#include "tag.h"

void *
emalloc(ulong size)
{
	void *p;
	if((p = malloc(size)) == nil)
		sysfatal("emalloc: %r");
	return p;
}

void
readrec(Biobuf *b, void *buf, long buflen, long reclen, char *msg)
{
	vlong n;

	if(reclen > buflen)
		sysfatal("%s too big for buffer: %ld/%ld", msg, reclen, buflen);
	n = Bread(b, buf, reclen);
	if(n < 0)
		sysfatal("read %s: %r", msg);
	if(n < reclen)
		sysfatal("truncated %s: %r", msg);
}