ncursesw-morphos/progs/tput.c
Thomas E. Dickey f6b436c4fb ncurses 6.2 - patch 20210925
+ add kbeg to xterm+keypad to accommodate termcap applications -TD
+ add smglp and smgrp to vt420+lrmm, to provide useful data for the
  "tabs" +m option -TD
+ build-fix for gcc 3.4.3 with Solaris10, which does not allow forward
  reference of anonymous struct typedef.
+ modify tput to allow multiple commands per line.
+ minor fixes for tset manpage.
2021-09-25 22:18:46 +00:00

438 lines
11 KiB
C

/****************************************************************************
* Copyright 2018-2020,2021 Thomas E. Dickey *
* Copyright 1998-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Thomas E. Dickey 1996-on *
****************************************************************************/
/*
* tput.c -- shellscript access to terminal capabilities
*
* by Eric S. Raymond <esr@snark.thyrsus.com>, portions based on code from
* Ross Ridge's mytinfo package.
*/
#include <tparm_type.h>
#include <clear_cmd.h>
#include <reset_cmd.h>
#include <transform.h>
#include <tty_settings.h>
MODULE_ID("$Id: tput.c,v 1.94 2021/09/19 00:06:44 tom Exp $")
#define PUTS(s) fputs(s, stdout)
const char *_nc_progname = "tput";
static char *prg_name;
static bool is_init = FALSE;
static bool is_reset = FALSE;
static bool is_clear = FALSE;
static GCC_NORETURN void
quit(int status, const char *fmt, ...)
{
va_list argp;
va_start(argp, fmt);
fprintf(stderr, "%s: ", prg_name);
vfprintf(stderr, fmt, argp);
fprintf(stderr, "\n");
va_end(argp);
ExitProgram(status);
}
static GCC_NORETURN void
usage(void)
{
#define KEEP(s) s "\n"
static const char msg[] =
{
KEEP("")
KEEP("Options:")
KEEP(" -S << read commands from standard input")
KEEP(" -T TERM use this instead of $TERM")
KEEP(" -V print curses-version")
KEEP(" -x do not try to clear scrollback")
KEEP("")
KEEP("Commands:")
KEEP(" clear clear the screen")
KEEP(" init initialize the terminal")
KEEP(" reset reinitialize the terminal")
KEEP(" capname unlike clear/init/reset, print value for capability \"capname\"")
};
#undef KEEP
(void) fprintf(stderr, "Usage: %s [options] [command]\n", prg_name);
fputs(msg, stderr);
ExitProgram(ErrUsage);
}
static char *
check_aliases(char *name, bool program)
{
static char my_init[] = "init";
static char my_reset[] = "reset";
static char my_clear[] = "clear";
char *result = name;
if ((is_init = same_program(name, program ? PROG_INIT : my_init)))
result = my_init;
if ((is_reset = same_program(name, program ? PROG_RESET : my_reset)))
result = my_reset;
if ((is_clear = same_program(name, program ? PROG_CLEAR : my_clear)))
result = my_clear;
return result;
}
static int
exit_code(int token, int value)
{
int result = 99;
switch (token) {
case BOOLEAN:
result = !value; /* TRUE=0, FALSE=1 */
break;
case NUMBER:
result = 0; /* always zero */
break;
case STRING:
result = value; /* 0=normal, 1=missing */
break;
}
return result;
}
/*
* Returns nonzero on error.
*/
static int
tput_cmd(int fd, TTY * settings, bool opt_x, int argc, char **argv, int *used)
{
NCURSES_CONST char *name;
char *s;
int status;
#if !PURE_TERMINFO
bool termcap = FALSE;
#endif
name = check_aliases(argv[0], FALSE);
*used = 1;
if (is_reset || is_init) {
TTY oldmode;
int terasechar = -1; /* new erase character */
int intrchar = -1; /* new interrupt character */
int tkillchar = -1; /* new kill character */
if (is_reset) {
reset_start(stdout, TRUE, FALSE);
reset_tty_settings(fd, settings);
} else {
reset_start(stdout, FALSE, TRUE);
}
#if HAVE_SIZECHANGE
set_window_size(fd, &lines, &columns);
#else
(void) fd;
#endif
set_control_chars(settings, terasechar, intrchar, tkillchar);
set_conversions(settings);
if (send_init_strings(fd, &oldmode)) {
reset_flush();
}
update_tty_settings(&oldmode, settings);
return 0;
}
if (strcmp(name, "longname") == 0) {
PUTS(longname());
return 0;
}
#if !PURE_TERMINFO
retry:
#endif
if (strcmp(name, "clear") == 0) {
return (clear_cmd(opt_x) == ERR) ? ErrUsage : 0;
} else if ((status = tigetflag(name)) != -1) {
return exit_code(BOOLEAN, status);
} else if ((status = tigetnum(name)) != CANCELLED_NUMERIC) {
(void) printf("%d\n", status);
return exit_code(NUMBER, 0);
} else if ((s = tigetstr(name)) == CANCELLED_STRING) {
#if !PURE_TERMINFO
if (!termcap) {
const struct name_table_entry *np;
termcap = TRUE;
if ((np = _nc_find_entry(name, _nc_get_hash_table(termcap))) != 0) {
switch (np->nte_type) {
case BOOLEAN:
name = boolnames[np->nte_index];
break;
case NUMBER:
name = numnames[np->nte_index];
break;
case STRING:
name = strnames[np->nte_index];
break;
}
goto retry;
}
}
#endif
quit(ErrCapName, "unknown terminfo capability '%s'", name);
} else if (VALID_STRING(s)) {
if (argc > 1) {
int k;
int analyzed;
int popcount;
long numbers[1 + NUM_PARM];
char *strings[1 + NUM_PARM];
char *p_is_s[NUM_PARM];
TParams paramType;
/* Nasty hack time. The tparm function needs to see numeric
* parameters as numbers, not as pointers to their string
* representations
*/
for (k = 1; (k < argc) && (k <= NUM_PARM); k++) {
char *tmp = 0;
strings[k] = argv[k];
numbers[k] = strtol(argv[k], &tmp, 0);
if (tmp == 0 || *tmp != 0)
numbers[k] = 0;
}
for (k = argc; k <= NUM_PARM; k++) {
numbers[k] = 0;
strings[k] = 0;
}
paramType = tparm_type(name);
#if NCURSES_XNAMES
/*
* If the capability is an extended one, analyze the string.
*/
if (paramType == Numbers) {
struct name_table_entry const *entry_ptr;
entry_ptr = _nc_find_type_entry(name, STRING, FALSE);
if (entry_ptr == NULL) {
paramType = Other;
}
}
#endif
popcount = 0;
_nc_reset_tparm(NULL);
switch (paramType) {
case Num_Str:
s = TPARM_2(s, numbers[1], strings[2]);
analyzed = 2;
break;
case Num_Str_Str:
s = TPARM_3(s, numbers[1], strings[2], strings[3]);
analyzed = 3;
break;
case Numbers:
analyzed = _nc_tparm_analyze(NULL, s, p_is_s, &popcount);
#define myParam(n) numbers[n]
s = TIPARM_9(s,
myParam(1),
myParam(2),
myParam(3),
myParam(4),
myParam(5),
myParam(6),
myParam(7),
myParam(8),
myParam(9));
#undef myParam
break;
case Other:
/* FALLTHRU */
default:
analyzed = _nc_tparm_analyze(NULL, s, p_is_s, &popcount);
#define myParam(n) (p_is_s[n - 1] != 0 ? ((TPARM_ARG) strings[n]) : numbers[n])
s = TPARM_9(s,
myParam(1),
myParam(2),
myParam(3),
myParam(4),
myParam(5),
myParam(6),
myParam(7),
myParam(8),
myParam(9));
#undef myParam
break;
}
if (analyzed < popcount) {
analyzed = popcount;
}
*used += analyzed;
}
/* use putp() in order to perform padding */
putp(s);
return exit_code(STRING, 0);
}
return exit_code(STRING, 1);
}
int
main(int argc, char **argv)
{
char *term;
int errret;
bool cmdline = TRUE;
int c;
char buf[BUFSIZ];
int result = 0;
int fd;
int used;
TTY tty_settings;
bool opt_x = FALSE; /* clear scrollback if possible */
bool is_alias;
bool need_tty;
prg_name = check_aliases(_nc_rootname(argv[0]), TRUE);
term = getenv("TERM");
while ((c = getopt(argc, argv, "ST:Vx")) != -1) {
switch (c) {
case 'S':
cmdline = FALSE;
break;
case 'T':
use_env(FALSE);
use_tioctl(TRUE);
term = optarg;
break;
case 'V':
puts(curses_version());
ExitProgram(EXIT_SUCCESS);
case 'x': /* do not try to clear scrollback */
opt_x = TRUE;
break;
default:
usage();
/* NOTREACHED */
}
}
is_alias = (is_clear || is_reset || is_init);
need_tty = ((is_reset || is_init) ||
(optind < argc &&
(!strcmp(argv[optind], "reset") ||
!strcmp(argv[optind], "init"))));
/*
* Modify the argument list to omit the options we processed.
*/
if (is_alias) {
if (optind-- < argc) {
argc -= optind;
argv += optind;
}
argv[0] = prg_name;
} else {
argc -= optind;
argv += optind;
}
if (term == 0 || *term == '\0')
quit(ErrUsage, "No value for $TERM and no -T specified");
fd = save_tty_settings(&tty_settings, need_tty);
if (setupterm(term, fd, &errret) != OK && errret <= 0)
quit(ErrTermType, "unknown terminal \"%s\"", term);
if (cmdline) {
int code = 0;
if ((argc <= 0) && !is_alias)
usage();
while (argc > 0) {
code = tput_cmd(fd, &tty_settings, opt_x, argc, argv, &used);
if (code != 0)
break;
argc -= used;
argv += used;
}
ExitProgram(code);
}
while (fgets(buf, sizeof(buf), stdin) != 0) {
size_t need = strlen(buf);
char **argvec = typeCalloc(char *, need + 1);
char **argnow;
int argnum = 0;
char *cp;
if (argvec == NULL) {
quit(ErrSystem(1), strerror(errno));
}
/* split the buffer into tokens */
for (cp = buf; *cp; cp++) {
if (isspace(UChar(*cp))) {
*cp = '\0';
} else if (cp == buf || cp[-1] == '\0') {
argvec[argnum++] = cp;
if (argnum >= (int) need)
break;
}
}
argnow = argvec;
while (argnum > 0) {
int code = tput_cmd(fd, &tty_settings, opt_x, argnum, argnow, &used);
if (code != 0) {
if (result == 0)
result = ErrSystem(0); /* will return value >4 */
++result;
}
argnum -= used;
argnow += used;
}
free(argvec);
}
ExitProgram(result);
}