xref: /freebsd/contrib/mandoc/mandoc_aux.c (revision 61d06d6b)
1 /*	$Id: mandoc_aux.c,v 1.11 2018/02/07 20:04:57 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 
34 int
mandoc_asprintf(char ** dest,const char * fmt,...)35 mandoc_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 
49 void *
mandoc_calloc(size_t num,size_t size)50 mandoc_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 
60 void *
mandoc_malloc(size_t size)61 mandoc_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 
71 void *
mandoc_realloc(void * ptr,size_t size)72 mandoc_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 
80 void *
mandoc_reallocarray(void * ptr,size_t num,size_t size)81 mandoc_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 
89 void *
mandoc_recallocarray(void * ptr,size_t oldnum,size_t num,size_t size)90 mandoc_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 
98 char *
mandoc_strdup(const char * ptr)99 mandoc_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 
109 char *
mandoc_strndup(const char * ptr,size_t sz)110 mandoc_strndup(const char *ptr, size_t sz)
111 {
112 	char	*p;
113 
114 	p = strndup(ptr, sz);
115 	if (p == NULL)
116 		err((int)MANDOCLEVEL_SYSERR, NULL);
117 	return p;
118 }
119