1 /*
2 * linux/fs/stat.c
3 *
4 * (C) 1991 Linus Torvalds
5 */
6
7 #include <errno.h>
8 #include <sys/stat.h>
9
10 #include <linux/fs.h>
11 #include <linux/sched.h>
12 #include <linux/kernel.h>
13 #include <asm/segment.h>
14
15 static void cp_stat(struct m_inode * inode, struct stat * statbuf)
16 {
17 struct stat tmp;
18 int i;
19
20 verify_area(statbuf,sizeof (* statbuf));
21 tmp.st_dev = inode->i_dev;
22 tmp.st_ino = inode->i_num;
23 tmp.st_mode = inode->i_mode;
24 tmp.st_nlink = inode->i_nlinks;
25 tmp.st_uid = inode->i_uid;
26 tmp.st_gid = inode->i_gid;
27 tmp.st_rdev = inode->i_zone[0];
28 tmp.st_size = inode->i_size;
29 tmp.st_atime = inode->i_atime;
30 tmp.st_mtime = inode->i_mtime;
31 tmp.st_ctime = inode->i_ctime;
32 for (i=0 ; i<sizeof (tmp) ; i++)
33 put_fs_byte(((char *) &tmp)[i],&((char *) statbuf)[i]);
34 }
35
36 int sys_stat(char * filename, struct stat * statbuf)
37 {
38 struct m_inode * inode;
39
40 if (!(inode=namei(filename)))
41 return -ENOENT;
42 cp_stat(inode,statbuf);
43 iput(inode);
44 return 0;
45 }
46
47 int sys_fstat(unsigned int fd, struct stat * statbuf)
48 {
49 struct file * f;
50 struct m_inode * inode;
51
52 if (fd >= NR_OPEN || !(f=current->filp[fd]) || !(inode=f->f_inode))
53 return -EBADF;
54 cp_stat(inode,statbuf);
55 return 0;
56 }
57
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