| /* ----------------------------------------------------------------------- * |
| * |
| * Copyright 2005-2008 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. |
| * |
| * ----------------------------------------------------------------------- */ |
| |
| /* |
| * fstat.c |
| * |
| * Very trivial fstat emulation |
| */ |
| |
| #include <sys/stat.h> |
| #include <errno.h> |
| #include "file.h" |
| |
| int fstat(int fd, struct stat *buf) |
| { |
| struct file_info *fp = &__file_info[fd]; |
| |
| if (fd >= NFILES || !fp->iop) { |
| errno = EBADF; |
| return -1; |
| } |
| |
| if (fp->iop->flags & __DEV_FILE) { |
| if (fp->i.fd.size == (uint32_t) - 1) { |
| /* File of unknown length, report it as a socket |
| (it probably really is, anyway!) */ |
| buf->st_mode = S_IFSOCK | 0444; |
| buf->st_size = 0; |
| } else { |
| buf->st_mode = S_IFREG | 0444; |
| buf->st_size = fp->i.fd.size; |
| } |
| } else { |
| buf->st_mode = S_IFCHR | 0666; |
| buf->st_size = 0; |
| } |
| |
| return 0; |
| } |