newkey.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "curses_inc.h"
/*
* Set a new key or a new macro.
*
* rcvchars: the pattern identifying the key
* keyval: the value to return when the key is recognized
* macro: if this is not a function key but a macro,
* tgetch() will block on macros.
*/
int
newkey(char *rcvchars, short keyval, bool macro)
{
_KEY_MAP **keys, *key_info,
**prev_keys = cur_term->_keys;
short *numkeys = &cur_term->_ksz;
char *str;
size_t len;
if ((!rcvchars) || (*rcvchars == '\0') || (keyval < 0) ||
(((keys = (_KEY_MAP **) malloc(sizeof (_KEY_MAP *) *
(*numkeys + 1))) == NULL))) {
goto bad;
}
len = strlen(rcvchars) + 1;
if ((key_info = (_KEY_MAP *) malloc(sizeof (_KEY_MAP) + len)) ==
NULL) {
free(keys);
bad :
term_errno = TERM_BAD_MALLOC;
#ifdef DEBUG
strcpy(term_parm_err, "newkey");
#endif /* DEBUG */
return (ERR);
}
if (macro) {
(void) memcpy((char *) keys, (char *) prev_keys,
(*numkeys * sizeof (_KEY_MAP *)));
keys[*numkeys] = key_info;
} else {
short *first = &(cur_term->_first_macro);
(void) memcpy((char *) keys, (char *) prev_keys,
(*first * sizeof (_KEY_MAP *)));
(void) memcpy((char *) &(keys[*first + 1]),
(char *) &(prev_keys[*first]),
((*numkeys - *first) * sizeof (_KEY_MAP *)));
keys[(*first)++] = key_info;
cur_term->_lastmacro_ordered++;
}
if (prev_keys != NULL)
free(prev_keys);
cur_term->_keys = keys;
(*numkeys)++;
key_info->_sends = str = (char *) key_info + sizeof (_KEY_MAP);
(void) memcpy(str, rcvchars, len);
key_info->_keyval = keyval;
cur_term->funckeystarter[*str] |= (macro ? _MACRO : _KEY);
return (OK);
}