File:  [CSRG BSD Unix] / 43BSD / usr.lib / libpc / READC.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 16:12:55 2018 UTC (8 years, 1 month ago) by root
Branches: MAIN, BSD
CVS tags: HEAD, BSD43
BSD 4.3

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)READC.c 1.2 6/10/81";

#include "h00vars.h"

char
READC(curfile)

	register struct iorec	*curfile;
{
	char			data;

	if (curfile->funit & FWRITE) {
		ERROR("%s: Attempt to read, but open for writing\n",
			curfile->pfname);
		return;
	}
	IOSYNC(curfile);
	if (curfile->funit & EOFF) {
		ERROR("%s: Tried to read past end of file\n", curfile->pfname);
		return;
	}
	curfile->funit |= SYNC;
	return *curfile->fileptr;
}

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