????",
[81634b6]552                           si.si_code, si.si_band, si.si_errno);
[c9e72d1]553      }
554    }
555
[7d4fbcd]556  }
557}
558
[13a3c1db]559/*
560 * Process a new message passed to us on the message queue from some
561 * protocol. This includes adding it to the message list, updating the
562 * view and scrolling if appropriate, logging it, and so on.
563 *
564 * Either a pointer is kept to the message internally, or it is freed
565 * if unneeded. The caller no longer ``owns'' the message's memory.
566 *
567 * Returns 1 if the message was added to the message list, and 0 if it
568 * was ignored due to user settings or otherwise.
569 */
570int owl_process_message(owl_message *m) {
571  owl_filter *f;
572  /* if this message it on the puntlist, nuke it and continue */
573  if (owl_global_message_is_puntable(&g, m)) {
574    owl_message_free(m);
575    return 0;
576  }
577
578  /*  login or logout that should be ignored? */
579  if (owl_global_is_ignorelogins(&g)
580      && owl_message_is_loginout(m)) {
581    owl_message_free(m);
582    return 0;
583  }
584
585  if (!owl_global_is_displayoutgoing(&g)
586      && owl_message_is_direction_out(m)) {
587    owl_message_free(m);
588    return 0;
589  }
590
591  /* add it to the global list */
592  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
593  /* add it to any necessary views; right now there's only the current view */
594  owl_view_consider_message(owl_global_get_current_view(&g), m);
595
596  if(owl_message_is_direction_in(m)) {
597    /* let perl know about it*/
598    owl_perlconfig_getmsg(m, 0, NULL);
599
600    /* do we need to autoreply? */
601    if (owl_global_is_zaway(&g) && !owl_message_get_attribute_value(m, "isauto")) {
602      if (owl_message_is_type_zephyr(m)) {
603        owl_zephyr_zaway(m);
604      } else if (owl_message_is_type_aim(m)) {
605        if (owl_message_is_private(m)) {
606          owl_function_send_aimawymsg(owl_message_get_sender(m), owl_global_get_zaway_msg(&g));
607        }
608      }
609    }
610
611    /* ring the bell if it's a personal */
612    if (!strcmp(owl_global_get_personalbell(&g), "on")) {
613      if (!owl_message_is_loginout(m) &&
614          !owl_message_is_mail(m) &&
615          owl_message_is_personal(m)) {
616        owl_function_beep();
617      }
618    } else if (!strcmp(owl_global_get_personalbell(&g), "off")) {
619      /* do nothing */
620    } else {
621      f=owl_global_get_filter(&g, owl_global_get_personalbell(&g));
622      if (f && owl_filter_message_match(f, m)) {
623        owl_function_beep();
624      }
625    }
626
627    /* if it matches the alert filter, do the alert action */
628    f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
629    if (f && owl_filter_message_match(f, m)) {
630      owl_function_command(owl_global_get_alert_action(&g));
631    }
632
633    /* if it's a zephyr login or logout, update the zbuddylist */
634    if (owl_message_is_type_zephyr(m) && owl_message_is_loginout(m)) {
635      if (owl_message_is_login(m)) {
636        owl_zbuddylist_adduser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
637      } else if (owl_message_is_logout(m)) {
638        owl_zbuddylist_deluser(owl_global_get_zephyr_buddylist(&g), owl_message_get_sender(m));
639      } else {
640        owl_function_error("Internal error: received login notice that is neither login nor logout");
641      }
642    }
643
644    /* check for burning ears message */
645    /* this is an unsupported feature */
646    if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) {
647      char *buff;
648      buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m));
649      owl_function_adminmsg(buff, "");
650      owl_free(buff);
651      owl_function_beep();
652    }
653  }
654
655  /* log the message if we need to */
656  owl_log_message(m);
657
658  return 1;
659}
660
[9c7a701]661void owl_process_aim()
662{
663  if (owl_global_is_doaimevents(&g)) {
664    owl_aim_process_events();
665   
666    if (owl_global_is_aimloggedin(&g)) {
667      if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) {
668        /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */
669        owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g));
670      }
671    }
672  }
673}
674
675void owl_process_input()
676{
677  int ret, j;
678  owl_popwin *pw;
679  owl_editwin *tw;
680
[4cc0ee0b]681  while (1) {
682    j = wgetch(owl_global_get_curs_typwin(&g));
683    if (j == ERR) return;
[9c7a701]684
[4cc0ee0b]685    owl_global_set_lastinputtime(&g, time(NULL));
686    pw=owl_global_get_popwin(&g);
687    tw=owl_global_get_typwin(&g);
688   
689    /* find and activate the current keymap.
690     * TODO: this should really get fixed by activating
691     * keymaps as we switch between windows...
692     */
693    if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) {
694      owl_context_set_popless(owl_global_get_context(&g), 
695                              owl_global_get_viewwin(&g));
696      owl_function_activate_keymap("popless");
697    } else if (owl_global_is_typwin_active(&g) 
698               && owl_editwin_get_style(tw) == OWL_EDITWIN_STYLE_ONELINE) {
699      /*
700        owl_context_set_editline(owl_global_get_context(&g), tw);
701        owl_function_activate_keymap("editline");
702      */
703    } else if (owl_global_is_typwin_active(&g) 
704               && owl_editwin_get_style(tw) == OWL_EDITWIN_STYLE_MULTILINE) {
705      owl_context_set_editmulti(owl_global_get_context(&g), tw);
706      owl_function_activate_keymap("editmulti");
707    } else {
708      owl_context_set_recv(owl_global_get_context(&g));
709      owl_function_activate_keymap("recv");
710    }
711    /* now actually handle the keypress */
712    ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j);
713    if (ret != 0 && ret != 1) {
714      owl_function_makemsg("Unable to handle keypress");
715    }
[9c7a701]716  }
717}
718
[de22c3d]719void sig_handler(int sig, siginfo_t *si, void *data)
720{
[7d4fbcd]721  if (sig==SIGWINCH) {
[bd3f232]722    /* we can't inturrupt a malloc here, so it just sets a flag
723     * schedulding a resize for later
724     */
[7d4fbcd]725    owl_function_resize();
[afbf668]726  } else if (sig==SIGPIPE || sig==SIGCHLD) {
[c9e72d1]727    /* Set a flag and some info that we got the sigpipe
728     * so we can record that we got it and why... */
729    owl_global_set_errsignal(&g, sig, si);
[fe1f605]730  } else if (sig==SIGTERM || sig==SIGHUP) {
731    owl_function_quit();
[7d4fbcd]732  }
733}
734
[de22c3d]735void usage()
736{
[78667f3]737  fprintf(stderr, "Barnowl version %s\n", OWL_VERSION_STRING);
738  fprintf(stderr, "Usage: barnowl [-n] [-d] [-D] [-v] [-h] [-c <configfile>] [-s <confdir>] [-t <ttyname>]\n");
[e7cc1c3]739  fprintf(stderr, "  -n      don't load zephyr subscriptions\n");
740  fprintf(stderr, "  -d      enable debugging\n");
[a68f05d]741  fprintf(stderr, "  -D      enable debugging and delete previous debug file\n");
[78667f3]742  fprintf(stderr, "  -v      print the Barnowl version number and exit\n");
[e7cc1c3]743  fprintf(stderr, "  -h      print this help message\n");
744  fprintf(stderr, "  -c      specify an alternate config file\n");
[b363d83]745  fprintf(stderr, "  -s      specify an alternate config dir (default ~/.owl)\n");
[e7cc1c3]746  fprintf(stderr, "  -t      set the tty name\n");
[7d4fbcd]747}
[2a2bb60]748
749#if OWL_STDERR_REDIR
750
751/* Replaces stderr with a pipe so that we can read from it.
752 * Returns the fd of the pipe from which stderr can be read. */
[de22c3d]753int stderr_replace(void)
754{
[2a2bb60]755  int pipefds[2];
756  if (0 != pipe(pipefds)) {
757    perror("pipe");
758    owl_function_debugmsg("stderr_replace: pipe FAILED\n");
759    return -1;
760  }
761    owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]);
762  if (-1 == dup2(pipefds[1], 2 /*stderr*/)) {
763    owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno));
764    perror("dup2");
765    return -1;
766  }
767  return pipefds[0];
768}
769
[afbf668]770/* Sends stderr (read from rfd) messages to the error console */
771void stderr_redirect_handler(int handle, int rfd, int eventmask, void *data) 
[de22c3d]772{
[2a2bb60]773  int navail, bread;
774  char *buf;
775  /*owl_function_debugmsg("stderr_redirect: called with rfd=%d\n", rfd);*/
776  if (rfd<0) return;
777  if (-1 == ioctl(rfd, FIONREAD, (void*)&navail)) {
778    return;
779  }
780  /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/
781  if (navail<=0) return;
782  if (navail>256) { navail = 256; }
783  buf = owl_malloc(navail+1);
784  bread = read(rfd, buf, navail);
785  if (buf[navail-1] != '\0') {
786    buf[navail] = '\0';
787  }
788  owl_function_error("Err: %s", buf);
789  owl_free(buf);
790}
791
792#endif /* OWL_STDERR_REDIR */
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