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Add test for grep() and wantarray
[perl5.git] / vms / vmsish.h
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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
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7 */
8
9#ifndef __vmsish_h_included
10#define __vmsish_h_included
11
12#include <descrip.h> /* for dirent struct definitions */
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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:
36477c24 19 * GLOBALEXT, NOSHAREEXT, READONLYEXT: global[dr]ef declarations
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20 * ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
21 * (e.g. pointer fields of descriptors)
22 */
23#ifdef __DECC
36477c24 24# pragma message disable (GLOBALEXT,NOSHAREEXT,READONLYEXT,ADDRCONSTEXT,NEEDCONSTEXT)
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25#endif
26
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27/* DEC's C compilers and gcc use incompatible definitions of _to(upp|low)er() */
28#ifdef _toupper
29# undef _toupper
30#endif
31#define _toupper(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) & ~040)
32#ifdef _tolower
33# undef _tolower
34#endif
35#define _tolower(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) | 040)
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36/* DECC 1.3 has a funny definition of abs; it's fixed in DECC 4.0, so this
37 * can go away once DECC 1.3 isn't in use any more. */
38#if defined(__ALPHA) && defined(__DECC)
39#undef abs
40#define abs(__x) __ABS(__x)
41#undef labs
42#define labs(__x) __LABS(__x)
43#endif /* __ALPHA && __DECC */
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44
45/* Assorted things to look like Unix */
46#ifdef __GNUC__
47#ifndef _IOLBF /* gcc's stdio.h doesn't define this */
48#define _IOLBF 1
49#endif
748a9306 50#endif
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51#include <processes.h> /* for vfork() */
52#include <unixio.h>
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53#include <unixlib.h>
54#include <file.h> /* it's not <sys/file.h>, so don't use I_SYS_FILE */
774d564b 55#if defined(__DECC) && defined(__DECC_VER) && __DECC_VER > 20000000
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56# include <unistd.h> /* DECC has this; VAXC and gcc don't */
57#endif
bf109933 58
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59/* DECC introduces this routine in the RTL as of VMS 7.0; for now,
60 * we'll use ours, since it gives us the full VMS exit status. */
61#ifdef __PID_T
62# define Pid_t pid_t
63#else
64# define Pid_t unsigned int
65#endif
66#define waitpid my_waitpid
67
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68/* Our own contribution to PerlShr's global symbols . . . */
69#ifdef EMBED
70# define my_trnlnm Perl_my_trnlnm
71# define my_getenv Perl_my_getenv
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72# define prime_env_iter Perl_prime_env_iter
73# define my_setenv Perl_my_setenv
bf109933 74# define my_crypt Perl_my_crypt
4fdae800 75# define my_waitpid Perl_my_waitpid
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76# define my_gconvert Perl_my_gconvert
77# define do_rmdir Perl_do_rmdir
78# define kill_file Perl_kill_file
79# define my_utime Perl_my_utime
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80# define rmsexpand Perl_rmsexpand
81# define rmsexpand_ts Perl_rmsexpand_ts
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82# define fileify_dirspec Perl_fileify_dirspec
83# define fileify_dirspec_ts Perl_fileify_dirspec_ts
84# define pathify_dirspec Perl_pathify_dirspec
85# define pathify_dirspec_ts Perl_pathify_dirspec_ts
86# define tounixspec Perl_tounixspec
87# define tounixspec_ts Perl_tounixspec_ts
88# define tovmsspec Perl_tovmsspec
89# define tovmsspec_ts Perl_tovmsspec_ts
90# define tounixpath Perl_tounixpath
91# define tounixpath_ts Perl_tounixpath_ts
92# define tovmspath Perl_tovmspath
93# define tovmspath_ts Perl_tovmspath_ts
94# define getredirection Perl_getredirection
95# define opendir Perl_opendir
96# define readdir Perl_readdir
97# define telldir Perl_telldir
98# define seekdir Perl_seekdir
99# define closedir Perl_closedir
100# define vmsreaddirversions Perl_vmsreaddirversions
101# define getredirection Perl_getredirection
102# define my_gmtime Perl_my_gmtime
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103# define my_localtime Perl_my_localtime
104# define my_time Perl_my_time
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105# define cando_by_name Perl_cando_by_name
106# define flex_fstat Perl_flex_fstat
107# define flex_stat Perl_flex_stat
108# define trim_unixpath Perl_trim_unixpath
0414b1a0 109# define my_vfork Perl_my_vfork
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110# define vms_do_aexec Perl_vms_do_aexec
111# define vms_do_exec Perl_vms_do_exec
112# define do_aspawn Perl_do_aspawn
113# define do_spawn Perl_do_spawn
114# define my_fwrite Perl_my_fwrite
0414b1a0 115# define my_binmode Perl_my_binmode
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116# define my_getpwnam Perl_my_getpwnam
117# define my_getpwuid Perl_my_getpwuid
118# define my_getpwent Perl_my_getpwent
119# define my_endpwent Perl_my_endpwent
120# define my_getlogin Perl_my_getlogin
121# define rmscopy Perl_rmscopy
122# define init_os_extras Perl_init_os_extras
123#endif
124
125/* Delete if at all possible, changing protections if necessary. */
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126#define unlink kill_file
127
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128/*
129 * Intercept calls to fork, so we know whether subsequent calls to
130 * exec should be handled in VMSish or Unixish style.
131 */
132#define fork my_vfork
133#ifndef __DONT_MASK_VFORK /* #defined in vms.c so we see real vfork */
134# ifdef vfork
135# undef vfork
136# endif
137# define vfork my_vfork
138#endif
139
140/* BIG_TIME:
141 * This symbol is defined if Time_t is an unsigned type on this system.
142 */
143#define BIG_TIME
144
145/* USE_STAT_RDEV:
146 * This symbol is defined if this system has a stat structure declaring
147 * st_rdev
e518068a 148 */
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149#define USE_STAT_RDEV /**/
150
151/* ACME_MESS:
152 * This symbol, if defined, indicates that error messages should be
153 * should be generated in a format that allows the use of the Acme
154 * GUI/editor's autofind feature.
155 */
156#undef ACME_MESS /**/
e518068a 157
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158/* ALTERNATE_SHEBANG:
159 * This symbol, if defined, contains a "magic" string which may be used
160 * as the first line of a Perl program designed to be executed directly
161 * by name, instead of the standard Unix #!. If ALTERNATE_SHEBANG
162 * begins with a character other then #, then Perl will only treat
163 * it as a command line if if finds the string "perl" in the first
164 * word; otherwise it's treated as the first line of code in the script.
165 * (IOW, Perl won't hand off to another interpreter via an alternate
166 * shebang sequence that might be legal Perl code.)
167 */
168#define ALTERNATE_SHEBANG "$"
169
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170/* Macros to set errno using the VAX thread-safe calls, if present */
171#if (defined(__DECC) || defined(__DECCXX)) && !defined(__ALPHA)
172# define set_errno(v) (cma$tis_errno_set_value(v))
774d564b 173 void cma$tis_errno_set_value(int __value); /* missing in some errno.h */
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174# define set_vaxc_errno(v) (vaxc$errno = (v))
175#else
176# define set_errno(v) (errno = (v))
177# define set_vaxc_errno(v) (vaxc$errno = (v))
178#endif
179
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180/* Support for 'vmsish' behaviors enabled with C<use vmsish> pragma */
181
182#define COMPLEX_STATUS 1 /* We track both "POSIX" and VMS values */
183
184#define HINT_S_VMSISH 24
185#define HINT_M_VMSISH_STATUS 0x01000000 /* system, $? return VMS status */
186#define HINT_M_VMSISH_EXIT 0x02000000 /* exit(1) ==> SS$_NORMAL */
187#define HINT_M_VMSISH_TIME 0x04000000 /* times are local, not UTC */
188#define NATIVE_HINTS (hints >> HINT_S_VMSISH) /* used in op.c */
189
190#define TEST_VMSISH(h) (curcop->op_private & ((h) >> HINT_S_VMSISH))
191#define VMSISH_STATUS TEST_VMSISH(HINT_M_VMSISH_STATUS)
192#define VMSISH_EXIT TEST_VMSISH(HINT_M_VMSISH_EXIT)
193#define VMSISH_TIME TEST_VMSISH(HINT_M_VMSISH_TIME)
194
748a9306 195/* Handy way to vet calls to VMS system services and RTL routines. */
bf109933 196#define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
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197 if (!((__ckvms_sts=(call))&1)) { \
198 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
e518068a 199 croak("Fatal VMS error (status=%d) at %s, line %d", \
bf109933 200 __ckvms_sts,__FILE__,__LINE__); } } STMT_END
a0d0e21e 201
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202/* Same thing, but don't call back to Perl's croak(); useful for errors
203 * occurring during startup, before Perl's state is initialized */
204#define _ckvmssts_noperl(call) STMT_START { register unsigned long int __ckvms_sts; \
205 if (!((__ckvms_sts=(call))&1)) { \
206 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
207 fprintf(Perl_debug_log,"Fatal VMS error (status=%d) at %s, line %d", \
208 __ckvms_sts,__FILE__,__LINE__); lib$signal(__ckvms_sts); } } STMT_END
209
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210#ifdef VMS_DO_SOCKETS
211#include "sockadapt.h"
212#endif
213
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214#define BIT_BUCKET "_NLA0:"
215#define PERL_SYS_INIT(c,v) getredirection((c),(v))
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216#define PERL_SYS_TERM()
217#define dXSUB_SYS int dummy
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218#define HAS_KILL
219#define HAS_WAIT
220
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221/* VMS:
222 * This symbol, if defined, indicates that the program is running under
223 * VMS. It's a symbol automagically defined by all VMS C compilers I've seen.
224 * Just in case, however . . . */
225#ifndef VMS
226#define VMS /**/
227#endif
228
229/* HAS_IOCTL:
230 * This symbol, if defined, indicates that the ioctl() routine is
231 * available to set I/O characteristics
a0d0e21e 232 */
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233#undef HAS_IOCTL /**/
234
235/* HAS_UTIME:
236 * This symbol, if defined, indicates that the routine utime() is
237 * available to update the access and modification times of files.
238 */
239#define HAS_UTIME /**/
a0d0e21e 240
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241/* HAS_GROUP
242 * This symbol, if defined, indicates that the getgrnam(),
243 * getgrgid(), and getgrent() routines are available to
244 * get group entries.
245 */
246#undef HAS_GROUP /**/
247
248/* HAS_PASSWD
249 * This symbol, if defined, indicates that the getpwnam(),
250 * getpwuid(), and getpwent() routines are available to
251 * get password entries.
252 */
253#define HAS_PASSWD /**/
254
255#define HAS_KILL
256#define HAS_WAIT
257
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258/* USEMYBINMODE
259 * This symbol, if defined, indicates that the program should
260 * use the routine my_binmode(FILE *fp, char iotype) to insure
261 * that a file is in "binary" mode -- that is, that no translation
262 * of bytes occurs on read or write operations.
263 */
264#define USEMYBINMODE
265
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266/*
267 * fwrite1() should be a routine with the same calling sequence as fwrite(),
268 * but which outputs all of the bytes requested as a single stream (unlike
269 * fwrite() itself, which on some systems outputs several distinct records
270 * if the number_of_items parameter is >1).
271 */
272#define fwrite1 my_fwrite
273
274/* Use our own rmdir() */
275#define rmdir(name) do_rmdir(name)
276
277/* Assorted fiddling with sigs . . . */
278# include <signal.h>
279#define ABORT() abort()
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280 /* VAXC's signal.h doesn't #define SIG_ERR, but provides BADSIG instead. */
281#if !defined(SIG_ERR) && defined(BADSIG)
282# define SIG_ERR BADSIG
283#endif
284
a0d0e21e 285
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286/* Used with our my_utime() routine in vms.c */
287struct utimbuf {
288 time_t actime;
289 time_t modtime;
290};
291#define utime my_utime
292
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293/* This is what times() returns, but <times.h> calls it tbuffer_t on VMS
294 * prior to v7.0. We check the DECC manifest to see whether it's already
295 * done this for us, relying on the fact that perl.h #includes <time.h>
296 * before it #includes "vmsish.h".
297 */
a0d0e21e 298
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299#ifndef __TMS
300 struct tms {
301 clock_t tms_utime; /* user time */
302 clock_t tms_stime; /* system time - always 0 on VMS */
303 clock_t tms_cutime; /* user time, children */
304 clock_t tms_cstime; /* system time, children - always 0 on VMS */
305 };
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306#else
307 /* The new headers change the times() prototype to tms from tbuffer */
308# define tbuffer_t struct tms
0414b1a0 309#endif
a0d0e21e 310
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311/* Prior to VMS 7.0, the CRTL gmtime() routine was a stub which always
312 * returned NULL. Substitute our own routine, which uses the logical
313 * SYS$TIMEZONE_DIFFERENTIAL, whcih the native UTC support routines
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314 * in VMS 6.0 or later use. We also add shims for time() and localtime()
315 * so we can run on UTC by default.
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316 */
317#define gmtime(t) my_gmtime(t)
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318#define localtime(t) my_localtime(t)
319#define time(t) my_time(t)
e518068a 320
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321/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
322 * messages in text strings . . .
323 */
324
325#define sys_nerr EVMSERR /* EVMSERR is as high as we can go. */
326
327/* Look up new %ENV values on the fly */
328#define DYNAMIC_ENV_FETCH 1
329#define ENV_HV_NAME "%EnV%VmS%"
330
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331/* Thin jacket around cuserid() tomatch Unix' calling sequence */
332#define getlogin my_getlogin
333
334/* Ditto for sys$hash_passwrod() . . . */
335#define crypt my_crypt
336
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337/* Use our own stat() clones, which handle Unix-style directory names */
338#define Stat(name,bufptr) flex_stat(name,bufptr)
339#define Fstat(fd,bufptr) flex_fstat(fd,bufptr)
340
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341/* By default, flush data all the way to disk, not just to RMS buffers */
342#define Fflush(fp) ((fflush(fp) || fsync(fileno(fp))) ? EOF : 0)
343
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344/* Setup for the dirent routines:
345 * opendir(), closedir(), readdir(), seekdir(), telldir(), and
346 * vmsreaddirversions(), and preprocessor stuff on which these depend:
347 * Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
348 * This code has no copyright.
349 */
350 /* Data structure returned by READDIR(). */
351struct dirent {
352 char d_name[256]; /* File name */
353 int d_namlen; /* Length of d_name */
354 int vms_verscount; /* Number of versions */
355 int vms_versions[20]; /* Version numbers */
356};
357
358 /* Handle returned by opendir(), used by the other routines. You
359 * are not supposed to care what's inside this structure. */
360typedef struct _dirdesc {
361 long context;
362 int vms_wantversions;
363 unsigned long int count;
364 char *pattern;
365 struct dirent entry;
366 struct dsc$descriptor_s pat;
367} DIR;
368
369#define rewinddir(dirp) seekdir((dirp), 0)
370
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371/* used for our emulation of getpw* */
372struct passwd {
373 char *pw_name; /* Username */
374 char *pw_passwd;
375 Uid_t pw_uid; /* UIC member number */
376 Gid_t pw_gid; /* UIC group number */
377 char *pw_comment; /* Default device/directory (Unix-style) */
378 char *pw_gecos; /* Owner */
379 char *pw_dir; /* Default device/directory (VMS-style) */
380 char *pw_shell; /* Default CLI name (eg. DCL) */
381};
382#define pw_unixdir pw_comment /* Default device/directory (Unix-style) */
383#define getpwnam my_getpwnam
384#define getpwuid my_getpwuid
385#define getpwent my_getpwent
386#define endpwent my_endpwent
387#define setpwent my_endpwent
388
389/* Our own stat_t substitute, since we play with st_dev and st_ino -
390 * we want atomic types so Unix-bound code which compares these fields
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391 * for two files will work most of the time under VMS.
392 * N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
393 * sizeof(unsigned) + sizeof(unsigned short). We can't use a union type
394 * to map the unsigned int we want and the unsigned short[3] the CRTL
395 * returns into the same member, since gcc has different ideas than DECC
396 * and VAXC about sizing union types.
397 * N.B 2. The routine cando() in vms.c assumes that &stat.st_ino is the
398 * address of a FID.
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399 */
400/* First, grab the system types, so we don't clobber them later */
401#include <stat.h>
402/* Since we've got to match the size of the CRTL's stat_t, we need
403 * to mimic DECC's alignment settings.
404 */
405#if defined(__DECC) || defined(__DECCXX)
406# pragma __member_alignment __save
407# pragma __nomember_alignment
408#endif
409#if defined(__DECC)
410# pragma __message __save
411# pragma __message disable (__MISALGNDSTRCT)
412# pragma __message disable (__MISALGNDMEM)
413#endif
414struct mystat
415{
416 char *st_devnam; /* pointer to device name */
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417 unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
418 unsigned short rvn; /* FID (num,seq,rvn) */
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419 unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
420 int st_nlink; /* for compatibility - not really used */
421 unsigned st_uid; /* from ACP - QIO uic field */
422 unsigned short st_gid; /* group number extracted from st_uid */
423 dev_t st_rdev; /* for compatibility - always zero */
424 off_t st_size; /* file size in bytes */
425 unsigned st_atime; /* file access time; always same as st_mtime */
426 unsigned st_mtime; /* last modification time */
427 unsigned st_ctime; /* file creation time */
428 char st_fab_rfm; /* record format */
429 char st_fab_rat; /* record attributes */
430 char st_fab_fsz; /* fixed header size */
431 unsigned st_dev; /* encoded device name */
432};
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433#define stat mystat
434typedef unsigned mydev_t;
435#define dev_t mydev_t
c07a80fd 436typedef unsigned myino_t;
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437#define ino_t myino_t
438#if defined(__DECC) || defined(__DECCXX)
439# pragma __member_alignment __restore
440#endif
441#if defined(__DECC)
442# pragma __message __restore
443#endif
444/* Cons up a 'delete' bit for testing access */
445#define S_IDUSR (S_IWUSR | S_IXUSR)
446#define S_IDGRP (S_IWGRP | S_IXGRP)
447#define S_IDOTH (S_IWOTH | S_IXOTH)
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448
449/* Prototypes for functions unique to vms.c. Don't include replacements
450 * for routines in the mainline source files excluded by #ifndef VMS;
451 * their prototypes are already in proto.h.
452 *
453 * In order to keep Gen_ShrFls.Pl happy, functions which are to be made
454 * available to images linked to PerlShr.Exe must be declared between the
455 * __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
456 * <data type><TAB>name<WHITESPACE>_((<prototype args>));
457 */
94c456c4 458
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459#ifdef NO_PERL_TYPEDEFS
460 /* We don't have Perl typedefs available (e.g. when building a2p), so
461 we fake them here. N.B. There is *no* guarantee that the faked
462 prototypes will actually match the real routines. If you want to
463 call Perl routines, include perl.h to get the real typedefs. */
464# ifndef bool
465# define bool int
466# define __MY_BOOL_TYPE_FAKE
467# endif
468# ifndef I32
469# define I32 int
470# define __MY_I32_TYPE_FAKE
471# endif
472# ifndef SV
473# define SV void /* Since we only see SV * in prototypes */
474# define __MY_SV_TYPE_FAKE
475# endif
476#endif
477
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478void prime_env_iter _((void));
479void getredirection _((int *, char ***));
480void init_os_extras _(());
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481/* prototype section start marker; `typedef' passes through cpp */
482typedef char __VMS_PROTOTYPES__;
483int my_trnlnm _((char *, char *, unsigned long int));
a0d0e21e 484char * my_getenv _((char *));
c07a80fd 485char * my_crypt _((const char *, const char *));
4fdae800 486Pid_t my_waitpid _((Pid_t, int *, int));
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487char * my_gconvert _((double, int, int, char *));
488int do_rmdir _((char *));
489int kill_file _((char *));
748a9306 490int my_utime _((char *, struct utimbuf *));
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491char * rmsexpand _((char *, char *, char *, unsigned));
492char * rmsexpand_ts _((char *, char *, char *, unsigned));
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493char * fileify_dirspec _((char *, char *));
494char * fileify_dirspec_ts _((char *, char *));
495char * pathify_dirspec _((char *, char *));
496char * pathify_dirspec_ts _((char *, char *));
497char * tounixspec _((char *, char *));
498char * tounixspec_ts _((char *, char *));
499char * tovmsspec _((char *, char *));
500char * tovmsspec_ts _((char *, char *));
501char * tounixpath _((char *, char *));
502char * tounixpath_ts _((char *, char *));
503char * tovmspath _((char *, char *));
504char * tovmspath_ts _((char *, char *));
505void getredirection _(());
506DIR * opendir _((char *));
507struct dirent * readdir _((DIR *));
508long telldir _((DIR *));
509void seekdir _((DIR *, long));
510void closedir _((DIR *));
511void vmsreaddirversions _((DIR *, int));
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512struct tm * my_gmtime _((const time_t *));
513struct tm * my_localtime _((const time_t *));
514time_t my_time _((time_t *));
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515I32 cando_by_name _((I32, I32, char *));
516int flex_fstat _((int, struct stat *));
517int flex_stat _((char *, struct stat *));
f86702cc 518int trim_unixpath _((char *, char*, int));
0414b1a0 519int my_vfork _(());
748a9306 520bool vms_do_aexec _((SV *, SV **, SV **));
a0d0e21e 521bool vms_do_exec _((char *));
748a9306 522unsigned long int do_aspawn _((SV *, SV **, SV **));
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LW
523unsigned long int do_spawn _((char *));
524int my_fwrite _((void *, size_t, size_t, FILE *));
0414b1a0 525FILE * my_binmode _((FILE *, char));
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LW
526struct passwd * my_getpwnam _((char *name));
527struct passwd * my_getpwuid _((Uid_t uid));
528struct passwd * my_getpwent _(());
529void my_endpwent _(());
c07a80fd 530char * my_getlogin _(());
bf109933 531int rmscopy _((char *, char *, int));
c07a80fd
PP
532typedef char __VMS_SEPYTOTORP__;
533/* prototype section end marker; `typedef' passes through cpp */
a0d0e21e 534
44a8e56a
PP
535#ifdef NO_PERL_TYPEDEFS /* We'll try not to scramble later files */
536# ifdef __MY_BOOL_TYPE_FAKE
537# undef bool
538# undef __MY_BOOL_TYPE_FAKE
539# endif
540# ifdef __MY_I32_TYPE_FAKE
541# undef I32
542# undef __MY_I32_TYPE_FAKE
543# endif
544# ifdef __MY_SV_TYPE_FAKE
545# undef SV
546# undef __MY_SV_TYPE_FAKE
547# endif
548#endif
549
a0d0e21e 550#ifndef VMS_DO_SOCKETS
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LW
551/* This relies on tricks in perl.h to pick up that these manifest constants
552 * are undefined and set up conversion routines. It will then redefine
553 * these manifest constants, so the actual values will match config.h
554 */
555#undef HAS_HTONS
556#undef HAS_NTOHS
557#undef HAS_HTONL
558#undef HAS_NTOHL
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559#endif
560
482b294c
PP
561#define TMPPATH "sys$scratch:perl-eXXXXXX"
562
a0d0e21e 563#endif /* __vmsish_h_included */