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Re: ioctl(2) vs sys/ioctl.h



On Sun, 19 Dec 2010, Christos Zoulas wrote:

In article <Pine.NEB.4.64.1012181604050.27150%quicky.whooppee.com@localhost>,
Paul Goyette  <paul%whooppee.com@localhost> wrote:
Is there some reason why there is a discrepancy in the definition of
ioctl()?

From man page ioctl(2)

        SYNOPSIS
             #include <sys/ioctl.h>

             int
             ioctl(int d, unsigned long request, void *argp);


Yet, from sys/ioctl.h we have

        __BEGIN_DECLS
        int     ioctl(int, unsigned long, ...);
        __END_DECLS


Most of our ioctl's take pointer arguments. Some streams ioctls though
take int arguments (ioctl(fd, I_FLUSH, FLUSHR) for example) and using
void * as the argument would not compile cleanly. I think that we
should not have void * in the man page either.

Should the man page be updated to match reality?


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