NetBSD/usr.bin/tput/tput.c

196 lines
5.3 KiB
C

/* $NetBSD: tput.c,v 1.26 2013/02/05 11:31:56 roy Exp $ */
/*-
* Copyright (c) 1980, 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)tput.c 8.3 (Berkeley) 4/28/95";
#endif
__RCSID("$NetBSD: tput.c,v 1.26 2013/02/05 11:31:56 roy Exp $");
#endif /* not lint */
#include <termios.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <term_private.h>
#include <term.h>
#include <unistd.h>
static void usage(void) __dead;
static char **process(const char *, const char *, char **);
int
main(int argc, char **argv)
{
int ch, exitval, n;
char *term;
const char *p, *s;
size_t pl;
term = NULL;
while ((ch = getopt(argc, argv, "T:")) != -1)
switch(ch) {
case 'T':
term = optarg;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (!term && !(term = getenv("TERM")))
errx(2, "No terminal type specified and no TERM "
"variable set in the environment.");
setupterm(term, 0, NULL);
for (exitval = 0; (p = *argv) != NULL; ++argv) {
switch (*p) {
case 'c':
if (!strcmp(p, "clear"))
p = "clear";
break;
case 'i':
if (!strcmp(p, "init")) {
s = tigetstr("is1");
if (s != NULL)
putp(s);
p = "is2";
}
break;
case 'l':
if (!strcmp(p, "longname")) {
(void)printf("%s\n", longname());
continue;
}
break;
case 'r':
if (!strcmp(p, "reset")) {
s = tigetstr("rs1");
if (s != NULL)
putp(s);
p = "rs2";
}
break;
}
pl = strlen(p);
if (((s = tigetstr(p)) != NULL && s != (char *)-1) ||
(pl <= 2 && (s = tgetstr(p, NULL)) != NULL))
argv = process(p, s, argv);
else if ((((n = tigetnum(p)) != -1 && n != -2 ) ||
(pl <= 2 && (n = tgetnum(p)) != -1)))
(void)printf("%d\n", n);
else {
exitval = tigetflag(p);
if (exitval == -1) {
if (pl <= 2)
exitval = !tgetflag(p);
else
exitval = 1;
} else
exitval = !exitval;
}
if (argv == NULL)
break;
}
return argv ? exitval : 2;
}
static char **
process(const char *cap, const char *str, char **argv)
{
static const char errfew[] =
"Not enough arguments (%d) for capability `%s'";
static const char erresc[] =
"Unknown %% escape (%s) for capability `%s'";
static const char errnum[] =
"Expected a numeric argument [%d] (%s) for capability `%s'";
static const char errcharlong[] =
"Platform does not fit a string into a long for capability '%s'";
int i, nparams, piss[TPARM_MAX];
long nums[TPARM_MAX];
char *strs[TPARM_MAX], *tmp;
/* Count how many values we need for this capability. */
errno = 0;
memset(&piss, 0, sizeof(piss));
nparams = _ti_parm_analyse(str, piss, TPARM_MAX);
if (errno == EINVAL)
errx(2, erresc, str, cap);
/* Create our arrays of integers and strings */
for (i = 0; i < nparams; i++) {
if (*++argv == NULL || *argv[0] == '\0')
errx(2, errfew, nparams, cap);
if (piss[i]) {
if (sizeof(char *) > sizeof(long) /* CONSTCOND */)
errx(2, errcharlong, cap);
strs[i] = *argv;
} else {
errno = 0;
nums[i] = strtol(*argv, &tmp, 0);
if ((errno == ERANGE &&
(nums[i] == LONG_MIN || nums[i] == LONG_MAX)) ||
(errno != 0 && nums[i] == 0) ||
tmp == str ||
*tmp != '\0')
errx(2, errnum, i + 1, *argv, cap);
}
}
/* And output */
#define p(i) (i <= nparams ? \
(piss[i - 1] ? (long)strs[i - 1] : nums[i - 1]) : 0)
putp(tparm(str, p(1), p(2), p(3), p(4), p(5), p(6), p(7), p(8), p(9)));
return argv;
}
static void
usage(void)
{
(void)fprintf(stderr,
"Usage: %s [-T term] attribute [attribute-args] ...\n",
getprogname());
exit(2);
}