source: functions.c @ 61abb18

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <netinet/in.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <errno.h>
#include <signal.h>
#include "owl.h"

static const char fileIdent[] = "$Id$";

void owl_function_noop(void)
{
  return;
}

char *owl_function_command(char *cmdbuff)
{
  owl_function_debugmsg("executing command: %s", cmdbuff);
  return owl_cmddict_execute(owl_global_get_cmddict(&g), 
                             owl_global_get_context(&g), cmdbuff);
}

void owl_function_command_norv(char *cmdbuff)
{
  char *rv;
  rv=owl_function_command(cmdbuff);
  if (rv) owl_free(rv);
}

void owl_function_command_alias(char *alias_from, char *alias_to)
{
  owl_cmddict_add_alias(owl_global_get_cmddict(&g), alias_from, alias_to);
}

owl_cmd *owl_function_get_cmd(char *name)
{
  return owl_cmddict_find(owl_global_get_cmddict(&g), name);
}

void owl_function_show_commands()
{
  owl_list l;
  owl_fmtext fm;

  owl_fmtext_init_null(&fm);
  owl_fmtext_append_bold(&fm, "Commands:  ");
  owl_fmtext_append_normal(&fm, "(use 'show command <name>' for details)\n");
  owl_cmddict_get_names(owl_global_get_cmddict(&g), &l);
  owl_fmtext_append_list(&fm, &l, "\n", owl_function_cmd_describe);
  owl_fmtext_append_normal(&fm, "\n");
  owl_function_popless_fmtext(&fm);
  owl_cmddict_namelist_free(&l);
  owl_fmtext_free(&fm);
}

void owl_function_show_view(char *viewname)
{
  owl_view *v;
  owl_fmtext fm;

  /* we only have the one view right now */
  v=owl_global_get_current_view(&g);
  if (viewname && strcmp(viewname, owl_view_get_name(v))) {
    owl_function_error("No view named '%s'", viewname);
    return;
  }

  owl_fmtext_init_null(&fm);
  owl_view_to_fmtext(v, &fm);
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_show_styles() {
  owl_list l;
  owl_fmtext fm;

  owl_fmtext_init_null(&fm);
  owl_fmtext_append_bold(&fm, "Styles:\n");
  owl_global_get_style_names(&g, &l);
  owl_fmtext_append_list(&fm, &l, "\n", owl_function_style_describe);
  owl_fmtext_append_normal(&fm, "\n");
  owl_function_popless_fmtext(&fm);
  owl_list_free_all(&l, owl_free);
  owl_fmtext_free(&fm);
}

char *owl_function_style_describe(void *name) {
  char *desc, *s;
  owl_style *style;
  style = owl_global_get_style_by_name(&g, name);
  if (style) {
    desc = owl_style_get_description(style);
  } else {
    desc = "???";
  }
  s = owl_sprintf("%-20s - %s%s", name, 
                  0==owl_style_validate(style)?"":"[INVALID] ",
                  desc);
  return s;
}

char *owl_function_cmd_describe(void *name)
{
  owl_cmd *cmd = owl_cmddict_find(owl_global_get_cmddict(&g), name);
  if (cmd) return owl_cmd_describe(cmd);
  else return(NULL);
}

void owl_function_show_command(char *name)
{
  owl_function_help_for_command(name);
}

void owl_function_show_license()
{
  char *text;

  text=""
    "barnowl version " OWL_VERSION_STRING "\n"
    "Copyright (c) 2006-2008 The BarnOwl Developers. All rights reserved.\n"
    "Copyright (c) 2004 James Kretchmar. All rights reserved.\n"
    "\n"
    "Redistribution and use in source and binary forms, with or without\n"
    "modification, are permitted provided that the following conditions are\n"
    "met:\n"
    "\n"
    "   * Redistributions of source code must retain the above copyright\n"
    "     notice, this list of conditions and the following disclaimer.\n"
    "\n"
    "   * Redistributions in binary form must reproduce the above copyright\n"
    "     notice, this list of conditions and the following disclaimer in\n"
    "     the documentation and/or other materials provided with the\n"
    "     distribution.\n"
    "\n"
    "   * Redistributions in any form must be accompanied by information on\n"
    "     how to obtain complete source code for the Owl software and any\n"
    "     accompanying software that uses the Owl software. The source code\n"
    "     must either be included in the distribution or be available for no\n"
    "     more than the cost of distribution plus a nominal fee, and must be\n"
    "     freely redistributable under reasonable conditions. For an\n"
    "     executable file, complete source code means the source code for\n"
    "     all modules it contains. It does not include source code for\n"
    "     modules or files that typically accompany the major components of\n"
    "     the operating system on which the executable file runs.\n"
    "\n"
    "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n"
    "IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"
    "WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR\n"
    "NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE\n"
    "LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n"
    "CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n"
    "SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n"
    "BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n"
    "WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n"
    "OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n"
    "IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n";
  owl_function_popless_text(text);
}

/* Create an admin message, append it to the global list of messages
 * and redisplay if necessary.
 */
void owl_function_adminmsg(char *header, char *body)
{
  owl_message *m;

  m=owl_malloc(sizeof(owl_message));
  owl_message_create_admin(m, header, body);
  
  /* add it to the global list and current view */
  owl_messagelist_append_element(owl_global_get_msglist(&g), m);
  owl_view_consider_message(owl_global_get_current_view(&g), m);

  /* do followlast if necessary */
  if (owl_global_should_followlast(&g)) owl_function_lastmsg_noredisplay();

  /* redisplay etc. */
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
    owl_popwin_refresh(owl_global_get_popwin(&g));
  }
  wnoutrefresh(owl_global_get_curs_recwin(&g));
  owl_global_set_needrefresh(&g);
}

/* Create an outgoing zephyr message and return a pointer to it.  Does
 * not put it on the global queue, use owl_function_add_message() for
 * that.
 */
owl_message *owl_function_make_outgoing_zephyr(char *body, char *zwriteline, char *zsig)
{
  owl_message *m;
  owl_zwrite z;
  
  /* create a zwrite for the purpose of filling in other message fields */
  owl_zwrite_create_from_line(&z, zwriteline);

  /* create the message */
  m=owl_malloc(sizeof(owl_message));
  owl_message_create_from_zwriteline(m, zwriteline, body, zsig);
  owl_zwrite_free(&z);

  return(m);
}

/* Create an outgoing loopback message and return a pointer to it.
 * Does not append it to the global queue, use
 * owl_function_add_message() for that.
 */
owl_message *owl_function_make_outgoing_loopback(char *body)
{
  owl_message *m;

  /* create the message */
  m=owl_malloc(sizeof(owl_message));
  owl_message_create_loopback(m, body);
  owl_message_set_direction_out(m);

  return(m);
}

void owl_function_zwrite_setup(char *line)
{
  owl_editwin *e;
  char buff[1024];
  owl_zwrite z;
  int ret;

  /* check the arguments */
  ret=owl_zwrite_create_from_line(&z, line);
  if (ret) {
    owl_function_error("Error in zwrite arguments");
    owl_zwrite_free(&z);
    return;
  }

  /* send a ping if necessary */
  if (owl_global_is_txping(&g)) {
    owl_zwrite_send_ping(&z);
  }
  owl_zwrite_free(&z);

  /* create and setup the editwin */
  e=owl_global_get_typwin(&g);
  owl_editwin_new_style(e, OWL_EDITWIN_STYLE_MULTILINE, owl_global_get_msg_history(&g));

  if (!owl_global_get_lockout_ctrld(&g)) {
    owl_function_makemsg("Type your zephyr below.  End with ^D or a dot on a line by itself.  ^C will quit.");
  } else {
    owl_function_makemsg("Type your zephyr below.  End with a dot on a line by itself.  ^C will quit.");
  }

  owl_editwin_clear(e);
  owl_editwin_set_dotsend(e);
  strcpy(buff, "----> ");
  strcat(buff, line);
  strcat(buff, "\n");
  owl_editwin_set_locktext(e, buff);

  /* make it active */
  owl_global_set_typwin_active(&g);

  owl_global_set_buffercallback(&g, &owl_callback_zwrite, line);
}

void owl_function_loopwrite_setup()
{
  owl_editwin *e;

  /* create and setup the editwin */
  e=owl_global_get_typwin(&g);
  owl_editwin_new_style(e, OWL_EDITWIN_STYLE_MULTILINE, owl_global_get_msg_history(&g));

  if (!owl_global_get_lockout_ctrld(&g)) {
    owl_function_makemsg("Type your message below.  End with ^D or a dot on a line by itself.  ^C will quit.");
  } else {
    owl_function_makemsg("Type your message below.  End with a dot on a line by itself.  ^C will quit.");
  }

  owl_editwin_clear(e);
  owl_editwin_set_dotsend(e);
  owl_editwin_set_locktext(e, "----> loopwrite\n");

  /* make it active */
  owl_global_set_typwin_active(&g);

  owl_global_set_buffercallback(&g, &owl_callback_loopwrite, "loopwrite");
}

void owl_callback_zwrite(void *cbdata, char *text) {
  owl_function_zwrite((char *)cbdata, text);
}

/* send, log and display an outgoing zephyr.  If 'msg' is NULL
 * the message is expected to be set from the zwrite line itself
 */
void owl_function_zwrite(char *line, char *msg)
{
  owl_zwrite z;
  char *mymsg;
  owl_message *m;

  if(!strncmp(line, "zcrypt", strlen("zcrypt"))) {
    owl_function_zcrypt(line, msg);
    return;
  }

  /* create the zwrite and send the message */
  owl_zwrite_create_from_line(&z, line);
  if (msg) {
    owl_zwrite_set_message(&z, msg);
  }
  owl_zwrite_send_message(&z);
  owl_function_makemsg("Waiting for ack...");

  /* If it's personal */
  if (owl_zwrite_is_personal(&z)) {
    /* create the outgoing message */
    mymsg=owl_zwrite_get_message(&z);
    m=owl_function_make_outgoing_zephyr(mymsg, line, owl_zwrite_get_zsig(&z));

    if (m) {
      owl_global_messagequeue_addmsg(&g, m);
    } else {
      owl_function_error("Could not create outgoing zephyr message");
    }
  }

  /* free the zwrite */
  owl_zwrite_free(&z);
}

/* send, log and display an outgoing zcrypt zephyr.  If 'msg' is NULL
 * the message is expected to be set from the zwrite line itself
 */
void owl_function_zcrypt(char *line, char *msg)
{
  owl_zwrite z;
  char *mymsg;
  char *cryptmsg;
  owl_message *m;
#ifdef OWL_ENABLE_ZCRYPT
  int ret;
#endif

  /* create the zwrite and send the message */
  owl_zwrite_create_from_line(&z, line);
  if (msg) {
    owl_zwrite_set_message(&z, msg);
  }

  mymsg=owl_zwrite_get_message(&z);
#ifdef OWL_ENABLE_ZCRYPT
  cryptmsg=owl_malloc(strlen(mymsg)*4);
  ret=owl_zcrypt_encrypt(cryptmsg, mymsg, owl_zwrite_get_class(&z), owl_zwrite_get_instance(&z));
  if (ret) {
    owl_function_error("Error in zcrypt, possibly no key found.  Message not sent.");
    owl_function_beep();
    owl_free(cryptmsg);
    return;
  }
#else
  cryptmsg=owl_strdup(mymsg);
#endif

  owl_zwrite_set_message(&z, cryptmsg);
  owl_zwrite_set_opcode(&z, "crypt");
  mymsg=cryptmsg;
    
  owl_zwrite_send_message(&z);
  owl_function_makemsg("Waiting for ack...");

  /* If it's personal */
  if (owl_zwrite_is_personal(&z)) {
    /* create the outgoing message */
    mymsg=owl_zwrite_get_message(&z);
    m=owl_function_make_outgoing_zephyr(mymsg, line, owl_zwrite_get_zsig(&z));
    if (m) {
      owl_global_messagequeue_addmsg(&g, m);
    } else {
      owl_function_error("Could not create outgoing zephyr message");
    }
  }

  /* free the zwrite */
  owl_free(cryptmsg);
  owl_zwrite_free(&z);
}

void owl_callback_loopwrite(void *cbdata, char *text) {
  owl_function_loopwrite(text);
}

void owl_function_loopwrite(char *msg)
{
  owl_message *min, *mout;

  /* create a message and put it on the message queue.  This simulates
   * an incoming message */
  min=owl_malloc(sizeof(owl_message));
  mout=owl_function_make_outgoing_loopback(msg);

  if (owl_global_is_displayoutgoing(&g)) {
    owl_global_messagequeue_addmsg(&g, mout);
  } else {
    owl_message_free(mout);
  }

  owl_message_create_loopback(min, msg);
  owl_message_set_direction_in(min);
  owl_global_messagequeue_addmsg(&g, min);

  /* fake a makemsg */
  owl_function_makemsg("loopback message sent");
}

/* If filter is non-null, looks for the next message matching
 * that filter.  If skip_deleted, skips any deleted messages. 
 * If last_if_none, will stop at the last message in the view
 * if no matching messages are found.  */
void owl_function_nextmsg_full(char *filter, int skip_deleted, int last_if_none)
{
  int curmsg, i, viewsize, found;
  owl_view *v;
  owl_filter *f = NULL;
  owl_message *m;

  v=owl_global_get_current_view(&g);

  if (filter) {
    f=owl_global_get_filter(&g, filter);
    if (!f) {
      owl_function_error("No %s filter defined", filter);
      return;
    }
  }

  curmsg=owl_global_get_curmsg(&g);
  viewsize=owl_view_get_size(v);
  found=0;

  /* just check to make sure we're in bounds... */
  if (curmsg>viewsize-1) curmsg=viewsize-1;
  if (curmsg<0) curmsg=0;

  for (i=curmsg+1; i<viewsize; i++) {
    m=owl_view_get_element(v, i);
    if (skip_deleted && owl_message_is_delete(m)) continue;
    if (f && !owl_filter_message_match(f, m)) continue;
    found = 1;
    break;
  }

  if (i>owl_view_get_size(v)-1) i=owl_view_get_size(v)-1;
  if (i<0) i=0;

  if (!found) {
    owl_function_makemsg("already at last%s message%s%s",
                         skip_deleted?" non-deleted":"",
                         filter?" in ":"", filter?filter:"");
    /* if (!skip_deleted) owl_function_beep(); */
  }

  if (last_if_none || found) {
    owl_global_set_curmsg(&g, i);
    owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
    owl_global_set_direction_downwards(&g);
  }
}

void owl_function_prevmsg_full(char *filter, int skip_deleted, int first_if_none)
{
  int curmsg, i, viewsize, found;
  owl_view *v;
  owl_filter *f = NULL;
  owl_message *m;

  v=owl_global_get_current_view(&g);

  if (filter) {
    f=owl_global_get_filter(&g, filter);
    if (!f) {
      owl_function_error("No %s filter defined", filter);
      return;
    }
  }

  curmsg=owl_global_get_curmsg(&g);
  viewsize=owl_view_get_size(v);
  found=0;

  /* just check to make sure we're in bounds... */
  if (curmsg<0) curmsg=0;

  for (i=curmsg-1; i>=0; i--) {
    m=owl_view_get_element(v, i);
    if (skip_deleted && owl_message_is_delete(m)) continue;
    if (f && !owl_filter_message_match(f, m)) continue;
    found = 1;
    break;
  }

  if (i<0) i=0;

  if (!found) {
    owl_function_makemsg("already at first%s message%s%s",
                         skip_deleted?" non-deleted":"",
                         filter?" in ":"", filter?filter:"");
    /* if (!skip_deleted) owl_function_beep(); */
  }

  if (first_if_none || found) {
    owl_global_set_curmsg(&g, i);
    owl_function_calculate_topmsg(OWL_DIRECTION_UPWARDS);
    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
    owl_global_set_direction_upwards(&g);
  }
}

void owl_function_nextmsg()
{
  owl_function_nextmsg_full(NULL, 0, 1);
}

void owl_function_prevmsg()
{
  owl_function_prevmsg_full(NULL, 0, 1);
}

void owl_function_nextmsg_notdeleted()
{
  owl_function_nextmsg_full(NULL, 1, 1);
}

void owl_function_prevmsg_notdeleted()
{
  owl_function_prevmsg_full(NULL, 1, 1);
}

void owl_function_nextmsg_personal()
{
  owl_function_nextmsg_full("personal", 0, 0);
}

void owl_function_prevmsg_personal()
{
  owl_function_prevmsg_full("personal", 0, 0);
}


/* if move_after is 1, moves after the delete */
void owl_function_deletecur(int move_after)
{
  int curmsg;
  owl_view *v;

  v=owl_global_get_current_view(&g);

  /* bail if there's no current message */
  if (owl_view_get_size(v) < 1) {
    owl_function_error("No current message to delete");
    return;
  }

  /* mark the message for deletion */
  curmsg=owl_global_get_curmsg(&g);
  owl_view_delete_element(v, curmsg);

  if (move_after) {
    /* move the poiner in the appropriate direction 
     * to the next undeleted msg */
    if (owl_global_get_direction(&g)==OWL_DIRECTION_UPWARDS) {
      owl_function_prevmsg_notdeleted();
    } else {
      owl_function_nextmsg_notdeleted();
    }
  }
}

void owl_function_undeletecur(int move_after)
{
  int curmsg;
  owl_view *v;

  v=owl_global_get_current_view(&g);
  
  if (owl_view_get_size(v) < 1) {
    owl_function_error("No current message to undelete");
    return;
  }
  curmsg=owl_global_get_curmsg(&g);

  owl_view_undelete_element(v, curmsg);

  if (move_after) {
    if (owl_global_get_direction(&g)==OWL_DIRECTION_UPWARDS) {
      if (curmsg>0) {
        owl_function_prevmsg();
      } else {
        owl_function_nextmsg();
      }
    } else {
      owl_function_nextmsg();
    }
  }

  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
}

void owl_function_expunge()
{
  int curmsg;
  owl_message *m;
  owl_messagelist *ml;
  owl_view *v;
  int lastmsgid=0;

  curmsg=owl_global_get_curmsg(&g);
  v=owl_global_get_current_view(&g);
  ml=owl_global_get_msglist(&g);

  m=owl_view_get_element(v, curmsg);
  if (m) lastmsgid = owl_message_get_id(m);

  /* expunge the message list */
  owl_messagelist_expunge(ml);

  /* update all views (we only have one right now) */
  owl_view_recalculate(v);

  /* find where the new position should be
     (as close as possible to where we last where) */
  curmsg = owl_view_get_nearest_to_msgid(v, lastmsgid);
  if (curmsg>owl_view_get_size(v)-1) curmsg = owl_view_get_size(v)-1;
  if (curmsg<0) curmsg = 0;
  owl_global_set_curmsg(&g, curmsg);
  owl_function_calculate_topmsg(OWL_DIRECTION_NONE);
  /* if there are no messages set the direction to down in case we
     delete everything upwards */
  owl_global_set_direction_downwards(&g);
  
  owl_function_makemsg("Messages expunged");
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
}

void owl_function_firstmsg()
{
  owl_global_set_curmsg(&g, 0);
  owl_global_set_topmsg(&g, 0);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  owl_global_set_direction_downwards(&g);
}

void owl_function_lastmsg_noredisplay()
{
  int oldcurmsg, curmsg;
  owl_view *v;

  v=owl_global_get_current_view(&g);
  oldcurmsg=owl_global_get_curmsg(&g);
  curmsg=owl_view_get_size(v)-1;  
  if (curmsg<0) curmsg=0;
  owl_global_set_curmsg(&g, curmsg);
  if (oldcurmsg < curmsg) {
    owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
  } else if (curmsg<owl_view_get_size(v)) {
    /* If already at the end, blank the screen and move curmsg
     * past the end of the messages. */
    owl_global_set_topmsg(&g, curmsg+1);
    owl_global_set_curmsg(&g, curmsg+1);
  } 
  /* owl_mainwin_redisplay(owl_global_get_mainwin(&g)); */
  owl_global_set_direction_downwards(&g);
}

void owl_function_lastmsg()
{
  owl_function_lastmsg_noredisplay();
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));  
}

void owl_function_shift_right()
{
  owl_global_set_rightshift(&g, owl_global_get_rightshift(&g)+10);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  owl_global_set_needrefresh(&g);
}

void owl_function_shift_left()
{
  int shift;

  shift=owl_global_get_rightshift(&g);
  if (shift>=10) {
    owl_global_set_rightshift(&g, shift-10);
    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
    owl_global_set_needrefresh(&g);
  } else {
    owl_function_beep();
    owl_function_makemsg("Already full left");
  }
}

void owl_function_unsuball()
{
  unsuball();
  owl_function_makemsg("Unsubscribed from all messages.");
}


/* Load zephyr subscriptions from the named 'file' and load zephyr's
 * default subscriptions as well.  An error message is printed if
 * 'file' can't be opened or if zephyr reports an error in
 * subscribing.
 *
 * If 'file' is NULL, this look for the default filename
 * $HOME/.zephyr.subs.  If the file can not be opened in this case
 * only, no error message is printed.
 */
void owl_function_loadsubs(char *file)
{
  int ret, ret2;
  char *foo, *path;

  if (file==NULL) {
    ret=owl_zephyr_loadsubs(NULL, 0);
  } else {
    path = owl_util_makepath(file);
    ret=owl_zephyr_loadsubs(path, 1);
    free(path);
  }

  /* for backwards compatibility for now */
  ret2=owl_zephyr_loaddefaultsubs();

  if (!owl_context_is_interactive(owl_global_get_context(&g))) return;

  foo=file?file:"file";
  if (ret==0 && ret2==0) {
    if (!file) {
      owl_function_makemsg("Subscribed to messages.");
    } else {
      owl_function_makemsg("Subscribed to messages from %s", file);
    }
  } else if (ret==-1) {
    owl_function_error("Could not read %s", foo);
  } else {
    owl_function_error("Error subscribing to messages");
  }
}

void owl_function_loadloginsubs(char *file)
{
  int ret;

  ret=owl_zephyr_loadloginsubs(file);

  if (!owl_context_is_interactive(owl_global_get_context(&g))) return;
  if (ret==0) {
    owl_function_makemsg("Subscribed to login messages from file.");
  } else if (ret==-1) {
    owl_function_error("Could not open file for login subscriptions.");
  } else {
    owl_function_error("Error subscribing to login messages from file.");
  }
}

void owl_function_suspend()
{
  endwin();
  printf("\n");
  kill(getpid(), SIGSTOP);

  /* resize to reinitialize all the windows when we come back */
  owl_command_resize();
}

void owl_function_zaway_toggle()
{
  if (!owl_global_is_zaway(&g)) {
    owl_global_set_zaway_msg(&g, owl_global_get_zaway_msg_default(&g));
    owl_function_zaway_on();
  } else {
    owl_function_zaway_off();
  }
}

void owl_function_zaway_on()
{
  owl_global_set_zaway_on(&g);
  owl_function_makemsg("zaway set (%s)", owl_global_get_zaway_msg(&g));
}

void owl_function_zaway_off()
{
  owl_global_set_zaway_off(&g);
  owl_function_makemsg("zaway off");
}

void owl_function_quit()
{
  char *ret;
  
  /* zlog out if we need to */
  if (owl_global_is_shutdownlogout(&g)) {
    owl_zephyr_zlog_out();
  }

  /* execute the commands in shutdown */
  ret = owl_perlconfig_execute("BarnOwl::Hooks::_shutdown();");
  if (ret) owl_free(ret);

  /* signal our child process, if any */
  if (owl_global_get_newmsgproc_pid(&g)) {
    kill(owl_global_get_newmsgproc_pid(&g), SIGHUP);
  }

  /* Quit zephyr */
  owl_zephyr_shutdown();
  
  /* done with curses */
  endwin();

  /* restore terminal settings */
  tcsetattr(0, TCSAFLUSH, owl_global_get_startup_tio(&g));

  owl_function_debugmsg("Quitting Owl");
  exit(0);
}

void owl_function_openurl()
{
  /* visit the first url in the current message */
  owl_message *m;
  owl_view *v;
  char *ptr1, *ptr2, *text, url[LINE], tmpbuff[LINE];
  int webbrowser;

  webbrowser = owl_global_get_webbrowser(&g);

  if (webbrowser < 0 || webbrowser == OWL_WEBBROWSER_NONE) {
    owl_function_error("No browser selected");
    return;
  }

  v=owl_global_get_current_view(&g);
  
  m=owl_view_get_element(v, owl_global_get_curmsg(&g));

  if (!m || owl_view_get_size(v)==0) {
    owl_function_error("No current message selected");
    return;
  }

  text=owl_message_get_text(m);

  /* First look for a good URL */  
  if ((ptr1=strstr(text, "http://"))!=NULL) {
    ptr2=strpbrk(ptr1, " \n\t");
    if (ptr2) {
      strncpy(url, ptr1, ptr2-ptr1+1);
      url[ptr2-ptr1+1]='\0';
    } else {
      strcpy(url, ptr1);
    }

    /* if we had <http strip a trailing > */
    if (ptr1>text && ptr1[-1]=='<') {
      if (url[strlen(url)-1]=='>') {
        url[strlen(url)-1]='\0';
      }
    }
  } else if ((ptr1=strstr(text, "https://"))!=NULL) {
    /* Look for an https URL */  
    ptr2=strpbrk(ptr1, " \n\t");
    if (ptr2) {
      strncpy(url, ptr1, ptr2-ptr1+1);
      url[ptr2-ptr1+1]='\0';
    } else {
      strcpy(url, ptr1);
    }
    
    /* if we had <http strip a trailing > */
    if (ptr1>text && ptr1[-1]=='<') {
      if (url[strlen(url)-1]=='>') {
        url[strlen(url)-1]='\0';
      }
    }
  } else if ((ptr1=strstr(text, "www."))!=NULL) {
    /* if we can't find a real url look for www.something */
    ptr2=strpbrk(ptr1, " \n\t");
    if (ptr2) {
      strncpy(url, ptr1, ptr2-ptr1+1);
      url[ptr2-ptr1+1]='\0';
    } else {
      strcpy(url, ptr1);
    }
  } else {
    owl_function_beep();
    owl_function_error("Could not find URL to open.");
    return;
  }

  /* Make sure there aren't any quotes or \'s in the url */
  for (ptr1 = url; *ptr1; ptr1++) {
    if (*ptr1 == '"' || *ptr1 == '\\') {
      owl_function_beep();
      owl_function_error("URL contains invalid characters.");
      return;
    }
  }
  
  /* NOTE: There are potentially serious security issues here... */

  /* open the page */
  owl_function_makemsg("Opening %s", url);
  if (webbrowser == OWL_WEBBROWSER_NETSCAPE) {
    snprintf(tmpbuff, LINE, "netscape -remote \"openURL(%s)\" > /dev/null 2> /dev/null", url);
    system(tmpbuff); 
  } else if (webbrowser == OWL_WEBBROWSER_GALEON) {
    snprintf(tmpbuff, LINE, "galeon \"%s\" > /dev/null 2> /dev/null &", url);
    system(tmpbuff); 
  } else if (webbrowser == OWL_WEBBROWSER_OPERA) {
    snprintf(tmpbuff, LINE, "opera \"%s\" > /dev/null 2> /dev/null &", url);
    system(tmpbuff); 
  }
}

void owl_function_calculate_topmsg(int direction)
{
  int recwinlines, topmsg, curmsg;
  owl_view *v;

  v=owl_global_get_current_view(&g);
  curmsg=owl_global_get_curmsg(&g);
  topmsg=owl_global_get_topmsg(&g);
  recwinlines=owl_global_get_recwin_lines(&g);

  /*
  if (owl_view_get_size(v) < 1) {
    return;
  }
  */

  switch (owl_global_get_scrollmode(&g)) {
  case OWL_SCROLLMODE_TOP:
    topmsg = owl_function_calculate_topmsg_top(direction, v, curmsg, topmsg, recwinlines);
    break;
  case OWL_SCROLLMODE_NEARTOP:
    topmsg = owl_function_calculate_topmsg_neartop(direction, v, curmsg, topmsg, recwinlines);
    break;
  case OWL_SCROLLMODE_CENTER:
    topmsg = owl_function_calculate_topmsg_center(direction, v, curmsg, topmsg, recwinlines);
    break;
  case OWL_SCROLLMODE_PAGED:
    topmsg = owl_function_calculate_topmsg_paged(direction, v, curmsg, topmsg, recwinlines, 0);
    break;
  case OWL_SCROLLMODE_PAGEDCENTER:
    topmsg = owl_function_calculate_topmsg_paged(direction, v, curmsg, topmsg, recwinlines, 1);
    break;
  case OWL_SCROLLMODE_NORMAL:
  default:
    topmsg = owl_function_calculate_topmsg_normal(direction, v, curmsg, topmsg, recwinlines);
  }
  owl_function_debugmsg("Calculated a topmsg of %i", topmsg);
  owl_global_set_topmsg(&g, topmsg);
}

/* Returns what the new topmsg should be.  
 * Passed the last direction of movement, 
 * the current view,
 * the current message number in the view,
 * the top message currently being displayed,
 * and the number of lines in the recwin.
 */
int owl_function_calculate_topmsg_top(int direction, owl_view *v, int curmsg, int topmsg, int recwinlines)
{
  return(curmsg);
}

int owl_function_calculate_topmsg_neartop(int direction, owl_view *v, int curmsg, int topmsg, int recwinlines)
{
  if (curmsg>0 
      && (owl_message_get_numlines(owl_view_get_element(v, curmsg-1))
          <  recwinlines/2)) {
    return(curmsg-1);
  } else {
    return(curmsg);
  }
}
  
int owl_function_calculate_topmsg_center(int direction, owl_view *v, int curmsg, int topmsg, int recwinlines)
{
  int i, last, lines;

  last = curmsg;
  lines = 0;
  for (i=curmsg-1; i>=0; i--) {
    lines += owl_message_get_numlines(owl_view_get_element(v, i));
    if (lines > recwinlines/2) break;
    last = i;
  }
  return(last);
}
  
int owl_function_calculate_topmsg_paged(int direction, owl_view *v, int curmsg, int topmsg, int recwinlines, int center_on_page)
{
  int i, last, lines, savey;
  
  /* If we're off the top of the screen, scroll up such that the 
   * curmsg is near the botton of the screen. */
  if (curmsg < topmsg) {
    last = curmsg;
    lines = 0;
    for (i=curmsg; i>=0; i--) {
      lines += owl_message_get_numlines(owl_view_get_element(v, i));
      if (lines > recwinlines) break;
    last = i;
    }
    if (center_on_page) {
      return(owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines));
    } else {
      return(last);
    }
  }

  /* Find number of lines from top to bottom of curmsg (store in savey) */
  savey=0;
  for (i=topmsg; i<=curmsg; i++) {
    savey+=owl_message_get_numlines(owl_view_get_element(v, i));
  }

  /* if we're off the bottom of the screen, scroll down */
  if (savey > recwinlines) {
    if (center_on_page) {
      return(owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines));
    } else {
      return(curmsg);
    }
  }

  /* else just stay as we are... */
  return(topmsg);
}

int owl_function_calculate_topmsg_normal(int direction, owl_view *v, int curmsg, int topmsg, int recwinlines)
{
  int savey, i, foo, y;

  if (curmsg<0) return(topmsg);
    
  /* If we're off the top of the screen then center */
  if (curmsg<topmsg) {
    topmsg=owl_function_calculate_topmsg_center(direction, v, curmsg, 0, recwinlines);
  }

  /* If curmsg is so far past topmsg that there are more messages than
     lines, skip the line counting that follows because we're
     certainly off screen.  */
  savey=curmsg-topmsg;
  if (savey <= recwinlines) {
    /* Find number of lines from top to bottom of curmsg (store in savey) */
    savey = 0;
    for (i=topmsg; i<=curmsg; i++) {
      savey+=owl_message_get_numlines(owl_view_get_element(v, i));
    }
  }

  /* If we're off the bottom of the screen, set the topmsg to curmsg
   * and scroll upwards */
  if (savey > recwinlines) {
    topmsg=curmsg;
    savey=owl_message_get_numlines(owl_view_get_element(v, curmsg));
    direction=OWL_DIRECTION_UPWARDS;
  }
  
  /* If our bottom line is less than 1/4 down the screen then scroll up */
  if (direction == OWL_DIRECTION_UPWARDS || direction == OWL_DIRECTION_NONE) {
    if (savey < (recwinlines / 4)) {
      y=0;
      for (i=curmsg; i>=0; i--) {
        foo=owl_message_get_numlines(owl_view_get_element(v, i));
        /* will we run the curmsg off the screen? */
        if ((foo+y) >= recwinlines) {
          i++;
          if (i>curmsg) i=curmsg;
          break;
        }
        /* have saved 1/2 the screen space? */
        y+=foo;
        if (y > (recwinlines / 2)) break;
      }
      if (i<0) i=0;
      return(i);
    }
  }

  if (direction == OWL_DIRECTION_DOWNWARDS || direction == OWL_DIRECTION_NONE) {
    /* If curmsg bottom line is more than 3/4 down the screen then scroll down */
    if (savey > ((recwinlines * 3)/4)) {
      y=0;
      /* count lines from the top until we can save 1/2 the screen size */
      for (i=topmsg; i<curmsg; i++) {
        y+=owl_message_get_numlines(owl_view_get_element(v, i));
        if (y > (recwinlines / 2)) break;
      }
      if (i==curmsg) {
        i--;
      }
      return(i+1);
    }
  }

  return(topmsg);
}

void owl_function_resize()
{
  owl_global_set_resize_pending(&g);
}

void owl_function_debugmsg(char *fmt, ...)
{
  FILE *file;
  time_t now;
  char buff1[LINE], buff2[LINE];
  va_list ap;
  va_start(ap, fmt);

  if (!owl_global_is_debug_fast(&g)) return;

  file=fopen(owl_global_get_debug_file(&g), "a");
  if (!file) return;

  now=time(NULL);
  strcpy(buff1, ctime(&now));
  buff1[strlen(buff1)-1]='\0';

  owl_global_get_runtime_string(&g, buff2);
  
  fprintf(file, "[%i -  %s - %s]: ", (int) getpid(), buff1, buff2);
  vfprintf(file, fmt, ap);
  fprintf(file, "\n");
  fclose(file);

  va_end(ap);
}

void owl_function_refresh()
{
  owl_function_resize();
}

void owl_function_beep()
{
  if (owl_global_is_bell(&g)) {
    beep();
    owl_global_set_needrefresh(&g); /* do we really need this? */
  }
}

int owl_function_subscribe(char *class, char *inst, char *recip)
{
  int ret;

  ret=owl_zephyr_sub(class, inst, recip);
  if (ret) {
    owl_function_error("Error subscribing.");
  } else {
    owl_function_makemsg("Subscribed.");
  }
  return(ret);
}

void owl_function_unsubscribe(char *class, char *inst, char *recip)
{
  int ret;

  ret=owl_zephyr_unsub(class, inst, recip);
  if (ret) {
    owl_function_error("Error subscribing.");
  } else {
    owl_function_makemsg("Unsubscribed.");
  }
}

void owl_function_set_cursor(WINDOW *win)
{
  wnoutrefresh(win);
}

void owl_function_full_redisplay()
{
  redrawwin(owl_global_get_curs_recwin(&g));
  redrawwin(owl_global_get_curs_sepwin(&g));
  /* Work around curses segfualts with windows off the screen */
  if (g.lines >= owl_global_get_typwin_lines(&g)+2)
      redrawwin(owl_global_get_curs_typwin(&g));
  if (g.lines >= 2)
      redrawwin(owl_global_get_curs_msgwin(&g));

  wnoutrefresh(owl_global_get_curs_recwin(&g));
  wnoutrefresh(owl_global_get_curs_sepwin(&g));
  wnoutrefresh(owl_global_get_curs_typwin(&g));
  wnoutrefresh(owl_global_get_curs_msgwin(&g));

  if (owl_popwin_is_active(owl_global_get_popwin(&g))) {
    owl_popwin_refresh(owl_global_get_popwin(&g));
  }
  
  sepbar("");
  owl_function_makemsg("");

  owl_global_set_needrefresh(&g);
}

void owl_function_popless_text(char *text)
{
  owl_popwin *pw;
  owl_viewwin *v;

  pw=owl_global_get_popwin(&g);
  v=owl_global_get_viewwin(&g);

  owl_popwin_up(pw);
  owl_viewwin_init_text(v, owl_popwin_get_curswin(pw),
                        owl_popwin_get_lines(pw), owl_popwin_get_cols(pw),
                        text);
  owl_popwin_refresh(pw);
  owl_viewwin_redisplay(v, 0);
  owl_global_set_needrefresh(&g);
}

void owl_function_popless_fmtext(owl_fmtext *fm)
{
  owl_popwin *pw;
  owl_viewwin *v;

  pw=owl_global_get_popwin(&g);
  v=owl_global_get_viewwin(&g);

  owl_popwin_up(pw);
  owl_viewwin_init_fmtext(v, owl_popwin_get_curswin(pw),
                   owl_popwin_get_lines(pw), owl_popwin_get_cols(pw),
                   fm);
  owl_popwin_refresh(pw);
  owl_viewwin_redisplay(v, 0);
  owl_global_set_needrefresh(&g);
}

void owl_function_popless_file(char *filename)
{
  owl_fmtext fm;
  FILE *file;
  char buff[1024];

  file=fopen(filename, "r");
  if (!file) {
    owl_function_error("Could not open file: %s", filename);
    return;
  }

  owl_fmtext_init_null(&fm);
  while (fgets(buff, 1024, file)) {
    owl_fmtext_append_normal(&fm, buff);
    /*    owl_fmtext_append_normal(&fm, "\n"); */
  }

  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
  fclose(file);
}

void owl_function_about()
{
  char buff[5000];

  sprintf(buff, "This is barnowl version %s\n\n", OWL_VERSION_STRING);
  strcat(buff, "barnowl is a fork of the Owl zephyr client, written and\n");
  strcat(buff, "maintained by Alejandro Sedeno and Nelson Elhage at the\n");
  strcat(buff, "Massachusetts Institute of Technology. \n");
  strcat(buff, "\n");
  strcat(buff, "Owl was written by James Kretchmar. The first version, 0.5, was\n");
  strcat(buff, "released in March 2002.\n");
  strcat(buff, "\n");
  strcat(buff, "The name 'owl' was chosen in reference to the owls in the\n");
  strcat(buff, "Harry Potter novels, who are tasked with carrying messages\n");
  strcat(buff, "between Witches and Wizards. The name 'barnowl' was chosen\n");
  strcat(buff, "because we feel our owls should live closer to our ponies.\n");
  strcat(buff, "\n");
  strcat(buff, "Copyright (c) 2006-2008 The BarnOwl Developers. All rights reserved.\n");
  strcat(buff, "Copyright (c) 2004 James Kretchmar. All rights reserved.\n");
  strcat(buff, "Copyright 2002 Massachusetts Institute of Technology\n");
  strcat(buff, "\n");
  strcat(buff, "This program is free software. You can redistribute it and/or\n");
  strcat(buff,  "modify under the terms of the Sleepycat License. Use the \n");
  strcat(buff,  "':show license' command to display the full license\n");
  owl_function_popless_text(buff);
}

void owl_function_info()
{
  owl_message *m;
  owl_fmtext fm, attrfm;
  char buff[10000];
  owl_view *v;
#ifdef HAVE_LIBZEPHYR
  ZNotice_t *n;
#endif

  owl_fmtext_init_null(&fm);
  
  v=owl_global_get_current_view(&g);
  m=owl_view_get_element(v, owl_global_get_curmsg(&g));
  if (!m || owl_view_get_size(v)==0) {
    owl_function_error("No message selected\n");
    return;
  }

  owl_fmtext_append_bold(&fm, "General Information:\n");
  owl_fmtext_append_normal(&fm, "  Msg Id    : ");
  sprintf(buff, "%i", owl_message_get_id(m));
  owl_fmtext_append_normal(&fm, buff);
  owl_fmtext_append_normal(&fm, "\n");

  owl_fmtext_append_normal(&fm, "  Type      : ");
  owl_fmtext_append_bold(&fm, owl_message_get_type(m));
  owl_fmtext_append_normal(&fm, "\n");

  if (owl_message_is_direction_in(m)) {
    owl_fmtext_append_normal(&fm, "  Direction : in\n");
  } else if (owl_message_is_direction_out(m)) {
    owl_fmtext_append_normal(&fm, "  Direction : out\n");
  } else if (owl_message_is_direction_none(m)) {
    owl_fmtext_append_normal(&fm, "  Direction : none\n");
  } else {
    owl_fmtext_append_normal(&fm, "  Direction : unknown\n");
  }

  owl_fmtext_append_normal(&fm, "  Time      : ");
  owl_fmtext_append_normal(&fm, owl_message_get_timestr(m));
  owl_fmtext_append_normal(&fm, "\n");

  if (!owl_message_is_type_admin(m)) {
    owl_fmtext_append_normal(&fm, "  Sender    : ");
    owl_fmtext_append_normal(&fm, owl_message_get_sender(m));
    owl_fmtext_append_normal(&fm, "\n");
    
    owl_fmtext_append_normal(&fm, "  Recipient : ");
    owl_fmtext_append_normal(&fm, owl_message_get_recipient(m));
    owl_fmtext_append_normal(&fm, "\n");
  }
    
  if (owl_message_is_type_zephyr(m)) {
    owl_fmtext_append_bold(&fm, "\nZephyr Specific Information:\n");
    
    owl_fmtext_append_normal(&fm, "  Class     : ");
    owl_fmtext_append_normal(&fm, owl_message_get_class(m));
    owl_fmtext_append_normal(&fm, "\n");
    owl_fmtext_append_normal(&fm, "  Instance  : ");
    owl_fmtext_append_normal(&fm, owl_message_get_instance(m));
    owl_fmtext_append_normal(&fm, "\n");
    owl_fmtext_append_normal(&fm, "  Opcode    : ");
    owl_fmtext_append_normal(&fm, owl_message_get_opcode(m));
    owl_fmtext_append_normal(&fm, "\n");
    
    owl_fmtext_append_normal(&fm, "  Time      : ");
    owl_fmtext_append_normal(&fm, owl_message_get_timestr(m));
    owl_fmtext_append_normal(&fm, "\n");
#ifdef HAVE_LIBZEPHYR
    if (owl_message_is_direction_in(m)) {
      char *ptr, tmpbuff[1024];
      int i, j, fields, len;

      n=owl_message_get_notice(m);

      if (!owl_message_is_pseudo(m)) {
        owl_fmtext_append_normal(&fm, "  Kind      : ");
        if (n->z_kind==UNSAFE) {
          owl_fmtext_append_normal(&fm, "UNSAFE\n");
        } else if (n->z_kind==UNACKED) {
          owl_fmtext_append_normal(&fm, "UNACKED\n");
        } else if (n->z_kind==ACKED) {
          owl_fmtext_append_normal(&fm, "ACKED\n");
        } else if (n->z_kind==HMACK) {
          owl_fmtext_append_normal(&fm, "HMACK\n");
        } else if (n->z_kind==HMCTL) {
          owl_fmtext_append_normal(&fm, "HMCTL\n");
        } else if (n->z_kind==SERVACK) {
          owl_fmtext_append_normal(&fm, "SERVACK\n");
        } else if (n->z_kind==SERVNAK) {
          owl_fmtext_append_normal(&fm, "SERVNACK\n");
        } else if (n->z_kind==CLIENTACK) {
          owl_fmtext_append_normal(&fm, "CLIENTACK\n");
        } else if (n->z_kind==STAT) {
          owl_fmtext_append_normal(&fm, "STAT\n");
        } else {
          owl_fmtext_append_normal(&fm, "ILLEGAL VALUE\n");
        }
      }
      owl_fmtext_append_normal(&fm, "  Host      : ");
      owl_fmtext_append_normal(&fm, owl_message_get_hostname(m));

      if (!owl_message_is_pseudo(m)) {
        owl_fmtext_append_normal(&fm, "\n");
        sprintf(buff, "  Port      : %i\n", ntohs(n->z_port));
        owl_fmtext_append_normal(&fm, buff);

        owl_fmtext_append_normal(&fm,    "  Auth      : ");
        owl_fmtext_append_normal(&fm, owl_zephyr_get_authstr(n));
        owl_fmtext_append_normal(&fm, "\n");
        
        /* fix this */
        sprintf(buff, "  Checkd Ath: %i\n", n->z_checked_auth);
        sprintf(buff, "%s  Multi notc: %s\n", buff, n->z_multinotice);
        sprintf(buff, "%s  Num other : %i\n", buff, n->z_num_other_fields);
        sprintf(buff, "%s  Msg Len   : %i\n", buff, n->z_message_len);
        owl_fmtext_append_normal(&fm, buff);
        
        sprintf(buff, "  Fields    : %i\n", owl_zephyr_get_num_fields(n));
        owl_fmtext_append_normal(&fm, buff);
        
        fields=owl_zephyr_get_num_fields(n);
        for (i=0; i<fields; i++) {
          sprintf(buff, "  Field %i   : ", i+1);
          
          ptr=owl_zephyr_get_field_as_utf8(n, i+1);
          len=strlen(ptr);
          if (len<30) {
            strncpy(tmpbuff, ptr, len);
            tmpbuff[len]='\0';
          } else {
            strncpy(tmpbuff, ptr, 30);
            tmpbuff[30]='\0';
            strcat(tmpbuff, "...");
          }
          owl_free(ptr);
          
          for (j=0; j<strlen(tmpbuff); j++) {
            if (tmpbuff[j]=='\n') tmpbuff[j]='~';
            if (tmpbuff[j]=='\r') tmpbuff[j]='!';
          }
          
          strcat(buff, tmpbuff);
          strcat(buff, "\n");
          owl_fmtext_append_normal(&fm, buff);
        }
        owl_fmtext_append_normal(&fm, "  Default Fm:");
        owl_fmtext_append_normal(&fm, n->z_default_format);
      }
      
    }
#endif    
  }

  owl_fmtext_append_bold(&fm, "\nOwl Message Attributes:\n");
  owl_message_attributes_tofmtext(m, &attrfm);
  owl_fmtext_append_fmtext(&fm, &attrfm);
  
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
  owl_fmtext_free(&attrfm);
}

/* print the current message in a popup window.
 * Use the 'default' style regardless of whatever
 * style the user may be using
 */
void owl_function_curmsg_to_popwin()
{
  owl_popwin *pw;
  owl_view *v;
  owl_message *m;
  owl_style *s;
  owl_fmtext fm;

  v=owl_global_get_current_view(&g);
  s=owl_global_get_style_by_name(&g, "default");
  pw=owl_global_get_popwin(&g);

  m=owl_view_get_element(v, owl_global_get_curmsg(&g));

  if (!m || owl_view_get_size(v)==0) {
    owl_function_error("No current message");
    return;
  }

  owl_fmtext_init_null(&fm);
  owl_style_get_formattext(s, &fm, m);

  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_page_curmsg(int step)
{
  /* scroll down or up within the current message IF the message is truncated */

  int offset, curmsg, lines;
  owl_view *v;
  owl_message *m;

  offset=owl_global_get_curmsg_vert_offset(&g);
  v=owl_global_get_current_view(&g);
  curmsg=owl_global_get_curmsg(&g);
  m=owl_view_get_element(v, curmsg);
  if (!m || owl_view_get_size(v)==0) return;
  lines=owl_message_get_numlines(m);

  if (offset==0) {
    /* Bail if the curmsg isn't the last one displayed */
    if (curmsg != owl_mainwin_get_last_msg(owl_global_get_mainwin(&g))) {
      owl_function_makemsg("The entire message is already displayed");
      return;
    }
    
    /* Bail if we're not truncated */
    if (!owl_mainwin_is_curmsg_truncated(owl_global_get_mainwin(&g))) {
      owl_function_makemsg("The entire message is already displayed");
      return;
    }
  }
  
  
  /* don't scroll past the last line */
  if (step>0) {
    if (offset+step > lines-1) {
      owl_global_set_curmsg_vert_offset(&g, lines-1);
    } else {
      owl_global_set_curmsg_vert_offset(&g, offset+step);
    }
  }

  /* would we be before the beginning of the message? */
  if (step<0) {
    if (offset+step<0) {
      owl_global_set_curmsg_vert_offset(&g, 0);
    } else {
      owl_global_set_curmsg_vert_offset(&g, offset+step);
    }
  }
  
  /* redisplay */
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  owl_global_set_needrefresh(&g);
}

void owl_function_resize_typwin(int newsize)
{
  owl_global_set_typwin_lines(&g, newsize);
  owl_function_resize();
}

void owl_function_typwin_grow()
{
  int i;

  i=owl_global_get_typwin_lines(&g);
  owl_function_resize_typwin(i+1);
}

void owl_function_typwin_shrink()
{
  int i;

  i=owl_global_get_typwin_lines(&g);
  if (i>2) {
    owl_function_resize_typwin(i-1);
  }
}

void owl_function_mainwin_pagedown()
{
  int i;

  i=owl_mainwin_get_last_msg(owl_global_get_mainwin(&g));
  if (i<0) return;
  if (owl_mainwin_is_last_msg_truncated(owl_global_get_mainwin(&g))
      && (owl_global_get_curmsg(&g) < i)
      && (i>0)) {
    i--;
  }
  owl_global_set_curmsg(&g, i);
  owl_function_nextmsg();
}

void owl_function_mainwin_pageup()
{
  owl_global_set_curmsg(&g, owl_global_get_topmsg(&g));
  owl_function_prevmsg();
}

void owl_function_getsubs()
{
  char *buff;

  buff=owl_zephyr_getsubs();

  if (buff) {
    owl_function_popless_text(buff);
  } else {
    owl_function_popless_text("Error getting subscriptions");
  }
           
  owl_free(buff);
}

#define PABUFLEN 5000
void owl_function_printallvars()
{
  char buff[PABUFLEN], *pos, *name;
  owl_list varnames;
  int i, numvarnames, rem;

  pos = buff;
  pos += sprintf(pos, "%-20s = %s\n", "VARIABLE", "VALUE");
  pos += sprintf(pos, "%-20s   %s\n",  "--------", "-----");
  owl_variable_dict_get_names(owl_global_get_vardict(&g), &varnames);
  rem = (buff+PABUFLEN)-pos-1;
  numvarnames = owl_list_get_size(&varnames);
  for (i=0; i<numvarnames; i++) {
    name = owl_list_get_element(&varnames, i);
    if (name && name[0]!='_') {
      rem = (buff+PABUFLEN)-pos-1;    
      pos += snprintf(pos, rem, "\n%-20s = ", name);
      rem = (buff+PABUFLEN)-pos-1;    
      owl_variable_get_tostring(owl_global_get_vardict(&g), name, pos, rem);
      pos = buff+strlen(buff);
    }
  }
  rem = (buff+PABUFLEN)-pos-1;    
  snprintf(pos, rem, "\n");
  owl_variable_dict_namelist_free(&varnames);
  
  owl_function_popless_text(buff);
}

void owl_function_show_variables()
{
  owl_list varnames;
  owl_fmtext fm;  
  int i, numvarnames;
  char *varname;

  owl_fmtext_init_null(&fm);
  owl_fmtext_append_bold(&fm, 
      "Variables: (use 'show variable <name>' for details)\n");
  owl_variable_dict_get_names(owl_global_get_vardict(&g), &varnames);
  numvarnames = owl_list_get_size(&varnames);
  for (i=0; i<numvarnames; i++) {
    varname = owl_list_get_element(&varnames, i);
    if (varname && varname[0]!='_') {
      owl_variable_describe(owl_global_get_vardict(&g), varname, &fm);
    }
  }
  owl_variable_dict_namelist_free(&varnames);
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_show_variable(char *name)
{
  owl_fmtext fm;  

  owl_fmtext_init_null(&fm);
  owl_variable_get_help(owl_global_get_vardict(&g), name, &fm);
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);  
}

/* note: this applies to global message list, not to view.
 * If flag is 1, deletes.  If flag is 0, undeletes. */
void owl_function_delete_by_id(int id, int flag)
{
  owl_messagelist *ml;
  owl_message *m;
  ml = owl_global_get_msglist(&g);
  m = owl_messagelist_get_by_id(ml, id);
  if (m) {
    if (flag == 1) {
      owl_message_mark_delete(m);
    } else if (flag == 0) {
      owl_message_unmark_delete(m);
    }
    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
    owl_global_set_needrefresh(&g);
  } else {
    owl_function_error("No message with id %d: unable to mark for (un)delete",id);
  }
}

void owl_function_delete_automsgs()
{
  /* mark for deletion all messages in the current view that match the
   * 'trash' filter */

  int i, j, count;
  owl_message *m;
  owl_view *v;
  owl_filter *f;

  /* get the trash filter */
  f=owl_global_get_filter(&g, "trash");
  if (!f) {
    owl_function_error("No trash filter defined");
    return;
  }

  v=owl_global_get_current_view(&g);

  count=0;
  j=owl_view_get_size(v);
  for (i=0; i<j; i++) {
    m=owl_view_get_element(v, i);
    if (owl_filter_message_match(f, m)) {
      count++;
      owl_message_mark_delete(m);
    }
  }
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  owl_function_makemsg("%i messages marked for deletion", count);
  owl_global_set_needrefresh(&g);
}

void owl_function_status()
{
  char buff[5000];
  time_t start;
  int up, days, hours, minutes;
  owl_fmtext fm;

  owl_fmtext_init_null(&fm);

  start=owl_global_get_starttime(&g);

  owl_fmtext_append_normal(&fm, "General Information:\n");

  owl_fmtext_append_normal(&fm, "  Version: ");
  owl_fmtext_append_normal(&fm, OWL_VERSION_STRING);
  owl_fmtext_append_normal(&fm, "\n");

  owl_fmtext_append_normal(&fm, "  Startup Arguments: ");
  owl_fmtext_append_normal(&fm, owl_global_get_startupargs(&g));
  owl_fmtext_append_normal(&fm, "\n");

  owl_fmtext_append_normal(&fm, "  Current Directory: ");
  (void) getcwd(buff, MAXPATHLEN);
  owl_fmtext_append_normal(&fm, buff);
  owl_fmtext_append_normal(&fm, "\n");

  sprintf(buff, "  Startup Time: %s", ctime(&start));
  owl_fmtext_append_normal(&fm, buff);

  up=owl_global_get_runtime(&g);
  days=up/86400;
  up-=days*86400;
  hours=up/3600;
  up-=hours*3600;
  minutes=up/60;
  up-=minutes*60;
  sprintf(buff, "  Run Time: %i days %2.2i:%2.2i:%2.2i\n", days, hours, minutes, up);
  owl_fmtext_append_normal(&fm, buff);

  owl_fmtext_append_normal(&fm, "\nProtocol Options:\n");
  owl_fmtext_append_normal(&fm, "  Zephyr included    : ");
  if (owl_global_is_havezephyr(&g)) {
    owl_fmtext_append_normal(&fm, "yes\n");
  } else {
    owl_fmtext_append_normal(&fm, "no\n");
  }
  owl_fmtext_append_normal(&fm, "  AIM included       : no\n");
  owl_fmtext_append_normal(&fm, "  Loopback included  : yes\n");


  owl_fmtext_append_normal(&fm, "\nBuild Options:\n");
  owl_fmtext_append_normal(&fm, "  Stderr redirection : ");
#if OWL_STDERR_REDIR
  owl_fmtext_append_normal(&fm, "yes\n");
#else
  owl_fmtext_append_normal(&fm, "no\n");
#endif
  

  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_show_term()
{
  owl_fmtext fm;
  char buff[LINE];

  owl_fmtext_init_null(&fm);
  sprintf(buff, "Terminal Lines: %i\nTerminal Columns: %i\n",
          owl_global_get_lines(&g),
          owl_global_get_cols(&g));
  owl_fmtext_append_normal(&fm, buff);

  if (owl_global_get_hascolors(&g)) {
    owl_fmtext_append_normal(&fm, "Color: Yes\n");
    sprintf(buff, "Number of color pairs: %i\n", owl_global_get_colorpairs(&g));
    owl_fmtext_append_normal(&fm, buff);
    sprintf(buff, "Can change colors: %s\n", can_change_color() ? "yes" : "no");
    owl_fmtext_append_normal(&fm, buff);
  } else {
    owl_fmtext_append_normal(&fm, "Color: No\n");
  }

  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

/* if type = 0 then normal reply.
 * if type = 1 then it's a reply to sender
 * if enter = 0 then allow the command to be edited
 * if enter = 1 then don't wait for editing
 */
void owl_function_reply(int type, int enter)
{
  char *buff=NULL, *oldbuff;
  owl_message *m;
  owl_filter *f;
  
  if (owl_view_get_size(owl_global_get_current_view(&g))==0) {
    owl_function_error("No message selected");
  } else {
    char *class, *inst, *to, *cc=NULL;
    
    m=owl_view_get_element(owl_global_get_current_view(&g), owl_global_get_curmsg(&g));
    if (!m) {
      owl_function_error("No message selected");
      return;
    }

    /* first check if we catch the reply-lockout filter */
    f=owl_global_get_filter(&g, "reply-lockout");
    if (f) {
      if (owl_filter_message_match(f, m)) {
        owl_function_error("Sorry, replies to this message have been disabled by the reply-lockout filter");
        return;
      }
    }

    /* loopback */
    if (owl_message_is_type_loopback(m)) {
      owl_function_loopwrite_setup();
      return;
    }

    /* zephyr */
    if (owl_message_is_type_zephyr(m)) {
      /* if it's a zephyr we sent, send it out the same way again */
      if (owl_message_is_direction_out(m)) {
          buff = owl_strdup(owl_message_get_zwriteline(m));
      } else {

        /* Special case a personal reply to a webzephyr user on a class */
        if ((type==1) && !strcasecmp(owl_message_get_opcode(m), OWL_WEBZEPHYR_OPCODE)) {
          class=OWL_WEBZEPHYR_CLASS;
          inst=owl_message_get_sender(m);
          to=OWL_WEBZEPHYR_PRINCIPAL;
        } else if (!strcasecmp(owl_message_get_class(m), OWL_WEBZEPHYR_CLASS) && owl_message_is_loginout(m)) {
          /* Special case LOGIN/LOGOUT notifications on class "webzephyr" */
          class=OWL_WEBZEPHYR_CLASS;
          inst=owl_message_get_instance(m);
          to=OWL_WEBZEPHYR_PRINCIPAL;
        } else if (owl_message_is_loginout(m)) {
          /* Normal LOGIN/LOGOUT messages */
          class="MESSAGE";
          inst="PERSONAL";
          to=owl_message_get_sender(m);
        } else if (type==1) {
          /* Personal reply */
          class="MESSAGE";
          inst="PERSONAL";
          to=owl_message_get_sender(m);
        } else {
          /* General reply */
          class=owl_message_get_class(m);
          inst=owl_message_get_instance(m);
          to=owl_message_get_recipient(m);
          cc=owl_message_get_cc_without_recipient(m);
          if (!strcmp(to, "") || !strcmp(to, "*")) {
            to="";
          } else if (to[0]=='@') {
            /* leave it, to get the realm */
          } else {
            to=owl_message_get_sender(m);
          }
        }

        /* create the command line */
        if (!strcasecmp(owl_message_get_opcode(m), "CRYPT")) {
          buff=owl_strdup("zcrypt");
        } else {
          buff = owl_strdup("zwrite");
        }
        if (strcasecmp(class, "message")) {
          buff = owl_sprintf("%s -c %s%s%s", oldbuff=buff, owl_getquoting(class), class, owl_getquoting(class));
          owl_free(oldbuff);
        }
        if (strcasecmp(inst, "personal")) {
          buff = owl_sprintf("%s -i %s%s%s", oldbuff=buff, owl_getquoting(inst), inst, owl_getquoting(inst));
          owl_free(oldbuff);
        }
        if (*to != '\0') {
          char *tmp, *oldtmp, *tmp2;
          tmp=short_zuser(to);
          if (cc) {
            tmp = owl_util_uniq(oldtmp=tmp, cc, "-");
            owl_free(oldtmp);
            buff = owl_sprintf("%s -C %s", oldbuff=buff, tmp);
            owl_free(oldbuff);
          } else {
            if (owl_global_is_smartstrip(&g)) {
              tmp2=tmp;
              tmp=owl_zephyr_smartstripped_user(tmp2);
              owl_free(tmp2);
            }
            buff = owl_sprintf("%s %s", oldbuff=buff, tmp);
            owl_free(oldbuff);
          }
          owl_free(tmp);
        }
        if (cc) owl_free(cc);
      }
    } else {
      char *cmd;
      if((type==0 && (cmd=owl_message_get_attribute_value(m, "replycmd")))
         || (type==1 && (cmd=owl_message_get_attribute_value(m, "replysendercmd")))) {
        buff = owl_strdup(cmd);
      }
    }

    if(!buff) {
        owl_function_error("I don't know how to reply to that message.");
        return;
    }
    
    if (enter) {
      owl_history *hist = owl_global_get_cmd_history(&g);
      owl_history_store(hist, buff);
      owl_history_reset(hist);
      owl_function_command_norv(buff);
    } else {
      owl_function_start_command(buff);
    }
    owl_free(buff);
  }
}

void owl_function_zlocate(int argc, char **argv, int auth)
{
  owl_fmtext fm;
  char *ptr, buff[LINE];
  int i;

  owl_fmtext_init_null(&fm);

  for (i=0; i<argc; i++) {
    ptr=long_zuser(argv[i]);
    owl_zephyr_zlocate(ptr, buff, auth);
    owl_fmtext_append_normal(&fm, buff);
    owl_free(ptr);
  }

  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_start_command(char *line)
{
  owl_editwin *tw;

  tw=owl_global_get_typwin(&g);
  owl_global_set_typwin_active(&g);
  owl_editwin_new_style(tw, OWL_EDITWIN_STYLE_ONELINE, 
                        owl_global_get_cmd_history(&g));

  owl_editwin_set_locktext(tw, "command: ");
  owl_global_set_needrefresh(&g);

  owl_editwin_insert_string(tw, line);
  owl_editwin_redisplay(tw, 0);

  owl_context_set_editline(owl_global_get_context(&g), tw);
  owl_function_activate_keymap("editline");
}

void owl_function_start_question(char *line)
{
  owl_editwin *tw;

  tw=owl_global_get_typwin(&g);
  owl_global_set_typwin_active(&g);
  owl_editwin_new_style(tw, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));

  owl_editwin_set_locktext(tw, line);
  owl_global_set_needrefresh(&g);

  owl_editwin_redisplay(tw, 0);

  owl_context_set_editresponse(owl_global_get_context(&g), tw);
  owl_function_activate_keymap("editresponse");
}

void owl_function_start_password(char *line)
{
  owl_editwin *tw;

  tw=owl_global_get_typwin(&g);
  owl_global_set_typwin_active(&g);
  owl_editwin_new_style(tw, OWL_EDITWIN_STYLE_ONELINE, owl_global_get_cmd_history(&g));
  owl_editwin_set_echochar(tw, '*');

  owl_editwin_set_locktext(tw, line);
  owl_global_set_needrefresh(&g);

  owl_editwin_redisplay(tw, 0);

  owl_context_set_editresponse(owl_global_get_context(&g), tw);
  owl_function_activate_keymap("editresponse");
}

char *owl_function_exec(int argc, char **argv, char *buff, int type)
{
  /* if type == 1 display in a popup
   * if type == 2 display an admin messages
   * if type == 0 return output
   * else display in a popup
   */
  char *newbuff, *redirect = " 2>&1 < /dev/null";
  char *out, buff2[1024];
  int size;
  FILE *p;

#if OWL_STDERR_REDIR
  redirect = " < /dev/null";
#endif 

  if (argc<2) {
    owl_function_error("Wrong number of arguments to the exec command");
    return NULL;
  }

  buff = skiptokens(buff, 1);
  newbuff = owl_malloc(strlen(buff)+strlen(redirect)+1);
  strcpy(newbuff, buff);
  strcat(newbuff, redirect);

  if (type == 1) {
    owl_popexec_new(newbuff);
  } else {
    p=popen(newbuff, "r");
    out=owl_malloc(1024);
    size=1024;
    strcpy(out, "");
    while (fgets(buff2, 1024, p)!=NULL) {
      size+=1024;
      out=owl_realloc(out, size);
      strcat(out, buff2);
    }
    pclose(p);
    
    if (type==1) {
      owl_function_popless_text(out);
    } else if (type==0) {
      return out;
    } else if (type==2) {
      owl_function_adminmsg(buff, out);
    } else {
      owl_function_popless_text(out);
    }
    owl_free(out);
  }
  return NULL;
}

char *owl_function_perl(int argc, char **argv, char *buff, int type)
{
  /* if type == 1 display in a popup
   * if type == 2 display an admin messages
   * if type == 0 return output
   * else display in a popup
   */
  char *perlout;

  if (argc<2) {
    owl_function_error("Wrong number of arguments to perl command");
    return NULL;
  }

  /* consume first token (argv[0]) */
  buff = skiptokens(buff, 1);

  perlout = owl_perlconfig_execute(buff);
  if (perlout) { 
    if (type==1) {
      owl_function_popless_text(perlout);
    } else if (type==2) {
      owl_function_adminmsg(buff, perlout);
    } else if (type==0) {
      return perlout;
    } else {
      owl_function_popless_text(perlout);
    }
    owl_free(perlout);
  }
  return NULL;
}

/* Change the filter associated with the current view.
 * This also figures out which message in the new filter
 * should have the pointer.
 */
void owl_function_change_currentview_filter(char *filtname)
{
  owl_view *v;
  owl_filter *f;
  int curid=-1, newpos, curmsg;
  owl_message *curm=NULL;

  v=owl_global_get_current_view(&g);

  curmsg=owl_global_get_curmsg(&g);
  if (curmsg==-1) {
    owl_function_debugmsg("Hit the curmsg==-1 case in change_view");
  } else {
    curm=owl_view_get_element(v, curmsg);
    if (curm) {
      curid=owl_message_get_id(curm);
      owl_view_save_curmsgid(v, curid);
    }
  }

  f=owl_global_get_filter(&g, filtname);
  if (!f) {
    owl_function_error("Unknown filter %s", filtname);
    return;
  }

  owl_view_new_filter(v, f);

  /* Figure out what to set the current message to.
   * - If the view we're leaving has messages in it, go to the closest message
   *   to the last message pointed to in that view. 
   * - If the view we're leaving is empty, try to restore the position
   *   from the last time we were in the new view.  */
  if (curm) {
    newpos = owl_view_get_nearest_to_msgid(v, curid);
  } else {
    newpos = owl_view_get_nearest_to_saved(v);
  }

  owl_global_set_curmsg(&g, newpos);
  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  owl_global_set_direction_downwards(&g);
}

/* Create a new filter, or replace an existing one
 * with a new definition.
 */
void owl_function_create_filter(int argc, char **argv)
{
  owl_filter *f;
  owl_view *v;
  int ret, inuse=0;

  if (argc < 2) {
    owl_function_error("Wrong number of arguments to filter command");
    return;
  }

  owl_function_debugmsg("owl_function_create_filter: starting to create filter named %s", argv[1]);

  v=owl_global_get_current_view(&g);

  /* don't touch the all filter */
  if (!strcmp(argv[1], "all")) {
    owl_function_error("You may not change the 'all' filter.");
    return;
  }

  /* deal with the case of trying change the filter color */
  if (argc==4 && !strcmp(argv[2], "-c")) {
    f=owl_global_get_filter(&g, argv[1]);
    if (!f) {
      owl_function_error("The filter '%s' does not exist.", argv[1]);
      return;
    }
    if (owl_util_string_to_color(argv[3])==-1) {
      owl_function_error("The color '%s' is not available.", argv[3]);
      return;
    }
    owl_filter_set_fgcolor(f, owl_util_string_to_color(argv[3]));
    owl_global_set_needrefresh(&g);
    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
    return;
  }
  if (argc==4 && !strcmp(argv[2], "-b")) {
    f=owl_global_get_filter(&g, argv[1]);
    if (!f) {
      owl_function_error("The filter '%s' does not exist.", argv[1]);
      return;
    }
    if (owl_util_string_to_color(argv[3])==-1) {
      owl_function_error("The color '%s' is not available.", argv[3]);
      return;
    }
    owl_filter_set_bgcolor(f, owl_util_string_to_color(argv[3]));
    owl_global_set_needrefresh(&g);
    owl_mainwin_redisplay(owl_global_get_mainwin(&g));
    return;
  }

  /* create the filter and check for errors */
  f=owl_malloc(sizeof(owl_filter));
  ret=owl_filter_init(f, argv[1], argc-2, argv+2);
  if (ret==-1) {
    owl_free(f);
    owl_function_error("Invalid filter");
    return;
  }

  /* if the named filter is in use by the current view, remember it */
  if (!strcmp(owl_view_get_filtname(v), argv[1])) {
    inuse=1;
  }

  /* if the named filter already exists, nuke it */
  if (owl_global_get_filter(&g, argv[1])) {
    owl_global_remove_filter(&g, argv[1]);
  }

  /* add the filter */
  owl_global_add_filter(&g, f);

  /* if it was in use by the current view then update */
  if (inuse) {
    owl_function_change_currentview_filter(argv[1]);
  }
  owl_global_set_needrefresh(&g);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
}

/* If 'filtername' does not start with 'not-' create a filter named
 * 'not-<filtername>' defined as "not filter <filtername>".  If the
 * filter 'not-<filtername>' already exists, do not overwrite it.  If
 * 'filtername' begins with 'not-' and a filter 'filtername' already
 * exists, then do nothing.  If the filter 'filtername' does not
 * exist, create it and define it as 'not filter <filtername>'
 *
 * Returns the name of the negated filter, which the caller must free.
 */
char *owl_function_create_negative_filter(char *filtername)
{
  char *newname;
  owl_filter *tmpfilt;
  char *argv[5];

  owl_function_debugmsg("owl_function_create_negative_filter");
  
  if (!strncmp(filtername, "not-", 4)) {
    newname=owl_strdup(filtername+4);
  } else {
    newname=owl_sprintf("not-%s", filtername);
  }

  tmpfilt=owl_global_get_filter(&g, newname);
  if (!tmpfilt) {
    argv[0]="filter"; /* anything is fine here */
    argv[1]=newname;
    argv[2]="not";
    argv[3]="filter";
    argv[4]=filtername;
    owl_function_create_filter(5, argv);
  }

  owl_function_debugmsg("owl_function_create_negative_filter: returning with %s", newname);
  return(newname);
}

void owl_function_show_filters()
{
  owl_list *l;
  owl_filter *f;
  int i, j;
  owl_fmtext fm;

  owl_fmtext_init_null(&fm);

  l=owl_global_get_filterlist(&g);
  j=owl_list_get_size(l);

  owl_fmtext_append_bold(&fm, "Filters:\n");

  for (i=0; i<j; i++) {
    f=owl_list_get_element(l, i);
    owl_fmtext_append_normal(&fm, "   ");
    if (owl_global_get_hascolors(&g)) {
      owl_fmtext_append_normal_color(&fm, owl_filter_get_name(f), owl_filter_get_fgcolor(f), owl_filter_get_bgcolor(f));
    } else {
      owl_fmtext_append_normal(&fm, owl_filter_get_name(f));
    }
    owl_fmtext_append_normal(&fm, "\n");
  }
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_show_filter(char *name)
{
  owl_filter *f;
  char buff[5000];

  f=owl_global_get_filter(&g, name);
  if (!f) {
    owl_function_error("There is no filter named %s", name);
    return;
  }
  owl_filter_print(f, buff);
  owl_function_popless_text(buff);
}

void owl_function_show_zpunts()
{
  owl_filter *f;
  owl_list *fl;
  char buff[5000];
  owl_fmtext fm;
  int i, j;

  owl_fmtext_init_null(&fm);

  fl=owl_global_get_puntlist(&g);
  j=owl_list_get_size(fl);
  owl_fmtext_append_bold(&fm, "Active zpunt filters:\n");

  for (i=0; i<j; i++) {
    f=owl_list_get_element(fl, i);
    snprintf(buff, sizeof(buff), "[% 2d] ", i+1);
    owl_fmtext_append_normal(&fm, buff);
    owl_filter_print(f, buff);
    owl_fmtext_append_normal(&fm, buff);
  }
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

/* Create a filter for a class, instance if one doesn't exist.  If
 * instance is NULL then catch all messgaes in the class.  Returns the
 * name of the filter, which the caller must free.
 */
char *owl_function_classinstfilt(char *c, char *i) 
{
  owl_list *fl;
  owl_filter *f;
  char *argbuff, *filtname;
  char *tmpclass, *tmpinstance = NULL;
  char *class, *instance = NULL;
  int len;

  class = owl_util_baseclass(c);
  if(i) {
    instance = owl_util_baseclass(i);
  }

  fl=owl_global_get_filterlist(&g);

  /* name for the filter */
  len=strlen(class)+30;
  if (instance) len+=strlen(instance);
  filtname=owl_malloc(len);
  if (!instance) {
    sprintf(filtname, "class-%s", class);
  } else {
    sprintf(filtname, "class-%s-instance-%s", class, instance);
  }
  /* downcase it */
  {
    char *temp = g_utf8_strdown(filtname, -1);
    if (temp) {
      owl_free(filtname);
      filtname = temp;
    }
  }
  /* turn spaces, single quotes, and double quotes into dots */
  owl_text_tr(filtname, ' ', '.');
  owl_text_tr(filtname, '\'', '.');
  owl_text_tr(filtname, '"', '.');
  
  /* if it already exists then go with it.  This lets users override */
  if (owl_global_get_filter(&g, filtname)) {
    return(filtname);
  }

  /* create the new filter */
  tmpclass=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
  owl_text_tr(tmpclass, ' ', '.');
  owl_text_tr(tmpclass, '\'', '.');
  owl_text_tr(tmpclass, '"', '.');
  if (instance) {
    tmpinstance=owl_text_quote(instance, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
    owl_text_tr(tmpinstance, ' ', '.');
    owl_text_tr(tmpinstance, '\'', '.');
    owl_text_tr(tmpinstance, '"', '.');
  }
  len = strlen(tmpclass);
  if(tmpinstance) len += strlen(tmpinstance);
  len += 60;
  argbuff = owl_malloc(len);
  sprintf(argbuff, "class ^(un)*%s(\\.d)*$", tmpclass);
  if (tmpinstance) {
    sprintf(argbuff, "%s and ( instance ^(un)*%s(\\.d)*$ )", argbuff, tmpinstance);
  }
  owl_free(tmpclass);
  if (tmpinstance) owl_free(tmpinstance);

  f=owl_malloc(sizeof(owl_filter));
  owl_filter_init_fromstring(f, filtname, argbuff);

  /* add it to the global list */
  owl_global_add_filter(&g, f);

  owl_free(argbuff);
  owl_free(class);
  if (instance) {
    owl_free(instance);
  }
  return(filtname);
}

/* Create a filter for personal zephyrs to or from the specified
 * zephyr user.  Includes login/logout notifications for the user.
 * The name of the filter will be 'user-<user>'.  If a filter already
 * exists with this name, no new filter will be created.  This allows
 * the configuration to override this function.  Returns the name of
 * the filter, which the caller must free.
 */
char *owl_function_zuserfilt(char *user)
{
  owl_filter *f;
  char *argbuff, *longuser, *shortuser, *filtname;

  /* stick the local realm on if it's not there */
  longuser=long_zuser(user);
  shortuser=short_zuser(user);

  /* name for the filter */
  filtname=owl_malloc(strlen(shortuser)+20);
  sprintf(filtname, "user-%s", shortuser);

  /* if it already exists then go with it.  This lets users override */
  if (owl_global_get_filter(&g, filtname)) {
    return(owl_strdup(filtname));
  }

  /* create the new-internal filter */
  f=owl_malloc(sizeof(owl_filter));

  argbuff=owl_malloc(strlen(longuser)+1000);
  sprintf(argbuff, "( type ^zephyr$ and filter personal and ");
  sprintf(argbuff, "%s ( ( direction ^in$ and sender ^%s$ ) or ( direction ^out$ and recipient ^%s$ ) ) )", argbuff, longuser, longuser);
  sprintf(argbuff, "%s or ( ( class ^login$ ) and ( sender ^%s$ ) )", argbuff, longuser);

  owl_filter_init_fromstring(f, filtname, argbuff);

  /* add it to the global list */
  owl_global_add_filter(&g, f);

  /* free stuff */
  owl_free(argbuff);
  owl_free(longuser);
  owl_free(shortuser);

  return(filtname);
}

char *owl_function_typefilt(char *type)
{
  owl_filter *f;
  char *argbuff, *filtname;

  /* name for the filter */
  filtname=owl_sprintf("type-%s", type);

  /* if it already exists then go with it.  This lets users override */
  if (owl_global_get_filter(&g, filtname)) {
    return filtname;
  }

  /* create the new-internal filter */
  f=owl_malloc(sizeof(owl_filter));

  argbuff = owl_sprintf("type ^%s$", type);

  owl_filter_init_fromstring(f, filtname, argbuff);

  /* add it to the global list */
  owl_global_add_filter(&g, f);

  /* free stuff */
  owl_free(argbuff);

  return filtname;
}

/* If flag is 1, marks for deletion.  If flag is 0,
 * unmarks for deletion. */
void owl_function_delete_curview_msgs(int flag)
{
  owl_view *v;
  int i, j;

  v=owl_global_get_current_view(&g);
  j=owl_view_get_size(v);
  for (i=0; i<j; i++) {
    if (flag == 1) {
      owl_message_mark_delete(owl_view_get_element(v, i));
    } else if (flag == 0) {
      owl_message_unmark_delete(owl_view_get_element(v, i));
    }
  }

  owl_function_makemsg("%i messages marked for %sdeletion", j, flag?"":"un");

  owl_mainwin_redisplay(owl_global_get_mainwin(&g));  
}

/* Create a filter based on the current message.  Returns the name of
 * a filter or null.  The caller must free this name.
 *
 * if the curmsg is a personal zephyr return a filter name
 *    to the zephyr converstaion with that user.
 * If the curmsg is a zephyr class message, instance foo, recip *,
 *    return a filter name to the class, inst.
 * If the curmsg is a zephyr class message and type==0 then 
 *    return a filter name for just the class.
 * If the curmsg is a zephyr class message and type==1 then 
 *    return a filter name for the class and instance.
 * If the curmsg is a personal AIM message returna  filter
 *    name to the AIM conversation with that user 
 */
char *owl_function_smartfilter(int type)
{
  owl_view *v;
  owl_message *m;
  char *zperson, *filtname=NULL;
  char *argv[1];
  
  v=owl_global_get_current_view(&g);
  m=owl_view_get_element(v, owl_global_get_curmsg(&g));

  if (!m || owl_view_get_size(v)==0) {
    owl_function_error("No message selected\n");
    return(NULL);
  }

  /* very simple handling of admin messages for now */
  if (owl_message_is_type_admin(m)) {
    return(owl_function_typefilt("admin"));
  }

  /* very simple handling of loopback messages for now */
  if (owl_message_is_type_loopback(m)) {
    return(owl_function_typefilt("loopback"));
  }

  /* narrow personal and login messages to the sender or recip as appropriate */
  if (owl_message_is_type_zephyr(m)) {
    if (owl_message_is_personal(m) || owl_message_is_loginout(m)) {
      if (owl_message_is_direction_in(m)) {
        zperson=short_zuser(owl_message_get_sender(m));
      } else {
        zperson=short_zuser(owl_message_get_recipient(m));
      }
      filtname=owl_function_zuserfilt(zperson);
      owl_free(zperson);
      return(filtname);
    }

    /* narrow class MESSAGE, instance foo, recip * messages to class, inst */
    if (!strcasecmp(owl_message_get_class(m), "message")) {
      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m));
      return(filtname);
    }

    /* otherwise narrow to the class */
    if (type==0) {
      filtname=owl_function_classinstfilt(owl_message_get_class(m), NULL);
    } else if (type==1) {
      filtname=owl_function_classinstfilt(owl_message_get_class(m), owl_message_get_instance(m));
    }
    return(filtname);
  }

  /* pass it off to perl */
  if(type) {
    argv[0] = "-i";
  };
  return owl_perlconfig_message_call_method(m, "smartfilter", type ? 1 : 0, argv);
}

void owl_function_smartzpunt(int type)
{
  /* Starts a zpunt command based on the current class,instance pair. 
   * If type=0, uses just class.  If type=1, uses instance as well. */
  owl_view *v;
  owl_message *m;
  char *cmd, *cmdprefix, *mclass, *minst;
  
  v=owl_global_get_current_view(&g);
  m=owl_view_get_element(v, owl_global_get_curmsg(&g));

  if (!m || owl_view_get_size(v)==0) {
    owl_function_error("No message selected\n");
    return;
  }

  /* for now we skip admin messages. */
  if (owl_message_is_type_admin(m)
      || owl_message_is_loginout(m)
      || !owl_message_is_type_zephyr(m)) {
    owl_function_error("smartzpunt doesn't support this message type.");
    return;
  }

  mclass = owl_message_get_class(m);
  minst = owl_message_get_instance(m);
  if (!mclass || !*mclass || *mclass==' '
      || (!strcasecmp(mclass, "message") && !strcasecmp(minst, "personal"))
      || (type && (!minst || !*minst|| *minst==' '))) {
    owl_function_error("smartzpunt can't safely do this for <%s,%s>",
                         mclass, minst);
  } else {
    cmdprefix = "start-command zpunt ";
    cmd = owl_malloc(strlen(cmdprefix)+strlen(mclass)+strlen(minst)+10);
    strcpy(cmd, cmdprefix);
    strcat(cmd, owl_getquoting(mclass));
    strcat(cmd, mclass);
    strcat(cmd, owl_getquoting(mclass));
    if (type) {
      strcat(cmd, " ");
      strcat(cmd, owl_getquoting(minst));
      strcat(cmd, minst);
      strcat(cmd, owl_getquoting(minst));
    } else {
      strcat(cmd, " *");
    }
    owl_function_command(cmd);
    owl_free(cmd);
  }
}

/* Set the color of the current view's filter to
 * be 'color'
 */
void owl_function_color_current_filter(char *fgcolor, char *bgcolor)
{
  char *name;

  name=owl_view_get_filtname(owl_global_get_current_view(&g));
  owl_function_color_filter(name, fgcolor, bgcolor);
}

/* Set the color of the filter 'filter' to be 'color'.  If the color
 * name does not exist, return -1, if the filter does not exist or is
 * the "all" filter, return -2.  Return 0 on success
 */
int owl_function_color_filter(char *filtname, char *fgcolor, char *bgcolor)
{
  owl_filter *f;

  f=owl_global_get_filter(&g, filtname);
  if (!f) {
    owl_function_error("Unknown filter");
    return(-2);
  }

  /* don't touch the all filter */
  if (!strcmp(filtname, "all")) {
    owl_function_error("You may not change the 'all' filter.");
    return(-2);
  }

  if (owl_util_string_to_color(fgcolor)==-1) {
    owl_function_error("No color named '%s' avilable.", fgcolor);
    return(-1);
  }


  if (bgcolor != NULL) {
    if (owl_util_string_to_color(bgcolor)==-1) {
      owl_function_error("No color named '%s' avilable.", bgcolor);
      return(-1);
    }
    owl_filter_set_bgcolor(f, owl_util_string_to_color(bgcolor));
  }
  owl_filter_set_fgcolor(f, owl_util_string_to_color(fgcolor));
  
  owl_global_set_needrefresh(&g);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  return(0);
}

void owl_function_show_colors()
{
  owl_fmtext fm;
  int i; 
  
  owl_fmtext_init_null(&fm);
  owl_fmtext_append_normal(&fm, "default: ");
  owl_fmtext_append_normal_color(&fm, "default\n", OWL_COLOR_DEFAULT, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"red:      ");
  owl_fmtext_append_normal_color(&fm, "red\n", OWL_COLOR_RED, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"green:    ");
  owl_fmtext_append_normal_color(&fm, "green\n", OWL_COLOR_GREEN, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"yellow:   ");
  owl_fmtext_append_normal_color(&fm, "yellow\n", OWL_COLOR_YELLOW, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"blue:     ");
  owl_fmtext_append_normal_color(&fm, "blue\n", OWL_COLOR_BLUE, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"magenta:  ");
  owl_fmtext_append_normal_color(&fm, "magenta\n", OWL_COLOR_MAGENTA, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"cyan:     ");
  owl_fmtext_append_normal_color(&fm, "cyan\n", OWL_COLOR_CYAN, OWL_COLOR_DEFAULT);

  owl_fmtext_append_normal(&fm,"white:    ");
  owl_fmtext_append_normal_color(&fm, "white\n", OWL_COLOR_WHITE, OWL_COLOR_DEFAULT);

  for(i = 8; i < COLORS; ++i) {
    char* str1 = owl_sprintf("%4i:     ",i);
    char* str2 = owl_sprintf("%i\n",i);
    owl_fmtext_append_normal(&fm,str1);
    owl_fmtext_append_normal_color(&fm, str2, i, OWL_COLOR_DEFAULT);
    owl_free(str1);
     owl_free(str2);
  }
  
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

/* add the given class, inst, recip to the punt list for filtering.
 *   if direction==0 then punt
 *   if direction==1 then unpunt
 */
void owl_function_zpunt(char *class, char *inst, char *recip, int direction)
{
  char *buff;
  char *quoted;

  buff=owl_malloc(strlen(class)+strlen(inst)+strlen(recip)+100);
  strcpy(buff, "class");
  if (!strcmp(class, "*")) {
    strcat(buff, " .*");
  } else {
    quoted=owl_text_quote(class, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
    owl_text_tr(quoted, ' ', '.');
    owl_text_tr(quoted, '\'', '.');
    owl_text_tr(quoted, '"', '.');
    sprintf(buff, "%s ^(un)*%s(\\.d)*$", buff, quoted);
    owl_free(quoted);
  }
  if (!strcmp(inst, "*")) {
    strcat(buff, " and instance .*");
  } else {
    quoted=owl_text_quote(inst, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
    owl_text_tr(quoted, ' ', '.');
    owl_text_tr(quoted, '\'', '.');
    owl_text_tr(quoted, '"', '.');
    sprintf(buff, "%s and instance ^(un)*%s(\\.d)*$", buff, quoted);
    owl_free(quoted);
  }
  if (strcmp(recip, "*")) {
    quoted=owl_text_quote(recip, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
    owl_text_tr(quoted, ' ', '.');
    owl_text_tr(quoted, '\'', '.');
    owl_text_tr(quoted, '"', '.');
    sprintf(buff, "%s and recipient ^%s$", buff, quoted);
    owl_free(quoted);
  }

  owl_function_punt(buff, direction);
  owl_free(buff);
}

void owl_function_punt(char *filter, int direction)
{
  owl_filter *f;
  owl_list *fl;
  int ret, i, j;
  fl=owl_global_get_puntlist(&g);

  /* first, create the filter */
  f=malloc(sizeof(owl_filter));

  owl_function_debugmsg("About to filter %s", filter);
  ret=owl_filter_init_fromstring(f, "punt-filter", filter);
  if (ret) {
    owl_function_error("Error creating filter for zpunt");
    owl_filter_free(f);
    return;
  }

  /* Check for an identical filter */
  j=owl_list_get_size(fl);
  for (i=0; i<j; i++) {
    if (owl_filter_equiv(f, owl_list_get_element(fl, i))) {
      owl_function_debugmsg("found an equivalent punt filter");
      /* if we're punting, then just silently bow out on this duplicate */
      if (direction==0) {
        owl_filter_free(f);
        return;
      }

      /* if we're unpunting, then remove this filter from the puntlist */
      if (direction==1) {
        owl_filter_free(owl_list_get_element(fl, i));
        owl_list_remove_element(fl, i);
        owl_filter_free(f);
        return;
      }
    }
  }

  owl_function_debugmsg("punting");
  /* If we're punting, add the filter to the global punt list */
  if (direction==0) {
    owl_list_append_element(fl, f);
  }
}

void owl_function_activate_keymap(char *keymap)
{
  if (!owl_keyhandler_activate(owl_global_get_keyhandler(&g), keymap)) {
    owl_function_error("Unable to activate keymap '%s'", keymap);
  }
}

void owl_function_show_keymaps()
{
  owl_list l;
  owl_fmtext fm;
  owl_keymap *km;
  owl_keyhandler *kh;
  int i, numkm;
  char *kmname;

  kh = owl_global_get_keyhandler(&g);
  owl_fmtext_init_null(&fm);
  owl_fmtext_append_bold(&fm, "Keymaps:   ");
  owl_fmtext_append_normal(&fm, "(use 'show keymap <name>' for details)\n");
  owl_keyhandler_get_keymap_names(kh, &l);
  owl_fmtext_append_list(&fm, &l, "\n", owl_function_keymap_summary);
  owl_fmtext_append_normal(&fm, "\n");

  numkm = owl_list_get_size(&l);
  for (i=0; i<numkm; i++) {
    kmname = owl_list_get_element(&l, i);
    km = owl_keyhandler_get_keymap(kh, kmname);
    owl_fmtext_append_bold(&fm, "\n\n----------------------------------------------------------------------------------------------------\n\n");
    owl_keymap_get_details(km, &fm);    
  }
  owl_fmtext_append_normal(&fm, "\n");
  
  owl_function_popless_fmtext(&fm);
  owl_keyhandler_keymap_namelist_free(&l);
  owl_fmtext_free(&fm);
}

char *owl_function_keymap_summary(void *name)
{
  owl_keymap *km 
    = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
  if (km) return owl_keymap_summary(km);
  else return(NULL);
}

/* TODO: implement for real */
void owl_function_show_keymap(char *name)
{
  owl_fmtext fm;
  owl_keymap *km;

  owl_fmtext_init_null(&fm);
  km = owl_keyhandler_get_keymap(owl_global_get_keyhandler(&g), name);
  if (km) {
    owl_keymap_get_details(km, &fm);
  } else {
    owl_fmtext_append_normal(&fm, "No such keymap...\n");
  }  
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

void owl_function_help_for_command(char *cmdname)
{
  owl_fmtext fm;

  owl_fmtext_init_null(&fm);
  owl_cmd_get_help(owl_global_get_cmddict(&g), cmdname, &fm);
  owl_function_popless_fmtext(&fm);  
  owl_fmtext_free(&fm);
}

void owl_function_search_start(char *string, int direction)
{
  /* direction is OWL_DIRECTION_DOWNWARDS or OWL_DIRECTION_UPWARDS */
  owl_global_set_search_active(&g, string);
  owl_function_search_helper(0, direction);
}

void owl_function_search_continue(int direction)
{
  /* direction is OWL_DIRECTION_DOWNWARDS or OWL_DIRECTION_UPWARDS */
  owl_function_search_helper(1, direction);
}

void owl_function_search_helper(int mode, int direction)
{
  /* move to a message that contains the string.  If direction is
   * OWL_DIRECTION_DOWNWARDS then search fowards, if direction is
   * OWL_DIRECTION_UPWARDS then search backwards.
   *
   * If mode==0 then it will stay on the current message if it
   * contains the string.
   */

  owl_view *v;
  int viewsize, i, curmsg, start;
  owl_message *m;

  v=owl_global_get_current_view(&g);
  viewsize=owl_view_get_size(v);
  curmsg=owl_global_get_curmsg(&g);
  
  if (viewsize==0) {
    owl_function_error("No messages present");
    return;
  }

  if (mode==0) {
    start=curmsg;
  } else if (direction==OWL_DIRECTION_DOWNWARDS) {
    start=curmsg+1;
  } else {
    start=curmsg-1;
  }

  /* bounds check */
  if (start>=viewsize || start<0) {
    owl_function_error("No further matches found");
    return;
  }

  for (i=start; i<viewsize && i>=0;) {
    m=owl_view_get_element(v, i);
    if (owl_message_search(m, owl_global_get_search_string(&g))) {
      owl_global_set_curmsg(&g, i);
      owl_function_calculate_topmsg(direction);
      owl_mainwin_redisplay(owl_global_get_mainwin(&g));
      if (direction==OWL_DIRECTION_DOWNWARDS) {
        owl_global_set_direction_downwards(&g);
      } else {
        owl_global_set_direction_upwards(&g);
      }
      return;
    }
    if (direction==OWL_DIRECTION_DOWNWARDS) {
      i++;
    } else {
      i--;
    }
  }
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
  owl_function_error("No matches found");
}

/* strips formatting from ztext and returns the unformatted text. 
 * caller is responsible for freeing. */
char *owl_function_ztext_stylestrip(char *zt)
{
  owl_fmtext fm;
  char *plaintext;

  owl_fmtext_init_null(&fm);
  owl_fmtext_append_ztext(&fm, zt);
  plaintext = owl_fmtext_print_plain(&fm);
  owl_fmtext_free(&fm);
  return(plaintext);
}

/* Popup a buddylisting.  If filename is NULL use the default .anyone */
void owl_function_buddylist(int aim, int zephyr, char *filename)
{
  int i, j, x;
  owl_fmtext fm;
  owl_list anyone;
#ifdef HAVE_LIBZEPHYR
  char *tmp, *user, *line;
  ZLocations_t location[200];
  int numlocs, ret;
#endif

  owl_fmtext_init_null(&fm);

  if (aim && !zephyr)
    owl_fmtext_append_normal(&fm, "Warning: AIM support in C has been disabled.\n");

#ifdef HAVE_LIBZEPHYR
  if (zephyr) {
    if(!owl_global_is_havezephyr(&g)) {
      owl_function_error("Zephyr currently not available.");
    } else {
      owl_fmtext_append_bold(&fm, "Zephyr users logged in:\n");
      owl_list_create(&anyone);
      ret=owl_zephyr_get_anyone_list(&anyone, filename);
      if (ret) {
        owl_fmtext_append_normal(&fm, "  Error opening file for zephyr buddies.\n");
      } else {
        j=owl_list_get_size(&anyone);
        for (i=0; i<j; i++) {
          user=owl_list_get_element(&anyone, i);
          ret=ZLocateUser(user, &numlocs, ZAUTH);
          if (ret!=ZERR_NONE) {
            owl_function_error("Error getting location for %s", user);
            continue;
          }

          numlocs=200;
          ret=ZGetLocations(location, &numlocs);
          if (ret==0) {
            for (x=0; x<numlocs; x++) {
              line=owl_malloc(strlen(location[x].host)+strlen(location[x].time)+strlen(location[x].tty)+100);
              tmp=short_zuser(user);
              sprintf(line, "  %-10.10s %-24.24s %-12.12s  %20.20s\n",
                      tmp,
                      location[x].host,
                      location[x].tty,
                      location[x].time);
              owl_fmtext_append_normal(&fm, line);
              owl_free(tmp);
              owl_free(line);
            }
            if (numlocs>=200) {
              owl_fmtext_append_normal(&fm, "  Too many locations found for this user, truncating.\n");
            }
          }
        }
      }
      owl_list_free_all(&anyone, owl_free);
    } 
  }
#endif

  if(aim && zephyr) {
      if(owl_perlconfig_is_function("BarnOwl::Hooks::_get_blist")) {
          char * perlblist = owl_perlconfig_execute("BarnOwl::Hooks::_get_blist()");
          if(perlblist) {
              owl_fmtext_append_ztext(&fm, perlblist);
              owl_free(perlblist);
          }
      }
  }
  
  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

/* Dump messages in the current view to the file 'filename'. */
void owl_function_dump(char *filename) 
{
  int i, j, count;
  owl_message *m;
  owl_view *v;
  FILE *file;
  char *plaintext;

  v=owl_global_get_current_view(&g);

  /* in the future make it ask yes/no */
  /*
  ret=stat(filename, &sbuf);
  if (!ret) {
    ret=owl_function_askyesno("File exists, continue? [Y/n]");
    if (!ret) return;
  }
  */

  file=fopen(filename, "w");
  if (!file) {
    owl_function_error("Error opening file");
    return;
  }

  count=0;
  j=owl_view_get_size(v);
  for (i=0; i<j; i++) {
    m=owl_view_get_element(v, i);
    plaintext = owl_strip_format_chars(owl_message_get_text(m));
    if (plaintext) {
      fputs(plaintext, file);
      owl_free(plaintext);
    }
  }
  fclose(file);
  owl_function_makemsg("Messages dumped to %s", filename);
}

void owl_function_do_newmsgproc(void)
{
  if (owl_global_get_newmsgproc(&g) && strcmp(owl_global_get_newmsgproc(&g), "")) {
    /* if there's a process out there, we need to check on it */
    if (owl_global_get_newmsgproc_pid(&g)) {
      owl_function_debugmsg("Checking on newmsgproc pid==%i", owl_global_get_newmsgproc_pid(&g));
      owl_function_debugmsg("Waitpid return is %i", waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG));
      waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG);
      if (waitpid(owl_global_get_newmsgproc_pid(&g), NULL, WNOHANG)==-1) {
        /* it exited */
        owl_global_set_newmsgproc_pid(&g, 0);
        owl_function_debugmsg("newmsgproc exited");
      } else {
        owl_function_debugmsg("newmsgproc did not exit");
      }
    }
    
    /* if it exited, fork & exec a new one */
    if (owl_global_get_newmsgproc_pid(&g)==0) {
      int i, myargc;
      i=fork();
      if (i) {
        /* parent set the child's pid */
        owl_global_set_newmsgproc_pid(&g, i);
        owl_function_debugmsg("I'm the parent and I started a new newmsgproc with pid %i", i);
      } else {
        /* child exec's the program */
        char **parsed;
        parsed=owl_parseline(owl_global_get_newmsgproc(&g), &myargc);
        if (myargc < 0) {
          owl_function_debugmsg("Could not parse newmsgproc '%s': unbalanced quotes?", owl_global_get_newmsgproc(&g));
        }
        if (myargc <= 0) {
          _exit(127);
        }
        parsed=owl_realloc(parsed, sizeof(*parsed) * (myargc+1));
        parsed[myargc] = NULL;
        
        owl_function_debugmsg("About to exec \"%s\" with %d arguments", parsed[0], myargc);
        
        execvp(parsed[0], parsed);
        
        
        /* was there an error exec'ing? */
        owl_function_debugmsg("Cannot run newmsgproc '%s': cannot exec '%s': %s", 
                              owl_global_get_newmsgproc(&g), parsed[0], strerror(errno));
        _exit(127);
      }
    }
  }
}

/* print the xterm escape sequence to raise the window */
void owl_function_xterm_raise(void)
{
  printf("\033[5t");
}

/* print the xterm escape sequence to deiconify the window */
void owl_function_xterm_deiconify(void)
{
  printf("\033[1t");
}

/* Add the specified command to the startup file.  Eventually this
 * should be clever, and rewriting settings that will obviosly
 * override earlier settings with 'set' 'bindkey' and 'alias'
 * commands.  For now though we just remove any line that would
 * duplicate this one and then append this line to the end of
 * startupfile.
 */
void owl_function_addstartup(char *buff)
{
  FILE *file;
  char *filename;

  filename=owl_global_get_startupfile(&g);
  file=fopen(filename, "a");
  if (!file) {
    owl_function_error("Error opening startupfile for new command");
    return;
  }

  /* delete earlier copies */
  owl_util_file_deleteline(filename, buff, 1);

  /* add this line */
  fprintf(file, "%s\n", buff);

  fclose(file);
}

/* Remove the specified command from the startup file. */
void owl_function_delstartup(char *buff)
{
  char *filename;
  filename=owl_global_get_startupfile(&g);
  owl_util_file_deleteline(filename, buff, 1);
}

/* Execute owl commands from the given filename.  If the filename
 * is NULL, use the default owl startup commands file.
 */
void owl_function_source(char *filename)
{
  FILE *file;
  char buff[LINE];

  if (!filename) {
    filename=owl_global_get_startupfile(&g);
    file=fopen(filename, "r");
  } else {
    file=fopen(filename, "r");
  }
  if (!file) {
    owl_function_error("Error opening file: %s", filename);
    return;
  }
  while (fgets(buff, LINE, file)!=NULL) {
    if (buff[0] == '#') continue;
    buff[strlen(buff)-1]='\0';
    owl_function_command(buff);
  }
  fclose(file);
}

void owl_function_change_style(owl_view *v, char *stylename)
{
  owl_style *s;

  s=owl_global_get_style_by_name(&g, stylename);
  if (!s) {
    owl_function_error("No style named %s", stylename);
    return;
  }
  owl_view_set_style(v, s);
  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
}

void owl_function_toggleoneline()
{
  owl_view *v;
  owl_style *s;

  v=owl_global_get_current_view(&g);
  s=owl_view_get_style(v);

  if (!owl_style_matches_name(s, "oneline")) {
    owl_function_change_style(v, "oneline");
  } else {
    owl_function_change_style(v, owl_global_get_default_style(&g));
  }

  owl_messagelist_invalidate_formats(owl_global_get_msglist(&g));
  owl_function_calculate_topmsg(OWL_DIRECTION_DOWNWARDS);
  owl_mainwin_redisplay(owl_global_get_mainwin(&g));
}

void owl_function_error(char *fmt, ...)
{
  va_list ap;
  char buff[2048], buff2[2048];
  char *date;
  time_t now;

  now=time(NULL);
  date=owl_strdup(ctime(&now));
  date[strlen(date)-1]='\0';

  va_start(ap, fmt);

  vsnprintf(buff, 2048, fmt, ap);
  sprintf(buff2, "%s %s", date, buff);
  owl_function_debugmsg("ERROR: %s", buff);
  if (owl_global_get_curs_msgwin(&g)) {
    werase(owl_global_get_curs_msgwin(&g));
    waddstr(owl_global_get_curs_msgwin(&g), buff);  
    wnoutrefresh(owl_global_get_curs_msgwin(&g));
    owl_global_set_needrefresh(&g);
  }
  owl_errqueue_append_err(owl_global_get_errqueue(&g), buff2);
  va_end(ap);
  owl_free(date);
}

void owl_function_showerrs()
{
  owl_fmtext fm;

  owl_fmtext_init_null(&fm);
  owl_fmtext_append_normal(&fm, "Errors:\n\n");
  owl_errqueue_to_fmtext(owl_global_get_errqueue(&g), &fm);
  owl_function_popless_fmtext(&fm);
}

void owl_function_makemsg(char *fmt, ...)
{
  va_list ap;
  char buff[2048];

  if (!owl_global_get_curs_msgwin(&g)) return;

  va_start(ap, fmt);
  werase(owl_global_get_curs_msgwin(&g));
  
  vsnprintf(buff, 2048, fmt, ap);
  owl_function_debugmsg("makemsg: %s", buff);
  waddstr(owl_global_get_curs_msgwin(&g), buff);  
  wnoutrefresh(owl_global_get_curs_msgwin(&g));
  owl_global_set_needrefresh(&g);
  va_end(ap);
}

/* get locations for everyone in .anyone.  If 'notify' is '1' then
 * send a pseudo login or logout message for everyone not in sync with
 * the global zephyr buddy list.  The list is updated regardless of
 * the status of 'notify'.
 */
void owl_function_zephyr_buddy_check(int notify)
{
#ifdef HAVE_LIBZEPHYR
  int i, j;
  owl_list anyone;
  owl_message *m;
  owl_zbuddylist *zbl;
  char *user;
  ZLocations_t location[200];
  int numlocs, ret;

  zbl=owl_global_get_zephyr_buddylist(&g);

  owl_list_create(&anyone);
  ret=owl_zephyr_get_anyone_list(&anyone, NULL);

  j=owl_list_get_size(&anyone);
  for (i=0; i<j; i++) {
    user=owl_list_get_element(&anyone, i);
    ret=ZLocateUser(user, &numlocs, ZAUTH);
    if (ret!=ZERR_NONE) {
      owl_function_error("Error getting location for %s", user);
      continue;
    }
    numlocs=200;
    ret=ZGetLocations(location, &numlocs);
    if (ret==0) {
      if ((numlocs>0) && !owl_zbuddylist_contains_user(zbl, user)) {
        /* Send a PSEUDO LOGIN! */
        if (notify) {
          m=owl_malloc(sizeof(owl_message));
          owl_message_create_pseudo_zlogin(m, 0, user, location[0].host, location[0].time, location[0].tty);
          owl_global_messagequeue_addmsg(&g, m);
        }
        owl_zbuddylist_adduser(zbl, user);
        owl_function_debugmsg("owl_function_zephyr_buddy_check: login for %s ", user);
      } else if ((numlocs==0) && owl_zbuddylist_contains_user(zbl, user)) {
        /* I don't think this ever happens (if there are 0 locations we should get an error from
         * ZGetLocations)
         */
        owl_function_error("owl_function_zephyr_buddy_check: exceptional case logout for %s ",user);
      }
    } else if ((ret==ZERR_NOLOCATIONS) && owl_zbuddylist_contains_user(zbl, user)) {
      /* Send a PSEUDO LOGOUT! */
      if (notify) {
        m=owl_malloc(sizeof(owl_message));
        owl_message_create_pseudo_zlogin(m, 1, user, "", "", "");
        owl_global_messagequeue_addmsg(&g, m);
      }
      owl_zbuddylist_deluser(zbl, user);
      owl_function_debugmsg("owl_function_zephyr_buddy_check: logout for %s ",user);
    }
  }

  owl_list_free_all(&anyone, owl_free);
#endif
}

void owl_function_aimsearch_results(char *email, owl_list *namelist)
{
  owl_fmtext fm;
  int i, j;

  owl_fmtext_init_null(&fm);
  owl_fmtext_append_normal(&fm, "AIM screennames associated with ");
  owl_fmtext_append_normal(&fm, email);
  owl_fmtext_append_normal(&fm, ":\n");

  j=owl_list_get_size(namelist);
  for (i=0; i<j; i++) {
    owl_fmtext_append_normal(&fm, "  ");
    owl_fmtext_append_normal(&fm, owl_list_get_element(namelist, i));
    owl_fmtext_append_normal(&fm, "\n");
  }

  owl_function_popless_fmtext(&fm);
  owl_fmtext_free(&fm);
}

int owl_function_get_color_count()
{
     return COLORS;
}