mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 11:20:07 +00:00
7c713e287e
* Rules (subdir_install): Depend on $(common-objpfx)sor-$(subdir). [! libc.so-version]: Clear static-only-routines. ($(common-objpfx)sor-$(subdir)): New target. [static-only-routines]: New static pattern rule for these .so's. * Makerules [libc.so-version] ($(slibdir)/libc.so): Target removed. [libc.so-version] ($(libdir)/libc.so, $(common-objpfx)libc-syms.so): New targets replace it. (install) [libc.so-version]: Depend on $(libdir)/libc.so instead of $(slibdir)/libc.so. * io/Makefile (static-only-routines): New variable. * configure.in: Check for tools objdump and objcopy, and for awk. * config.make.in (OBJDUMP, OBJCOPY, AWK): New variables. Thu May 9 01:24:00 1996 Ulrich Drepper <drepper@cygnus.com> * locale/programs/config.h: Remove definition of wint_t. * locale/programs/ld-collate.c: Include <wchar.h> instead of <wcstr.h>. * manual/time.texi: Add some more description for %U and %W format of strftime. Describe new format %V of strftime. * resolv/gethnamaddr.c: Prevent warning by preventing variable definition. * stdio-common/_itoa.c: Ditto. Tue May 7 23:43:07 1996 Ulrich Drepper <drepper@cygnus.com> * libio/clearerr.c, libio/feof.c, libio/ferror.c, libio/fgetc.c, libio/fileno.c, libio/fputc.c, libio/freopen.c, libio/fseek.c, libio/genops.c, libio/getc.c, libio/getchar.c, libio/iofclose.c, libio/iofflush.c, libio/iofgetpos.c, libio/iofgets.c, libio/iofputs.c, libio/iofread.c, libio/iofsetpos.c, libio/ioftell.c, libio/iofwrite.c, libio/iogetdelim.c, libio/iogets.c, libio/ioputs.c, libio/iosetbuffer.c, libio/iosetvbuf.c, libio/ioungetc.c, libio/iovsprintf.c, libio/libio.h, libio/putc.c, libio/putchar.c, libio/rewind.c, libio/stdio.h, stdio-common/printf_fp.c, stdio-common/vfprintf.c, stdio-common/vfscanf.c: Prepare for reentrent libio. * libio/clearerr_u.c, libio/feof_u.c, libio/ferror_u.c, libio/fputc_u.c, libio/getc_u.c, libio/getchar_u.c, libio/iofflush_u.c, libio/putc_u.c, libio/putchar_u.c: New files. Used in reentrent libio. * misc/getusershell.c: Prevent warnings.
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/*
|
|
Copyright (C) 1993 Free Software Foundation
|
|
|
|
This file is part of the GNU IO Library. This library is free
|
|
software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this library; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
As a special exception, if you link this library with files
|
|
compiled with a GNU compiler to produce an executable, this does not cause
|
|
the resulting executable to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why
|
|
the executable file might be covered by the GNU General Public License. */
|
|
|
|
#include "libioP.h"
|
|
|
|
#define _IOFBF 0 /* Fully buffered. */
|
|
#define _IOLBF 1 /* Line buffered. */
|
|
#define _IONBF 2 /* No buffering. */
|
|
|
|
int
|
|
_IO_setvbuf (fp, buf, mode, size)
|
|
_IO_FILE* fp;
|
|
char* buf;
|
|
int mode;
|
|
_IO_size_t size;
|
|
{
|
|
int result;
|
|
CHECK_FILE (fp, EOF);
|
|
_IO_flockfile (fp);
|
|
switch (mode)
|
|
{
|
|
case _IOFBF:
|
|
fp->_IO_file_flags &= ~_IO_LINE_BUF;
|
|
if (buf == NULL)
|
|
{
|
|
if (fp->_IO_buf_base == NULL)
|
|
{
|
|
/* There is no flag to distinguish between "fully buffered
|
|
mode has been explicitly set" as opposed to "line
|
|
buffering has not been explicitly set". In both
|
|
cases, _IO_LINE_BUF is off. If this is a tty, and
|
|
_IO_filedoalloc later gets called, it cannot know if
|
|
it should set the _IO_LINE_BUF flag (because that is
|
|
the default), or not (because we have explicitly asked
|
|
for fully buffered mode). So we make sure a buffer
|
|
gets allocated now, and explicitly turn off line
|
|
buffering.
|
|
|
|
A possibly cleaner alternative would be to add an
|
|
extra flag, but then flags are a finite resource. */
|
|
if (_IO_DOALLOCATE (fp) < 0)
|
|
{
|
|
result = EOF;
|
|
goto unlock_return;
|
|
}
|
|
fp->_IO_file_flags &= ~_IO_LINE_BUF;
|
|
}
|
|
result = 0;
|
|
goto unlock_return;
|
|
}
|
|
break;
|
|
case _IOLBF:
|
|
fp->_IO_file_flags |= _IO_LINE_BUF;
|
|
if (buf == NULL)
|
|
{
|
|
result = 0;
|
|
goto unlock_return;
|
|
}
|
|
break;
|
|
case _IONBF:
|
|
buf = NULL;
|
|
size = 0;
|
|
break;
|
|
default:
|
|
result = EOF;
|
|
goto unlock_return;
|
|
}
|
|
result = _IO_SETBUF (fp, buf, size) == NULL ? EOF : 0;
|
|
unlock_return:
|
|
_IO_funlockfile (fp);
|
|
return result;
|
|
}
|
|
|
|
weak_alias (_IO_setvbuf, setvbuf)
|