1 /****************************************************************
2 Copyright 1990 by AT&T Bell Laboratories and Bellcore.
4 Permission to use, copy, modify, and distribute this software
5 and its documentation for any purpose and without fee is hereby
6 granted, provided that the above copyright notice appear in all
7 copies and that both that the copyright notice and this
8 permission notice and warranty disclaimer appear in supporting
9 documentation, and that the names of AT&T Bell Laboratories or
10 Bellcore or any of their entities not be used in advertising or
11 publicity pertaining to distribution of the software without
12 specific, written prior permission.
14 AT&T and Bellcore disclaim all warranties with regard to this
15 software, including all implied warranties of merchantability
16 and fitness. In no event shall AT&T or Bellcore be liable for
17 any special, indirect or consequential damages or any damages
18 whatsoever resulting from loss of use, data or profits, whether
19 in an action of contract, negligence or other tortious action,
20 arising out of or in connection with the use or performance of
22 ****************************************************************/
31 fprintf(stderr, "usage: %s [file [file...]]\n", progname);
51 fprintf(stderr, "invalid option %s\n", s);
59 fprintf(stderr, "%s: can't open %s\n", progname, s);
67 process("/dev/stdin", fileno(stdin));
72 typedef unsigned char uchar;
81 static long crc_table[256] = {
82 0, 151466134, 302932268, 453595578,
83 -9583591, -160762737, -312236747, -463170141,
84 -19167182, -136529756, -321525474, -439166584,
85 28724267, 145849533, 330837255, 448732561,
86 -38334364, -189783822, -273059512, -423738914,
87 47895677, 199091435, 282375505, 433292743,
88 57448534, 174827712, 291699066, 409324012,
89 -67019697, -184128295, -300991133, -418902539,
90 -76668728, -227995554, -379567644, -530091662,
91 67364049, 218420295, 369985021, 520795499,
92 95791354, 213031020, 398182870, 515701056,
93 -86479645, -203465611, -388624945, -506380967,
94 114897068, 266207290, 349655424, 500195606,
95 -105581387, -256654301, -340093543, -490887921,
96 -134039394, -251295736, -368256590, -485758684,
97 124746887, 241716241, 358686123, 476458301,
98 -153337456, -2395898, -455991108, -304803798,
99 162629001, 11973919, 465560741, 314102835,
100 134728098, 16841012, 436840590, 319723544,
101 -144044613, -26395347, -446403433, -329032703,
102 191582708, 40657250, 426062040, 274858062,
103 -200894995, -50223749, -435620671, -284179369,
104 -172959290, -55056048, -406931222, -289830788,
105 182263263, 64630089, 416513267, 299125861,
106 229794136, 78991822, 532414580, 381366498,
107 -220224191, -69691945, -523123603, -371788549,
108 -211162774, -93398532, -513308602, -396314416,
109 201600371, 84090341, 503991391, 386759881,
110 -268078788, -117292630, -502591472, -351526778,
111 258520357, 107972019, 493278217, 341959839,
112 249493774, 131713432, 483432482, 366454964,
113 -239911657, -122417791, -474129349, -356881235,
114 -306674912, -457198666, -4791796, -156118374,
115 315967289, 466778031, 14362133, 165418627,
116 325258002, 442776452, 23947838, 141187752,
117 -334573813, -452329571, -33509849, -150495567,
118 269456196, 419996626, 33682024, 184992510,
119 -278767779, -429561909, -43239823, -194312473,
120 -288089226, -405591072, -52790694, -170046772,
121 297394031, 415166457, 62373443, 179343061,
122 383165416, 533828478, 81314500, 232780370,
123 -373594127, -524527769, -72022307, -223201717,
124 -401789990, -519431348, -100447498, -217810336,
125 392228803, 510123861, 91131631, 208256633,
126 -345918580, -496598246, -110112096, -261561802,
127 336361365, 487278339, 100800185, 251995695,
128 364526526, 482151208, 129260178, 246639108,
129 -354943065, -472854735, -119955829, -237064675,
130 459588272, 308539942, 157983644, 7181066,
131 -469170519, -317835713, -167286907, -16754925,
132 -440448382, -323454444, -139383890, -21619912,
133 450006683, 332774925, 148697015, 31186721,
134 -422325548, -271261118, -186797064, -36011154,
135 431888077, 280569435, 196114401, 45565815,
136 403200742, 286222960, 168180682, 50400092,
137 -412770561, -295522711, -177471533, -59977915,
138 -536157576, -384970002, -234585260, -83643454,
139 526853729, 375396087, 225003341, 74348507,
140 517040714, 399923932, 215944038, 98057200,
141 -507728301, -390357307, -206385281, -88735767,
142 498987548, 347783818, 263426864, 112501670,
143 -489671163, -338229613, -253864151, -103192641,
144 -479823314, -362722632, -244835582, -126932076,
145 470531639, 353144481, 235265819, 117632909
150 sum = crc_table[(sum ^ *x++) & 0xff] ^ (sum >> 8 & 0xffffff);
164 while((n = read(x, (char *)buf, sizeof(buf))) > 0) {
166 sum = sum32(sum, buf, n);
170 printf("%s\t%lx\t%ld\n", s, sum & 0xffffffff, fsize);