1/*	$Id: mandoc_aux.c,v 1.10 2017/06/12 19:05:47 schwarze Exp $ */
2/*
3 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18#include "config.h"
19
20#include <sys/types.h>
21
22#if HAVE_ERR
23#include <err.h>
24#endif
25#include <stdarg.h>
26#include <stdlib.h>
27#include <stdio.h>
28#include <string.h>
29
30#include "mandoc.h"
31#include "mandoc_aux.h"
32
33
34int
35mandoc_asprintf(char **dest, const char *fmt, ...)
36{
37	va_list	 ap;
38	int	 ret;
39
40	va_start(ap, fmt);
41	ret = vasprintf(dest, fmt, ap);
42	va_end(ap);
43
44	if (ret == -1)
45		err((int)MANDOCLEVEL_SYSERR, NULL);
46	return ret;
47}
48
49void *
50mandoc_calloc(size_t num, size_t size)
51{
52	void	*ptr;
53
54	ptr = calloc(num, size);
55	if (ptr == NULL)
56		err((int)MANDOCLEVEL_SYSERR, NULL);
57	return ptr;
58}
59
60void *
61mandoc_malloc(size_t size)
62{
63	void	*ptr;
64
65	ptr = malloc(size);
66	if (ptr == NULL)
67		err((int)MANDOCLEVEL_SYSERR, NULL);
68	return ptr;
69}
70
71void *
72mandoc_realloc(void *ptr, size_t size)
73{
74	ptr = realloc(ptr, size);
75	if (ptr == NULL)
76		err((int)MANDOCLEVEL_SYSERR, NULL);
77	return ptr;
78}
79
80void *
81mandoc_reallocarray(void *ptr, size_t num, size_t size)
82{
83	ptr = reallocarray(ptr, num, size);
84	if (ptr == NULL)
85		err((int)MANDOCLEVEL_SYSERR, NULL);
86	return ptr;
87}
88
89void *
90mandoc_recallocarray(void *ptr, size_t oldnum, size_t num, size_t size)
91{
92	ptr = recallocarray(ptr, oldnum, num, size);
93	if (ptr == NULL)
94		err((int)MANDOCLEVEL_SYSERR, NULL);
95	return ptr;
96}
97
98char *
99mandoc_strdup(const char *ptr)
100{
101	char	*p;
102
103	p = strdup(ptr);
104	if (p == NULL)
105		err((int)MANDOCLEVEL_SYSERR, NULL);
106	return p;
107}
108
109char *
110mandoc_strndup(const char *ptr, size_t sz)
111{
112	char	*p;
113
114	p = mandoc_malloc(sz + 1);
115	memcpy(p, ptr, sz);
116	p[(int)sz] = '\0';
117	return p;
118}
119