Subversion Repositories shark

#include <fs/types.h>
#include <fs/errno.h>
#include <fs/task.h>
#include <fs/util.h>
#include <fs/maccess.h>
#include <fs/fcntl.h>

#include "file.h"
#include "dentry.h"
#include "fs.h"

/* there is no permission test yet !!! */

int k_access(char *newpath, int amode)
{
  declare_buffer(char,pathname,MAXPATHNAME);  
  int createflag=DENTRY_NOCREATE;
  struct dentry *d;
  __pid_t pid;
  int len;

  call_to_fs();
 
  if (amode&~(R_OK|R_OK|X_OK|F_OK)) return_from_fs(-EINVAL);
   
  len=__verify_read_nolen((char*)newpath);
  if ((!len)||(len>MAXPATHNAMELEN)) return_from_fs(-EVERIFY);
  __copy_from_user(pathname,newpath,len+1);

  pid=__get_pid();  
  lock_desctable(pid);

  d=find_dentry_from_ext(cwden_ptr(pid),(char *)pathname,&createflag);
  if (d==NULL) {
    unlock_desctable(pid);
    return_from_fs(-ENOENT);
  }
  unlock_dentry(d);
 
  unlock_desctable(pid);
 
  if (amode&X_OK) return_from_fs(-EACCES);
  return_from_fs(EOK);
}