234 lines
6.3 KiB
C
234 lines
6.3 KiB
C
|
/****************************************************************
|
||
|
|
Copyright 1990, 1993 by AT&T Bell Laboratories and Bellcore.
|
||
|
|
|
||
|
|
Permission to use, copy, modify, and distribute this software
|
||
|
|
and its documentation for any purpose and without fee is hereby
|
||
|
|
granted, provided that the above copyright notice appear in all
|
||
|
|
copies and that both that the copyright notice and this
|
||
|
|
permission notice and warranty disclaimer appear in supporting
|
||
|
|
documentation, and that the names of AT&T Bell Laboratories or
|
||
|
|
Bellcore or any of their entities not be used in advertising or
|
||
|
|
publicity pertaining to distribution of the software without
|
||
|
|
specific, written prior permission.
|
||
|
|
|
||
|
|
AT&T and Bellcore disclaim all warranties with regard to this
|
||
|
|
software, including all implied warranties of merchantability
|
||
|
|
and fitness. In no event shall AT&T or Bellcore be liable for
|
||
|
|
any special, indirect or consequential damages or any damages
|
||
|
|
whatsoever resulting from loss of use, data or profits, whether
|
||
|
|
in an action of contract, negligence or other tortious action,
|
||
|
|
arising out of or in connection with the use or performance of
|
||
|
|
this software.
|
||
|
|
****************************************************************/
|
||
|
|
|
||
|
|
#include "stdio.h"
|
||
|
|
#ifndef KR_headers
|
||
|
|
#include "stdlib.h"
|
||
|
|
#include "fcntl.h" /* for declaration of open, O_RDONLY */
|
||
|
|
#endif
|
||
|
|
#ifdef MSDOS
|
||
|
|
#include "io.h"
|
||
|
|
#endif
|
||
|
|
#ifndef O_RDONLY
|
||
|
|
#define O_RDONLY 0
|
||
|
|
#endif
|
||
|
|
#ifndef O_BINARY
|
||
|
|
#define O_BINARY O_RDONLY
|
||
|
|
#endif
|
||
|
|
|
||
|
|
char *progname;
|
||
|
|
static int ignore_cr;
|
||
|
|
|
||
|
|
void
|
||
|
|
#ifdef KR_headers
|
||
|
|
usage(rc)
|
||
|
|
#else
|
||
|
|
usage(int rc)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
fprintf(stderr, "usage: %s [-r] [file [file...]]\n\
|
||
|
|
option -r ignores carriage return characters\n", progname);
|
||
|
|
exit(rc);
|
||
|
|
}
|
||
|
|
|
||
|
|
typedef unsigned char Uchar;
|
||
|
|
|
||
|
|
long
|
||
|
|
#ifdef KR_headers
|
||
|
|
sum32(sum, x, n)
|
||
|
|
register long sum;
|
||
|
|
register Uchar *x;
|
||
|
|
int n;
|
||
|
|
#else
|
||
|
|
sum32(register long sum, register Uchar *x, int n)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
register Uchar *xe;
|
||
|
|
static long crc_table[256] = {
|
||
|
|
0, 151466134, 302932268, 453595578,
|
||
|
|
-9583591, -160762737, -312236747, -463170141,
|
||
|
|
-19167182, -136529756, -321525474, -439166584,
|
||
|
|
28724267, 145849533, 330837255, 448732561,
|
||
|
|
-38334364, -189783822, -273059512, -423738914,
|
||
|
|
47895677, 199091435, 282375505, 433292743,
|
||
|
|
57448534, 174827712, 291699066, 409324012,
|
||
|
|
-67019697, -184128295, -300991133, -418902539,
|
||
|
|
-76668728, -227995554, -379567644, -530091662,
|
||
|
|
67364049, 218420295, 369985021, 520795499,
|
||
|
|
95791354, 213031020, 398182870, 515701056,
|
||
|
|
-86479645, -203465611, -388624945, -506380967,
|
||
|
|
114897068, 266207290, 349655424, 500195606,
|
||
|
|
-105581387, -256654301, -340093543, -490887921,
|
||
|
|
-134039394, -251295736, -368256590, -485758684,
|
||
|
|
124746887, 241716241, 358686123, 476458301,
|
||
|
|
-153337456, -2395898, -455991108, -304803798,
|
||
|
|
162629001, 11973919, 465560741, 314102835,
|
||
|
|
134728098, 16841012, 436840590, 319723544,
|
||
|
|
-144044613, -26395347, -446403433, -329032703,
|
||
|
|
191582708, 40657250, 426062040, 274858062,
|
||
|
|
-200894995, -50223749, -435620671, -284179369,
|
||
|
|
-172959290, -55056048, -406931222, -289830788,
|
||
|
|
182263263, 64630089, 416513267, 299125861,
|
||
|
|
229794136, 78991822, 532414580, 381366498,
|
||
|
|
-220224191, -69691945, -523123603, -371788549,
|
||
|
|
-211162774, -93398532, -513308602, -396314416,
|
||
|
|
201600371, 84090341, 503991391, 386759881,
|
||
|
|
-268078788, -117292630, -502591472, -351526778,
|
||
|
|
258520357, 107972019, 493278217, 341959839,
|
||
|
|
249493774, 131713432, 483432482, 366454964,
|
||
|
|
-239911657, -122417791, -474129349, -356881235,
|
||
|
|
-306674912, -457198666, -4791796, -156118374,
|
||
|
|
315967289, 466778031, 14362133, 165418627,
|
||
|
|
325258002, 442776452, 23947838, 141187752,
|
||
|
|
-334573813, -452329571, -33509849, -150495567,
|
||
|
|
269456196, 419996626, 33682024, 184992510,
|
||
|
|
-278767779, -429561909, -43239823, -194312473,
|
||
|
|
-288089226, -405591072, -52790694, -170046772,
|
||
|
|
297394031, 415166457, 62373443, 179343061,
|
||
|
|
383165416, 533828478, 81314500, 232780370,
|
||
|
|
-373594127, -524527769, -72022307, -223201717,
|
||
|
|
-401789990, -519431348, -100447498, -217810336,
|
||
|
|
392228803, 510123861, 91131631, 208256633,
|
||
|
|
-345918580, -496598246, -110112096, -261561802,
|
||
|
|
336361365, 487278339, 100800185, 251995695,
|
||
|
|
364526526, 482151208, 129260178, 246639108,
|
||
|
|
-354943065, -472854735, -119955829, -237064675,
|
||
|
|
459588272, 308539942, 157983644, 7181066,
|
||
|
|
-469170519, -317835713, -167286907, -16754925,
|
||
|
|
-440448382, -323454444, -139383890, -21619912,
|
||
|
|
450006683, 332774925, 148697015, 31186721,
|
||
|
|
-422325548, -271261118, -186797064, -36011154,
|
||
|
|
431888077, 280569435, 196114401, 45565815,
|
||
|
|
403200742, 286222960, 168180682, 50400092,
|
||
|
|
-412770561, -295522711, -177471533, -59977915,
|
||
|
|
-536157576, -384970002, -234585260, -83643454,
|
||
|
|
526853729, 375396087, 225003341, 74348507,
|
||
|
|
517040714, 399923932, 215944038, 98057200,
|
||
|
|
-507728301, -390357307, -206385281, -88735767,
|
||
|
|
498987548, 347783818, 263426864, 112501670,
|
||
|
|
-489671163, -338229613, -253864151, -103192641,
|
||
|
|
-479823314, -362722632, -244835582, -126932076,
|
||
|
|
470531639, 353144481, 235265819, 117632909
|
||
|
|
};
|
||
|
|
|
||
|
|
xe = x + n;
|
||
|
|
while(x < xe)
|
||
|
|
sum = crc_table[(sum ^ *x++) & 0xff] ^ (sum >> 8 & 0xffffff);
|
||
|
|
return sum;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
#ifdef KR_headers
|
||
|
|
cr_purge(buf, n)
|
||
|
|
Uchar *buf;
|
||
|
|
int n;
|
||
|
|
#else
|
||
|
|
cr_purge(Uchar *buf, int n)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
register Uchar *b, *b1, *be;
|
||
|
|
b = buf;
|
||
|
|
be = b + n;
|
||
|
|
while(b < be)
|
||
|
|
if (*b++ == '\r') {
|
||
|
|
b1 = b - 1;
|
||
|
|
while(b < be)
|
||
|
|
if ((*b1 = *b++) != '\r')
|
||
|
|
b1++;
|
||
|
|
return b1 - buf;
|
||
|
|
}
|
||
|
|
return n;
|
||
|
|
}
|
||
|
|
|
||
|
|
static Uchar Buf[16*1024];
|
||
|
|
|
||
|
|
void
|
||
|
|
#ifdef KR_headers
|
||
|
|
process(s, x)
|
||
|
|
char *s;
|
||
|
|
int x;
|
||
|
|
#else
|
||
|
|
process(char *s, int x)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
register int n;
|
||
|
|
long fsize, sum;
|
||
|
|
|
||
|
|
sum = 0;
|
||
|
|
fsize = 0;
|
||
|
|
while((n = read(x, (char *)Buf, sizeof(Buf))) > 0) {
|
||
|
|
if (ignore_cr)
|
||
|
|
n = cr_purge(Buf, n);
|
||
|
|
fsize += n;
|
||
|
|
sum = sum32(sum, Buf, n);
|
||
|
|
}
|
||
|
|
sum &= 0xffffffff;
|
||
|
|
if (n==0)
|
||
|
|
printf("%s\t%lx\t%ld\n", s, sum & 0xffffffff, fsize);
|
||
|
|
else { perror(s); }
|
||
|
|
close(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef KR_headers
|
||
|
|
main(argc, argv)
|
||
|
|
char **argv;
|
||
|
|
#else
|
||
|
|
main(int argc, char **argv)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
int x;
|
||
|
|
char *s;
|
||
|
|
static int rc;
|
||
|
|
|
||
|
|
progname = *argv;
|
||
|
|
s = *++argv;
|
||
|
|
if (s && *s == '-') {
|
||
|
|
switch(s[1]) {
|
||
|
|
case '?':
|
||
|
|
usage(0);
|
||
|
|
case 'r':
|
||
|
|
ignore_cr = 1;
|
||
|
|
case '-':
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
fprintf(stderr, "invalid option %s\n", s);
|
||
|
|
usage(1);
|
||
|
|
}
|
||
|
|
s = *++argv;
|
||
|
|
}
|
||
|
|
if (s) do {
|
||
|
|
x = open(s, O_RDONLY|O_BINARY);
|
||
|
|
if (x < 0) {
|
||
|
|
fprintf(stderr, "%s: can't open %s\n", progname, s);
|
||
|
|
rc |= 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
process(s, x);
|
||
|
|
}
|
||
|
|
while(s = *++argv);
|
||
|
|
else {
|
||
|
|
process("/dev/stdin", fileno(stdin));
|
||
|
|
}
|
||
|
|
return rc;
|
||
|
|
}
|