1 /***********************************************************************
2 * *
3 * This software is part of the ast package *
4 * Copyright (c) 1985-2010 AT&T Intellectual Property *
5 * and is licensed under the *
6 * Common Public License, Version 1.0 *
7 * by AT&T Intellectual Property *
8 * *
9 * A copy of the License is available at *
10 * http://www.opensource.org/licenses/cpl1.0.txt *
11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
12 * *
13 * Information and Software Systems Research *
14 * AT&T Research *
15 * Florham Park NJ *
16 * *
17 * Glenn Fowler <gsf@research.att.com> *
18 * David Korn <dgk@research.att.com> *
19 * Phong Vo <kpv@research.att.com> *
20 * *
21 ***********************************************************************/
22 #ifndef _SFIO_H
23 #define _SFIO_H 1
24
25 #define SFIO_VERSION 20080717L
26
27 /* Public header file for the sfio library
28 **
29 ** Written by Kiem-Phong Vo
30 */
31
32 typedef struct _sfio_s Sfio_t;
33 typedef struct _sfdisc_s Sfdisc_t;
34
35 #if defined(_AST_STD_H) || defined(_PACKAGE_ast) && defined(_SFIO_PRIVATE)
36 #include <ast_std.h>
37 #else
38 #include <ast_common.h>
39 #endif /* _PACKAGE_ast */
40
41 /* Sfoff_t should be large enough for largest file address */
42 #define Sfoff_t intmax_t
43 #define Sflong_t intmax_t
44 #define Sfulong_t uintmax_t
45 #define Sfdouble_t _ast_fltmax_t
46
47 typedef ssize_t (*Sfread_f)_ARG_((Sfio_t*, Void_t*, size_t, Sfdisc_t*));
48 typedef ssize_t (*Sfwrite_f)_ARG_((Sfio_t*, const Void_t*, size_t, Sfdisc_t*));
49 typedef Sfoff_t (*Sfseek_f)_ARG_((Sfio_t*, Sfoff_t, int, Sfdisc_t*));
50 typedef int (*Sfexcept_f)_ARG_((Sfio_t*, int, Void_t*, Sfdisc_t*));
51 typedef int (*Sfwalk_f)_ARG_((Sfio_t*, Void_t*));
52
53 /* discipline structure */
54 struct _sfdisc_s
55 { Sfread_f readf; /* read function */
56 Sfwrite_f writef; /* write function */
57 Sfseek_f seekf; /* seek function */
58 Sfexcept_f exceptf; /* to handle exceptions */
59 Sfdisc_t* disc; /* the continuing discipline */
60 };
61
62 #include <sfio_s.h>
63
64 /* formatting environment */
65 typedef struct _sffmt_s Sffmt_t;
66 typedef int (*Sffmtext_f)_ARG_((Sfio_t*, Void_t*, Sffmt_t*));
67 typedef int (*Sffmtevent_f)_ARG_((Sfio_t*, int, Void_t*, Sffmt_t*));
68 struct _sffmt_s
69 { long version;/* version of this structure */
70 Sffmtext_f extf; /* function to process arguments */
71 Sffmtevent_f eventf; /* process events */
72
73 char* form; /* format string to stack */
74 va_list args; /* corresponding arg list */
75
76 int fmt; /* format character */
77 ssize_t size; /* object size */
78 int flags; /* formatting flags */
79 int width; /* width of field */
80 int precis; /* precision required */
81 int base; /* conversion base */
82
83 char* t_str; /* type string */
84 ssize_t n_str; /* length of t_str */
85
86 Void_t* mbs; /* multibyte state for format string */
87
88 Void_t* none; /* unused for now */
89 };
90 #define sffmtversion(fe,type) \
91 ((type) ? ((fe)->version = SFIO_VERSION) : (fe)->version)
92
93 #define SFFMT_SSHORT 000000010 /* 'hh' flag, char */
94 #define SFFMT_TFLAG 000000020 /* 't' flag, ptrdiff_t */
95 #define SFFMT_ZFLAG 000000040 /* 'z' flag, size_t */
96
97 #define SFFMT_LEFT 000000100 /* left-justification */
98 #define SFFMT_SIGN 000000200 /* must have a sign */
99 #define SFFMT_BLANK 000000400 /* if not signed, prepend a blank */
100 #define SFFMT_ZERO 000001000 /* zero-padding on the left */
101 #define SFFMT_ALTER 000002000 /* alternate formatting */
102 #define SFFMT_THOUSAND 000004000 /* thousand grouping */
103 #define SFFMT_SKIP 000010000 /* skip assignment in scanf() */
104 #define SFFMT_SHORT 000020000 /* 'h' flag */
105 #define SFFMT_LONG 000040000 /* 'l' flag */
106 #define SFFMT_LLONG 000100000 /* 'll' flag */
107 #define SFFMT_LDOUBLE 000200000 /* 'L' flag */
108 #define SFFMT_VALUE 000400000 /* value is returned */
109 #define SFFMT_ARGPOS 001000000 /* getting arg for $ patterns */
110 #define SFFMT_IFLAG 002000000 /* 'I' flag */
111 #define SFFMT_JFLAG 004000000 /* 'j' flag, intmax_t */
112 #define SFFMT_CENTER 010000000 /* '=' flag, center justification */
113 #define SFFMT_SET 017777770 /* flags settable on calling extf */
114
115 /* for sfmutex() call */
116 #define SFMTX_LOCK 0 /* up mutex count */
117 #define SFMTX_TRYLOCK 1 /* try to up mutex count */
118 #define SFMTX_UNLOCK 2 /* down mutex count */
119 #define SFMTX_CLRLOCK 3 /* clear mutex count */
120
121 /* various constants */
122 #ifndef NULL
123 #define NULL 0
124 #endif
125 #ifndef EOF
126 #define EOF (-1)
127 #endif
128 #ifndef SEEK_SET
129 #define SEEK_SET 0
130 #define SEEK_CUR 1
131 #define SEEK_END 2
132 #endif
133
134 /* bits for various types of files */
135 #define SF_READ 0000001 /* open for reading */
136 #define SF_WRITE 0000002 /* open for writing */
137 #define SF_STRING 0000004 /* a string stream */
138 #define SF_APPENDWR 0000010 /* file is in append mode only */
139 #define SF_MALLOC 0000020 /* buffer is malloc-ed */
140 #define SF_LINE 0000040 /* line buffering */
141 #define SF_SHARE 0000100 /* stream with shared file descriptor */
142 #define SF_EOF 0000200 /* eof was detected */
143 #define SF_ERROR 0000400 /* an error happened */
144 #define SF_STATIC 0001000 /* a stream that cannot be freed */
145 #define SF_IOCHECK 0002000 /* call exceptf before doing IO */
146 #define SF_PUBLIC 0004000 /* SF_SHARE and follow physical seek */
147 #define SF_MTSAFE 0010000 /* need thread safety */
148 #define SF_WHOLE 0020000 /* preserve wholeness of sfwrite/sfputr */
149 #define SF_IOINTR 0040000 /* return on interrupts */
150 #define SF_WCWIDTH 0100000 /* wcwidth display stream */
151
152 #define SF_FLAGS 0177177 /* PUBLIC FLAGS PASSABLE TO SFNEW() */
153 #define SF_SETS 0177163 /* flags passable to sfset() */
154
155 #ifndef _SF_NO_OBSOLETE
156 #define SF_BUFCONST 0400000 /* unused flag - for compatibility only */
157 #endif
158
159 /* for sfgetr/sfreserve to hold a record */
160 #define SF_LOCKR 0000010 /* lock record, stop access to stream */
161 #define SF_LASTR 0000020 /* get the last incomplete record */
162
163 /* exception events: SF_NEW(0), SF_READ(1), SF_WRITE(2) and the below */
164 #define SF_SEEK 3 /* seek error */
165 #define SF_CLOSING 4 /* when stream is about to be closed */
166 #define SF_DPUSH 5 /* when discipline is being pushed */
167 #define SF_DPOP 6 /* when discipline is being popped */
168 #define SF_DPOLL 7 /* see if stream is ready for I/O */
169 #define SF_DBUFFER 8 /* buffer not empty during push or pop */
170 #define SF_SYNC 9 /* announcing start/end synchronization */
171 #define SF_PURGE 10 /* a sfpurge() call was issued */
172 #define SF_FINAL 11 /* closing is done except stream free */
173 #define SF_READY 12 /* a polled stream is ready */
174 #define SF_LOCKED 13 /* stream is in a locked state */
175 #define SF_ATEXIT 14 /* process is exiting */
176 #define SF_EVENT 100 /* start of user-defined events */
177
178 /* for stack and disciplines */
179 #define SF_POPSTACK ((Sfio_t*)0) /* pop the stream stack */
180 #define SF_POPDISC ((Sfdisc_t*)0) /* pop the discipline stack */
181
182 /* for the notify function and discipline exception */
183 #define SF_NEW 0 /* new stream */
184 #define SF_SETFD (-1) /* about to set the file descriptor */
185 #define SF_MTACCESS (-2) /* starting a multi-threaded stream */
186
187 #define SF_BUFSIZE 8192 /* default buffer size */
188 #define SF_UNBOUND (-1) /* unbounded buffer size */
189
190 /* namespace incursion workarounds -- migrate to the new names */
191 #if !_mac_SF_APPEND
192 #define SF_APPEND SF_APPENDWR /* BSDI sys/stat.h */
193 #endif
194 #if !_mac_SF_CLOSE
195 #define SF_CLOSE SF_CLOSING /* AIX sys/socket.h */
196 #endif
197
198 _BEGIN_EXTERNS_
199
200 /* standard in/out/err streams */
201
202 #if _BLD_sfio && defined(__EXPORT__)
203 #define extern extern __EXPORT__
204 #endif
205 #if !_BLD_sfio && defined(__IMPORT__)
206 #define extern extern __IMPORT__
207 #endif
208
209 extern ssize_t _Sfi;
210 extern ssize_t _Sfmaxr;
211
212 extern Sfio_t* sfstdin;
213 extern Sfio_t* sfstdout;
214 extern Sfio_t* sfstderr;
215
216 #if _UWIN
217 #undef extern
218 #endif
219
220 extern Sfio_t _Sfstdin;
221 extern Sfio_t _Sfstdout;
222 extern Sfio_t _Sfstderr;
223
224 #undef extern
225
226 #if _BLD_sfio && defined(__EXPORT__)
227 #define extern __EXPORT__
228 #endif
229
230 extern Sfio_t* sfnew _ARG_((Sfio_t*, Void_t*, size_t, int, int));
231 extern Sfio_t* sfopen _ARG_((Sfio_t*, const char*, const char*));
232 extern Sfio_t* sfpopen _ARG_((Sfio_t*, const char*, const char*));
233 extern Sfio_t* sfstack _ARG_((Sfio_t*, Sfio_t*));
234 extern Sfio_t* sfswap _ARG_((Sfio_t*, Sfio_t*));
235 extern Sfio_t* sftmp _ARG_((size_t));
236 extern int sfwalk _ARG_((Sfwalk_f, Void_t*, int));
237 extern int sfpurge _ARG_((Sfio_t*));
238 extern int sfpoll _ARG_((Sfio_t**, int, int));
239 extern Void_t* sfreserve _ARG_((Sfio_t*, ssize_t, int));
240 extern int sfresize _ARG_((Sfio_t*, Sfoff_t));
241 extern int sfsync _ARG_((Sfio_t*));
242 extern int sfclrlock _ARG_((Sfio_t*));
243 extern Void_t* sfsetbuf _ARG_((Sfio_t*, Void_t*, size_t));
244 extern Sfdisc_t* sfdisc _ARG_((Sfio_t*,Sfdisc_t*));
245 extern int sfraise _ARG_((Sfio_t*, int, Void_t*));
246 extern int sfnotify _ARG_((void(*)(Sfio_t*, int, void*)));
247 extern int sfset _ARG_((Sfio_t*, int, int));
248 extern int sfsetfd _ARG_((Sfio_t*, int));
249 extern Sfio_t* sfpool _ARG_((Sfio_t*, Sfio_t*, int));
250 extern ssize_t sfread _ARG_((Sfio_t*, Void_t*, size_t));
251 extern ssize_t sfwrite _ARG_((Sfio_t*, const Void_t*, size_t));
252 extern Sfoff_t sfmove _ARG_((Sfio_t*, Sfio_t*, Sfoff_t, int));
253 extern int sfclose _ARG_((Sfio_t*));
254 extern Sfoff_t sftell _ARG_((Sfio_t*));
255 extern Sfoff_t sfseek _ARG_((Sfio_t*, Sfoff_t, int));
256 extern ssize_t sfputr _ARG_((Sfio_t*, const char*, int));
257 extern char* sfgetr _ARG_((Sfio_t*, int, int));
258 extern ssize_t sfnputc _ARG_((Sfio_t*, int, size_t));
259 extern int sfungetc _ARG_((Sfio_t*, int));
260 extern int sfprintf _ARG_((Sfio_t*, const char*, ...));
261 extern char* sfprints _ARG_((const char*, ...));
262 extern ssize_t sfsprintf _ARG_((char*, size_t, const char*, ...));
263 extern ssize_t sfvsprintf _ARG_((char*, size_t, const char*, va_list));
264 extern int sfvprintf _ARG_((Sfio_t*, const char*, va_list));
265 extern int sfscanf _ARG_((Sfio_t*, const char*, ...));
266 extern int sfsscanf _ARG_((const char*, const char*, ...));
267 extern int sfvsscanf _ARG_((const char*, const char*, va_list));
268 extern int sfvscanf _ARG_((Sfio_t*, const char*, va_list));
269
270 /* mutex locking for thread-safety */
271 extern int sfmutex _ARG_((Sfio_t*, int));
272
273 /* io functions with discipline continuation */
274 extern ssize_t sfrd _ARG_((Sfio_t*, Void_t*, size_t, Sfdisc_t*));
275 extern ssize_t sfwr _ARG_((Sfio_t*, const Void_t*, size_t, Sfdisc_t*));
276 extern Sfoff_t sfsk _ARG_((Sfio_t*, Sfoff_t, int, Sfdisc_t*));
277 extern ssize_t sfpkrd _ARG_((int, Void_t*, size_t, int, long, int));
278
279 /* portable handling of primitive types */
280 extern int sfdlen _ARG_((Sfdouble_t));
281 extern int sfllen _ARG_((Sflong_t));
282 extern int sfulen _ARG_((Sfulong_t));
283
284 extern int sfputd _ARG_((Sfio_t*, Sfdouble_t));
285 extern int sfputl _ARG_((Sfio_t*, Sflong_t));
286 extern int sfputu _ARG_((Sfio_t*, Sfulong_t));
287 extern int sfputm _ARG_((Sfio_t*, Sfulong_t, Sfulong_t));
288 extern int sfputc _ARG_((Sfio_t*, int));
289
290 extern Sfdouble_t sfgetd _ARG_((Sfio_t*));
291 extern Sflong_t sfgetl _ARG_((Sfio_t*));
292 extern Sfulong_t sfgetu _ARG_((Sfio_t*));
293 extern Sfulong_t sfgetm _ARG_((Sfio_t*, Sfulong_t));
294 extern int sfgetc _ARG_((Sfio_t*));
295
296 extern int _sfputd _ARG_((Sfio_t*, Sfdouble_t));
297 extern int _sfputl _ARG_((Sfio_t*, Sflong_t));
298 extern int _sfputu _ARG_((Sfio_t*, Sfulong_t));
299 extern int _sfputm _ARG_((Sfio_t*, Sfulong_t, Sfulong_t));
300 extern int _sfflsbuf _ARG_((Sfio_t*, int));
301
302 extern int _sffilbuf _ARG_((Sfio_t*, int));
303
304 extern int _sfdlen _ARG_((Sfdouble_t));
305 extern int _sfllen _ARG_((Sflong_t));
306 extern int _sfulen _ARG_((Sfulong_t));
307
308 /* miscellaneous function analogues of fast in-line functions */
309 extern Sfoff_t sfsize _ARG_((Sfio_t*));
310 extern int sfclrerr _ARG_((Sfio_t*));
311 extern int sfeof _ARG_((Sfio_t*));
312 extern int sferror _ARG_((Sfio_t*));
313 extern int sffileno _ARG_((Sfio_t*));
314 extern int sfstacked _ARG_((Sfio_t*));
315 extern ssize_t sfvalue _ARG_((Sfio_t*));
316 extern ssize_t sfslen _ARG_((void));
317 extern ssize_t sfmaxr _ARG_((ssize_t, int));
318
319 #undef extern
320 _END_EXTERNS_
321
322 /* coding long integers in a portable and compact fashion */
323 #define SF_SBITS 6
324 #define SF_UBITS 7
325 #define SF_BBITS 8
326 #define SF_SIGN (1 << SF_SBITS)
327 #define SF_MORE (1 << SF_UBITS)
328 #define SF_BYTE (1 << SF_BBITS)
329 #define SF_U1 SF_MORE
330 #define SF_U2 (SF_U1*SF_U1)
331 #define SF_U3 (SF_U2*SF_U1)
332 #define SF_U4 (SF_U3*SF_U1)
333
334 #if __cplusplus
335 #define _SF_(f) (f)
336 #else
337 #define _SF_(f) ((Sfio_t*)(f))
338 #endif
339
340 #define __sf_putd(f,v) (_sfputd(_SF_(f),(Sfdouble_t)(v)))
341 #define __sf_putl(f,v) (_sfputl(_SF_(f),(Sflong_t)(v)))
342 #define __sf_putu(f,v) (_sfputu(_SF_(f),(Sfulong_t)(v)))
343 #define __sf_putm(f,v,m) (_sfputm(_SF_(f),(Sfulong_t)(v),(Sfulong_t)(m)))
344
345 #define __sf_putc(f,c) (_SF_(f)->_next >= _SF_(f)->_endw ? \
346 _sfflsbuf(_SF_(f),(int)((unsigned char)(c))) : \
347 (int)(*_SF_(f)->_next++ = (unsigned char)(c)) )
348 #define __sf_getc(f) (_SF_(f)->_next >= _SF_(f)->_endr ? _sffilbuf(_SF_(f),0) : \
349 (int)(*_SF_(f)->_next++) )
350
351 #define __sf_dlen(v) (_sfdlen((Sfdouble_t)(v)) )
352 #define __sf_llen(v) (_sfllen((Sflong_t)(v)) )
353 #define __sf_ulen(v) ((Sfulong_t)(v) < SF_U1 ? 1 : (Sfulong_t)(v) < SF_U2 ? 2 : \
354 (Sfulong_t)(v) < SF_U3 ? 3 : (Sfulong_t)(v) < SF_U4 ? 4 : 5)
355
356 #define __sf_fileno(f) (_SF_(f)->_file)
357 #define __sf_eof(f) (_SF_(f)->_flags&SF_EOF)
358 #define __sf_error(f) (_SF_(f)->_flags&SF_ERROR)
359 #define __sf_clrerr(f) (_SF_(f)->_flags &= ~(SF_ERROR|SF_EOF))
360 #define __sf_stacked(f) (_SF_(f)->_push != (Sfio_t*)0)
361 #define __sf_value(f) (_SF_(f)->_val)
362 #define __sf_slen() (_Sfi)
363 #define __sf_maxr(n,s) ((s)?((_Sfi=_Sfmaxr),(_Sfmaxr=(n)),_Sfi):_Sfmaxr)
364
365 #if defined(__INLINE__) && !_BLD_sfio
366
sfputd(Sfio_t * f,Sfdouble_t v)367 __INLINE__ int sfputd(Sfio_t* f, Sfdouble_t v) { return __sf_putd(f,v); }
sfputl(Sfio_t * f,Sflong_t v)368 __INLINE__ int sfputl(Sfio_t* f, Sflong_t v) { return __sf_putl(f,v); }
sfputu(Sfio_t * f,Sfulong_t v)369 __INLINE__ int sfputu(Sfio_t* f, Sfulong_t v) { return __sf_putu(f,v); }
sfputm(Sfio_t * f,Sfulong_t v,Sfulong_t m)370 __INLINE__ int sfputm(Sfio_t* f, Sfulong_t v, Sfulong_t m)
371 { return __sf_putm(f,v,m); }
372
sfputc(Sfio_t * f,int c)373 __INLINE__ int sfputc(Sfio_t* f, int c) { return __sf_putc(f,c); }
sfgetc(Sfio_t * f)374 __INLINE__ int sfgetc(Sfio_t* f) { return __sf_getc(f); }
375
sfdlen(Sfdouble_t v)376 __INLINE__ int sfdlen(Sfdouble_t v) { return __sf_dlen(v); }
sfllen(Sflong_t v)377 __INLINE__ int sfllen(Sflong_t v) { return __sf_llen(v); }
sfulen(Sfulong_t v)378 __INLINE__ int sfulen(Sfulong_t v) { return __sf_ulen(v); }
379
sffileno(Sfio_t * f)380 __INLINE__ int sffileno(Sfio_t* f) { return __sf_fileno(f); }
sfeof(Sfio_t * f)381 __INLINE__ int sfeof(Sfio_t* f) { return __sf_eof(f); }
sferror(Sfio_t * f)382 __INLINE__ int sferror(Sfio_t* f) { return __sf_error(f); }
sfclrerr(Sfio_t * f)383 __INLINE__ int sfclrerr(Sfio_t* f) { return __sf_clrerr(f); }
sfstacked(Sfio_t * f)384 __INLINE__ int sfstacked(Sfio_t* f) { return __sf_stacked(f); }
sfvalue(Sfio_t * f)385 __INLINE__ ssize_t sfvalue(Sfio_t* f) { return __sf_value(f); }
sfslen()386 __INLINE__ ssize_t sfslen() { return __sf_slen(); }
sfmaxr(ssize_t n,int s)387 __INLINE__ ssize_t sfmaxr(ssize_t n, int s) { return __sf_maxr(n,s); }
388
389 #else
390
391 #define sfputd(f,v) ( __sf_putd((f),(v)) )
392 #define sfputl(f,v) ( __sf_putl((f),(v)) )
393 #define sfputu(f,v) ( __sf_putu((f),(v)) )
394 #define sfputm(f,v,m) ( __sf_putm((f),(v),(m)) )
395
396 #define sfputc(f,c) ( __sf_putc((f),(c)) )
397 #define sfgetc(f) ( __sf_getc(f) )
398
399 #define sfdlen(v) ( __sf_dlen(v) )
400 #define sfllen(v) ( __sf_llen(v) )
401 #define sfulen(v) ( __sf_ulen(v) )
402
403 #define sffileno(f) ( __sf_fileno(f) )
404 #define sfeof(f) ( __sf_eof(f) )
405 #define sferror(f) ( __sf_error(f) )
406 #define sfclrerr(f) ( __sf_clrerr(f) )
407 #define sfstacked(f) ( __sf_stacked(f) )
408 #define sfvalue(f) ( __sf_value(f) )
409 #define sfslen() ( __sf_slen() )
410 #define sfmaxr(n,s) ( __sf_maxr(n,s) )
411
412 #endif /*__INLINE__*/
413
414 #ifndef _SFSTR_H /* GSF's string manipulation stuff */
415 #define _SFSTR_H 1
416
417 #define sfstropen() sfnew(0, 0, -1, -1, SF_READ|SF_WRITE|SF_STRING)
418 #define sfstrclose(f) sfclose(f)
419
420 #define sfstrseek(f,p,m) \
421 ( (m) == SEEK_SET ? \
422 (((p) < 0 || (p) > (f)->_size) ? (char*)0 : \
423 (char*)((f)->_next = (f)->_data+(p)) ) \
424 : (m) == SEEK_CUR ? \
425 ((f)->_next += (p), \
426 (((f)->_next < (f)->_data || (f)->_next > (f)->_data+(f)->_size) ? \
427 ((f)->_next -= (p), (char*)0) : (char*)(f)->_next ) ) \
428 : (m) == SEEK_END ? \
429 ( ((p) > 0 || (f)->_size+(p) < 0) ? (char*)0 : \
430 (char*)((f)->_next = (f)->_data+(f)->_size+(p)) ) \
431 : (char*)0 \
432 )
433
434 #define sfstrsize(f) ((f)->_size)
435 #define sfstrtell(f) ((f)->_next - (f)->_data)
436 #define sfstrpend(f) ((f)->_size - sfstrtell())
437 #define sfstrbase(f) ((char*)(f)->_data)
438
439 #define sfstruse(f) \
440 (sfputc((f),0) < 0 ? (char*)0 : (char*)((f)->_next = (f)->_data) \
441 )
442
443 #define sfstrrsrv(f,n) \
444 (sfreserve((f),(n),SF_WRITE|SF_LOCKR), sfwrite((f),(f)->_next,0), \
445 ((f)->_next+(n) <= (f)->_data+(f)->_size ? (char*)(f)->_next : (char*)0) \
446 )
447
448 #define sfstrbuf(f,b,n,m) \
449 (sfsetbuf((f),(b),(n)), ((f)->_flags |= (m) ? SF_MALLOC : 0), \
450 ((f)->_data == (unsigned char*)(b) ? 0 : -1) \
451 )
452
453 #endif /* _SFSTR_H */
454
455 #endif /* _SFIO_H */
456