Subversion Repositories shark

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 pj 1
 
2
#include <fs/types.h>
3
#include <fs/errno.h>
4
#include <fs/task.h>
5
#include <fs/maccess.h>
6
#include <fs/major.h>
7
 
8
#include "file.h"
9
#include "inode.h"
10
#include "dentry.h"
11
#include "fs.h"
12
 
13
#include "debug.h"
14
 
15
int k_fstat(int fd, struct stat *buf)
16
{
17
  struct inode *in=NULL;
18
  __pid_t pid;
19
 
20
  call_to_fs();
21
 
22
  /* to do better: for console i/o */
23
  if (fd>=0&&fd<=2) {
24
    struct stat st;
25
 
26
    /* !!! */
27
    return_from_fs(-EBADF);
28
 
29
    st.st_dev=NULLDEV;
30
    st.st_ino=0;
31
    st.st_mode=((fd==0)?
32
                __S_IRUSR|__S_IRGRP|__S_IROTH:
33
                __S_IWUSR|__S_IWGRP|__S_IWOTH);
34
    st.st_nlink=1;
35
    st.st_uid=0;
36
    st.st_gid=0;
37
    st.st_size=0;
38
    st.st_atime=0;
39
    st.st_mtime=0;
40
    st.st_ctime=0;
41
 
42
    if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY);
43
    __copy_to_user(buf,&(in->i_st),sizeof(struct stat));
44
    return_from_fs(EOK);
45
  }
46
 
47
  /* don't try to use bad file descriptor */
48
  pid=__get_pid();
49
  if (check_fd(pid,fd)) {
50
    printk(KERN_INFO "k_fstat: using a bad file descriptor");
51
    return_from_fs(-EBADF);
52
  }
53
 
54
  if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY);
55
 
56
  in=file_ptr(pid,fd)->f_dentry->d_inode;
57
  __copy_to_user(buf,&(in->i_st),sizeof(struct stat));
58
 
59
  return_from_fs(EOK);
60
}