>Number:         281
>Category:       kern
>Synopsis:       select(getdtablesize(),...) returns EINVAL
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    gnats-admin (Kernel Bug People)
>State:          open
>Class:          change-request
>Submitter-Id:   matthieu
>Arrival-Date:   Sun Jun  5 23:50:00 1994
>Originator:     Matthieu Herrb
>Organization:
	"LAAS/CNRS (Toulouse France)"
>Release:        94/05/27
>Environment:
	System: NetBSD cougar 0.9B NetBSD 0.9B (COUGAR) #0: Sat May 28 17:01:51 MET DST 1994 matthieu@cougar:/usr/src/sys/arch/i386/compile/COUGAR i386


>Description:
	With a standard kernel, the max number of file descriptors per process
	is greater than FD_SETSIZE.
	So programs that use getdtablesize() return value as 1st argument in 
	select() allways see it fail with errno set to EINVAL.
>How-To-Repeat:
	select(getdtablesize(), NULL, NULL, NULL, NULL);
>Fix:
	Either:
		1. Augment the default FD_SETSIZE value
		2. Silently ignore too big values for select() first 
	           argument (in src/sys/kern/sys_generic.c:517
		3. At least document it in select() man page.

 
>Audit-Trail:
>Unformatted:

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