Date: Tue, 16 Sep 1997 18:04:37 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, j@uriah.heep.sax.de Cc: davidg@FreeBSD.ORG, freebsd-bugs@FreeBSD.ORG, ortmann@sparc.isl.net Subject: Re: kern/4550 Message-ID: <199709160804.SAA24027@godzilla.zeta.org.au>
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>> >Synopsis: /proc/curproc/{mem,status} are 0 size
>> >...
>> >The size is intentionally 0.
>>
>> The bug is that "regular" files are irregular.
>
>You mean, it should better display as:
>
>i-w------- 1 root wheel ctl
>ir--r--r-- 1 root wheel etype
I mean, so that little things like stdio can work.
Bruce
>From fseek.c:
/*
* Can only optimise if:
* reading (and not reading-and-writing);
* not unbuffered; and
* this is a `regular' Unix file (and hence seekfn==__sseek).
[and regular files are actually regular]
* We must check __NBF first, because it is possible to have __NBF
* and __SOPT both set.
*/
if (fp->_bf._base == NULL)
__smakebuf(fp);
if (fp->_flags & (__SWR | __SRW | __SNBF | __SNPT))
goto dumb;
if ((fp->_flags & __SOPT) == 0) {
if (seekfn != __sseek ||
fp->_file < 0 || fstat(fp->_file, &st) ||
(st.st_mode & S_IFMT) != S_IFREG) {
fp->_flags |= __SNPT;
goto dumb;
}
fp->_blksize = st.st_blksize;
fp->_flags |= __SOPT;
}
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