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 <bits/utime.h> |
| 20 | #include <fs/types.h> |
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| 21 | #include <fs/errno.h> |
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| 22 | #include <fs/task.h> |
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| 23 | #include <fs/util.h> |
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| 24 | #include <fs/maccess.h> |
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| 25 | |||
| 26 | |||
| 27 | #include "file.h" |
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| 28 | #include "dentry.h" |
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| 29 | #include "inode.h" |
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| 30 | #include "rwlock.h" |
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| 31 | #include "fs.h" |
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| 32 | |||
| 33 | /* |
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| 34 | struct utimbuf { |
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| 35 | __time_t acctime; |
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| 36 | __time_t modtime; |
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| 37 | }; |
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| 38 | */ |
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| 39 | |||
| 40 | int k_utime(char *path, struct utimbuf *times) |
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| 41 | { |
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| 42 | declare_buffer(char,pathname,MAXPATHNAME); |
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| 43 | declare_buffer(struct utimbuf,t,1); |
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| 44 | int createflag=DENTRY_NOCREATE; |
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| 45 | struct dentry *d; |
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| 46 | __pid_t pid; |
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| 47 | int len; |
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| 48 | |||
| 49 | call_to_fs(); |
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| 50 | |||
| 51 | len=__verify_read_nolen((char*)path); |
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| 52 | if ((!len)||(len>MAXPATHNAMELEN)) return_from_fs(-EVERIFY); |
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| 53 | __copy_from_user(pathname,path,len+1); |
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| 54 | init_buffer(t); |
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| 55 | if (times!=NULL) { |
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| 56 | len=__verify_read((char*)times,sizeof(struct utimbuf)); |
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| 57 | if (!len) return_from_fs(-EPERM); |
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| 58 | __copy_from_user(t,times,len); |
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| 59 | } |
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| 60 | |||
| 61 | pid=__get_pid(); |
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| 62 | lock_desctable(pid); |
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| 63 | |||
| 64 | d=find_dentry_from_ext(cwden_ptr(pid),(char *)pathname,&createflag); |
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| 65 | if (d==NULL) { |
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| 66 | unlock_desctable(pid); |
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| 67 | return_from_fs(-ENOENT); |
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| 68 | } |
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| 69 | |||
| 70 | __rwlock_wrlock(&d->d_inode->i_lock); |
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| 71 | if (times==NULL) { |
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| 72 | d->d_inode->i_st.st_atime=d->d_inode->i_st.st_mtime=gettimek(); |
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| 73 | } else { |
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| 74 | d->d_inode->i_st.st_atime=t->actime; |
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| 75 | d->d_inode->i_st.st_mtime=t->modtime; |
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| 76 | } |
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| 77 | d->d_inode->i_dirty=1; |
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| 78 | __rwlock_wrunlock(&d->d_inode->i_lock); |
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| 79 | |||
| 80 | unlock_dentry(d); |
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| 81 | unlock_desctable(pid); |
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| 82 | return_from_fs(EOK); |
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| 83 | } |