diff options
Diffstat (limited to 'usr/src/lib/libcurses/screen/newkey.c')
-rw-r--r-- | usr/src/lib/libcurses/screen/newkey.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/usr/src/lib/libcurses/screen/newkey.c b/usr/src/lib/libcurses/screen/newkey.c new file mode 100644 index 0000000000..265aa8868f --- /dev/null +++ b/usr/src/lib/libcurses/screen/newkey.c @@ -0,0 +1,112 @@ +/* + * 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); +} |