Rev 3 | Details | Compare with Previous | Last modification | View Log | RSS feed
| 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 | #include <fs/major.h> |
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| 24 | |||
| 25 | #include "file.h" |
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| 26 | #include "inode.h" |
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| 27 | #include "dentry.h" |
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| 28 | #include "fs.h" |
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| 29 | |||
| 30 | #include "debug.h" |
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| 31 | |||
| 32 | int k_fstat(int fd, struct stat *buf) |
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| 33 | { |
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| 34 | struct inode *in=NULL; |
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| 35 | __pid_t pid; |
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| 36 | |||
| 37 | call_to_fs(); |
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| 38 | |||
| 39 | /* to do better: for console i/o */ |
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| 40 | if (fd>=0&&fd<=2) { |
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| 41 | struct stat st; |
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| 42 | |||
| 43 | /* !!! */ |
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| 44 | return_from_fs(-EBADF); |
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| 45 | |||
| 46 | st.st_dev=NULLDEV; |
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| 47 | st.st_ino=0; |
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| 48 | st.st_mode=((fd==0)? |
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| 49 | __S_IRUSR|__S_IRGRP|__S_IROTH: |
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| 50 | __S_IWUSR|__S_IWGRP|__S_IWOTH); |
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| 51 | st.st_nlink=1; |
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| 52 | st.st_uid=0; |
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| 53 | st.st_gid=0; |
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| 54 | st.st_size=0; |
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| 55 | st.st_atime=0; |
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| 56 | st.st_mtime=0; |
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| 57 | st.st_ctime=0; |
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| 58 | |||
| 59 | if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY); |
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| 60 | __copy_to_user(buf,&(in->i_st),sizeof(struct stat)); |
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| 61 | return_from_fs(EOK); |
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| 62 | } |
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| 63 | |||
| 64 | /* don't try to use bad file descriptor */ |
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| 65 | pid=__get_pid(); |
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| 66 | if (check_fd(pid,fd)) { |
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| 67 | printk(KERN_INFO "k_fstat: using a bad file descriptor"); |
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| 68 | return_from_fs(-EBADF); |
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| 69 | } |
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| 70 | |||
| 71 | if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY); |
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| 72 | |||
| 73 | in=file_ptr(pid,fd)->f_dentry->d_inode; |
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| 74 | __copy_to_user(buf,&(in->i_st),sizeof(struct stat)); |
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| 75 | |||
| 76 | return_from_fs(EOK); |
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| 77 | } |