1/*
2 *
3Copyright 1987, 1998 The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24 *
25 * The X Window System is a Trademark of The Open Group.
26 *
27 */
28
29/* This is a collection of things to try and minimize system dependencies
30 * in a "significant" number of source files.
31 */
32
33#ifndef _XOS_H_
34# define _XOS_H_
35
36# include <X11/Xosdefs.h>
37
38/*
39 * Get major data types (esp. caddr_t)
40 */
41
42# include <sys/types.h>
43
44# if defined(__SCO__) || defined(__UNIXWARE__)
45# include <stdint.h>
46# endif
47
48
49/*
50 * Just about everyone needs the strings routines. We provide both forms here,
51 * index/rindex and strchr/strrchr, so any systems that don't provide them all
52 * need to have #defines here.
53 *
54 * These macros are defined this way, rather than, e.g.:
55 * #defined index(s,c) strchr(s,c)
56 * because someone might be using them as function pointers, and such
57 * a change would break compatibility for anyone who's relying on them
58 * being the way they currently are. So we're stuck with them this way,
59 * which can be really inconvenient. :-(
60 */
61
62# include <string.h>
63# if defined(__SCO__) || defined(__UNIXWARE__) || defined(__sun) || defined(__CYGWIN__)
64# include <strings.h>
65# else
66# ifndef index
67# define index(s,c) (strchr((s),(c)))
68# endif
69# ifndef rindex
70# define rindex(s,c) (strrchr((s),(c)))
71# endif
72# endif
73
74/*
75 * Get open(2) constants
76 */
77# if defined(X_NOT_POSIX)
78# include <fcntl.h>
79# if defined(USL) || defined(__i386__) && (defined(SYSV) || defined(SVR4))
80# include <unistd.h>
81# endif
82# ifdef WIN32
83# include <X11/Xw32defs.h>
84# else
85# include <sys/file.h>
86# endif
87# else /* X_NOT_POSIX */
88# include <fcntl.h>
89# include <unistd.h>
90# endif /* X_NOT_POSIX else */
91
92/*
93 * Get struct timeval and struct tm
94 */
95
96# if defined(_POSIX_SOURCE) && defined(SVR4)
97/* need to omit _POSIX_SOURCE in order to get what we want in SVR4 */
98# undef _POSIX_SOURCE
99# include <sys/time.h>
100# define _POSIX_SOURCE
101# elif defined(WIN32)
102# include <time.h>
103# if !defined(_WINSOCKAPI_) && !defined(_WILLWINSOCK_) && !defined(_TIMEVAL_DEFINED) && !defined(_STRUCT_TIMEVAL)
104struct timeval {
105 long tv_sec; /* seconds */
106 long tv_usec; /* and microseconds */
107};
108# define _TIMEVAL_DEFINED
109# endif
110# include <sys/timeb.h>
111# define gettimeofday(t) \
112{ \
113 struct _timeb _gtodtmp; \
114 _ftime (&_gtodtmp); \
115 (t)->tv_sec = _gtodtmp.time; \
116 (t)->tv_usec = _gtodtmp.millitm * 1000; \
117}
118# else
119# include <sys/time.h>
120# include <time.h>
121# endif /* defined(_POSIX_SOURCE) && defined(SVR4) */
122
123/* define X_GETTIMEOFDAY macro, a portable gettimeofday() */
124# if defined(_XOPEN_XPG4) || defined(_XOPEN_UNIX) /* _XOPEN_UNIX is XPG4.2 */
125# define X_GETTIMEOFDAY(t) gettimeofday(t, (struct timezone*)0)
126# else
127# if defined(SVR4) || defined(__SVR4) || defined(WIN32)
128# define X_GETTIMEOFDAY(t) gettimeofday(t)
129# else
130# define X_GETTIMEOFDAY(t) gettimeofday(t, (struct timezone*)0)
131# endif
132# endif /* XPG4 else */
133
134
135# ifdef __GNU__
136# define PATH_MAX 4096
137# define MAXPATHLEN 4096
138# define OPEN_MAX 256 /* We define a reasonable limit. */
139# endif
140
141/* use POSIX name for signal */
142# if defined(X_NOT_POSIX) && defined(SYSV) && !defined(SIGCHLD)
143# define SIGCHLD SIGCLD
144# endif
145
146# include <X11/Xarch.h>
147
148#endif /* _XOS_H_ */
149