1*0d9d0fd8Schristos /* $NetBSD: openpam_strlset.c,v 1.4 2023/06/30 21:46:21 christos Exp $ */
2201780c4Schristos
376e8c542Schristos /*-
44cb4af11Schristos * Copyright (c) 2014 Dag-Erling Smørgrav
576e8c542Schristos * All rights reserved.
676e8c542Schristos *
776e8c542Schristos * Redistribution and use in source and binary forms, with or without
876e8c542Schristos * modification, are permitted provided that the following conditions
976e8c542Schristos * are met:
1076e8c542Schristos * 1. Redistributions of source code must retain the above copyright
1176e8c542Schristos * notice, this list of conditions and the following disclaimer.
1276e8c542Schristos * 2. Redistributions in binary form must reproduce the above copyright
1376e8c542Schristos * notice, this list of conditions and the following disclaimer in the
1476e8c542Schristos * documentation and/or other materials provided with the distribution.
1576e8c542Schristos * 3. The name of the author may not be used to endorse or promote
1676e8c542Schristos * products derived from this software without specific prior written
1776e8c542Schristos * permission.
1876e8c542Schristos *
1976e8c542Schristos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
2076e8c542Schristos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2176e8c542Schristos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2276e8c542Schristos * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2376e8c542Schristos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2476e8c542Schristos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2576e8c542Schristos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2676e8c542Schristos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2776e8c542Schristos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2876e8c542Schristos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2976e8c542Schristos * SUCH DAMAGE.
3076e8c542Schristos */
3176e8c542Schristos
3276e8c542Schristos #ifdef HAVE_CONFIG_H
3376e8c542Schristos # include "config.h"
3476e8c542Schristos #endif
3576e8c542Schristos
36201780c4Schristos #include <sys/cdefs.h>
37*0d9d0fd8Schristos __RCSID("$NetBSD: openpam_strlset.c,v 1.4 2023/06/30 21:46:21 christos Exp $");
38201780c4Schristos
3976e8c542Schristos #ifndef HAVE_STRLSET
4076e8c542Schristos
4176e8c542Schristos #include <stddef.h>
4276e8c542Schristos
4376e8c542Schristos #include "openpam_strlset.h"
4476e8c542Schristos
4576e8c542Schristos /*
4676e8c542Schristos * like memset(3), but stops at the first NUL byte and NUL-terminates the
4776e8c542Schristos * result. Returns the number of bytes that were written, not including
4876e8c542Schristos * the terminating NUL.
4976e8c542Schristos */
5076e8c542Schristos size_t
openpam_strlset(char * str,int ch,size_t size)5176e8c542Schristos openpam_strlset(char *str, int ch, size_t size)
5276e8c542Schristos {
5376e8c542Schristos size_t len;
5476e8c542Schristos
5576e8c542Schristos for (len = 0; *str && size > 1; ++len, --size)
56201780c4Schristos *str++ = (char)ch;
5776e8c542Schristos *str = '\0';
5876e8c542Schristos return (++len);
5976e8c542Schristos }
6076e8c542Schristos
6176e8c542Schristos #endif
62