source: owl.c @ 27c3a93

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 27c3a93 was 27c3a93, checked in by Erik Nygren <nygren@mit.edu>, 18 years ago
2.0.9-pre-2 Better reporting of perl errors (both into the errqueue and also clearing the error after displaying it). Allow default_style to be specified in config.
  • Property mode set to 100644
File size: 17.2 KB
RevLine 
[5789230]1/*
[7d4fbcd]2 * Copyright 2001 Massachusetts Institute of Technology
3 *
4 * Permission to use, copy, modify, and distribute this software and
5 * its documentation for any purpose and without fee is hereby
6 * granted, provided that the above copyright notice and this
7 * permission notice appear in all copies and in supporting
8 * documentation.  No representation is made about the suitability of
9 * this software for any purpose.  It is provided "as is" without
10 * express or implied warranty.
11 */
12
13#include <stdio.h>
14#include <unistd.h>
15#include <stdlib.h>
16#include <string.h>
17#include <signal.h>
[5145235]18#include <time.h>
[7d4fbcd]19#include <sys/param.h>
[700c712]20#include <sys/types.h>
[38cf544c]21#include <sys/stat.h>
[7d4fbcd]22#include "owl.h"
23
[1aee7d9]24static const char fileIdent[] = "$Id$";
25
[b2b0773]26owl_global g;
27
[7d4fbcd]28int main(int argc, char **argv, char **env) {
29  WINDOW *recwin, *sepwin, *typwin, *msgwin;
30  owl_editwin *tw;
31  owl_popwin *pw;
[ced25d1]32  int j, ret, initialsubs, debug, argcsave, followlast;
[d09e5a1]33  int newmsgs, zpendcount, nexttimediff;
[7d4fbcd]34  struct sigaction sigact;
[f1e629d]35  char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE];
[7d4fbcd]36  owl_filter *f;
[bd3f232]37  owl_style *s;
[a15a84f]38  time_t nexttime, now;
39  struct tm *today;
[38cf544c]40  char *dir;
[09489b89]41#ifdef HAVE_LIBZEPHYR
[be0a79f]42  ZNotice_t notice;
[09489b89]43#endif
[7d4fbcd]44
45  argcsave=argc;
46  argvsave=argv;
47  configfile=NULL;
48  tty=NULL;
49  debug=0;
[bd3f232]50  initialsubs=1;
[7d4fbcd]51  if (argc>0) {
52    argv++;
53    argc--;
54  }
55  while (argc>0) {
56    if (!strcmp(argv[0], "-n")) {
57      initialsubs=0;
58      argv++;
59      argc--;
60    } else if (!strcmp(argv[0], "-c")) {
61      if (argc<2) {
62        fprintf(stderr, "Too few arguments to -c\n");
63        usage();
64        exit(1);
65      }
66      configfile=argv[1];
67      argv+=2;
68      argc-=2;
69    } else if (!strcmp(argv[0], "-t")) {
70      if (argc<2) {
71        fprintf(stderr, "Too few arguments to -t\n");
72        usage();
73        exit(1);
74      }
75      tty=argv[1];
76      argv+=2;
77      argc-=2;
78    } else if (!strcmp(argv[0], "-d")) {
79      debug=1;
80      argv++;
81      argc--;
82    } else if (!strcmp(argv[0], "-v")) {
83      printf("This is owl version %s\n", OWL_VERSION_STRING);
84      exit(0);
85    } else {
86      fprintf(stderr, "Uknown argument\n");
87      usage();       
88      exit(1);
89    }
90  }
91
[be0a79f]92#ifdef HAVE_LIBZEPHYR
[7d4fbcd]93  /* zephyr init */
[be0a79f]94  ret=owl_zephyr_initialize();
95  if (ret) {
[7d4fbcd]96    exit(1);
97  }
[be0a79f]98#endif
99 
[7d4fbcd]100  /* signal handler */
101  sigact.sa_handler=sig_handler;
102  sigemptyset(&sigact.sa_mask);
103  sigact.sa_flags=0;
104  sigaction(SIGWINCH, &sigact, NULL);
105  sigaction(SIGALRM, &sigact, NULL);
106
107  /* screen init */
108  sprintf(buff, "TERMINFO=%s", TERMINFO);
109  putenv(buff);
110  initscr();
111  start_color();
[ac70242]112#ifdef HAVE_USE_DEFAULT_COLORS
[7d4fbcd]113  use_default_colors();
[ac70242]114#endif
[7d4fbcd]115  raw();
116  noecho();
117
118  /* define simple color pairs */
119  if (has_colors() && COLOR_PAIRS>=8) {
120    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   -1);
121    init_pair(OWL_COLOR_RED,     COLOR_RED,     -1);
122    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   -1);
123    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  -1);
124    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    -1);
125    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, -1);
126    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    -1);
127    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   -1);
128  }
[38cf544c]129
[bd3f232]130  /* owl global init */
[7d4fbcd]131  owl_global_init(&g);
132  if (debug) owl_global_set_debug_on(&g);
133  owl_global_set_startupargs(&g, argcsave, argvsave);
[09489b89]134#ifdef HAVE_LIBZEPHYR
135  owl_global_set_havezephyr(&g);
136#endif
137  owl_global_set_haveaim(&g);
138 
[38cf544c]139  /* create the owl directory, in case it does not exist */
140  dir=owl_sprintf("%s/%s", owl_global_get_homedir(&g), OWL_CONFIG_DIR);
141  mkdir(dir, S_IRWXU);
142  owl_free(dir);
[5145235]143
[ced25d1]144  /* set the tty, either from the command line, or by figuring it out */
[61e79a9]145  if (tty) {
146    owl_global_set_tty(&g, tty);
147  } else {
148    owl_global_set_tty(&g, owl_util_get_default_tty());
149  }
[7d4fbcd]150
[bd3f232]151  /* setup the built-in styles */
152  s=owl_malloc(sizeof(owl_style));
[f1e629d]153  owl_style_create_internal(s, "default", &owl_stylefunc_default,
154                            "Default message formatting");
[bd3f232]155  owl_global_add_style(&g, s);
156
157  s=owl_malloc(sizeof(owl_style));
[f1e629d]158  owl_style_create_internal(s, "basic", &owl_stylefunc_basic,
159                            "Basic message formatting.");
[bd3f232]160  owl_global_add_style(&g, s);
[ec6ff52]161#if 0
162  s=owl_malloc(sizeof(owl_style));
163  owl_style_create_internal(s, "vt", &owl_stylefunc_vt,
164                            "VT message formatting.");
165  owl_global_add_style(&g, s);
166#endif
[8b32593]167  s=owl_malloc(sizeof(owl_style));
[f1e629d]168  owl_style_create_internal(s, "oneline", &owl_stylefunc_oneline,
169                            "Formats for one-line-per-message");
[8b32593]170  owl_global_add_style(&g, s);
171
[7d4fbcd]172  /* setup the default filters */
[3abf28b]173  /* the personal filter will need to change again when AIM chat's are
174   *  included.  Also, there should be an %aimme% */
[bd3f232]175  f=owl_malloc(sizeof(owl_filter));
[3abf28b]176  owl_filter_init_fromstring(f, "personal", "( type ^zephyr$ "
177                             "and class ^message$ and instance ^personal$ "
178                             "and ( recipient ^%me%$ or sender ^%me%$ ) ) "
[3723f31]179                             "or ( type ^aim$ and login ^none$ )");
[7d4fbcd]180  owl_list_append_element(owl_global_get_filterlist(&g), f);
181
[bd3f232]182  f=owl_malloc(sizeof(owl_filter));
[0c502e9]183  owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )");
[7d4fbcd]184  owl_list_append_element(owl_global_get_filterlist(&g), f);
185
[bd3f232]186  f=owl_malloc(sizeof(owl_filter));
[0236842]187  owl_filter_init_fromstring(f, "ping", "opcode ^ping$");
188  owl_list_append_element(owl_global_get_filterlist(&g), f);
189
[bd3f232]190  f=owl_malloc(sizeof(owl_filter));
[0236842]191  owl_filter_init_fromstring(f, "auto", "opcode ^auto$");
192  owl_list_append_element(owl_global_get_filterlist(&g), f);
193
[bd3f232]194  f=owl_malloc(sizeof(owl_filter));
[0c502e9]195  owl_filter_init_fromstring(f, "login", "not login ^none$");
[0236842]196  owl_list_append_element(owl_global_get_filterlist(&g), f);
197
[bd3f232]198  f=owl_malloc(sizeof(owl_filter));
[7d4fbcd]199  owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$");
200  owl_list_append_element(owl_global_get_filterlist(&g), f);
201
[bd3f232]202  f=owl_malloc(sizeof(owl_filter));
[5a6e6b9]203  owl_filter_init_fromstring(f, "out", "direction ^out$");
204  owl_list_append_element(owl_global_get_filterlist(&g), f);
205
[bd3f232]206  f=owl_malloc(sizeof(owl_filter));
[31e48a3]207  owl_filter_init_fromstring(f, "aim", "type ^aim$");
208  owl_list_append_element(owl_global_get_filterlist(&g), f);
209
[bd3f232]210  f=owl_malloc(sizeof(owl_filter));
[31e48a3]211  owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$");
212  owl_list_append_element(owl_global_get_filterlist(&g), f);
213
[bd3f232]214  f=owl_malloc(sizeof(owl_filter));
[89426ab]215  owl_filter_init_fromstring(f, "none", "false");
216  owl_list_append_element(owl_global_get_filterlist(&g), f);
217
[bd3f232]218  f=owl_malloc(sizeof(owl_filter));
[89426ab]219  owl_filter_init_fromstring(f, "all", "true");
[7d4fbcd]220  owl_list_append_element(owl_global_get_filterlist(&g), f);
221
222  /* set the current view */
[c3ab155]223  owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default"));
[7d4fbcd]224
[96f8e5b]225  /* AIM init */
226  owl_aim_init();
227
[38cf544c]228  /* process the startup file */
[2404c3a]229  owl_function_source(NULL);
[38cf544c]230
[7d4fbcd]231  /* read the config file */
[38cf544c]232  owl_context_set_readconfig(owl_global_get_context(&g));
[f1e629d]233  perlerr=owl_perlconfig_readconfig(configfile);
234  if (perlerr) {
[7d4fbcd]235    endwin();
[f1e629d]236    fprintf(stderr, "\nError parsing configfile: %s\n", perlerr);
[7d4fbcd]237    exit(1);
238  }
[ced25d1]239
[e075479]240  /* if the config defines a formatting function, add 'perl' as a style */
[bd3f232]241  if (owl_global_is_config_format(&g)) {
242    owl_function_debugmsg("Found perl formatting");
243    s=owl_malloc(sizeof(owl_style));
[f1e629d]244    owl_style_create_perl(s, "perl", "owl::_format_msg_legacy_wrap",
245                          "User-defined perl style that calls owl::format_msg"
246                          "with legacy global variable support");
[bd3f232]247    owl_global_add_style(&g, s);
[e075479]248    owl_global_set_default_style(&g, "perl");
[bd3f232]249  }
250
[ced25d1]251  /* execute the startup function in the configfile */
[f1e629d]252  perlout = owl_perlconfig_execute("owl::startup();");
[7d4fbcd]253  if (perlout) owl_free(perlout);
254  owl_function_debugmsg("-- Owl Startup --");
255 
256  /* hold on to the window names for convenience */
257  msgwin=owl_global_get_curs_msgwin(&g);
258  recwin=owl_global_get_curs_recwin(&g);
259  sepwin=owl_global_get_curs_sepwin(&g);
260  typwin=owl_global_get_curs_typwin(&g);
261  tw=owl_global_get_typwin(&g);
262
263  wrefresh(sepwin);
264
265  /* load zephyr subs */
[bd3f232]266  if (initialsubs) {
267    /* load normal subscriptions */
268    ret=owl_zephyr_loadsubs(NULL);
269    if (ret!=-1) {
270      owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
271    }
[7d4fbcd]272
[bd3f232]273    /* load login subscriptions */
274    if (owl_global_is_loginsubs(&g)) {
275      owl_function_loadloginsubs(NULL);
276    }
[7d4fbcd]277  }
278
[f933403]279  /* set the startup and default style, based on userclue and presence of a
280   * formatting function */
[27c3a93]281  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
282    /* the style was set by the user: leave it alone */
283  } else if (owl_global_is_config_format(&g)) {
[f933403]284    owl_global_set_default_style(&g, "perl");
285  } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) {
286    owl_global_set_default_style(&g, "default");
287  } else {
288    owl_global_set_default_style(&g, "basic");
289  }
290
[7d4fbcd]291  /* zlog in if we need to */
292  if (owl_global_is_startuplogin(&g)) {
[31e48a3]293    owl_zephyr_zlog_in();
[7d4fbcd]294  }
295
[f1e629d]296  owl_view_set_style(owl_global_get_current_view(&g), 
297                     owl_global_get_style_by_name(&g, owl_global_get_default_style(&g)));   
[bd3f232]298
[7d4fbcd]299  /* welcome message */
300  strcpy(startupmsg, "-------------------------------------------------------------------------\n");
[f1e629d]301  sprintf(buff,      "Welcome to Owl version %s.  Press 'h' for on-line help. \n", OWL_VERSION_STRING);
[7d4fbcd]302  strcat(startupmsg, buff);
[601a9e0]303  strcat(startupmsg, "                                                                         \n");
[ce7db4d]304  strcat(startupmsg, "If you would like to receive release announcements about owl you can join \n");
[601a9e0]305  strcat(startupmsg, "the owl-users@mit.edu mailing list.  MIT users can add themselves,       \n");
306  strcat(startupmsg, "otherwise send a request to owner-owl-users@mit.edu.               ^ ^   \n");
307  strcat(startupmsg, "                                                                   OvO   \n");
308  strcat(startupmsg, "Please report any bugs or suggestions to bug-owl@mit.edu          (   )  \n");
309  strcat(startupmsg, "-------------------------------------------------------------------m-m---\n");
[7d4fbcd]310  owl_function_adminmsg("", startupmsg);
311  sepbar(NULL);
312 
313  owl_context_set_interactive(owl_global_get_context(&g));
314
[a15a84f]315  nexttimediff=10;
[4b464a4]316  nexttime=time(NULL);
317
[7d4fbcd]318  /* main loop */
319  while (1) {
320
321    /* if a resize has been scheduled, deal with it */
322    owl_global_resize(&g, 0, 0);
323
324    /* these are here in case a resize changes the windows */
325    msgwin=owl_global_get_curs_msgwin(&g);
326    recwin=owl_global_get_curs_recwin(&g);
327    sepwin=owl_global_get_curs_sepwin(&g);
328    typwin=owl_global_get_curs_typwin(&g);
329
330    followlast=owl_global_should_followlast(&g);
[5789230]331   
[a352335c]332    /* Do AIM stuff */
333    if (owl_global_is_doaimevents(&g)) {
[5789230]334      owl_aim_process_events();
[de03334]335
[a352335c]336      if (owl_global_is_aimloggedin(&g)) {
337        if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) {
[f4d0975]338          /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */
[a352335c]339          owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g));
340        }
[de03334]341      }
[5789230]342    }
343
[4b464a4]344    /* little hack */
[a15a84f]345    now=time(NULL);
346    today=localtime(&now);
347    if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) {
[4b464a4]348      if (time(NULL)>nexttime) {
349        if (nexttimediff==1) {
[a15a84f]350          nexttimediff=10;
[4b464a4]351        } else {
352          nexttimediff=1;
353        }
354        nexttime+=nexttimediff;
355        owl_hack_animate();
356      }
357    }
358
[aac889a]359    /* Grab incoming messages. */
[d09e5a1]360    newmsgs=0;
[ced25d1]361    zpendcount=0;
[be0a79f]362    while(owl_zephyr_zpending() || owl_global_messagequeue_pending(&g)) {
[09489b89]363#ifdef HAVE_LIBZEPHYR
[7d4fbcd]364      struct sockaddr_in from;
[09489b89]365#endif
[e6449bc]366      owl_message *m=NULL;
[ecd5dc5]367      owl_filter *f;
[09489b89]368
[bd3f232]369      /* grab the new message, stick it in 'm' */
[be0a79f]370      if (owl_zephyr_zpending()) {
[09489b89]371#ifdef HAVE_LIBZEPHYR
[d09e5a1]372        /* grab a zephyr notice, but if we've done 20 without stopping,
373           take a break to process keystrokes etc. */
374        if (zpendcount>20) break;
375        ZReceiveNotice(&notice, &from);
376        zpendcount++;
377       
378        /* is this an ack from a zephyr we sent? */
379        if (owl_zephyr_notice_is_ack(&notice)) {
380          owl_zephyr_handle_ack(&notice);
381          continue;
382        }
383       
384        /* if it's a ping and we're not viewing pings then skip it */
385        if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
386          continue;
387        }
[7d4fbcd]388
[d09e5a1]389        /* create the new message */
390        m=owl_malloc(sizeof(owl_message));
391        owl_message_create_from_znotice(m, &notice);
[09489b89]392#endif
[d09e5a1]393      } else if (owl_global_messagequeue_pending(&g)) {
394        m=owl_global_messageuque_popmsg(&g);
[7d4fbcd]395      }
396     
[bd3f232]397      /* if this message it on the puntlist, nuke it and continue */
[7d4fbcd]398      if (owl_global_message_is_puntable(&g, m)) {
399        owl_message_free(m);
400        continue;
401      }
402
403      /* otherwise add it to the global list */
404      owl_messagelist_append_element(owl_global_get_msglist(&g), m);
[d09e5a1]405      newmsgs=1;
[7d4fbcd]406
407      /* let the config know the new message has been received */
[f1e629d]408      owl_perlconfig_getmsg(m, 0, NULL);
[7d4fbcd]409
410      /* add it to any necessary views; right now there's only the current view */
411      owl_view_consider_message(owl_global_get_current_view(&g), m);
412
413      /* do we need to autoreply? */
[aac889a]414      if (owl_message_is_type_zephyr(m) && owl_global_is_zaway(&g)) {
[7d4fbcd]415        owl_zephyr_zaway(m);
416      }
417
418      /* ring the bell if it's a personal */
[3abf28b]419      if (owl_global_is_personalbell(&g) &&
[5789230]420          !owl_message_is_loginout(m) &&
[dafd919]421          !owl_message_is_mail(m) &&
[5789230]422          owl_message_is_private(m)) {
[7d4fbcd]423        owl_function_beep();
424      }
425
[ecd5dc5]426      /* if it matches the alert filter, do the alert action */
427      f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
428      if (f && owl_filter_message_match(f, m)) {
429        owl_function_command(owl_global_get_alert_action(&g));
430      }
431
[7d4fbcd]432      /* check for burning ears message */
433      /* this is an unsupported feature */
434      if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) {
[1c6c4d3]435        char *buff;
436        buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m));
[7d4fbcd]437        owl_function_adminmsg(buff, "");
[1c6c4d3]438        owl_free(buff);
[7d4fbcd]439        owl_function_beep();
440      }
441
[d09e5a1]442      /* log the message if we need to */
[7d4fbcd]443      if (owl_global_is_logging(&g) || owl_global_is_classlogging(&g)) {
444        owl_log_incoming(m);
445      }
446    }
447
448    /* follow the last message if we're supposed to */
[d09e5a1]449    if (newmsgs && followlast) {
[7d4fbcd]450      owl_function_lastmsg_noredisplay();
451    }
[700c712]452
[ced25d1]453    /* do the newmsgproc thing */
[d09e5a1]454    if (newmsgs) {
[8f44c6b]455      owl_function_do_newmsgproc();
[700c712]456    }
[7d4fbcd]457   
458    /* redisplay if necessary */
[d09e5a1]459    /* this should be optimized to not run if the new messages won't be displayed */
460    if (newmsgs) {
[7d4fbcd]461      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
462      sepbar(NULL);
463      if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
464        owl_popwin_refresh(owl_global_get_popwin(&g));
465        /* TODO: this is a broken kludge */
466        if (owl_global_get_viewwin(&g)) {
467          owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
468        }
469      }
470      owl_global_set_needrefresh(&g);
471    }
472
473    /* if a popwin just came up, refresh it */
474    pw=owl_global_get_popwin(&g);
475    if (owl_popwin_is_active(pw) && owl_popwin_needs_first_refresh(pw)) {
476      owl_popwin_refresh(pw);
477      owl_popwin_no_needs_first_refresh(pw);
478      owl_global_set_needrefresh(&g);
479      /* TODO: this is a broken kludge */
480      if (owl_global_get_viewwin(&g)) {
481        owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
482      }
483    }
484
485    /* update the terminal if we need to */
486    if (owl_global_is_needrefresh(&g)) {
487      /* leave the cursor in the appropriate window */
488      if (owl_global_is_typwin_active(&g)) {
489        owl_function_set_cursor(typwin);
490      } else {
491        owl_function_set_cursor(sepwin);
492      }
493      doupdate();
494      owl_global_set_noneedrefresh(&g);
495    }
496
[bd3f232]497    /* Handle all keypresses.  If no key has been pressed, sleep for a
498     * little bit, but otherwise do not.  This lets input be grabbed
499     * as quickly as possbile */
[7d4fbcd]500    j=wgetch(typwin);
501    if (j==ERR) {
502      usleep(10);
503      continue;
504    }
505    /* find and activate the current keymap.
506     * TODO: this should really get fixed by activating
507     * keymaps as we switch between windows...
508     */
509    if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) {
510      owl_context_set_popless(owl_global_get_context(&g), 
511                              owl_global_get_viewwin(&g));
512      owl_function_activate_keymap("popless");
513    } else if (owl_global_is_typwin_active(&g) 
514               && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) {
[cf83b7a]515      /*
[7d4fbcd]516      owl_context_set_editline(owl_global_get_context(&g), tw);
517      owl_function_activate_keymap("editline");
[cf83b7a]518      */
[7d4fbcd]519    } else if (owl_global_is_typwin_active(&g) 
520               && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) {
521      owl_context_set_editmulti(owl_global_get_context(&g), tw);
522      owl_function_activate_keymap("editmulti");
523    } else {
524      owl_context_set_recv(owl_global_get_context(&g));
525      owl_function_activate_keymap("recv");
526    }
527    /* now actually handle the keypress */
528    ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j);
529    if (ret!=0 && ret!=1) {
530      owl_function_makemsg("Unable to handle keypress");
531    }
532  }
533}
534
535void sig_handler(int sig) {
536  if (sig==SIGWINCH) {
[bd3f232]537    /* we can't inturrupt a malloc here, so it just sets a flag
538     * schedulding a resize for later
539     */
[7d4fbcd]540    owl_function_resize();
541  }
542}
543
544void usage() {
[e7cc1c3]545  fprintf(stderr, "Owl version %s\n", OWL_VERSION_STRING);
546  fprintf(stderr, "Usage: owl [-n] [-d] [-v] [-h] [-c <configfile>] [-t <ttyname>]\n");
547  fprintf(stderr, "  -n      don't load zephyr subscriptions\n");
548  fprintf(stderr, "  -d      enable debugging\n");
549  fprintf(stderr, "  -v      print the Owl version number and exit\n");
550  fprintf(stderr, "  -h      print this help message\n");
551  fprintf(stderr, "  -c      specify an alternate config file\n");
552  fprintf(stderr, "  -t      set the tty name\n");
[7d4fbcd]553}
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