Re: sed not working on /proc files
Chip Salzenberg (chip@perlsupport.com)
Mon, 26 Apr 1999 17:17:10 -0400
According to Jeremy Fitzhardinge:
> On 26-Apr-99 Stefan Monnier wrote:
> > open("/proc/meminfo", O_RDONLY) = 3
> > fstat(3, {st_mode=0, st_size=0, ...}) = 0
> > mmap(0, 0, PROT_READ, MAP_PRIVATE, 3, 0) = 0
>
> This is the problem. It stats the file, mmaps 0 bytes from it and finishes
> with no action. Presumeably if the mmap failed or stat said the file isn't a
> regular file it would use normal read.
Hm. Would it be a Bad Thing for mmap to fail on /proc files that
don't report true sizes?
--
Chip Salzenberg - a.k.a. - <chip@perlsupport.com>
"When do you work?" "Whenever I'm not busy."
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