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
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* Copyright (c) 2004
* Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <limits.h>
#include <signal.h>
#include <sys/types.h>
#ifndef SSIZE_MAX
#define SSIZE_MAX ((ssize_t)((size_t)-1 >> 1))
#endif
static inline void sigclearmask(void)
{
#if defined(HAVE_SIGSETMASK) && \
(!defined(__GLIBC__) || \
(defined(__GNUC__) && (__GNUC__ * 1000 + __GNUC_MINOR__) >= 4006))
#ifdef __GLIBC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
sigsetmask(0);
#ifdef __GLIBC__
#pragma GCC diagnostic pop
#endif
#else
sigset_t set;
sigemptyset(&set);
sigprocmask(SIG_SETMASK, &set, 0);
#endif
}
#ifndef HAVE_MEMPCPY
void *mempcpy(void *, const void *, size_t);
#endif
#ifndef HAVE_STPCPY
char *stpcpy(char *, const char *);
#endif
#ifndef HAVE_STRCHRNUL
char *strchrnul(const char *, int);
#endif
#ifndef HAVE_STRSIGNAL
char *strsignal(int);
#endif
#ifndef HAVE_STRTOD
static inline double strtod(const char *nptr, char **endptr)
{
*endptr = (char *)nptr;
return 0;
}
#endif
#ifndef HAVE_STRTOIMAX
#define strtoimax strtoll
#endif
#ifndef HAVE_STRTOUMAX
#define strtoumax strtoull
#endif
#ifndef HAVE_BSEARCH
void *bsearch(const void *, const void *, size_t, size_t,
int (*)(const void *, const void *));
#endif
#ifndef HAVE_KILLPG
static inline int killpg(pid_t pid, int signal)
{
#ifdef DEBUG
if (pid < 0)
abort();
#endif
return kill(-pid, signal);
}
#endif
#ifndef HAVE_SYSCONF
#define _SC_CLK_TCK 2
long sysconf(int) __attribute__((__noreturn__));
#endif
#if !HAVE_DECL_ISBLANK
int isblank(int c);
#endif
/*
* A trick to suppress uninitialized variable warning without generating any
* code
*/
#define uninitialized_var(x) x = x
|