This file is indexed.

/usr/include/newlib/sys/select.h is in libnewlib-dev 2.4.0.20160527-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 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
/* select.h
   Copyright 1998, 1999, 2000, 2001, 2005, 2009 Red Hat, Inc.

   Written by Geoffrey Noer <noer@cygnus.com>

This file is part of Cygwin.

This software is a copyrighted work licensed under the terms of the
Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
details. */

#ifndef _SYS_SELECT_H
#define _SYS_SELECT_H

/* We don't define fd_set and friends if we are compiling POSIX
   source, or if we have included (or may include as indicated
   by __USE_W32_SOCKETS) the W32api winsock[2].h header which
   defines Windows versions of them.   Note that a program which
   includes the W32api winsock[2].h header must know what it is doing;
   it must not call the Cygwin select function.
*/
# if !(defined (_WINSOCK_H) || defined (_WINSOCKAPI_) || defined (__USE_W32_SOCKETS))

#include <sys/cdefs.h>
#include <sys/_sigset.h>
#include <sys/_timeval.h>
#include <sys/timespec.h>

#if !defined(_SIGSET_T_DECLARED)
#define	_SIGSET_T_DECLARED
typedef	__sigset_t	sigset_t;
#endif

#  define _SYS_TYPES_FD_SET
/*
 * Select uses bit masks of file descriptors in longs.
 * These macros manipulate such bit fields (the filesystem macros use chars).
 * FD_SETSIZE may be defined by the user, but the default here
 * should be >= NOFILE (param.h).
 */
#  ifndef	FD_SETSIZE
#	define	FD_SETSIZE	64
#  endif

typedef	unsigned long	fd_mask;
#  define	NFDBITS	(sizeof (fd_mask) * 8)	/* bits per mask */
#  ifndef	_howmany
#	define	_howmany(x,y)	(((x)+((y)-1))/(y))
#  endif

/* We use a macro for fd_set so that including Sockets.h afterwards
   can work.  */
typedef	struct _types_fd_set {
	fd_mask	fds_bits[_howmany(FD_SETSIZE, NFDBITS)];
} _types_fd_set;

#define fd_set _types_fd_set

#  define	FD_SET(n, p)	((p)->fds_bits[(n)/NFDBITS] |= (1L << ((n) % NFDBITS)))
#  define	FD_CLR(n, p)	((p)->fds_bits[(n)/NFDBITS] &= ~(1L << ((n) % NFDBITS)))
#  define	FD_ISSET(n, p)	((p)->fds_bits[(n)/NFDBITS] & (1L << ((n) % NFDBITS)))
#  define	FD_ZERO(p)	(__extension__ (void)({ \
     size_t __i; \
     char *__tmp = (char *)p; \
     for (__i = 0; __i < sizeof (*(p)); ++__i) \
       *__tmp++ = 0; \
}))

#if !defined (__INSIDE_CYGWIN_NET__)

__BEGIN_DECLS

int select __P ((int __n, fd_set *__readfds, fd_set *__writefds,
		 fd_set *__exceptfds, struct timeval *__timeout));
#if __POSIX_VISIBLE >= 200112
int pselect __P ((int __n, fd_set *__readfds, fd_set *__writefds,
		  fd_set *__exceptfds, const struct timespec *__timeout,
		  const sigset_t *__set));
#endif

__END_DECLS

#endif /* !__INSIDE_CYGWIN_NET__ */

#endif /* !(_WINSOCK_H || _WINSOCKAPI_ || __USE_W32_SOCKETS) */

#endif /* sys/select.h */