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Diffstat (limited to 'unix/tclUnixPort.h')
| -rw-r--r-- | unix/tclUnixPort.h | 742 |
1 files changed, 742 insertions, 0 deletions
diff --git a/unix/tclUnixPort.h b/unix/tclUnixPort.h new file mode 100644 index 0000000..f64d453 --- /dev/null +++ b/unix/tclUnixPort.h @@ -0,0 +1,742 @@ +/* + * 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. + */ + +#ifndef _TCLUNIXPORT +#define _TCLUNIXPORT + +/* + *--------------------------------------------------------------------------- + * 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 + +/* + *--------------------------------------------------------------------------- + * Parameterize for 64-bit filesystem support. + *--------------------------------------------------------------------------- + */ + +#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 __CYGWIN__ + + /* Make some symbols available without including <windows.h> */ +# define DWORD unsigned int +# define CP_UTF8 65001 +# define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS 0x00000004 +# define HANDLE void * +# define HINSTANCE void * +# define SOCKET unsigned int +# define WSAEWOULDBLOCK 10035 + typedef unsigned short WCHAR; + __declspec(dllimport) extern __stdcall int GetModuleHandleExW(unsigned int, const char *, void *); + __declspec(dllimport) extern __stdcall int GetModuleFileNameW(void *, const char *, int); + __declspec(dllimport) extern __stdcall int WideCharToMultiByte(int, int, const char *, int, + const char *, int, const char *, const char *); + __declspec(dllimport) extern __stdcall int MultiByteToWideChar(int, int, const char *, int, + WCHAR *, int); + __declspec(dllimport) extern __stdcall void OutputDebugStringW(const WCHAR *); + __declspec(dllimport) extern __stdcall int IsDebuggerPresent(); + __declspec(dllimport) extern __stdcall int GetLastError(); + __declspec(dllimport) extern __stdcall int GetFileAttributesW(const WCHAR *); + __declspec(dllimport) extern __stdcall int SetFileAttributesW(const WCHAR *, int); + + __declspec(dllimport) extern int cygwin_conv_path(int, const void *, void *, int); + __declspec(dllimport) extern int cygwin_conv_path_list(int, const void *, void *, int); +# define USE_PUTENV 1 +# define USE_PUTENV_FOR_UNSET 1 +/* On Cygwin, the environment is imported from the Cygwin DLL. */ +#ifndef __x86_64__ +# define environ __cygwin_environ + extern char **__cygwin_environ; +#endif +# define timezone _timezone + extern int TclOSstat(const char *name, void *statBuf); + extern int TclOSlstat(const char *name, void *statBuf); +#elif defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__) +# define TclOSstat stat64 +# define TclOSlstat lstat64 +#else +# define TclOSstat stat +# define TclOSlstat lstat +#endif + +/* + *--------------------------------------------------------------------------- + * Miscellaneous includes that might be missing. + *--------------------------------------------------------------------------- + */ + +#include <sys/file.h> +#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 + +extern 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> /* getaddrinfo() */ +#ifdef NEED_FAKE_RFC2553 +# include "../compat/fake-rfc2553.h" +#endif + +/* + *--------------------------------------------------------------------------- + * 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(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 */ + +#ifndef 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 + +/* + *--------------------------------------------------------------------------- + * 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 */ + +/* + *--------------------------------------------------------------------------- + * 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 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 +# include <pthread.h> +#endif /* TCL_THREADS */ + +/* FIXME - Hyper-enormous platform assumption! */ +#ifndef AF_INET6 +# define AF_INET6 10 +#endif + +/* + *--------------------------------------------------------------------------- + * 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 <pwd.h> +#include <grp.h> + +extern struct passwd * TclpGetPwNam(const char *name); +extern struct group * TclpGetGrNam(const char *name); +extern struct passwd * TclpGetPwUid(uid_t uid); +extern struct group * TclpGetGrGid(gid_t gid); +extern struct hostent * TclpGetHostByName(const char *name); +extern struct hostent * TclpGetHostByAddr(const char *addr, + int length, int type); +extern void *TclpMakeTcpClientChannelMode( + void *tcpSocket, int mode); + +#endif /* _TCLUNIXPORT */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |