1 /* Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
19
20 /* Modified for newlib by Jeff Johnston, June 10/2002 */
21
22 #include <sys/types.h>
23 #include <sys/ipc.h>
24 #include <sys/stat.h>
25
26 #if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 2
27 #define STAT stat64
28 #else
29 #define STAT stat
30 #endif
31
32 key_t
ftok(pathname,proj_id)33 ftok (pathname, proj_id)
34 const char *pathname;
35 int proj_id;
36 {
37 struct STAT st;
38 key_t key;
39
40 if (STAT (pathname, &st) < 0)
41 return (key_t) -1;
42
43 key = ((st.st_ino & 0xffff) | ((st.st_dev & 0xff) << 16)
44 | ((proj_id & 0xff) << 24));
45
46 return key;
47 }
48