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WebSVN – planix.SVN – Blame – /os/branches/planix-v0/sys/src/cmd/cec/utils.c – Rev 2

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#include <u.h>
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#include <libc.h>
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#include "cec.h"
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static	int	fd	= -1;
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extern	char	*svc;
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void
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rawon(void)
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{
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	if(svc)
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		return;
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	if((fd = open("/dev/consctl", OWRITE)) == -1 ||
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	    write(fd, "rawon", 5) != 5)
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		fprint(2, "Can't make console raw\n");
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}
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void
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rawoff(void)
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{
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	if(svc)
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		return;
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	close(fd);
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}
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enum {
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	Perline	= 16,
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	Perch	= 3,
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};
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char	line[Perch*Perline+1];
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static void
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format(uchar *buf, int n, int t)
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{
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	int i, r;
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	for(i = 0; i < n; i++){
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		r = (i + t) % Perline;
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		if(r == 0 && i + t > 0)
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			fprint(2, "%s\n", line);
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		sprint(line + r*Perch, "%.2x ", buf[i]);
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	}
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}
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void
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dump(uchar *p, int n)
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{
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	format(p, n, 0);
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	if(n % 16 > 0)
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		print("%s\n", line);
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}