Re: sed not working on /proc files

[Cameron Heide <cheide@home.com>]

On Wed, 5 May 1999, Rogier Wolff wrote:

> ] unsigned long do_mmap(struct file * file, unsigned long addr, unsigned long len,
> ]	unsigned long prot, unsigned long flags, unsigned long off)
> ] {
> ]	struct mm_struct * mm = current->mm;
> ]	struct vm_area_struct * vma;
> ]	int error;
> ]
> ]	if ((len = PAGE_ALIGN(len)) == 0)
> ]		return addr;
> 
> And "here" is where this happens. 
> 
> Wouldn't it be better to just do "return NULL"?

Dunno if this is POSIX or not, but in this case (len <= 0) Solaris returns
MAP_FAILED and sets errno to EINVAL.


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