JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Implement funopen, fopencookie.

Browse Source 
* libc/include/sys/reent.h (struct __sFILE, struct __sFILE64):
Switch to reentrant callbacks.
* libc/include/stdio.h (funopen): Fix declaration.
(fopencookie): Declare.
* libc/stdio/local.h (__sread, __swrite, __sseek, __sclose)
(__sseek64, __swrite64): Fix prototypes.
[__SCLE]: Pull in setmode declaration.
* libc/stdio/stdio.c (__sread, __swrite, __sseek, __sclose): Fix
reentrancy.
* libc/stdio64/stdio64.c (__sseek64_r, __swrite64_r): Delete.
(__sseek64, __swrite64): Fix reentrancy.
* libc/stdio/fseek.c (_fseek_r): Account for overflow, and fix
reentrancy.
* libc/stdio/ftell.c (_ftell_r): Likewise.
* libc/stdio/flags.c (__sflags): Don't lose __SAPP on "a+".
* libc/stdio/fclose.c (_fclose_r): Fix reentrancy.
* libc/stdio/freopen.c (_freopen_r): Likewise.
* libc/stdio/fvwrite.c (__sfvwrite_r): Likewise.
* libc/stdio/refill.c (__srefill_r): Likewise.
* libc/stdio/siscanf.c (eofread): Likewise.
* libc/stdio/sscanf.c (eofread): Likewise.
* libc/stdio/vsiscanf.c (eofread1): Likewise.
* libc/stdio/vsscanf.c (eofread1): Likewise.
* libc/stdio64/freopen64.c (_freopen64_r): Likewise.
* libc/stdio64/fseeko64.c (_fseeko64_r): Likewise.
* libc/stdio64/ftello64.c (_ftello64_r): Likewise.
* libc/stdio/fflush.c (fflush): Improve reentrancy, although more
could be fixed.
* libc/stdio/fopencookie.c (_fopencookie_r, fopencookie): New file.
* libc/stdio/funopen.c (_funopen_r, funopen): New file.
* libc/stdio/Makefile.am (ELIX_4_SOURCES, CHEWOUT_FILES): Build
new files.
* libc/stdio/Makefile.in: Regenerate.
This commit is contained in:
Eric Blake
2007-06-04 18:10:17 +00:00
parent 6a3b4eb69a
commit 17c61d6a2c
25 changed files with 780 additions and 142 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
newlib/libc/stdio/freopen.c
View File

@ -28,8 +28,8 @@ ANSI_SYNOPSIS
#include <stdio.h>
FILE *freopen(const char *<[file]>, const char *<[mode]>,
FILE *<[fp]>);
FILE *_freopen_r(struct _reent *<[ptr]>, const char *<[file]>,
const char *<[mode]>, FILE *<[fp]>);
FILE *_freopen_r(struct _reent *<[ptr]>, const char *<[file]>,
const char *<[mode]>, FILE *<[fp]>);
TRAD_SYNOPSIS
#include <stdio.h>
@ -89,8 +89,8 @@ Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
FILE *
_DEFUN(_freopen_r, (ptr, file, mode, fp),
struct _reent *ptr _AND
_CONST char *file _AND
_CONST char *mode _AND
const char *file _AND
const char *mode _AND
register FILE *fp)
{
register int f;
@ -106,7 +106,7 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
if ((flags = __sflags (ptr, mode, &oflags)) == 0)
{
_funlockfile (fp);
_CAST_VOID _fclose_r (ptr, fp);
_fclose_r (ptr, fp);
__sfp_lock_release ();
return NULL;
}
@ -124,13 +124,13 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
else
{
if (fp->_flags & __SWR)
_CAST_VOID fflush (fp);
fflush (fp);
/*
* If close is NULL, closing is a no-op, hence pointless.
* If file is NULL, the file should not be closed.
*/
if (fp->_close != NULL && file != NULL)
_CAST_VOID (*fp->_close) (fp->_cookie);
fp->_close (ptr, fp->_cookie);
}
/*
@ -154,10 +154,10 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
*/
f = fp->_file;
if ((oldflags = _fcntl_r (ptr, f, F_GETFL, 0)) == -1
|| ! ((oldflags & O_ACCMODE) == O_RDWR
|| ((oldflags ^ oflags) & O_ACCMODE) == 0)
|| _fcntl_r (ptr, f, F_SETFL, oflags) == -1)
f = -1;
|| ! ((oldflags & O_ACCMODE) == O_RDWR
|| ((oldflags ^ oflags) & O_ACCMODE) == 0)
|| _fcntl_r (ptr, f, F_SETFL, oflags) == -1)
f = -1;
#else
/* We cannot modify without fcntl support. */
f = -1;
@ -168,16 +168,16 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
* F_SETFL doesn't change textmode. Don't mess with modes of ttys.
*/
if (0 <= f && ! isatty (f)
&& setmode (f, oflags & (O_BINARY | O_TEXT)) == -1)
f = -1;
&& setmode (f, oflags & (O_BINARY | O_TEXT)) == -1)
f = -1;
#endif
if (f < 0)
{
e = EBADF;
if (fp->_close != NULL)
_CAST_VOID (*fp->_close) (fp->_cookie);
}
{
e = EBADF;
if (fp->_close != NULL)
fp->_close (ptr, fp->_cookie);
}
}
/*