3 * VMS-specific C header file for perl5.
5 * Last revised: 01-Oct-1995 by Charles Bailey bailey@genetics.upenn.edu
9 #ifndef __vmsish_h_included
10 #define __vmsish_h_included
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 */
18 /* Suppress compiler warnings from DECC for VMS-specific extensions:
19 * GLOBALEXT, NOSHAREEXT, READONLYEXT: global[dr]ef declarations
20 * ADDRCONSTEXT,NEEDCONSTEXT: initialization of data with non-constant values
21 * (e.g. pointer fields of descriptors)
24 # pragma message disable (GLOBALEXT,NOSHAREEXT,READONLYEXT,ADDRCONSTEXT,NEEDCONSTEXT)
27 /* DEC's C compilers and gcc use incompatible definitions of _to(upp|low)er() */
31 #define _toupper(c) (((c) < 'a' || (c) > 'z') ? (c) : (c) & ~040)
35 #define _tolower(c) (((c) < 'A' || (c) > 'Z') ? (c) : (c) | 040)
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)
40 #define abs(__x) __ABS(__x)
42 #define labs(__x) __LABS(__x)
43 #endif /* __ALPHA && __DECC */
45 /* Assorted things to look like Unix */
47 #ifndef _IOLBF /* gcc's stdio.h doesn't define this */
51 #include <processes.h> /* for vfork() */
54 #include <file.h> /* it's not <sys/file.h>, so don't use I_SYS_FILE */
55 #if defined(__DECC) && defined(__DECC_VER) && __DECC_VER > 20000000
56 # include <unistd.h> /* DECC has this; VAXC and gcc don't */
59 /* Our own contribution to PerlShr's global symbols . . . */
61 # define my_trnlnm Perl_my_trnlnm
62 # define my_getenv Perl_my_getenv
63 # define prime_env_iter Perl_prime_env_iter
64 # define my_setenv Perl_my_setenv
65 # define my_crypt Perl_my_crypt
66 # define waitpid Perl_waitpid
67 # define my_gconvert Perl_my_gconvert
68 # define do_rmdir Perl_do_rmdir
69 # define kill_file Perl_kill_file
70 # define my_utime Perl_my_utime
71 # define rmsexpand Perl_rmsexpand
72 # define rmsexpand_ts Perl_rmsexpand_ts
73 # define fileify_dirspec Perl_fileify_dirspec
74 # define fileify_dirspec_ts Perl_fileify_dirspec_ts
75 # define pathify_dirspec Perl_pathify_dirspec
76 # define pathify_dirspec_ts Perl_pathify_dirspec_ts
77 # define tounixspec Perl_tounixspec
78 # define tounixspec_ts Perl_tounixspec_ts
79 # define tovmsspec Perl_tovmsspec
80 # define tovmsspec_ts Perl_tovmsspec_ts
81 # define tounixpath Perl_tounixpath
82 # define tounixpath_ts Perl_tounixpath_ts
83 # define tovmspath Perl_tovmspath
84 # define tovmspath_ts Perl_tovmspath_ts
85 # define getredirection Perl_getredirection
86 # define opendir Perl_opendir
87 # define readdir Perl_readdir
88 # define telldir Perl_telldir
89 # define seekdir Perl_seekdir
90 # define closedir Perl_closedir
91 # define vmsreaddirversions Perl_vmsreaddirversions
92 # define getredirection Perl_getredirection
93 # define my_gmtime Perl_my_gmtime
94 # define cando_by_name Perl_cando_by_name
95 # define flex_fstat Perl_flex_fstat
96 # define flex_stat Perl_flex_stat
97 # define trim_unixpath Perl_trim_unixpath
98 # define my_vfork Perl_my_vfork
99 # define vms_do_aexec Perl_vms_do_aexec
100 # define vms_do_exec Perl_vms_do_exec
101 # define do_aspawn Perl_do_aspawn
102 # define do_spawn Perl_do_spawn
103 # define my_fwrite Perl_my_fwrite
104 # define my_binmode Perl_my_binmode
105 # define my_getpwnam Perl_my_getpwnam
106 # define my_getpwuid Perl_my_getpwuid
107 # define my_getpwent Perl_my_getpwent
108 # define my_endpwent Perl_my_endpwent
109 # define my_getlogin Perl_my_getlogin
110 # define rmscopy Perl_rmscopy
111 # define init_os_extras Perl_init_os_extras
114 /* Delete if at all possible, changing protections if necessary. */
115 #define unlink kill_file
118 * Intercept calls to fork, so we know whether subsequent calls to
119 * exec should be handled in VMSish or Unixish style.
121 #define fork my_vfork
122 #ifndef __DONT_MASK_VFORK /* #defined in vms.c so we see real vfork */
126 # define vfork my_vfork
130 * This symbol is defined if Time_t is an unsigned type on this system.
135 * This symbol is defined if this system has a stat structure declaring
138 #define USE_STAT_RDEV /**/
141 * This symbol, if defined, indicates that error messages should be
142 * should be generated in a format that allows the use of the Acme
143 * GUI/editor's autofind feature.
145 #undef ACME_MESS /**/
147 /* ALTERNATE_SHEBANG:
148 * This symbol, if defined, contains a "magic" string which may be used
149 * as the first line of a Perl program designed to be executed directly
150 * by name, instead of the standard Unix #!. If ALTERNATE_SHEBANG
151 * begins with a character other then #, then Perl will only treat
152 * it as a command line if if finds the string "perl" in the first
153 * word; otherwise it's treated as the first line of code in the script.
154 * (IOW, Perl won't hand off to another interpreter via an alternate
155 * shebang sequence that might be legal Perl code.)
157 #define ALTERNATE_SHEBANG "$"
159 /* Macros to set errno using the VAX thread-safe calls, if present */
160 #if (defined(__DECC) || defined(__DECCXX)) && !defined(__ALPHA)
161 # define set_errno(v) (cma$tis_errno_set_value(v))
162 void cma$tis_errno_set_value(int __value); /* missing in some errno.h */
163 # define set_vaxc_errno(v) (vaxc$errno = (v))
165 # define set_errno(v) (errno = (v))
166 # define set_vaxc_errno(v) (vaxc$errno = (v))
169 /* Handy way to vet calls to VMS system services and RTL routines. */
170 #define _ckvmssts(call) STMT_START { register unsigned long int __ckvms_sts; \
171 if (!((__ckvms_sts=(call))&1)) { \
172 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
173 croak("Fatal VMS error (status=%d) at %s, line %d", \
174 __ckvms_sts,__FILE__,__LINE__); } } STMT_END
176 /* Same thing, but don't call back to Perl's croak(); useful for errors
177 * occurring during startup, before Perl's state is initialized */
178 #define _ckvmssts_noperl(call) STMT_START { register unsigned long int __ckvms_sts; \
179 if (!((__ckvms_sts=(call))&1)) { \
180 set_errno(EVMSERR); set_vaxc_errno(__ckvms_sts); \
181 fprintf(Perl_debug_log,"Fatal VMS error (status=%d) at %s, line %d", \
182 __ckvms_sts,__FILE__,__LINE__); lib$signal(__ckvms_sts); } } STMT_END
184 #ifdef VMS_DO_SOCKETS
185 #include "sockadapt.h"
188 #define BIT_BUCKET "_NLA0:"
189 #define PERL_SYS_INIT(c,v) getredirection((c),(v))
190 #define PERL_SYS_TERM()
191 #define dXSUB_SYS int dummy
196 * This symbol, if defined, indicates that the program is running under
197 * VMS. It's a symbol automagically defined by all VMS C compilers I've seen.
198 * Just in case, however . . . */
204 * This symbol, if defined, indicates that the ioctl() routine is
205 * available to set I/O characteristics
207 #undef HAS_IOCTL /**/
210 * This symbol, if defined, indicates that the routine utime() is
211 * available to update the access and modification times of files.
213 #define HAS_UTIME /**/
216 * This symbol, if defined, indicates that the getgrnam(),
217 * getgrgid(), and getgrent() routines are available to
220 #undef HAS_GROUP /**/
223 * This symbol, if defined, indicates that the getpwnam(),
224 * getpwuid(), and getpwent() routines are available to
225 * get password entries.
227 #define HAS_PASSWD /**/
233 * This symbol, if defined, indicates that the program should
234 * use the routine my_binmode(FILE *fp, char iotype) to insure
235 * that a file is in "binary" mode -- that is, that no translation
236 * of bytes occurs on read or write operations.
241 * fwrite1() should be a routine with the same calling sequence as fwrite(),
242 * but which outputs all of the bytes requested as a single stream (unlike
243 * fwrite() itself, which on some systems outputs several distinct records
244 * if the number_of_items parameter is >1).
246 #define fwrite1 my_fwrite
248 /* Use our own rmdir() */
249 #define rmdir(name) do_rmdir(name)
251 /* Assorted fiddling with sigs . . . */
253 #define ABORT() abort()
254 /* VAXC's signal.h doesn't #define SIG_ERR, but provides BADSIG instead. */
255 #if !defined(SIG_ERR) && defined(BADSIG)
256 # define SIG_ERR BADSIG
260 /* Used with our my_utime() routine in vms.c */
265 #define utime my_utime
267 /* This is what times() returns, but <times.h> calls it tbuffer_t on VMS
268 * prior to v7.0. We check the DECC manifest to see whether it's already
269 * done this for us, relying on the fact that perl.h #includes <time.h>
270 * before it #includes "vmsish.h".
275 clock_t tms_utime; /* user time */
276 clock_t tms_stime; /* system time - always 0 on VMS */
277 clock_t tms_cutime; /* user time, children */
278 clock_t tms_cstime; /* system time, children - always 0 on VMS */
281 /* The new headers change the times() prototype to tms from tbuffer */
282 # define tbuffer_t struct tms
285 /* Prior to VMS 7.0, the CRTL gmtime() routine was a stub which always
286 * returned NULL. Substitute our own routine, which uses the logical
287 * SYS$TIMEZONE_DIFFERENTIAL, whcih the native UTC support routines
288 * in VMS 6.0 or later use.*
290 #define gmtime(t) my_gmtime(t)
292 /* VMS doesn't use a real sys_nerr, but we need this when scanning for error
293 * messages in text strings . . .
296 #define sys_nerr EVMSERR /* EVMSERR is as high as we can go. */
298 /* Look up new %ENV values on the fly */
299 #define DYNAMIC_ENV_FETCH 1
300 #define ENV_HV_NAME "%EnV%VmS%"
302 /* Thin jacket around cuserid() tomatch Unix' calling sequence */
303 #define getlogin my_getlogin
305 /* Ditto for sys$hash_passwrod() . . . */
306 #define crypt my_crypt
308 /* Use our own stat() clones, which handle Unix-style directory names */
309 #define Stat(name,bufptr) flex_stat(name,bufptr)
310 #define Fstat(fd,bufptr) flex_fstat(fd,bufptr)
312 /* By default, flush data all the way to disk, not just to RMS buffers */
313 #define Fflush(fp) ((fflush(fp) || fsync(fileno(fp))) ? EOF : 0)
315 /* Setup for the dirent routines:
316 * opendir(), closedir(), readdir(), seekdir(), telldir(), and
317 * vmsreaddirversions(), and preprocessor stuff on which these depend:
318 * Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
319 * This code has no copyright.
321 /* Data structure returned by READDIR(). */
323 char d_name[256]; /* File name */
324 int d_namlen; /* Length of d_name */
325 int vms_verscount; /* Number of versions */
326 int vms_versions[20]; /* Version numbers */
329 /* Handle returned by opendir(), used by the other routines. You
330 * are not supposed to care what's inside this structure. */
331 typedef struct _dirdesc {
333 int vms_wantversions;
334 unsigned long int count;
337 struct dsc$descriptor_s pat;
340 #define rewinddir(dirp) seekdir((dirp), 0)
342 /* used for our emulation of getpw* */
344 char *pw_name; /* Username */
346 Uid_t pw_uid; /* UIC member number */
347 Gid_t pw_gid; /* UIC group number */
348 char *pw_comment; /* Default device/directory (Unix-style) */
349 char *pw_gecos; /* Owner */
350 char *pw_dir; /* Default device/directory (VMS-style) */
351 char *pw_shell; /* Default CLI name (eg. DCL) */
353 #define pw_unixdir pw_comment /* Default device/directory (Unix-style) */
354 #define getpwnam my_getpwnam
355 #define getpwuid my_getpwuid
356 #define getpwent my_getpwent
357 #define endpwent my_endpwent
358 #define setpwent my_endpwent
360 /* Our own stat_t substitute, since we play with st_dev and st_ino -
361 * we want atomic types so Unix-bound code which compares these fields
362 * for two files will work most of the time under VMS.
363 * N.B. 1. The st_ino hack assumes that sizeof(unsigned short[3]) ==
364 * sizeof(unsigned) + sizeof(unsigned short). We can't use a union type
365 * to map the unsigned int we want and the unsigned short[3] the CRTL
366 * returns into the same member, since gcc has different ideas than DECC
367 * and VAXC about sizing union types.
368 * N.B 2. The routine cando() in vms.c assumes that &stat.st_ino is the
371 /* First, grab the system types, so we don't clobber them later */
373 /* Since we've got to match the size of the CRTL's stat_t, we need
374 * to mimic DECC's alignment settings.
376 #if defined(__DECC) || defined(__DECCXX)
377 # pragma __member_alignment __save
378 # pragma __nomember_alignment
381 # pragma __message __save
382 # pragma __message disable (__MISALGNDSTRCT)
383 # pragma __message disable (__MISALGNDMEM)
387 char *st_devnam; /* pointer to device name */
388 unsigned st_ino; /* hack - CRTL uses unsigned short[3] for */
389 unsigned short rvn; /* FID (num,seq,rvn) */
390 unsigned short st_mode; /* file "mode" i.e. prot, dir, reg, etc. */
391 int st_nlink; /* for compatibility - not really used */
392 unsigned st_uid; /* from ACP - QIO uic field */
393 unsigned short st_gid; /* group number extracted from st_uid */
394 dev_t st_rdev; /* for compatibility - always zero */
395 off_t st_size; /* file size in bytes */
396 unsigned st_atime; /* file access time; always same as st_mtime */
397 unsigned st_mtime; /* last modification time */
398 unsigned st_ctime; /* file creation time */
399 char st_fab_rfm; /* record format */
400 char st_fab_rat; /* record attributes */
401 char st_fab_fsz; /* fixed header size */
402 unsigned st_dev; /* encoded device name */
405 typedef unsigned mydev_t;
406 #define dev_t mydev_t
407 typedef unsigned myino_t;
408 #define ino_t myino_t
409 #if defined(__DECC) || defined(__DECCXX)
410 # pragma __member_alignment __restore
413 # pragma __message __restore
415 /* Cons up a 'delete' bit for testing access */
416 #define S_IDUSR (S_IWUSR | S_IXUSR)
417 #define S_IDGRP (S_IWGRP | S_IXGRP)
418 #define S_IDOTH (S_IWOTH | S_IXOTH)
420 /* Prototypes for functions unique to vms.c. Don't include replacements
421 * for routines in the mainline source files excluded by #ifndef VMS;
422 * their prototypes are already in proto.h.
424 * In order to keep Gen_ShrFls.Pl happy, functions which are to be made
425 * available to images linked to PerlShr.Exe must be declared between the
426 * __VMS_PROTOTYPES__ and __VMS_SEPYTOTORP__ lines, and must be in the form
427 * <data type><TAB>name<WHITESPACE>_((<prototype args>));
430 #ifdef NO_PERL_TYPEDEFS
431 /* We don't have Perl typedefs available (e.g. when building a2p), so
432 we fake them here. N.B. There is *no* guarantee that the faked
433 prototypes will actually match the real routines. If you want to
434 call Perl routines, include perl.h to get the real typedefs. */
437 # define __MY_BOOL_TYPE_FAKE
441 # define __MY_I32_TYPE_FAKE
444 # define SV void /* Since we only see SV * in prototypes */
445 # define __MY_SV_TYPE_FAKE
449 void prime_env_iter _((void));
450 void getredirection _((int *, char ***));
451 void init_os_extras _(());
452 /* prototype section start marker; `typedef' passes through cpp */
453 typedef char __VMS_PROTOTYPES__;
454 int my_trnlnm _((char *, char *, unsigned long int));
455 char * my_getenv _((char *));
456 char * my_crypt _((const char *, const char *));
457 unsigned long int waitpid _((unsigned long int, int *, int));
458 char * my_gconvert _((double, int, int, char *));
459 int do_rmdir _((char *));
460 int kill_file _((char *));
461 int my_utime _((char *, struct utimbuf *));
462 char * rmsexpand _((char *, char *, char *, unsigned));
463 char * rmsexpand_ts _((char *, char *, char *, unsigned));
464 char * fileify_dirspec _((char *, char *));
465 char * fileify_dirspec_ts _((char *, char *));
466 char * pathify_dirspec _((char *, char *));
467 char * pathify_dirspec_ts _((char *, char *));
468 char * tounixspec _((char *, char *));
469 char * tounixspec_ts _((char *, char *));
470 char * tovmsspec _((char *, char *));
471 char * tovmsspec_ts _((char *, char *));
472 char * tounixpath _((char *, char *));
473 char * tounixpath_ts _((char *, char *));
474 char * tovmspath _((char *, char *));
475 char * tovmspath_ts _((char *, char *));
476 void getredirection _(());
477 DIR * opendir _((char *));
478 struct dirent * readdir _((DIR *));
479 long telldir _((DIR *));
480 void seekdir _((DIR *, long));
481 void closedir _((DIR *));
482 void vmsreaddirversions _((DIR *, int));
483 struct tm *my_gmtime _((const time_t *));
484 I32 cando_by_name _((I32, I32, char *));
485 int flex_fstat _((int, struct stat *));
486 int flex_stat _((char *, struct stat *));
487 int trim_unixpath _((char *, char*, int));
489 bool vms_do_aexec _((SV *, SV **, SV **));
490 bool vms_do_exec _((char *));
491 unsigned long int do_aspawn _((SV *, SV **, SV **));
492 unsigned long int do_spawn _((char *));
493 int my_fwrite _((void *, size_t, size_t, FILE *));
494 FILE * my_binmode _((FILE *, char));
495 struct passwd * my_getpwnam _((char *name));
496 struct passwd * my_getpwuid _((Uid_t uid));
497 struct passwd * my_getpwent _(());
498 void my_endpwent _(());
499 char * my_getlogin _(());
500 int rmscopy _((char *, char *, int));
501 typedef char __VMS_SEPYTOTORP__;
502 /* prototype section end marker; `typedef' passes through cpp */
504 #ifdef NO_PERL_TYPEDEFS /* We'll try not to scramble later files */
505 # ifdef __MY_BOOL_TYPE_FAKE
507 # undef __MY_BOOL_TYPE_FAKE
509 # ifdef __MY_I32_TYPE_FAKE
511 # undef __MY_I32_TYPE_FAKE
513 # ifdef __MY_SV_TYPE_FAKE
515 # undef __MY_SV_TYPE_FAKE
519 #ifndef VMS_DO_SOCKETS
520 /* This relies on tricks in perl.h to pick up that these manifest constants
521 * are undefined and set up conversion routines. It will then redefine
522 * these manifest constants, so the actual values will match config.h
530 #define TMPPATH "sys$scratch:perl-eXXXXXX"
532 #endif /* __vmsish_h_included */