/****************************************************************************
- * Copyright (c) 1998-2015,2016 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2017,2018 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 *
*/
#include <tparm_type.h>
+#include <clear_cmd.h>
#include <reset_cmd.h>
#if !PURE_TERMINFO
#include <termsort.c>
#endif
#include <transform.h>
+#include <tty_settings.h>
-MODULE_ID("$Id: tput.c,v 1.57 2016/08/20 21:46:31 tom Exp $")
+MODULE_ID("$Id: tput.c,v 1.79 2018/06/30 15:56:01 Nicholas.Marriott Exp $")
#define PUTS(s) fputs(s, stdout)
static char *prg_name;
static bool is_init = FALSE;
static bool is_reset = FALSE;
+static bool is_clear = FALSE;
static void
quit(int status, const char *fmt,...)
static void
usage(void)
{
- fprintf(stderr, "usage: %s [-V] [-S] [-T term] capname\n", prg_name);
- ExitProgram(EXIT_FAILURE);
+#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 void
-check_aliases(const char *name, bool program)
+static char *
+check_aliases(char *name, bool program)
{
- is_init = same_program(name, program ? PROG_INIT : "init");
- is_reset = same_program(name, program ? PROG_RESET : "reset");
+ 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
return result;
}
+/*
+ * Returns nonzero on error.
+ */
static int
-tput_cmd(int argc, char *argv[])
+tput_cmd(int fd, TTY * saved_settings, bool opt_x, int argc, char *argv[])
{
NCURSES_CONST char *name;
char *s;
bool termcap = FALSE;
#endif
- if ((name = argv[0]) == 0)
- name = "";
- check_aliases(name, FALSE);
+ name = check_aliases(argv[0], FALSE);
if (is_reset || is_init) {
- TTY mode, oldmode;
+ TTY oldmode;
int terasechar = -1; /* new erase character */
int intrchar = -1; /* new interrupt character */
int tkillchar = -1; /* new kill character */
- (void) save_tty_settings(&mode);
-
- reset_start(stdout, is_reset, is_init);
- reset_tty_settings(&mode);
+ if (is_reset) {
+ reset_start(stdout, TRUE, FALSE);
+ reset_tty_settings(fd, saved_settings);
+ } else {
+ reset_start(stdout, FALSE, TRUE);
+ }
- set_control_chars(&mode, terasechar, intrchar, tkillchar);
- set_conversions(&mode);
- if (send_init_strings(&oldmode)) {
+#if HAVE_SIZECHANGE
+ set_window_size(fd, &lines, &columns);
+#else
+ (void) fd;
+#endif
+ set_control_chars(saved_settings, terasechar, intrchar, tkillchar);
+ set_conversions(saved_settings);
+ if (send_init_strings(fd, &oldmode)) {
reset_flush();
}
- update_tty_settings(&oldmode, &mode);
+ update_tty_settings(&oldmode, saved_settings);
return 0;
}
#if !PURE_TERMINFO
retry:
#endif
- if ((status = tigetflag(name)) != -1) {
+ 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);
if ((np = _nc_find_entry(name, _nc_get_hash_table(termcap))) != 0) {
switch (np->nte_type) {
case BOOLEAN:
- if (bool_from_termcap[np->nte_index])
- name = boolnames[np->nte_index];
+ name = boolnames[np->nte_index];
break;
case NUMBER:
- if (num_from_termcap[np->nte_index])
- name = numnames[np->nte_index];
+ name = numnames[np->nte_index];
break;
case STRING:
- if (str_from_termcap[np->nte_index])
- name = strnames[np->nte_index];
+ name = strnames[np->nte_index];
break;
}
goto retry;
}
}
#endif
- quit(4, "unknown terminfo capability '%s'", name);
- } else if (s != ABSENT_STRING) {
+ quit(ErrCapName, "unknown terminfo capability '%s'", name);
+ } else if (VALID_STRING(s)) {
if (argc > 1) {
int k;
int ignored;
int c;
char buf[BUFSIZ];
int result = 0;
+ int fd;
+ TTY tty_settings;
+ bool opt_x = FALSE; /* clear scrollback if possible */
+ bool is_alias;
+ bool need_tty;
- check_aliases(prg_name = _nc_rootname(argv[0]), TRUE);
+ prg_name = check_aliases(_nc_rootname(argv[0]), TRUE);
term = getenv("TERM");
- while ((c = getopt(argc, argv, "ST:V")) != -1) {
+ 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_reset || is_init) {
+ if (is_alias) {
if (optind-- < argc) {
argc -= optind;
argv += optind;
}
if (term == 0 || *term == '\0')
- quit(2, "No value for $TERM and no -T specified");
+ quit(ErrUsage, "No value for $TERM and no -T specified");
+
+ fd = save_tty_settings(&tty_settings, need_tty);
- if (setupterm(term, STDOUT_FILENO, &errret) != OK && errret <= 0)
- quit(3, "unknown terminal \"%s\"", term);
+ if (setupterm(term, fd, &errret) != OK && errret <= 0)
+ quit(ErrTermType, "unknown terminal \"%s\"", term);
if (cmdline) {
- if ((argc <= 0) && !is_reset && !is_init)
+ if ((argc <= 0) && !is_alias)
usage();
- ExitProgram(tput_cmd(argc, argv));
+ ExitProgram(tput_cmd(fd, &tty_settings, opt_x, argc, argv));
}
while (fgets(buf, sizeof(buf), stdin) != 0) {
argvec[argnum] = 0;
if (argnum != 0
- && tput_cmd(argnum, argvec) != 0) {
+ && tput_cmd(fd, &tty_settings, opt_x, argnum, argvec) != 0) {
if (result == 0)
- result = 4; /* will return value >4 */
+ result = ErrSystem(0); /* will return value >4 */
++result;
}
}
projects / ncurses.git / blobdiff