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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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32
sysdeps/unix/sysv/linux/ttyname_r.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991,92,93,1995-2001, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,93,1995-2001,2003,2006 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
@ -22,18 +22,20 @@
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <termios.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio-common/_itoa.h>
#include <kernel-features.h>
static int getttyname_r (char *buf, size_t buflen,
dev_t mydev, ino64_t myino, int save,
int *dostat) internal_function;
static int
internal_function
internal_function attribute_compat_text_section
getttyname_r (char *buf, size_t buflen, dev_t mydev, ino64_t myino,
int save, int *dostat)
{
@ -99,7 +101,6 @@ __ttyname_r (int fd, char *buf, size_t buflen)
struct stat64 st, st1;
int dostat = 0;
int save = errno;
int ret;
/* Test for the absolute minimal size. This makes life easier inside
the loop. */
@ -115,29 +116,34 @@ __ttyname_r (int fd, char *buf, size_t buflen)
return ERANGE;
}
/* isatty check, tcgetattr is used because it sets the correct
errno (EBADF resp. ENOTTY) on error. */
struct termios term;
if (__builtin_expect (__tcgetattr (fd, &term) < 0, 0))
return errno;
/* We try using the /proc filesystem. */
*_fitoa_word (fd, __stpcpy (procname, "/proc/self/fd/"), 10, 0) = '\0';
ret = __readlink (procname, buf, buflen - 1);
if (ret == -1 && errno == ENOENT)
ssize_t ret = __readlink (procname, buf, buflen - 1);
if (__builtin_expect (ret == -1 && errno == ENOENT, 0))
{
__set_errno (EBADF);
return EBADF;
}
if (!__isatty (fd))
{
__set_errno (ENOTTY);
return ENOTTY;
}
if (ret == -1 && errno == ENAMETOOLONG)
if (__builtin_expect (ret == -1 && errno == ENAMETOOLONG, 0))
{
__set_errno (ERANGE);
return ERANGE;
}
if (ret != -1 && buf[0] != '[')
if (__builtin_expect (ret != -1
#ifndef __ASSUME_PROC_SELF_FD_SYMLINK
/* This is for Linux 2.0. */
&& buf[0] != '['
#endif
, 1))
{
buf[ret] = '\0';
return 0;