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(Retracted). See #3913.
[perl5.git] / perlsdio.h
CommitLineData
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1/*
2 * Although we may not want stdio to be used including <stdio.h> here
3 * avoids issues where stdio.h has strange side effects
4 */
5#include <stdio.h>
6
7#ifdef PERLIO_IS_STDIO
8/*
9 * Make this as close to original stdio as possible.
10 */
11#define PerlIO FILE
12#define PerlIO_stderr() stderr
13#define PerlIO_stdout() stdout
14#define PerlIO_stdin() stdin
15
16#define PerlIO_printf fprintf
17#define PerlIO_stdoutf printf
18#define PerlIO_vprintf(f,fmt,a) vfprintf(f,fmt,a)
760ac839 19#define PerlIO_write(f,buf,count) fwrite1(buf,1,count,f)
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20#define PerlIO_open fopen
21#define PerlIO_fdopen fdopen
22#define PerlIO_reopen freopen
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23#define PerlIO_close(f) fclose(f)
24#define PerlIO_puts(f,s) fputs(s,f)
25#define PerlIO_putc(f,c) fputc(c,f)
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26#if defined(VMS)
27# if defined(__DECC)
28 /* Unusual definition of ungetc() here to accomodate fast_sv_gets()'
29 * belief that it can mix getc/ungetc with reads from stdio buffer */
30 int decc$ungetc(int __c, FILE *__stream);
31# define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \
32 ((*(f) && !((*(f))->_flag & _IONBF) && \
33 ((*(f))->_ptr > (*(f))->_base)) ? \
34 ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f)))
35# else
36# define PerlIO_ungetc(f,c) ungetc(c,f)
37# endif
38 /* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old
39 * VAXCRTL which causes read from a pipe after EOF has been returned
40 * once to hang.
aa689395 41 */
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42# define PerlIO_getc(f) \
43 (feof(f) ? EOF : getc(f))
44# define PerlIO_read(f,buf,count) \
45 (feof(f) ? 0 : (SSize_t)fread(buf,1,count,f))
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46#else
47# define PerlIO_ungetc(f,c) ungetc(c,f)
aa689395 48# define PerlIO_getc(f) getc(f)
5b54f415 49# define PerlIO_read(f,buf,count) (SSize_t)fread(buf,1,count,f)
1ac5d68d 50#endif
760ac839 51#define PerlIO_eof(f) feof(f)
92479810 52#define PerlIO_getname(mTHX_ f,b) fgetname(f,b)
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53#define PerlIO_error(f) ferror(f)
54#define PerlIO_fileno(f) fileno(f)
55#define PerlIO_clearerr(f) clearerr(f)
56#define PerlIO_flush(f) Fflush(f)
57#define PerlIO_tell(f) ftell(f)
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58#if defined(VMS) && !defined(__DECC)
59 /* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */
60# define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w))
61#else
62# define PerlIO_seek(f,o,w) fseek(f,o,w)
63#endif
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64#ifdef HAS_FGETPOS
65#define PerlIO_getpos(f,p) fgetpos(f,p)
66#endif
67#ifdef HAS_FSETPOS
68#define PerlIO_setpos(f,p) fsetpos(f,p)
69#endif
70
71#define PerlIO_rewind(f) rewind(f)
72#define PerlIO_tmpfile() tmpfile()
73
74#define PerlIO_importFILE(f,fl) (f)
75#define PerlIO_exportFILE(f,fl) (f)
76#define PerlIO_findFILE(f) (f)
77#define PerlIO_releaseFILE(p,f) ((void) 0)
78
79#ifdef HAS_SETLINEBUF
80#define PerlIO_setlinebuf(f) setlinebuf(f);
81#else
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82# ifdef CYGWIN
83# define PerlIO_setlinebuf(f)
84# else
85# define PerlIO_setlinebuf(f) setvbuf(f, Nullch, _IOLBF, 0);
86# endif
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87#endif
88
89/* Now our interface to Configure's FILE_xxx macros */
90
91#ifdef USE_STDIO_PTR
92#define PerlIO_has_cntptr(f) 1
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93#define PerlIO_get_ptr(mTHX_ f) FILE_ptr(f)
94#define PerlIO_get_cnt(mTHX_ f) FILE_cnt(f)
760ac839 95
c7ae39e5 96#ifdef STDIO_CNT_LVALUE
760ac839 97#define PerlIO_canset_cnt(f) 1
c7ae39e5 98#ifdef STDIO_PTR_LVALUE
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99#define PerlIO_fast_gets(f) 1
100#endif
92479810 101#define PerlIO_set_cnt(mTHX_ f,c) (FILE_cnt(f) = (c))
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102#else
103#define PerlIO_canset_cnt(f) 0
92479810 104#define PerlIO_set_cnt(mTHX_ f,c) abort()
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105#endif
106
c7ae39e5 107#ifdef STDIO_PTR_LVALUE
92479810 108#define PerlIO_set_ptrcnt(mTHX_ f,p,c) (FILE_ptr(f) = (p), pTHX_ PerlIO_set_cnt(mTHX_ f,c))
760ac839 109#else
92479810 110#define PerlIO_set_ptrcnt(mTHX_ f,p,c) abort()
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111#endif
112
113#else /* USE_STDIO_PTR */
114
115#define PerlIO_has_cntptr(f) 0
c7ae39e5 116#define PerlIO_canset_cnt(f) 0
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117#define PerlIO_get_cnt(mTHX_ f) (abort(),0)
118#define PerlIO_get_ptr(mTHX_ f) (abort(),(void *)0)
119#define PerlIO_set_cnt(mTHX_ f,c) abort()
120#define PerlIO_set_ptrcnt(mTHX_ f,p,c) abort()
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121
122#endif /* USE_STDIO_PTR */
123
124#ifndef PerlIO_fast_gets
125#define PerlIO_fast_gets(f) 0
126#endif
127
128
129#ifdef FILE_base
130#define PerlIO_has_base(f) 1
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131#define PerlIO_get_base(mTHX_ f) FILE_base(f)
132#define PerlIO_get_bufsiz(mTHX_ f) FILE_bufsiz(f)
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133#else
134#define PerlIO_has_base(f) 0
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135#define PerlIO_get_base(mTHX_ f) (abort(),(void *)0)
136#define PerlIO_get_bufsiz(mTHX_ f) (abort(),0)
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137#endif
138#else /* PERLIO_IS_STDIO */
139#ifdef PERL_CORE
140#ifndef PERLIO_NOT_STDIO
141#define PERLIO_NOT_STDIO 1
142#endif
143#endif
144#ifdef PERLIO_NOT_STDIO
145#if PERLIO_NOT_STDIO
146/*
147 * Strong denial of stdio - make all stdio calls (we can think of) errors
148 */
149#include "nostdio.h"
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150#undef fprintf
151#undef tmpfile
152#undef fclose
153#undef fopen
154#undef vfprintf
155#undef fgetc
156#undef fputc
157#undef fputs
158#undef ungetc
159#undef fread
160#undef fwrite
161#undef fgetpos
162#undef fseek
163#undef fsetpos
164#undef ftell
165#undef rewind
166#undef fdopen
167#undef popen
168#undef pclose
169#undef getw
170#undef putw
171#undef freopen
172#undef setbuf
173#undef setvbuf
174#undef fscanf
175#undef fgets
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176#undef getc_unlocked
177#undef putc_unlocked
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178#define fprintf _CANNOT _fprintf_
179#define stdin _CANNOT _stdin_
180#define stdout _CANNOT _stdout_
181#define stderr _CANNOT _stderr_
182#define tmpfile() _CANNOT _tmpfile_
183#define fclose(f) _CANNOT _fclose_
184#define fflush(f) _CANNOT _fflush_
185#define fopen(p,m) _CANNOT _fopen_
186#define freopen(p,m,f) _CANNOT _freopen_
187#define setbuf(f,b) _CANNOT _setbuf_
188#define setvbuf(f,b,x,s) _CANNOT _setvbuf_
189#define fscanf _CANNOT _fscanf_
190#define vfprintf(f,fmt,a) _CANNOT _vfprintf_
191#define fgetc(f) _CANNOT _fgetc_
192#define fgets(s,n,f) _CANNOT _fgets_
193#define fputc(c,f) _CANNOT _fputc_
194#define fputs(s,f) _CANNOT _fputs_
195#define getc(f) _CANNOT _getc_
196#define putc(c,f) _CANNOT _putc_
197#define ungetc(c,f) _CANNOT _ungetc_
198#define fread(b,s,c,f) _CANNOT _fread_
199#define fwrite(b,s,c,f) _CANNOT _fwrite_
200#define fgetpos(f,p) _CANNOT _fgetpos_
201#define fseek(f,o,w) _CANNOT _fseek_
202#define fsetpos(f,p) _CANNOT _fsetpos_
203#define ftell(f) _CANNOT _ftell_
204#define rewind(f) _CANNOT _rewind_
205#define clearerr(f) _CANNOT _clearerr_
206#define feof(f) _CANNOT _feof_
207#define ferror(f) _CANNOT _ferror_
208#define __filbuf(f) _CANNOT __filbuf_
209#define __flsbuf(c,f) _CANNOT __flsbuf_
210#define _filbuf(f) _CANNOT _filbuf_
211#define _flsbuf(c,f) _CANNOT _flsbuf_
212#define fdopen(fd,p) _CANNOT _fdopen_
213#define fileno(f) _CANNOT _fileno_
214#define flockfile(f) _CANNOT _flockfile_
215#define ftrylockfile(f) _CANNOT _ftrylockfile_
216#define funlockfile(f) _CANNOT _funlockfile_
217#define getc_unlocked(f) _CANNOT _getc_unlocked_
218#define putc_unlocked(c,f) _CANNOT _putc_unlocked_
219#define popen(c,m) _CANNOT _popen_
220#define getw(f) _CANNOT _getw_
221#define putw(v,f) _CANNOT _putw_
222#define pclose(f) _CANNOT _pclose_
223
224#else /* if PERLIO_NOT_STDIO */
225/*
226 * PERLIO_NOT_STDIO defined as 0
227 * Declares that both PerlIO and stdio can be used
228 */
229#endif /* if PERLIO_NOT_STDIO */
230#else /* ifdef PERLIO_NOT_STDIO */
231/*
232 * PERLIO_NOT_STDIO not defined
233 * This is "source level" stdio compatibility mode.
234 */
235#include "nostdio.h"
236#undef FILE
237#define FILE PerlIO
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238#undef fprintf
239#undef tmpfile
240#undef fclose
241#undef fopen
242#undef vfprintf
243#undef fgetc
4b534093 244#undef getc_unlocked
33dcbb9a 245#undef fputc
4b534093 246#undef putc_unlocked
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247#undef fputs
248#undef ungetc
249#undef fread
250#undef fwrite
251#undef fgetpos
252#undef fseek
253#undef fsetpos
254#undef ftell
255#undef rewind
256#undef fdopen
257#undef popen
258#undef pclose
259#undef getw
260#undef putw
261#undef freopen
262#undef setbuf
263#undef setvbuf
264#undef fscanf
265#undef fgets
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266#define fprintf PerlIO_printf
267#define stdin PerlIO_stdin()
268#define stdout PerlIO_stdout()
269#define stderr PerlIO_stderr()
270#define tmpfile() PerlIO_tmpfile()
271#define fclose(f) PerlIO_close(f)
272#define fflush(f) PerlIO_flush(f)
273#define fopen(p,m) PerlIO_open(p,m)
274#define vfprintf(f,fmt,a) PerlIO_vprintf(f,fmt,a)
275#define fgetc(f) PerlIO_getc(f)
276#define fputc(c,f) PerlIO_putc(f,c)
277#define fputs(s,f) PerlIO_puts(f,s)
278#define getc(f) PerlIO_getc(f)
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279#ifdef getc_unlocked
280#undef getc_unlocked
281#endif
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282#define getc_unlocked(f) PerlIO_getc(f)
283#define putc(c,f) PerlIO_putc(f,c)
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284#ifdef putc_unlocked
285#undef putc_unlocked
286#endif
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287#define putc_unlocked(c,f) PerlIO_putc(c,f)
288#define ungetc(c,f) PerlIO_ungetc(f,c)
289#if 0
290/* return values of read/write need work */
291#define fread(b,s,c,f) PerlIO_read(f,b,(s*c))
292#define fwrite(b,s,c,f) PerlIO_write(f,b,(s*c))
293#else
294#define fread(b,s,c,f) _CANNOT fread
295#define fwrite(b,s,c,f) _CANNOT fwrite
296#endif
297#define fgetpos(f,p) PerlIO_getpos(f,p)
298#define fseek(f,o,w) PerlIO_seek(f,o,w)
299#define fsetpos(f,p) PerlIO_setpos(f,p)
300#define ftell(f) PerlIO_tell(f)
301#define rewind(f) PerlIO_rewind(f)
302#define clearerr(f) PerlIO_clearerr(f)
303#define feof(f) PerlIO_eof(f)
304#define ferror(f) PerlIO_error(f)
305#define fdopen(fd,p) PerlIO_fdopen(fd,p)
306#define fileno(f) PerlIO_fileno(f)
307#define popen(c,m) my_popen(c,m)
308#define pclose(f) my_pclose(f)
309
310#define __filbuf(f) _CANNOT __filbuf_
311#define _filbuf(f) _CANNOT _filbuf_
312#define __flsbuf(c,f) _CANNOT __flsbuf_
313#define _flsbuf(c,f) _CANNOT _flsbuf_
314#define getw(f) _CANNOT _getw_
315#define putw(v,f) _CANNOT _putw_
316#define flockfile(f) _CANNOT _flockfile_
317#define ftrylockfile(f) _CANNOT _ftrylockfile_
318#define funlockfile(f) _CANNOT _funlockfile_
319#define freopen(p,m,f) _CANNOT _freopen_
320#define setbuf(f,b) _CANNOT _setbuf_
321#define setvbuf(f,b,x,s) _CANNOT _setvbuf_
322#define fscanf _CANNOT _fscanf_
323#define fgets(s,n,f) _CANNOT _fgets_
324
325#endif /* ifdef PERLIO_NOT_STDIO */
326#endif /* PERLIO_IS_STDIO */