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/* $Id$ */
/*
* Copyright (c) 2008 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>
#ifdef HAVE_CURSES_H
#include <curses.h>
#else
#include <ncurses.h>
#endif
#include <fnmatch.h>
#include <stdlib.h>
#include <string.h>
#include <term.h>
#include "tmux.h"
void tty_term_override(struct tty_term *, const char *);
char *tty_term_strip(const char *);
struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
const struct tty_term_code_entry tty_term_codes[NTTYCODE] = {
{ TTYC_ACSC, TTYCODE_STRING, "acsc" },
{ TTYC_AX, TTYCODE_FLAG, "AX" },
{ TTYC_BEL, TTYCODE_STRING, "bel" },
{ TTYC_BLINK, TTYCODE_STRING, "blink" },
{ TTYC_BOLD, TTYCODE_STRING, "bold" },
{ TTYC_CC, TTYCODE_STRING, "Cc" },
{ TTYC_CIVIS, TTYCODE_STRING, "civis" },
{ TTYC_CLEAR, TTYCODE_STRING, "clear" },
{ TTYC_CNORM, TTYCODE_STRING, "cnorm" },
{ TTYC_COLORS, TTYCODE_NUMBER, "colors" },
{ TTYC_CR, TTYCODE_STRING, "Cr" },
{ TTYC_CS1, TTYCODE_STRING, "Cs" },
{ TTYC_CSR, TTYCODE_STRING, "csr" },
{ TTYC_CSR1, TTYCODE_STRING, "Csr" },
{ TTYC_CUB, TTYCODE_STRING, "cub" },
{ TTYC_CUB1, TTYCODE_STRING, "cub1" },
{ TTYC_CUD, TTYCODE_STRING, "cud" },
{ TTYC_CUD1, TTYCODE_STRING, "cud1" },
{ TTYC_CUF, TTYCODE_STRING, "cuf" },
{ TTYC_CUF1, TTYCODE_STRING, "cuf1" },
{ TTYC_CUP, TTYCODE_STRING, "cup" },
{ TTYC_CUU, TTYCODE_STRING, "cuu" },
{ TTYC_CUU1, TTYCODE_STRING, "cuu1" },
{ TTYC_DCH, TTYCODE_STRING, "dch" },
{ TTYC_DCH1, TTYCODE_STRING, "dch1" },
{ TTYC_DIM, TTYCODE_STRING, "dim" },
{ TTYC_DL, TTYCODE_STRING, "dl" },
{ TTYC_DL1, TTYCODE_STRING, "dl1" },
{ TTYC_E3, TTYCODE_STRING, "E3" },
{ TTYC_EL, TTYCODE_STRING, "el" },
{ TTYC_EL1, TTYCODE_STRING, "el1" },
{ TTYC_ENACS, TTYCODE_STRING, "enacs" },
{ TTYC_FSL, TTYCODE_STRING, "fsl" },
{ TTYC_HOME, TTYCODE_STRING, "home" },
{ TTYC_HPA, TTYCODE_STRING, "hpa" },
{ TTYC_ICH, TTYCODE_STRING, "ich" },
{ TTYC_ICH1, TTYCODE_STRING, "ich1" },
{ TTYC_IL, TTYCODE_STRING, "il" },
{ TTYC_IL1, TTYCODE_STRING, "il1" },
{ TTYC_INVIS, TTYCODE_STRING, "invis" },
{ TTYC_IS1, TTYCODE_STRING, "is1" },
{ TTYC_IS2, TTYCODE_STRING, "is2" },
{ TTYC_IS3, TTYCODE_STRING, "is3" },
{ TTYC_KCBT, TTYCODE_STRING, "kcbt" },
{ TTYC_KCUB1, TTYCODE_STRING, "kcub1" },
{ TTYC_KCUD1, TTYCODE_STRING, "kcud1" },
{ TTYC_KCUF1, TTYCODE_STRING, "kcuf1" },
{ TTYC_KCUU1, TTYCODE_STRING, "kcuu1" },
{ TTYC_KDC2, TTYCODE_STRING, "kDC" },
{ TTYC_KDC3, TTYCODE_STRING, "kDC3" },
{ TTYC_KDC4, TTYCODE_STRING, "kDC4" },
{ TTYC_KDC5, TTYCODE_STRING, "kDC5" },
{ TTYC_KDC6, TTYCODE_STRING, "kDC6" },
{ TTYC_KDC7, TTYCODE_STRING, "kDC7" },
{ TTYC_KDCH1, TTYCODE_STRING, "kdch1" },
{ TTYC_KDN2, TTYCODE_STRING, "kDN" },
{ TTYC_KDN3, TTYCODE_STRING, "kDN3" },
{ TTYC_KDN4, TTYCODE_STRING, "kDN4" },
{ TTYC_KDN5, TTYCODE_STRING, "kDN5" },
{ TTYC_KDN6, TTYCODE_STRING, "kDN6" },
{ TTYC_KDN7, TTYCODE_STRING, "kDN7" },
{ TTYC_KEND, TTYCODE_STRING, "kend" },
{ TTYC_KEND2, TTYCODE_STRING, "kEND" },
{ TTYC_KEND3, TTYCODE_STRING, "kEND3" },
{ TTYC_KEND4, TTYCODE_STRING, "kEND4" },
{ TTYC_KEND5, TTYCODE_STRING, "kEND5" },
{ TTYC_KEND6, TTYCODE_STRING, "kEND6" },
{ TTYC_KEND7, TTYCODE_STRING, "kEND7" },
{ TTYC_KF1, TTYCODE_STRING, "kf1" },
{ TTYC_KF10, TTYCODE_STRING, "kf10" },
{ TTYC_KF11, TTYCODE_STRING, "kf11" },
{ TTYC_KF12, TTYCODE_STRING, "kf12" },
{ TTYC_KF13, TTYCODE_STRING, "kf13" },
{ TTYC_KF14, TTYCODE_STRING, "kf14" },
{ TTYC_KF15, TTYCODE_STRING, "kf15" },
{ TTYC_KF16, TTYCODE_STRING, "kf16" },
{ TTYC_KF17, TTYCODE_STRING, "kf17" },
{ TTYC_KF18, TTYCODE_STRING, "kf18" },
{ TTYC_KF19, TTYCODE_STRING, "kf19" },
{ TTYC_KF2, TTYCODE_STRING, "kf2" },
{ TTYC_KF20, TTYCODE_STRING, "kf20" },
{ TTYC_KF3, TTYCODE_STRING, "kf3" },
{ TTYC_KF4, TTYCODE_STRING, "kf4" },
{ TTYC_KF5, TTYCODE_STRING, "kf5" },
{ TTYC_KF6, TTYCODE_STRING, "kf6" },
{ TTYC_KF7, TTYCODE_STRING, "kf7" },
{ TTYC_KF8, TTYCODE_STRING, "kf8" },
{ TTYC_KF9, TTYCODE_STRING, "kf9" },
{ TTYC_KHOM2, TTYCODE_STRING, "kHOM" },
{ TTYC_KHOM3, TTYCODE_STRING, "kHOM3" },
{ TTYC_KHOM4, TTYCODE_STRING, "kHOM4" },
{ TTYC_KHOM5, TTYCODE_STRING, "kHOM5" },
{ TTYC_KHOM6, TTYCODE_STRING, "kHOM6" },
{ TTYC_KHOM7, TTYCODE_STRING, "kHOM7" },
{ TTYC_KHOME, TTYCODE_STRING, "khome" },
{ TTYC_KIC2, TTYCODE_STRING, "kIC" },
{ TTYC_KIC3, TTYCODE_STRING, "kIC3" },
{ TTYC_KIC4, TTYCODE_STRING, "kIC4" },
{ TTYC_KIC5, TTYCODE_STRING, "kIC5" },
{ TTYC_KIC6, TTYCODE_STRING, "kIC6" },
{ TTYC_KIC7, TTYCODE_STRING, "kIC7" },
{ TTYC_KICH1, TTYCODE_STRING, "kich1" },
{ TTYC_KLFT2, TTYCODE_STRING, "kLFT" },
{ TTYC_KLFT3, TTYCODE_STRING, "kLFT3" },
{ TTYC_KLFT4, TTYCODE_STRING, "kLFT4" },
{ TTYC_KLFT5, TTYCODE_STRING, "kLFT5" },
{ TTYC_KLFT6, TTYCODE_STRING, "kLFT6" },
{ TTYC_KLFT7, TTYCODE_STRING, "kLFT7" },
{ TTYC_KMOUS, TTYCODE_STRING, "kmous" },
{ TTYC_KNP, TTYCODE_STRING, "knp" },
{ TTYC_KNXT2, TTYCODE_STRING, "kNXT" },
{ TTYC_KNXT3, TTYCODE_STRING, "kNXT3" },
{ TTYC_KNXT4, TTYCODE_STRING, "kNXT4" },
{ TTYC_KNXT5, TTYCODE_STRING, "kNXT5" },
{ TTYC_KNXT6, TTYCODE_STRING, "kNXT6" },
{ TTYC_KNXT7, TTYCODE_STRING, "kNXT7" },
{ TTYC_KPP, TTYCODE_STRING, "kpp" },
{ TTYC_KPRV2, TTYCODE_STRING, "kPRV" },
{ TTYC_KPRV3, TTYCODE_STRING, "kPRV3" },
{ TTYC_KPRV4, TTYCODE_STRING, "kPRV4" },
{ TTYC_KPRV5, TTYCODE_STRING, "kPRV5" },
{ TTYC_KPRV6, TTYCODE_STRING, "kPRV6" },
{ TTYC_KPRV7, TTYCODE_STRING, "kPRV7" },
{ TTYC_KRIT2, TTYCODE_STRING, "kRIT" },
{ TTYC_KRIT3, TTYCODE_STRING, "kRIT3" },
{ TTYC_KRIT4, TTYCODE_STRING, "kRIT4" },
{ TTYC_KRIT5, TTYCODE_STRING, "kRIT5" },
{ TTYC_KRIT6, TTYCODE_STRING, "kRIT6" },
{ TTYC_KRIT7, TTYCODE_STRING, "kRIT7" },
{ TTYC_KUP2, TTYCODE_STRING, "kUP" },
{ TTYC_KUP3, TTYCODE_STRING, "kUP3" },
{ TTYC_KUP4, TTYCODE_STRING, "kUP4" },
{ TTYC_KUP5, TTYCODE_STRING, "kUP5" },
{ TTYC_KUP6, TTYCODE_STRING, "kUP6" },
{ TTYC_KUP7, TTYCODE_STRING, "kUP7" },
{ TTYC_MS, TTYCODE_STRING, "Ms" },
{ TTYC_OP, TTYCODE_STRING, "op" },
{ TTYC_REV, TTYCODE_STRING, "rev" },
{ TTYC_RI, TTYCODE_STRING, "ri" },
{ TTYC_RMACS, TTYCODE_STRING, "rmacs" },
{ TTYC_RMCUP, TTYCODE_STRING, "rmcup" },
{ TTYC_RMKX, TTYCODE_STRING, "rmkx" },
{ TTYC_SETAB, TTYCODE_STRING, "setab" },
{ TTYC_SETAF, TTYCODE_STRING, "setaf" },
{ TTYC_SGR0, TTYCODE_STRING, "sgr0" },
{ TTYC_SITM, TTYCODE_STRING, "sitm" },
{ TTYC_SMACS, TTYCODE_STRING, "smacs" },
{ TTYC_SMCUP, TTYCODE_STRING, "smcup" },
{ TTYC_SMKX, TTYCODE_STRING, "smkx" },
{ TTYC_SMSO, TTYCODE_STRING, "smso" },
{ TTYC_SMUL, TTYCODE_STRING, "smul" },
{ TTYC_TSL, TTYCODE_STRING, "tsl" },
{ TTYC_VPA, TTYCODE_STRING, "vpa" },
{ TTYC_XENL, TTYCODE_FLAG, "xenl" },
{ TTYC_XT, TTYCODE_FLAG, "XT" },
};
char *
tty_term_strip(const char *s)
{
const char *ptr;
static char buf[BUFSIZ];
size_t len;
/* Ignore strings with no padding. */
if (strchr(s, '$') == NULL)
return (xstrdup(s));
len = 0;
for (ptr = s; *ptr != '\0'; ptr++) {
if (*ptr == '$' && *(ptr + 1) == '<') {
while (*ptr != '\0' && *ptr != '>')
ptr++;
if (*ptr == '>')
ptr++;
}
buf[len++] = *ptr;
if (len == (sizeof buf) - 1)
break;
}
buf[len] = '\0';
return (xstrdup(buf));
}
void
tty_term_override(struct tty_term *term, const char *overrides)
{
const struct tty_term_code_entry *ent;
struct tty_code *code;
char *termnext, *termstr;
char *entnext, *entstr;
char *s, *ptr, *val;
const char *errstr;
u_int i;
int n, removeflag;
s = xstrdup(overrides);
termnext = s;
while ((termstr = strsep(&termnext, ",")) != NULL) {
entnext = termstr;
entstr = strsep(&entnext, ":");
if (entstr == NULL || entnext == NULL)
continue;
if (fnmatch(entstr, term->name, 0) != 0)
continue;
while ((entstr = strsep(&entnext, ":")) != NULL) {
if (*entstr == '\0')
continue;
val = NULL;
removeflag = 0;
if ((ptr = strchr(entstr, '=')) != NULL) {
*ptr++ = '\0';
val = xstrdup(ptr);
if (strunvis(val, ptr) == -1) {
xfree(val);
val = xstrdup(ptr);
}
} else if (entstr[strlen(entstr) - 1] == '@') {
entstr[strlen(entstr) - 1] = '\0';
removeflag = 1;
} else
val = xstrdup("");
log_debug("%s override: %s %s",
term->name, entstr, removeflag ? "@" : val);
for (i = 0; i < NTTYCODE; i++) {
ent = &tty_term_codes[i];
if (strcmp(entstr, ent->name) != 0)
continue;
code = &term->codes[ent->code];
if (removeflag) {
code->type = TTYCODE_NONE;
continue;
}
switch (ent->type) {
case TTYCODE_NONE:
break;
case TTYCODE_STRING:
if (code->type == TTYCODE_STRING)
xfree(code->value.string);
code->value.string = xstrdup(val);
code->type = ent->type;
break;
case TTYCODE_NUMBER:
n = strtonum(val, 0, INT_MAX, &errstr);
if (errstr != NULL)
break;
code->value.number = n;
code->type = ent->type;
break;
case TTYCODE_FLAG:
code->value.flag = 1;
code->type = ent->type;
break;
}
}
if (val != NULL)
xfree(val);
}
}
xfree(s);
}
struct tty_term *
tty_term_find(char *name, int fd, const char *overrides, char **cause)
{
struct tty_term *term;
const struct tty_term_code_entry *ent;
struct tty_code *code;
u_int i;
int n, error;
char *s;
const char *acs;
LIST_FOREACH(term, &tty_terms, entry) {
if (strcmp(term->name, name) == 0) {
term->references++;
return (term);
}
}
log_debug("new term: %s", name);
term = xmalloc(sizeof *term);
term->name = xstrdup(name);
term->references = 1;
term->flags = 0;
memset(term->codes, 0, sizeof term->codes);
LIST_INSERT_HEAD(&tty_terms, term, entry);
/* Set up curses terminal. */
if (setupterm(name, fd, &error) != OK) {
switch (error) {
case 1:
xasprintf(
cause, "can't use hardcopy terminal: %s", name);
break;
case 0:
xasprintf(
cause, "missing or unsuitable terminal: %s", name);
break;
case -1:
xasprintf(cause, "can't find terminfo database");
break;
default:
xasprintf(cause, "unknown error");
break;
}
goto error;
}
/* Fill in codes. */
for (i = 0; i < NTTYCODE; i++) {
ent = &tty_term_codes[i];
code = &term->codes[ent->code];
code->type = TTYCODE_NONE;
switch (ent->type) {
case TTYCODE_NONE:
break;
case TTYCODE_STRING:
s = tigetstr((char *) ent->name);
if (s == NULL || s == (char *) -1)
break;
code->type = TTYCODE_STRING;
code->value.string = tty_term_strip(s);
break;
case TTYCODE_NUMBER:
n = tigetnum((char *) ent->name);
if (n == -1 || n == -2)
break;
code->type = TTYCODE_NUMBER;
code->value.number = n;
break;
case TTYCODE_FLAG:
n = tigetflag((char *) ent->name);
if (n == -1)
break;
code->type = TTYCODE_FLAG;
code->value.number = n;
break;
}
}
tty_term_override(term, overrides);
/* Delete curses data. */
#if !defined(__FreeBSD_version) || __FreeBSD_version >= 700000
del_curterm(cur_term);
#endif
/* These are always required. */
if (!tty_term_has(term, TTYC_CLEAR)) {
xasprintf(cause, "terminal does not support clear");
goto error;
}
if (!tty_term_has(term, TTYC_CUP)) {
xasprintf(cause, "terminal does not support cup");
goto error;
}
/* These can be emulated so one of the two is required. */
if (!tty_term_has(term, TTYC_CUD1) && !tty_term_has(term, TTYC_CUD)) {
xasprintf(cause, "terminal does not support cud1 or cud");
goto error;
}
/* Figure out if we have 256 or 88 colours. */
if (tty_term_number(term, TTYC_COLORS) == 256)
term->flags |= TERM_256COLOURS;
if (tty_term_number(term, TTYC_COLORS) == 88)
term->flags |= TERM_88COLOURS;
/*
* Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
* rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
*
* This is irritating, most notably because it is impossible to write
* to the very bottom-right of the screen without scrolling.
*
* Flag the terminal here and apply some workarounds in other places to
* do the best possible.
*/
if (!tty_term_flag(term, TTYC_XENL))
term->flags |= TERM_EARLYWRAP;
/* Generate ACS table. If none is present, use nearest ASCII. */
memset(term->acs, 0, sizeof term->acs);
if (tty_term_has(term, TTYC_ACSC))
acs = tty_term_string(term, TTYC_ACSC);
else
acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
term->acs[(u_char) acs[0]][0] = acs[1];
/* On terminals with xterm titles (XT), fill in tsl and fsl. */
if (tty_term_flag(term, TTYC_XT) &&
!tty_term_has(term, TTYC_TSL) &&
!tty_term_has(term, TTYC_FSL)) {
code = &term->codes[TTYC_TSL];
code->value.string = xstrdup("\033]0;");
code->type = TTYCODE_STRING;
code = &term->codes[TTYC_FSL];
code->value.string = xstrdup("\007");
code->type = TTYCODE_STRING;
}
return (term);
error:
tty_term_free(term);
return (NULL);
}
void
tty_term_free(struct tty_term *term)
{
u_int i;
if (--term->references != 0)
return;
LIST_REMOVE(term, entry);
for (i = 0; i < NTTYCODE; i++) {
if (term->codes[i].type == TTYCODE_STRING)
xfree(term->codes[i].value.string);
}
xfree(term->name);
xfree(term);
}
int
tty_term_has(struct tty_term *term, enum tty_code_code code)
{
return (term->codes[code].type != TTYCODE_NONE);
}
const char *
tty_term_string(struct tty_term *term, enum tty_code_code code)
{
if (!tty_term_has(term, code))
return ("");
if (term->codes[code].type != TTYCODE_STRING)
log_fatalx("not a string: %d", code);
return (term->codes[code].value.string);
}
/* No vtparm. Fucking curses. */
const char *
tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
{
return (tparm((char *) tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0));
}
const char *
tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
{
return (tparm((char *) tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0));
}
const char *
tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
{
return (tparm((char *) tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0));
}
const char *
tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a, const void *b)
{
return (tparm((char *) tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0));
}
int
tty_term_number(struct tty_term *term, enum tty_code_code code)
{
if (!tty_term_has(term, code))
return (0);
if (term->codes[code].type != TTYCODE_NUMBER)
log_fatalx("not a number: %d", code);
return (term->codes[code].value.number);
}
int
tty_term_flag(struct tty_term *term, enum tty_code_code code)
{
if (!tty_term_has(term, code))
return (0);
if (term->codes[code].type != TTYCODE_FLAG)
log_fatalx("not a flag: %d", code);
return (term->codes[code].value.flag);
}
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