41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* Copyright (C) 2013-2015 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* RTLD_NEXT requires _GNU_SOURCE. */
|
|
#define _GNU_SOURCE 1
|
|
#include <dlfcn.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
|
|
ssize_t
|
|
read (int fd, void *buf, size_t count)
|
|
{
|
|
static ssize_t (*read2) (int fd, void *buf, size_t count) = NULL;
|
|
|
|
if (read2 == NULL)
|
|
{
|
|
unsetenv ("LD_PRELOAD");
|
|
read2 = dlsym (RTLD_NEXT, "read");
|
|
}
|
|
|
|
if (count > 1 && isatty (fd) == 1)
|
|
count = 1;
|
|
|
|
return read2 (fd, buf, count);
|
|
}
|