File: [local] / src / usr.bin / tmux / tty-term.c (download)
Revision 1.68, Thu Oct 3 10:24:06 2019 UTC (4 years, 8 months ago) by nicm
Branch: MAIN
CVS Tags: OPENBSD_6_6_BASE, OPENBSD_6_6
Changes since 1.67: +3 -3 lines
Do not lazily use BUFSIZ for "I don't care what size" when building
strings because it is only guaranteed to be 256 bytes and even the
default 1024 is not always enough. Reported by Gregory Pakosz.
|
/* $OpenBSD: tty-term.c,v 1.68 2019/10/03 10:24:06 nicm Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* 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 <fnmatch.h>
#include <stdlib.h>
#include <string.h>
#include <term.h>
#include <vis.h>
#include "tmux.h"
static void tty_term_override(struct tty_term *, const char *);
static char *tty_term_strip(const char *);
struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
enum tty_code_type {
TTYCODE_NONE = 0,
TTYCODE_STRING,
TTYCODE_NUMBER,
TTYCODE_FLAG,
};
struct tty_code {
enum tty_code_type type;
union {
char *string;
int number;
int flag;
} value;
};
struct tty_term_code_entry {
enum tty_code_type type;
const char *name;
};
static const struct tty_term_code_entry tty_term_codes[] = {
[TTYC_ACSC] = { TTYCODE_STRING, "acsc" },
[TTYC_AX] = { TTYCODE_FLAG, "AX" },
[TTYC_BCE] = { TTYCODE_FLAG, "bce" },
[TTYC_BEL] = { TTYCODE_STRING, "bel" },
[TTYC_BLINK] = { TTYCODE_STRING, "blink" },
[TTYC_BOLD] = { TTYCODE_STRING, "bold" },
[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_CSR] = { TTYCODE_STRING, "csr" },
[TTYC_CS] = { TTYCODE_STRING, "Cs" },
[TTYC_CUB1] = { TTYCODE_STRING, "cub1" },
[TTYC_CUB] = { TTYCODE_STRING, "cub" },
[TTYC_CUD1] = { TTYCODE_STRING, "cud1" },
[TTYC_CUD] = { TTYCODE_STRING, "cud" },
[TTYC_CUF1] = { TTYCODE_STRING, "cuf1" },
[TTYC_CUF] = { TTYCODE_STRING, "cuf" },
[TTYC_CUP] = { TTYCODE_STRING, "cup" },
[TTYC_CUU1] = { TTYCODE_STRING, "cuu1" },
[TTYC_CUU] = { TTYCODE_STRING, "cuu" },
[TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" },
[TTYC_DCH1] = { TTYCODE_STRING, "dch1" },
[TTYC_DCH] = { TTYCODE_STRING, "dch" },
[TTYC_DIM] = { TTYCODE_STRING, "dim" },
[TTYC_DL1] = { TTYCODE_STRING, "dl1" },
[TTYC_DL] = { TTYCODE_STRING, "dl" },
[TTYC_E3] = { TTYCODE_STRING, "E3" },
[TTYC_ECH] = { TTYCODE_STRING, "ech" },
[TTYC_ED] = { TTYCODE_STRING, "ed" },
[TTYC_EL1] = { TTYCODE_STRING, "el1" },
[TTYC_EL] = { TTYCODE_STRING, "el" },
[TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
[TTYC_FSL] = { TTYCODE_STRING, "fsl" },
[TTYC_HOME] = { TTYCODE_STRING, "home" },
[TTYC_HPA] = { TTYCODE_STRING, "hpa" },
[TTYC_ICH1] = { TTYCODE_STRING, "ich1" },
[TTYC_ICH] = { TTYCODE_STRING, "ich" },
[TTYC_IL1] = { TTYCODE_STRING, "il1" },
[TTYC_IL] = { TTYCODE_STRING, "il" },
[TTYC_INDN] = { TTYCODE_STRING, "indn" },
[TTYC_INVIS] = { TTYCODE_STRING, "invis" },
[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" }, /* not kDN2 */
[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_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_KEND] = { TTYCODE_STRING, "kend" },
[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_KF1] = { TTYCODE_STRING, "kf1" },
[TTYC_KF20] = { TTYCODE_STRING, "kf20" },
[TTYC_KF21] = { TTYCODE_STRING, "kf21" },
[TTYC_KF22] = { TTYCODE_STRING, "kf22" },
[TTYC_KF23] = { TTYCODE_STRING, "kf23" },
[TTYC_KF24] = { TTYCODE_STRING, "kf24" },
[TTYC_KF25] = { TTYCODE_STRING, "kf25" },
[TTYC_KF26] = { TTYCODE_STRING, "kf26" },
[TTYC_KF27] = { TTYCODE_STRING, "kf27" },
[TTYC_KF28] = { TTYCODE_STRING, "kf28" },
[TTYC_KF29] = { TTYCODE_STRING, "kf29" },
[TTYC_KF2] = { TTYCODE_STRING, "kf2" },
[TTYC_KF30] = { TTYCODE_STRING, "kf30" },
[TTYC_KF31] = { TTYCODE_STRING, "kf31" },
[TTYC_KF32] = { TTYCODE_STRING, "kf32" },
[TTYC_KF33] = { TTYCODE_STRING, "kf33" },
[TTYC_KF34] = { TTYCODE_STRING, "kf34" },
[TTYC_KF35] = { TTYCODE_STRING, "kf35" },
[TTYC_KF36] = { TTYCODE_STRING, "kf36" },
[TTYC_KF37] = { TTYCODE_STRING, "kf37" },
[TTYC_KF38] = { TTYCODE_STRING, "kf38" },
[TTYC_KF39] = { TTYCODE_STRING, "kf39" },
[TTYC_KF3] = { TTYCODE_STRING, "kf3" },
[TTYC_KF40] = { TTYCODE_STRING, "kf40" },
[TTYC_KF41] = { TTYCODE_STRING, "kf41" },
[TTYC_KF42] = { TTYCODE_STRING, "kf42" },
[TTYC_KF43] = { TTYCODE_STRING, "kf43" },
[TTYC_KF44] = { TTYCODE_STRING, "kf44" },
[TTYC_KF45] = { TTYCODE_STRING, "kf45" },
[TTYC_KF46] = { TTYCODE_STRING, "kf46" },
[TTYC_KF47] = { TTYCODE_STRING, "kf47" },
[TTYC_KF48] = { TTYCODE_STRING, "kf48" },
[TTYC_KF49] = { TTYCODE_STRING, "kf49" },
[TTYC_KF4] = { TTYCODE_STRING, "kf4" },
[TTYC_KF50] = { TTYCODE_STRING, "kf50" },
[TTYC_KF51] = { TTYCODE_STRING, "kf51" },
[TTYC_KF52] = { TTYCODE_STRING, "kf52" },
[TTYC_KF53] = { TTYCODE_STRING, "kf53" },
[TTYC_KF54] = { TTYCODE_STRING, "kf54" },
[TTYC_KF55] = { TTYCODE_STRING, "kf55" },
[TTYC_KF56] = { TTYCODE_STRING, "kf56" },
[TTYC_KF57] = { TTYCODE_STRING, "kf57" },
[TTYC_KF58] = { TTYCODE_STRING, "kf58" },
[TTYC_KF59] = { TTYCODE_STRING, "kf59" },
[TTYC_KF5] = { TTYCODE_STRING, "kf5" },
[TTYC_KF60] = { TTYCODE_STRING, "kf60" },
[TTYC_KF61] = { TTYCODE_STRING, "kf61" },
[TTYC_KF62] = { TTYCODE_STRING, "kf62" },
[TTYC_KF63] = { TTYCODE_STRING, "kf63" },
[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_KIND] = { TTYCODE_STRING, "kind" },
[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_KRI] = { TTYCODE_STRING, "kri" },
[TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */
[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_RGB] = { TTYCODE_FLAG, "RGB" },
[TTYC_RI] = { TTYCODE_STRING, "ri" },
[TTYC_RIN] = { TTYCODE_STRING, "rin" },
[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_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
[TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" },
[TTYC_SETULC] = { TTYCODE_STRING, "Setulc" },
[TTYC_SE] = { TTYCODE_STRING, "Se" },
[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_SMOL] = { TTYCODE_STRING, "Smol" },
[TTYC_SMSO] = { TTYCODE_STRING, "smso" },
[TTYC_SMULX] = { TTYCODE_STRING, "Smulx" },
[TTYC_SMUL] = { TTYCODE_STRING, "smul" },
[TTYC_SMXX] = { TTYCODE_STRING, "smxx" },
[TTYC_SS] = { TTYCODE_STRING, "Ss" },
[TTYC_TC] = { TTYCODE_FLAG, "Tc" },
[TTYC_TSL] = { TTYCODE_STRING, "tsl" },
[TTYC_U8] = { TTYCODE_NUMBER, "U8" },
[TTYC_VPA] = { TTYCODE_STRING, "vpa" },
[TTYC_XENL] = { TTYCODE_FLAG, "xenl" },
[TTYC_XT] = { TTYCODE_FLAG, "XT" },
};
u_int
tty_term_ncodes(void)
{
return (nitems(tty_term_codes));
}
static char *
tty_term_strip(const char *s)
{
const char *ptr;
static char buf[8192];
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));
}
static char *
tty_term_override_next(const char *s, size_t *offset)
{
static char value[8192];
size_t n = 0, at = *offset;
if (s[at] == '\0')
return (NULL);
while (s[at] != '\0') {
if (s[at] == ':') {
if (s[at + 1] == ':') {
value[n++] = ':';
at += 2;
} else
break;
} else {
value[n++] = s[at];
at++;
}
if (n == (sizeof value) - 1)
return (NULL);
}
if (s[at] != '\0')
*offset = at + 1;
else
*offset = at;
value[n] = '\0';
return (value);
}
static void
tty_term_override(struct tty_term *term, const char *override)
{
const struct tty_term_code_entry *ent;
struct tty_code *code;
size_t offset = 0;
char *cp, *value, *s;
const char *errstr;
u_int i;
int n, remove;
s = tty_term_override_next(override, &offset);
if (s == NULL || fnmatch(s, term->name, 0) != 0)
return;
while ((s = tty_term_override_next(override, &offset)) != NULL) {
if (*s == '\0')
continue;
value = NULL;
remove = 0;
if ((cp = strchr(s, '=')) != NULL) {
*cp++ = '\0';
value = xstrdup(cp);
if (strunvis(value, cp) == -1) {
free(value);
value = xstrdup(cp);
}
} else if (s[strlen(s) - 1] == '@') {
s[strlen(s) - 1] = '\0';
remove = 1;
} else
value = xstrdup("");
if (remove)
log_debug("%s override: %s@", term->name, s);
else if (*value == '\0')
log_debug("%s override: %s", term->name, s);
else
log_debug("%s override: %s=%s", term->name, s, value);
for (i = 0; i < tty_term_ncodes(); i++) {
ent = &tty_term_codes[i];
if (strcmp(s, ent->name) != 0)
continue;
code = &term->codes[i];
if (remove) {
code->type = TTYCODE_NONE;
continue;
}
switch (ent->type) {
case TTYCODE_NONE:
break;
case TTYCODE_STRING:
if (code->type == TTYCODE_STRING)
free(code->value.string);
code->value.string = xstrdup(value);
code->type = ent->type;
break;
case TTYCODE_NUMBER:
n = strtonum(value, 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;
}
}
free(value);
}
}
struct tty_term *
tty_term_find(char *name, int fd, char **cause)
{
struct tty_term *term;
const struct tty_term_code_entry *ent;
struct tty_code *code;
struct options_entry *o;
struct options_array_item *a;
union options_value *ov;
u_int i;
int n, error;
const char *s, *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;
term->codes = xcalloc(tty_term_ncodes(), 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 < tty_term_ncodes(); i++) {
ent = &tty_term_codes[i];
code = &term->codes[i];
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.flag = n;
break;
}
}
/* Apply terminal overrides. */
o = options_get_only(global_options, "terminal-overrides");
a = options_array_first(o);
while (a != NULL) {
ov = options_array_item_value(a);
tty_term_override(term, ov->string);
a = options_array_next(a);
}
/* Delete curses data. */
del_curterm(cur_term);
/* 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 colours (or more). */
if (tty_term_number(term, TTYC_COLORS) >= 256 ||
tty_term_has(term, TTYC_RGB))
term->flags |= TERM_256COLOURS;
/*
* 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;
}
/*
* On terminals with RGB colour (Tc or RGB), fill in setrgbf and
* setrgbb if they are missing.
*/
if ((tty_term_flag(term, TTYC_TC) || tty_term_flag(term, TTYC_RGB)) &&
!tty_term_has(term, TTYC_SETRGBF) &&
!tty_term_has(term, TTYC_SETRGBB)) {
code = &term->codes[TTYC_SETRGBF];
code->value.string = xstrdup("\033[38;2;%p1%d;%p2%d;%p3%dm");
code->type = TTYCODE_STRING;
code = &term->codes[TTYC_SETRGBB];
code->value.string = xstrdup("\033[48;2;%p1%d;%p2%d;%p3%dm");
code->type = TTYCODE_STRING;
}
/* Log it. */
for (i = 0; i < tty_term_ncodes(); i++)
log_debug("%s%s", name, tty_term_describe(term, i));
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 < tty_term_ncodes(); i++) {
if (term->codes[i].type == TTYCODE_STRING)
free(term->codes[i].value.string);
}
free(term->codes);
free(term->name);
free(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)
fatalx("not a string: %d", code);
return (term->codes[code].value.string);
}
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));
}
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));
}
const char *
tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b, int c)
{
return (tparm((char *) tty_term_string(term, code), a, b, c));
}
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));
}
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));
}
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)
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)
fatalx("not a flag: %d", code);
return (term->codes[code].value.flag);
}
const char *
tty_term_describe(struct tty_term *term, enum tty_code_code code)
{
static char s[256];
char out[128];
switch (term->codes[code].type) {
case TTYCODE_NONE:
xsnprintf(s, sizeof s, "%4u: %s: [missing]",
code, tty_term_codes[code].name);
break;
case TTYCODE_STRING:
strnvis(out, term->codes[code].value.string, sizeof out,
VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
xsnprintf(s, sizeof s, "%4u: %s: (string) %s",
code, tty_term_codes[code].name,
out);
break;
case TTYCODE_NUMBER:
xsnprintf(s, sizeof s, "%4u: %s: (number) %d",
code, tty_term_codes[code].name,
term->codes[code].value.number);
break;
case TTYCODE_FLAG:
xsnprintf(s, sizeof s, "%4u: %s: (flag) %s",
code, tty_term_codes[code].name,
term->codes[code].value.flag ? "true" : "false");
break;
}
return (s);
}
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