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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | |
| 1063 | tullio | 2 | /* |
| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 16 | * |
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| 17 | */ |
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| 18 | |||
| 2 | pj | 19 | #include <fs/types.h> |
| 20 | #include <fs/errno.h> |
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| 21 | #include <fs/task.h> |
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| 22 | #include <fs/maccess.h> |
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| 23 | |||
| 24 | #include "file.h" |
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| 25 | #include "inode.h" |
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| 26 | #include "fileop.h" |
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| 27 | #include "fs.h" |
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| 28 | |||
| 29 | __off_t k_lseek(int fd, __off_t off, int whence) |
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| 30 | { |
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| 31 | __pid_t pid; |
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| 32 | |||
| 33 | call_to_fs(); |
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| 34 | |||
| 35 | /* don't try to use a bad file descriptor */ |
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| 36 | pid=__get_pid(); |
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| 37 | if (check_fd(pid,fd)) { |
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| 38 | printk(KERN_INFO "k_lseek: using bad file descriptor"); |
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| 39 | return_from_fs(-EBADF); |
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| 40 | } |
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| 41 | |||
| 42 | /* seek on a directory not permitted! */ |
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| 43 | if (file_ptr(pid,fd)->f_flag_isdir) return_from_fs(-EBADF); |
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| 44 | |||
| 45 | return_from_fs(file_ptr(pid,fd)->f_op->lseek(file_ptr(pid,fd),off,whence)); |
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| 46 | } |