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      1 /* $NetBSD: xwrapper.c,v 1.3 2021/04/10 19:49:59 nia Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2008 Joerg Sonnenberger <joerg (at) NetBSD.org>.
      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  *
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in
     15  *    the documentation and/or other materials provided with the
     16  *    distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
     22  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
     24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     27  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     28  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #if HAVE_CONFIG_H
     33 #include "config.h"
     34 #endif
     35 #include <nbcompat.h>
     36 #if HAVE_SYS_CDEFS_H
     37 #include <sys/cdefs.h>
     38 #endif
     39 __RCSID("$NetBSD: xwrapper.c,v 1.3 2021/04/10 19:49:59 nia Exp $");
     40 
     41 #if HAVE_ERR_H
     42 #include <err.h>
     43 #endif
     44 #include <stdarg.h>
     45 #include <stdio.h>
     46 #include <stdlib.h>
     47 #include <string.h>
     48 
     49 #include "lib.h"
     50 
     51 char *
     52 xasprintf(const char *fmt, ...)
     53 {
     54 	va_list ap;
     55 	char *buf;
     56 
     57 	va_start(ap, fmt);
     58 	if (vasprintf(&buf, fmt, ap) == -1)
     59 		err(1, "asprintf failed");
     60 	va_end(ap);
     61 	return buf;
     62 }
     63 
     64 void *
     65 xmalloc(size_t len)
     66 {
     67 	void *ptr;
     68 
     69 	if ((ptr = malloc(len)) == NULL)
     70 		err(1, "malloc failed");
     71 	return ptr;
     72 }
     73 
     74 void *
     75 xcalloc(size_t len, size_t n)
     76 {
     77 	void *ptr;
     78 
     79 	if ((ptr = calloc(len, n)) == NULL)
     80 		err(1, "calloc failed");
     81 	return ptr;
     82 }
     83 
     84 void *
     85 xrealloc(void *buf, size_t len)
     86 {
     87 	void *ptr;
     88 
     89 	if ((ptr = realloc(buf, len)) == NULL)
     90 		err(1, "realloc failed");
     91 	return ptr;
     92 }
     93 
     94 char *
     95 xstrdup(const char *str)
     96 {
     97 	char *buf;
     98 
     99 	if ((buf = strdup(str)) == NULL)
    100 		err(1, "strdup failed");
    101 	return buf;
    102 }
    103