/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* * pANS stdio -- fgets */#include "iolib.h"char *fgets(char *as, int n, FILE *f){	int c;	char *s=as;	c = EOF;	while(n>1 && (c=getc(f))!=EOF){		*s++=c;		--n;		if(c=='\n') break;	}	if(c==EOF && s==as	|| ferror(f)) return NULL;	if(n) *s='\0';	return as;}