source: owl.c @ 11a7c6a

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since 11a7c6a was e8b95f8, checked in by Erik Nygren <nygren@mit.edu>, 18 years ago
portability fix for solaris. may require ./configure
  • Property mode set to 100644
File size: 18.8 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
[2a2bb60]24#if OWL_STDERR_REDIR
[e8b95f8]25#ifdef HAVE_SYS_IOCTL_H
[2a2bb60]26#include <sys/ioctl.h>
[e8b95f8]27#endif
28#ifdef HAVE_SYS_FILIO_H
29#include <sys/filio.h>
30#endif
[2a2bb60]31int stderr_replace(void);
32void stderr_redirect(int rfd);
33#endif
34
[1aee7d9]35static const char fileIdent[] = "$Id$";
36
[b2b0773]37owl_global g;
38
[7d4fbcd]39int main(int argc, char **argv, char **env) {
40  WINDOW *recwin, *sepwin, *typwin, *msgwin;
41  owl_editwin *tw;
42  owl_popwin *pw;
[ced25d1]43  int j, ret, initialsubs, debug, argcsave, followlast;
[d09e5a1]44  int newmsgs, zpendcount, nexttimediff;
[7d4fbcd]45  struct sigaction sigact;
[f1e629d]46  char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE];
[7d4fbcd]47  owl_filter *f;
[bd3f232]48  owl_style *s;
[a15a84f]49  time_t nexttime, now;
50  struct tm *today;
[38cf544c]51  char *dir;
[09489b89]52#ifdef HAVE_LIBZEPHYR
[be0a79f]53  ZNotice_t notice;
[09489b89]54#endif
[2a2bb60]55#if OWL_STDERR_REDIR
56  int newstderr;
57#endif
[7d4fbcd]58
59  argcsave=argc;
60  argvsave=argv;
61  configfile=NULL;
62  tty=NULL;
63  debug=0;
[bd3f232]64  initialsubs=1;
[7d4fbcd]65  if (argc>0) {
66    argv++;
67    argc--;
68  }
69  while (argc>0) {
70    if (!strcmp(argv[0], "-n")) {
71      initialsubs=0;
72      argv++;
73      argc--;
74    } else if (!strcmp(argv[0], "-c")) {
75      if (argc<2) {
76        fprintf(stderr, "Too few arguments to -c\n");
77        usage();
78        exit(1);
79      }
80      configfile=argv[1];
81      argv+=2;
82      argc-=2;
83    } else if (!strcmp(argv[0], "-t")) {
84      if (argc<2) {
85        fprintf(stderr, "Too few arguments to -t\n");
86        usage();
87        exit(1);
88      }
89      tty=argv[1];
90      argv+=2;
91      argc-=2;
92    } else if (!strcmp(argv[0], "-d")) {
93      debug=1;
94      argv++;
95      argc--;
96    } else if (!strcmp(argv[0], "-v")) {
97      printf("This is owl version %s\n", OWL_VERSION_STRING);
98      exit(0);
99    } else {
100      fprintf(stderr, "Uknown argument\n");
101      usage();       
102      exit(1);
103    }
104  }
105
[be0a79f]106#ifdef HAVE_LIBZEPHYR
[7d4fbcd]107  /* zephyr init */
[be0a79f]108  ret=owl_zephyr_initialize();
109  if (ret) {
[7d4fbcd]110    exit(1);
111  }
[be0a79f]112#endif
113 
[7d4fbcd]114  /* signal handler */
115  sigact.sa_handler=sig_handler;
116  sigemptyset(&sigact.sa_mask);
117  sigact.sa_flags=0;
118  sigaction(SIGWINCH, &sigact, NULL);
119  sigaction(SIGALRM, &sigact, NULL);
120
121  /* screen init */
122  sprintf(buff, "TERMINFO=%s", TERMINFO);
123  putenv(buff);
124  initscr();
125  start_color();
[ac70242]126#ifdef HAVE_USE_DEFAULT_COLORS
[7d4fbcd]127  use_default_colors();
[ac70242]128#endif
[7d4fbcd]129  raw();
130  noecho();
131
132  /* define simple color pairs */
133  if (has_colors() && COLOR_PAIRS>=8) {
134    init_pair(OWL_COLOR_BLACK,   COLOR_BLACK,   -1);
135    init_pair(OWL_COLOR_RED,     COLOR_RED,     -1);
136    init_pair(OWL_COLOR_GREEN,   COLOR_GREEN,   -1);
137    init_pair(OWL_COLOR_YELLOW,  COLOR_YELLOW,  -1);
138    init_pair(OWL_COLOR_BLUE,    COLOR_BLUE,    -1);
139    init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, -1);
140    init_pair(OWL_COLOR_CYAN,    COLOR_CYAN,    -1);
141    init_pair(OWL_COLOR_WHITE,   COLOR_WHITE,   -1);
142  }
[38cf544c]143
[bd3f232]144  /* owl global init */
[7d4fbcd]145  owl_global_init(&g);
146  if (debug) owl_global_set_debug_on(&g);
147  owl_global_set_startupargs(&g, argcsave, argvsave);
[09489b89]148#ifdef HAVE_LIBZEPHYR
149  owl_global_set_havezephyr(&g);
150#endif
151  owl_global_set_haveaim(&g);
[2a2bb60]152
153#if OWL_STDERR_REDIR
154  /* Do this only after we've started curses up... */ 
155  newstderr = stderr_replace();
156#endif   
157
[09489b89]158 
[38cf544c]159  /* create the owl directory, in case it does not exist */
160  dir=owl_sprintf("%s/%s", owl_global_get_homedir(&g), OWL_CONFIG_DIR);
161  mkdir(dir, S_IRWXU);
162  owl_free(dir);
[5145235]163
[ced25d1]164  /* set the tty, either from the command line, or by figuring it out */
[61e79a9]165  if (tty) {
166    owl_global_set_tty(&g, tty);
167  } else {
168    owl_global_set_tty(&g, owl_util_get_default_tty());
169  }
[7d4fbcd]170
[bd3f232]171  /* setup the built-in styles */
172  s=owl_malloc(sizeof(owl_style));
[f1e629d]173  owl_style_create_internal(s, "default", &owl_stylefunc_default,
174                            "Default message formatting");
[bd3f232]175  owl_global_add_style(&g, s);
176
177  s=owl_malloc(sizeof(owl_style));
[f1e629d]178  owl_style_create_internal(s, "basic", &owl_stylefunc_basic,
179                            "Basic message formatting.");
[bd3f232]180  owl_global_add_style(&g, s);
[ec6ff52]181#if 0
182  s=owl_malloc(sizeof(owl_style));
183  owl_style_create_internal(s, "vt", &owl_stylefunc_vt,
184                            "VT message formatting.");
185  owl_global_add_style(&g, s);
186#endif
[8b32593]187  s=owl_malloc(sizeof(owl_style));
[f1e629d]188  owl_style_create_internal(s, "oneline", &owl_stylefunc_oneline,
189                            "Formats for one-line-per-message");
[8b32593]190  owl_global_add_style(&g, s);
191
[7d4fbcd]192  /* setup the default filters */
[3abf28b]193  /* the personal filter will need to change again when AIM chat's are
194   *  included.  Also, there should be an %aimme% */
[bd3f232]195  f=owl_malloc(sizeof(owl_filter));
[3abf28b]196  owl_filter_init_fromstring(f, "personal", "( type ^zephyr$ "
197                             "and class ^message$ and instance ^personal$ "
198                             "and ( recipient ^%me%$ or sender ^%me%$ ) ) "
[3723f31]199                             "or ( type ^aim$ and login ^none$ )");
[7d4fbcd]200  owl_list_append_element(owl_global_get_filterlist(&g), f);
201
[bd3f232]202  f=owl_malloc(sizeof(owl_filter));
[0c502e9]203  owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )");
[7d4fbcd]204  owl_list_append_element(owl_global_get_filterlist(&g), f);
205
[bd3f232]206  f=owl_malloc(sizeof(owl_filter));
[0236842]207  owl_filter_init_fromstring(f, "ping", "opcode ^ping$");
208  owl_list_append_element(owl_global_get_filterlist(&g), f);
209
[bd3f232]210  f=owl_malloc(sizeof(owl_filter));
[0236842]211  owl_filter_init_fromstring(f, "auto", "opcode ^auto$");
212  owl_list_append_element(owl_global_get_filterlist(&g), f);
213
[bd3f232]214  f=owl_malloc(sizeof(owl_filter));
[0c502e9]215  owl_filter_init_fromstring(f, "login", "not login ^none$");
[0236842]216  owl_list_append_element(owl_global_get_filterlist(&g), f);
217
[bd3f232]218  f=owl_malloc(sizeof(owl_filter));
[7d4fbcd]219  owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$");
220  owl_list_append_element(owl_global_get_filterlist(&g), f);
221
[bd3f232]222  f=owl_malloc(sizeof(owl_filter));
[5a6e6b9]223  owl_filter_init_fromstring(f, "out", "direction ^out$");
224  owl_list_append_element(owl_global_get_filterlist(&g), f);
225
[bd3f232]226  f=owl_malloc(sizeof(owl_filter));
[31e48a3]227  owl_filter_init_fromstring(f, "aim", "type ^aim$");
228  owl_list_append_element(owl_global_get_filterlist(&g), f);
229
[bd3f232]230  f=owl_malloc(sizeof(owl_filter));
[31e48a3]231  owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$");
232  owl_list_append_element(owl_global_get_filterlist(&g), f);
233
[bd3f232]234  f=owl_malloc(sizeof(owl_filter));
[89426ab]235  owl_filter_init_fromstring(f, "none", "false");
236  owl_list_append_element(owl_global_get_filterlist(&g), f);
237
[bd3f232]238  f=owl_malloc(sizeof(owl_filter));
[89426ab]239  owl_filter_init_fromstring(f, "all", "true");
[7d4fbcd]240  owl_list_append_element(owl_global_get_filterlist(&g), f);
241
242  /* set the current view */
[c3ab155]243  owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default"));
[7d4fbcd]244
[96f8e5b]245  /* AIM init */
246  owl_aim_init();
247
[38cf544c]248  /* process the startup file */
[2404c3a]249  owl_function_source(NULL);
[38cf544c]250
[7d4fbcd]251  /* read the config file */
[38cf544c]252  owl_context_set_readconfig(owl_global_get_context(&g));
[f1e629d]253  perlerr=owl_perlconfig_readconfig(configfile);
254  if (perlerr) {
[7d4fbcd]255    endwin();
[f1e629d]256    fprintf(stderr, "\nError parsing configfile: %s\n", perlerr);
[7d4fbcd]257    exit(1);
258  }
[ced25d1]259
[e075479]260  /* if the config defines a formatting function, add 'perl' as a style */
[bd3f232]261  if (owl_global_is_config_format(&g)) {
262    owl_function_debugmsg("Found perl formatting");
263    s=owl_malloc(sizeof(owl_style));
[f1e629d]264    owl_style_create_perl(s, "perl", "owl::_format_msg_legacy_wrap",
265                          "User-defined perl style that calls owl::format_msg"
266                          "with legacy global variable support");
[bd3f232]267    owl_global_add_style(&g, s);
[e075479]268    owl_global_set_default_style(&g, "perl");
[bd3f232]269  }
270
[ced25d1]271  /* execute the startup function in the configfile */
[f1e629d]272  perlout = owl_perlconfig_execute("owl::startup();");
[7d4fbcd]273  if (perlout) owl_free(perlout);
274  owl_function_debugmsg("-- Owl Startup --");
275 
276  /* hold on to the window names for convenience */
277  msgwin=owl_global_get_curs_msgwin(&g);
278  recwin=owl_global_get_curs_recwin(&g);
279  sepwin=owl_global_get_curs_sepwin(&g);
280  typwin=owl_global_get_curs_typwin(&g);
281  tw=owl_global_get_typwin(&g);
282
283  wrefresh(sepwin);
284
285  /* load zephyr subs */
[bd3f232]286  if (initialsubs) {
287    /* load normal subscriptions */
288    ret=owl_zephyr_loadsubs(NULL);
289    if (ret!=-1) {
290      owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES);
291    }
[7d4fbcd]292
[bd3f232]293    /* load login subscriptions */
294    if (owl_global_is_loginsubs(&g)) {
295      owl_function_loadloginsubs(NULL);
296    }
[7d4fbcd]297  }
298
[f933403]299  /* set the startup and default style, based on userclue and presence of a
300   * formatting function */
[27c3a93]301  if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) {
302    /* the style was set by the user: leave it alone */
303  } else if (owl_global_is_config_format(&g)) {
[f933403]304    owl_global_set_default_style(&g, "perl");
305  } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) {
306    owl_global_set_default_style(&g, "default");
307  } else {
308    owl_global_set_default_style(&g, "basic");
309  }
310
[7d4fbcd]311  /* zlog in if we need to */
312  if (owl_global_is_startuplogin(&g)) {
[31e48a3]313    owl_zephyr_zlog_in();
[7d4fbcd]314  }
315
[f1e629d]316  owl_view_set_style(owl_global_get_current_view(&g), 
317                     owl_global_get_style_by_name(&g, owl_global_get_default_style(&g)));   
[bd3f232]318
[7d4fbcd]319  /* welcome message */
320  strcpy(startupmsg, "-------------------------------------------------------------------------\n");
[f1e629d]321  sprintf(buff,      "Welcome to Owl version %s.  Press 'h' for on-line help. \n", OWL_VERSION_STRING);
[7d4fbcd]322  strcat(startupmsg, buff);
[601a9e0]323  strcat(startupmsg, "                                                                         \n");
[ce7db4d]324  strcat(startupmsg, "If you would like to receive release announcements about owl you can join \n");
[601a9e0]325  strcat(startupmsg, "the owl-users@mit.edu mailing list.  MIT users can add themselves,       \n");
326  strcat(startupmsg, "otherwise send a request to owner-owl-users@mit.edu.               ^ ^   \n");
327  strcat(startupmsg, "                                                                   OvO   \n");
328  strcat(startupmsg, "Please report any bugs or suggestions to bug-owl@mit.edu          (   )  \n");
329  strcat(startupmsg, "-------------------------------------------------------------------m-m---\n");
[7d4fbcd]330  owl_function_adminmsg("", startupmsg);
331  sepbar(NULL);
332 
333  owl_context_set_interactive(owl_global_get_context(&g));
334
[a15a84f]335  nexttimediff=10;
[4b464a4]336  nexttime=time(NULL);
337
[7d4fbcd]338  /* main loop */
339  while (1) {
340
341    /* if a resize has been scheduled, deal with it */
342    owl_global_resize(&g, 0, 0);
343
344    /* these are here in case a resize changes the windows */
345    msgwin=owl_global_get_curs_msgwin(&g);
346    recwin=owl_global_get_curs_recwin(&g);
347    sepwin=owl_global_get_curs_sepwin(&g);
348    typwin=owl_global_get_curs_typwin(&g);
349
350    followlast=owl_global_should_followlast(&g);
[5789230]351   
[a352335c]352    /* Do AIM stuff */
353    if (owl_global_is_doaimevents(&g)) {
[5789230]354      owl_aim_process_events();
[de03334]355
[a352335c]356      if (owl_global_is_aimloggedin(&g)) {
357        if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) {
[f4d0975]358          /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */
[a352335c]359          owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g));
360        }
[de03334]361      }
[5789230]362    }
363
[4b464a4]364    /* little hack */
[a15a84f]365    now=time(NULL);
366    today=localtime(&now);
367    if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) {
[4b464a4]368      if (time(NULL)>nexttime) {
369        if (nexttimediff==1) {
[a15a84f]370          nexttimediff=10;
[4b464a4]371        } else {
372          nexttimediff=1;
373        }
374        nexttime+=nexttimediff;
375        owl_hack_animate();
376      }
377    }
378
[aac889a]379    /* Grab incoming messages. */
[d09e5a1]380    newmsgs=0;
[ced25d1]381    zpendcount=0;
[be0a79f]382    while(owl_zephyr_zpending() || owl_global_messagequeue_pending(&g)) {
[09489b89]383#ifdef HAVE_LIBZEPHYR
[7d4fbcd]384      struct sockaddr_in from;
[09489b89]385#endif
[e6449bc]386      owl_message *m=NULL;
[ecd5dc5]387      owl_filter *f;
[09489b89]388
[bd3f232]389      /* grab the new message, stick it in 'm' */
[be0a79f]390      if (owl_zephyr_zpending()) {
[09489b89]391#ifdef HAVE_LIBZEPHYR
[d09e5a1]392        /* grab a zephyr notice, but if we've done 20 without stopping,
393           take a break to process keystrokes etc. */
394        if (zpendcount>20) break;
395        ZReceiveNotice(&notice, &from);
396        zpendcount++;
397       
398        /* is this an ack from a zephyr we sent? */
399        if (owl_zephyr_notice_is_ack(&notice)) {
400          owl_zephyr_handle_ack(&notice);
401          continue;
402        }
403       
404        /* if it's a ping and we're not viewing pings then skip it */
405        if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) {
406          continue;
407        }
[7d4fbcd]408
[d09e5a1]409        /* create the new message */
410        m=owl_malloc(sizeof(owl_message));
411        owl_message_create_from_znotice(m, &notice);
[09489b89]412#endif
[d09e5a1]413      } else if (owl_global_messagequeue_pending(&g)) {
414        m=owl_global_messageuque_popmsg(&g);
[7d4fbcd]415      }
416     
[bd3f232]417      /* if this message it on the puntlist, nuke it and continue */
[7d4fbcd]418      if (owl_global_message_is_puntable(&g, m)) {
419        owl_message_free(m);
420        continue;
421      }
422
423      /* otherwise add it to the global list */
424      owl_messagelist_append_element(owl_global_get_msglist(&g), m);
[d09e5a1]425      newmsgs=1;
[7d4fbcd]426
427      /* let the config know the new message has been received */
[f1e629d]428      owl_perlconfig_getmsg(m, 0, NULL);
[7d4fbcd]429
430      /* add it to any necessary views; right now there's only the current view */
431      owl_view_consider_message(owl_global_get_current_view(&g), m);
432
433      /* do we need to autoreply? */
[aac889a]434      if (owl_message_is_type_zephyr(m) && owl_global_is_zaway(&g)) {
[7d4fbcd]435        owl_zephyr_zaway(m);
436      }
437
438      /* ring the bell if it's a personal */
[3abf28b]439      if (owl_global_is_personalbell(&g) &&
[5789230]440          !owl_message_is_loginout(m) &&
[dafd919]441          !owl_message_is_mail(m) &&
[5789230]442          owl_message_is_private(m)) {
[7d4fbcd]443        owl_function_beep();
444      }
445
[ecd5dc5]446      /* if it matches the alert filter, do the alert action */
447      f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g));
448      if (f && owl_filter_message_match(f, m)) {
449        owl_function_command(owl_global_get_alert_action(&g));
450      }
451
[7d4fbcd]452      /* check for burning ears message */
453      /* this is an unsupported feature */
454      if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) {
[1c6c4d3]455        char *buff;
456        buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m));
[7d4fbcd]457        owl_function_adminmsg(buff, "");
[1c6c4d3]458        owl_free(buff);
[7d4fbcd]459        owl_function_beep();
460      }
461
[d09e5a1]462      /* log the message if we need to */
[7d4fbcd]463      if (owl_global_is_logging(&g) || owl_global_is_classlogging(&g)) {
464        owl_log_incoming(m);
465      }
466    }
467
468    /* follow the last message if we're supposed to */
[d09e5a1]469    if (newmsgs && followlast) {
[7d4fbcd]470      owl_function_lastmsg_noredisplay();
471    }
[700c712]472
[ced25d1]473    /* do the newmsgproc thing */
[d09e5a1]474    if (newmsgs) {
[8f44c6b]475      owl_function_do_newmsgproc();
[700c712]476    }
[7d4fbcd]477   
478    /* redisplay if necessary */
[d09e5a1]479    /* this should be optimized to not run if the new messages won't be displayed */
480    if (newmsgs) {
[7d4fbcd]481      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
482      sepbar(NULL);
483      if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
484        owl_popwin_refresh(owl_global_get_popwin(&g));
485        /* TODO: this is a broken kludge */
486        if (owl_global_get_viewwin(&g)) {
487          owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
488        }
489      }
490      owl_global_set_needrefresh(&g);
491    }
492
493    /* if a popwin just came up, refresh it */
494    pw=owl_global_get_popwin(&g);
495    if (owl_popwin_is_active(pw) && owl_popwin_needs_first_refresh(pw)) {
496      owl_popwin_refresh(pw);
497      owl_popwin_no_needs_first_refresh(pw);
498      owl_global_set_needrefresh(&g);
499      /* TODO: this is a broken kludge */
500      if (owl_global_get_viewwin(&g)) {
501        owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0);
502      }
503    }
504
505    /* update the terminal if we need to */
506    if (owl_global_is_needrefresh(&g)) {
507      /* leave the cursor in the appropriate window */
508      if (owl_global_is_typwin_active(&g)) {
509        owl_function_set_cursor(typwin);
510      } else {
511        owl_function_set_cursor(sepwin);
512      }
513      doupdate();
514      owl_global_set_noneedrefresh(&g);
515    }
516
[bd3f232]517    /* Handle all keypresses.  If no key has been pressed, sleep for a
518     * little bit, but otherwise do not.  This lets input be grabbed
519     * as quickly as possbile */
[7d4fbcd]520    j=wgetch(typwin);
521    if (j==ERR) {
522      usleep(10);
523      continue;
524    }
525    /* find and activate the current keymap.
526     * TODO: this should really get fixed by activating
527     * keymaps as we switch between windows...
528     */
529    if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) {
530      owl_context_set_popless(owl_global_get_context(&g), 
531                              owl_global_get_viewwin(&g));
532      owl_function_activate_keymap("popless");
533    } else if (owl_global_is_typwin_active(&g) 
534               && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) {
[cf83b7a]535      /*
[7d4fbcd]536      owl_context_set_editline(owl_global_get_context(&g), tw);
537      owl_function_activate_keymap("editline");
[cf83b7a]538      */
[7d4fbcd]539    } else if (owl_global_is_typwin_active(&g) 
540               && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) {
541      owl_context_set_editmulti(owl_global_get_context(&g), tw);
542      owl_function_activate_keymap("editmulti");
543    } else {
544      owl_context_set_recv(owl_global_get_context(&g));
545      owl_function_activate_keymap("recv");
546    }
547    /* now actually handle the keypress */
548    ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j);
549    if (ret!=0 && ret!=1) {
550      owl_function_makemsg("Unable to handle keypress");
551    }
[2a2bb60]552
553#if OWL_STDERR_REDIR
554    stderr_redirect(newstderr);
555#endif   
556
[7d4fbcd]557  }
558}
559
560void sig_handler(int sig) {
561  if (sig==SIGWINCH) {
[bd3f232]562    /* we can't inturrupt a malloc here, so it just sets a flag
563     * schedulding a resize for later
564     */
[7d4fbcd]565    owl_function_resize();
566  }
567}
568
569void usage() {
[e7cc1c3]570  fprintf(stderr, "Owl version %s\n", OWL_VERSION_STRING);
571  fprintf(stderr, "Usage: owl [-n] [-d] [-v] [-h] [-c <configfile>] [-t <ttyname>]\n");
572  fprintf(stderr, "  -n      don't load zephyr subscriptions\n");
573  fprintf(stderr, "  -d      enable debugging\n");
574  fprintf(stderr, "  -v      print the Owl version number and exit\n");
575  fprintf(stderr, "  -h      print this help message\n");
576  fprintf(stderr, "  -c      specify an alternate config file\n");
577  fprintf(stderr, "  -t      set the tty name\n");
[7d4fbcd]578}
[2a2bb60]579
580
581
582#if OWL_STDERR_REDIR
583
584/* Replaces stderr with a pipe so that we can read from it.
585 * Returns the fd of the pipe from which stderr can be read. */
586int stderr_replace(void) {
587  int pipefds[2];
588  if (0 != pipe(pipefds)) {
589    perror("pipe");
590    owl_function_debugmsg("stderr_replace: pipe FAILED\n");
591    return -1;
592  }
593    owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]);
594  if (-1 == dup2(pipefds[1], 2 /*stderr*/)) {
595    owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno));
596    perror("dup2");
597    return -1;
598  }
599  return pipefds[0];
600}
601
602/* Sends stderr (read from rfd) messages to a file */
603void stderr_redirect(int rfd) {
604  int navail, bread;
605  char *buf;
606  /*owl_function_debugmsg("stderr_redirect: called with rfd=%d\n", rfd);*/
607  if (rfd<0) return;
608  if (-1 == ioctl(rfd, FIONREAD, (void*)&navail)) {
609    return;
610  }
611  /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/
612  if (navail<=0) return;
613  if (navail>256) { navail = 256; }
614  buf = owl_malloc(navail+1);
615  bread = read(rfd, buf, navail);
616  if (buf[navail-1] != '\0') {
617    buf[navail] = '\0';
618  }
619  owl_function_error("Err: %s", buf);
620  owl_free(buf);
621}
622
623#endif /* OWL_STDERR_REDIR */
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