[src/netbsd-2-0]: src/distrib/utils/sparkcrc Pull up revision 1.1 (requested ...

[tron <tron%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/56addcb20fb3
branches:  netbsd-2-0
changeset: 561414:56addcb20fb3
user:      tron <tron%NetBSD.org@localhost>
date:      Thu Jun 17 08:03:09 2004 +0000

description:
Pull up revision 1.1 (requested by abs in ticket #497):
Import a trivial program to generate 16bit CRCs as used in sparkive archives.
For use by mksparkive.sh in generating the acorn32 bootloader sparkive.

diffstat:

 distrib/utils/sparkcrc/Makefile   |    8 ++
 distrib/utils/sparkcrc/sparkcrc.c |  105 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 113 insertions(+), 0 deletions(-)

diffs (121 lines):

diff -r 21b04ffa0936 -r 56addcb20fb3 distrib/utils/sparkcrc/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/distrib/utils/sparkcrc/Makefile   Thu Jun 17 08:03:09 2004 +0000
@@ -0,0 +1,8 @@
+#      $NetBSD: Makefile,v 1.2.2.2 2004/06/17 08:03:09 tron Exp $
+
+PROG=  sparkcrc
+NOMAN= # defined
+
+WARNS= 2
+
+.include <bsd.prog.mk>
diff -r 21b04ffa0936 -r 56addcb20fb3 distrib/utils/sparkcrc/sparkcrc.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/distrib/utils/sparkcrc/sparkcrc.c Thu Jun 17 08:03:09 2004 +0000
@@ -0,0 +1,105 @@
+/*     $NetBSD: sparkcrc.c,v 1.1.2.2 2004/06/17 08:03:09 tron Exp $    */
+
+/*-
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by David Brownlee
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+/*
+ * Trivial progarm to generate a crc suitable for use in a sparkive file
+ * Based on an algorithm by David Schwaderer
+ */
+
+uint16_t crclookup[256] = {
+       0, 49345, 49537, 320, 49921, 960, 640, 49729, 50689, 1728,
+       1920, 51009, 1280, 50625, 50305, 1088, 52225, 3264, 3456,
+       52545, 3840, 53185, 52865, 3648, 2560, 51905, 52097, 2880,
+       51457, 2496, 2176, 51265, 55297, 6336, 6528, 55617, 6912,
+       56257, 55937, 6720, 7680, 57025, 57217, 8000, 56577, 7616,
+       7296, 56385, 5120, 54465, 54657, 5440, 55041, 6080, 5760,
+       54849, 53761, 4800, 4992, 54081, 4352, 53697, 53377, 4160,
+       61441, 12480, 12672, 61761, 13056, 62401, 62081, 12864,
+       13824, 63169, 63361, 14144, 62721, 13760, 13440, 62529,
+       15360, 64705, 64897, 15680, 65281, 16320, 16000, 65089,
+       64001, 15040, 15232, 64321, 14592, 63937, 63617, 14400,
+       10240, 59585, 59777, 10560, 60161, 11200, 10880, 59969,
+       60929, 11968, 12160, 61249, 11520, 60865, 60545, 11328,
+       58369, 9408, 9600, 58689, 9984, 59329, 59009, 9792, 8704,
+       58049, 58241, 9024, 57601, 8640, 8320, 57409, 40961, 24768,
+       24960, 41281, 25344, 41921, 41601, 25152, 26112, 42689,
+       42881, 26432, 42241, 26048, 25728, 42049, 27648, 44225,
+       44417, 27968, 44801, 28608, 28288, 44609, 43521, 27328,
+       27520, 43841, 26880, 43457, 43137, 26688, 30720, 47297,
+       47489, 31040, 47873, 31680, 31360, 47681, 48641, 32448,
+       32640, 48961, 32000, 48577, 48257, 31808, 46081, 29888,
+       30080, 46401, 30464, 47041, 46721, 30272, 29184, 45761,
+       45953, 29504, 45313, 29120, 28800, 45121, 20480, 37057,
+       37249, 20800, 37633, 21440, 21120, 37441, 38401, 22208,
+       22400, 38721, 21760, 38337, 38017, 21568, 39937, 23744,
+       23936, 40257, 24320, 40897, 40577, 24128, 23040, 39617,
+       39809, 23360, 39169, 22976, 22656, 38977, 34817, 18624,
+       18816, 35137, 19200, 35777, 35457, 19008, 19968, 36545,
+       36737, 20288, 36097, 19904, 19584, 35905, 17408, 33985,
+       34177, 17728, 34561, 18368, 18048, 34369, 33281, 17088,
+       17280, 33601, 16640, 33217, 32897, 16448
+};
+
+int
+main(int argc, char **argv)
+{
+       unsigned char buf[1024];
+       FILE *fds;
+       int len;
+       int i;
+       int crc = 0;
+
+       if (argc != 2) {
+               fprintf(stderr, "Usage: sparkcrc filename\n");
+               exit(0);
+       }
+       if (!(fds = fopen(argv[1], "r")))
+               err(1, "Unable to open file '%s'", argv[1]);
+       while ((len = fread(buf, 1, sizeof(buf), fds)))
+               for (i = 0; i < len; ++i) {
+                       crc = (crc >> 8) ^ crclookup[(crc & 0xff) ^ buf[i]];
+               }
+       fclose(fds);
+       printf("%d\n", (int)crc);
+       return (0);
+}