77 lines
1.9 KiB
C
Executable File
77 lines
1.9 KiB
C
Executable File
/* Copyright (c) 1988 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ident "@(#)newkey.c 1.5 92/07/14 SMI" /* SVr4.0 1.4 */
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#include "curses_inc.h"
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/*
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* Set a new key or a new macro.
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*
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* rcvchars: the pattern identifying the key
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* keyval: the value to return when the key is recognized
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* macro: if this is not a function key but a macro,
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* tgetch() will block on macros.
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*/
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newkey(rcvchars, keyval, macro)
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char *rcvchars;
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short keyval;
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bool macro;
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{
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register _KEY_MAP **keys, *key_info,
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**prev_keys = cur_term->_keys;
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short *numkeys = &cur_term->_ksz, len;
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char *str;
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if ((!rcvchars) || (*rcvchars == '\0') || (keyval < 0) ||
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(((keys = (_KEY_MAP **) malloc(sizeof (_KEY_MAP *) * (*numkeys + 1))) == NULL)))
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{
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goto bad;
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}
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len = strlen(rcvchars) + 1;
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if ((key_info = (_KEY_MAP *) malloc(sizeof (_KEY_MAP) + len)) == NULL)
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{
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free (keys);
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bad :
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term_errno = TERM_BAD_MALLOC;
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#ifdef DEBUG
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strcpy(term_parm_err, "newkey");
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#endif /* DEBUG */
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return (ERR);
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}
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if (macro)
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{
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(void) memcpy((char *) keys, (char *) prev_keys, (int) (*numkeys * sizeof (_KEY_MAP *)));
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keys[*numkeys] = key_info;
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}
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else
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{
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short *first = &(cur_term->_first_macro);
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(void) memcpy((char *) keys, (char *) prev_keys, (int) (*first * sizeof (_KEY_MAP *)));
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(void) memcpy((char *) &(keys[*first + 1]), (char *) &(prev_keys[*first]),
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(int) ((*numkeys - *first) * sizeof (_KEY_MAP *)));
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keys[(*first)++] = key_info;
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cur_term->_lastmacro_ordered++;
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}
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if (prev_keys != NULL)
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free(prev_keys);
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cur_term->_keys = keys;
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(*numkeys)++;
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key_info->_sends = str = (char *) key_info + sizeof(_KEY_MAP);
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(void) memcpy(str, rcvchars, len);
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key_info->_keyval = keyval;
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cur_term->funckeystarter[*str] |= (macro ? _MACRO : _KEY);
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return (OK);
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}
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