| /* Copyright (c) 1997, 1998 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <string.h> |
| #include <rpcsvc/nis.h> |
| |
| #include "nis_xdr.h" |
| #include "nis_intern.h" |
| |
| fd_result * |
| __nis_finddirectory (directory_obj *dir, const_nis_name name) |
| { |
| nis_error status; |
| fd_args fd_args; |
| fd_result *fd_res; |
| |
| fd_args.dir_name = strdup (name); |
| fd_args.requester = nis_local_host(); |
| fd_res = calloc (1, sizeof (fd_result)); |
| |
| status = __do_niscall2 (dir->do_servers.do_servers_val, |
| dir->do_servers.do_servers_len, |
| NIS_FINDDIRECTORY, (xdrproc_t) _xdr_fd_args, |
| (caddr_t) &fd_args, (xdrproc_t) _xdr_fd_result, |
| (caddr_t) fd_res, NO_AUTHINFO|USE_DGRAM, NULL); |
| if (status != NIS_SUCCESS) |
| fd_res->status = status; |
| |
| return fd_res; |
| } |
| |
| /* This is from libc/db/hash/hash_func.c, hash3 is static there */ |
| /* |
| * This is INCREDIBLY ugly, but fast. We break the string up into 8 byte |
| * units. On the first time through the loop we get the "leftover bytes" |
| * (strlen % 8). On every other iteration, we perform 8 HASHC's so we handle |
| * all 8 bytes. Essentially, this saves us 7 cmp & branch instructions. If |
| * this routine is heavily used enough, it's worth the ugly coding. |
| * |
| * OZ's original sdbm hash |
| */ |
| unsigned long |
| __nis_hash (const void *keyarg, register size_t len) |
| { |
| register const u_char *key; |
| register size_t loop; |
| register u_int32_t h; |
| |
| #define HASHC h = *key++ + 65599 * h |
| |
| h = 0; |
| key = keyarg; |
| if (len > 0) |
| { |
| loop = (len + 8 - 1) >> 3; |
| switch (len & (8 - 1)) |
| { |
| case 0: |
| do { |
| HASHC; |
| /* FALLTHROUGH */ |
| case 7: |
| HASHC; |
| /* FALLTHROUGH */ |
| case 6: |
| HASHC; |
| /* FALLTHROUGH */ |
| case 5: |
| HASHC; |
| /* FALLTHROUGH */ |
| case 4: |
| HASHC; |
| /* FALLTHROUGH */ |
| case 3: |
| HASHC; |
| /* FALLTHROUGH */ |
| case 2: |
| HASHC; |
| /* FALLTHROUGH */ |
| case 1: |
| HASHC; |
| } while (--loop); |
| } |
| } |
| return (h); |
| } |