| /* |
| * This version has been further modified by Rich Felker, primary author |
| * and maintainer of musl libc, to remove table generation code and |
| * replaced all runtime-generated constant tables with static-initialized |
| * tables in the binary, in the interest of minimizing non-shareable |
| * memory usage and stack size requirements. |
| */ |
| /* |
| * This version is derived from the original implementation of FreeSec |
| * (release 1.1) by David Burren. I've made it reentrant, reduced its memory |
| * usage from about 70 KB to about 7 KB (with only minimal performance impact |
| * and keeping code size about the same), made the handling of invalid salts |
| * mostly UFC-crypt compatible, added a quick runtime self-test (which also |
| * serves to zeroize the stack from sensitive data), and added optional tests. |
| * - Solar Designer <solar at openwall.com> |
| */ |
| |
| /* |
| * FreeSec: libcrypt for NetBSD |
| * |
| * Copyright (c) 1994 David Burren |
| * Copyright (c) 2000,2002,2010,2012 Solar Designer |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the author nor the names of other contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $Owl: Owl/packages/glibc/crypt_freesec.c,v 1.6 2010/02/20 14:45:06 solar Exp $ |
| * $Id: crypt.c,v 1.15 1994/09/13 04:58:49 davidb Exp $ |
| * |
| * This is an original implementation of the DES and the crypt(3) interfaces |
| * by David Burren. It has been heavily re-worked by Solar Designer. |
| */ |
| |
| #include <stdint.h> |
| #include <string.h> |
| |
| struct expanded_key { |
| uint32_t l[16], r[16]; |
| }; |
| |
| #define _PASSWORD_EFMT1 '_' |
| |
| static const unsigned char key_shifts[16] = { |
| 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 |
| }; |
| |
| static const uint32_t psbox[8][64] = { |
| { |
| 0x00808200,0x00000000,0x00008000,0x00808202, |
| 0x00808002,0x00008202,0x00000002,0x00008000, |
| 0x00000200,0x00808200,0x00808202,0x00000200, |
| 0x00800202,0x00808002,0x00800000,0x00000002, |
| 0x00000202,0x00800200,0x00800200,0x00008200, |
| 0x00008200,0x00808000,0x00808000,0x00800202, |
| 0x00008002,0x00800002,0x00800002,0x00008002, |
| 0x00000000,0x00000202,0x00008202,0x00800000, |
| 0x00008000,0x00808202,0x00000002,0x00808000, |
| 0x00808200,0x00800000,0x00800000,0x00000200, |
| 0x00808002,0x00008000,0x00008200,0x00800002, |
| 0x00000200,0x00000002,0x00800202,0x00008202, |
| 0x00808202,0x00008002,0x00808000,0x00800202, |
| 0x00800002,0x00000202,0x00008202,0x00808200, |
| 0x00000202,0x00800200,0x00800200,0x00000000, |
| 0x00008002,0x00008200,0x00000000,0x00808002, |
| },{ |
| 0x40084010,0x40004000,0x00004000,0x00084010, |
| 0x00080000,0x00000010,0x40080010,0x40004010, |
| 0x40000010,0x40084010,0x40084000,0x40000000, |
| 0x40004000,0x00080000,0x00000010,0x40080010, |
| 0x00084000,0x00080010,0x40004010,0x00000000, |
| 0x40000000,0x00004000,0x00084010,0x40080000, |
| 0x00080010,0x40000010,0x00000000,0x00084000, |
| 0x00004010,0x40084000,0x40080000,0x00004010, |
| 0x00000000,0x00084010,0x40080010,0x00080000, |
| 0x40004010,0x40080000,0x40084000,0x00004000, |
| 0x40080000,0x40004000,0x00000010,0x40084010, |
| 0x00084010,0x00000010,0x00004000,0x40000000, |
| 0x00004010,0x40084000,0x00080000,0x40000010, |
| 0x00080010,0x40004010,0x40000010,0x00080010, |
| 0x00084000,0x00000000,0x40004000,0x00004010, |
| 0x40000000,0x40080010,0x40084010,0x00084000, |
| },{ |
| 0x00000104,0x04010100,0x00000000,0x04010004, |
| 0x04000100,0x00000000,0x00010104,0x04000100, |
| 0x00010004,0x04000004,0x04000004,0x00010000, |
| 0x04010104,0x00010004,0x04010000,0x00000104, |
| 0x04000000,0x00000004,0x04010100,0x00000100, |
| 0x00010100,0x04010000,0x04010004,0x00010104, |
| 0x04000104,0x00010100,0x00010000,0x04000104, |
| 0x00000004,0x04010104,0x00000100,0x04000000, |
| 0x04010100,0x04000000,0x00010004,0x00000104, |
| 0x00010000,0x04010100,0x04000100,0x00000000, |
| 0x00000100,0x00010004,0x04010104,0x04000100, |
| 0x04000004,0x00000100,0x00000000,0x04010004, |
| 0x04000104,0x00010000,0x04000000,0x04010104, |
| 0x00000004,0x00010104,0x00010100,0x04000004, |
| 0x04010000,0x04000104,0x00000104,0x04010000, |
| 0x00010104,0x00000004,0x04010004,0x00010100, |
| },{ |
| 0x80401000,0x80001040,0x80001040,0x00000040, |
| 0x00401040,0x80400040,0x80400000,0x80001000, |
| 0x00000000,0x00401000,0x00401000,0x80401040, |
| 0x80000040,0x00000000,0x00400040,0x80400000, |
| 0x80000000,0x00001000,0x00400000,0x80401000, |
| 0x00000040,0x00400000,0x80001000,0x00001040, |
| 0x80400040,0x80000000,0x00001040,0x00400040, |
| 0x00001000,0x00401040,0x80401040,0x80000040, |
| 0x00400040,0x80400000,0x00401000,0x80401040, |
| 0x80000040,0x00000000,0x00000000,0x00401000, |
| 0x00001040,0x00400040,0x80400040,0x80000000, |
| 0x80401000,0x80001040,0x80001040,0x00000040, |
| 0x80401040,0x80000040,0x80000000,0x00001000, |
| 0x80400000,0x80001000,0x00401040,0x80400040, |
| 0x80001000,0x00001040,0x00400000,0x80401000, |
| 0x00000040,0x00400000,0x00001000,0x00401040, |
| },{ |
| 0x00000080,0x01040080,0x01040000,0x21000080, |
| 0x00040000,0x00000080,0x20000000,0x01040000, |
| 0x20040080,0x00040000,0x01000080,0x20040080, |
| 0x21000080,0x21040000,0x00040080,0x20000000, |
| 0x01000000,0x20040000,0x20040000,0x00000000, |
| 0x20000080,0x21040080,0x21040080,0x01000080, |
| 0x21040000,0x20000080,0x00000000,0x21000000, |
| 0x01040080,0x01000000,0x21000000,0x00040080, |
| 0x00040000,0x21000080,0x00000080,0x01000000, |
| 0x20000000,0x01040000,0x21000080,0x20040080, |
| 0x01000080,0x20000000,0x21040000,0x01040080, |
| 0x20040080,0x00000080,0x01000000,0x21040000, |
| 0x21040080,0x00040080,0x21000000,0x21040080, |
| 0x01040000,0x00000000,0x20040000,0x21000000, |
| 0x00040080,0x01000080,0x20000080,0x00040000, |
| 0x00000000,0x20040000,0x01040080,0x20000080, |
| },{ |
| 0x10000008,0x10200000,0x00002000,0x10202008, |
| 0x10200000,0x00000008,0x10202008,0x00200000, |
| 0x10002000,0x00202008,0x00200000,0x10000008, |
| 0x00200008,0x10002000,0x10000000,0x00002008, |
| 0x00000000,0x00200008,0x10002008,0x00002000, |
| 0x00202000,0x10002008,0x00000008,0x10200008, |
| 0x10200008,0x00000000,0x00202008,0x10202000, |
| 0x00002008,0x00202000,0x10202000,0x10000000, |
| 0x10002000,0x00000008,0x10200008,0x00202000, |
| 0x10202008,0x00200000,0x00002008,0x10000008, |
| 0x00200000,0x10002000,0x10000000,0x00002008, |
| 0x10000008,0x10202008,0x00202000,0x10200000, |
| 0x00202008,0x10202000,0x00000000,0x10200008, |
| 0x00000008,0x00002000,0x10200000,0x00202008, |
| 0x00002000,0x00200008,0x10002008,0x00000000, |
| 0x10202000,0x10000000,0x00200008,0x10002008, |
| },{ |
| 0x00100000,0x02100001,0x02000401,0x00000000, |
| 0x00000400,0x02000401,0x00100401,0x02100400, |
| 0x02100401,0x00100000,0x00000000,0x02000001, |
| 0x00000001,0x02000000,0x02100001,0x00000401, |
| 0x02000400,0x00100401,0x00100001,0x02000400, |
| 0x02000001,0x02100000,0x02100400,0x00100001, |
| 0x02100000,0x00000400,0x00000401,0x02100401, |
| 0x00100400,0x00000001,0x02000000,0x00100400, |
| 0x02000000,0x00100400,0x00100000,0x02000401, |
| 0x02000401,0x02100001,0x02100001,0x00000001, |
| 0x00100001,0x02000000,0x02000400,0x00100000, |
| 0x02100400,0x00000401,0x00100401,0x02100400, |
| 0x00000401,0x02000001,0x02100401,0x02100000, |
| 0x00100400,0x00000000,0x00000001,0x02100401, |
| 0x00000000,0x00100401,0x02100000,0x00000400, |
| 0x02000001,0x02000400,0x00000400,0x00100001, |
| },{ |
| 0x08000820,0x00000800,0x00020000,0x08020820, |
| 0x08000000,0x08000820,0x00000020,0x08000000, |
| 0x00020020,0x08020000,0x08020820,0x00020800, |
| 0x08020800,0x00020820,0x00000800,0x00000020, |
| 0x08020000,0x08000020,0x08000800,0x00000820, |
| 0x00020800,0x00020020,0x08020020,0x08020800, |
| 0x00000820,0x00000000,0x00000000,0x08020020, |
| 0x08000020,0x08000800,0x00020820,0x00020000, |
| 0x00020820,0x00020000,0x08020800,0x00000800, |
| 0x00000020,0x08020020,0x00000800,0x00020820, |
| 0x08000800,0x00000020,0x08000020,0x08020000, |
| 0x08020020,0x08000000,0x00020000,0x08000820, |
| 0x00000000,0x08020820,0x00020020,0x08000020, |
| 0x08020000,0x08000800,0x08000820,0x00000000, |
| 0x08020820,0x00020800,0x00020800,0x00000820, |
| 0x00000820,0x00020020,0x08000000,0x08020800, |
| }, |
| }; |
| static const uint32_t ip_maskl[16][16] = { |
| { |
| 0x00000000,0x00010000,0x00000000,0x00010000, |
| 0x01000000,0x01010000,0x01000000,0x01010000, |
| 0x00000000,0x00010000,0x00000000,0x00010000, |
| 0x01000000,0x01010000,0x01000000,0x01010000, |
| },{ |
| 0x00000000,0x00000001,0x00000000,0x00000001, |
| 0x00000100,0x00000101,0x00000100,0x00000101, |
| 0x00000000,0x00000001,0x00000000,0x00000001, |
| 0x00000100,0x00000101,0x00000100,0x00000101, |
| },{ |
| 0x00000000,0x00020000,0x00000000,0x00020000, |
| 0x02000000,0x02020000,0x02000000,0x02020000, |
| 0x00000000,0x00020000,0x00000000,0x00020000, |
| 0x02000000,0x02020000,0x02000000,0x02020000, |
| },{ |
| 0x00000000,0x00000002,0x00000000,0x00000002, |
| 0x00000200,0x00000202,0x00000200,0x00000202, |
| 0x00000000,0x00000002,0x00000000,0x00000002, |
| 0x00000200,0x00000202,0x00000200,0x00000202, |
| },{ |
| 0x00000000,0x00040000,0x00000000,0x00040000, |
| 0x04000000,0x04040000,0x04000000,0x04040000, |
| 0x00000000,0x00040000,0x00000000,0x00040000, |
| 0x04000000,0x04040000,0x04000000,0x04040000, |
| },{ |
| 0x00000000,0x00000004,0x00000000,0x00000004, |
| 0x00000400,0x00000404,0x00000400,0x00000404, |
| 0x00000000,0x00000004,0x00000000,0x00000004, |
| 0x00000400,0x00000404,0x00000400,0x00000404, |
| },{ |
| 0x00000000,0x00080000,0x00000000,0x00080000, |
| 0x08000000,0x08080000,0x08000000,0x08080000, |
| 0x00000000,0x00080000,0x00000000,0x00080000, |
| 0x08000000,0x08080000,0x08000000,0x08080000, |
| },{ |
| 0x00000000,0x00000008,0x00000000,0x00000008, |
| 0x00000800,0x00000808,0x00000800,0x00000808, |
| 0x00000000,0x00000008,0x00000000,0x00000008, |
| 0x00000800,0x00000808,0x00000800,0x00000808, |
| },{ |
| 0x00000000,0x00100000,0x00000000,0x00100000, |
| 0x10000000,0x10100000,0x10000000,0x10100000, |
| 0x00000000,0x00100000,0x00000000,0x00100000, |
| 0x10000000,0x10100000,0x10000000,0x10100000, |
| },{ |
| 0x00000000,0x00000010,0x00000000,0x00000010, |
| 0x00001000,0x00001010,0x00001000,0x00001010, |
| 0x00000000,0x00000010,0x00000000,0x00000010, |
| 0x00001000,0x00001010,0x00001000,0x00001010, |
| },{ |
| 0x00000000,0x00200000,0x00000000,0x00200000, |
| 0x20000000,0x20200000,0x20000000,0x20200000, |
| 0x00000000,0x00200000,0x00000000,0x00200000, |
| 0x20000000,0x20200000,0x20000000,0x20200000, |
| },{ |
| 0x00000000,0x00000020,0x00000000,0x00000020, |
| 0x00002000,0x00002020,0x00002000,0x00002020, |
| 0x00000000,0x00000020,0x00000000,0x00000020, |
| 0x00002000,0x00002020,0x00002000,0x00002020, |
| },{ |
| 0x00000000,0x00400000,0x00000000,0x00400000, |
| 0x40000000,0x40400000,0x40000000,0x40400000, |
| 0x00000000,0x00400000,0x00000000,0x00400000, |
| 0x40000000,0x40400000,0x40000000,0x40400000, |
| },{ |
| 0x00000000,0x00000040,0x00000000,0x00000040, |
| 0x00004000,0x00004040,0x00004000,0x00004040, |
| 0x00000000,0x00000040,0x00000000,0x00000040, |
| 0x00004000,0x00004040,0x00004000,0x00004040, |
| },{ |
| 0x00000000,0x00800000,0x00000000,0x00800000, |
| 0x80000000,0x80800000,0x80000000,0x80800000, |
| 0x00000000,0x00800000,0x00000000,0x00800000, |
| 0x80000000,0x80800000,0x80000000,0x80800000, |
| },{ |
| 0x00000000,0x00000080,0x00000000,0x00000080, |
| 0x00008000,0x00008080,0x00008000,0x00008080, |
| 0x00000000,0x00000080,0x00000000,0x00000080, |
| 0x00008000,0x00008080,0x00008000,0x00008080, |
| }, |
| }; |
| static const uint32_t ip_maskr[16][16] = { |
| { |
| 0x00000000,0x00000000,0x00010000,0x00010000, |
| 0x00000000,0x00000000,0x00010000,0x00010000, |
| 0x01000000,0x01000000,0x01010000,0x01010000, |
| 0x01000000,0x01000000,0x01010000,0x01010000, |
| },{ |
| 0x00000000,0x00000000,0x00000001,0x00000001, |
| 0x00000000,0x00000000,0x00000001,0x00000001, |
| 0x00000100,0x00000100,0x00000101,0x00000101, |
| 0x00000100,0x00000100,0x00000101,0x00000101, |
| },{ |
| 0x00000000,0x00000000,0x00020000,0x00020000, |
| 0x00000000,0x00000000,0x00020000,0x00020000, |
| 0x02000000,0x02000000,0x02020000,0x02020000, |
| 0x02000000,0x02000000,0x02020000,0x02020000, |
| },{ |
| 0x00000000,0x00000000,0x00000002,0x00000002, |
| 0x00000000,0x00000000,0x00000002,0x00000002, |
| 0x00000200,0x00000200,0x00000202,0x00000202, |
| 0x00000200,0x00000200,0x00000202,0x00000202, |
| },{ |
| 0x00000000,0x00000000,0x00040000,0x00040000, |
| 0x00000000,0x00000000,0x00040000,0x00040000, |
| 0x04000000,0x04000000,0x04040000,0x04040000, |
| 0x04000000,0x04000000,0x04040000,0x04040000, |
| },{ |
| 0x00000000,0x00000000,0x00000004,0x00000004, |
| 0x00000000,0x00000000,0x00000004,0x00000004, |
| 0x00000400,0x00000400,0x00000404,0x00000404, |
| 0x00000400,0x00000400,0x00000404,0x00000404, |
| },{ |
| 0x00000000,0x00000000,0x00080000,0x00080000, |
| 0x00000000,0x00000000,0x00080000,0x00080000, |
| 0x08000000,0x08000000,0x08080000,0x08080000, |
| 0x08000000,0x08000000,0x08080000,0x08080000, |
| },{ |
| 0x00000000,0x00000000,0x00000008,0x00000008, |
| 0x00000000,0x00000000,0x00000008,0x00000008, |
| 0x00000800,0x00000800,0x00000808,0x00000808, |
| 0x00000800,0x00000800,0x00000808,0x00000808, |
| },{ |
| 0x00000000,0x00000000,0x00100000,0x00100000, |
| 0x00000000,0x00000000,0x00100000,0x00100000, |
| 0x10000000,0x10000000,0x10100000,0x10100000, |
| 0x10000000,0x10000000,0x10100000,0x10100000, |
| },{ |
| 0x00000000,0x00000000,0x00000010,0x00000010, |
| 0x00000000,0x00000000,0x00000010,0x00000010, |
| 0x00001000,0x00001000,0x00001010,0x00001010, |
| 0x00001000,0x00001000,0x00001010,0x00001010, |
| },{ |
| 0x00000000,0x00000000,0x00200000,0x00200000, |
| 0x00000000,0x00000000,0x00200000,0x00200000, |
| 0x20000000,0x20000000,0x20200000,0x20200000, |
| 0x20000000,0x20000000,0x20200000,0x20200000, |
| },{ |
| 0x00000000,0x00000000,0x00000020,0x00000020, |
| 0x00000000,0x00000000,0x00000020,0x00000020, |
| 0x00002000,0x00002000,0x00002020,0x00002020, |
| 0x00002000,0x00002000,0x00002020,0x00002020, |
| },{ |
| 0x00000000,0x00000000,0x00400000,0x00400000, |
| 0x00000000,0x00000000,0x00400000,0x00400000, |
| 0x40000000,0x40000000,0x40400000,0x40400000, |
| 0x40000000,0x40000000,0x40400000,0x40400000, |
| },{ |
| 0x00000000,0x00000000,0x00000040,0x00000040, |
| 0x00000000,0x00000000,0x00000040,0x00000040, |
| 0x00004000,0x00004000,0x00004040,0x00004040, |
| 0x00004000,0x00004000,0x00004040,0x00004040, |
| },{ |
| 0x00000000,0x00000000,0x00800000,0x00800000, |
| 0x00000000,0x00000000,0x00800000,0x00800000, |
| 0x80000000,0x80000000,0x80800000,0x80800000, |
| 0x80000000,0x80000000,0x80800000,0x80800000, |
| },{ |
| 0x00000000,0x00000000,0x00000080,0x00000080, |
| 0x00000000,0x00000000,0x00000080,0x00000080, |
| 0x00008000,0x00008000,0x00008080,0x00008080, |
| 0x00008000,0x00008000,0x00008080,0x00008080, |
| }, |
| }; |
| static const uint32_t fp_maskl[8][16] = { |
| { |
| 0x00000000,0x40000000,0x00400000,0x40400000, |
| 0x00004000,0x40004000,0x00404000,0x40404000, |
| 0x00000040,0x40000040,0x00400040,0x40400040, |
| 0x00004040,0x40004040,0x00404040,0x40404040, |
| },{ |
| 0x00000000,0x10000000,0x00100000,0x10100000, |
| 0x00001000,0x10001000,0x00101000,0x10101000, |
| 0x00000010,0x10000010,0x00100010,0x10100010, |
| 0x00001010,0x10001010,0x00101010,0x10101010, |
| },{ |
| 0x00000000,0x04000000,0x00040000,0x04040000, |
| 0x00000400,0x04000400,0x00040400,0x04040400, |
| 0x00000004,0x04000004,0x00040004,0x04040004, |
| 0x00000404,0x04000404,0x00040404,0x04040404, |
| },{ |
| 0x00000000,0x01000000,0x00010000,0x01010000, |
| 0x00000100,0x01000100,0x00010100,0x01010100, |
| 0x00000001,0x01000001,0x00010001,0x01010001, |
| 0x00000101,0x01000101,0x00010101,0x01010101, |
| },{ |
| 0x00000000,0x80000000,0x00800000,0x80800000, |
| 0x00008000,0x80008000,0x00808000,0x80808000, |
| 0x00000080,0x80000080,0x00800080,0x80800080, |
| 0x00008080,0x80008080,0x00808080,0x80808080, |
| },{ |
| 0x00000000,0x20000000,0x00200000,0x20200000, |
| 0x00002000,0x20002000,0x00202000,0x20202000, |
| 0x00000020,0x20000020,0x00200020,0x20200020, |
| 0x00002020,0x20002020,0x00202020,0x20202020, |
| },{ |
| 0x00000000,0x08000000,0x00080000,0x08080000, |
| 0x00000800,0x08000800,0x00080800,0x08080800, |
| 0x00000008,0x08000008,0x00080008,0x08080008, |
| 0x00000808,0x08000808,0x00080808,0x08080808, |
| },{ |
| 0x00000000,0x02000000,0x00020000,0x02020000, |
| 0x00000200,0x02000200,0x00020200,0x02020200, |
| 0x00000002,0x02000002,0x00020002,0x02020002, |
| 0x00000202,0x02000202,0x00020202,0x02020202, |
| }, |
| }; |
| static const uint32_t fp_maskr[8][16] = { |
| { |
| 0x00000000,0x40000000,0x00400000,0x40400000, |
| 0x00004000,0x40004000,0x00404000,0x40404000, |
| 0x00000040,0x40000040,0x00400040,0x40400040, |
| 0x00004040,0x40004040,0x00404040,0x40404040, |
| },{ |
| 0x00000000,0x10000000,0x00100000,0x10100000, |
| 0x00001000,0x10001000,0x00101000,0x10101000, |
| 0x00000010,0x10000010,0x00100010,0x10100010, |
| 0x00001010,0x10001010,0x00101010,0x10101010, |
| },{ |
| 0x00000000,0x04000000,0x00040000,0x04040000, |
| 0x00000400,0x04000400,0x00040400,0x04040400, |
| 0x00000004,0x04000004,0x00040004,0x04040004, |
| 0x00000404,0x04000404,0x00040404,0x04040404, |
| },{ |
| 0x00000000,0x01000000,0x00010000,0x01010000, |
| 0x00000100,0x01000100,0x00010100,0x01010100, |
| 0x00000001,0x01000001,0x00010001,0x01010001, |
| 0x00000101,0x01000101,0x00010101,0x01010101, |
| },{ |
| 0x00000000,0x80000000,0x00800000,0x80800000, |
| 0x00008000,0x80008000,0x00808000,0x80808000, |
| 0x00000080,0x80000080,0x00800080,0x80800080, |
| 0x00008080,0x80008080,0x00808080,0x80808080, |
| },{ |
| 0x00000000,0x20000000,0x00200000,0x20200000, |
| 0x00002000,0x20002000,0x00202000,0x20202000, |
| 0x00000020,0x20000020,0x00200020,0x20200020, |
| 0x00002020,0x20002020,0x00202020,0x20202020, |
| },{ |
| 0x00000000,0x08000000,0x00080000,0x08080000, |
| 0x00000800,0x08000800,0x00080800,0x08080800, |
| 0x00000008,0x08000008,0x00080008,0x08080008, |
| 0x00000808,0x08000808,0x00080808,0x08080808, |
| },{ |
| 0x00000000,0x02000000,0x00020000,0x02020000, |
| 0x00000200,0x02000200,0x00020200,0x02020200, |
| 0x00000002,0x02000002,0x00020002,0x02020002, |
| 0x00000202,0x02000202,0x00020202,0x02020202, |
| }, |
| }; |
| static const uint32_t key_perm_maskl[8][16] = { |
| { |
| 0x00000000,0x00000000,0x00000010,0x00000010, |
| 0x00001000,0x00001000,0x00001010,0x00001010, |
| 0x00100000,0x00100000,0x00100010,0x00100010, |
| 0x00101000,0x00101000,0x00101010,0x00101010, |
| },{ |
| 0x00000000,0x00000000,0x00000020,0x00000020, |
| 0x00002000,0x00002000,0x00002020,0x00002020, |
| 0x00200000,0x00200000,0x00200020,0x00200020, |
| 0x00202000,0x00202000,0x00202020,0x00202020, |
| },{ |
| 0x00000000,0x00000000,0x00000040,0x00000040, |
| 0x00004000,0x00004000,0x00004040,0x00004040, |
| 0x00400000,0x00400000,0x00400040,0x00400040, |
| 0x00404000,0x00404000,0x00404040,0x00404040, |
| },{ |
| 0x00000000,0x00000000,0x00000080,0x00000080, |
| 0x00008000,0x00008000,0x00008080,0x00008080, |
| 0x00800000,0x00800000,0x00800080,0x00800080, |
| 0x00808000,0x00808000,0x00808080,0x00808080, |
| },{ |
| 0x00000000,0x00000001,0x00000100,0x00000101, |
| 0x00010000,0x00010001,0x00010100,0x00010101, |
| 0x01000000,0x01000001,0x01000100,0x01000101, |
| 0x01010000,0x01010001,0x01010100,0x01010101, |
| },{ |
| 0x00000000,0x00000002,0x00000200,0x00000202, |
| 0x00020000,0x00020002,0x00020200,0x00020202, |
| 0x02000000,0x02000002,0x02000200,0x02000202, |
| 0x02020000,0x02020002,0x02020200,0x02020202, |
| },{ |
| 0x00000000,0x00000004,0x00000400,0x00000404, |
| 0x00040000,0x00040004,0x00040400,0x00040404, |
| 0x04000000,0x04000004,0x04000400,0x04000404, |
| 0x04040000,0x04040004,0x04040400,0x04040404, |
| },{ |
| 0x00000000,0x00000008,0x00000800,0x00000808, |
| 0x00080000,0x00080008,0x00080800,0x00080808, |
| 0x08000000,0x08000008,0x08000800,0x08000808, |
| 0x08080000,0x08080008,0x08080800,0x08080808, |
| }, |
| }; |
| static const uint32_t key_perm_maskr[12][16] = { |
| { |
| 0x00000000,0x00000001,0x00000000,0x00000001, |
| 0x00000000,0x00000001,0x00000000,0x00000001, |
| 0x00000000,0x00000001,0x00000000,0x00000001, |
| 0x00000000,0x00000001,0x00000000,0x00000001, |
| },{ |
| 0x00000000,0x00000000,0x00100000,0x00100000, |
| 0x00001000,0x00001000,0x00101000,0x00101000, |
| 0x00000010,0x00000010,0x00100010,0x00100010, |
| 0x00001010,0x00001010,0x00101010,0x00101010, |
| },{ |
| 0x00000000,0x00000002,0x00000000,0x00000002, |
| 0x00000000,0x00000002,0x00000000,0x00000002, |
| 0x00000000,0x00000002,0x00000000,0x00000002, |
| 0x00000000,0x00000002,0x00000000,0x00000002, |
| },{ |
| 0x00000000,0x00000000,0x00200000,0x00200000, |
| 0x00002000,0x00002000,0x00202000,0x00202000, |
| 0x00000020,0x00000020,0x00200020,0x00200020, |
| 0x00002020,0x00002020,0x00202020,0x00202020, |
| },{ |
| 0x00000000,0x00000004,0x00000000,0x00000004, |
| 0x00000000,0x00000004,0x00000000,0x00000004, |
| 0x00000000,0x00000004,0x00000000,0x00000004, |
| 0x00000000,0x00000004,0x00000000,0x00000004, |
| },{ |
| 0x00000000,0x00000000,0x00400000,0x00400000, |
| 0x00004000,0x00004000,0x00404000,0x00404000, |
| 0x00000040,0x00000040,0x00400040,0x00400040, |
| 0x00004040,0x00004040,0x00404040,0x00404040, |
| },{ |
| 0x00000000,0x00000008,0x00000000,0x00000008, |
| 0x00000000,0x00000008,0x00000000,0x00000008, |
| 0x00000000,0x00000008,0x00000000,0x00000008, |
| 0x00000000,0x00000008,0x00000000,0x00000008, |
| },{ |
| 0x00000000,0x00000000,0x00800000,0x00800000, |
| 0x00008000,0x00008000,0x00808000,0x00808000, |
| 0x00000080,0x00000080,0x00800080,0x00800080, |
| 0x00008080,0x00008080,0x00808080,0x00808080, |
| },{ |
| 0x00000000,0x00000000,0x01000000,0x01000000, |
| 0x00010000,0x00010000,0x01010000,0x01010000, |
| 0x00000100,0x00000100,0x01000100,0x01000100, |
| 0x00010100,0x00010100,0x01010100,0x01010100, |
| },{ |
| 0x00000000,0x00000000,0x02000000,0x02000000, |
| 0x00020000,0x00020000,0x02020000,0x02020000, |
| 0x00000200,0x00000200,0x02000200,0x02000200, |
| 0x00020200,0x00020200,0x02020200,0x02020200, |
| },{ |
| 0x00000000,0x00000000,0x04000000,0x04000000, |
| 0x00040000,0x00040000,0x04040000,0x04040000, |
| 0x00000400,0x00000400,0x04000400,0x04000400, |
| 0x00040400,0x00040400,0x04040400,0x04040400, |
| },{ |
| 0x00000000,0x00000000,0x08000000,0x08000000, |
| 0x00080000,0x00080000,0x08080000,0x08080000, |
| 0x00000800,0x00000800,0x08000800,0x08000800, |
| 0x00080800,0x00080800,0x08080800,0x08080800, |
| }, |
| }; |
| static const uint32_t comp_maskl0[4][8] = { |
| { |
| 0x00000000,0x00020000,0x00000001,0x00020001, |
| 0x00080000,0x000a0000,0x00080001,0x000a0001, |
| },{ |
| 0x00000000,0x00001000,0x00000000,0x00001000, |
| 0x00000040,0x00001040,0x00000040,0x00001040, |
| },{ |
| 0x00000000,0x00400000,0x00000020,0x00400020, |
| 0x00008000,0x00408000,0x00008020,0x00408020, |
| },{ |
| 0x00000000,0x00100000,0x00000800,0x00100800, |
| 0x00000000,0x00100000,0x00000800,0x00100800, |
| }, |
| }; |
| static const uint32_t comp_maskr0[4][8] = { |
| { |
| 0x00000000,0x00200000,0x00020000,0x00220000, |
| 0x00000002,0x00200002,0x00020002,0x00220002, |
| },{ |
| 0x00000000,0x00000000,0x00100000,0x00100000, |
| 0x00000004,0x00000004,0x00100004,0x00100004, |
| },{ |
| 0x00000000,0x00004000,0x00000800,0x00004800, |
| 0x00000000,0x00004000,0x00000800,0x00004800, |
| },{ |
| 0x00000000,0x00400000,0x00008000,0x00408000, |
| 0x00000008,0x00400008,0x00008008,0x00408008, |
| }, |
| }; |
| static const uint32_t comp_maskl1[4][16] = { |
| { |
| 0x00000000,0x00000010,0x00004000,0x00004010, |
| 0x00040000,0x00040010,0x00044000,0x00044010, |
| 0x00000100,0x00000110,0x00004100,0x00004110, |
| 0x00040100,0x00040110,0x00044100,0x00044110, |
| },{ |
| 0x00000000,0x00800000,0x00000002,0x00800002, |
| 0x00000200,0x00800200,0x00000202,0x00800202, |
| 0x00200000,0x00a00000,0x00200002,0x00a00002, |
| 0x00200200,0x00a00200,0x00200202,0x00a00202, |
| },{ |
| 0x00000000,0x00002000,0x00000004,0x00002004, |
| 0x00000400,0x00002400,0x00000404,0x00002404, |
| 0x00000000,0x00002000,0x00000004,0x00002004, |
| 0x00000400,0x00002400,0x00000404,0x00002404, |
| },{ |
| 0x00000000,0x00010000,0x00000008,0x00010008, |
| 0x00000080,0x00010080,0x00000088,0x00010088, |
| 0x00000000,0x00010000,0x00000008,0x00010008, |
| 0x00000080,0x00010080,0x00000088,0x00010088, |
| }, |
| }; |
| static const uint32_t comp_maskr1[4][16] = { |
| { |
| 0x00000000,0x00000000,0x00000080,0x00000080, |
| 0x00002000,0x00002000,0x00002080,0x00002080, |
| 0x00000001,0x00000001,0x00000081,0x00000081, |
| 0x00002001,0x00002001,0x00002081,0x00002081, |
| },{ |
| 0x00000000,0x00000010,0x00800000,0x00800010, |
| 0x00010000,0x00010010,0x00810000,0x00810010, |
| 0x00000200,0x00000210,0x00800200,0x00800210, |
| 0x00010200,0x00010210,0x00810200,0x00810210, |
| },{ |
| 0x00000000,0x00000400,0x00001000,0x00001400, |
| 0x00080000,0x00080400,0x00081000,0x00081400, |
| 0x00000020,0x00000420,0x00001020,0x00001420, |
| 0x00080020,0x00080420,0x00081020,0x00081420, |
| },{ |
| 0x00000000,0x00000100,0x00040000,0x00040100, |
| 0x00000000,0x00000100,0x00040000,0x00040100, |
| 0x00000040,0x00000140,0x00040040,0x00040140, |
| 0x00000040,0x00000140,0x00040040,0x00040140, |
| }, |
| }; |
| |
| static const unsigned char ascii64[] = |
| "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
| /* 0000000000111111111122222222223333333333444444444455555555556666 */ |
| /* 0123456789012345678901234567890123456789012345678901234567890123 */ |
| |
| /* |
| * We match the behavior of UFC-crypt on systems where "char" is signed by |
| * default (the majority), regardless of char's signedness on our system. |
| */ |
| static uint32_t ascii_to_bin(int ch) |
| { |
| int sch = (ch < 0x80) ? ch : -(0x100 - ch); |
| int retval; |
| |
| retval = sch - '.'; |
| if (sch >= 'A') { |
| retval = sch - ('A' - 12); |
| if (sch >= 'a') |
| retval = sch - ('a' - 38); |
| } |
| retval &= 0x3f; |
| |
| return retval; |
| } |
| |
| /* |
| * When we choose to "support" invalid salts, nevertheless disallow those |
| * containing characters that would violate the passwd file format. |
| */ |
| static inline int ascii_is_unsafe(unsigned char ch) |
| { |
| return !ch || ch == '\n' || ch == ':'; |
| } |
| |
| static uint32_t setup_salt(uint32_t salt) |
| { |
| uint32_t obit, saltbit, saltbits; |
| unsigned int i; |
| |
| saltbits = 0; |
| saltbit = 1; |
| obit = 0x800000; |
| for (i = 0; i < 24; i++) { |
| if (salt & saltbit) |
| saltbits |= obit; |
| saltbit <<= 1; |
| obit >>= 1; |
| } |
| |
| return saltbits; |
| } |
| |
| void __des_setkey(const unsigned char *key, struct expanded_key *ekey) |
| { |
| uint32_t k0, k1, rawkey0, rawkey1; |
| unsigned int shifts, round, i, ibit; |
| |
| rawkey0 = |
| (uint32_t)key[3] | |
| ((uint32_t)key[2] << 8) | |
| ((uint32_t)key[1] << 16) | |
| ((uint32_t)key[0] << 24); |
| rawkey1 = |
| (uint32_t)key[7] | |
| ((uint32_t)key[6] << 8) | |
| ((uint32_t)key[5] << 16) | |
| ((uint32_t)key[4] << 24); |
| |
| /* |
| * Do key permutation and split into two 28-bit subkeys. |
| */ |
| k0 = k1 = 0; |
| for (i = 0, ibit = 28; i < 4; i++, ibit -= 4) { |
| unsigned int j = i << 1; |
| k0 |= key_perm_maskl[i][(rawkey0 >> ibit) & 0xf] | |
| key_perm_maskl[i + 4][(rawkey1 >> ibit) & 0xf]; |
| k1 |= key_perm_maskr[j][(rawkey0 >> ibit) & 0xf]; |
| ibit -= 4; |
| k1 |= key_perm_maskr[j + 1][(rawkey0 >> ibit) & 0xf] | |
| key_perm_maskr[i + 8][(rawkey1 >> ibit) & 0xf]; |
| } |
| |
| /* |
| * Rotate subkeys and do compression permutation. |
| */ |
| shifts = 0; |
| for (round = 0; round < 16; round++) { |
| uint32_t t0, t1; |
| uint32_t kl, kr; |
| |
| shifts += key_shifts[round]; |
| |
| t0 = (k0 << shifts) | (k0 >> (28 - shifts)); |
| t1 = (k1 << shifts) | (k1 >> (28 - shifts)); |
| |
| kl = kr = 0; |
| ibit = 25; |
| for (i = 0; i < 4; i++) { |
| kl |= comp_maskl0[i][(t0 >> ibit) & 7]; |
| kr |= comp_maskr0[i][(t1 >> ibit) & 7]; |
| ibit -= 4; |
| kl |= comp_maskl1[i][(t0 >> ibit) & 0xf]; |
| kr |= comp_maskr1[i][(t1 >> ibit) & 0xf]; |
| ibit -= 3; |
| } |
| ekey->l[round] = kl; |
| ekey->r[round] = kr; |
| } |
| } |
| |
| /* |
| * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format. |
| */ |
| void __do_des(uint32_t l_in, uint32_t r_in, |
| uint32_t *l_out, uint32_t *r_out, |
| uint32_t count, uint32_t saltbits, const struct expanded_key *ekey) |
| { |
| uint32_t l, r; |
| |
| /* |
| * Do initial permutation (IP). |
| */ |
| l = r = 0; |
| if (l_in | r_in) { |
| unsigned int i, ibit; |
| for (i = 0, ibit = 28; i < 8; i++, ibit -= 4) { |
| l |= ip_maskl[i][(l_in >> ibit) & 0xf] | |
| ip_maskl[i + 8][(r_in >> ibit) & 0xf]; |
| r |= ip_maskr[i][(l_in >> ibit) & 0xf] | |
| ip_maskr[i + 8][(r_in >> ibit) & 0xf]; |
| } |
| } |
| |
| while (count--) { |
| /* |
| * Do each round. |
| */ |
| unsigned int round = 16; |
| const uint32_t *kl = ekey->l; |
| const uint32_t *kr = ekey->r; |
| uint32_t f; |
| while (round--) { |
| uint32_t r48l, r48r; |
| /* |
| * Expand R to 48 bits (simulate the E-box). |
| */ |
| r48l = ((r & 0x00000001) << 23) |
| | ((r & 0xf8000000) >> 9) |
| | ((r & 0x1f800000) >> 11) |
| | ((r & 0x01f80000) >> 13) |
| | ((r & 0x001f8000) >> 15); |
| |
| r48r = ((r & 0x0001f800) << 7) |
| | ((r & 0x00001f80) << 5) |
| | ((r & 0x000001f8) << 3) |
| | ((r & 0x0000001f) << 1) |
| | ((r & 0x80000000) >> 31); |
| /* |
| * Do salting for crypt() and friends, and |
| * XOR with the permuted key. |
| */ |
| f = (r48l ^ r48r) & saltbits; |
| r48l ^= f ^ *kl++; |
| r48r ^= f ^ *kr++; |
| /* |
| * Do S-box lookups (which shrink it back to 32 bits) |
| * and do the P-box permutation at the same time. |
| */ |
| f = psbox[0][r48l >> 18] |
| | psbox[1][(r48l >> 12) & 0x3f] |
| | psbox[2][(r48l >> 6) & 0x3f] |
| | psbox[3][r48l & 0x3f] |
| | psbox[4][r48r >> 18] |
| | psbox[5][(r48r >> 12) & 0x3f] |
| | psbox[6][(r48r >> 6) & 0x3f] |
| | psbox[7][r48r & 0x3f]; |
| /* |
| * Now that we've permuted things, complete f(). |
| */ |
| f ^= l; |
| l = r; |
| r = f; |
| } |
| r = l; |
| l = f; |
| } |
| |
| /* |
| * Do final permutation (inverse of IP). |
| */ |
| { |
| unsigned int i, ibit; |
| uint32_t lo, ro; |
| lo = ro = 0; |
| for (i = 0, ibit = 28; i < 4; i++, ibit -= 4) { |
| ro |= fp_maskr[i][(l >> ibit) & 0xf] | |
| fp_maskr[i + 4][(r >> ibit) & 0xf]; |
| ibit -= 4; |
| lo |= fp_maskl[i][(l >> ibit) & 0xf] | |
| fp_maskl[i + 4][(r >> ibit) & 0xf]; |
| } |
| *l_out = lo; |
| *r_out = ro; |
| } |
| } |
| |
| static void des_cipher(const unsigned char *in, unsigned char *out, |
| uint32_t count, uint32_t saltbits, const struct expanded_key *ekey) |
| { |
| uint32_t l_out, r_out, rawl, rawr; |
| |
| rawl = |
| (uint32_t)in[3] | |
| ((uint32_t)in[2] << 8) | |
| ((uint32_t)in[1] << 16) | |
| ((uint32_t)in[0] << 24); |
| rawr = |
| (uint32_t)in[7] | |
| ((uint32_t)in[6] << 8) | |
| ((uint32_t)in[5] << 16) | |
| ((uint32_t)in[4] << 24); |
| |
| __do_des(rawl, rawr, &l_out, &r_out, count, saltbits, ekey); |
| |
| out[0] = l_out >> 24; |
| out[1] = l_out >> 16; |
| out[2] = l_out >> 8; |
| out[3] = l_out; |
| out[4] = r_out >> 24; |
| out[5] = r_out >> 16; |
| out[6] = r_out >> 8; |
| out[7] = r_out; |
| } |
| |
| static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char *output) |
| { |
| const unsigned char *key = (const unsigned char *)_key; |
| const unsigned char *setting = (const unsigned char *)_setting; |
| struct expanded_key ekey; |
| unsigned char keybuf[8]; |
| unsigned char *p, *q; |
| uint32_t count, salt, l, r0, r1; |
| unsigned int i; |
| |
| /* |
| * Copy the key, shifting each character left by one bit and padding |
| * with zeroes. |
| */ |
| q = keybuf; |
| while (q <= &keybuf[sizeof(keybuf) - 1]) { |
| *q++ = *key << 1; |
| if (*key) |
| key++; |
| } |
| __des_setkey(keybuf, &ekey); |
| |
| if (*setting == _PASSWORD_EFMT1) { |
| /* |
| * "new"-style: |
| * setting - underscore, 4 chars of count, 4 chars of salt |
| * key - unlimited characters |
| */ |
| for (i = 1, count = 0; i < 5; i++) { |
| uint32_t value = ascii_to_bin(setting[i]); |
| if (ascii64[value] != setting[i]) |
| return NULL; |
| count |= value << (i - 1) * 6; |
| } |
| if (!count) |
| return NULL; |
| |
| for (i = 5, salt = 0; i < 9; i++) { |
| uint32_t value = ascii_to_bin(setting[i]); |
| if (ascii64[value] != setting[i]) |
| return NULL; |
| salt |= value << (i - 5) * 6; |
| } |
| |
| while (*key) { |
| /* |
| * Encrypt the key with itself. |
| */ |
| des_cipher(keybuf, keybuf, 1, 0, &ekey); |
| /* |
| * And XOR with the next 8 characters of the key. |
| */ |
| q = keybuf; |
| while (q <= &keybuf[sizeof(keybuf) - 1] && *key) |
| *q++ ^= *key++ << 1; |
| __des_setkey(keybuf, &ekey); |
| } |
| |
| memcpy(output, setting, 9); |
| output[9] = '\0'; |
| p = (unsigned char *)output + 9; |
| } else { |
| /* |
| * "old"-style: |
| * setting - 2 chars of salt |
| * key - up to 8 characters |
| */ |
| count = 25; |
| |
| if (ascii_is_unsafe(setting[0]) || ascii_is_unsafe(setting[1])) |
| return NULL; |
| |
| salt = (ascii_to_bin(setting[1]) << 6) |
| | ascii_to_bin(setting[0]); |
| |
| output[0] = setting[0]; |
| output[1] = setting[1]; |
| p = (unsigned char *)output + 2; |
| } |
| |
| /* |
| * Do it. |
| */ |
| __do_des(0, 0, &r0, &r1, count, setup_salt(salt), &ekey); |
| |
| /* |
| * Now encode the result... |
| */ |
| l = (r0 >> 8); |
| *p++ = ascii64[(l >> 18) & 0x3f]; |
| *p++ = ascii64[(l >> 12) & 0x3f]; |
| *p++ = ascii64[(l >> 6) & 0x3f]; |
| *p++ = ascii64[l & 0x3f]; |
| |
| l = (r0 << 16) | ((r1 >> 16) & 0xffff); |
| *p++ = ascii64[(l >> 18) & 0x3f]; |
| *p++ = ascii64[(l >> 12) & 0x3f]; |
| *p++ = ascii64[(l >> 6) & 0x3f]; |
| *p++ = ascii64[l & 0x3f]; |
| |
| l = r1 << 2; |
| *p++ = ascii64[(l >> 12) & 0x3f]; |
| *p++ = ascii64[(l >> 6) & 0x3f]; |
| *p++ = ascii64[l & 0x3f]; |
| *p = 0; |
| |
| return output; |
| } |
| |
| char *__crypt_des(const char *key, const char *setting, char *output) |
| { |
| const char *test_key = "\x80\xff\x80\x01 " |
| "\x7f\x81\x80\x80\x0d\x0a\xff\x7f \x81 test"; |
| const char *test_setting = "_0.../9Zz"; |
| const char *test_hash = "_0.../9ZzX7iSJNd21sU"; |
| char test_buf[21]; |
| char *retval; |
| const char *p; |
| |
| if (*setting != _PASSWORD_EFMT1) { |
| test_setting = "\x80x"; |
| test_hash = "\x80x22/wK52ZKGA"; |
| } |
| |
| /* |
| * Hash the supplied password. |
| */ |
| retval = _crypt_extended_r_uut(key, setting, output); |
| |
| /* |
| * Perform a quick self-test. It is important that we make both calls |
| * to _crypt_extended_r_uut() from the same scope such that they likely |
| * use the same stack locations, which makes the second call overwrite |
| * the first call's sensitive data on the stack and makes it more |
| * likely that any alignment related issues would be detected. |
| */ |
| p = _crypt_extended_r_uut(test_key, test_setting, test_buf); |
| if (p && !strcmp(p, test_hash) && retval) |
| return retval; |
| |
| return (setting[0]=='*') ? "x" : "*"; |
| } |
