diff options
Diffstat (limited to 'sysdeps/posix/stdio_init.c')
| -rw-r--r-- | sysdeps/posix/stdio_init.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/sysdeps/posix/stdio_init.c b/sysdeps/posix/stdio_init.c deleted file mode 100644 index 99b4e807a4..0000000000 --- a/sysdeps/posix/stdio_init.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Copyright (C) 1991, 1992, 1993, 1995, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <stdio.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> - -/* Initialize STREAM as necessary. - This may change I/O functions, give a buffer, etc. - If no buffer is allocated, but the bufsize is set, - the bufsize will be used to allocate the buffer. */ -void -__stdio_init_stream (FILE *stream) -{ - const int fd = (int) stream->__cookie; - struct stat statb; - - if (stream->__buffer != NULL || stream->__userbuf) - /* If's unbuffered by request, we can't do anything useful. */ - return; - - /* Find out what sort of file this is. */ - if (__fstat (fd, &statb) < 0) - return; - - if (S_ISCHR (statb.st_mode)) - { - /* It's a character device. - Make it line-buffered if it's a terminal. */ - if (__isatty (fd)) - { - stream->__linebuf = 1; - - /* Unix terminal devices have the bad habit of claiming to be - seekable. On systems I have tried, seeking on a terminal - device seems to set its file position as specified, such that - a later tell says the same thing. This is in no way related - to actual seekability--the ability to seek back and read old - data. Unix terminal devices will let you "seek back", and - then read more new data from the terminal. I can think of - nothing to do about this lossage except to preemptively disable - seeking on terminal devices. */ - - stream->__io_funcs.__seek = NULL; /* Seeks get ESPIPE. */ - } - } - -#ifdef _STATBUF_ST_BLKSIZE - /* Use the block-size field to determine - the system's optimal buffering size. */ - stream->__bufsize = statb.st_blksize; -#endif -} |