[p5sagit/p5-mst-13.2.git] / vms / vmsish.h

/*  vmsish.h
 *
 * VMS-specific C header file for perl5.
 *
 * Last revised: 01-Oct-1995 by Charles Bailey  bailey@genetics.upenn.edu
 * Version: 5.1.6
 */

#ifndef __vmsish_h_included
#define __vmsish_h_included

#include <descrip.h> /* for dirent struct definitions */
#include <libdef.h>  /* status codes for various places */
#include <rmsdef.h>  /* at which errno and vaxc$errno are */
#include <ssdef.h>   /* explicitly set in the perl source code */

/* Suppress compiler warnings from DECC for VMS-specific extensions:
 * GLOBALEXT, NOSHAREEXT: global[dr]ef declarations
 * ADDRCONSTEXT: initialization of data with non-constant values
 *               (e.g. pointer fields of descriptors)
 */
#ifdef __DECC
#  pragma message disable (GLOBALEXT,NOSHAREEXT,ADDRCONSTEXT)
#endif

/* Suppress compiler warnings from DECC for VMS-specific extensions:
 * GLOBALEXT, NOSHAREEXT: global[dr]ef declarations
 * ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
 *                            (e.g. pointer fields of descriptors)
 */
#ifdef __DECC
#  pragma message disable (GLOBALEXT,NOSHAREEXT,ADDRCONSTEXT,NEEDCONSTEXT)
#endif

/* DEC's C compilers and gcc use incompatible definitions of _to(upp|low)er() */
#ifdef _toupper
#  undef _toupper
#endif
#define _toupper(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) & ~040)
#ifdef _tolower
#  undef _tolower
#endif
#define _tolower(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) | 040)
/* DECC 1.3 has a funny definition of abs; it's fixed in DECC 4.0, so this
 * can go away once DECC 1.3 isn't in use any more. */
#if defined(__ALPHA) && defined(__DECC)
#undef abs
#define abs(__x)        __ABS(__x)
#undef labs
#define labs(__x)        __LABS(__x)
#endif /* __ALPHA && __DECC */

/* Assorted things to look like Unix */
#ifdef __GNUC__
#ifndef _IOLBF /* gcc's stdio.h doesn't define this */
#define _IOLBF 1
#endif
#endif
#include <processes.h> /* for vfork() */
#include <unixio.h>
#include <unixlib.h>
#include <file.h>  /* it's not <sys/file.h>, so don't use I_SYS_FILE */

/* Our own contribution to PerlShr's global symbols . . . */
#ifdef EMBED
#  define my_trnlnm		Perl_my_trnlnm
#  define my_getenv		Perl_my_getenv
#  define my_crypt		Perl_my_crypt
#  define waitpid		Perl_waitpid
#  define my_gconvert		Perl_my_gconvert
#  define do_rmdir		Perl_do_rmdir
#  define kill_file		Perl_kill_file
#  define my_utime		Perl_my_utime
#  define fileify_dirspec	Perl_fileify_dirspec
#  define fileify_dirspec_ts	Perl_fileify_dirspec_ts
#  define pathify_dirspec	Perl_pathify_dirspec
#  define pathify_dirspec_ts	Perl_pathify_dirspec_ts
#  define tounixspec		Perl_tounixspec
#  define tounixspec_ts		Perl_tounixspec_ts
#  define tovmsspec		Perl_tovmsspec
#  define tovmsspec_ts		Perl_tovmsspec_ts
#  define tounixpath		Perl_tounixpath
#  define tounixpath_ts		Perl_tounixpath_ts
#  define tovmspath		Perl_tovmspath
#  define tovmspath_ts		Perl_tovmspath_ts
#  define getredirection	Perl_getredirection
#  define opendir		Perl_opendir
#  define readdir		Perl_readdir
#  define telldir		Perl_telldir
#  define seekdir		Perl_seekdir
#  define closedir		Perl_closedir
#  define vmsreaddirversions	Perl_vmsreaddirversions
#  define getredirection	Perl_getredirection
#  define my_gmtime		Perl_my_gmtime
#  define cando_by_name		Perl_cando_by_name
#  define flex_fstat		Perl_flex_fstat
#  define flex_stat		Perl_flex_stat
#  define trim_unixpath		Perl_trim_unixpath
#  define vms_do_aexec		Perl_vms_do_aexec
#  define vms_do_exec		Perl_vms_do_exec
#  define do_aspawn		Perl_do_aspawn
#  define do_spawn		Perl_do_spawn
#  define my_fwrite		Perl_my_fwrite
#  define my_getpwnam		Perl_my_getpwnam
#  define my_getpwuid		Perl_my_getpwuid
#  define my_getpwent		Perl_my_getpwent
#  define my_endpwent		Perl_my_endpwent
#  define my_getlogin		Perl_my_getlogin
#  define rmscopy		Perl_rmscopy
#  define init_os_extras	Perl_init_os_extras
#endif

/* Delete if at all possible, changing protections if necessary. */
#define unlink kill_file

/*  The VMS C RTL has vfork() but not fork().  Both actually work in a way
 *  that's somewhere between Unix vfork() and VMS lib$spawn(), so it's
 *  probably not a good idea to use them much.  That said, we'll try to
 *  use vfork() in either case.
 */
#define fork vfork

/* Macros to set errno using the VAX thread-safe calls, if present */
#if (defined(__DECC) || defined(__DECCXX)) && !defined(__ALPHA)
#  define set_errno(v)      (cma$tis_errno_set_value(v))
#  define set_vaxc_errno(v) (vaxc$errno = (v))
#else
#  define set_errno(v)      (errno = (v))
#  define set_vaxc_errno(v) (vaxc$errno = (v))
#endif

/* Handy way to vet calls to VMS system services and RTL routines. */
#define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
  if (!((__ckvms_sts=(call))&1)) { \
  set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
  croak("Fatal VMS error (status=%d) at %s, line %d", \
  __ckvms_sts,__FILE__,__LINE__); } } STMT_END

#ifdef VMS_DO_SOCKETS
#include "sockadapt.h"
#endif

#define BIT_BUCKET "_NLA0:"
#define PERL_SYS_INIT(c,v)  getredirection((c),(v))
#define PERL_SYS_TERM()
#define dXSUB_SYS int dummy
#define HAS_KILL
#define HAS_WAIT

/* VMS:
 *	This symbol, if defined, indicates that the program is running under
 *	VMS.  It's a symbol automagically defined by all VMS C compilers I've seen.
 * Just in case, however . . . */
#ifndef VMS
#define VMS		/**/
#endif

/* HAS_IOCTL:
 *	This symbol, if defined, indicates that the ioctl() routine is
 *	available to set I/O characteristics
 */
#undef	HAS_IOCTL		/**/
 
/* HAS_UTIME:
 *	This symbol, if defined, indicates that the routine utime() is
 *	available to update the access and modification times of files.
 */
#define HAS_UTIME		/**/

/* HAS_GROUP
 *	This symbol, if defined, indicates that the getgrnam(),
 *	getgrgid(), and getgrent() routines are available to 
 *	get group entries.
 */
#undef HAS_GROUP		/**/

/* HAS_PASSWD
 *	This symbol, if defined, indicates that the getpwnam(),
 *	getpwuid(), and getpwent() routines are available to 
 *	get password entries.
 */
#define HAS_PASSWD		/**/

#define HAS_KILL
#define HAS_WAIT
  
/*
 * fwrite1() should be a routine with the same calling sequence as fwrite(),
 * but which outputs all of the bytes requested as a single stream (unlike
 * fwrite() itself, which on some systems outputs several distinct records
 * if the number_of_items parameter is >1).
 */
#define fwrite1 my_fwrite

/* Use our own rmdir() */
#define rmdir(name) do_rmdir(name)

/* Assorted fiddling with sigs . . . */
# include <signal.h>
#define ABORT() abort()

/* Used with our my_utime() routine in vms.c */
struct utimbuf {
  time_t actime;
  time_t modtime;
};
#define utime my_utime

/* This is what times() returns, but <times.h> calls it tbuffer_t on VMS */

struct tms {
  clock_t tms_utime;    /* user time */
  clock_t tms_stime;    /* system time - always 0 on VMS */
  clock_t tms_cutime;   /* user time, children */
  clock_t tms_cstime;   /* system time, children - always 0 on VMS */
};

/* Prior to VMS 7.0, the CRTL gmtime() routine was a stub which always
 * returned NULL.  Substitute our own routine, which uses the logical
 * SYS$TIMEZONE_DIFFERENTIAL, whcih the native UTC support routines
 * in VMS 6.0 or later use.*
 */
#define gmtime(t) my_gmtime(t)

/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
 * messages in text strings . . .
 */

#define sys_nerr EVMSERR  /* EVMSERR is as high as we can go. */

/* Look up new %ENV values on the fly */
#define DYNAMIC_ENV_FETCH 1
#define ENV_HV_NAME "%EnV%VmS%"

/* Thin jacket around cuserid() tomatch Unix' calling sequence */
#define getlogin my_getlogin

/* Ditto for sys$hash_passwrod() . . . */
#define crypt  my_crypt

/* Use our own stat() clones, which handle Unix-style directory names */
#define Stat(name,bufptr) flex_stat(name,bufptr)
#define Fstat(fd,bufptr) flex_fstat(fd,bufptr)

/* By default, flush data all the way to disk, not just to RMS buffers */
#define Fflush(fp) ((fflush(fp) || fsync(fileno(fp))) ? EOF : 0)

/* Setup for the dirent routines:
 * opendir(), closedir(), readdir(), seekdir(), telldir(), and
 * vmsreaddirversions(), and preprocessor stuff on which these depend:
 *    Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
 *    This code has no copyright.
 */
    /* Data structure returned by READDIR(). */
struct dirent {
    char	d_name[256];		/* File name		*/
    int		d_namlen;			/* Length of d_name */
    int		vms_verscount;		/* Number of versions	*/
    int		vms_versions[20];	/* Version numbers	*/
};

    /* Handle returned by opendir(), used by the other routines.  You
     * are not supposed to care what's inside this structure. */
typedef struct _dirdesc {
    long			context;
    int				vms_wantversions;
    unsigned long int           count;
    char			*pattern;
    struct dirent		entry;
    struct dsc$descriptor_s	pat;
} DIR;

#define rewinddir(dirp)		seekdir((dirp), 0)

/* used for our emulation of getpw* */
struct passwd {
        char    *pw_name;    /* Username */
        char    *pw_passwd;
        Uid_t   pw_uid;      /* UIC member number */
        Gid_t   pw_gid;      /* UIC group  number */
        char    *pw_comment; /* Default device/directory (Unix-style) */
        char    *pw_gecos;   /* Owner */
        char    *pw_dir;     /* Default device/directory (VMS-style) */
        char    *pw_shell;   /* Default CLI name (eg. DCL) */
};
#define pw_unixdir pw_comment  /* Default device/directory (Unix-style) */
#define getpwnam my_getpwnam
#define getpwuid my_getpwuid
#define getpwent my_getpwent
#define endpwent my_endpwent
#define setpwent my_endpwent

/* Our own stat_t substitute, since we play with st_dev and st_ino -
 * we want atomic types so Unix-bound code which compares these fields
 * for two files will work most of the time under VMS.
 * N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
 * sizeof(unsigned) + sizeof(unsigned short).  We can't use a union type
 * to map the unsigned int we want and the unsigned short[3] the CRTL
 * returns into the same member, since gcc has different ideas than DECC
 * and VAXC about sizing union types.
 * N.B 2. The routine cando() in vms.c assumes that &stat.st_ino is the
 * address of a FID.
 */
/* First, grab the system types, so we don't clobber them later */
#include <stat.h>
/* Since we've got to match the size of the CRTL's stat_t, we need
 * to mimic DECC's alignment settings.
 */
#if defined(__DECC) || defined(__DECCXX)
#  pragma __member_alignment __save
#  pragma __nomember_alignment
#endif
#if defined(__DECC) 
#  pragma __message __save
#  pragma __message disable (__MISALGNDSTRCT)
#  pragma __message disable (__MISALGNDMEM)
#endif
struct mystat
{
        char *st_devnam;  /* pointer to device name */
        unsigned st_ino;    /* hack - CRTL uses unsigned short[3] for */
        unsigned short rvn; /* FID (num,seq,rvn) */
        unsigned short st_mode;	/* file "mode" i.e. prot, dir, reg, etc. */
        int	st_nlink;	/* for compatibility - not really used */
        unsigned st_uid;	/* from ACP - QIO uic field */
        unsigned short st_gid;	/* group number extracted from st_uid */
        dev_t   st_rdev;	/* for compatibility - always zero */
        off_t   st_size;	/* file size in bytes */
        unsigned st_atime;	/* file access time; always same as st_mtime */
        unsigned st_mtime;	/* last modification time */
        unsigned st_ctime;	/* file creation time */
        char	st_fab_rfm;	/* record format */
        char	st_fab_rat;	/* record attributes */
        char	st_fab_fsz;	/* fixed header size */
        unsigned st_dev;	/* encoded device name */
};
#define stat mystat
typedef unsigned mydev_t;
#define dev_t mydev_t
typedef unsigned myino_t;
#define ino_t myino_t
#if defined(__DECC) || defined(__DECCXX)
#  pragma __member_alignment __restore
#endif
#if defined(__DECC) 
#  pragma __message __restore
#endif
/* Cons up a 'delete' bit for testing access */
#define S_IDUSR (S_IWUSR | S_IXUSR)
#define S_IDGRP (S_IWGRP | S_IXGRP)
#define S_IDOTH (S_IWOTH | S_IXOTH)

/* Prototypes for functions unique to vms.c.  Don't include replacements
 * for routines in the mainline source files excluded by #ifndef VMS;
 * their prototypes are already in proto.h.
 *
 * In order to keep Gen_ShrFls.Pl happy, functions which are to be made
 * available to images linked to PerlShr.Exe must be declared between the
 * __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
 *    <data type><TAB>name<WHITESPACE>_((<prototype args>));
 */
/* prototype section start marker; `typedef' passes through cpp */
typedef char  __VMS_PROTOTYPES__;
int	my_trnlnm _((char *, char *, unsigned long int));
char *	my_getenv _((char *));
char *	my_crypt _((const char *, const char *));
unsigned long int	waitpid _((unsigned long int, int *, int));
char *	my_gconvert _((double, int, int, char *));
int	do_rmdir _((char *));
int	kill_file _((char *));
int	my_utime _((char *, struct utimbuf *));
char *	fileify_dirspec _((char *, char *));
char *	fileify_dirspec_ts _((char *, char *));
char *	pathify_dirspec _((char *, char *));
char *	pathify_dirspec_ts _((char *, char *));
char *	tounixspec _((char *, char *));
char *	tounixspec_ts _((char *, char *));
char *	tovmsspec _((char *, char *));
char *	tovmsspec_ts _((char *, char *));
char *	tounixpath _((char *, char *));
char *	tounixpath_ts _((char *, char *));
char *	tovmspath _((char *, char *));
char *	tovmspath_ts _((char *, char *));
void	getredirection _(());
DIR *	opendir _((char *));
struct dirent *	readdir _((DIR *));
long	telldir _((DIR *));
void	seekdir _((DIR *, long));
void	closedir _((DIR *));
void	vmsreaddirversions _((DIR *, int));
void	getredirection _((int *, char ***));
struct tm *my_gmtime _((const time_t *));
I32	cando_by_name _((I32, I32, char *));
int	flex_fstat _((int, struct stat *));
int	flex_stat _((char *, struct stat *));
int	trim_unixpath _((char *, char*));
bool	vms_do_aexec _((SV *, SV **, SV **));
bool	vms_do_exec _((char *));
unsigned long int	do_aspawn _((SV *, SV **, SV **));
unsigned long int	do_spawn _((char *));
int	my_fwrite _((void *, size_t, size_t, FILE *));
struct passwd *	my_getpwnam _((char *name));
struct passwd *	my_getpwuid _((Uid_t uid));
struct passwd *	my_getpwent _(());
void	my_endpwent _(());
char *	my_getlogin _(());
int	rmscopy _((char *, char *, int));
void	init_os_extras _(());
typedef char __VMS_SEPYTOTORP__;
/* prototype section end marker; `typedef' passes through cpp */

#ifndef VMS_DO_SOCKETS
/* This relies on tricks in perl.h to pick up that these manifest constants
 * are undefined and set up conversion routines.  It will then redefine
 * these manifest constants, so the actual values will match config.h
 */
#undef HAS_HTONS
#undef HAS_NTOHS
#undef HAS_HTONL
#undef HAS_NTOHL
#endif

#define TMPPATH "sys$scratch:perl-eXXXXXX"

#endif  /* __vmsish_h_included */
Commit	Line	Data
a0d0e21e	1	/* vmsish.h
	2	*
	3	* VMS-specific C header file for perl5.
	4	*
e518068a	5	* Last revised: 01-Oct-1995 by Charles Bailey bailey@genetics.upenn.edu
c07a80fd	6	* Version: 5.1.6
a0d0e21e	7	*/
	8
	9	#ifndef __vmsish_h_included
	10	#define __vmsish_h_included
	11
	12	#include <descrip.h> /* for dirent struct definitions */
748a9306	13	#include <libdef.h> /* status codes for various places */
	14	#include <rmsdef.h> /* at which errno and vaxc$errno are */
	15	#include <ssdef.h> /* explicitly set in the perl source code */
	16
4633a7c4	17	/* Suppress compiler warnings from DECC for VMS-specific extensions:
	18	* GLOBALEXT, NOSHAREEXT: global[dr]ef declarations
	19	* ADDRCONSTEXT: initialization of data with non-constant values
	20	* (e.g. pointer fields of descriptors)
	21	*/
	22	#ifdef __DECC
	23	# pragma message disable (GLOBALEXT,NOSHAREEXT,ADDRCONSTEXT)
	24	#endif
	25
e518068a	26	/* Suppress compiler warnings from DECC for VMS-specific extensions:
	27	* GLOBALEXT, NOSHAREEXT: global[dr]ef declarations
	28	* ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
	29	* (e.g. pointer fields of descriptors)
	30	*/
	31	#ifdef __DECC
	32	# pragma message disable (GLOBALEXT,NOSHAREEXT,ADDRCONSTEXT,NEEDCONSTEXT)
	33	#endif
	34
748a9306	35	/* DEC's C compilers and gcc use incompatible definitions of _to(upp\|low)er() */
	36	#ifdef _toupper
	37	# undef _toupper
	38	#endif
	39	#define _toupper(c) (((c) < 'a' \|\| (c) > 'z') ? (c) : (c) & ~040)
	40	#ifdef _tolower
	41	# undef _tolower
	42	#endif
	43	#define _tolower(c) (((c) < 'A' \|\| (c) > 'Z') ? (c) : (c) \| 040)
4633a7c4	44	/* DECC 1.3 has a funny definition of abs; it's fixed in DECC 4.0, so this
	45	* can go away once DECC 1.3 isn't in use any more. */
	46	#if defined(__ALPHA) && defined(__DECC)
	47	#undef abs
	48	#define abs(__x) __ABS(__x)
	49	#undef labs
	50	#define labs(__x) __LABS(__x)
	51	#endif /* __ALPHA && __DECC */
a0d0e21e	52
	53	/* Assorted things to look like Unix */
	54	#ifdef __GNUC__
	55	#ifndef _IOLBF /* gcc's stdio.h doesn't define this */
	56	#define _IOLBF 1
	57	#endif
748a9306	58	#endif
a0d0e21e	59	#include <processes.h> /* for vfork() */
a0d0e21e	60	#include <unixio.h>
a0d0e21e	61	#include <unixlib.h>
a0d0e21e	62	#include <file.h> /* it's not <sys/file.h>, so don't use I_SYS_FILE */
bf109933	63
	64	/* Our own contribution to PerlShr's global symbols . . . */
	65	#ifdef EMBED
	66	# define my_trnlnm Perl_my_trnlnm
	67	# define my_getenv Perl_my_getenv
	68	# define my_crypt Perl_my_crypt
	69	# define waitpid Perl_waitpid
	70	# define my_gconvert Perl_my_gconvert
	71	# define do_rmdir Perl_do_rmdir
	72	# define kill_file Perl_kill_file
	73	# define my_utime Perl_my_utime
	74	# define fileify_dirspec Perl_fileify_dirspec
	75	# define fileify_dirspec_ts Perl_fileify_dirspec_ts
	76	# define pathify_dirspec Perl_pathify_dirspec
	77	# define pathify_dirspec_ts Perl_pathify_dirspec_ts
	78	# define tounixspec Perl_tounixspec
	79	# define tounixspec_ts Perl_tounixspec_ts
	80	# define tovmsspec Perl_tovmsspec
	81	# define tovmsspec_ts Perl_tovmsspec_ts
	82	# define tounixpath Perl_tounixpath
	83	# define tounixpath_ts Perl_tounixpath_ts
	84	# define tovmspath Perl_tovmspath
	85	# define tovmspath_ts Perl_tovmspath_ts
	86	# define getredirection Perl_getredirection
	87	# define opendir Perl_opendir
	88	# define readdir Perl_readdir
	89	# define telldir Perl_telldir
	90	# define seekdir Perl_seekdir
	91	# define closedir Perl_closedir
	92	# define vmsreaddirversions Perl_vmsreaddirversions
	93	# define getredirection Perl_getredirection
	94	# define my_gmtime Perl_my_gmtime
	95	# define cando_by_name Perl_cando_by_name
	96	# define flex_fstat Perl_flex_fstat
	97	# define flex_stat Perl_flex_stat
	98	# define trim_unixpath Perl_trim_unixpath
	99	# define vms_do_aexec Perl_vms_do_aexec
	100	# define vms_do_exec Perl_vms_do_exec
	101	# define do_aspawn Perl_do_aspawn
	102	# define do_spawn Perl_do_spawn
	103	# define my_fwrite Perl_my_fwrite
	104	# define my_getpwnam Perl_my_getpwnam
	105	# define my_getpwuid Perl_my_getpwuid
	106	# define my_getpwent Perl_my_getpwent
	107	# define my_endpwent Perl_my_endpwent
	108	# define my_getlogin Perl_my_getlogin
	109	# define rmscopy Perl_rmscopy
	110	# define init_os_extras Perl_init_os_extras
	111	#endif
	112
	113	/* Delete if at all possible, changing protections if necessary. */
748a9306	114	#define unlink kill_file
748a9306	115
e518068a	116	/* The VMS C RTL has vfork() but not fork(). Both actually work in a way
	117	* that's somewhere between Unix vfork() and VMS lib$spawn(), so it's
	118	* probably not a good idea to use them much. That said, we'll try to
	119	* use vfork() in either case.
	120	*/
	121	#define fork vfork
	122
748a9306	123	/* Macros to set errno using the VAX thread-safe calls, if present */
	124	#if (defined(__DECC) \|\| defined(__DECCXX)) && !defined(__ALPHA)
	125	# define set_errno(v) (cma$tis_errno_set_value(v))
	126	# define set_vaxc_errno(v) (vaxc$errno = (v))
	127	#else
	128	# define set_errno(v) (errno = (v))
	129	# define set_vaxc_errno(v) (vaxc$errno = (v))
	130	#endif
	131
	132	/* Handy way to vet calls to VMS system services and RTL routines. */
bf109933	133	#define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
748a9306	134	if (!((__ckvms_sts=(call))&1)) { \
748a9306	135	set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
e518068a	136	croak("Fatal VMS error (status=%d) at %s, line %d", \
bf109933	137	__ckvms_sts,__FILE__,__LINE__); } } STMT_END
a0d0e21e	138
	139	#ifdef VMS_DO_SOCKETS
	140	#include "sockadapt.h"
	141	#endif
	142
c07a80fd	143	#define BIT_BUCKET "_NLA0:"
c07a80fd	144	#define PERL_SYS_INIT(c,v) getredirection((c),(v))
bf109933	145	#define PERL_SYS_TERM()
bf109933	146	#define dXSUB_SYS int dummy
a0d0e21e	147	#define HAS_KILL
	148	#define HAS_WAIT
	149
e518068a	150	/* VMS:
	151	* This symbol, if defined, indicates that the program is running under
	152	* VMS. It's a symbol automagically defined by all VMS C compilers I've seen.
	153	* Just in case, however . . . */
	154	#ifndef VMS
	155	#define VMS /**/
	156	#endif
	157
	158	/* HAS_IOCTL:
	159	* This symbol, if defined, indicates that the ioctl() routine is
	160	* available to set I/O characteristics
a0d0e21e	161	*/
e518068a	162	#undef HAS_IOCTL /**/
	163
	164	/* HAS_UTIME:
	165	* This symbol, if defined, indicates that the routine utime() is
	166	* available to update the access and modification times of files.
	167	*/
	168	#define HAS_UTIME /**/
a0d0e21e	169
e518068a	170	/* HAS_GROUP
	171	* This symbol, if defined, indicates that the getgrnam(),
	172	* getgrgid(), and getgrent() routines are available to
	173	* get group entries.
	174	*/
	175	#undef HAS_GROUP /**/
	176
	177	/* HAS_PASSWD
	178	* This symbol, if defined, indicates that the getpwnam(),
	179	* getpwuid(), and getpwent() routines are available to
	180	* get password entries.
	181	*/
	182	#define HAS_PASSWD /**/
	183
	184	#define HAS_KILL
	185	#define HAS_WAIT
	186
a0d0e21e	187	/*
	188	* fwrite1() should be a routine with the same calling sequence as fwrite(),
	189	* but which outputs all of the bytes requested as a single stream (unlike
	190	* fwrite() itself, which on some systems outputs several distinct records
	191	* if the number_of_items parameter is >1).
	192	*/
	193	#define fwrite1 my_fwrite
	194
	195	/* Use our own rmdir() */
	196	#define rmdir(name) do_rmdir(name)
	197
	198	/* Assorted fiddling with sigs . . . */
	199	# include <signal.h>
	200	#define ABORT() abort()
	201
748a9306	202	/* Used with our my_utime() routine in vms.c */
	203	struct utimbuf {
	204	time_t actime;
	205	time_t modtime;
	206	};
	207	#define utime my_utime
	208
a0d0e21e	209	/* This is what times() returns, but <times.h> calls it tbuffer_t on VMS */
	210
	211	struct tms {
	212	clock_t tms_utime; /* user time */
	213	clock_t tms_stime; /* system time - always 0 on VMS */
	214	clock_t tms_cutime; /* user time, children */
	215	clock_t tms_cstime; /* system time, children - always 0 on VMS */
	216	};
	217
e518068a	218	/* Prior to VMS 7.0, the CRTL gmtime() routine was a stub which always
	219	* returned NULL. Substitute our own routine, which uses the logical
	220	* SYS$TIMEZONE_DIFFERENTIAL, whcih the native UTC support routines
	221	* in VMS 6.0 or later use.*
	222	*/
	223	#define gmtime(t) my_gmtime(t)
	224
a0d0e21e	225	/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
	226	* messages in text strings . . .
	227	*/
	228
	229	#define sys_nerr EVMSERR /* EVMSERR is as high as we can go. */
	230
	231	/* Look up new %ENV values on the fly */
	232	#define DYNAMIC_ENV_FETCH 1
	233	#define ENV_HV_NAME "%EnV%VmS%"
	234
c07a80fd	235	/* Thin jacket around cuserid() tomatch Unix' calling sequence */
	236	#define getlogin my_getlogin
	237
	238	/* Ditto for sys$hash_passwrod() . . . */
	239	#define crypt my_crypt
	240
a0d0e21e	241	/* Use our own stat() clones, which handle Unix-style directory names */
	242	#define Stat(name,bufptr) flex_stat(name,bufptr)
	243	#define Fstat(fd,bufptr) flex_fstat(fd,bufptr)
	244
a5f75d66	245	/* By default, flush data all the way to disk, not just to RMS buffers */
	246	#define Fflush(fp) ((fflush(fp) \|\| fsync(fileno(fp))) ? EOF : 0)
	247
a0d0e21e	248	/* Setup for the dirent routines:
	249	* opendir(), closedir(), readdir(), seekdir(), telldir(), and
	250	* vmsreaddirversions(), and preprocessor stuff on which these depend:
	251	* Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
	252	* This code has no copyright.
	253	*/
	254	/* Data structure returned by READDIR(). */
	255	struct dirent {
	256	char d_name[256]; /* File name */
	257	int d_namlen; /* Length of d_name */
	258	int vms_verscount; /* Number of versions */
	259	int vms_versions[20]; /* Version numbers */
	260	};
	261
	262	/* Handle returned by opendir(), used by the other routines. You
	263	* are not supposed to care what's inside this structure. */
	264	typedef struct _dirdesc {
	265	long context;
	266	int vms_wantversions;
	267	unsigned long int count;
	268	char *pattern;
	269	struct dirent entry;
	270	struct dsc$descriptor_s pat;
	271	} DIR;
	272
	273	#define rewinddir(dirp) seekdir((dirp), 0)
	274
748a9306	275	/* used for our emulation of getpw* */
	276	struct passwd {
	277	char pw_name; / Username */
	278	char *pw_passwd;
	279	Uid_t pw_uid; /* UIC member number */
	280	Gid_t pw_gid; /* UIC group number */
	281	char pw_comment; / Default device/directory (Unix-style) */
	282	char pw_gecos; / Owner */
	283	char pw_dir; / Default device/directory (VMS-style) */
	284	char pw_shell; / Default CLI name (eg. DCL) */
	285	};
	286	#define pw_unixdir pw_comment /* Default device/directory (Unix-style) */
	287	#define getpwnam my_getpwnam
	288	#define getpwuid my_getpwuid
	289	#define getpwent my_getpwent
	290	#define endpwent my_endpwent
	291	#define setpwent my_endpwent
	292
	293	/* Our own stat_t substitute, since we play with st_dev and st_ino -
	294	* we want atomic types so Unix-bound code which compares these fields
c07a80fd	295	* for two files will work most of the time under VMS.
	296	* N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
	297	* sizeof(unsigned) + sizeof(unsigned short). We can't use a union type
	298	* to map the unsigned int we want and the unsigned short[3] the CRTL
	299	* returns into the same member, since gcc has different ideas than DECC
	300	* and VAXC about sizing union types.
	301	* N.B 2. The routine cando() in vms.c assumes that &stat.st_ino is the
	302	* address of a FID.
748a9306	303	*/
	304	/* First, grab the system types, so we don't clobber them later */
	305	#include <stat.h>
	306	/* Since we've got to match the size of the CRTL's stat_t, we need
	307	* to mimic DECC's alignment settings.
	308	*/
	309	#if defined(__DECC) \|\| defined(__DECCXX)
	310	# pragma __member_alignment __save
	311	# pragma __nomember_alignment
	312	#endif
	313	#if defined(__DECC)
	314	# pragma __message __save
	315	# pragma __message disable (__MISALGNDSTRCT)
	316	# pragma __message disable (__MISALGNDMEM)
	317	#endif
	318	struct mystat
	319	{
	320	char st_devnam; / pointer to device name */
c07a80fd	321	unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
c07a80fd	322	unsigned short rvn; /* FID (num,seq,rvn) */
748a9306	323	unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
	324	int st_nlink; /* for compatibility - not really used */
	325	unsigned st_uid; /* from ACP - QIO uic field */
	326	unsigned short st_gid; /* group number extracted from st_uid */
	327	dev_t st_rdev; /* for compatibility - always zero */
	328	off_t st_size; /* file size in bytes */
	329	unsigned st_atime; /* file access time; always same as st_mtime */
	330	unsigned st_mtime; /* last modification time */
	331	unsigned st_ctime; /* file creation time */
	332	char st_fab_rfm; /* record format */
	333	char st_fab_rat; /* record attributes */
	334	char st_fab_fsz; /* fixed header size */
	335	unsigned st_dev; /* encoded device name */
	336	};
748a9306	337	#define stat mystat
	338	typedef unsigned mydev_t;
	339	#define dev_t mydev_t
c07a80fd	340	typedef unsigned myino_t;
748a9306	341	#define ino_t myino_t
	342	#if defined(__DECC) \|\| defined(__DECCXX)
	343	# pragma __member_alignment __restore
	344	#endif
	345	#if defined(__DECC)
	346	# pragma __message __restore
	347	#endif
	348	/* Cons up a 'delete' bit for testing access */
	349	#define S_IDUSR (S_IWUSR \| S_IXUSR)
	350	#define S_IDGRP (S_IWGRP \| S_IXGRP)
	351	#define S_IDOTH (S_IWOTH \| S_IXOTH)
a0d0e21e	352
	353	/* Prototypes for functions unique to vms.c. Don't include replacements
	354	* for routines in the mainline source files excluded by #ifndef VMS;
	355	* their prototypes are already in proto.h.
	356	*
	357	* In order to keep Gen_ShrFls.Pl happy, functions which are to be made
	358	* available to images linked to PerlShr.Exe must be declared between the
	359	* __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
	360	* <data type><TAB>name<WHITESPACE>_((<prototype args>));
	361	*/
c07a80fd	362	/* prototype section start marker; `typedef' passes through cpp */
	363	typedef char __VMS_PROTOTYPES__;
	364	int my_trnlnm _((char , char , unsigned long int));
a0d0e21e	365	char * my_getenv _((char *));
c07a80fd	366	char * my_crypt _((const char , const char ));
a0d0e21e	367	unsigned long int waitpid _((unsigned long int, int *, int));
a0d0e21e	368	char * my_gconvert _((double, int, int, char *));
	369	int do_rmdir _((char *));
	370	int kill_file _((char *));
748a9306	371	int my_utime _((char , struct utimbuf ));
a0d0e21e	372	char * fileify_dirspec _((char , char ));
	373	char * fileify_dirspec_ts _((char , char ));
	374	char * pathify_dirspec _((char , char ));
	375	char * pathify_dirspec_ts _((char , char ));
	376	char * tounixspec _((char , char ));
	377	char * tounixspec_ts _((char , char ));
	378	char * tovmsspec _((char , char ));
	379	char * tovmsspec_ts _((char , char ));
	380	char * tounixpath _((char , char ));
	381	char * tounixpath_ts _((char , char ));
	382	char * tovmspath _((char , char ));
	383	char * tovmspath_ts _((char , char ));
	384	void getredirection _(());
	385	DIR * opendir _((char *));
	386	struct dirent * readdir _((DIR *));
	387	long telldir _((DIR *));
	388	void seekdir _((DIR *, long));
	389	void closedir _((DIR *));
	390	void vmsreaddirversions _((DIR *, int));
	391	void getredirection _((int , char **));
e518068a	392	struct tm my_gmtime _((const time_t ));
748a9306	393	I32 cando_by_name _((I32, I32, char *));
	394	int flex_fstat _((int, struct stat *));
	395	int flex_stat _((char , struct stat ));
a0d0e21e	396	int trim_unixpath _((char , char));
748a9306	397	bool vms_do_aexec _((SV , SV , SV *));
a0d0e21e	398	bool vms_do_exec _((char *));
748a9306	399	unsigned long int do_aspawn _((SV , SV , SV *));
a0d0e21e	400	unsigned long int do_spawn _((char *));
a0d0e21e	401	int my_fwrite _((void , size_t, size_t, FILE ));
748a9306	402	struct passwd * my_getpwnam _((char *name));
	403	struct passwd * my_getpwuid _((Uid_t uid));
	404	struct passwd * my_getpwent _(());
	405	void my_endpwent _(());
c07a80fd	406	char * my_getlogin _(());
bf109933	407	int rmscopy _((char , char , int));
748a9306	408	void init_os_extras _(());
c07a80fd	409	typedef char __VMS_SEPYTOTORP__;
c07a80fd	410	/* prototype section end marker; `typedef' passes through cpp */
a0d0e21e	411
a0d0e21e	412	#ifndef VMS_DO_SOCKETS
748a9306	413	/* This relies on tricks in perl.h to pick up that these manifest constants
	414	* are undefined and set up conversion routines. It will then redefine
	415	* these manifest constants, so the actual values will match config.h
	416	*/
	417	#undef HAS_HTONS
	418	#undef HAS_NTOHS
	419	#undef HAS_HTONL
	420	#undef HAS_NTOHL
a0d0e21e	421	#endif
a0d0e21e	422
482b294c	423	#define TMPPATH "sys$scratch:perl-eXXXXXX"
482b294c	424
a0d0e21e	425	#endif /* __vmsish_h_included */