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      1 /*	$NetBSD: openpam_strlset.c,v 1.4 2023/06/30 21:46:21 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2014 Dag-Erling Smrgrav
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote
     16  *    products derived from this software without specific prior written
     17  *    permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #ifdef HAVE_CONFIG_H
     33 # include "config.h"
     34 #endif
     35 
     36 #include <sys/cdefs.h>
     37 __RCSID("$NetBSD: openpam_strlset.c,v 1.4 2023/06/30 21:46:21 christos Exp $");
     38 
     39 #ifndef HAVE_STRLSET
     40 
     41 #include <stddef.h>
     42 
     43 #include "openpam_strlset.h"
     44 
     45 /*
     46  * like memset(3), but stops at the first NUL byte and NUL-terminates the
     47  * result.  Returns the number of bytes that were written, not including
     48  * the terminating NUL.
     49  */
     50 size_t
     51 openpam_strlset(char *str, int ch, size_t size)
     52 {
     53 	size_t len;
     54 
     55 	for (len = 0; *str && size > 1; ++len, --size)
     56 		*str++ = (char)ch;
     57 	*str = '\0';
     58 	return (++len);
     59 }
     60 
     61 #endif
     62