local.c - tmux - Rivoreo Source Code Repositories

 /* $Id: local.c,v 1.11 2007-09-29 14:25:49 nicm Exp $ */

 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */

 #include <sys/types.h>

 #include <curses.h>
 #include <fcntl.h>
 #include <stdlib.h>
 #include <string.h>
 #define TTYDEFCHARS
 #include <termios.h>
 #include <term.h>
 #include <unistd.h>

 #include "tmux.h"

 /*
  * Functions to translate input and write output to the local client terminal.
  * This file should probably be called tty or terminal.c.
  */

 int	local_cmp(const void *, const void *);
 int	local_putc(int);
 void	local_putp(const char *);

 /* Local key types and key codes. */
 struct local_key {
 	const char	*name;
 	char		*string;
 	size_t		 size;
 	int	 	 code;
 };
 struct local_key local_keys[] = {
 	{ "ka1",   NULL, 0, KEYC_A1 },
 	{ "ka3",   NULL, 0, KEYC_A3 },
 	{ "kb2",   NULL, 0, KEYC_B2 },
 /*	{ "kbs",   NULL, 0, KEYC_BACKSPACE }, */
 	{ "kbeg",  NULL, 0, KEYC_BEG },
 	{ "kcbt",  NULL, 0, KEYC_BTAB },
 	{ "kc1",   NULL, 0, KEYC_C1 },
 	{ "kc3",   NULL, 0, KEYC_C3 },
 	{ "kcan",  NULL, 0, KEYC_CANCEL },
 	{ "ktbc",  NULL, 0, KEYC_CATAB },
 	{ "kclr",  NULL, 0, KEYC_CLEAR },
 	{ "kclo",  NULL, 0, KEYC_CLOSE },
 	{ "kcmd",  NULL, 0, KEYC_COMMAND },
 	{ "kcpy",  NULL, 0, KEYC_COPY },
 	{ "kcrt",  NULL, 0, KEYC_CREATE },
 	{ "kctab", NULL, 0, KEYC_CTAB },
 	{ "kdch1", NULL, 0, KEYC_DC },
 	{ "kdl1",  NULL, 0, KEYC_DL },
 	{ "kcud1", NULL, 0, KEYC_DOWN },
 	{ "krmir", NULL, 0, KEYC_EIC },
 	{ "kend",  NULL, 0, KEYC_END },
 	{ "kent",  NULL, 0, KEYC_ENTER },
 	{ "kel",   NULL, 0, KEYC_EOL },
 	{ "ked",   NULL, 0, KEYC_EOS },
 	{ "kext",  NULL, 0, KEYC_EXIT },
 	{ "kf0",   NULL, 0, KEYC_F0 },
 	{ "kf1",   NULL, 0, KEYC_F1 },
 	{ "kf10",  NULL, 0, KEYC_F10 },
 	{ "kf11",  NULL, 0, KEYC_F11 },
 	{ "kf12",  NULL, 0, KEYC_F12 },
 	{ "kf13",  NULL, 0, KEYC_F13 },
 	{ "kf14",  NULL, 0, KEYC_F14 },
 	{ "kf15",  NULL, 0, KEYC_F15 },
 	{ "kf16",  NULL, 0, KEYC_F16 },
 	{ "kf17",  NULL, 0, KEYC_F17 },
 	{ "kf18",  NULL, 0, KEYC_F18 },
 	{ "kf19",  NULL, 0, KEYC_F19 },
 	{ "kf2",   NULL, 0, KEYC_F2 },
 	{ "kf20",  NULL, 0, KEYC_F20 },
 	{ "kf21",  NULL, 0, KEYC_F21 },
 	{ "kf22",  NULL, 0, KEYC_F22 },
 	{ "kf23",  NULL, 0, KEYC_F23 },
 	{ "kf24",  NULL, 0, KEYC_F24 },
 	{ "kf25",  NULL, 0, KEYC_F25 },
 	{ "kf26",  NULL, 0, KEYC_F26 },
 	{ "kf27",  NULL, 0, KEYC_F27 },
 	{ "kf28",  NULL, 0, KEYC_F28 },
 	{ "kf29",  NULL, 0, KEYC_F29 },
 	{ "kf3",   NULL, 0, KEYC_F3 },
 	{ "kf30",  NULL, 0, KEYC_F30 },
 	{ "kf31",  NULL, 0, KEYC_F31 },
 	{ "kf32",  NULL, 0, KEYC_F32 },
 	{ "kf33",  NULL, 0, KEYC_F33 },
 	{ "kf34",  NULL, 0, KEYC_F34 },
 	{ "kf35",  NULL, 0, KEYC_F35 },
 	{ "kf36",  NULL, 0, KEYC_F36 },
 	{ "kf37",  NULL, 0, KEYC_F37 },
 	{ "kf38",  NULL, 0, KEYC_F38 },
 	{ "kf39",  NULL, 0, KEYC_F39 },
 	{ "kf4",   NULL, 0, KEYC_F4 },
 	{ "kf40",  NULL, 0, KEYC_F40 },
 	{ "kf41",  NULL, 0, KEYC_F41 },
 	{ "kf42",  NULL, 0, KEYC_F42 },
 	{ "kf43",  NULL, 0, KEYC_F43 },
 	{ "kf44",  NULL, 0, KEYC_F44 },
 	{ "kf45",  NULL, 0, KEYC_F45 },
 	{ "kf46",  NULL, 0, KEYC_F46 },
 	{ "kf47",  NULL, 0, KEYC_F47 },
 	{ "kf48",  NULL, 0, KEYC_F48 },
 	{ "kf49",  NULL, 0, KEYC_F49 },
 	{ "kf5",   NULL, 0, KEYC_F5 },
 	{ "kf50",  NULL, 0, KEYC_F50 },
 	{ "kf51",  NULL, 0, KEYC_F51 },
 	{ "kf52",  NULL, 0, KEYC_F52 },
 	{ "kf53",  NULL, 0, KEYC_F53 },
 	{ "kf54",  NULL, 0, KEYC_F54 },
 	{ "kf55",  NULL, 0, KEYC_F55 },
 	{ "kf56",  NULL, 0, KEYC_F56 },
 	{ "kf57",  NULL, 0, KEYC_F57 },
 	{ "kf58",  NULL, 0, KEYC_F58 },
 	{ "kf59",  NULL, 0, KEYC_F59 },
 	{ "kf6",   NULL, 0, KEYC_F6 },
 	{ "kf60",  NULL, 0, KEYC_F60 },
 	{ "kf61",  NULL, 0, KEYC_F61 },
 	{ "kf62",  NULL, 0, KEYC_F62 },
 	{ "kf63",  NULL, 0, KEYC_F63 },
 	{ "kf7",   NULL, 0, KEYC_F7 },
 	{ "kf8",   NULL, 0, KEYC_F8 },
 	{ "kf9",   NULL, 0, KEYC_F9 },
 	{ "kfnd",  NULL, 0, KEYC_FIND },
 	{ "khlp",  NULL, 0, KEYC_HELP },
 	{ "khome", NULL, 0, KEYC_HOME },
 	{ "kich1", NULL, 0, KEYC_IC },
 	{ "kil1",  NULL, 0, KEYC_IL },
 	{ "kcub1", NULL, 0, KEYC_LEFT },
 	{ "kll",   NULL, 0, KEYC_LL },
 	{ "kmrk",  NULL, 0, KEYC_MARK },
 	{ "kmsg",  NULL, 0, KEYC_MESSAGE },
 	{ "kmov",  NULL, 0, KEYC_MOVE },
 	{ "knxt",  NULL, 0, KEYC_NEXT },
 	{ "knp",   NULL, 0, KEYC_NPAGE },
 	{ "kopn",  NULL, 0, KEYC_OPEN },
 	{ "kopt",  NULL, 0, KEYC_OPTIONS },
 	{ "kpp",   NULL, 0, KEYC_PPAGE },
 	{ "kprv",  NULL, 0, KEYC_PREVIOUS },
 	{ "kprt",  NULL, 0, KEYC_PRINT },
 	{ "krdo",  NULL, 0, KEYC_REDO },
 	{ "kref",  NULL, 0, KEYC_REFERENCE },
 	{ "krfr",  NULL, 0, KEYC_REFRESH },
 	{ "krpl",  NULL, 0, KEYC_REPLACE },
 	{ "krst",  NULL, 0, KEYC_RESTART },
 	{ "kres",  NULL, 0, KEYC_RESUME },
 	{ "kcuf1", NULL, 0, KEYC_RIGHT },
 	{ "ksav",  NULL, 0, KEYC_SAVE },
 	{ "kBEG",  NULL, 0, KEYC_SBEG },
 	{ "kCAN",  NULL, 0, KEYC_SCANCEL },
 	{ "kCMD",  NULL, 0, KEYC_SCOMMAND },
 	{ "kCPY",  NULL, 0, KEYC_SCOPY },
 	{ "kCRT",  NULL, 0, KEYC_SCREATE },
 	{ "kDC",   NULL, 0, KEYC_SDC },
 	{ "kDL",   NULL, 0, KEYC_SDL },
 	{ "kslt",  NULL, 0, KEYC_SELECT },
 	{ "kEND",  NULL, 0, KEYC_SEND },
 	{ "kEOL",  NULL, 0, KEYC_SEOL },
 	{ "kEXT",  NULL, 0, KEYC_SEXIT },
 	{ "kind",  NULL, 0, KEYC_SF },
 	{ "kFND",  NULL, 0, KEYC_SFIND },
 	{ "kHLP",  NULL, 0, KEYC_SHELP },
 	{ "kHOM",  NULL, 0, KEYC_SHOME },
 	{ "kIC",   NULL, 0, KEYC_SIC },
 	{ "kLFT",  NULL, 0, KEYC_SLEFT },
 	{ "kMSG",  NULL, 0, KEYC_SMESSAGE },
 	{ "kMOV",  NULL, 0, KEYC_SMOVE },
 	{ "kNXT",  NULL, 0, KEYC_SNEXT },
 	{ "kOPT",  NULL, 0, KEYC_SOPTIONS },
 	{ "kPRV",  NULL, 0, KEYC_SPREVIOUS },
 	{ "kPRT",  NULL, 0, KEYC_SPRINT },
 	{ "kri",   NULL, 0, KEYC_SR },
 	{ "kRDO",  NULL, 0, KEYC_SREDO },
 	{ "kRPL",  NULL, 0, KEYC_SREPLACE },
 	{ "kRIT",  NULL, 0, KEYC_SRIGHT },
 	{ "kRES",  NULL, 0, KEYC_SRSUME },
 	{ "kSAV",  NULL, 0, KEYC_SSAVE },
 	{ "kSPD",  NULL, 0, KEYC_SSUSPEND },
 	{ "khts",  NULL, 0, KEYC_STAB },
 	{ "kUND",  NULL, 0, KEYC_SUNDO },
 	{ "kspd",  NULL, 0, KEYC_SUSPEND },
 	{ "kund",  NULL, 0, KEYC_UNDO },
 	{ "kcuu1", NULL, 0, KEYC_UP },
 	{ "pmous", NULL, 0, KEYC_MOUSE },
 	{ NULL,    NULL, 0, KEYC_NONE }
 };

 /* tty file descriptor and local terminal buffers. */
 int		 local_fd;
 struct buffer	*local_in;
 struct buffer	*local_out;
 struct termios	 local_tio;

 /* Initialise local terminal. */
 int
 local_init(struct buffer **in, struct buffer **out)
 {
 	char		 *tty;
 	int		  mode;
 	struct termios	  tio;
 	struct local_key *lk;

 	if ((tty = ttyname(STDOUT_FILENO)) == NULL)
 		fatal("ttyname failed");
 	if ((local_fd = open(tty, O_RDWR)) == -1)
 		fatal("open failed");
 	if ((mode = fcntl(local_fd, F_GETFL)) == -1)
 		fatal("fcntl failed");
 	if (fcntl(local_fd, F_SETFL, mode|O_NONBLOCK) == -1)
 		fatal("fcntl failed");

 	*in = local_in = buffer_create(BUFSIZ);
 	*out = local_out = buffer_create(BUFSIZ);

 	setupterm(NULL, STDOUT_FILENO, NULL);

 	if (tcgetattr(local_fd, &local_tio) != 0)
 		fatal("tcgetattr failed");
 	memset(&tio, 0, sizeof tio);
 	tio.c_iflag = TTYDEF_IFLAG & ~(IXON|IXOFF|ICRNL|INLCR);
 	tio.c_oflag = TTYDEF_OFLAG & ~(OPOST|ONLCR|OCRNL|ONLRET);
 	tio.c_lflag =
 	    TTYDEF_LFLAG & ~(IEXTEN|ICANON|ECHO|ECHOE|ECHOKE|ECHOCTL|ISIG);
 	tio.c_cflag = TTYDEF_CFLAG;
 	memcpy(&tio.c_cc, ttydefchars, sizeof tio.c_cc);
 	cfsetspeed(&tio, TTYDEF_SPEED);
 	if (tcsetattr(local_fd, TCSANOW, &tio) != 0)
 		fatal("tcsetattr failed");

 	if (enter_ca_mode != NULL)
 		local_putp(enter_ca_mode);
 	if (keypad_xmit != NULL)
 		local_putp(keypad_xmit);
 	local_putp(clear_screen);

 	for (lk = local_keys; lk->name != NULL; lk++) {
 		lk->string = tigetstr(lk->name);
 		if (lk->string == (char *) -1 || lk->string == (char *) 0)
 			lk->string = NULL;
 		else {
 			lk->size = strlen(lk->string);
 			log_debug("string for %s (%d): \"%s\", length %zu",
 			    lk->name, lk->code, lk->string, lk->size);
 		}
 	}
 	qsort(local_keys, sizeof local_keys /
 	    sizeof local_keys[0], sizeof local_keys[0], local_cmp);

 	return (local_fd);
 }

 /* Compare keys. */
 int
 local_cmp(const void *ptr1, const void *ptr2)
 {
 	const struct local_key *lk1 = ptr1, *lk2 = ptr2;

 	if (lk1->string == NULL && lk2->string == NULL)
 		return (0);
 	if (lk1->string == NULL)
 		return (1);
 	if (lk2->string == NULL)
 		return (-1);
 	return (lk2->size - lk1->size);
 }

 /* Tidy up and reset local terminal. */
 void
 local_done(void)
 {
 	xfree(local_in);
 	xfree(local_out);

 	if (tcsetattr(local_fd, TCSANOW, &local_tio) != 0)
 		fatal("tcsetattr failed");
 	close(local_fd);

 	if (keypad_local != NULL)
 		putp(keypad_local);	/* not local_putp */
 	if (exit_ca_mode != NULL)
 		putp(exit_ca_mode);
 	putp(clear_screen);
 	if (cursor_normal != NULL)
 		putp(cursor_normal);
 	if (exit_attribute_mode != NULL)
 		putp(exit_attribute_mode);
 }

 /* Put a character. Used as parameter to tputs. */
 int
 local_putc(int c)
 {
 	FILE	*f;
 	u_char	ch = c;

 	if (c < 0 || c > (int) UCHAR_MAX)
 		fatalx("invalid character");

 /* XXX
 	if (debug_level > 2) {
 		f = fopen("tmux-out.log", "a+");
 		fprintf(f, "%c", ch);
 		fclose(f);
 	}
 */

 	buffer_write(local_out, &ch, 1);
 	return (c);
 }

 /* Put terminfo string. */
 void
 local_putp(const char *s)
 {
 	if (s == NULL)
 		fatalx("null pointer");

 	tputs(s, 1, local_putc);
 }

 /* Return waiting keys if any. */
 int
 local_key(size_t *used)
 {
 	struct local_key	*lk;
 	u_int			 i;
 	size_t			 size;

 	size = BUFFER_USED(local_in);
 	if (size == 0)
 		return (KEYC_NONE);

 	i = 0;
 	lk = local_keys;
 	while (lk->string != NULL) {
 		if (strncmp(BUFFER_OUT(local_in), lk->string, size) == 0) {
 			if (size < lk->size)
 				return (KEYC_NONE);
 			log_debug("got key: "
 			    "%s %d \"%s\"", lk->name, lk->code, lk->string);
 			buffer_remove(local_in, lk->size);
 			if (used != NULL)
 				*used = lk->size;
 			return (lk->code);
 		}

 		i++;
 		lk = local_keys + i;
 	}

 	if (used != NULL)
 		*used = 1;
 	return (input_extract8(local_in));
 }

 /* Display output data. */
 void
 local_output(struct buffer *b, size_t size)
 {
 	u_char		 ch;
 	uint16_t	 ua, ub;

 	while (size != 0) {
 		if (size < 1)
 			break;
 		size--;
 		ch = input_extract8(b);
 		if (ch != '\e') {
 			switch (ch) {
 			case '\n':	/* LF */
 				if (cursor_down != NULL) {
 					local_putp(cursor_down);
 					break;
 				}
 				log_warnx("cursor_down not supported");
 				break;
 			case '\r':	/* CR */
 				if (carriage_return != NULL) {
 					local_putp(carriage_return);
 					break;
 				}
 				log_warnx("carriage_return not supported");
 				break;
 			case '\007':	/* BEL */
 				if (bell != NULL) {
 					local_putp(bell);
 					break;
 				}
 				log_warnx("bell not supported");
 				break;
 			case '\010':	/* BS */
 				if (cursor_left != NULL) {
 					local_putp(cursor_left);
 					break;
 				}
 				log_warnx("cursor_left not supported");
 				break;
 			default:
 				local_putc(ch);
 				break;
 			}
 			continue;
 		}

 		if (size < 1)
 			fatalx("underflow");
 		size--;
 		ch = input_extract8(b);

 		log_debug("received code %hhu", ch);
 		switch (ch) {
 		case CODE_CURSORUP:
 			if (size < 2)
 				fatalx("CODE_CURSORUP underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_up_cursor == NULL) {
 				log_warnx("parm_up_cursor not supported");
 				break;
 			}
 			local_putp(tparm(parm_up_cursor, ua));
 			break;
 		case CODE_CURSORDOWN:
 			if (size < 2)
 				fatalx("CODE_CURSORDOWN underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_down_cursor == NULL) {
 				log_warnx("parm_down_cursor not supported");
 				break;
 			}
 			local_putp(tparm(parm_down_cursor, ua));
 			break;
 		case CODE_CURSORRIGHT:
 			if (size < 2)
 				fatalx("CODE_CURSORRIGHT underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_right_cursor == NULL) {
 				log_warnx("parm_right_cursor not supported");
 				break;
 			}
 			local_putp(tparm(parm_right_cursor, ua));
 			break;
 		case CODE_CURSORLEFT:
 			if (size < 2)
 				fatalx("CODE_CURSORLEFT underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_left_cursor == NULL) {
 				log_warnx("parm_left_cursor not supported");
 				break;
 			}
 			local_putp(tparm(parm_left_cursor, ua));
 			break;
 		case CODE_CURSORMOVE:
 			if (size < 4)
 				fatalx("CODE_CURSORMOVE underflow");
 			size -= 4;
 			ua = input_extract16(b);
 			ub = input_extract16(b);
 			if (cursor_address == NULL) {
 				log_warnx("cursor_address not supported");
 				break;
 			}
 			local_putp(tparm(cursor_address, ua - 1, ub - 1));
 			break;
 		case CODE_CLEARENDOFLINE:
 			if (clr_eol == NULL) {
 				log_warnx("clr_eol not supported");
 				break;
 			}
 			local_putp(clr_eol);
 			break;
 		case CODE_CLEARSTARTOFLINE:
 			if (clr_bol == NULL) {
 				log_warnx("clr_bol not supported");
 				break;
 			}
 			local_putp(clr_bol);
 			break;
 		case CODE_CLEARLINE:
 			if (clr_eol == NULL) {
 				log_warnx("clr_eol not suppported");
 				break;
 			}
 			local_putp(clr_eol);	/* XXX */
 			break;
 		case CODE_INSERTLINE:
 			if (size < 2)
 				fatalx("CODE_INSERTLINE underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_insert_line == NULL) {
 				log_warnx("parm_insert_line not supported");
 				break;
 			}
 			local_putp(tparm(parm_insert_line, ua));
 			break;
 		case CODE_DELETELINE:
 			if (size < 2)
 				fatalx("CODE_DELETELINE underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_delete_line == NULL) {
 				log_warnx("parm_delete not supported");
 				break;
 			}
 			local_putp(tparm(parm_delete_line, ua));
 			break;
 		case CODE_INSERTCHARACTER:
 			if (size < 2)
 				fatalx("CODE_INSERTCHARACTER underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_ich == NULL) {
 				log_warnx("parm_ich not supported");
 				break;
 			}
 			local_putp(tparm(parm_ich, ua));
 			break;
 		case CODE_DELETECHARACTER:
 			if (size < 2)
 				fatalx("CODE_DELETECHARACTER underflow");
 			size -= 2;
 			ua = input_extract16(b);
 			if (parm_dch == NULL) {
 				log_warnx("parm_dch not supported");
 				break;
 			}
 			local_putp(tparm(parm_dch, ua));
 			break;
 		case CODE_CURSORON:
 			if (cursor_normal == NULL) {
 				log_warnx("cursor_normal not supported");
 				break;
 			}
  			local_putp(cursor_normal);
 			break;
 		case CODE_CURSOROFF:
 			if (cursor_invisible == NULL) {
 				log_warnx("cursor_invisible not supported");
 				break;
 			}
 			local_putp(cursor_invisible);
 			break;
 		case CODE_REVERSEINDEX:
 			if (scroll_reverse == NULL) {
 				log_warnx("scroll_reverse not supported");
 				break;
 			}
 			local_putp(scroll_reverse);
 			break;
 		case CODE_SCROLLREGION:
 			if (size < 4)
 				fatalx("CODE_SCROLLREGION underflow");
 			size -= 4;
 			ua = input_extract16(b);
 			ub = input_extract16(b);
 			if (change_scroll_region == NULL) {
 				log_warnx("change_scroll_region not supported");
 				break;
 			}
 			local_putp(tparm(change_scroll_region, ua - 1, ub - 1));
 			break;
 		case CODE_INSERTON:
 			if (enter_insert_mode == NULL) {
 				log_warnx("enter_insert_mode not supported");
 				break;
 			}
 			local_putp(enter_insert_mode);
 			break;
 		case CODE_INSERTOFF:
 			if (exit_insert_mode == NULL) {
 				log_warnx("exit_insert_mode not supported");
 				break;
 			}
 			local_putp(exit_insert_mode);
 			break;
 		case CODE_KCURSOROFF:
 			/*
 			t = tigetstr("CE");
 			if (t != (char *) 0 && t != (char *) -1)
 				local_putp(t);
 			*/
 			break;
 		case CODE_KCURSORON:
 			/*
 			t = tigetstr("CS");
 			if (t != (char *) 0 && t != (char *) -1)
 				local_putp(t);
 			*/
 			break;
 		case CODE_KKEYPADOFF:
 			/*
 			if (keypad_local == NULL) {
 				log_warnx("keypad_local not supported");
 				break;
 			}
 			local_putp(keypad_local);
 			*/
 			break;
 		case CODE_KKEYPADON:
 			/*
 			if (keypad_xmit == NULL) {
 				log_warnx("keypad_xmit not supported");
 				break;
 			}
 			local_putp(keypad_xmit);
 			*/
 			break;
 		case CODE_TITLE:
 			if (size < 2)
 				fatalx("CODE_TITLE underflow");
 			size -= 2;
 			ua = input_extract16(b);

 			if (size < ua)
 				fatalx("CODE_TITLE underflow");
 			size -= ua;
 			buffer_remove(b, ua);
 			break;
 		case CODE_ATTRIBUTES:
 			if (size < 2)
 				fatalx("CODE_ATTRIBUTES underflow");
 			size -= 2;
 			ua = input_extract16(b);

 			if (exit_attribute_mode == NULL) {
 				log_warnx("exit_attribute_mode not supported");
 				break;
 			}
 			if (ua == 0) {
 				local_putp(exit_attribute_mode);
 				break;
 			}

 			while (ua-- != 0) {
 				if (size < 2)
 					fatalx("CODE_ATTRIBUTES underflow");
 				size -= 2;
 				ub = input_extract16(b);

 				switch (ub) {
 				case 0:
 				case 10:
 					if (exit_attribute_mode)
 						local_putp(exit_attribute_mode);
 					break;
 				case 1:
 					if (enter_bold_mode)
 						local_putp(enter_bold_mode);
 					break;
 				case 2:
 					if (enter_dim_mode)
 						local_putp(enter_dim_mode);
 					break;
 				case 3:
 					if (enter_standout_mode)
 						local_putp(enter_standout_mode);
 					break;
 				case 4:
 					if (enter_underline_mode)
 						local_putp(enter_underline_mode);
 					break;
 				case 5:
 					if (enter_blink_mode)
 						local_putp(enter_blink_mode);
 					break;
 				case 7:
 					if (enter_reverse_mode)
 						local_putp(enter_reverse_mode);
 					break;
 				case 8:
 					if (enter_secure_mode)
 						local_putp(enter_secure_mode);
 					break;
 				case 23:
 					if (exit_standout_mode)
 						local_putp(exit_standout_mode);
 					break;
 				case 24:
 					if (exit_underline_mode)
 						local_putp(exit_underline_mode);
 					break;
 				case 30:
 				case 31:
 				case 32:
 				case 33:
 				case 34:
 				case 35:
 				case 36:
 				case 37:
 					if (set_a_foreground == NULL)
 						break;
 					local_putp(
 					    tparm(set_a_foreground, ub - 30));
 					break;
 				case 39:
 					if (set_a_foreground == NULL)
 						break;
 					if (tigetflag("AX") == TRUE) {
 						local_putp("\e[39m");
 						break;
 					}
 					local_putp(tparm(set_a_foreground, 7));
 					break;
 				case 40:
 				case 41:
 				case 42:
 				case 43:
 				case 44:
 				case 45:
 				case 46:
 				case 47:
 					if (set_a_background == NULL)
 						break;
 					local_putp(
 					    tparm(set_a_background, ub - 40));
 					break;
 				case 49:
 					if (set_a_background == NULL)
 						break;
 					if (tigetflag("AX") == TRUE) {
 						local_putp("\e[49m");
 						break;
 					}
 					local_putp(tparm(set_a_background, 0));
 					break;
 				}
 			}
 			break;
 		}
 	}
 }
	/* $Id: local.c,v 1.11 2007-09-29 14:25:49 nicm Exp $ */

	/*
	* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
	*
	* Permission to use, copy, modify, and distribute this software for any
	* purpose with or without fee is hereby granted, provided that the above
	* copyright notice and this permission notice appear in all copies.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
	* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
	* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	*/

	#include <sys/types.h>

	#include <curses.h>
	#include <fcntl.h>
	#include <stdlib.h>
	#include <string.h>
	#define TTYDEFCHARS
	#include <termios.h>
	#include <term.h>
	#include <unistd.h>

	#include "tmux.h"

	/*
	* Functions to translate input and write output to the local client terminal.
	* This file should probably be called tty or terminal.c.
	*/

	int local_cmp(const void , const void );
	int local_putc(int);
	void local_putp(const char *);

	/* Local key types and key codes. */
	struct local_key {
	const char *name;
	char *string;
	size_t size;
	int code;
	};
	struct local_key local_keys[] = {
	{ "ka1", NULL, 0, KEYC_A1 },
	{ "ka3", NULL, 0, KEYC_A3 },
	{ "kb2", NULL, 0, KEYC_B2 },
	/* { "kbs", NULL, 0, KEYC_BACKSPACE }, */
	{ "kbeg", NULL, 0, KEYC_BEG },
	{ "kcbt", NULL, 0, KEYC_BTAB },
	{ "kc1", NULL, 0, KEYC_C1 },
	{ "kc3", NULL, 0, KEYC_C3 },
	{ "kcan", NULL, 0, KEYC_CANCEL },
	{ "ktbc", NULL, 0, KEYC_CATAB },
	{ "kclr", NULL, 0, KEYC_CLEAR },
	{ "kclo", NULL, 0, KEYC_CLOSE },
	{ "kcmd", NULL, 0, KEYC_COMMAND },
	{ "kcpy", NULL, 0, KEYC_COPY },
	{ "kcrt", NULL, 0, KEYC_CREATE },
	{ "kctab", NULL, 0, KEYC_CTAB },
	{ "kdch1", NULL, 0, KEYC_DC },
	{ "kdl1", NULL, 0, KEYC_DL },
	{ "kcud1", NULL, 0, KEYC_DOWN },
	{ "krmir", NULL, 0, KEYC_EIC },
	{ "kend", NULL, 0, KEYC_END },
	{ "kent", NULL, 0, KEYC_ENTER },
	{ "kel", NULL, 0, KEYC_EOL },
	{ "ked", NULL, 0, KEYC_EOS },
	{ "kext", NULL, 0, KEYC_EXIT },
	{ "kf0", NULL, 0, KEYC_F0 },
	{ "kf1", NULL, 0, KEYC_F1 },
	{ "kf10", NULL, 0, KEYC_F10 },
	{ "kf11", NULL, 0, KEYC_F11 },
	{ "kf12", NULL, 0, KEYC_F12 },
	{ "kf13", NULL, 0, KEYC_F13 },
	{ "kf14", NULL, 0, KEYC_F14 },
	{ "kf15", NULL, 0, KEYC_F15 },
	{ "kf16", NULL, 0, KEYC_F16 },
	{ "kf17", NULL, 0, KEYC_F17 },
	{ "kf18", NULL, 0, KEYC_F18 },
	{ "kf19", NULL, 0, KEYC_F19 },
	{ "kf2", NULL, 0, KEYC_F2 },
	{ "kf20", NULL, 0, KEYC_F20 },
	{ "kf21", NULL, 0, KEYC_F21 },
	{ "kf22", NULL, 0, KEYC_F22 },
	{ "kf23", NULL, 0, KEYC_F23 },
	{ "kf24", NULL, 0, KEYC_F24 },
	{ "kf25", NULL, 0, KEYC_F25 },
	{ "kf26", NULL, 0, KEYC_F26 },
	{ "kf27", NULL, 0, KEYC_F27 },
	{ "kf28", NULL, 0, KEYC_F28 },
	{ "kf29", NULL, 0, KEYC_F29 },
	{ "kf3", NULL, 0, KEYC_F3 },
	{ "kf30", NULL, 0, KEYC_F30 },
	{ "kf31", NULL, 0, KEYC_F31 },
	{ "kf32", NULL, 0, KEYC_F32 },
	{ "kf33", NULL, 0, KEYC_F33 },
	{ "kf34", NULL, 0, KEYC_F34 },
	{ "kf35", NULL, 0, KEYC_F35 },
	{ "kf36", NULL, 0, KEYC_F36 },
	{ "kf37", NULL, 0, KEYC_F37 },
	{ "kf38", NULL, 0, KEYC_F38 },
	{ "kf39", NULL, 0, KEYC_F39 },
	{ "kf4", NULL, 0, KEYC_F4 },
	{ "kf40", NULL, 0, KEYC_F40 },
	{ "kf41", NULL, 0, KEYC_F41 },
	{ "kf42", NULL, 0, KEYC_F42 },
	{ "kf43", NULL, 0, KEYC_F43 },
	{ "kf44", NULL, 0, KEYC_F44 },
	{ "kf45", NULL, 0, KEYC_F45 },
	{ "kf46", NULL, 0, KEYC_F46 },
	{ "kf47", NULL, 0, KEYC_F47 },
	{ "kf48", NULL, 0, KEYC_F48 },
	{ "kf49", NULL, 0, KEYC_F49 },
	{ "kf5", NULL, 0, KEYC_F5 },
	{ "kf50", NULL, 0, KEYC_F50 },
	{ "kf51", NULL, 0, KEYC_F51 },
	{ "kf52", NULL, 0, KEYC_F52 },
	{ "kf53", NULL, 0, KEYC_F53 },
	{ "kf54", NULL, 0, KEYC_F54 },
	{ "kf55", NULL, 0, KEYC_F55 },
	{ "kf56", NULL, 0, KEYC_F56 },
	{ "kf57", NULL, 0, KEYC_F57 },
	{ "kf58", NULL, 0, KEYC_F58 },
	{ "kf59", NULL, 0, KEYC_F59 },
	{ "kf6", NULL, 0, KEYC_F6 },
	{ "kf60", NULL, 0, KEYC_F60 },
	{ "kf61", NULL, 0, KEYC_F61 },
	{ "kf62", NULL, 0, KEYC_F62 },
	{ "kf63", NULL, 0, KEYC_F63 },
	{ "kf7", NULL, 0, KEYC_F7 },
	{ "kf8", NULL, 0, KEYC_F8 },
	{ "kf9", NULL, 0, KEYC_F9 },
	{ "kfnd", NULL, 0, KEYC_FIND },
	{ "khlp", NULL, 0, KEYC_HELP },
	{ "khome", NULL, 0, KEYC_HOME },
	{ "kich1", NULL, 0, KEYC_IC },
	{ "kil1", NULL, 0, KEYC_IL },
	{ "kcub1", NULL, 0, KEYC_LEFT },
	{ "kll", NULL, 0, KEYC_LL },
	{ "kmrk", NULL, 0, KEYC_MARK },
	{ "kmsg", NULL, 0, KEYC_MESSAGE },
	{ "kmov", NULL, 0, KEYC_MOVE },
	{ "knxt", NULL, 0, KEYC_NEXT },
	{ "knp", NULL, 0, KEYC_NPAGE },
	{ "kopn", NULL, 0, KEYC_OPEN },
	{ "kopt", NULL, 0, KEYC_OPTIONS },
	{ "kpp", NULL, 0, KEYC_PPAGE },
	{ "kprv", NULL, 0, KEYC_PREVIOUS },
	{ "kprt", NULL, 0, KEYC_PRINT },
	{ "krdo", NULL, 0, KEYC_REDO },
	{ "kref", NULL, 0, KEYC_REFERENCE },
	{ "krfr", NULL, 0, KEYC_REFRESH },
	{ "krpl", NULL, 0, KEYC_REPLACE },
	{ "krst", NULL, 0, KEYC_RESTART },
	{ "kres", NULL, 0, KEYC_RESUME },
	{ "kcuf1", NULL, 0, KEYC_RIGHT },
	{ "ksav", NULL, 0, KEYC_SAVE },
	{ "kBEG", NULL, 0, KEYC_SBEG },
	{ "kCAN", NULL, 0, KEYC_SCANCEL },
	{ "kCMD", NULL, 0, KEYC_SCOMMAND },
	{ "kCPY", NULL, 0, KEYC_SCOPY },
	{ "kCRT", NULL, 0, KEYC_SCREATE },
	{ "kDC", NULL, 0, KEYC_SDC },
	{ "kDL", NULL, 0, KEYC_SDL },
	{ "kslt", NULL, 0, KEYC_SELECT },
	{ "kEND", NULL, 0, KEYC_SEND },
	{ "kEOL", NULL, 0, KEYC_SEOL },
	{ "kEXT", NULL, 0, KEYC_SEXIT },
	{ "kind", NULL, 0, KEYC_SF },
	{ "kFND", NULL, 0, KEYC_SFIND },
	{ "kHLP", NULL, 0, KEYC_SHELP },
	{ "kHOM", NULL, 0, KEYC_SHOME },
	{ "kIC", NULL, 0, KEYC_SIC },
	{ "kLFT", NULL, 0, KEYC_SLEFT },
	{ "kMSG", NULL, 0, KEYC_SMESSAGE },
	{ "kMOV", NULL, 0, KEYC_SMOVE },
	{ "kNXT", NULL, 0, KEYC_SNEXT },
	{ "kOPT", NULL, 0, KEYC_SOPTIONS },
	{ "kPRV", NULL, 0, KEYC_SPREVIOUS },
	{ "kPRT", NULL, 0, KEYC_SPRINT },
	{ "kri", NULL, 0, KEYC_SR },
	{ "kRDO", NULL, 0, KEYC_SREDO },
	{ "kRPL", NULL, 0, KEYC_SREPLACE },
	{ "kRIT", NULL, 0, KEYC_SRIGHT },
	{ "kRES", NULL, 0, KEYC_SRSUME },
	{ "kSAV", NULL, 0, KEYC_SSAVE },
	{ "kSPD", NULL, 0, KEYC_SSUSPEND },
	{ "khts", NULL, 0, KEYC_STAB },
	{ "kUND", NULL, 0, KEYC_SUNDO },
	{ "kspd", NULL, 0, KEYC_SUSPEND },
	{ "kund", NULL, 0, KEYC_UNDO },
	{ "kcuu1", NULL, 0, KEYC_UP },
	{ "pmous", NULL, 0, KEYC_MOUSE },
	{ NULL, NULL, 0, KEYC_NONE }
	};

	/* tty file descriptor and local terminal buffers. */
	int local_fd;
	struct buffer *local_in;
	struct buffer *local_out;
	struct termios local_tio;

	/* Initialise local terminal. */
	int
	local_init(struct buffer in, struct buffer out)
	{
	char *tty;
	int mode;
	struct termios tio;
	struct local_key *lk;

	if ((tty = ttyname(STDOUT_FILENO)) == NULL)
	fatal("ttyname failed");
	if ((local_fd = open(tty, O_RDWR)) == -1)
	fatal("open failed");
	if ((mode = fcntl(local_fd, F_GETFL)) == -1)
	fatal("fcntl failed");
	if (fcntl(local_fd, F_SETFL, mode\|O_NONBLOCK) == -1)
	fatal("fcntl failed");

	*in = local_in = buffer_create(BUFSIZ);
	*out = local_out = buffer_create(BUFSIZ);

	setupterm(NULL, STDOUT_FILENO, NULL);

	if (tcgetattr(local_fd, &local_tio) != 0)
	fatal("tcgetattr failed");
	memset(&tio, 0, sizeof tio);
	tio.c_iflag = TTYDEF_IFLAG & ~(IXON\|IXOFF\|ICRNL\|INLCR);
	tio.c_oflag = TTYDEF_OFLAG & ~(OPOST\|ONLCR\|OCRNL\|ONLRET);
	tio.c_lflag =
	TTYDEF_LFLAG & ~(IEXTEN\|ICANON\|ECHO\|ECHOE\|ECHOKE\|ECHOCTL\|ISIG);
	tio.c_cflag = TTYDEF_CFLAG;
	memcpy(&tio.c_cc, ttydefchars, sizeof tio.c_cc);
	cfsetspeed(&tio, TTYDEF_SPEED);
	if (tcsetattr(local_fd, TCSANOW, &tio) != 0)
	fatal("tcsetattr failed");

	if (enter_ca_mode != NULL)
	local_putp(enter_ca_mode);
	if (keypad_xmit != NULL)
	local_putp(keypad_xmit);
	local_putp(clear_screen);

	for (lk = local_keys; lk->name != NULL; lk++) {
	lk->string = tigetstr(lk->name);
	if (lk->string == (char ) -1 \|\| lk->string == (char ) 0)
	lk->string = NULL;
	else {
	lk->size = strlen(lk->string);
	log_debug("string for %s (%d): \"%s\", length %zu",
	lk->name, lk->code, lk->string, lk->size);
	}
	}
	qsort(local_keys, sizeof local_keys /
	sizeof local_keys[0], sizeof local_keys[0], local_cmp);

	return (local_fd);
	}

	/* Compare keys. */
	int
	local_cmp(const void ptr1, const void ptr2)
	{
	const struct local_key lk1 = ptr1, lk2 = ptr2;

	if (lk1->string == NULL && lk2->string == NULL)
	return (0);
	if (lk1->string == NULL)
	return (1);
	if (lk2->string == NULL)
	return (-1);
	return (lk2->size - lk1->size);
	}

	/* Tidy up and reset local terminal. */
	void
	local_done(void)
	{
	xfree(local_in);
	xfree(local_out);

	if (tcsetattr(local_fd, TCSANOW, &local_tio) != 0)
	fatal("tcsetattr failed");
	close(local_fd);

	if (keypad_local != NULL)
	putp(keypad_local); /* not local_putp */
	if (exit_ca_mode != NULL)
	putp(exit_ca_mode);
	putp(clear_screen);
	if (cursor_normal != NULL)
	putp(cursor_normal);
	if (exit_attribute_mode != NULL)
	putp(exit_attribute_mode);
	}

	/* Put a character. Used as parameter to tputs. */
	int
	local_putc(int c)
	{
	FILE *f;
	u_char ch = c;

	if (c < 0 \|\| c > (int) UCHAR_MAX)
	fatalx("invalid character");

	/* XXX
	if (debug_level > 2) {
	f = fopen("tmux-out.log", "a+");
	fprintf(f, "%c", ch);
	fclose(f);
	}
	*/

	buffer_write(local_out, &ch, 1);
	return (c);
	}

	/* Put terminfo string. */
	void
	local_putp(const char *s)
	{
	if (s == NULL)
	fatalx("null pointer");

	tputs(s, 1, local_putc);
	}

	/* Return waiting keys if any. */
	int
	local_key(size_t *used)
	{
	struct local_key *lk;
	u_int i;
	size_t size;

	size = BUFFER_USED(local_in);
	if (size == 0)
	return (KEYC_NONE);

	i = 0;
	lk = local_keys;
	while (lk->string != NULL) {
	if (strncmp(BUFFER_OUT(local_in), lk->string, size) == 0) {
	if (size < lk->size)
	return (KEYC_NONE);
	log_debug("got key: "
	"%s %d \"%s\"", lk->name, lk->code, lk->string);
	buffer_remove(local_in, lk->size);
	if (used != NULL)
	*used = lk->size;
	return (lk->code);
	}

	i++;
	lk = local_keys + i;
	}

	if (used != NULL)
	*used = 1;
	return (input_extract8(local_in));
	}

	/* Display output data. */
	void
	local_output(struct buffer *b, size_t size)
	{
	u_char ch;
	uint16_t ua, ub;

	while (size != 0) {
	if (size < 1)
	break;
	size--;
	ch = input_extract8(b);
	if (ch != '\e') {
	switch (ch) {
	case '\n': /* LF */
	if (cursor_down != NULL) {
	local_putp(cursor_down);
	break;
	}
	log_warnx("cursor_down not supported");
	break;
	case '\r': /* CR */
	if (carriage_return != NULL) {
	local_putp(carriage_return);
	break;
	}
	log_warnx("carriage_return not supported");
	break;
	case '\007': /* BEL */
	if (bell != NULL) {
	local_putp(bell);
	break;
	}
	log_warnx("bell not supported");
	break;
	case '\010': /* BS */
	if (cursor_left != NULL) {
	local_putp(cursor_left);
	break;
	}
	log_warnx("cursor_left not supported");
	break;
	default:
	local_putc(ch);
	break;
	}
	continue;
	}

	if (size < 1)
	fatalx("underflow");
	size--;
	ch = input_extract8(b);

	log_debug("received code %hhu", ch);
	switch (ch) {
	case CODE_CURSORUP:
	if (size < 2)
	fatalx("CODE_CURSORUP underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_up_cursor == NULL) {
	log_warnx("parm_up_cursor not supported");
	break;
	}
	local_putp(tparm(parm_up_cursor, ua));
	break;
	case CODE_CURSORDOWN:
	if (size < 2)
	fatalx("CODE_CURSORDOWN underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_down_cursor == NULL) {
	log_warnx("parm_down_cursor not supported");
	break;
	}
	local_putp(tparm(parm_down_cursor, ua));
	break;
	case CODE_CURSORRIGHT:
	if (size < 2)
	fatalx("CODE_CURSORRIGHT underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_right_cursor == NULL) {
	log_warnx("parm_right_cursor not supported");
	break;
	}
	local_putp(tparm(parm_right_cursor, ua));
	break;
	case CODE_CURSORLEFT:
	if (size < 2)
	fatalx("CODE_CURSORLEFT underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_left_cursor == NULL) {
	log_warnx("parm_left_cursor not supported");
	break;
	}
	local_putp(tparm(parm_left_cursor, ua));
	break;
	case CODE_CURSORMOVE:
	if (size < 4)
	fatalx("CODE_CURSORMOVE underflow");
	size -= 4;
	ua = input_extract16(b);
	ub = input_extract16(b);
	if (cursor_address == NULL) {
	log_warnx("cursor_address not supported");
	break;
	}
	local_putp(tparm(cursor_address, ua - 1, ub - 1));
	break;
	case CODE_CLEARENDOFLINE:
	if (clr_eol == NULL) {
	log_warnx("clr_eol not supported");
	break;
	}
	local_putp(clr_eol);
	break;
	case CODE_CLEARSTARTOFLINE:
	if (clr_bol == NULL) {
	log_warnx("clr_bol not supported");
	break;
	}
	local_putp(clr_bol);
	break;
	case CODE_CLEARLINE:
	if (clr_eol == NULL) {
	log_warnx("clr_eol not suppported");
	break;
	}
	local_putp(clr_eol); /* XXX */
	break;
	case CODE_INSERTLINE:
	if (size < 2)
	fatalx("CODE_INSERTLINE underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_insert_line == NULL) {
	log_warnx("parm_insert_line not supported");
	break;
	}
	local_putp(tparm(parm_insert_line, ua));
	break;
	case CODE_DELETELINE:
	if (size < 2)
	fatalx("CODE_DELETELINE underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_delete_line == NULL) {
	log_warnx("parm_delete not supported");
	break;
	}
	local_putp(tparm(parm_delete_line, ua));
	break;
	case CODE_INSERTCHARACTER:
	if (size < 2)
	fatalx("CODE_INSERTCHARACTER underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_ich == NULL) {
	log_warnx("parm_ich not supported");
	break;
	}
	local_putp(tparm(parm_ich, ua));
	break;
	case CODE_DELETECHARACTER:
	if (size < 2)
	fatalx("CODE_DELETECHARACTER underflow");
	size -= 2;
	ua = input_extract16(b);
	if (parm_dch == NULL) {
	log_warnx("parm_dch not supported");
	break;
	}
	local_putp(tparm(parm_dch, ua));
	break;
	case CODE_CURSORON:
	if (cursor_normal == NULL) {
	log_warnx("cursor_normal not supported");
	break;
	}
	local_putp(cursor_normal);
	break;
	case CODE_CURSOROFF:
	if (cursor_invisible == NULL) {
	log_warnx("cursor_invisible not supported");
	break;
	}
	local_putp(cursor_invisible);
	break;
	case CODE_REVERSEINDEX:
	if (scroll_reverse == NULL) {
	log_warnx("scroll_reverse not supported");
	break;
	}
	local_putp(scroll_reverse);
	break;
	case CODE_SCROLLREGION:
	if (size < 4)
	fatalx("CODE_SCROLLREGION underflow");
	size -= 4;
	ua = input_extract16(b);
	ub = input_extract16(b);
	if (change_scroll_region == NULL) {
	log_warnx("change_scroll_region not supported");
	break;
	}
	local_putp(tparm(change_scroll_region, ua - 1, ub - 1));
	break;
	case CODE_INSERTON:
	if (enter_insert_mode == NULL) {
	log_warnx("enter_insert_mode not supported");
	break;
	}
	local_putp(enter_insert_mode);
	break;
	case CODE_INSERTOFF:
	if (exit_insert_mode == NULL) {
	log_warnx("exit_insert_mode not supported");
	break;
	}
	local_putp(exit_insert_mode);
	break;
	case CODE_KCURSOROFF:
	/*
	t = tigetstr("CE");
	if (t != (char ) 0 && t != (char ) -1)
	local_putp(t);
	*/
	break;
	case CODE_KCURSORON:
	/*
	t = tigetstr("CS");
	if (t != (char ) 0 && t != (char ) -1)
	local_putp(t);
	*/
	break;
	case CODE_KKEYPADOFF:
	/*
	if (keypad_local == NULL) {
	log_warnx("keypad_local not supported");
	break;
	}
	local_putp(keypad_local);
	*/
	break;
	case CODE_KKEYPADON:
	/*
	if (keypad_xmit == NULL) {
	log_warnx("keypad_xmit not supported");
	break;
	}
	local_putp(keypad_xmit);
	*/
	break;
	case CODE_TITLE:
	if (size < 2)
	fatalx("CODE_TITLE underflow");
	size -= 2;
	ua = input_extract16(b);

	if (size < ua)
	fatalx("CODE_TITLE underflow");
	size -= ua;
	buffer_remove(b, ua);
	break;
	case CODE_ATTRIBUTES:
	if (size < 2)
	fatalx("CODE_ATTRIBUTES underflow");
	size -= 2;
	ua = input_extract16(b);

	if (exit_attribute_mode == NULL) {
	log_warnx("exit_attribute_mode not supported");
	break;
	}
	if (ua == 0) {
	local_putp(exit_attribute_mode);
	break;
	}

	while (ua-- != 0) {
	if (size < 2)
	fatalx("CODE_ATTRIBUTES underflow");
	size -= 2;
	ub = input_extract16(b);

	switch (ub) {
	case 0:
	case 10:
	if (exit_attribute_mode)
	local_putp(exit_attribute_mode);
	break;
	case 1:
	if (enter_bold_mode)
	local_putp(enter_bold_mode);
	break;
	case 2:
	if (enter_dim_mode)
	local_putp(enter_dim_mode);
	break;
	case 3:
	if (enter_standout_mode)
	local_putp(enter_standout_mode);
	break;
	case 4:
	if (enter_underline_mode)
	local_putp(enter_underline_mode);
	break;
	case 5:
	if (enter_blink_mode)
	local_putp(enter_blink_mode);
	break;
	case 7:
	if (enter_reverse_mode)
	local_putp(enter_reverse_mode);
	break;
	case 8:
	if (enter_secure_mode)
	local_putp(enter_secure_mode);
	break;
	case 23:
	if (exit_standout_mode)
	local_putp(exit_standout_mode);
	break;
	case 24:
	if (exit_underline_mode)
	local_putp(exit_underline_mode);
	break;
	case 30:
	case 31:
	case 32:
	case 33:
	case 34:
	case 35:
	case 36:
	case 37:
	if (set_a_foreground == NULL)
	break;
	local_putp(
	tparm(set_a_foreground, ub - 30));
	break;
	case 39:
	if (set_a_foreground == NULL)
	break;
	if (tigetflag("AX") == TRUE) {
	local_putp("\e[39m");
	break;
	}
	local_putp(tparm(set_a_foreground, 7));
	break;
	case 40:
	case 41:
	case 42:
	case 43:
	case 44:
	case 45:
	case 46:
	case 47:
	if (set_a_background == NULL)
	break;
	local_putp(
	tparm(set_a_background, ub - 40));
	break;
	case 49:
	if (set_a_background == NULL)
	break;
	if (tigetflag("AX") == TRUE) {
	local_putp("\e[49m");
	break;
	}
	local_putp(tparm(set_a_background, 0));
	break;
	}
	}
	break;
	}
	}
	}