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Add ability to use system libedit and update bundled libedit.
The version of libedit that is bundled with asterisk is old and has some bugs. This patch updates the bundled version of libedit within asterisk, and also updates asterisk to use the system libedit instead if one is available (and pkg-config is available). This review integrates several patches from other users specifically kkm and tzafrir. (closes issue #15929) Reported by: kkm Patches: 015929-astcli-editrc-trunk.240324.diff uploaded by kkm (license 888) (issue #16858) Reported by: jw-asterisk (closes issue #17039) Reported by: tzafrir Patches: 0001-allow-using-system-copy-of-libedit.patch uploaded by tzafrir (license 46) Review: https://reviewboard.asterisk.org/r/807/ git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@280019 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Sean Bright
@@ -1,695 +0,0 @@
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/* $NetBSD: chared.c,v 1.15 2002/03/18 16:00:50 christos Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Christos Zoulas of Cornell University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "config.h"
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#if !defined(lint) && !defined(SCCSID)
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#if 0
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static char sccsid[] = "@(#)chared.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: chared.c,v 1.15 2002/03/18 16:00:50 christos Exp $");
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#endif
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#endif /* not lint && not SCCSID */
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/*
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* chared.c: Character editor utilities
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*/
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#include <stdlib.h>
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#include "el.h"
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/* value to leave unused in line buffer */
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#define EL_LEAVE 2
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/* cv_undo():
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* Handle state for the vi undo command
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*/
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protected void
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cv_undo(EditLine *el,int action, size_t size, char *ptr)
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{
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c_undo_t *vu = &el->el_chared.c_undo;
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vu->action = action;
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vu->ptr = ptr;
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vu->isize = size;
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(void) memcpy(vu->buf, vu->ptr, size);
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#ifdef DEBUG_UNDO
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(void) fprintf(el->el_errfile, "Undo buffer \"%s\" size = +%d -%d\n",
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vu->ptr, vu->isize, vu->dsize);
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#endif
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}
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/* c_insert():
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* Insert num characters
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*/
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protected void
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c_insert(EditLine *el, int num)
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{
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char *cp;
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if (el->el_line.lastchar + num >= el->el_line.limit)
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return; /* can't go past end of buffer */
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if (el->el_line.cursor < el->el_line.lastchar) {
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/* if I must move chars */
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for (cp = el->el_line.lastchar; cp >= el->el_line.cursor; cp--)
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cp[num] = *cp;
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}
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el->el_line.lastchar += num;
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}
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/* c_delafter():
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* Delete num characters after the cursor
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*/
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protected void
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c_delafter(EditLine *el, int num)
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{
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if (el->el_line.cursor + num > el->el_line.lastchar)
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num = el->el_line.lastchar - el->el_line.cursor;
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if (num > 0) {
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char *cp;
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if (el->el_map.current != el->el_map.emacs)
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cv_undo(el, INSERT, (size_t)num, el->el_line.cursor);
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for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
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*cp = cp[num];
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el->el_line.lastchar -= num;
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}
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}
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/* c_delbefore():
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* Delete num characters before the cursor
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*/
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protected void
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c_delbefore(EditLine *el, int num)
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{
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if (el->el_line.cursor - num < el->el_line.buffer)
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num = el->el_line.cursor - el->el_line.buffer;
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if (num > 0) {
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char *cp;
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if (el->el_map.current != el->el_map.emacs)
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cv_undo(el, INSERT, (size_t)num,
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el->el_line.cursor - num);
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for (cp = el->el_line.cursor - num;
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cp <= el->el_line.lastchar;
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cp++)
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*cp = cp[num];
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el->el_line.lastchar -= num;
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}
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}
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/* ce__isword():
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* Return if p is part of a word according to emacs
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*/
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protected int
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ce__isword(int p)
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{
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return (isalpha(p) || isdigit(p) || strchr("*?_-.[]~=", p) != NULL);
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}
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/* cv__isword():
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* Return if p is part of a word according to vi
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*/
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protected int
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cv__isword(int p)
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{
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return (!isspace(p));
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}
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/* c__prev_word():
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* Find the previous word
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*/
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protected char *
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c__prev_word(char *p, char *low, int n, int (*wtest)(int))
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{
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p--;
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while (n--) {
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while ((p >= low) && !(*wtest)((unsigned char) *p))
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p--;
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while ((p >= low) && (*wtest)((unsigned char) *p))
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p--;
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}
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/* cp now points to one character before the word */
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p++;
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if (p < low)
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p = low;
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/* cp now points where we want it */
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return (p);
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}
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/* c__next_word():
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* Find the next word
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*/
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protected char *
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c__next_word(char *p, char *high, int n, int (*wtest)(int))
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{
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while (n--) {
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while ((p < high) && !(*wtest)((unsigned char) *p))
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p++;
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while ((p < high) && (*wtest)((unsigned char) *p))
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p++;
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}
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if (p > high)
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p = high;
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/* p now points where we want it */
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return (p);
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}
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/* cv_next_word():
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* Find the next word vi style
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*/
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protected char *
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cv_next_word(EditLine *el, char *p, char *high, int n, int (*wtest)(int))
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{
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int test;
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while (n--) {
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test = (*wtest)((unsigned char) *p);
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while ((p < high) && (*wtest)((unsigned char) *p) == test)
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p++;
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/*
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* vi historically deletes with cw only the word preserving the
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* trailing whitespace! This is not what 'w' does..
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*/
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if (el->el_chared.c_vcmd.action != (DELETE|INSERT))
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while ((p < high) && isspace((unsigned char) *p))
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p++;
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}
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/* p now points where we want it */
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if (p > high)
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return (high);
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else
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return (p);
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}
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/* cv_prev_word():
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* Find the previous word vi style
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*/
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protected char *
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cv_prev_word(EditLine *el, char *p, char *low, int n, int (*wtest)(int))
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{
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int test;
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while (n--) {
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p--;
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/*
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* vi historically deletes with cb only the word preserving the
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* leading whitespace! This is not what 'b' does..
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*/
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if (el->el_chared.c_vcmd.action != (DELETE|INSERT))
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while ((p > low) && isspace((unsigned char) *p))
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p--;
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test = (*wtest)((unsigned char) *p);
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while ((p >= low) && (*wtest)((unsigned char) *p) == test)
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p--;
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p++;
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while (isspace((unsigned char) *p))
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p++;
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}
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/* p now points where we want it */
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if (p < low)
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return (low);
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else
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return (p);
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}
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#ifdef notdef
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/* c__number():
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* Ignore character p points to, return number appearing after that.
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* A '$' by itself means a big number; "$-" is for negative; '^' means 1.
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* Return p pointing to last char used.
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*/
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protected char *
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c__number(
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char *p, /* character position */
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int *num, /* Return value */
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int dval) /* dval is the number to subtract from like $-3 */
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{
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int i;
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int sign = 1;
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if (*++p == '^') {
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*num = 1;
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return (p);
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}
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if (*p == '$') {
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if (*++p != '-') {
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*num = 0x7fffffff; /* Handle $ */
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return (--p);
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}
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sign = -1; /* Handle $- */
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++p;
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}
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for (i = 0; isdigit((unsigned char) *p); i = 10 * i + *p++ - '0')
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continue;
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*num = (sign < 0 ? dval - i : i);
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return (--p);
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}
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#endif
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/* cv_delfini():
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* Finish vi delete action
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*/
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protected void
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cv_delfini(EditLine *el)
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{
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int size;
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int oaction;
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if (el->el_chared.c_vcmd.action & INSERT)
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el->el_map.current = el->el_map.key;
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oaction = el->el_chared.c_vcmd.action;
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el->el_chared.c_vcmd.action = NOP;
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if (el->el_chared.c_vcmd.pos == 0)
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return;
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if (el->el_line.cursor > el->el_chared.c_vcmd.pos) {
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size = (int) (el->el_line.cursor - el->el_chared.c_vcmd.pos);
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c_delbefore(el, size);
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el->el_line.cursor = el->el_chared.c_vcmd.pos;
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re_refresh_cursor(el);
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} else if (el->el_line.cursor < el->el_chared.c_vcmd.pos) {
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size = (int)(el->el_chared.c_vcmd.pos - el->el_line.cursor);
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c_delafter(el, size);
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} else {
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size = 1;
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c_delafter(el, size);
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}
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switch (oaction) {
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case DELETE|INSERT:
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el->el_chared.c_undo.action = DELETE|INSERT;
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break;
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case DELETE:
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el->el_chared.c_undo.action = INSERT;
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break;
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case NOP:
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case INSERT:
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default:
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EL_ABORT((el->el_errfile, "Bad oaction %d\n", oaction));
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break;
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}
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el->el_chared.c_undo.ptr = el->el_line.cursor;
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el->el_chared.c_undo.dsize = size;
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}
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#ifdef notdef
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/* ce__endword():
|
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* Go to the end of this word according to emacs
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*/
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protected char *
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ce__endword(char *p, char *high, int n)
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{
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p++;
|
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|
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while (n--) {
|
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while ((p < high) && isspace((unsigned char) *p))
|
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p++;
|
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while ((p < high) && !isspace((unsigned char) *p))
|
||||
p++;
|
||||
}
|
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|
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p--;
|
||||
return (p);
|
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}
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#endif
|
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|
||||
|
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/* cv__endword():
|
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* Go to the end of this word according to vi
|
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*/
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protected char *
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cv__endword(char *p, char *high, int n)
|
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{
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p++;
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|
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while (n--) {
|
||||
while ((p < high) && isspace((unsigned char) *p))
|
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p++;
|
||||
|
||||
if (isalnum((unsigned char) *p))
|
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while ((p < high) && isalnum((unsigned char) *p))
|
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p++;
|
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else
|
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while ((p < high) && !(isspace((unsigned char) *p) ||
|
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isalnum((unsigned char) *p)))
|
||||
p++;
|
||||
}
|
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p--;
|
||||
return (p);
|
||||
}
|
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|
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/* ch_init():
|
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* Initialize the character editor
|
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*/
|
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protected int
|
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ch_init(EditLine *el)
|
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{
|
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el->el_line.buffer = (char *) el_malloc(EL_BUFSIZ);
|
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if (el->el_line.buffer == NULL)
|
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return (-1);
|
||||
|
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(void) memset(el->el_line.buffer, 0, EL_BUFSIZ);
|
||||
el->el_line.cursor = el->el_line.buffer;
|
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el->el_line.lastchar = el->el_line.buffer;
|
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el->el_line.limit = &el->el_line.buffer[EL_BUFSIZ - 2];
|
||||
|
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el->el_chared.c_undo.buf = (char *) el_malloc(EL_BUFSIZ);
|
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if (el->el_chared.c_undo.buf == NULL)
|
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return (-1);
|
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(void) memset(el->el_chared.c_undo.buf, 0, EL_BUFSIZ);
|
||||
el->el_chared.c_undo.action = NOP;
|
||||
el->el_chared.c_undo.isize = 0;
|
||||
el->el_chared.c_undo.dsize = 0;
|
||||
el->el_chared.c_undo.ptr = el->el_line.buffer;
|
||||
|
||||
el->el_chared.c_vcmd.action = NOP;
|
||||
el->el_chared.c_vcmd.pos = el->el_line.buffer;
|
||||
el->el_chared.c_vcmd.ins = el->el_line.buffer;
|
||||
|
||||
el->el_chared.c_kill.buf = (char *) el_malloc(EL_BUFSIZ);
|
||||
if (el->el_chared.c_kill.buf == NULL)
|
||||
return (-1);
|
||||
(void) memset(el->el_chared.c_kill.buf, 0, EL_BUFSIZ);
|
||||
el->el_chared.c_kill.mark = el->el_line.buffer;
|
||||
el->el_chared.c_kill.last = el->el_chared.c_kill.buf;
|
||||
|
||||
el->el_map.current = el->el_map.key;
|
||||
|
||||
el->el_state.inputmode = MODE_INSERT; /* XXX: save a default */
|
||||
el->el_state.doingarg = 0;
|
||||
el->el_state.metanext = 0;
|
||||
el->el_state.argument = 1;
|
||||
el->el_state.lastcmd = ED_UNASSIGNED;
|
||||
|
||||
el->el_chared.c_macro.nline = NULL;
|
||||
el->el_chared.c_macro.level = -1;
|
||||
el->el_chared.c_macro.macro = (char **) el_malloc(EL_MAXMACRO *
|
||||
sizeof(char *));
|
||||
if (el->el_chared.c_macro.macro == NULL)
|
||||
return (-1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* ch_reset():
|
||||
* Reset the character editor
|
||||
*/
|
||||
protected void
|
||||
ch_reset(EditLine *el)
|
||||
{
|
||||
el->el_line.cursor = el->el_line.buffer;
|
||||
el->el_line.lastchar = el->el_line.buffer;
|
||||
|
||||
el->el_chared.c_undo.action = NOP;
|
||||
el->el_chared.c_undo.isize = 0;
|
||||
el->el_chared.c_undo.dsize = 0;
|
||||
el->el_chared.c_undo.ptr = el->el_line.buffer;
|
||||
|
||||
el->el_chared.c_vcmd.action = NOP;
|
||||
el->el_chared.c_vcmd.pos = el->el_line.buffer;
|
||||
el->el_chared.c_vcmd.ins = el->el_line.buffer;
|
||||
|
||||
el->el_chared.c_kill.mark = el->el_line.buffer;
|
||||
|
||||
el->el_map.current = el->el_map.key;
|
||||
|
||||
el->el_state.inputmode = MODE_INSERT; /* XXX: save a default */
|
||||
el->el_state.doingarg = 0;
|
||||
el->el_state.metanext = 0;
|
||||
el->el_state.argument = 1;
|
||||
el->el_state.lastcmd = ED_UNASSIGNED;
|
||||
|
||||
el->el_chared.c_macro.level = -1;
|
||||
|
||||
el->el_history.eventno = 0;
|
||||
}
|
||||
|
||||
/* ch_enlargebufs():
|
||||
* Enlarge line buffer to be able to hold twice as much characters.
|
||||
* Returns 1 if successful, 0 if not.
|
||||
*/
|
||||
protected int
|
||||
ch_enlargebufs(el, addlen)
|
||||
EditLine *el;
|
||||
size_t addlen;
|
||||
{
|
||||
size_t sz, newsz;
|
||||
char *newbuffer, *oldbuf, *oldkbuf;
|
||||
|
||||
sz = el->el_line.limit - el->el_line.buffer + EL_LEAVE;
|
||||
newsz = sz * 2;
|
||||
/*
|
||||
* If newly required length is longer than current buffer, we need
|
||||
* to make the buffer big enough to hold both old and new stuff.
|
||||
*/
|
||||
if (addlen > sz) {
|
||||
while(newsz - sz < addlen)
|
||||
newsz *= 2;
|
||||
}
|
||||
|
||||
/*
|
||||
* Reallocate line buffer.
|
||||
*/
|
||||
newbuffer = el_realloc(el->el_line.buffer, newsz);
|
||||
if (!newbuffer)
|
||||
return 0;
|
||||
|
||||
/* zero the newly added memory, leave old data in */
|
||||
(void) memset(&newbuffer[sz], 0, newsz - sz);
|
||||
|
||||
oldbuf = el->el_line.buffer;
|
||||
|
||||
el->el_line.buffer = newbuffer;
|
||||
el->el_line.cursor = newbuffer + (el->el_line.cursor - oldbuf);
|
||||
el->el_line.lastchar = newbuffer + (el->el_line.lastchar - oldbuf);
|
||||
el->el_line.limit = &newbuffer[newsz - EL_LEAVE];
|
||||
|
||||
/*
|
||||
* Reallocate kill buffer.
|
||||
*/
|
||||
newbuffer = el_realloc(el->el_chared.c_kill.buf, newsz);
|
||||
if (!newbuffer)
|
||||
return 0;
|
||||
|
||||
/* zero the newly added memory, leave old data in */
|
||||
(void) memset(&newbuffer[sz], 0, newsz - sz);
|
||||
|
||||
oldkbuf = el->el_chared.c_kill.buf;
|
||||
|
||||
el->el_chared.c_kill.buf = newbuffer;
|
||||
el->el_chared.c_kill.last = newbuffer +
|
||||
(el->el_chared.c_kill.last - oldkbuf);
|
||||
el->el_chared.c_kill.mark = el->el_line.buffer +
|
||||
(el->el_chared.c_kill.mark - oldbuf);
|
||||
|
||||
/*
|
||||
* Reallocate undo buffer.
|
||||
*/
|
||||
newbuffer = el_realloc(el->el_chared.c_undo.buf, newsz);
|
||||
if (!newbuffer)
|
||||
return 0;
|
||||
|
||||
/* zero the newly added memory, leave old data in */
|
||||
(void) memset(&newbuffer[sz], 0, newsz - sz);
|
||||
|
||||
el->el_chared.c_undo.ptr = el->el_line.buffer +
|
||||
(el->el_chared.c_undo.ptr - oldbuf);
|
||||
el->el_chared.c_undo.buf = newbuffer;
|
||||
|
||||
if (!hist_enlargebuf(el, sz, newsz))
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* ch_end():
|
||||
* Free the data structures used by the editor
|
||||
*/
|
||||
protected void
|
||||
ch_end(EditLine *el)
|
||||
{
|
||||
el_free((ptr_t) el->el_line.buffer);
|
||||
el->el_line.buffer = NULL;
|
||||
el->el_line.limit = NULL;
|
||||
el_free((ptr_t) el->el_chared.c_undo.buf);
|
||||
el->el_chared.c_undo.buf = NULL;
|
||||
el_free((ptr_t) el->el_chared.c_kill.buf);
|
||||
el->el_chared.c_kill.buf = NULL;
|
||||
el_free((ptr_t) el->el_chared.c_macro.macro);
|
||||
el->el_chared.c_macro.macro = NULL;
|
||||
ch_reset(el);
|
||||
}
|
||||
|
||||
|
||||
/* el_insertstr():
|
||||
* Insert string at cursorI
|
||||
*/
|
||||
public int
|
||||
el_insertstr(EditLine *el, const char *s)
|
||||
{
|
||||
size_t len;
|
||||
|
||||
if ((len = strlen(s)) == 0)
|
||||
return (-1);
|
||||
if (el->el_line.lastchar + len >= el->el_line.limit) {
|
||||
if (!ch_enlargebufs(el, len))
|
||||
return (-1);
|
||||
}
|
||||
|
||||
c_insert(el, (int)len);
|
||||
while (*s)
|
||||
*el->el_line.cursor++ = *s++;
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* el_deletestr():
|
||||
* Delete num characters before the cursor
|
||||
*/
|
||||
public void
|
||||
el_deletestr(EditLine *el, int n)
|
||||
{
|
||||
if (n <= 0)
|
||||
return;
|
||||
|
||||
if (el->el_line.cursor < &el->el_line.buffer[n])
|
||||
return;
|
||||
|
||||
c_delbefore(el, n); /* delete before dot */
|
||||
el->el_line.cursor -= n;
|
||||
if (el->el_line.cursor < el->el_line.buffer)
|
||||
el->el_line.cursor = el->el_line.buffer;
|
||||
}
|
||||
|
||||
/* c_gets():
|
||||
* Get a string
|
||||
*/
|
||||
protected int
|
||||
c_gets(EditLine *el, char *buf)
|
||||
{
|
||||
char ch;
|
||||
int len = 0;
|
||||
|
||||
for (ch = 0; ch == 0;) {
|
||||
if (el_getc(el, &ch) != 1)
|
||||
return (ed_end_of_file(el, 0));
|
||||
switch (ch) {
|
||||
case 0010: /* Delete and backspace */
|
||||
case 0177:
|
||||
if (len > 1) {
|
||||
*el->el_line.cursor-- = '\0';
|
||||
el->el_line.lastchar = el->el_line.cursor;
|
||||
buf[len--] = '\0';
|
||||
} else {
|
||||
el->el_line.buffer[0] = '\0';
|
||||
el->el_line.lastchar = el->el_line.buffer;
|
||||
el->el_line.cursor = el->el_line.buffer;
|
||||
return (CC_REFRESH);
|
||||
}
|
||||
re_refresh(el);
|
||||
ch = 0;
|
||||
break;
|
||||
|
||||
case 0033: /* ESC */
|
||||
case '\r': /* Newline */
|
||||
case '\n':
|
||||
break;
|
||||
|
||||
default:
|
||||
if (len >= EL_BUFSIZ)
|
||||
term_beep(el);
|
||||
else {
|
||||
buf[len++] = ch;
|
||||
*el->el_line.cursor++ = ch;
|
||||
el->el_line.lastchar = el->el_line.cursor;
|
||||
}
|
||||
re_refresh(el);
|
||||
ch = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
buf[len] = ch;
|
||||
return (len);
|
||||
}
|
||||
|
||||
|
||||
/* c_hpos():
|
||||
* Return the current horizontal position of the cursor
|
||||
*/
|
||||
protected int
|
||||
c_hpos(EditLine *el)
|
||||
{
|
||||
char *ptr;
|
||||
|
||||
/*
|
||||
* Find how many characters till the beginning of this line.
|
||||
*/
|
||||
if (el->el_line.cursor == el->el_line.buffer)
|
||||
return (0);
|
||||
else {
|
||||
for (ptr = el->el_line.cursor - 1;
|
||||
ptr >= el->el_line.buffer && *ptr != '\n';
|
||||
ptr--)
|
||||
continue;
|
||||
return (el->el_line.cursor - ptr - 1);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user