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