diff options
Diffstat (limited to 'lib/libc_r/uthread/uthread_fcntl.c')
| -rw-r--r-- | lib/libc_r/uthread/uthread_fcntl.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/lib/libc_r/uthread/uthread_fcntl.c b/lib/libc_r/uthread/uthread_fcntl.c deleted file mode 100644 index 81c5d7f..0000000 --- a/lib/libc_r/uthread/uthread_fcntl.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdarg.h> -#include <unistd.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__fcntl, fcntl); - -extern int __fcntl_compat(int fd, int cmd, ...); - -int -_fcntl(int fd, int cmd,...) -{ - int flags = 0; - int nonblock; - int oldfd; - int ret; - va_list ap; - - /* Lock the file descriptor: */ - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - /* Initialise the variable argument list: */ - va_start(ap, cmd); - - /* Process according to file control command type: */ - switch (cmd) { - /* Duplicate a file descriptor: */ - case F_DUPFD: - /* - * Get the file descriptor that the caller wants to - * use: - */ - oldfd = va_arg(ap, int); - - /* Initialise the file descriptor table entry: */ - if ((ret = __sys_fcntl(fd, cmd, oldfd)) < 0) { - } - /* Initialise the file descriptor table entry: */ - else if (_thread_fd_table_init(ret) != 0) { - /* Quietly close the file: */ - __sys_close(ret); - - /* Reset the file descriptor: */ - ret = -1; - } else { - /* - * Save the file open flags so that they can - * be checked later: - */ - _thread_fd_setflags(ret, - _thread_fd_getflags(fd)); - } - break; - case F_SETFD: - flags = va_arg(ap, int); - ret = __sys_fcntl(fd, cmd, flags); - break; - case F_GETFD: - ret = __sys_fcntl(fd, cmd, 0); - break; - case F_GETFL: - ret = _thread_fd_getflags(fd); - break; - case F_SETFL: - /* - * Get the file descriptor flags passed by the - * caller: - */ - flags = va_arg(ap, int); - - /* - * Check if the user wants a non-blocking file - * descriptor: - */ - nonblock = flags & O_NONBLOCK; - - /* Set the file descriptor flags: */ - if ((ret = __sys_fcntl(fd, cmd, flags | O_NONBLOCK)) != 0) { - - /* Get the flags so that we behave like the kernel: */ - } else if ((flags = __sys_fcntl(fd, - F_GETFL, 0)) == -1) { - /* Error getting flags: */ - ret = -1; - - /* - * Check if the file descriptor is non-blocking - * with respect to the user: - */ - } else if (nonblock) - /* A non-blocking descriptor: */ - _thread_fd_setflags(fd, flags | O_NONBLOCK); - else - /* Save the flags: */ - _thread_fd_setflags(fd, flags & ~O_NONBLOCK); - break; - default: - /* Might want to make va_arg use a union */ - ret = __fcntl_compat(fd, cmd, va_arg(ap, void *)); - break; - } - - /* Free variable arguments: */ - va_end(ap); - - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_RDWR); - } - /* Return the completion status: */ - return (ret); -} - -int -__fcntl(int fd, int cmd,...) -{ - int ret; - va_list ap; - - _thread_enter_cancellation_point(); - - va_start(ap, cmd); - switch (cmd) { - case F_DUPFD: - case F_SETFD: - case F_SETFL: - ret = _fcntl(fd, cmd, va_arg(ap, int)); - break; - case F_GETFD: - case F_GETFL: - ret = _fcntl(fd, cmd); - break; - default: - ret = _fcntl(fd, cmd, va_arg(ap, void *)); - } - va_end(ap); - - _thread_leave_cancellation_point(); - - return ret; -} |
