source: vendor/perl/5.8.8/vms/vmsish.h

Last change on this file was 3181, checked in by bird, 18 years ago

perl 5.8.8
File size: 31.8 KB
Line 
1/* vmsish.h
2 *
3 * VMS-specific C header file for perl5.
4 *
5 * Last revised: 16-Sep-1998 by Charles Bailey bailey@newman.upenn.edu
6 * Version: 5.5.2
7 */
8
9#ifndef __vmsish_h_included
10#define __vmsish_h_included
11
12#include <descrip.h> /* for dirent struct definitions */
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#include <stsdef.h> /* bitmasks for exit status testing */
17
18/* Suppress compiler warnings from DECC for VMS-specific extensions:
19 * ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
20 * (e.g. pointer fields of descriptors)
21 */
22#if defined(__DECC) || defined(__DECCXX)
23# pragma message disable (ADDRCONSTEXT,NEEDCONSTEXT)
24#endif
25
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)
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) || defined(__DECCXX))
38#undef abs
39#define abs(__x) __ABS(__x)
40#undef labs
41#define labs(__x) __LABS(__x)
42#endif /* __ALPHA && __DECC */
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
49#endif
50#include <processes.h> /* for vfork() */
51#include <unixio.h>
52#include <unixlib.h>
53#include <file.h> /* it's not <sys/file.h>, so don't use I_SYS_FILE */
54#if (defined(__DECC) && defined(__DECC_VER) && __DECC_VER > 20000000) || defined(__DECCXX)
55# include <unistd.h> /* DECC has this; gcc doesn't */
56#endif
57
58#ifdef NO_PERL_TYPEDEFS /* a2p; we don't want Perl's special routines */
59# define DONT_MASK_RTL_CALLS
60#endif
61
62/* Note that we do, in fact, have this */
63#define HAS_GETENV_SV
64#define HAS_GETENV_LEN
65
66/* All this stiff is for the x2P programs. Hopefully they'll still work */
67#if defined(PERL_FOR_X2P)
68#ifndef aTHX_
69#define aTHX_
70#endif
71#ifndef pTHX_
72#define pTHX_
73#endif
74#ifndef pTHX
75#define pTHX
76#endif
77#endif
78
79#ifndef DONT_MASK_RTL_CALLS
80# ifdef getenv
81# undef getenv
82# endif
83 /* getenv used for regular logical names */
84# define getenv(v) Perl_my_getenv(aTHX_ v,TRUE)
85#endif
86#ifdef getenv_len
87# undef getenv_len
88#endif
89#define getenv_len(v,l) Perl_my_getenv_len(aTHX_ v,l,TRUE)
90
91/* DECC introduces this routine in the RTL as of VMS 7.0; for now,
92 * we'll use ours, since it gives us the full VMS exit status. */
93#define waitpid my_waitpid
94
95/* Don't redeclare standard RTL routines in Perl's header files;
96 * VMS history or extensions makes some of the formal protoypes
97 * differ from the common Unix forms.
98 */
99#define DONT_DECLARE_STD 1
100
101/* Our own contribution to PerlShr's global symbols . . . */
102#define prime_env_iter Perl_prime_env_iter
103#define vms_image_init Perl_vms_image_init
104#define my_tmpfile Perl_my_tmpfile
105#define vmstrnenv Perl_vmstrnenv
106#if !defined(PERL_IMPLICIT_CONTEXT)
107#define my_getenv_len Perl_my_getenv_len
108#define vmssetenv Perl_vmssetenv
109#define my_trnlnm Perl_my_trnlnm
110#define my_setenv Perl_my_setenv
111#define my_getenv Perl_my_getenv
112#define tounixspec Perl_tounixspec
113#define tounixspec_ts Perl_tounixspec_ts
114#define tovmsspec Perl_tovmsspec
115#define tovmsspec_ts Perl_tovmsspec_ts
116#define tounixpath Perl_tounixpath
117#define tounixpath_ts Perl_tounixpath_ts
118#define tovmspath Perl_tovmspath
119#define tovmspath_ts Perl_tovmspath_ts
120#define do_rmdir Perl_do_rmdir
121#define fileify_dirspec Perl_fileify_dirspec
122#define fileify_dirspec_ts Perl_fileify_dirspec_ts
123#define pathify_dirspec Perl_pathify_dirspec
124#define pathify_dirspec_ts Perl_pathify_dirspec_ts
125#define trim_unixpath Perl_trim_unixpath
126#define opendir Perl_opendir
127#define rmscopy Perl_rmscopy
128#define my_mkdir Perl_my_mkdir
129#define vms_do_aexec Perl_vms_do_aexec
130#define vms_do_exec Perl_vms_do_exec
131#define my_waitpid Perl_my_waitpid
132#define my_crypt Perl_my_crypt
133#define kill_file Perl_kill_file
134#define my_utime Perl_my_utime
135#define my_chdir Perl_my_chdir
136#define do_aspawn Perl_do_aspawn
137#define seekdir Perl_seekdir
138#define my_gmtime Perl_my_gmtime
139#define my_localtime Perl_my_localtime
140#define my_time Perl_my_time
141#define do_spawn Perl_do_spawn
142#define flex_fstat Perl_flex_fstat
143#define flex_stat Perl_flex_stat
144#define cando_by_name Perl_cando_by_name
145#define my_getpwnam Perl_my_getpwnam
146#define my_getpwuid Perl_my_getpwuid
147#define my_flush Perl_my_flush
148#define readdir Perl_readdir
149#define readdir_r Perl_readdir_r
150#else
151#define my_getenv_len(a,b,c) Perl_my_getenv_len(aTHX_ a,b,c)
152#define vmssetenv(a,b,c) Perl_vmssetenv(aTHX_ a,b,c)
153#define my_trnlnm(a,b,c) Perl_my_trnlnm(aTHX_ a,b,c)
154#define my_setenv(a,b) Perl_my_setenv(aTHX_ a,b)
155#define my_getenv(a,b) Perl_my_getenv(aTHX_ a,b)
156#define tounixspec(a,b) Perl_tounixspec(aTHX_ a,b)
157#define tounixspec_ts(a,b) Perl_tounixspec_ts(aTHX_ a,b)
158#define tovmsspec(a,b) Perl_tovmsspec(aTHX_ a,b)
159#define tovmsspec_t(a,b) Perl_tovmsspec_ts(aTHX_ a,b)
160#define tounixpath(a,b) Perl_tounixpath(aTHX_ a,b)
161#define tounixpath_ts(a,b) Perl_tounixpath_ts(aTHX_ a,b)
162#define tovmspath(a,b) Perl_tovmspath(aTHX_ a,b)
163#define tovmspath_ts(a,b) Perl_tovmspath_ts(aTHX_ a,b)
164#define do_rmdir(a) Perl_do_rmdir(aTHX_ a)
165#define fileify_dirspec(a,b) Perl_fileify_dirspec(aTHX_ a,b)
166#define fileify_dirspec_ts(a,b) Perl_fileify_dirspec_ts(aTHX_ a,b)
167#define pathify_dirspec Perl_pathify_dirspec
168#define pathify_dirspec_ts Perl_pathify_dirspec_ts
169#define rmsexpand(a,b,c,d) Perl_rmsexpand(aTHX_ a,b,c,d)
170#define rmsexpand_ts(a,b,c,d) Perl_rmsexpand_ts(aTHX_ a,b,c,d)
171#define trim_unixpath(a,b,c) Perl_trim_unixpath(aTHX_ a,b,c)
172#define opendir(a) Perl_opendir(aTHX_ a)
173#define rmscopy(a,b,c) Perl_rmscopy(aTHX_ a,b,c)
174#define my_mkdir(a,b) Perl_my_mkdir(aTHX_ a,b)
175#define vms_do_aexec(a,b,c) Perl_vms_do_aexec(aTHX_ a,b,c)
176#define vms_do_exec(a) Perl_vms_do_exec(aTHX_ a)
177#define my_waitpid(a,b,c) Perl_my_waitpid(aTHX_ a,b,c)
178#define my_crypt(a,b) Perl_my_crypt(aTHX_ a,b)
179#define kill_file(a) Perl_kill_file(aTHX_ a)
180#define my_utime(a,b) Perl_my_utime(aTHX_ a,b)
181#define my_chdir(a) Perl_my_chdir(aTHX_ a)
182#define do_aspawn(a,b,c) Perl_do_aspawn(aTHX_ a,b,c)
183#define seekdir(a,b) Perl_seekdir(aTHX_ a,b)
184#define my_gmtime(a) Perl_my_gmtime(aTHX_ a)
185#define my_localtime(a) Perl_my_localtime(aTHX_ a)
186#define my_time(a) Perl_my_time(aTHX_ a)
187#define do_spawn(a) Perl_do_spawn(aTHX_ a)
188#define flex_fstat(a,b) Perl_flex_fstat(aTHX_ a,b)
189#define cando_by_name(a,b,c) Perl_cando_by_name(aTHX_ a,b,c)
190#define flex_stat(a,b) Perl_flex_stat(aTHX_ a,b)
191#define my_getpwnam(a) Perl_my_getpwnam(aTHX_ a)
192#define my_getpwuid(a) Perl_my_getpwuid(aTHX_ a)
193#define my_flush(a) Perl_my_flush(aTHX_ a)
194#define readdir(a) Perl_readdir(aTHX_ a)
195#define readdir_r(a,b,c) Perl_readdir_r(aTHX_ a,b,c)
196#endif
197#define my_gconvert Perl_my_gconvert
198#define telldir Perl_telldir
199#define closedir Perl_closedir
200#define vmsreaddirversions Perl_vmsreaddirversions
201#define my_sigemptyset Perl_my_sigemptyset
202#define my_sigfillset Perl_my_sigfillset
203#define my_sigaddset Perl_my_sigaddset
204#define my_sigdelset Perl_my_sigdelset
205#define my_sigismember Perl_my_sigismember
206#define my_sigprocmask Perl_my_sigprocmask
207#define my_vfork Perl_my_vfork
208#define my_fdopen Perl_my_fdopen
209#define my_fclose Perl_my_fclose
210#define my_fwrite Perl_my_fwrite
211#define my_getpwent() Perl_my_getpwent(aTHX)
212#define my_endpwent() Perl_my_endpwent(aTHX)
213#define my_getlogin Perl_my_getlogin
214#define init_os_extras Perl_init_os_extras
215
216/* Delete if at all possible, changing protections if necessary. */
217#define unlink kill_file
218
219/*
220 * Intercept calls to fork, so we know whether subsequent calls to
221 * exec should be handled in VMSish or Unixish style.
222 */
223#define fork my_vfork
224#ifndef DONT_MASK_RTL_CALLS /* #defined in vms.c so we see real vfork */
225# ifdef vfork
226# undef vfork
227# endif
228# define vfork my_vfork
229#endif
230
231/*
232 * Toss in a shim to tmpfile which creates a plain temp file if the
233 * RMS tmp mechanism won't work (e.g. if someone is relying on ACLs
234 * from a specific directory to permit creation of files).
235 */
236#ifndef DONT_MASK_RTL_CALLS
237# define tmpfile Perl_my_tmpfile
238#endif
239
240
241/* BIG_TIME:
242 * This symbol is defined if Time_t is an unsigned type on this system.
243 */
244#define BIG_TIME
245
246/* ACME_MESS:
247 * This symbol, if defined, indicates that error messages should be
248 * should be generated in a format that allows the use of the Acme
249 * GUI/editor's autofind feature.
250 */
251#undef ACME_MESS /**/
252
253/* ALTERNATE_SHEBANG:
254 * This symbol, if defined, contains a "magic" string which may be used
255 * as the first line of a Perl program designed to be executed directly
256 * by name, instead of the standard Unix #!. If ALTERNATE_SHEBANG
257 * begins with a character other then #, then Perl will only treat
258 * it as a command line if if finds the string "perl" in the first
259 * word; otherwise it's treated as the first line of code in the script.
260 * (IOW, Perl won't hand off to another interpreter via an alternate
261 * shebang sequence that might be legal Perl code.)
262 */
263#define ALTERNATE_SHEBANG "$"
264
265/* Lower case entry points for these are missing in some earlier RTLs
266 * so we borrow the defines and declares from errno.h and upcase them.
267 */
268#if defined(VMS_WE_ARE_CASE_SENSITIVE) && (__DECC_VER < 50500000)
269# define errno (*CMA$TIS_ERRNO_GET_ADDR())
270# define vaxc$errno (*CMA$TIS_VMSERRNO_GET_ADDR())
271 int *CMA$TIS_ERRNO_GET_ADDR (void); /* UNIX style error code */
272 int *CMA$TIS_VMSERRNO_GET_ADDR (void); /* VMS error (errno == EVMSERR) */
273#endif
274
275/* Macros to set errno using the VAX thread-safe calls, if present */
276#if (defined(__DECC) || defined(__DECCXX)) && !defined(__ALPHA)
277# define set_errno(v) (cma$tis_errno_set_value(v))
278 void cma$tis_errno_set_value(int __value); /* missing in some errno.h */
279# define set_vaxc_errno(v) (vaxc$errno = (v))
280#else
281# define set_errno(v) (errno = (v))
282# define set_vaxc_errno(v) (vaxc$errno = (v))
283#endif
284
285/* Support for 'vmsish' behaviors enabled with C<use vmsish> pragma */
286
287#define COMPLEX_STATUS 1 /* We track both "POSIX" and VMS values */
288
289#define HINT_V_VMSISH 24
290#define HINT_M_VMSISH_STATUS 0x40000000 /* system, $? return VMS status */
291#define HINT_M_VMSISH_TIME 0x80000000 /* times are local, not UTC */
292#define NATIVE_HINTS (PL_hints >> HINT_V_VMSISH) /* used in op.c */
293
294#define TEST_VMSISH(h) (PL_curcop->op_private & ((h) >> HINT_V_VMSISH))
295#define VMSISH_STATUS TEST_VMSISH(HINT_M_VMSISH_STATUS)
296#define VMSISH_TIME TEST_VMSISH(HINT_M_VMSISH_TIME)
297
298/* VMS-specific data storage */
299
300#define HAVE_INTERP_INTERN
301struct interp_intern {
302 int hushed;
303 double inv_rand_max;
304};
305#define VMSISH_HUSHED (PL_sys_intern.hushed)
306#define MY_INV_RAND_MAX (PL_sys_intern.inv_rand_max)
307
308/* Flags for vmstrnenv() */
309#define PERL__TRNENV_SECURE 0x01
310#define PERL__TRNENV_JOIN_SEARCHLIST 0x02
311
312/* Handy way to vet calls to VMS system services and RTL routines. */
313#define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
314 if (!((__ckvms_sts=(call))&1)) { \
315 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
316 Perl_croak(aTHX_ "Fatal VMS error (status=%d) at %s, line %d", \
317 __ckvms_sts,__FILE__,__LINE__); } } STMT_END
318
319/* Same thing, but don't call back to Perl's croak(); useful for errors
320 * occurring during startup, before Perl's state is initialized */
321#define _ckvmssts_noperl(call) STMT_START { register unsigned long int __ckvms_sts; \
322 if (!((__ckvms_sts=(call))&1)) { \
323 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
324 fprintf(stderr,"Fatal VMS error (status=%d) at %s, line %d", \
325 __ckvms_sts,__FILE__,__LINE__); lib$signal(__ckvms_sts); } } STMT_END
326
327#ifdef VMS_DO_SOCKETS
328#include "sockadapt.h"
329#define PERL_SOCK_SYSREAD_IS_RECV
330#define PERL_SOCK_SYSWRITE_IS_SEND
331#endif
332
333#define BIT_BUCKET "_NLA0:"
334#define PERL_SYS_INIT(c,v) MALLOC_CHECK_TAINT2(*c,*v) vms_image_init((c),(v)); MALLOC_INIT
335#define PERL_SYS_TERM() OP_REFCNT_TERM; MALLOC_TERM
336#define dXSUB_SYS
337#define HAS_KILL
338#define HAS_WAIT
339
340#define PERL_FS_VER_FMT "%d_%d_%d"
341/* Temporary; we need to add support for this to Configure.Com */
342#ifdef PERL_INC_VERSION_LIST
343# undef PERL_INC_VERSION_LIST
344#endif
345
346/* VMS:
347 * This symbol, if defined, indicates that the program is running under
348 * VMS. It's a symbol automagically defined by all VMS C compilers I've seen.
349 * Just in case, however . . . */
350#ifndef VMS
351#define VMS /**/
352#endif
353
354/* HAS_IOCTL:
355 * This symbol, if defined, indicates that the ioctl() routine is
356 * available to set I/O characteristics
357 */
358#if defined(__CRTL_VER) && __CRTL_VER >= 70000000
359#define HAS_IOCTL /**/
360#else
361#undef HAS_IOCTL /**/
362#endif
363
364/* HAS_UTIME:
365 * This symbol, if defined, indicates that the routine utime() is
366 * available to update the access and modification times of files.
367 */
368#define HAS_UTIME /**/
369
370/* HAS_GROUP
371 * This symbol, if defined, indicates that the getgrnam() and
372 * getgrgid() routines are available to get group entries.
373 * The getgrent() has a separate definition, HAS_GETGRENT.
374 */
375#undef HAS_GROUP /**/
376
377/* HAS_PASSWD
378 * This symbol, if defined, indicates that the getpwnam() and
379 * getpwuid() routines are available to get password entries.
380 * The getpwent() has a separate definition, HAS_GETPWENT.
381 */
382#define HAS_PASSWD /**/
383
384#define HAS_KILL
385#define HAS_WAIT
386
387/* USEMYBINMODE
388 * This symbol, if defined, indicates that the program should
389 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
390 * that a file is in "binary" mode -- that is, that no translation
391 * of bytes occurs on read or write operations.
392 */
393#undef USEMYBINMODE
394
395/* Stat_t:
396 * This symbol holds the type used to declare buffers for information
397 * returned by stat(). It's usually just struct stat. It may be necessary
398 * to include <sys/stat.h> and <sys/types.h> to get any typedef'ed
399 * information.
400 */
401/* VMS:
402 * We need this typedef to point to the new type even if DONT_MASK_RTL_CALLS
403 * is in effect, since Perl's thread.h embeds one of these structs in its
404 * thread data struct, and our struct mystat is a different size from the
405 * regular struct stat (cf. note above about having to pad struct to work
406 * around bug in compiler.)
407 * It's OK to pass one of these to the RTL's stat(), though, since the
408 * fields it fills are the same in each struct.
409 */
410#define Stat_t struct mystat
411
412/* USE_STAT_RDEV:
413* This symbol is defined if this system has a stat structure declaring
414* st_rdev
415* VMS: Field exists in POSIXish version of struct stat(), but is not used.
416*/
417#undef USE_STAT_RDEV /**/
418
419/*
420 * fwrite1() should be a routine with the same calling sequence as fwrite(),
421 * but which outputs all of the bytes requested as a single stream (unlike
422 * fwrite() itself, which on some systems outputs several distinct records
423 * if the number_of_items parameter is >1).
424 */
425#define fwrite1 my_fwrite
426
427
428#ifndef DONT_MASK_RTL_CALLS
429# define fwrite my_fwrite /* for PerlSIO_fwrite */
430# define fdopen my_fdopen
431# define fclose my_fclose
432#endif
433
434
435/* By default, flush data all the way to disk, not just to RMS buffers */
436#define Fflush(fp) my_flush(fp)
437
438/* Use our own rmdir() */
439#define rmdir(name) do_rmdir(name)
440
441/* Assorted fiddling with sigs . . . */
442# include <signal.h>
443#define ABORT() abort()
444
445/* Used with our my_utime() routine in vms.c */
446struct utimbuf {
447 time_t actime;
448 time_t modtime;
449};
450#define utime my_utime
451
452/* This is what times() returns, but <times.h> calls it tbuffer_t on VMS
453 * prior to v7.0. We check the DECC manifest to see whether it's already
454 * done this for us, relying on the fact that perl.h #includes <time.h>
455 * before it #includes "vmsish.h".
456 */
457
458#ifndef __TMS
459 struct tms {
460 clock_t tms_utime; /* user time */
461 clock_t tms_stime; /* system time - always 0 on VMS */
462 clock_t tms_cutime; /* user time, children */
463 clock_t tms_cstime; /* system time, children - always 0 on VMS */
464 };
465#else
466 /* The new headers change the times() prototype to tms from tbuffer */
467# define tbuffer_t struct tms
468#endif
469
470/* Substitute our own routines for gmtime(), localtime(), and time(),
471 * which allow us to implement the vmsish 'time' pragma, and work
472 * around absence of system-level UTC support on old versions of VMS.
473 */
474#define gmtime(t) my_gmtime(t)
475#define localtime(t) my_localtime(t)
476#define time(t) my_time(t)
477
478/* If we're using an older version of VMS whose Unix signal emulation
479 * isn't very POSIXish, then roll our own.
480 */
481#if __VMS_VER < 70000000 || __DECC_VER < 50200000
482# define HOMEGROWN_POSIX_SIGNALS
483#endif
484#ifdef HOMEGROWN_POSIX_SIGNALS
485# define sigemptyset(t) my_sigemptyset(t)
486# define sigfillset(t) my_sigfillset(t)
487# define sigaddset(t, u) my_sigaddset(t, u)
488# define sigdelset(t, u) my_sigdelset(t, u)
489# define sigismember(t, u) my_sigismember(t, u)
490# define sigprocmask(t, u, v) my_sigprocmask(t, u, v)
491# ifndef _SIGSET_T
492 typedef int sigset_t;
493# endif
494 /* The tools for sigprocmask() are there, just not the routine itself */
495# ifndef SIG_UNBLOCK
496# define SIG_UNBLOCK 1
497# endif
498# ifndef SIG_BLOCK
499# define SIG_BLOCK 2
500# endif
501# ifndef SIG_SETMASK
502# define SIG_SETMASK 3
503# endif
504# define sigaction sigvec
505# define sa_flags sv_onstack
506# define sa_handler sv_handler
507# define sa_mask sv_mask
508# define sigsuspend(set) sigpause(*set)
509# define sigpending(a) (not_here("sigpending"),0)
510#else
511/*
512 * The C RTL's sigaction fails to check for invalid signal numbers so we
513 * help it out a bit.
514 */
515# ifndef DONT_MASK_RTL_CALLS
516# define sigaction(a,b,c) Perl_my_sigaction(aTHX_ a,b,c)
517# endif
518#endif
519#ifdef KILL_BY_SIGPRC
520# define kill Perl_my_kill
521#endif
522
523
524/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
525 * messages in text strings . . .
526 */
527
528#define sys_nerr EVMSERR /* EVMSERR is as high as we can go. */
529
530/* Look up new %ENV values on the fly */
531#define DYNAMIC_ENV_FETCH 1
532 /* Special getenv function for retrieving %ENV elements. */
533#define ENVgetenv(v) my_getenv(v,FALSE)
534#define ENVgetenv_len(v,l) my_getenv_len(v,l,FALSE)
535
536
537/* Thin jacket around cuserid() to match Unix' calling sequence */
538#define getlogin my_getlogin
539
540/* Ditto for sys$hash_password() . . . */
541#define crypt(a,b) Perl_my_crypt(aTHX_ a,b)
542
543/* Tweak arg to mkdir & chdir first, so we can tolerate trailing /. */
544#define Mkdir(dir,mode) Perl_my_mkdir(aTHX_ (dir),(mode))
545#define Chdir(dir) my_chdir((dir))
546
547/* Use our own stat() clones, which handle Unix-style directory names */
548#define Stat(name,bufptr) flex_stat(name,bufptr)
549#define Fstat(fd,bufptr) Perl_flex_fstat(aTHX_ fd,bufptr)
550
551/* Setup for the dirent routines:
552 * opendir(), closedir(), readdir(), seekdir(), telldir(), and
553 * vmsreaddirversions(), and preprocessor stuff on which these depend:
554 * Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
555 */
556 /* Data structure returned by READDIR(). */
557struct dirent {
558 char d_name[256]; /* File name */
559 int d_namlen; /* Length of d_name */
560 int vms_verscount; /* Number of versions */
561 int vms_versions[20]; /* Version numbers */
562};
563
564 /* Handle returned by opendir(), used by the other routines. You
565 * are not supposed to care what's inside this structure. */
566typedef struct _dirdesc {
567 long context;
568 int vms_wantversions;
569 unsigned long int count;
570 char *pattern;
571 struct dirent entry;
572 struct dsc$descriptor_s pat;
573 void *mutex;
574} DIR;
575
576#define rewinddir(dirp) seekdir((dirp), 0)
577
578/* used for our emulation of getpw* */
579struct passwd {
580 char *pw_name; /* Username */
581 char *pw_passwd;
582 Uid_t pw_uid; /* UIC member number */
583 Gid_t pw_gid; /* UIC group number */
584 char *pw_comment; /* Default device/directory (Unix-style) */
585 char *pw_gecos; /* Owner */
586 char *pw_dir; /* Default device/directory (VMS-style) */
587 char *pw_shell; /* Default CLI name (eg. DCL) */
588};
589#define pw_unixdir pw_comment /* Default device/directory (Unix-style) */
590#define getpwnam my_getpwnam
591#define getpwuid my_getpwuid
592#define getpwent my_getpwent
593#define endpwent my_endpwent
594#define setpwent my_endpwent
595
596/* Our own stat_t substitute, since we play with st_dev and st_ino -
597 * we want atomic types so Unix-bound code which compares these fields
598 * for two files will work most of the time under VMS.
599 * N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
600 * sizeof(unsigned) + sizeof(unsigned short). We can't use a union type
601 * to map the unsigned int we want and the unsigned short[3] the CRTL
602 * returns into the same member, since gcc has different ideas than DECC
603 * and VAXC about sizing union types.
604 * N.B. 2. The routine cando() in vms.c assumes that &stat.st_ino is the
605 * address of a FID.
606 */
607/* First, grab the system types, so we don't clobber them later */
608#include <stat.h>
609/* Since we've got to match the size of the CRTL's stat_t, we need
610 * to mimic DECC's alignment settings.
611 */
612#ifdef USE_LARGE_FILES
613/* Mimic the new stat structure, filler fields, and alignment. */
614#if defined(__DECC) || defined(__DECCXX)
615# pragma __member_alignment __save
616# pragma member_alignment
617#endif
618
619struct mystat
620{
621 char *st_devnam; /* pointer to device name */
622 char *st_fill_dev;
623 unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
624 unsigned short rvn; /* FID (num,seq,rvn) */
625 unsigned short st_fill_ino;
626 unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
627 unsigned short st_fill_mode;
628 int st_nlink; /* for compatibility - not really used */
629 unsigned st_uid; /* from ACP - QIO uic field */
630 unsigned short st_gid; /* group number extracted from st_uid */
631 unsigned short st_fill_gid;
632 dev_t st_rdev; /* for compatibility - always zero */
633 off_t st_size; /* file size in bytes */
634 unsigned st_atime; /* file access time; always same as st_mtime */
635 unsigned st_fill_atime;
636 unsigned st_mtime; /* last modification time */
637 unsigned st_fill_mtime;
638 unsigned st_ctime; /* file creation time */
639 unsigned st_fill_ctime;
640 char st_fab_rfm; /* record format */
641 char st_fab_rat; /* record attributes */
642 char st_fab_fsz; /* fixed header size */
643 char st_fab_fill;
644 unsigned st_fab_mrs; /* record size */
645 int st_fill_expand[7]; /* will probably fill from beginning, so put our st_dev at end */
646 unsigned st_dev; /* encoded device name */
647};
648
649#else /* !defined(USE_LARGE_FILES) */
650
651#if defined(__DECC) || defined(__DECCXX)
652# pragma __member_alignment __save
653# pragma __nomember_alignment
654#endif
655#if defined(__DECC)
656# pragma __message __save
657# pragma __message disable (__MISALGNDSTRCT)
658# pragma __message disable (__MISALGNDMEM)
659#endif
660
661struct mystat
662{
663 char *st_devnam; /* pointer to device name */
664 unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
665 unsigned short rvn; /* FID (num,seq,rvn) */
666 unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
667 int st_nlink; /* for compatibility - not really used */
668 unsigned st_uid; /* from ACP - QIO uic field */
669 unsigned short st_gid; /* group number extracted from st_uid */
670 dev_t st_rdev; /* for compatibility - always zero */
671 off_t st_size; /* file size in bytes */
672 unsigned st_atime; /* file access time; always same as st_mtime */
673 unsigned st_mtime; /* last modification time */
674 unsigned st_ctime; /* file creation time */
675 char st_fab_rfm; /* record format */
676 char st_fab_rat; /* record attributes */
677 char st_fab_fsz; /* fixed header size */
678 unsigned st_dev; /* encoded device name */
679 /* Pad struct out to integral number of longwords, since DECC 5.6/VAX
680 * has a bug in dealing with offsets in structs in which are embedded
681 * other structs whose size is an odd number of bytes. (An even
682 * number of bytes is enough to make it happy, but we go for natural
683 * alignment anyhow.)
684 */
685 char st_fill1[sizeof(void *) - (3*sizeof(unsigned short) + 3*sizeof(char))%sizeof(void *)];
686};
687
688#if defined(__DECC)
689# pragma __message __restore
690#endif
691
692#endif /* defined(USE_LARGE_FILES) */
693
694#if defined(__DECC) || defined(__DECCXX)
695# pragma __member_alignment __restore
696#endif
697
698typedef unsigned mydev_t;
699typedef unsigned myino_t;
700
701/*
702 * DEC C previous to 6.0 corrupts the behavior of the /prefix
703 * qualifier with the extern prefix pragma. This provisional
704 * hack circumvents this prefix pragma problem in previous
705 * precompilers.
706 */
707#if defined(__VMS_VER) && __VMS_VER >= 70000000
708# if defined(VMS_WE_ARE_CASE_SENSITIVE) && (__DECC_VER < 60000000)
709# pragma __extern_prefix save
710# pragma __extern_prefix "" /* set to empty to prevent prefixing */
711# define geteuid decc$__unix_geteuid
712# define getuid decc$__unix_getuid
713# define stat(__p1,__p2) decc$__utc_stat(__p1,__p2)
714# define fstat(__p1,__p2) decc$__utc_fstat(__p1,__p2)
715# pragma __extern_prefix restore
716# endif
717#endif
718
719#ifndef DONT_MASK_RTL_CALLS /* defined for vms.c so we can see RTL calls */
720# ifdef stat
721# undef stat
722# endif
723# define stat mystat
724# define dev_t mydev_t
725# define ino_t myino_t
726#endif
727/* Cons up a 'delete' bit for testing access */
728#define S_IDUSR (S_IWUSR | S_IXUSR)
729#define S_IDGRP (S_IWGRP | S_IXGRP)
730#define S_IDOTH (S_IWOTH | S_IXOTH)
731
732
733/* Prototypes for functions unique to vms.c. Don't include replacements
734 * for routines in the mainline source files excluded by #ifndef VMS;
735 * their prototypes are already in proto.h.
736 *
737 * In order to keep Gen_ShrFls.Pl happy, functions which are to be made
738 * available to images linked to PerlShr.Exe must be declared between the
739 * __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
740 * <data type><TAB>name<WHITESPACE>(<prototype args>);
741 */
742
743#ifdef NO_PERL_TYPEDEFS
744 /* We don't have Perl typedefs available (e.g. when building a2p), so
745 we fake them here. N.B. There is *no* guarantee that the faked
746 prototypes will actually match the real routines. If you want to
747 call Perl routines, include perl.h to get the real typedefs. */
748# ifndef bool
749# define bool int
750# define __MY_BOOL_TYPE_FAKE
751# endif
752# ifndef I32
753# define I32 int
754# define __MY_I32_TYPE_FAKE
755# endif
756# ifndef SV
757# define SV void /* Since we only see SV * in prototypes */
758# define __MY_SV_TYPE_FAKE
759# endif
760#endif
761
762void prime_env_iter (void);
763void init_os_extras ();
764/* prototype section start marker; `typedef' passes through cpp */
765typedef char __VMS_PROTOTYPES__;
766int Perl_vmstrnenv (const char *, char *, unsigned long int, struct dsc$descriptor_s **, unsigned long int);
767#if !defined(PERL_IMPLICIT_CONTEXT)
768char * Perl_my_getenv (const char *, bool);
769int Perl_my_trnlnm (const char *, char *, unsigned long int);
770char * Perl_tounixspec (char *, char *);
771char * Perl_tounixspec_ts (char *, char *);
772char * Perl_tovmsspec (char *, char *);
773char * Perl_tovmsspec_ts (char *, char *);
774char * Perl_tounixpath (char *, char *);
775char * Perl_tounixpath_ts (char *, char *);
776char * Perl_tovmspath (char *, char *);
777char * Perl_tovmspath_ts (char *, char *);
778int Perl_do_rmdir (char *);
779char * Perl_fileify_dirspec (char *, char *);
780char * Perl_fileify_dirspec_ts (char *, char *);
781char * Perl_pathify_dirspec (char *, char *);
782char * Perl_pathify_dirspec_ts (char *, char *);
783char * Perl_rmsexpand (char *, char *, char *, unsigned);
784char * Perl_rmsexpand_ts (char *, char *, char *, unsigned);
785int Perl_trim_unixpath (char *, char*, int);
786DIR * Perl_opendir (char *);
787int Perl_rmscopy (char *, char *, int);
788int Perl_my_mkdir (char *, Mode_t);
789bool Perl_vms_do_aexec (SV *, SV **, SV **);
790#else
791char * Perl_my_getenv (pTHX_ const char *, bool);
792int Perl_my_trnlnm (pTHX_ const char *, char *, unsigned long int);
793char * Perl_tounixspec (pTHX_ char *, char *);
794char * Perl_tounixspec_ts (pTHX_ char *, char *);
795char * Perl_tovmsspec (pTHX_ char *, char *);
796char * Perl_tovmsspec_ts (pTHX_ char *, char *);
797char * Perl_tounixpath (pTHX_ char *, char *);
798char * Perl_tounixpath_ts (pTHX_ char *, char *);
799char * Perl_tovmspath (pTHX_ char *, char *);
800char * Perl_tovmspath_ts (pTHX_ char *, char *);
801int Perl_do_rmdir (pTHX_ char *);
802char * Perl_fileify_dirspec (pTHX_ char *, char *);
803char * Perl_fileify_dirspec_ts (pTHX_ char *, char *);
804char * Perl_pathify_dirspec (pTHX_ char *, char *);
805char * Perl_pathify_dirspec_ts (pTHX_ char *, char *);
806char * Perl_rmsexpand (pTHX_ char *, char *, char *, unsigned);
807char * Perl_rmsexpand_ts (pTHX_ char *, char *, char *, unsigned);
808int Perl_trim_unixpath (pTHX_ char *, char*, int);
809DIR * Perl_opendir (pTHX_ char *);
810int Perl_rmscopy (pTHX_ char *, char *, int);
811int Perl_my_mkdir (pTHX_ char *, Mode_t);
812bool Perl_vms_do_aexec (pTHX_ SV *, SV **, SV **);
813#endif
814char * Perl_my_getenv_len (pTHX_ const char *, unsigned long *, bool);
815int Perl_vmssetenv (pTHX_ char *, char *, struct dsc$descriptor_s **);
816void Perl_vmssetuserlnm(pTHX_ char *name, char *eqv);
817char * Perl_my_crypt (pTHX_ const char *, const char *);
818Pid_t Perl_my_waitpid (pTHX_ Pid_t, int *, int);
819char * my_gconvert (double, int, int, char *);
820int Perl_kill_file (pTHX_ char *);
821int Perl_my_chdir (pTHX_ char *);
822FILE * Perl_my_tmpfile ();
823#ifndef HOMEGROWN_POSIX_SIGNALS
824int Perl_my_sigaction (pTHX_ int, const struct sigaction*, struct sigaction*);
825#endif
826#ifdef KILL_BY_SIGPRC
827unsigned int Perl_sig_to_vmscondition (int);
828int Perl_my_kill (int, int);
829void Perl_csighandler_init (void);
830#endif
831int Perl_my_utime (pTHX_ char *, struct utimbuf *);
832void Perl_vms_image_init (int *, char ***);
833struct dirent * Perl_readdir (pTHX_ DIR *);
834int Perl_readdir_r(pTHX_ DIR *, struct dirent *, struct dirent **);
835long telldir (DIR *);
836void Perl_seekdir (pTHX_ DIR *, long);
837void closedir (DIR *);
838void vmsreaddirversions (DIR *, int);
839struct tm * Perl_my_gmtime (pTHX_ const time_t *);
840struct tm * Perl_my_localtime (pTHX_ const time_t *);
841time_t Perl_my_time (pTHX_ time_t *);
842#ifdef HOMEGROWN_POSIX_SIGNALS
843int my_sigemptyset (sigset_t *);
844int my_sigfillset (sigset_t *);
845int my_sigaddset (sigset_t *, int);
846int my_sigdelset (sigset_t *, int);
847int my_sigismember (sigset_t *, int);
848int my_sigprocmask (int, sigset_t *, sigset_t *);
849#endif
850I32 Perl_cando_by_name (pTHX_ I32, Uid_t, char *);
851int Perl_flex_fstat (pTHX_ int, Stat_t *);
852int Perl_flex_stat (pTHX_ const char *, Stat_t *);
853int my_vfork ();
854bool Perl_vms_do_exec (pTHX_ char *);
855unsigned long int Perl_do_aspawn (pTHX_ void *, void **, void **);
856unsigned long int Perl_do_spawn (pTHX_ char *);
857FILE * my_fdopen (int, const char *);
858int my_fclose (FILE *);
859int my_fwrite (const void *, size_t, size_t, FILE *);
860int Perl_my_flush (pTHX_ FILE *);
861struct passwd * Perl_my_getpwnam (pTHX_ char *name);
862struct passwd * Perl_my_getpwuid (pTHX_ Uid_t uid);
863void Perl_my_endpwent (pTHX);
864char * my_getlogin (void);
865typedef char __VMS_SEPYTOTORP__;
866/* prototype section end marker; `typedef' passes through cpp */
867
868#ifdef NO_PERL_TYPEDEFS /* We'll try not to scramble later files */
869# ifdef __MY_BOOL_TYPE_FAKE
870# undef bool
871# undef __MY_BOOL_TYPE_FAKE
872# endif
873# ifdef __MY_I32_TYPE_FAKE
874# undef I32
875# undef __MY_I32_TYPE_FAKE
876# endif
877# ifdef __MY_SV_TYPE_FAKE
878# undef SV
879# undef __MY_SV_TYPE_FAKE
880# endif
881#endif
882
883#ifndef VMS_DO_SOCKETS
884/* This relies on tricks in perl.h to pick up that these manifest constants
885 * are undefined and set up conversion routines. It will then redefine
886 * these manifest constants, so the actual values will match config.h
887 */
888#undef HAS_HTONS
889#undef HAS_NTOHS
890#undef HAS_HTONL
891#undef HAS_NTOHL
892#endif
893
894/* The C RTL manual says to undef the macro for DEC C 5.2 and lower. */
895#if defined(fileno) && defined(__DECC_VER) && __DECC_VER < 50300000
896# undef fileno
897#endif
898
899#define NO_ENVIRON_ARRAY
900
901#endif /* __vmsish_h_included */
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