Path: utzoo!mnetor!uunet!apctrc!zjat02
From: zjat02@apctrc.UUCP (Jon A. Tankersley)
Newsgroups: comp.unix.questions
Subject: Re: checking disk space from c program
Message-ID: <474@apctrc.UUCP>
Date: 10 Apr 88 04:18:45 GMT
References: <398@wpg.UUCP>
Reply-To: zjat02@apctrc.UUCP (Jon A. Tankersley)
Organization: Amoco Production Co, Tulsa Research Center
Lines: 23


On a Sun maybe on any BSD system - statfs has the information.
Here is a skeleton:
#include <sys/types.h>
#include <sys/vfs.h>
    .
    .
    .
    struct statfs buf;
/*
 * call statfs regarding a filename path and check out the results
 * filename MUST exist as either file or directory
 */
    if ( statfs(path,&buf) == 0 )
	/* return block_size*blocks_avail as size in bytes */
	return(buf.f_bsize*buf.f_bavail);
    else
	/* error, return -1 */
	return(-1);



-tank-