diff options
Diffstat (limited to 'libio/filedoalloc.c')
| -rw-r--r-- | libio/filedoalloc.c | 36 |
1 files changed, 5 insertions, 31 deletions
diff --git a/libio/filedoalloc.c b/libio/filedoalloc.c index b51e910131..4f9d738968 100644 --- a/libio/filedoalloc.c +++ b/libio/filedoalloc.c @@ -55,41 +55,24 @@ /* Modified for GNU iostream by Per Bothner 1991, 1992. */ -#ifndef _POSIX_SOURCE -# define _POSIX_SOURCE -#endif #include "libioP.h" -#include <sys/types.h> +#include <device-nrs.h> #include <sys/stat.h> #include <stdlib.h> #include <unistd.h> -#ifdef _LIBC -# undef isatty -# define isatty(Fd) __isatty (Fd) - -# include <device-nrs.h> -#endif - - +/* Return the result of isatty, without changing errno. */ static int local_isatty (int fd) { int save_errno = errno; - int res = isatty (fd); + int res = __isatty (fd); __set_errno (save_errno); return res; } - -/* - * Allocate a file buffer, or switch to unbuffered I/O. - * Per the ANSI C standard, ALL tty devices default to line buffered. - * - * As a side effect, we set __SOPT or __SNPT (en/dis-able fseek - * optimisation) right after the _fstat() that finds the buffer size. - */ - +/* Allocate a file buffer, or switch to unbuffered I/O. Streams for + TTY devices default to line buffered. */ int _IO_file_doallocate (_IO_FILE *fp) { @@ -97,15 +80,6 @@ _IO_file_doallocate (_IO_FILE *fp) char *p; struct stat64 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 (__glibc_unlikely (_IO_cleanup_registration_needed != NULL)) - (*_IO_cleanup_registration_needed) (); -#endif - size = _IO_BUFSIZ; if (fp->_fileno >= 0 && __builtin_expect (_IO_SYSSTAT (fp, &st), 0) >= 0) { |