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2 pj 1
 
1063 tullio 2
/*
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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2 pj 19
#include <fs/types.h>
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#include <fs/errno.h>
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#include <fs/task.h>
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#include <fs/maccess.h>
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#include <fs/major.h>
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#include "file.h"
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#include "inode.h"
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#include "dentry.h"
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#include "fs.h"
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#include "debug.h"
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int k_fstat(int fd, struct stat *buf)
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{
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  struct inode *in=NULL;
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  __pid_t pid;
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  call_to_fs();
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  /* to do better: for console i/o */
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  if (fd>=0&&fd<=2) {
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    struct stat st;
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    /* !!! */
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    return_from_fs(-EBADF);
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    st.st_dev=NULLDEV;
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    st.st_ino=0;
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    st.st_mode=((fd==0)?
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                __S_IRUSR|__S_IRGRP|__S_IROTH:
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                __S_IWUSR|__S_IWGRP|__S_IWOTH);
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    st.st_nlink=1;
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    st.st_uid=0;
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    st.st_gid=0;
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    st.st_size=0;
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    st.st_atime=0;
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    st.st_mtime=0;
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    st.st_ctime=0;
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    if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY);
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    __copy_to_user(buf,&(in->i_st),sizeof(struct stat));
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    return_from_fs(EOK);
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  }
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  /* don't try to use bad file descriptor */
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  pid=__get_pid();
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  if (check_fd(pid,fd)) {
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    printk(KERN_INFO "k_fstat: using a bad file descriptor");
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    return_from_fs(-EBADF);
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  }
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  if (!__verify_write(buf,sizeof(struct stat))) return_from_fs(-EVERIFY);
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  in=file_ptr(pid,fd)->f_dentry->d_inode;
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  __copy_to_user(buf,&(in->i_st),sizeof(struct stat));
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  return_from_fs(EOK);
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}