diff options
Diffstat (limited to 'libio/filedoalloc.c')
| -rw-r--r-- | libio/filedoalloc.c | 72 |
1 files changed, 40 insertions, 32 deletions
diff --git a/libio/filedoalloc.c b/libio/filedoalloc.c index f838bb3458f..f1b781e8a0f 100644 --- a/libio/filedoalloc.c +++ b/libio/filedoalloc.c @@ -1,26 +1,27 @@ -/* -Copyright (C) 1993 Free Software Foundation +/* Copyright (C) 1993, 1997 Free Software Foundation, Inc. + This file is part of the GNU IO Library. -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 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. + 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. + 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. */ + 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. */ /* * Copyright (c) 1990 The Regents of the University of California. @@ -41,7 +42,9 @@ the executable file might be covered by the GNU General Public License. */ /* Modified for GNU iostream by Per Bothner 1991, 1992. */ -#define _POSIX_SOURCE +#ifndef _POSIX_SOURCE +# define _POSIX_SOURCE +#endif #include "libioP.h" #include <sys/types.h> #include <sys/stat.h> @@ -50,6 +53,11 @@ the executable file might be covered by the GNU General Public License. */ #include <unistd.h> #endif +#ifdef _LIBC +# undef isatty +# define isatty(Fd) __isatty (Fd) +#endif + /* * Allocate a file buffer, or switch to unbuffered I/O. * Per the ANSI C standard, ALL tty devices default to line buffered. @@ -59,21 +67,23 @@ the executable file might be covered by the GNU General Public License. */ */ int -DEFUN(_IO_file_doallocate, (fp), - register _IO_FILE *fp) +_IO_file_doallocate (fp) + _IO_FILE *fp; { - register _IO_size_t size; + _IO_size_t size; int couldbetty; - register char *p; + char *p; struct stat st; +#ifndef _LIBC /* If _IO_cleanup_registration_needed is non-zero, we should call the function it points to. This is to make sure _IO_cleanup gets called on exit. We call it from _IO_file_doallocate, since that is likely to get called by any program that does buffered I/O. */ if (_IO_cleanup_registration_needed) - (*_IO_cleanup_registration_needed)(); - + (*_IO_cleanup_registration_needed) (); +#endif + if (fp->_fileno < 0 || _IO_SYSSTAT (fp, &st) < 0) { couldbetty = 0; @@ -85,18 +95,16 @@ DEFUN(_IO_file_doallocate, (fp), } else { - couldbetty = S_ISCHR(st.st_mode); + couldbetty = S_ISCHR (st.st_mode); #if _IO_HAVE_ST_BLKSIZE size = st.st_blksize <= 0 ? _IO_BUFSIZ : st.st_blksize; #else size = _IO_BUFSIZ; #endif } - p = ALLOC_BUF(size); - if (p == NULL) - return EOF; - _IO_setb(fp, p, p+size, 1); - if (couldbetty && isatty(fp->_fileno)) + ALLOC_BUF (p, size, EOF); + _IO_setb (fp, p, p + size, 1); + if (couldbetty && isatty (fp->_fileno)) fp->_flags |= _IO_LINE_BUF; return 1; } |
