45 lines
757 B
C
45 lines
757 B
C
/* crc.c; do crc calculation. */
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#include <stdio.h>
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#include "hexbin.h"
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#include "crc.h"
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#include "../util/masks.h"
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#include "globals.h"
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extern void exit();
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unsigned long crc;
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#ifdef HQX
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void comp_q_crc(c)
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register unsigned int c;
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{
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unsigned char cc = c;
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crc = binhex_updcrc(crc, &cc, 1);
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}
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void comp_q_crc_n(s, e)
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register unsigned char *s, *e;
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{
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crc = binhex_updcrc(crc, s, e - s);
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}
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#endif /* HQX */
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void verify_crc(calc_crc, file_crc)
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unsigned long calc_crc, file_crc;
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{
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calc_crc &= WORDMASK;
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file_crc &= WORDMASK;
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if(calc_crc != file_crc) {
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(void)fprintf(stderr, "CRC mismatch: got 0x%04lx, need 0x%04lx\n",
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file_crc, calc_crc);
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#ifdef SCAN
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do_error("hexbin: CRC error");
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#endif /* SCAN */
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exit(1);
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}
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}
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