Add a test for [perl #17753].
[p5sagit/p5-mst-13.2.git] / perlsdio.h
CommitLineData
eb1102fc 1/* perlsdio.h
2 *
3f774658 3 * Copyright (c) 1997-2002, Larry Wall
eb1102fc 4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
760ac839 10#ifdef PERLIO_IS_STDIO
afd1eb53 11
12#ifdef NETWARE
13 #include "nwstdio.h"
14#else
15
760ac839 16/*
76ced9ad 17 * This file #define-s the PerlIO_xxx abstraction onto stdio functions.
760ac839 18 * Make this as close to original stdio as possible.
19 */
76ced9ad 20#define PerlIO FILE
362d0d44 21#define PerlIO_stderr() PerlSIO_stderr
22#define PerlIO_stdout() PerlSIO_stdout
23#define PerlIO_stdin() PerlSIO_stdin
760ac839 24
76ced9ad 25#define PerlIO_isutf8(f) 0
26
362d0d44 27#define PerlIO_printf PerlSIO_printf
28#define PerlIO_stdoutf PerlSIO_stdoutf
29#define PerlIO_vprintf(f,fmt,a) PerlSIO_vprintf(f,fmt,a)
30#define PerlIO_write(f,buf,count) PerlSIO_fwrite(buf,1,count,f)
a15cef0c 31#define PerlIO_unread(f,buf,count) (-1)
362d0d44 32#define PerlIO_open PerlSIO_fopen
33#define PerlIO_fdopen PerlSIO_fdopen
34#define PerlIO_reopen PerlSIO_freopen
35#define PerlIO_close(f) PerlSIO_fclose(f)
36#define PerlIO_puts(f,s) PerlSIO_fputs(f,s)
37#define PerlIO_putc(f,c) PerlSIO_fputc(f,c)
9607fc9c 38#if defined(VMS)
39# if defined(__DECC)
40 /* Unusual definition of ungetc() here to accomodate fast_sv_gets()'
41 * belief that it can mix getc/ungetc with reads from stdio buffer */
42 int decc$ungetc(int __c, FILE *__stream);
43# define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \
44 ((*(f) && !((*(f))->_flag & _IONBF) && \
45 ((*(f))->_ptr > (*(f))->_base)) ? \
46 ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f)))
47# else
48# define PerlIO_ungetc(f,c) ungetc(c,f)
49# endif
50 /* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old
51 * VAXCRTL which causes read from a pipe after EOF has been returned
52 * once to hang.
aa689395 53 */
5b54f415 54# define PerlIO_getc(f) \
55 (feof(f) ? EOF : getc(f))
56# define PerlIO_read(f,buf,count) \
57 (feof(f) ? 0 : (SSize_t)fread(buf,1,count,f))
bf348c40 58# define PerlIO_tell(f) ftell(f)
1ac5d68d 59#else
362d0d44 60# define PerlIO_getc(f) PerlSIO_fgetc(f)
61# define PerlIO_ungetc(f,c) PerlSIO_ungetc(c,f)
62# define PerlIO_read(f,buf,count) (SSize_t)PerlSIO_fread(buf,1,count,f)
63# define PerlIO_tell(f) PerlSIO_ftell(f)
1ac5d68d 64#endif
362d0d44 65#define PerlIO_eof(f) PerlSIO_feof(f)
a20bf0c3 66#define PerlIO_getname(f,b) fgetname(f,b)
362d0d44 67#define PerlIO_error(f) PerlSIO_ferror(f)
68#define PerlIO_fileno(f) PerlSIO_fileno(f)
69#define PerlIO_clearerr(f) PerlSIO_clearerr(f)
70#define PerlIO_flush(f) PerlSIO_fflush(f)
cf829ab0 71#if defined(VMS) && !defined(__DECC)
72/* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */
73#define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w))
fab3f3a7 74#else
362d0d44 75# define PerlIO_seek(f,o,w) PerlSIO_fseek(f,o,w)
17f28c40 76#endif
760ac839 77
362d0d44 78#define PerlIO_rewind(f) PerlSIO_rewind(f)
79#define PerlIO_tmpfile() PerlSIO_tmpfile()
760ac839 80
76ced9ad 81#define PerlIO_importFILE(f,fl) (f)
82#define PerlIO_exportFILE(f,fl) (f)
83#define PerlIO_findFILE(f) (f)
84#define PerlIO_releaseFILE(p,f) ((void) 0)
760ac839 85
86#ifdef HAS_SETLINEBUF
362d0d44 87#define PerlIO_setlinebuf(f) PerlSIO_setlinebuf(f);
760ac839 88#else
362d0d44 89#define PerlIO_setlinebuf(f) PerlSIO_setvbuf(f, Nullch, _IOLBF, 0);
760ac839 90#endif
91
92/* Now our interface to Configure's FILE_xxx macros */
93
94#ifdef USE_STDIO_PTR
76ced9ad 95#define PerlIO_has_cntptr(f) 1
362d0d44 96#define PerlIO_get_ptr(f) PerlSIO_get_ptr(f)
97#define PerlIO_get_cnt(f) PerlSIO_get_cnt(f)
760ac839 98
c7ae39e5 99#ifdef STDIO_CNT_LVALUE
76ced9ad 100#define PerlIO_canset_cnt(f) 1
362d0d44 101#define PerlIO_set_cnt(f,c) PerlSIO_set_cnt(f,c)
c7ae39e5 102#ifdef STDIO_PTR_LVALUE
a7ffa9b9 103#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
76ced9ad 104#define PerlIO_fast_gets(f) 1
760ac839 105#endif
a7ffa9b9 106#endif /* STDIO_PTR_LVALUE */
107#else /* STDIO_CNT_LVALUE */
76ced9ad 108#define PerlIO_canset_cnt(f) 0
a20bf0c3 109#define PerlIO_set_cnt(f,c) abort()
760ac839 110#endif
111
c7ae39e5 112#ifdef STDIO_PTR_LVALUE
a7ffa9b9 113#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
362d0d44 114#define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p), PerlIO_set_cnt(f,c);} STMT_END
a7ffa9b9 115#else
116#ifdef STDIO_PTR_LVAL_SETS_CNT
117/* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */
362d0d44 118#define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p); assert(PerlSIO_get_cnt(f) == (c));} STMT_END
76ced9ad 119#define PerlIO_fast_gets(f) 1
760ac839 120#else
a20bf0c3 121#define PerlIO_set_ptrcnt(f,p,c) abort()
760ac839 122#endif
a7ffa9b9 123#endif
124#endif
760ac839 125
126#else /* USE_STDIO_PTR */
127
128#define PerlIO_has_cntptr(f) 0
c7ae39e5 129#define PerlIO_canset_cnt(f) 0
a20bf0c3 130#define PerlIO_get_cnt(f) (abort(),0)
131#define PerlIO_get_ptr(f) (abort(),(void *)0)
132#define PerlIO_set_cnt(f,c) abort()
133#define PerlIO_set_ptrcnt(f,p,c) abort()
760ac839 134
135#endif /* USE_STDIO_PTR */
136
137#ifndef PerlIO_fast_gets
76ced9ad 138#define PerlIO_fast_gets(f) 0
760ac839 139#endif
140
141
142#ifdef FILE_base
76ced9ad 143#define PerlIO_has_base(f) 1
362d0d44 144#define PerlIO_get_base(f) PerlSIO_get_base(f)
145#define PerlIO_get_bufsiz(f) PerlSIO_get_bufsiz(f)
760ac839 146#else
147#define PerlIO_has_base(f) 0
a20bf0c3 148#define PerlIO_get_base(f) (abort(),(void *)0)
149#define PerlIO_get_bufsiz(f) (abort(),0)
760ac839 150#endif
760ac839 151
afd1eb53 152#endif /* NETWARE */
760ac839 153#endif /* PERLIO_IS_STDIO */