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walnut-creek-CDROM
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UTILS
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SQUEEZE
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SQIO.C
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2000-06-30
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896b
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52 lines
#include <stdio.h>
#include "sqcom.h"
#include "sq.h"
#define ERROR -1
/* Get next byte from file and update checksum */
int
getc_crc(ib)
FILE *ib;
{
int c;
c = getc(ib);
if (c != EOF)
crc += c; /* checksum */
return c;
}
/* Output functions with error reporting */
static char obuf[128];
static int oblen = 0;
putce(c, iob)
int c;
FILE *iob;
{
obuf[oblen++] = c;
if (oblen >= sizeof(obuf)) oflush(iob);
}
putwe(w, iob)
int w;
FILE *iob;
{
obuf[oblen++] = w;
if (oblen >= sizeof(obuf)) oflush(iob);
obuf[oblen++] = w >> 8;
if (oblen >= sizeof(obuf)) oflush(iob);
}
oflush(iob) /* flush output buffer */
FILE *iob;
{
if (oblen && !fwrite(obuf, oblen, 1, iob)) {
printf("Error writing output file\n");
exit(1);
}
oblen = 0;
}