diff options
Diffstat (limited to 'contrib/syslinux/latest/com32/lib/sys/opendev.c')
-rw-r--r-- | contrib/syslinux/latest/com32/lib/sys/opendev.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/contrib/syslinux/latest/com32/lib/sys/opendev.c b/contrib/syslinux/latest/com32/lib/sys/opendev.c deleted file mode 100644 index 1df9d07..0000000 --- a/contrib/syslinux/latest/com32/lib/sys/opendev.c +++ /dev/null @@ -1,99 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2003-2008 H. Peter Anvin - All Rights Reserved - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following - * conditions: - * - * The above copyright notice and this permission notice shall - * be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * ----------------------------------------------------------------------- */ - -#include <errno.h> -#include <com32.h> -#include <string.h> -#include <unistd.h> -#include "file.h" - -/* - * opendev.c - * - * Open a special device - */ - -int opendev(const struct input_dev *idev, - const struct output_dev *odev, int flags) -{ - int fd; - struct file_info *fp; - int okflags; - int e; - - okflags = (idev ? idev->fileflags : 0) | (odev ? odev->fileflags : 0); - - if (!(flags & 3) || (flags & ~okflags)) { - errno = EINVAL; - return -1; - } - - for (fd = 0, fp = __file_info; fd < NFILES; fd++, fp++) - if (!fp->iop && !fp->oop) - break; - - if (fd >= NFILES) { - errno = EMFILE; - return -1; - } - - /* The file structure is already zeroed */ - fp->iop = &dev_error_r; - fp->oop = &dev_error_w; - fp->i.datap = fp->i.buf; - - if (idev) { - if (idev->open && (e = idev->open(fp))) { - errno = e; - goto puke; - } - fp->iop = idev; - } - - while (odev) { - if (odev->open && (e = odev->open(fp))) { - if (e == EAGAIN) { - if (odev->fallback) { - odev = odev->fallback; - continue; - } else { - e = EIO; - } - } - errno = e; - goto puke; - } - fp->oop = odev; - break; - } - - return fd; - -puke: - close(fd); - return -1; -} |