This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
workaround for CRT bug in chdir() (from Charles Lane, via
[perl5.git] / vms / vmsish.h
CommitLineData
a0d0e21e
LW
1/* vmsish.h
2 *
3 * VMS-specific C header file for perl5.
4 *
562a7b0c
CB
5 * Last revised: 16-Sep-1998 by Charles Bailey bailey@newman.upenn.edu
6 * Version: 5.5.2
a0d0e21e
LW
7 */
8
9#ifndef __vmsish_h_included
10#define __vmsish_h_included
11
12#include <descrip.h> /* for dirent struct definitions */
748a9306
LW
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 */
4fdae800 16#include <stsdef.h> /* bitmasks for exit status testing */
748a9306 17
4633a7c4 18/* Suppress compiler warnings from DECC for VMS-specific extensions:
e518068a
PP
19 * ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
20 * (e.g. pointer fields of descriptors)
21 */
22#ifdef __DECC
17f28c40 23# pragma message disable (ADDRCONSTEXT,NEEDCONSTEXT)
e518068a
PP
24#endif
25
748a9306
LW
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
LW
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
LW
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
LW
50#include <processes.h> /* for vfork() */
51#include <unixio.h>
a0d0e21e
LW
52#include <unixlib.h>
53#include <file.h> /* it's not <sys/file.h>, so don't use I_SYS_FILE */
774d564b 54#if defined(__DECC) && defined(__DECC_VER) && __DECC_VER > 20000000
bbce6d69
PP
55# include <unistd.h> /* DECC has this; VAXC and gcc don't */
56#endif
bf109933 57
09b7f37c
CB
58/* VAXC doesn't have a unary plus operator, so we need to get there indirectly */
59#if defined(VAXC) && !defined(__DECC)
60# define NO_UNARY_PLUS
61#endif
62
aa689395
PP
63#ifdef NO_PERL_TYPEDEFS /* a2p; we don't want Perl's special routines */
64# define DONT_MASK_RTL_CALLS
65#endif
66
562a7b0c
CB
67/* Note that we do, in fact, have this */
68#define HAS_GETENV_SV
cc077a9f 69#define HAS_GETENV_LEN
562a7b0c 70
aa689395
PP
71#ifndef DONT_MASK_RTL_CALLS
72# ifdef getenv
73# undef getenv
74# endif
562a7b0c
CB
75 /* getenv used for regular logical names */
76# define getenv(v) my_getenv(v,TRUE)
aa689395 77#endif
19c10e8f
CB
78#ifdef getenv_len
79# undef getenv_len
80#endif
a6c40364 81#define getenv_len(v,l) my_getenv_len(v,l,TRUE)
aa689395 82
4fdae800
PP
83/* DECC introduces this routine in the RTL as of VMS 7.0; for now,
84 * we'll use ours, since it gives us the full VMS exit status. */
4fdae800
PP
85#define waitpid my_waitpid
86
61bb5906
CB
87/* Don't redeclare standard RTL routines in Perl's header files;
88 * VMS history or extensions makes some of the formal protoypes
89 * differ from the common Unix forms.
90 */
91#define DONT_DECLARE_STD 1
92
bf109933 93/* Our own contribution to PerlShr's global symbols . . . */
562a7b0c
CB
94#define vmstrnenv Perl_vmstrnenv
95#define my_trnlnm Perl_my_trnlnm
a6c40364 96#define my_getenv_len Perl_my_getenv_len
562a7b0c
CB
97#define prime_env_iter Perl_prime_env_iter
98#define vmssetenv Perl_vmssetenv
5c84aa53 99#if !defined(PERL_IMPLICIT_CONTEXT)
562a7b0c 100#define my_setenv Perl_my_setenv
5c84aa53
CB
101#define my_getenv Perl_my_getenv
102#else
103#define my_setenv(a,b) Perl_my_setenv(aTHX_ a,b)
104#define my_getenv(a,b) Perl_my_getenv(aTHX_ a,b)
105#endif
562a7b0c
CB
106#define my_crypt Perl_my_crypt
107#define my_waitpid Perl_my_waitpid
108#define my_gconvert Perl_my_gconvert
109#define do_rmdir Perl_do_rmdir
110#define kill_file Perl_kill_file
111#define my_mkdir Perl_my_mkdir
101e5167 112#define my_chdir Perl_my_chdir
562a7b0c
CB
113#define my_utime Perl_my_utime
114#define rmsexpand Perl_rmsexpand
115#define rmsexpand_ts Perl_rmsexpand_ts
116#define fileify_dirspec Perl_fileify_dirspec
117#define fileify_dirspec_ts Perl_fileify_dirspec_ts
118#define pathify_dirspec Perl_pathify_dirspec
119#define pathify_dirspec_ts Perl_pathify_dirspec_ts
120#define tounixspec Perl_tounixspec
121#define tounixspec_ts Perl_tounixspec_ts
122#define tovmsspec Perl_tovmsspec
123#define tovmsspec_ts Perl_tovmsspec_ts
124#define tounixpath Perl_tounixpath
125#define tounixpath_ts Perl_tounixpath_ts
126#define tovmspath Perl_tovmspath
127#define tovmspath_ts Perl_tovmspath_ts
128#define vms_image_init Perl_vms_image_init
129#define opendir Perl_opendir
130#define readdir Perl_readdir
131#define telldir Perl_telldir
132#define seekdir Perl_seekdir
133#define closedir Perl_closedir
134#define vmsreaddirversions Perl_vmsreaddirversions
135#define my_gmtime Perl_my_gmtime
136#define my_localtime Perl_my_localtime
137#define my_time Perl_my_time
138#define my_sigemptyset Perl_my_sigemptyset
139#define my_sigfillset Perl_my_sigfillset
140#define my_sigaddset Perl_my_sigaddset
141#define my_sigdelset Perl_my_sigdelset
142#define my_sigismember Perl_my_sigismember
143#define my_sigprocmask Perl_my_sigprocmask
144#define cando_by_name Perl_cando_by_name
145#define flex_fstat Perl_flex_fstat
146#define flex_stat Perl_flex_stat
147#define trim_unixpath Perl_trim_unixpath
148#define my_vfork Perl_my_vfork
149#define vms_do_aexec Perl_vms_do_aexec
150#define vms_do_exec Perl_vms_do_exec
151#define do_aspawn Perl_do_aspawn
152#define do_spawn Perl_do_spawn
153#define my_fwrite Perl_my_fwrite
154#define my_flush Perl_my_flush
155#define my_getpwnam Perl_my_getpwnam
156#define my_getpwuid Perl_my_getpwuid
157#define my_getpwent Perl_my_getpwent
158#define my_endpwent Perl_my_endpwent
159#define my_getlogin Perl_my_getlogin
160#define rmscopy Perl_rmscopy
161#define init_os_extras Perl_init_os_extras
bf109933
PP
162
163/* Delete if at all possible, changing protections if necessary. */
748a9306
LW
164#define unlink kill_file
165
0414b1a0
PP
166/*
167 * Intercept calls to fork, so we know whether subsequent calls to
168 * exec should be handled in VMSish or Unixish style.
169 */
170#define fork my_vfork
aa689395 171#ifndef DONT_MASK_RTL_CALLS /* #defined in vms.c so we see real vfork */
0414b1a0
PP
172# ifdef vfork
173# undef vfork
174# endif
175# define vfork my_vfork
176#endif
177
178/* BIG_TIME:
179 * This symbol is defined if Time_t is an unsigned type on this system.
180 */
181#define BIG_TIME
182
0414b1a0
PP
183/* ACME_MESS:
184 * This symbol, if defined, indicates that error messages should be
185 * should be generated in a format that allows the use of the Acme
186 * GUI/editor's autofind feature.
187 */
188#undef ACME_MESS /**/
e518068a 189
44a8e56a
PP
190/* ALTERNATE_SHEBANG:
191 * This symbol, if defined, contains a "magic" string which may be used
192 * as the first line of a Perl program designed to be executed directly
193 * by name, instead of the standard Unix #!. If ALTERNATE_SHEBANG
194 * begins with a character other then #, then Perl will only treat
195 * it as a command line if if finds the string "perl" in the first
196 * word; otherwise it's treated as the first line of code in the script.
197 * (IOW, Perl won't hand off to another interpreter via an alternate
198 * shebang sequence that might be legal Perl code.)
199 */
200#define ALTERNATE_SHEBANG "$"
201
a44ceb8e
CB
202/* Lower case entry points for these are missing in some earlier RTLs
203 * so we borrow the defines and declares from errno.h and upcase them.
204 */
205#if defined(VMS_WE_ARE_CASE_SENSITIVE) && (__DECC_VER < 50500000)
206# define errno (*CMA$TIS_ERRNO_GET_ADDR())
207# define vaxc$errno (*CMA$TIS_VMSERRNO_GET_ADDR())
208 int *CMA$TIS_ERRNO_GET_ADDR (void); /* UNIX style error code */
209 int *CMA$TIS_VMSERRNO_GET_ADDR (void); /* VMS error (errno == EVMSERR) */
210#endif
211
748a9306
LW
212/* Macros to set errno using the VAX thread-safe calls, if present */
213#if (defined(__DECC) || defined(__DECCXX)) && !defined(__ALPHA)
214# define set_errno(v) (cma$tis_errno_set_value(v))
774d564b 215 void cma$tis_errno_set_value(int __value); /* missing in some errno.h */
748a9306
LW
216# define set_vaxc_errno(v) (vaxc$errno = (v))
217#else
218# define set_errno(v) (errno = (v))
219# define set_vaxc_errno(v) (vaxc$errno = (v))
220#endif
221
ff0cee69
PP
222/* Support for 'vmsish' behaviors enabled with C<use vmsish> pragma */
223
224#define COMPLEX_STATUS 1 /* We track both "POSIX" and VMS values */
225
aa689395 226#define HINT_V_VMSISH 24
d98f61e7
GS
227#define HINT_M_VMSISH_HUSHED 0x20000000 /* stifle error msgs on exit */
228#define HINT_M_VMSISH_STATUS 0x40000000 /* system, $? return VMS status */
a0ed51b3 229#define HINT_M_VMSISH_TIME 0x80000000 /* times are local, not UTC */
6b88bc9c 230#define NATIVE_HINTS (PL_hints >> HINT_V_VMSISH) /* used in op.c */
ff0cee69 231
6b88bc9c 232#define TEST_VMSISH(h) (PL_curcop->op_private & ((h) >> HINT_V_VMSISH))
d98f61e7 233#define VMSISH_HUSHED TEST_VMSISH(HINT_M_VMSISH_HUSHED)
ff0cee69 234#define VMSISH_STATUS TEST_VMSISH(HINT_M_VMSISH_STATUS)
ff0cee69
PP
235#define VMSISH_TIME TEST_VMSISH(HINT_M_VMSISH_TIME)
236
562a7b0c
CB
237/* Flags for vmstrnenv() */
238#define PERL__TRNENV_SECURE 0x01
239
748a9306 240/* Handy way to vet calls to VMS system services and RTL routines. */
bf109933 241#define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
748a9306
LW
242 if (!((__ckvms_sts=(call))&1)) { \
243 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
5c84aa53 244 Perl_croak(aTHX_ "Fatal VMS error (status=%d) at %s, line %d", \
bf109933 245 __ckvms_sts,__FILE__,__LINE__); } } STMT_END
a0d0e21e 246
0414b1a0
PP
247/* Same thing, but don't call back to Perl's croak(); useful for errors
248 * occurring during startup, before Perl's state is initialized */
249#define _ckvmssts_noperl(call) STMT_START { register unsigned long int __ckvms_sts; \
250 if (!((__ckvms_sts=(call))&1)) { \
251 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
252 fprintf(Perl_debug_log,"Fatal VMS error (status=%d) at %s, line %d", \
253 __ckvms_sts,__FILE__,__LINE__); lib$signal(__ckvms_sts); } } STMT_END
254
a0d0e21e
LW
255#ifdef VMS_DO_SOCKETS
256#include "sockadapt.h"
257#endif
258
c07a80fd 259#define BIT_BUCKET "_NLA0:"
fc1ce8cc 260#define PERL_SYS_INIT(c,v) vms_image_init((c),(v)); MALLOC_INIT
534825c4 261#define PERL_SYS_TERM() OP_REFCNT_TERM; MALLOC_TERM
8cc95fdb 262#define dXSUB_SYS
a0d0e21e
LW
263#define HAS_KILL
264#define HAS_WAIT
265
146174a9 266#define PERL_FS_VER_FMT "%d_%d_%d"
c93fa817
GS
267/* Temporary; we need to add support for this to Configure.Com */
268#ifdef PERL_INC_VERSION_LIST
269# undef PERL_INC_VERSION_LIST
270#endif
146174a9 271
e518068a
PP
272/* VMS:
273 * This symbol, if defined, indicates that the program is running under
274 * VMS. It's a symbol automagically defined by all VMS C compilers I've seen.
275 * Just in case, however . . . */
276#ifndef VMS
277#define VMS /**/
278#endif
279
280/* HAS_IOCTL:
281 * This symbol, if defined, indicates that the ioctl() routine is
282 * available to set I/O characteristics
a0d0e21e 283 */
e518068a
PP
284#undef HAS_IOCTL /**/
285
286/* HAS_UTIME:
287 * This symbol, if defined, indicates that the routine utime() is
288 * available to update the access and modification times of files.
289 */
290#define HAS_UTIME /**/
a0d0e21e 291
e518068a 292/* HAS_GROUP
28e8609d
JH
293 * This symbol, if defined, indicates that the getgrnam() and
294 * getgrgid() routines are available to get group entries.
295 * The getgrent() has a separate definition, HAS_GETGRENT.
e518068a
PP
296 */
297#undef HAS_GROUP /**/
298
299/* HAS_PASSWD
28e8609d
JH
300 * This symbol, if defined, indicates that the getpwnam() and
301 * getpwuid() routines are available to get password entries.
302 * The getpwent() has a separate definition, HAS_GETPWENT.
e518068a
PP
303 */
304#define HAS_PASSWD /**/
305
306#define HAS_KILL
307#define HAS_WAIT
308
0414b1a0
PP
309/* USEMYBINMODE
310 * This symbol, if defined, indicates that the program should
16fe6d59 311 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
0414b1a0
PP
312 * that a file is in "binary" mode -- that is, that no translation
313 * of bytes occurs on read or write operations.
314 */
562a7b0c 315#undef USEMYBINMODE
0414b1a0 316
61bb5906
CB
317/* Stat_t:
318 * This symbol holds the type used to declare buffers for information
319 * returned by stat(). It's usually just struct stat. It may be necessary
320 * to include <sys/stat.h> and <sys/types.h> to get any typedef'ed
321 * information.
322 */
323/* VMS:
324 * We need this typedef to point to the new type even if DONT_MASK_RTL_CALLS
325 * is in effect, since Perl's thread.h embeds one of these structs in its
326 * thread data struct, and our struct mystat is a different size from the
327 * regular struct stat (cf. note above about having to pad struct to work
328 * around bug in compiler.)
329 * It's OK to pass one of these to the RTL's stat(), though, since the
330 * fields it fills are the same in each struct.
331 */
332#define Stat_t struct mystat
333
334/* USE_STAT_RDEV:
335* This symbol is defined if this system has a stat structure declaring
336* st_rdev
337* VMS: Field exists in POSIXish version of struct stat(), but is not used.
338*/
339#undef USE_STAT_RDEV /**/
340
a0d0e21e
LW
341/*
342 * fwrite1() should be a routine with the same calling sequence as fwrite(),
343 * but which outputs all of the bytes requested as a single stream (unlike
344 * fwrite() itself, which on some systems outputs several distinct records
345 * if the number_of_items parameter is >1).
346 */
347#define fwrite1 my_fwrite
348
d27fe803
JH
349/* By default, flush data all the way to disk, not just to RMS buffers */
350#define Fflush(fp) my_flush(fp)
351
a0d0e21e
LW
352/* Use our own rmdir() */
353#define rmdir(name) do_rmdir(name)
354
355/* Assorted fiddling with sigs . . . */
356# include <signal.h>
357#define ABORT() abort()
5f05dabc
PP
358 /* VAXC's signal.h doesn't #define SIG_ERR, but provides BADSIG instead. */
359#if !defined(SIG_ERR) && defined(BADSIG)
360# define SIG_ERR BADSIG
361#endif
362
a0d0e21e 363
748a9306
LW
364/* Used with our my_utime() routine in vms.c */
365struct utimbuf {
366 time_t actime;
367 time_t modtime;
368};
369#define utime my_utime
370
0414b1a0
PP
371/* This is what times() returns, but <times.h> calls it tbuffer_t on VMS
372 * prior to v7.0. We check the DECC manifest to see whether it's already
373 * done this for us, relying on the fact that perl.h #includes <time.h>
374 * before it #includes "vmsish.h".
375 */
a0d0e21e 376
0414b1a0
PP
377#ifndef __TMS
378 struct tms {
379 clock_t tms_utime; /* user time */
380 clock_t tms_stime; /* system time - always 0 on VMS */
381 clock_t tms_cutime; /* user time, children */
382 clock_t tms_cstime; /* system time, children - always 0 on VMS */
383 };
5f05dabc
PP
384#else
385 /* The new headers change the times() prototype to tms from tbuffer */
386# define tbuffer_t struct tms
0414b1a0 387#endif
a0d0e21e 388
61bb5906
CB
389/* Substitute our own routines for gmtime(), localtime(), and time(),
390 * which allow us to implement the vmsish 'time' pragma, and work
391 * around absence of system-level UTC support on old versions of VMS.
e518068a
PP
392 */
393#define gmtime(t) my_gmtime(t)
ff0cee69
PP
394#define localtime(t) my_localtime(t)
395#define time(t) my_time(t)
61bb5906
CB
396
397/* If we're using an older version of VMS whose Unix signal emulation
398 * isn't very POSIXish, then roll our own.
399 */
400#if __VMS_VER < 70000000 || __DECC_VER < 50200000
401# define HOMEGROWN_POSIX_SIGNALS
402#endif
403#ifdef HOMEGROWN_POSIX_SIGNALS
404# define sigemptyset(t) my_sigemptyset(t)
405# define sigfillset(t) my_sigfillset(t)
406# define sigaddset(t, u) my_sigaddset(t, u)
407# define sigdelset(t, u) my_sigdelset(t, u)
408# define sigismember(t, u) my_sigismember(t, u)
409# define sigprocmask(t, u, v) my_sigprocmask(t, u, v)
09b7f37c 410# ifndef _SIGSET_T
61bb5906 411 typedef int sigset_t;
09b7f37c 412# endif
61bb5906
CB
413 /* The tools for sigprocmask() are there, just not the routine itself */
414# ifndef SIG_UNBLOCK
415# define SIG_UNBLOCK 1
416# endif
417# ifndef SIG_BLOCK
418# define SIG_BLOCK 2
419# endif
420# ifndef SIG_SETMASK
421# define SIG_SETMASK 3
422# endif
423# define sigaction sigvec
424# define sa_flags sv_onstack
425# define sa_handler sv_handler
426# define sa_mask sv_mask
427# define sigsuspend(set) sigpause(*set)
428# define sigpending(a) (not_here("sigpending"),0)
7b62b82b 429#endif
e518068a 430
a0d0e21e
LW
431/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
432 * messages in text strings . . .
433 */
434
435#define sys_nerr EVMSERR /* EVMSERR is as high as we can go. */
436
437/* Look up new %ENV values on the fly */
438#define DYNAMIC_ENV_FETCH 1
439#define ENV_HV_NAME "%EnV%VmS%"
aa689395 440 /* Special getenv function for retrieving %ENV elements. */
562a7b0c 441#define ENVgetenv(v) my_getenv(v,FALSE)
a6c40364 442#define ENVgetenv_len(v,l) my_getenv_len(v,l,FALSE)
aa689395 443
a0d0e21e 444
c07a80fd
PP
445/* Thin jacket around cuserid() tomatch Unix' calling sequence */
446#define getlogin my_getlogin
447
448/* Ditto for sys$hash_passwrod() . . . */
449#define crypt my_crypt
450
101e5167 451/* Tweak arg to mkdir & chdir first, so we can tolerate trailing /. */
8cc95fdb 452#define Mkdir(dir,mode) my_mkdir((dir),(mode))
101e5167 453#define Chdir(dir) my_chdir((dir))
8cc95fdb 454
a0d0e21e
LW
455/* Use our own stat() clones, which handle Unix-style directory names */
456#define Stat(name,bufptr) flex_stat(name,bufptr)
457#define Fstat(fd,bufptr) flex_fstat(fd,bufptr)
458
459/* Setup for the dirent routines:
460 * opendir(), closedir(), readdir(), seekdir(), telldir(), and
461 * vmsreaddirversions(), and preprocessor stuff on which these depend:
462 * Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
a0d0e21e
LW
463 */
464 /* Data structure returned by READDIR(). */
465struct dirent {
466 char d_name[256]; /* File name */
467 int d_namlen; /* Length of d_name */
468 int vms_verscount; /* Number of versions */
469 int vms_versions[20]; /* Version numbers */
470};
471
472 /* Handle returned by opendir(), used by the other routines. You
473 * are not supposed to care what's inside this structure. */
474typedef struct _dirdesc {
475 long context;
476 int vms_wantversions;
477 unsigned long int count;
478 char *pattern;
479 struct dirent entry;
480 struct dsc$descriptor_s pat;
481} DIR;
482
483#define rewinddir(dirp) seekdir((dirp), 0)
484
748a9306
LW
485/* used for our emulation of getpw* */
486struct passwd {
487 char *pw_name; /* Username */
488 char *pw_passwd;
489 Uid_t pw_uid; /* UIC member number */
490 Gid_t pw_gid; /* UIC group number */
491 char *pw_comment; /* Default device/directory (Unix-style) */
492 char *pw_gecos; /* Owner */
493 char *pw_dir; /* Default device/directory (VMS-style) */
494 char *pw_shell; /* Default CLI name (eg. DCL) */
495};
496#define pw_unixdir pw_comment /* Default device/directory (Unix-style) */
497#define getpwnam my_getpwnam
498#define getpwuid my_getpwuid
499#define getpwent my_getpwent
500#define endpwent my_endpwent
501#define setpwent my_endpwent
502
503/* Our own stat_t substitute, since we play with st_dev and st_ino -
504 * we want atomic types so Unix-bound code which compares these fields
c07a80fd
PP
505 * for two files will work most of the time under VMS.
506 * N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
507 * sizeof(unsigned) + sizeof(unsigned short). We can't use a union type
508 * to map the unsigned int we want and the unsigned short[3] the CRTL
509 * returns into the same member, since gcc has different ideas than DECC
510 * and VAXC about sizing union types.
511 * N.B 2. The routine cando() in vms.c assumes that &stat.st_ino is the
512 * address of a FID.
748a9306
LW
513 */
514/* First, grab the system types, so we don't clobber them later */
515#include <stat.h>
516/* Since we've got to match the size of the CRTL's stat_t, we need
517 * to mimic DECC's alignment settings.
518 */
519#if defined(__DECC) || defined(__DECCXX)
520# pragma __member_alignment __save
521# pragma __nomember_alignment
522#endif
523#if defined(__DECC)
524# pragma __message __save
525# pragma __message disable (__MISALGNDSTRCT)
526# pragma __message disable (__MISALGNDMEM)
527#endif
528struct mystat
529{
530 char *st_devnam; /* pointer to device name */
c07a80fd
PP
531 unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
532 unsigned short rvn; /* FID (num,seq,rvn) */
748a9306
LW
533 unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
534 int st_nlink; /* for compatibility - not really used */
535 unsigned st_uid; /* from ACP - QIO uic field */
536 unsigned short st_gid; /* group number extracted from st_uid */
537 dev_t st_rdev; /* for compatibility - always zero */
538 off_t st_size; /* file size in bytes */
539 unsigned st_atime; /* file access time; always same as st_mtime */
540 unsigned st_mtime; /* last modification time */
541 unsigned st_ctime; /* file creation time */
542 char st_fab_rfm; /* record format */
543 char st_fab_rat; /* record attributes */
544 char st_fab_fsz; /* fixed header size */
545 unsigned st_dev; /* encoded device name */
61bb5906
CB
546 /* Pad struct out to integral number of longwords, since DECC 5.6/VAX
547 * has a bug in dealing with offsets in structs in which are embedded
548 * other structs whose size is an odd number of bytes. (An even
549 * number of bytes is enough to make it happy, but we go for natural
550 * alignment anyhow.)
551 */
552 char st_fill1[sizeof(void *) - (3*sizeof(unsigned short) + 3*sizeof(char))%sizeof(void *)];
748a9306 553};
748a9306 554typedef unsigned mydev_t;
c07a80fd 555typedef unsigned myino_t;
a44ceb8e
CB
556
557/*
558 * DEC C previous to 6.0 corrupts the behavior of the /prefix
559 * qualifier with the extern prefix pragma. This provisional
560 * hack circumvents this prefix pragma problem in previous
561 * precompilers.
562 */
563#if defined(__VMS_VER) && __VMS_VER >= 70000000
564# if defined(VMS_WE_ARE_CASE_SENSITIVE) && (__DECC_VER < 60000000)
565# pragma __extern_prefix save
566# pragma __extern_prefix "" /* set to empty to prevent prefixing */
567# define geteuid decc$__unix_geteuid
568# define getuid decc$__unix_getuid
569# define stat(__p1,__p2) decc$__utc_stat(__p1,__p2)
570# define fstat(__p1,__p2) decc$__utc_fstat(__p1,__p2)
571# pragma __extern_prefix restore
572# endif
573#endif
574
aa689395
PP
575#ifndef DONT_MASK_RTL_CALLS /* defined for vms.c so we can see RTL calls */
576# ifdef stat
577# undef stat
578# endif
579# define stat mystat
580# define dev_t mydev_t
581# define ino_t myino_t
582#endif
748a9306
LW
583#if defined(__DECC) || defined(__DECCXX)
584# pragma __member_alignment __restore
585#endif
586#if defined(__DECC)
587# pragma __message __restore
588#endif
589/* Cons up a 'delete' bit for testing access */
590#define S_IDUSR (S_IWUSR | S_IXUSR)
591#define S_IDGRP (S_IWGRP | S_IXGRP)
592#define S_IDOTH (S_IWOTH | S_IXOTH)
a0d0e21e 593
a44ceb8e 594
a0d0e21e
LW
595/* Prototypes for functions unique to vms.c. Don't include replacements
596 * for routines in the mainline source files excluded by #ifndef VMS;
597 * their prototypes are already in proto.h.
598 *
599 * In order to keep Gen_ShrFls.Pl happy, functions which are to be made
600 * available to images linked to PerlShr.Exe must be declared between the
601 * __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
20ce7b12 602 * <data type><TAB>name<WHITESPACE>(<prototype args>);
a0d0e21e 603 */
94c456c4 604
44a8e56a
PP
605#ifdef NO_PERL_TYPEDEFS
606 /* We don't have Perl typedefs available (e.g. when building a2p), so
607 we fake them here. N.B. There is *no* guarantee that the faked
608 prototypes will actually match the real routines. If you want to
609 call Perl routines, include perl.h to get the real typedefs. */
610# ifndef bool
611# define bool int
612# define __MY_BOOL_TYPE_FAKE
613# endif
614# ifndef I32
615# define I32 int
616# define __MY_I32_TYPE_FAKE
617# endif
618# ifndef SV
619# define SV void /* Since we only see SV * in prototypes */
620# define __MY_SV_TYPE_FAKE
621# endif
622#endif
623
20ce7b12
GS
624void prime_env_iter (void);
625void init_os_extras ();
c07a80fd
PP
626/* prototype section start marker; `typedef' passes through cpp */
627typedef char __VMS_PROTOTYPES__;
20ce7b12
GS
628int vmstrnenv (const char *, char *, unsigned long int, struct dsc$descriptor_s **, unsigned long int);
629int my_trnlnm (const char *, char *, unsigned long int);
5c84aa53
CB
630#if !defined(PERL_IMPLICIT_CONTEXT)
631char * Perl_my_getenv (const char *, bool);
632#else
633char * Perl_my_getenv (pTHX_ const char *, bool);
634#endif
20ce7b12
GS
635char * my_getenv_len (const char *, unsigned long *, bool);
636int vmssetenv (char *, char *, struct dsc$descriptor_s **);
637char * my_crypt (const char *, const char *);
638Pid_t my_waitpid (Pid_t, int *, int);
639char * my_gconvert (double, int, int, char *);
640int do_rmdir (char *);
641int kill_file (char *);
642int my_mkdir (char *, Mode_t);
101e5167 643int my_chdir (char *);
20ce7b12
GS
644int my_utime (char *, struct utimbuf *);
645char * rmsexpand (char *, char *, char *, unsigned);
646char * rmsexpand_ts (char *, char *, char *, unsigned);
647char * fileify_dirspec (char *, char *);
648char * fileify_dirspec_ts (char *, char *);
649char * pathify_dirspec (char *, char *);
650char * pathify_dirspec_ts (char *, char *);
651char * tounixspec (char *, char *);
652char * tounixspec_ts (char *, char *);
653char * tovmsspec (char *, char *);
654char * tovmsspec_ts (char *, char *);
655char * tounixpath (char *, char *);
656char * tounixpath_ts (char *, char *);
657char * tovmspath (char *, char *);
658char * tovmspath_ts (char *, char *);
659void vms_image_init (int *, char ***);
660DIR * opendir (char *);
661struct dirent * readdir (DIR *);
662long telldir (DIR *);
663void seekdir (DIR *, long);
664void closedir (DIR *);
665void vmsreaddirversions (DIR *, int);
666struct tm * my_gmtime (const time_t *);
667struct tm * my_localtime (const time_t *);
668time_t my_time (time_t *);
61bb5906 669#ifdef HOMEGROWN_POSIX_SIGNALS
20ce7b12
GS
670int my_sigemptyset (sigset_t *);
671int my_sigfillset (sigset_t *);
672int my_sigaddset (sigset_t *, int);
673int my_sigdelset (sigset_t *, int);
674int my_sigismember (sigset_t *, int);
675int my_sigprocmask (int, sigset_t *, sigset_t *);
5b411029 676#endif
146174a9 677I32 cando_by_name (I32, Uid_t, char *);
20ce7b12 678int flex_fstat (int, Stat_t *);
cc077a9f 679int flex_stat (const char *, Stat_t *);
20ce7b12
GS
680int trim_unixpath (char *, char*, int);
681int my_vfork ();
682bool vms_do_aexec (SV *, SV **, SV **);
683bool vms_do_exec (char *);
684unsigned long int do_aspawn (void *, void **, void **);
685unsigned long int do_spawn (char *);
686int my_fwrite (void *, size_t, size_t, FILE *);
687int my_flush (FILE *);
688struct passwd * my_getpwnam (char *name);
689struct passwd * my_getpwuid (Uid_t uid);
690struct passwd * my_getpwent ();
691void my_endpwent ();
692char * my_getlogin ();
693int rmscopy (char *, char *, int);
c07a80fd
PP
694typedef char __VMS_SEPYTOTORP__;
695/* prototype section end marker; `typedef' passes through cpp */
a0d0e21e 696
44a8e56a
PP
697#ifdef NO_PERL_TYPEDEFS /* We'll try not to scramble later files */
698# ifdef __MY_BOOL_TYPE_FAKE
699# undef bool
700# undef __MY_BOOL_TYPE_FAKE
701# endif
702# ifdef __MY_I32_TYPE_FAKE
703# undef I32
704# undef __MY_I32_TYPE_FAKE
705# endif
706# ifdef __MY_SV_TYPE_FAKE
707# undef SV
708# undef __MY_SV_TYPE_FAKE
709# endif
710#endif
711
a0d0e21e 712#ifndef VMS_DO_SOCKETS
748a9306
LW
713/* This relies on tricks in perl.h to pick up that these manifest constants
714 * are undefined and set up conversion routines. It will then redefine
715 * these manifest constants, so the actual values will match config.h
716 */
717#undef HAS_HTONS
718#undef HAS_NTOHS
719#undef HAS_HTONL
720#undef HAS_NTOHL
a0d0e21e
LW
721#endif
722
3b7650f4
CB
723/* The C RTL manual says to undef the macro for DEC C 5.2 and lower. */
724#if defined(fileno) && defined(__DECC_VER) && __DECC_VER < 50300000
725# undef fileno
726#endif
727
a0d0e21e 728#endif /* __vmsish_h_included */