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Rev | Author | Line No. | Line |
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2 | pj | 1 | |
2 | #include <fs/types.h> |
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3 | #include <fs/errno.h> |
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4 | #include <fs/task.h> |
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5 | #include <fs/util.h> |
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6 | #include <fs/maccess.h> |
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7 | #include <fs/fcntl.h> |
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8 | |||
9 | #include "file.h" |
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10 | #include "dentry.h" |
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11 | #include "fs.h" |
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12 | |||
13 | /* there is no permission test yet !!! */ |
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14 | |||
15 | int k_access(char *newpath, int amode) |
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16 | { |
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17 | declare_buffer(char,pathname,MAXPATHNAME); |
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18 | int createflag=DENTRY_NOCREATE; |
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19 | struct dentry *d; |
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20 | __pid_t pid; |
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21 | int len; |
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22 | |||
23 | call_to_fs(); |
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24 | |||
25 | if (amode&~(R_OK|R_OK|X_OK|F_OK)) return_from_fs(-EINVAL); |
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26 | |||
27 | len=__verify_read_nolen((char*)newpath); |
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28 | if ((!len)||(len>MAXPATHNAMELEN)) return_from_fs(-EVERIFY); |
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29 | __copy_from_user(pathname,newpath,len+1); |
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30 | |||
31 | pid=__get_pid(); |
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32 | lock_desctable(pid); |
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33 | |||
34 | d=find_dentry_from_ext(cwden_ptr(pid),(char *)pathname,&createflag); |
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35 | if (d==NULL) { |
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36 | unlock_desctable(pid); |
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37 | return_from_fs(-ENOENT); |
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38 | } |
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39 | unlock_dentry(d); |
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40 | |||
41 | unlock_desctable(pid); |
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42 | |||
43 | if (amode&X_OK) return_from_fs(-EACCES); |
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44 | return_from_fs(EOK); |
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45 | } |