vis.c

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Author : Guillem Jover
Date : 2018-05-22 13:50:44
Hash : e4e15ed2
Message : Fix strnvis() and strnunvis() NetBSD ABI break The NetBSD implementations have different prototypes to the ones coming from OpenBSD, which will break builds, and have caused segfaults at run-time. We provide now both interfaces with different prototypes as different version nodes allow selecting them at compile-time, defaulting for now to the OpenBSD one to avoid build-time breakage, while emitting a compile-time warning. Later on, in 0.10.0, we will be switching the compile-time default to the NetBSD version. Ref: http://gnats.netbsd.org/44977 Fixes: https://bugs.debian.org/899282

test/vis.c

/*
 * Copyright © 2018 Guillem Jover <guillem@hadrons.org>
 *
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
 */

#define LIBBSD_NETBSD_VIS 1

#include <assert.h>
#include <string.h>
#include <vis.h>

int
main(int argc, char **argv)
{
	char str[200];
	char unstr[200];

	strnvis(str, 10, "0123456789abcdef", 0);
	assert(strcmp(str, "0123456789") == 0);

	strnunvis(unstr, 100, str);
	assert(strcmp(unstr, "0123456789") == 0);

	return 0;
}

kc3-lang/libbsd/test/vis.c

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