xref: /openbsd/gnu/usr.bin/perl/perlsdio.h (revision 133306f0)
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)
19 #define PerlIO_write(f,buf,count)	fwrite1(buf,1,count,f)
20 #define PerlIO_open			fopen
21 #define PerlIO_fdopen			fdopen
22 #define PerlIO_reopen		freopen
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)
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.
41     */
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))
46 #else
47 #  define PerlIO_ungetc(f,c)		ungetc(c,f)
48 #  define PerlIO_getc(f)		getc(f)
49 #  define PerlIO_read(f,buf,count)	(SSize_t)fread(buf,1,count,f)
50 #endif
51 #define PerlIO_eof(f)			feof(f)
52 #define PerlIO_getname(f,b)		fgetname(f,b)
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)
58 #if defined(USE_64_BIT_STDIO) && defined(HAS_FTELLO) && !defined(USE_FTELL64)
59 #define ftell ftello
60 #endif
61 #if defined(VMS) && !defined(__DECC)
62    /* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */
63 #  define PerlIO_seek(f,o,w)	(((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w))
64 #else
65 #  define PerlIO_seek(f,o,w)		fseek(f,o,w)
66 #endif
67 #if defined(USE_64_BIT_STDIO) && defined(HAS_FSEEKO) && !defined(USE_FSEEK64)
68 #define fseek fseeko
69 #endif
70 #ifdef HAS_FGETPOS
71 #define PerlIO_getpos(f,p)		fgetpos(f,p)
72 #endif
73 #ifdef HAS_FSETPOS
74 #define PerlIO_setpos(f,p)		fsetpos(f,p)
75 #endif
76 
77 #define PerlIO_rewind(f)		rewind(f)
78 #define PerlIO_tmpfile()		tmpfile()
79 
80 #define PerlIO_importFILE(f,fl)		(f)
81 #define PerlIO_exportFILE(f,fl)		(f)
82 #define PerlIO_findFILE(f)		(f)
83 #define PerlIO_releaseFILE(p,f)		((void) 0)
84 
85 #ifdef HAS_SETLINEBUF
86 #define PerlIO_setlinebuf(f)		setlinebuf(f);
87 #else
88 #define PerlIO_setlinebuf(f)		setvbuf(f, Nullch, _IOLBF, 0);
89 #endif
90 
91 /* Now our interface to Configure's FILE_xxx macros */
92 
93 #ifdef USE_STDIO_PTR
94 #define PerlIO_has_cntptr(f)		1
95 #define PerlIO_get_ptr(f)		FILE_ptr(f)
96 #define PerlIO_get_cnt(f)		FILE_cnt(f)
97 
98 #ifdef STDIO_CNT_LVALUE
99 #define PerlIO_canset_cnt(f)		1
100 #ifdef STDIO_PTR_LVALUE
101 #define PerlIO_fast_gets(f)		1
102 #endif
103 #define PerlIO_set_cnt(f,c)		(FILE_cnt(f) = (c))
104 #else
105 #define PerlIO_canset_cnt(f)		0
106 #define PerlIO_set_cnt(f,c)		abort()
107 #endif
108 
109 #ifdef STDIO_PTR_LVALUE
110 #define PerlIO_set_ptrcnt(f,p,c)	(FILE_ptr(f) = (p), PerlIO_set_cnt(f,c))
111 #else
112 #define PerlIO_set_ptrcnt(f,p,c)	abort()
113 #endif
114 
115 #else  /* USE_STDIO_PTR */
116 
117 #define PerlIO_has_cntptr(f)		0
118 #define PerlIO_canset_cnt(f)		0
119 #define PerlIO_get_cnt(f)		(abort(),0)
120 #define PerlIO_get_ptr(f)		(abort(),(void *)0)
121 #define PerlIO_set_cnt(f,c)		abort()
122 #define PerlIO_set_ptrcnt(f,p,c)	abort()
123 
124 #endif /* USE_STDIO_PTR */
125 
126 #ifndef PerlIO_fast_gets
127 #define PerlIO_fast_gets(f)		0
128 #endif
129 
130 
131 #ifdef FILE_base
132 #define PerlIO_has_base(f)		1
133 #define PerlIO_get_base(f)		FILE_base(f)
134 #define PerlIO_get_bufsiz(f)		FILE_bufsiz(f)
135 #else
136 #define PerlIO_has_base(f)		0
137 #define PerlIO_get_base(f)		(abort(),(void *)0)
138 #define PerlIO_get_bufsiz(f)		(abort(),0)
139 #endif
140 #else /* PERLIO_IS_STDIO */
141 #ifdef PERL_CORE
142 #ifndef PERLIO_NOT_STDIO
143 #define PERLIO_NOT_STDIO 1
144 #endif
145 #endif
146 #ifdef PERLIO_NOT_STDIO
147 #if PERLIO_NOT_STDIO
148 /*
149  * Strong denial of stdio - make all stdio calls (we can think of) errors
150  */
151 #include "nostdio.h"
152 #undef fprintf
153 #undef tmpfile
154 #undef fclose
155 #undef fopen
156 #undef vfprintf
157 #undef fgetc
158 #undef fputc
159 #undef fputs
160 #undef ungetc
161 #undef fread
162 #undef fwrite
163 #undef fgetpos
164 #undef fseek
165 #undef fsetpos
166 #undef ftell
167 #undef rewind
168 #undef fdopen
169 #undef popen
170 #undef pclose
171 #undef getw
172 #undef putw
173 #undef freopen
174 #undef setbuf
175 #undef setvbuf
176 #undef fscanf
177 #undef fgets
178 #undef getc_unlocked
179 #undef putc_unlocked
180 #define fprintf    _CANNOT _fprintf_
181 #define stdin      _CANNOT _stdin_
182 #define stdout     _CANNOT _stdout_
183 #define stderr     _CANNOT _stderr_
184 #define tmpfile()  _CANNOT _tmpfile_
185 #define fclose(f)  _CANNOT _fclose_
186 #define fflush(f)  _CANNOT _fflush_
187 #define fopen(p,m)  _CANNOT _fopen_
188 #define freopen(p,m,f)  _CANNOT _freopen_
189 #define setbuf(f,b)  _CANNOT _setbuf_
190 #define setvbuf(f,b,x,s)  _CANNOT _setvbuf_
191 #define fscanf  _CANNOT _fscanf_
192 #define vfprintf(f,fmt,a)  _CANNOT _vfprintf_
193 #define fgetc(f)  _CANNOT _fgetc_
194 #define fgets(s,n,f)  _CANNOT _fgets_
195 #define fputc(c,f)  _CANNOT _fputc_
196 #define fputs(s,f)  _CANNOT _fputs_
197 #define getc(f)  _CANNOT _getc_
198 #define putc(c,f)  _CANNOT _putc_
199 #define ungetc(c,f)  _CANNOT _ungetc_
200 #define fread(b,s,c,f)  _CANNOT _fread_
201 #define fwrite(b,s,c,f)  _CANNOT _fwrite_
202 #define fgetpos(f,p)  _CANNOT _fgetpos_
203 #define fseek(f,o,w)  _CANNOT _fseek_
204 #define fsetpos(f,p)  _CANNOT _fsetpos_
205 #define ftell(f)  _CANNOT _ftell_
206 #define rewind(f)  _CANNOT _rewind_
207 #define clearerr(f)  _CANNOT _clearerr_
208 #define feof(f)  _CANNOT _feof_
209 #define ferror(f)  _CANNOT _ferror_
210 #define __filbuf(f)  _CANNOT __filbuf_
211 #define __flsbuf(c,f)  _CANNOT __flsbuf_
212 #define _filbuf(f)  _CANNOT _filbuf_
213 #define _flsbuf(c,f)  _CANNOT _flsbuf_
214 #define fdopen(fd,p)  _CANNOT _fdopen_
215 #define fileno(f)  _CANNOT _fileno_
216 #define flockfile(f)  _CANNOT _flockfile_
217 #define ftrylockfile(f)  _CANNOT _ftrylockfile_
218 #define funlockfile(f)  _CANNOT _funlockfile_
219 #define getc_unlocked(f)  _CANNOT _getc_unlocked_
220 #define putc_unlocked(c,f)  _CANNOT _putc_unlocked_
221 #define popen(c,m)  _CANNOT _popen_
222 #define getw(f)  _CANNOT _getw_
223 #define putw(v,f)  _CANNOT _putw_
224 #define pclose(f)  _CANNOT _pclose_
225 
226 #else /* if PERLIO_NOT_STDIO */
227 /*
228  * PERLIO_NOT_STDIO defined as 0
229  * Declares that both PerlIO and stdio can be used
230  */
231 #endif /* if PERLIO_NOT_STDIO */
232 #else  /* ifdef PERLIO_NOT_STDIO */
233 /*
234  * PERLIO_NOT_STDIO not defined
235  * This is "source level" stdio compatibility mode.
236  */
237 #include "nostdio.h"
238 #undef FILE
239 #define FILE			PerlIO
240 #undef fprintf
241 #undef tmpfile
242 #undef fclose
243 #undef fopen
244 #undef vfprintf
245 #undef fgetc
246 #undef getc_unlocked
247 #undef fputc
248 #undef putc_unlocked
249 #undef fputs
250 #undef ungetc
251 #undef fread
252 #undef fwrite
253 #undef fgetpos
254 #undef fseek
255 #undef fsetpos
256 #undef ftell
257 #undef rewind
258 #undef fdopen
259 #undef popen
260 #undef pclose
261 #undef getw
262 #undef putw
263 #undef freopen
264 #undef setbuf
265 #undef setvbuf
266 #undef fscanf
267 #undef fgets
268 #define fprintf			PerlIO_printf
269 #define stdin			PerlIO_stdin()
270 #define stdout			PerlIO_stdout()
271 #define stderr			PerlIO_stderr()
272 #define tmpfile()		PerlIO_tmpfile()
273 #define fclose(f)		PerlIO_close(f)
274 #define fflush(f)		PerlIO_flush(f)
275 #define fopen(p,m)		PerlIO_open(p,m)
276 #define vfprintf(f,fmt,a)	PerlIO_vprintf(f,fmt,a)
277 #define fgetc(f)		PerlIO_getc(f)
278 #define fputc(c,f)		PerlIO_putc(f,c)
279 #define fputs(s,f)		PerlIO_puts(f,s)
280 #define getc(f)			PerlIO_getc(f)
281 #ifdef getc_unlocked
282 #undef getc_unlocked
283 #endif
284 #define getc_unlocked(f)	PerlIO_getc(f)
285 #define putc(c,f)		PerlIO_putc(f,c)
286 #ifdef putc_unlocked
287 #undef putc_unlocked
288 #endif
289 #define putc_unlocked(c,f)	PerlIO_putc(c,f)
290 #define ungetc(c,f)		PerlIO_ungetc(f,c)
291 #if 0
292 /* return values of read/write need work */
293 #define fread(b,s,c,f)		PerlIO_read(f,b,(s*c))
294 #define fwrite(b,s,c,f)		PerlIO_write(f,b,(s*c))
295 #else
296 #define fread(b,s,c,f)		_CANNOT fread
297 #define fwrite(b,s,c,f)		_CANNOT fwrite
298 #endif
299 #define fgetpos(f,p)		PerlIO_getpos(f,p)
300 #define fseek(f,o,w)		PerlIO_seek(f,o,w)
301 #define fsetpos(f,p)		PerlIO_setpos(f,p)
302 #define ftell(f)		PerlIO_tell(f)
303 #define rewind(f)		PerlIO_rewind(f)
304 #define clearerr(f)		PerlIO_clearerr(f)
305 #define feof(f)			PerlIO_eof(f)
306 #define ferror(f)		PerlIO_error(f)
307 #define fdopen(fd,p)		PerlIO_fdopen(fd,p)
308 #define fileno(f)		PerlIO_fileno(f)
309 #define popen(c,m)		my_popen(c,m)
310 #define pclose(f)		my_pclose(f)
311 
312 #define __filbuf(f)		_CANNOT __filbuf_
313 #define _filbuf(f)		_CANNOT _filbuf_
314 #define __flsbuf(c,f)		_CANNOT __flsbuf_
315 #define _flsbuf(c,f)		_CANNOT _flsbuf_
316 #define getw(f)			_CANNOT _getw_
317 #define putw(v,f)		_CANNOT _putw_
318 #define flockfile(f)		_CANNOT _flockfile_
319 #define ftrylockfile(f)		_CANNOT _ftrylockfile_
320 #define funlockfile(f)		_CANNOT _funlockfile_
321 #define freopen(p,m,f)		_CANNOT _freopen_
322 #define setbuf(f,b)		_CANNOT _setbuf_
323 #define setvbuf(f,b,x,s)	_CANNOT _setvbuf_
324 #define fscanf			_CANNOT _fscanf_
325 #define fgets(s,n,f)		_CANNOT _fgets_
326 
327 #endif /* ifdef PERLIO_NOT_STDIO */
328 #endif /* PERLIO_IS_STDIO */
329