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1159e0fd94
* libc/stdio/clearerr.c (clearerr): Ensure CHECK_INIT() is
called before _flockfile to prevent lock object use before
initialisation. _REENT_SMALL_CHECK_INIT() and CHECK_INIT()
take a struct _reent * instead of a FILE *.
* libc/stdio/fclose.c (_fclose_r): Ditto.
* libc/stdio/feof.c (feof): Ditto.
* libc/stdio/ferror.c (ferror): Ditto.
* libc/stdio/fflush.c (fflush): Ditto.
* libc/stdio/fgetc.c (fgetc): Ditto.
* libc/stdio/fgets.c (fgets): Ditto.
* libc/stdio/fileno.c (fileno): Ditto.
* libc/stdio/fputc.c (fputc): Ditto.
* libc/stdio/fputs.c (fputs): Ditto.
* libc/stdio/fread.c (fread): Ditto.
* libc/stdio/freopen.c (_freopen_r): Ditto.
* libc/stdio/fseek.c (_fseek_r): Ditto.
* libc/stdio/ftell.c (_ftell_r): Ditto.
* libc/stdio/fwrite.c (fwrite): Ditto.
* libc/stdio/getc.c (getc): Ditto.
* libc/stdio/getdelim.c (__getdelim): Ditto.
* libc/stdio/putc.c (putc): Ditto.
* libc/stdio/setvbuf.c (setvbuf): Ditto.
* libc/stdio/ungetc.c (_ungetc_r): Ditto.
* libc/stdio/vfprintf.c (_VFPRINTF_R): Ditto.
* libc/stdio64/freopen64.c (_freopen64_r): Ditto.
* libc/stdio64/fseeko64.c (_fseeko64_r): Ditto.
* libc/stdio64/ftello64.c (_ftello64_r): Ditto.
* libc/stdio/local.h (CHECK_INIT): Argument is now a struct
_reent * instead of a FILE * and so replace incorrect use of
_REENT with argument.
* libc/sys/arm/syscalls.c (CHECK_INIT): Ditto.
* libc/stdio/getchar.c (getchar): _REENT_SMALL_CHECK_INIT() and
CHECK_INIT() take a struct _reent * instead of a FILE *.
* libc/stdio/iprintf.c (iprintf, _iprintf_r): Ditto.
* libc/stdio/iscanf.c (iscanf, _iscanf_r): Ditto.
* libc/stdio/perror.c (perror): Ditto.
* libc/stdio/printf.c (printf, _printf_r): Ditto.
* libc/stdio/putchar.c (putchar): Ditto.
* libc/stdio/puts.c (puts): Ditto.
* libc/stdio/refill.c (__srefill): Ditto.
* libc/stdio/scanf.c (scanf, _scanf_r): Ditto.
* libc/stdio/vfscanf.c (VFSCANF, _VFSCANF_R): Ditto.
* libc/stdio/viprintf.c (viprintf, _viprintf_r): Ditto.
* libc/stdio/viscanf.c (viscanf, _viscanf_r): Ditto.
* libc/stdio/vprintf.c (vprintf, _vprintf_r): Ditto.
* libc/stdio/vscanf.c (vscanf, _vscanf_r): Ditto.
* libc/stdio/wbuf.c (__swbuf): Ditto.
* libc/stdio/wsetup.c (__swsetup): Ditto.
* libc/stdlib/mallocr.c (malloc_stats): Ditto.
* libc/stdlib/mstats.c (_mstats_r): Ditto.
* libc/include/sys/reent.h (_REENT_SMALL_CHECK_INIT): Ditto.
* libc/machine/powerpc/vfscanf.c (vfscanf): Ditto.
* libc/stdio/fgetpos.c (_fgetpos_r): Removed unnecessary calls
to _flockfile and _funlockfile; rely on locking in _ftell_r.
* libc/stdio64/fgetpos64.c (_fgetpos64_r): Ditto (_ftello64_r).
* libc/machine/powerpc/vfprintf.c (__sbprintf): Removed unnecessary
initialision of _data field in FILE structure.
* libc/machine/powerpc/vfprintf.c (VFPRINTF): Added CHECK_INIT() call.
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/*
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FUNCTION
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<<fgetpos>>---record position in a stream or file
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INDEX
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fgetpos
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INDEX
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_fgetpos_r
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ANSI_SYNOPSIS
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#include <stdio.h>
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int fgetpos(FILE *<[fp]>, fpos_t *<[pos]>);
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int _fgetpos_r(struct _reent *<[ptr]>, FILE *<[fp]>, fpos_t *<[pos]>);
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TRAD_SYNOPSIS
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#include <stdio.h>
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int fgetpos(<[fp]>, <[pos]>)
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FILE *<[fp]>;
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fpos_t *<[pos]>;
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int _fgetpos_r(<[ptr]>, <[fp]>, <[pos]>)
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struct _reent *<[ptr]>;
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FILE *<[fp]>;
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fpos_t *<[pos]>;
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DESCRIPTION
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Objects of type <<FILE>> can have a ``position'' that records how much
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of the file your program has already read. Many of the <<stdio>> functions
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depend on this position, and many change it as a side effect.
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You can use <<fgetpos>> to report on the current position for a file
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identified by <[fp]>; <<fgetpos>> will write a value
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representing that position at <<*<[pos]>>>. Later, you can
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use this value with <<fsetpos>> to return the file to this
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position.
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In the current implementation, <<fgetpos>> simply uses a character
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count to represent the file position; this is the same number that
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would be returned by <<ftell>>.
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RETURNS
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<<fgetpos>> returns <<0>> when successful. If <<fgetpos>> fails, the
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result is <<1>>. Failure occurs on streams that do not support
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positioning; the global <<errno>> indicates this condition with the
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value <<ESPIPE>>.
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PORTABILITY
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<<fgetpos>> is required by the ANSI C standard, but the meaning of the
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value it records is not specified beyond requiring that it be
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acceptable as an argument to <<fsetpos>>. In particular, other
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conforming C implementations may return a different result from
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<<ftell>> than what <<fgetpos>> writes at <<*<[pos]>>>.
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No supporting OS subroutines are required.
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*/
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#include <_ansi.h>
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#include <reent.h>
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#include <stdio.h>
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int
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_DEFUN(_fgetpos_r, (ptr, fp, pos),
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struct _reent * ptr _AND
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FILE * fp _AND
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_fpos_t * pos)
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{
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*pos = _ftell_r (ptr, fp);
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if (*pos != -1)
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{
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return 0;
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}
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return 1;
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}
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#ifndef _REENT_ONLY
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int
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_DEFUN(fgetpos, (fp, pos),
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FILE * fp _AND
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_fpos_t * pos)
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{
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return _fgetpos_r (_REENT, fp, pos);
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}
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#endif /* !_REENT_ONLY */
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