77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/* $NetBSD: code.c,v 1.3 1999/11/09 22:41:53 wennmach Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1999
|
|
* Contributed to NetBSD by Alexandre Wennmacher
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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/param.h>
|
|
#include <vis.h>
|
|
#include <fts.h> /* XXX needed for extern.h" */
|
|
#include "extern.h"
|
|
|
|
#define STRVISFLAG (VIS_CSTYLE | VIS_WHITE)
|
|
|
|
static char visbuf[4*MAXPATHLEN + 1];
|
|
|
|
char *
|
|
encode(dst, src)
|
|
char *dst;
|
|
const char *src;
|
|
{
|
|
char *pv, *pd;
|
|
|
|
(void)strvis(visbuf, src, STRVISFLAG);
|
|
for (pv = visbuf, pd = dst; *pv != '\0';) {
|
|
if (*pv == '\\') *pd++ = *pv++; /* already encoded, skip */
|
|
if (*pv == '#') *pd++ = '\\'; /* encode '#' */
|
|
*pd++ = *pv++;
|
|
}
|
|
*pd = '\0';
|
|
return dst;
|
|
}
|
|
|
|
char *
|
|
decode(dst, src)
|
|
char *dst;
|
|
const char *src;
|
|
{
|
|
char *pv, *ps;
|
|
|
|
for (ps = (char *)src, pv = visbuf; *ps != '\0';) {
|
|
if (*ps == '\\' && *(ps + 1) == '#') ps++; /* encoded '#' */
|
|
*pv++ = *ps++;
|
|
}
|
|
*pv = '\0';
|
|
(void)strunvis(dst, visbuf);
|
|
return dst;
|
|
}
|