1 /* 2 * 3 Copyright 1987, 1998 The Open Group 4 5 Permission to use, copy, modify, distribute, and sell this software and its 6 documentation for any purpose is hereby granted without fee, provided that 7 the above copyright notice appear in all copies and that both that 8 copyright notice and this permission notice appear in supporting 9 documentation. 10 11 The above copyright notice and this permission notice shall be included in 12 all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 21 Except as contained in this notice, the name of The Open Group shall not be 22 used in advertising or otherwise to promote the sale, use or other dealings 23 in 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) 104 struct 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