[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, READONLYEXT: 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,READONLYEXT,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 */
#ifdef __DECC
#  include <unistd.h> /* DECC has this; VAXC and gcc don't */
#endif

/* Our own contribution to PerlShr's global symbols . . . */
#ifdef EMBED
#  define my_trnlnm		Perl_my_trnlnm
#  define my_getenv		Perl_my_getenv
#  define prime_env_iter	Perl_prime_env_iter
#  define my_setenv		Perl_my_setenv
#  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 rmsexpand	Perl_rmsexpand
#  define rmsexpand_ts	Perl_rmsexpand_ts
#  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 my_vfork		Perl_my_vfork
#  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_binmode		Perl_my_binmode
#  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

/* 
 * Intercept calls to fork, so we know whether subsequent calls to
 * exec should be handled in VMSish or Unixish style.
 */
#define fork my_vfork
#ifndef __DONT_MASK_VFORK  /* #defined in vms.c so we see real vfork */
#  ifdef vfork
#    undef vfork
#  endif
#  define vfork my_vfork
#endif

/* BIG_TIME:
 *	This symbol is defined if Time_t is an unsigned type on this system.
 */
#define BIG_TIME

/* USE_STAT_RDEV:
 *	This symbol is defined if this system has a stat structure declaring
 *	st_rdev
 */
#define USE_STAT_RDEV 	/**/

/* ACME_MESS:
 *	This symbol, if defined, indicates that error messages should be 
 *	should be generated in a format that allows the use of the Acme
 *	GUI/editor's autofind feature.
 */
#undef ACME_MESS	/**/

/* 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

/* Same thing, but don't call back to Perl's croak(); useful for errors
 * occurring during startup, before Perl's state is initialized */
#define _ckvmssts_noperl(call) STMT_START { register unsigned long int __ckvms_sts; \
  if (!((__ckvms_sts=(call))&1)) { \
  set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
  fprintf(Perl_debug_log,"Fatal VMS error (status=%d) at %s, line %d", \
  __ckvms_sts,__FILE__,__LINE__); lib$signal(__ckvms_sts); } } 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
  
/* USEMYBINMODE
 *	This symbol, if defined, indicates that the program should
 *	use the routine my_binmode(FILE *fp, char iotype) to insure
 *	that a file is in "binary" mode -- that is, that no translation
 *	of bytes occurs on read or write operations.
 */
#define USEMYBINMODE

/*
 * 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()
    /* VAXC's signal.h doesn't #define SIG_ERR, but provides BADSIG instead. */
#if !defined(SIG_ERR) && defined(BADSIG)
#  define SIG_ERR BADSIG
#endif


/* 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
 * prior to v7.0.  We check the DECC manifest to see whether it's already
 * done this for us, relying on the fact that perl.h #includes <time.h>
 * before it #includes "vmsish.h".
 */

#ifndef __TMS
  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 */
  };
#else
   /* The new headers change the times() prototype to tms from tbuffer */
#  define tbuffer_t struct tms
#endif

/* 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>));
 */

void	prime_env_iter _((void));
void	getredirection _((int *, char ***));
void	init_os_extras _(());
/* 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 *	rmsexpand _((char *, char *, char *, unsigned));
char *	rmsexpand_ts _((char *, char *, char *, unsigned));
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));
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*));
int	my_vfork _(());
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 *));
FILE *	my_binmode _((FILE *, char));
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));
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:
36477c24	18	* GLOBALEXT, NOSHAREEXT, READONLYEXT: global[dr]ef declarations
e518068a	19	* ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
	20	* (e.g. pointer fields of descriptors)
	21	*/
	22	#ifdef __DECC
36477c24	23	# pragma message disable (GLOBALEXT,NOSHAREEXT,READONLYEXT,ADDRCONSTEXT,NEEDCONSTEXT)
e518068a	24	#endif
e518068a	25
748a9306	26	/* DEC's C compilers and gcc use incompatible definitions of _to(upp\|low)er() */
	27	#ifdef _toupper
	28	# undef _toupper
	29	#endif
	30	#define _toupper(c) (((c) < 'a' \|\| (c) > 'z') ? (c) : (c) & ~040)
	31	#ifdef _tolower
	32	# undef _tolower
	33	#endif
	34	#define _tolower(c) (((c) < 'A' \|\| (c) > 'Z') ? (c) : (c) \| 040)
4633a7c4	35	/* DECC 1.3 has a funny definition of abs; it's fixed in DECC 4.0, so this
	36	* can go away once DECC 1.3 isn't in use any more. */
	37	#if defined(__ALPHA) && defined(__DECC)
	38	#undef abs
	39	#define abs(__x) __ABS(__x)
	40	#undef labs
	41	#define labs(__x) __LABS(__x)
	42	#endif /* __ALPHA && __DECC */
a0d0e21e	43
	44	/* Assorted things to look like Unix */
	45	#ifdef __GNUC__
	46	#ifndef _IOLBF /* gcc's stdio.h doesn't define this */
	47	#define _IOLBF 1
	48	#endif
748a9306	49	#endif
a0d0e21e	50	#include <processes.h> /* for vfork() */
a0d0e21e	51	#include <unixio.h>
a0d0e21e	52	#include <unixlib.h>
a0d0e21e	53	#include <file.h> /* it's not <sys/file.h>, so don't use I_SYS_FILE */
bbce6d69	54	#ifdef __DECC
	55	# include <unistd.h> /* DECC has this; VAXC and gcc don't */
	56	#endif
bf109933	57
	58	/* Our own contribution to PerlShr's global symbols . . . */
	59	#ifdef EMBED
	60	# define my_trnlnm Perl_my_trnlnm
	61	# define my_getenv Perl_my_getenv
94c456c4	62	# define prime_env_iter Perl_prime_env_iter
94c456c4	63	# define my_setenv Perl_my_setenv
bf109933	64	# define my_crypt Perl_my_crypt
	65	# define waitpid Perl_waitpid
	66	# define my_gconvert Perl_my_gconvert
	67	# define do_rmdir Perl_do_rmdir
	68	# define kill_file Perl_kill_file
	69	# define my_utime Perl_my_utime
bbce6d69	70	# define rmsexpand Perl_rmsexpand
bbce6d69	71	# define rmsexpand_ts Perl_rmsexpand_ts
bf109933	72	# define fileify_dirspec Perl_fileify_dirspec
	73	# define fileify_dirspec_ts Perl_fileify_dirspec_ts
	74	# define pathify_dirspec Perl_pathify_dirspec
	75	# define pathify_dirspec_ts Perl_pathify_dirspec_ts
	76	# define tounixspec Perl_tounixspec
	77	# define tounixspec_ts Perl_tounixspec_ts
	78	# define tovmsspec Perl_tovmsspec
	79	# define tovmsspec_ts Perl_tovmsspec_ts
	80	# define tounixpath Perl_tounixpath
	81	# define tounixpath_ts Perl_tounixpath_ts
	82	# define tovmspath Perl_tovmspath
	83	# define tovmspath_ts Perl_tovmspath_ts
	84	# define getredirection Perl_getredirection
	85	# define opendir Perl_opendir
	86	# define readdir Perl_readdir
	87	# define telldir Perl_telldir
	88	# define seekdir Perl_seekdir
	89	# define closedir Perl_closedir
	90	# define vmsreaddirversions Perl_vmsreaddirversions
	91	# define getredirection Perl_getredirection
	92	# define my_gmtime Perl_my_gmtime
	93	# define cando_by_name Perl_cando_by_name
	94	# define flex_fstat Perl_flex_fstat
	95	# define flex_stat Perl_flex_stat
	96	# define trim_unixpath Perl_trim_unixpath
0414b1a0	97	# define my_vfork Perl_my_vfork
bf109933	98	# define vms_do_aexec Perl_vms_do_aexec
	99	# define vms_do_exec Perl_vms_do_exec
	100	# define do_aspawn Perl_do_aspawn
	101	# define do_spawn Perl_do_spawn
	102	# define my_fwrite Perl_my_fwrite
0414b1a0	103	# define my_binmode Perl_my_binmode
bf109933	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
0414b1a0	116	/*
	117	* Intercept calls to fork, so we know whether subsequent calls to
	118	* exec should be handled in VMSish or Unixish style.
	119	*/
	120	#define fork my_vfork
	121	#ifndef __DONT_MASK_VFORK /* #defined in vms.c so we see real vfork */
	122	# ifdef vfork
	123	# undef vfork
	124	# endif
	125	# define vfork my_vfork
	126	#endif
	127
	128	/* BIG_TIME:
	129	* This symbol is defined if Time_t is an unsigned type on this system.
	130	*/
	131	#define BIG_TIME
	132
	133	/* USE_STAT_RDEV:
	134	* This symbol is defined if this system has a stat structure declaring
	135	* st_rdev
e518068a	136	*/
0414b1a0	137	#define USE_STAT_RDEV /**/
	138
	139	/* ACME_MESS:
	140	* This symbol, if defined, indicates that error messages should be
	141	* should be generated in a format that allows the use of the Acme
	142	* GUI/editor's autofind feature.
	143	*/
	144	#undef ACME_MESS /**/
e518068a	145
748a9306	146	/* Macros to set errno using the VAX thread-safe calls, if present */
	147	#if (defined(__DECC) \|\| defined(__DECCXX)) && !defined(__ALPHA)
	148	# define set_errno(v) (cma$tis_errno_set_value(v))
	149	# define set_vaxc_errno(v) (vaxc$errno = (v))
	150	#else
	151	# define set_errno(v) (errno = (v))
	152	# define set_vaxc_errno(v) (vaxc$errno = (v))
	153	#endif
	154
	155	/* Handy way to vet calls to VMS system services and RTL routines. */
bf109933	156	#define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
748a9306	157	if (!((__ckvms_sts=(call))&1)) { \
748a9306	158	set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
e518068a	159	croak("Fatal VMS error (status=%d) at %s, line %d", \
bf109933	160	__ckvms_sts,__FILE__,__LINE__); } } STMT_END
a0d0e21e	161
0414b1a0	162	/* Same thing, but don't call back to Perl's croak(); useful for errors
	163	* occurring during startup, before Perl's state is initialized */
	164	#define _ckvmssts_noperl(call) STMT_START { register unsigned long int __ckvms_sts; \
	165	if (!((__ckvms_sts=(call))&1)) { \
	166	set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
	167	fprintf(Perl_debug_log,"Fatal VMS error (status=%d) at %s, line %d", \
	168	__ckvms_sts,__FILE__,__LINE__); lib$signal(__ckvms_sts); } } STMT_END
	169
a0d0e21e	170	#ifdef VMS_DO_SOCKETS
	171	#include "sockadapt.h"
	172	#endif
	173
c07a80fd	174	#define BIT_BUCKET "_NLA0:"
c07a80fd	175	#define PERL_SYS_INIT(c,v) getredirection((c),(v))
bf109933	176	#define PERL_SYS_TERM()
bf109933	177	#define dXSUB_SYS int dummy
a0d0e21e	178	#define HAS_KILL
	179	#define HAS_WAIT
	180
e518068a	181	/* VMS:
	182	* This symbol, if defined, indicates that the program is running under
	183	* VMS. It's a symbol automagically defined by all VMS C compilers I've seen.
	184	* Just in case, however . . . */
	185	#ifndef VMS
	186	#define VMS /**/
	187	#endif
	188
	189	/* HAS_IOCTL:
	190	* This symbol, if defined, indicates that the ioctl() routine is
	191	* available to set I/O characteristics
a0d0e21e	192	*/
e518068a	193	#undef HAS_IOCTL /**/
	194
	195	/* HAS_UTIME:
	196	* This symbol, if defined, indicates that the routine utime() is
	197	* available to update the access and modification times of files.
	198	*/
	199	#define HAS_UTIME /**/
a0d0e21e	200
e518068a	201	/* HAS_GROUP
	202	* This symbol, if defined, indicates that the getgrnam(),
	203	* getgrgid(), and getgrent() routines are available to
	204	* get group entries.
	205	*/
	206	#undef HAS_GROUP /**/
	207
	208	/* HAS_PASSWD
	209	* This symbol, if defined, indicates that the getpwnam(),
	210	* getpwuid(), and getpwent() routines are available to
	211	* get password entries.
	212	*/
	213	#define HAS_PASSWD /**/
	214
	215	#define HAS_KILL
	216	#define HAS_WAIT
	217
0414b1a0	218	/* USEMYBINMODE
	219	* This symbol, if defined, indicates that the program should
	220	* use the routine my_binmode(FILE *fp, char iotype) to insure
	221	* that a file is in "binary" mode -- that is, that no translation
	222	* of bytes occurs on read or write operations.
	223	*/
	224	#define USEMYBINMODE
	225
a0d0e21e	226	/*
	227	* fwrite1() should be a routine with the same calling sequence as fwrite(),
	228	* but which outputs all of the bytes requested as a single stream (unlike
	229	* fwrite() itself, which on some systems outputs several distinct records
	230	* if the number_of_items parameter is >1).
	231	*/
	232	#define fwrite1 my_fwrite
	233
	234	/* Use our own rmdir() */
	235	#define rmdir(name) do_rmdir(name)
	236
	237	/* Assorted fiddling with sigs . . . */
	238	# include <signal.h>
	239	#define ABORT() abort()
5f05dabc	240	/* VAXC's signal.h doesn't #define SIG_ERR, but provides BADSIG instead. */
	241	#if !defined(SIG_ERR) && defined(BADSIG)
	242	# define SIG_ERR BADSIG
	243	#endif
	244
a0d0e21e	245
748a9306	246	/* Used with our my_utime() routine in vms.c */
	247	struct utimbuf {
	248	time_t actime;
	249	time_t modtime;
	250	};
	251	#define utime my_utime
	252
0414b1a0	253	/* This is what times() returns, but <times.h> calls it tbuffer_t on VMS
	254	* prior to v7.0. We check the DECC manifest to see whether it's already
	255	* done this for us, relying on the fact that perl.h #includes <time.h>
	256	* before it #includes "vmsish.h".
	257	*/
a0d0e21e	258
0414b1a0	259	#ifndef __TMS
	260	struct tms {
	261	clock_t tms_utime; /* user time */
	262	clock_t tms_stime; /* system time - always 0 on VMS */
	263	clock_t tms_cutime; /* user time, children */
	264	clock_t tms_cstime; /* system time, children - always 0 on VMS */
	265	};
5f05dabc	266	#else
	267	/* The new headers change the times() prototype to tms from tbuffer */
	268	# define tbuffer_t struct tms
0414b1a0	269	#endif
a0d0e21e	270
e518068a	271	/* Prior to VMS 7.0, the CRTL gmtime() routine was a stub which always
	272	* returned NULL. Substitute our own routine, which uses the logical
	273	* SYS$TIMEZONE_DIFFERENTIAL, whcih the native UTC support routines
	274	* in VMS 6.0 or later use.*
	275	*/
	276	#define gmtime(t) my_gmtime(t)
	277
a0d0e21e	278	/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
	279	* messages in text strings . . .
	280	*/
	281
	282	#define sys_nerr EVMSERR /* EVMSERR is as high as we can go. */
	283
	284	/* Look up new %ENV values on the fly */
	285	#define DYNAMIC_ENV_FETCH 1
	286	#define ENV_HV_NAME "%EnV%VmS%"
	287
c07a80fd	288	/* Thin jacket around cuserid() tomatch Unix' calling sequence */
	289	#define getlogin my_getlogin
	290
	291	/* Ditto for sys$hash_passwrod() . . . */
	292	#define crypt my_crypt
	293
a0d0e21e	294	/* Use our own stat() clones, which handle Unix-style directory names */
	295	#define Stat(name,bufptr) flex_stat(name,bufptr)
	296	#define Fstat(fd,bufptr) flex_fstat(fd,bufptr)
	297
a5f75d66	298	/* By default, flush data all the way to disk, not just to RMS buffers */
	299	#define Fflush(fp) ((fflush(fp) \|\| fsync(fileno(fp))) ? EOF : 0)
	300
a0d0e21e	301	/* Setup for the dirent routines:
	302	* opendir(), closedir(), readdir(), seekdir(), telldir(), and
	303	* vmsreaddirversions(), and preprocessor stuff on which these depend:
	304	* Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
	305	* This code has no copyright.
	306	*/
	307	/* Data structure returned by READDIR(). */
	308	struct dirent {
	309	char d_name[256]; /* File name */
	310	int d_namlen; /* Length of d_name */
	311	int vms_verscount; /* Number of versions */
	312	int vms_versions[20]; /* Version numbers */
	313	};
	314
	315	/* Handle returned by opendir(), used by the other routines. You
	316	* are not supposed to care what's inside this structure. */
	317	typedef struct _dirdesc {
	318	long context;
	319	int vms_wantversions;
	320	unsigned long int count;
	321	char *pattern;
	322	struct dirent entry;
	323	struct dsc$descriptor_s pat;
	324	} DIR;
	325
	326	#define rewinddir(dirp) seekdir((dirp), 0)
	327
748a9306	328	/* used for our emulation of getpw* */
	329	struct passwd {
	330	char pw_name; / Username */
	331	char *pw_passwd;
	332	Uid_t pw_uid; /* UIC member number */
	333	Gid_t pw_gid; /* UIC group number */
	334	char pw_comment; / Default device/directory (Unix-style) */
	335	char pw_gecos; / Owner */
	336	char pw_dir; / Default device/directory (VMS-style) */
	337	char pw_shell; / Default CLI name (eg. DCL) */
	338	};
	339	#define pw_unixdir pw_comment /* Default device/directory (Unix-style) */
	340	#define getpwnam my_getpwnam
	341	#define getpwuid my_getpwuid
	342	#define getpwent my_getpwent
	343	#define endpwent my_endpwent
	344	#define setpwent my_endpwent
	345
	346	/* Our own stat_t substitute, since we play with st_dev and st_ino -
	347	* we want atomic types so Unix-bound code which compares these fields
c07a80fd	348	* for two files will work most of the time under VMS.
	349	* N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
	350	* sizeof(unsigned) + sizeof(unsigned short). We can't use a union type
	351	* to map the unsigned int we want and the unsigned short[3] the CRTL
	352	* returns into the same member, since gcc has different ideas than DECC
	353	* and VAXC about sizing union types.
	354	* N.B 2. The routine cando() in vms.c assumes that &stat.st_ino is the
	355	* address of a FID.
748a9306	356	*/
	357	/* First, grab the system types, so we don't clobber them later */
	358	#include <stat.h>
	359	/* Since we've got to match the size of the CRTL's stat_t, we need
	360	* to mimic DECC's alignment settings.
	361	*/
	362	#if defined(__DECC) \|\| defined(__DECCXX)
	363	# pragma __member_alignment __save
	364	# pragma __nomember_alignment
	365	#endif
	366	#if defined(__DECC)
	367	# pragma __message __save
	368	# pragma __message disable (__MISALGNDSTRCT)
	369	# pragma __message disable (__MISALGNDMEM)
	370	#endif
	371	struct mystat
	372	{
	373	char st_devnam; / pointer to device name */
c07a80fd	374	unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
c07a80fd	375	unsigned short rvn; /* FID (num,seq,rvn) */
748a9306	376	unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
	377	int st_nlink; /* for compatibility - not really used */
	378	unsigned st_uid; /* from ACP - QIO uic field */
	379	unsigned short st_gid; /* group number extracted from st_uid */
	380	dev_t st_rdev; /* for compatibility - always zero */
	381	off_t st_size; /* file size in bytes */
	382	unsigned st_atime; /* file access time; always same as st_mtime */
	383	unsigned st_mtime; /* last modification time */
	384	unsigned st_ctime; /* file creation time */
	385	char st_fab_rfm; /* record format */
	386	char st_fab_rat; /* record attributes */
	387	char st_fab_fsz; /* fixed header size */
	388	unsigned st_dev; /* encoded device name */
	389	};
748a9306	390	#define stat mystat
	391	typedef unsigned mydev_t;
	392	#define dev_t mydev_t
c07a80fd	393	typedef unsigned myino_t;
748a9306	394	#define ino_t myino_t
	395	#if defined(__DECC) \|\| defined(__DECCXX)
	396	# pragma __member_alignment __restore
	397	#endif
	398	#if defined(__DECC)
	399	# pragma __message __restore
	400	#endif
	401	/* Cons up a 'delete' bit for testing access */
	402	#define S_IDUSR (S_IWUSR \| S_IXUSR)
	403	#define S_IDGRP (S_IWGRP \| S_IXGRP)
	404	#define S_IDOTH (S_IWOTH \| S_IXOTH)
a0d0e21e	405
	406	/* Prototypes for functions unique to vms.c. Don't include replacements
	407	* for routines in the mainline source files excluded by #ifndef VMS;
	408	* their prototypes are already in proto.h.
	409	*
	410	* In order to keep Gen_ShrFls.Pl happy, functions which are to be made
	411	* available to images linked to PerlShr.Exe must be declared between the
	412	* __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
	413	* <data type><TAB>name<WHITESPACE>_((<prototype args>));
	414	*/
94c456c4	415
	416	void prime_env_iter _((void));
	417	void getredirection _((int , char **));
	418	void init_os_extras _(());
c07a80fd	419	/* prototype section start marker; `typedef' passes through cpp */
	420	typedef char __VMS_PROTOTYPES__;
	421	int my_trnlnm _((char , char , unsigned long int));
a0d0e21e	422	char * my_getenv _((char *));
c07a80fd	423	char * my_crypt _((const char , const char ));
a0d0e21e	424	unsigned long int waitpid _((unsigned long int, int *, int));
a0d0e21e	425	char * my_gconvert _((double, int, int, char *));
	426	int do_rmdir _((char *));
	427	int kill_file _((char *));
748a9306	428	int my_utime _((char , struct utimbuf ));
bbce6d69	429	char * rmsexpand _((char , char , char *, unsigned));
bbce6d69	430	char * rmsexpand_ts _((char , char , char *, unsigned));
a0d0e21e	431	char * fileify_dirspec _((char , char ));
	432	char * fileify_dirspec_ts _((char , char ));
	433	char * pathify_dirspec _((char , char ));
	434	char * pathify_dirspec_ts _((char , char ));
	435	char * tounixspec _((char , char ));
	436	char * tounixspec_ts _((char , char ));
	437	char * tovmsspec _((char , char ));
	438	char * tovmsspec_ts _((char , char ));
	439	char * tounixpath _((char , char ));
	440	char * tounixpath_ts _((char , char ));
	441	char * tovmspath _((char , char ));
	442	char * tovmspath_ts _((char , char ));
	443	void getredirection _(());
	444	DIR * opendir _((char *));
	445	struct dirent * readdir _((DIR *));
	446	long telldir _((DIR *));
	447	void seekdir _((DIR *, long));
	448	void closedir _((DIR *));
	449	void vmsreaddirversions _((DIR *, int));
e518068a	450	struct tm my_gmtime _((const time_t ));
748a9306	451	I32 cando_by_name _((I32, I32, char *));
	452	int flex_fstat _((int, struct stat *));
	453	int flex_stat _((char , struct stat ));
a0d0e21e	454	int trim_unixpath _((char , char));
0414b1a0	455	int my_vfork _(());
748a9306	456	bool vms_do_aexec _((SV , SV , SV *));
a0d0e21e	457	bool vms_do_exec _((char *));
748a9306	458	unsigned long int do_aspawn _((SV , SV , SV *));
a0d0e21e	459	unsigned long int do_spawn _((char *));
a0d0e21e	460	int my_fwrite _((void , size_t, size_t, FILE ));
0414b1a0	461	FILE * my_binmode _((FILE *, char));
748a9306	462	struct passwd * my_getpwnam _((char *name));
	463	struct passwd * my_getpwuid _((Uid_t uid));
	464	struct passwd * my_getpwent _(());
	465	void my_endpwent _(());
c07a80fd	466	char * my_getlogin _(());
bf109933	467	int rmscopy _((char , char , int));
c07a80fd	468	typedef char __VMS_SEPYTOTORP__;
c07a80fd	469	/* prototype section end marker; `typedef' passes through cpp */
a0d0e21e	470
a0d0e21e	471	#ifndef VMS_DO_SOCKETS
748a9306	472	/* This relies on tricks in perl.h to pick up that these manifest constants
	473	* are undefined and set up conversion routines. It will then redefine
	474	* these manifest constants, so the actual values will match config.h
	475	*/
	476	#undef HAS_HTONS
	477	#undef HAS_NTOHS
	478	#undef HAS_HTONL
	479	#undef HAS_NTOHL
a0d0e21e	480	#endif
a0d0e21e	481
482b294c	482	#define TMPPATH "sys$scratch:perl-eXXXXXX"
482b294c	483
a0d0e21e	484	#endif /* __vmsish_h_included */