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#include "sam.h"
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static int inerror=FALSE;
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/*
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 * A reasonable interface to the system calls
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 */
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void
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resetsys(void)
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{
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	inerror = FALSE;
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}
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void
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syserror(char *a)
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{
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	char buf[ERRMAX];
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	if(!inerror){
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		inerror=TRUE;
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		errstr(buf, sizeof buf);
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		dprint("%s: ", a);
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		error_s(Eio, buf);
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	}
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}
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int
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Read(int f, void *a, int n)
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{
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	char buf[ERRMAX];
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	if(read(f, (char *)a, n)!=n) {
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		if (lastfile)
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			lastfile->rescuing = 1;
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		errstr(buf, sizeof buf);
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		if (downloaded)
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			fprint(2, "read error: %s\n", buf);
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		rescue();
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		exits("read");
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	}
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	return n;
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}
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int
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Write(int f, void *a, int n)
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{
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	int m;
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	if((m=write(f, (char *)a, n))!=n)
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		syserror("write");
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	return m;
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}
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void
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Seek(int f, long n, int w)
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{
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	if(seek(f, n, w)==-1)
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		syserror("seek");
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}