1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/* $Id: xstd.c,v 1.12 2009/03/19 16:40:49 kristaps Exp $ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <assert.h>
#include <err.h>
#include <stdlib.h>
#include <string.h>
#include "private.h"
#ifdef __linux__
extern size_t strlcpy(char *, const char *, size_t);
extern size_t strlcat(char *, const char *, size_t);
#endif
/*
* Contains wrappers for common functions to simplify their general
* usage throughout this codebase.
*/
int
xstrcmp(const char *p1, const char *p2)
{
return(0 == strcmp(p1, p2));
}
int
xstrlcat(char *dst, const char *src, size_t sz)
{
return(strlcat(dst, src, sz) < sz);
}
int
xstrlcpy(char *dst, const char *src, size_t sz)
{
return(strlcpy(dst, src, sz) < sz);
}
void *
xrealloc(void *ptr, size_t sz)
{
void *p;
if (NULL == (p = realloc(ptr, sz)))
err(EXIT_FAILURE, "realloc");
return(p);
}
void *
xcalloc(size_t num, size_t sz)
{
void *p;
if (NULL == (p = calloc(num, sz)))
err(EXIT_FAILURE, "calloc");
return(p);
}
char *
xstrdup(const char *p)
{
char *pp;
if (NULL == (pp = strdup(p)))
err(EXIT_FAILURE, "strdup");
return(pp);
}
int
xstrlcpys(char *buf, const struct mdoc_node *n, size_t sz)
{
char *p;
assert(sz > 0);
assert(buf);
*buf = 0;
for ( ; n; n = n->next) {
assert(MDOC_TEXT == n->type);
p = n->string;
if ( ! xstrlcat(buf, p, sz))
return(0);
if (n->next && ! xstrlcat(buf, " ", sz))
return(0);
}
return(1);
}
|
