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Rev | Author | Line No. | Line |
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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 | } |