fromhexu.c
Walter Smith
wrs at cmu-cs-k.ARPA
Sun Dec 16 10:47:01 AEST 1984
Here is the Unix version of fromhex. Use it to convert BinHex.dl (in an
earlier post) for use on a Macintosh.
Usage is as a filter: fromhex <BinHex.dl >BinHex.rsrc
Sorry I can't give credit to the author, but I don't know who/what he/it is.
----------CUT-HERE------------
/* fromhex.c, UNIX version */
#include <stdio.h>
int bytes,sum;
main()
{
register i,v;
register n;
n = 0;
v = 0;
while ((i = getchar()) != EOF) {
i &= 0177;
if (i == '|')
break;
if (i < 0100 || i > 0117)
continue;
v = (v << 4) | (i & 0xF);
if ((++n & 1) == 0) {
putchar(v);
sum += v;
v = 0;
bytes++;
}
}
n = 0;
for (i = 0 ; i < 8 ; i++)
n = (n << 4) | (getchar() & 0xF);
if (n != (bytes + sum))
fprintf(stderr, "bad checksum\n");
else
fprintf(stderr, "checksum good!\n");
exit(0);
}
--
Walter Smith, CS undergraduate, Carnegie-Mellon University
uucp: ...!seismo!cmu-cs-k!wrs
arpa: wrs at cmu-cs-k.ARPA
usps: Box 874; 5115 Margaret Morrison St.; Pittsburgh, PA 15213
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