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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/maccess.h> |
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6 | #include <fs/major.h> |
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7 | |||
8 | #include "file.h" |
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9 | #include "inode.h" |
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10 | #include "dentry.h" |
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11 | #include "fs.h" |
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12 | |||
13 | #include "debug.h" |
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14 | |||
15 | int k_fstat(int fd, struct stat *buf) |
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16 | { |
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17 | struct inode *in=NULL; |
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18 | __pid_t pid; |
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19 | |||
20 | call_to_fs(); |
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21 | |||
22 | /* to do better: for console i/o */ |
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23 | if (fd>=0&&fd<=2) { |
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24 | struct stat st; |
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25 | |||
26 | /* !!! */ |
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27 | return_from_fs(-EBADF); |
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28 | |||
29 | st.st_dev=NULLDEV; |
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30 | st.st_ino=0; |
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31 | st.st_mode=((fd==0)? |
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32 | __S_IRUSR|__S_IRGRP|__S_IROTH: |
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33 | __S_IWUSR|__S_IWGRP|__S_IWOTH); |
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34 | st.st_nlink=1; |
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35 | st.st_uid=0; |
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36 | st.st_gid=0; |
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37 | st.st_size=0; |
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38 | st.st_atime=0; |
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39 | st.st_mtime=0; |
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40 | st.st_ctime=0; |
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41 | |||
42 | if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY); |
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43 | __copy_to_user(buf,&(in->i_st),sizeof(struct stat)); |
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44 | return_from_fs(EOK); |
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45 | } |
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46 | |||
47 | /* don't try to use bad file descriptor */ |
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48 | pid=__get_pid(); |
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49 | if (check_fd(pid,fd)) { |
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50 | printk(KERN_INFO "k_fstat: using a bad file descriptor"); |
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51 | return_from_fs(-EBADF); |
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52 | } |
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53 | |||
54 | if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY); |
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55 | |||
56 | in=file_ptr(pid,fd)->f_dentry->d_inode; |
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57 | __copy_to_user(buf,&(in->i_st),sizeof(struct stat)); |
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58 | |||
59 | return_from_fs(EOK); |
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60 | } |