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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | |
| 2 | #include <bits/utime.h> |
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| 3 | #include <fs/types.h> |
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| 4 | #include <fs/errno.h> |
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| 5 | #include <fs/task.h> |
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| 6 | #include <fs/util.h> |
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| 7 | #include <fs/maccess.h> |
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| 8 | |||
| 9 | |||
| 10 | #include "file.h" |
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| 11 | #include "dentry.h" |
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| 12 | #include "inode.h" |
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| 13 | #include "rwlock.h" |
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| 14 | #include "fs.h" |
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| 15 | |||
| 16 | /* |
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| 17 | struct utimbuf { |
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| 18 | __time_t acctime; |
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| 19 | __time_t modtime; |
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| 20 | }; |
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| 21 | */ |
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| 22 | |||
| 23 | int k_utime(char *path, struct utimbuf *times) |
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| 24 | { |
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| 25 | declare_buffer(char,pathname,MAXPATHNAME); |
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| 26 | declare_buffer(struct utimbuf,t,1); |
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| 27 | int createflag=DENTRY_NOCREATE; |
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| 28 | struct dentry *d; |
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| 29 | __pid_t pid; |
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| 30 | int len; |
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| 31 | |||
| 32 | call_to_fs(); |
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| 33 | |||
| 34 | len=__verify_read_nolen((char*)path); |
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| 35 | if ((!len)||(len>MAXPATHNAMELEN)) return_from_fs(-EVERIFY); |
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| 36 | __copy_from_user(pathname,path,len+1); |
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| 37 | init_buffer(t); |
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| 38 | if (times!=NULL) { |
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| 39 | len=__verify_read((char*)times,sizeof(struct utimbuf)); |
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| 40 | if (!len) return_from_fs(-EPERM); |
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| 41 | __copy_from_user(t,times,len); |
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| 42 | } |
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| 43 | |||
| 44 | pid=__get_pid(); |
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| 45 | lock_desctable(pid); |
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| 46 | |||
| 47 | d=find_dentry_from_ext(cwden_ptr(pid),(char *)pathname,&createflag); |
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| 48 | if (d==NULL) { |
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| 49 | unlock_desctable(pid); |
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| 50 | return_from_fs(-ENOENT); |
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| 51 | } |
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| 52 | |||
| 53 | __rwlock_wrlock(&d->d_inode->i_lock); |
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| 54 | if (times==NULL) { |
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| 55 | d->d_inode->i_st.st_atime=d->d_inode->i_st.st_mtime=gettimek(); |
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| 56 | } else { |
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| 57 | d->d_inode->i_st.st_atime=t->actime; |
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| 58 | d->d_inode->i_st.st_mtime=t->modtime; |
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| 59 | } |
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| 60 | d->d_inode->i_dirty=1; |
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| 61 | __rwlock_wrunlock(&d->d_inode->i_lock); |
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| 62 | |||
| 63 | unlock_dentry(d); |
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| 64 | unlock_desctable(pid); |
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| 65 | return_from_fs(EOK); |
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| 66 | } |