/*
* tclUnixPort.h --
*
* This header file handles porting issues that occur because
* of differences between systems. It reads in UNIX-related
* header files and sets up UNIX-related macros for Tcl's UNIX
* core. It should be the only file that contains #ifdefs to
* handle different flavors of UNIX. This file sets up the
* union of all UNIX-related things needed by any of the Tcl
* core files. This file depends on configuration #defines such
* as NO_DIRENT_H that are set up by the "configure" script.
*
* Much of the material in this file was originally contributed
* by Karl Lehenbauer, Mark Diekhans and Peter da Silva.
*
* Copyright (c) 1991-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tclUnixPort.h,v 1.65.2.1 2010/05/25 10:37:18 nijtmans Exp $
*/
#ifndef _TCLUNIXPORT
#define _TCLUNIXPORT
#ifndef MODULE_SCOPE
#define MODULE_SCOPE extern
#endif
/*
*---------------------------------------------------------------------------
* The following sets of #includes and #ifdefs are required to get Tcl to
* compile under the various flavors of unix.
*---------------------------------------------------------------------------
*/
#include <errno.h>
#include <fcntl.h>
#ifdef HAVE_NET_ERRNO_H
# include <net/errno.h>
#endif
#include <pwd.h>
#include <signal.h>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#include <sys/types.h>
#ifdef USE_DIRENT2_H
# include "../compat/dirent2.h"
#else
#ifdef NO_DIRENT_H
# include "../compat/dirent.h"
#else
# include <dirent.h>
#endif
#endif
#ifdef HAVE_STRUCT_DIRENT64
typedef struct dirent64 Tcl_DirEntry;
# define TclOSreaddir readdir64
#else
typedef struct dirent Tcl_DirEntry;
# define TclOSreaddir readdir
#endif
#ifdef HAVE_TYPE_OFF64_T
typedef off64_t Tcl_SeekOffset;
# define TclOSseek lseek64
# define TclOSopen open64
#else
typedef off_t Tcl_SeekOffset;
# define TclOSseek lseek
# define TclOSopen open
#endif
#ifdef HAVE_STRUCT_STAT64
# define TclOSstat stat64
# define TclOSlstat lstat64
#else
# define TclOSstat stat
# define TclOSlstat lstat
#endif
#ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
#endif
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
#include <sys/stat.h>
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
#if HAVE_SYS_TIME_H
# include <sys/time.h>
#else
# include <time.h>
#endif
#endif
#ifndef NO_SYS_WAIT_H
# include <sys/wait.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef NO_LIMITS_H
# include "../compat/limits.h"
#else
# include <limits.h>
#endif
#if HAVE_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#else
# include "../compat/unistd.h"
#endif
MODULE_SCOPE int TclUnixSetBlockingMode(int fd, int mode);
#include <utime.h>
/*
* Socket support stuff: This likely needs more work to parameterize for
* each system.
*/
#include <sys/socket.h> /* struct sockaddr, SOCK_STREAM, ... */
#ifndef NO_UNAME
# include <sys/utsname.h> /* uname system call. */
#endif
#include <netinet/in.h> /* struct in_addr, struct sockaddr_in */
#include <arpa/inet.h> /* inet_ntoa() */
#include <netdb.h> /* gethostbyname() */
/*
* Some platforms (e.g. SunOS) don't define FLT_MAX and FLT_MIN, so we
* look for an alternative definition. If no other alternative is available
* we use a reasonable guess.
*/
#ifndef NO_FLOAT_H
# include <float.h>
#else
#ifndef NO_VALUES_H
# include <values.h>
#endif
#endif
#ifndef FLT_MAX
# ifdef MAXFLOAT
# define FLT_MAX MAXFLOAT
# else
# define FLT_MAX 3.402823466E+38F
# endif
#endif
#ifndef FLT_MIN
# ifdef MINFLOAT
# define FLT_MIN MINFLOAT
# else
# define FLT_MIN 1.175494351E-38F
# endif
#endif
/*
* NeXT doesn't define O_NONBLOCK, so #define it here if necessary.
*/
#ifndef O_NONBLOCK
# define O_NONBLOCK 0x80
#endif
/*
* The type of the status returned by wait varies from UNIX system
* to UNIX system. The macro below defines it:
*/
#ifdef _AIX
# define WAIT_STATUS_TYPE pid_t
#else
#ifndef NO_UNION_WAIT
# define WAIT_STATUS_TYPE union wait
#else
# define WAIT_STATUS_TYPE int
#endif
#endif
/*
* Supply definitions for macros to query wait status, if not already
* defined in header files above.
*/
#ifndef WIFEXITED
# define WIFEXITED(stat) (((*((int *) &(stat))) & 0xff) == 0)
#endif
#ifndef WEXITSTATUS
# define WEXITSTATUS(stat) (((*((int *) &(stat))) >> 8) & 0xff)
#endif
#ifndef WIFSIGNALED
# define WIFSIGNALED(stat) (((*((int *) &(stat)))) && ((*((int *) &(stat))) == ((*((int *) &(stat))) & 0x00ff)))
#endif
#ifndef WTERMSIG
# define WTERMSIG(stat) ((*((int *) &(stat))) & 0x7f)
#endif
#ifndef WIFSTOPPED
# define WIFSTOPPED(stat) (((*((int *) &(stat))) & 0xff) == 0177)
#endif
#ifndef WSTOPSIG
# define WSTOPSIG(stat) (((*((int *) &(stat))) >> 8) & 0xff)
#endif
/*
* Define constants for waitpid() system call if they aren't defined
* by a system header file.
*/
#ifndef WNOHANG
# define WNOHANG 1
#endif
#ifndef WUNTRACED
# define WUNTRACED 2
#endif
/*
* Supply macros for seek offsets, if they're not already provided by
* an include file.
*/
#ifndef SEEK_SET
# define SEEK_SET 0
#endif
#ifndef SEEK_CUR
# define SEEK_CUR 1
#endif
#ifndef SEEK_END
# define SEEK_END 2
#endif
/*
* The stuff below is needed by the "time" command. If this system has no
* gettimeofday call, then must use times() instead.
*/
#ifdef NO_GETTOD
# include <sys/times.h>
#else
# ifdef HAVE_BSDGETTIMEOFDAY
# define gettimeofday BSDgettimeofday
# endif
#endif
#ifdef GETTOD_NOT_DECLARED
EXTERN int gettimeofday _ANSI_ARGS_((struct timeval *tp,
struct timezone *tzp));
#endif
/*
* Define access mode constants if they aren't already defined.
*/
#ifndef F_OK
# define F_OK 00
#endif
#ifndef X_OK
# define X_OK 01
#endif
#ifndef W_OK
# define W_OK 02
#endif
#ifndef R_OK
# define R_OK 04
#endif
/*
* Define FD_CLOEEXEC (the close-on-exec flag bit) if it isn't
* already defined.
*/
#ifndef FD_CLOEXEC
# define FD_CLOEXEC 1
#endif
/*
* On systems without symbolic links (i.e. S_IFLNK isn't defined)
* define "lstat" to use "stat" instead.
*/
#ifndef S_IFLNK
# undef TclOSlstat
# define lstat stat
# define lstat64 stat64
# define TclOSlstat TclOSstat
#endif
/*
* Define macros to query file type bits, if they're not already
* defined.
*/
#ifndef S_ISREG
# ifdef S_IFREG
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
# else
# define S_ISREG(m) 0
# endif
#endif /* !S_ISREG */
#ifndef S_ISDIR
# ifdef S_IFDIR
# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
# else
# define S_ISDIR(m) 0
# endif
#endif /* !S_ISDIR */
#ifndef S_ISCHR
# ifdef S_IFCHR
# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
# else
# define S_ISCHR(m) 0
# endif
#endif /* !S_ISCHR */
#ifndef S_ISBLK
# ifdef S_IFBLK
# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
# else
# define S_ISBLK(m) 0
# endif
#endif /* !S_ISBLK */
#ifndef S_ISFIFO
# ifdef S_IFIFO
# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
# else
# define S_ISFIFO(m) 0
# endif
#endif /* !S_ISFIFO */
#ifndef S_ISLNK
# ifdef S_IFLNK
# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
# else
# define S_ISLNK(m) 0
# endif
#endif /* !S_ISLNK */
#ifndef S_ISSOCK
# ifdef S_IFSOCK
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
# else
# define S_ISSOCK(m) 0
# endif
#endif /* !S_ISSOCK */
/*
* Make sure that MAXPATHLEN and MAXNAMLEN are defined.
*/
#ifndef MAXPATHLEN
# ifdef PATH_MAX
# define MAXPATHLEN PATH_MAX
# else
# define MAXPATHLEN 2048
# endif
#endif
#ifndef MAXNAMLEN
# ifdef NAME_MAX
# define MAXNAMLEN NAME_MAX
# else
# define MAXNAMLEN 255
# endif
#endif
/*
* Make sure that L_tmpnam is defined.
*/
#ifndef L_tmpnam
# define L_tmpnam 100
#endif
/*
* The following macro defines the type of the mask arguments to
* select:
*/
#ifndef NO_FD_SET
# define SELECT_MASK fd_set
#else /* NO_FD_SET */
# ifndef _AIX
typedef long fd_mask;
# endif /* !AIX */
# if defined(_IBMR2)
# define SELECT_MASK void
# else /* !defined(_IBMR2) */
# define SELECT_MASK int
# endif /* defined(_IBMR2) */
#endif /* !NO_FD_SET */
/*
* Define "NBBY" (number of bits per byte) if it's not already defined.
*/
#ifndef NBBY
# define NBBY 8
#endif
/*
* The following macro defines the number of fd_masks in an fd_set:
*/
#ifndef FD_SETSIZE
# ifdef OPEN_MAX
# define FD_SETSIZE OPEN_MAX
# else
# define FD_SETSIZE 256
# endif
#endif /* FD_SETSIZE */
#if !defined(howmany)
# define howmany(x, y) (((x)+((y)-1))/(y))
#endif /* !defined(howmany) */
#ifndef NFDBITS
# define NFDBITS NBBY*sizeof(fd_mask)
#endif /* NFDBITS */
#define MASK_SIZE howmany(FD_SETSIZE, NFDBITS)
/*
* Not all systems declare the errno variable in errno.h. so this
* file does it explicitly. The list of system error messages also
* isn't generally declared in a header file anywhere.
*/
#ifdef NO_ERRNO
extern int errno;
#endif /* NO_ERRNO */
/*
* Not all systems declare all the errors that Tcl uses! Provide some
* work-arounds...
*/
#ifndef EOVERFLOW
# ifdef EFBIG
# define EOVERFLOW EFBIG
# else /* !EFBIG */
# define EOVERFLOW EINVAL
# endif /* EFBIG */
#endif /* EOVERFLOW */
/*
* Variables provided by the C library:
*/
#if defined(__APPLE__) && defined(__DYNAMIC__)
# include <crt_externs.h>
# define environ (*_NSGetEnviron())
# define USE_PUTENV 1
#else
# if defined(_sgi) || defined(__sgi)
# define environ _environ
# endif
extern char **environ;
#endif
/*
* There is no platform-specific panic routine for Unix in the Tcl internals.
*/
#define TclpPanic ((Tcl_PanicProc *) NULL)
/*
* Darwin specifc configure overrides.
*/
#ifdef __APPLE__
/*
* Support for fat compiles: configure runs only once for multiple architectures
*/
# if defined(__LP64__) && defined (NO_COREFOUNDATION_64)
# undef HAVE_COREFOUNDATION
# endif /* __LP64__ && NO_COREFOUNDATION_64 */
# include <sys/cdefs.h>
# ifdef __DARWIN_UNIX03
# if __DARWIN_UNIX03
# undef HAVE_PUTENV_THAT_COPIES
# else
# define HAVE_PUTENV_THAT_COPIES 1
# endif
# endif /* __DARWIN_UNIX03 */
/*
* The termios configure test program relies on the configure script being run
* from a terminal, which is not the case e.g. when configuring from Xcode.
* Since termios is known to be present on all Mac OS X releases since 10.0,
* override the configure defines for serial API here. [Bug 497147]
*/
# define USE_TERMIOS 1
# undef USE_TERMIO
# undef USE_SGTTY
/*
* Include AvailabilityMacros.h here (when available) to ensure any symbolic
* MAC_OS_X_VERSION_* constants passed on the command line are translated.
*/
# ifdef HAVE_AVAILABILITYMACROS_H
# include <AvailabilityMacros.h>
# endif
/*
* Support for weak import.
*/
# ifdef HAVE_WEAK_IMPORT
# if !defined(HAVE_AVAILABILITYMACROS_H) || !defined(MAC_OS_X_VERSION_MIN_REQUIRED)
# undef HAVE_WEAK_IMPORT
# else
# ifndef WEAK_IMPORT_ATTRIBUTE
# define WEAK_IMPORT_ATTRIBUTE __attribute__((weak_import))
# endif
# endif
# endif /* HAVE_WEAK_IMPORT */
/*
* Support for MAC_OS_X_VERSION_MAX_ALLOWED define from AvailabilityMacros.h:
* only use API available in the indicated OS version or earlier.
*/
# ifdef MAC_OS_X_VERSION_MAX_ALLOWED
# if MAC_OS_X_VERSION_MAX_ALLOWED < 1050 && defined(__LP64__)
# undef HAVE_COREFOUNDATION
# endif
# if MAC_OS_X_VERSION_MAX_ALLOWED < 1040
# undef HAVE_OSSPINLOCKLOCK
# undef HAVE_PTHREAD_ATFORK
# undef HAVE_COPYFILE
# endif
# if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
# ifdef TCL_THREADS
/* prior to 10.3, realpath is not threadsafe, c.f. bug 711232 */
# define NO_REALPATH 1
# endif
# undef HAVE_LANGINFO
# endif
# endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
# if defined(HAVE_COREFOUNDATION) && defined(__LP64__) && \
defined(HAVE_WEAK_IMPORT) && MAC_OS_X_VERSION_MIN_REQUIRED < 1050
# warning "Weak import of 64-bit CoreFoundation is not supported, will not run on Mac OS X < 10.5."
# endif
/*
* At present, using vfork() instead of fork() causes execve() to fail
* intermittently on Darwin x86_64. rdar://4685553
*/
# if defined(__x86_64__) && !defined(FIXED_RDAR_4685553)
# undef USE_VFORK
# endif /* __x86_64__ */
/* Workaround problems with vfork() when building with llvm-gcc-4.2 */
# if defined (__llvm__) && \
(__GNUC__ > 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ > 2 || \
(__GNUC_MINOR__ == 2 && __GNUC_PATCHLEVEL__ > 0))))
# undef USE_VFORK
# endif /* __llvm__ */
#endif /* __APPLE__ */
/*
*---------------------------------------------------------------------------
* The following macros and declarations represent the interface between
* generic and unix-specific parts of Tcl. Some of the macros may override
* functions declared in tclInt.h.
*---------------------------------------------------------------------------
*/
/*
* The default platform eol translation on Unix is TCL_TRANSLATE_LF.
*/
#ifdef DJGPP
#define TCL_PLATFORM_TRANSLATION TCL_TRANSLATE_CRLF
typedef int socklen_t;
#else
#define TCL_PLATFORM_TRANSLATION TCL_TRANSLATE_LF
#endif
/*
* The following macros have trivial definitions, allowing generic code to
* address platform-specific issues.
*/
#define TclpGetPid(pid) ((unsigned long) (pid))
#define TclpReleaseFile(file) /* Nothing. */
/*
* The following defines wrap the system memory allocation routines.
*/
#define TclpSysAlloc(size, isBin) malloc((size_t)size)
#define TclpSysFree(ptr) free((char*)ptr)
#define TclpSysRealloc(ptr, size) realloc((char*)ptr, (size_t)size)
/*
* The following macros and declaration wrap the C runtime library
* functions.
*/
#define TclpExit exit
#ifdef TCL_THREADS
EXTERN struct tm * TclpLocaltime(CONST time_t *);
EXTERN struct tm * TclpGmtime(CONST time_t *);
EXTERN char * TclpInetNtoa(struct in_addr);
/* #define localtime(x) TclpLocaltime(x)
* #define gmtime(x) TclpGmtime(x) */
# undef inet_ntoa
# define inet_ntoa(x) TclpInetNtoa(x)
# ifdef HAVE_PTHREAD_ATTR_GET_NP
# define TclpPthreadGetAttrs pthread_attr_get_np
# ifdef ATTRGETNP_NOT_DECLARED
/*
* Assume it is in pthread_np.h if it isn't in pthread.h. [Bug 1064882]
* We might need to revisit this in the future. :^(
*/
# include <pthread.h>
# include <pthread_np.h>
# endif
# else
# ifdef HAVE_PTHREAD_GETATTR_NP
# define TclpPthreadGetAttrs pthread_getattr_np
# ifdef GETATTRNP_NOT_DECLARED
EXTERN int pthread_getattr_np _ANSI_ARGS_((pthread_t, pthread_attr_t *));
# endif
# endif /* HAVE_PTHREAD_GETATTR_NP */
# endif /* HAVE_PTHREAD_ATTR_GET_NP */
#endif /* TCL_THREADS */
/*
* Set of MT-safe implementations of some
* known-to-be-MT-unsafe library calls.
* Instead of returning pointers to the
* static storage, those return pointers
* to the TSD data.
*/
#include <grp.h>
MODULE_SCOPE struct passwd* TclpGetPwNam(const char *name);
MODULE_SCOPE struct group* TclpGetGrNam(const char *name);
MODULE_SCOPE struct passwd* TclpGetPwUid(uid_t uid);
MODULE_SCOPE struct group* TclpGetGrGid(gid_t gid);
MODULE_SCOPE struct hostent* TclpGetHostByName(const char *name);
MODULE_SCOPE struct hostent* TclpGetHostByAddr(const char *addr, int length, int type);
#endif /* _TCLUNIXPORT */
|
