Re: Reauthentication implementation flaw due to EINTR

[Samuel Thibault]

Samuel Thibault, le Tue 29 Dec 2009 23:34:08 +0100, a écrit :
> > OK, I can use that for the client side.  I don't really have a setup
> > for testing the auth server though.  Do you use a sub-Hurd or something?
> 
> I've never managed to find time to set up a sub-hurd, so I just debug
> with writes on the console :)

More precisely, I use

#include <stdio.h>
#include <device/device.h>

static void mylog(const char *fmt, ...)
{
        static mach_port_t device = MACH_PORT_NULL;

        if (device  == MACH_PORT_NULL) {
                mach_port_t priv, dev;
                if (! get_privileged_ports(NULL, &priv)
                && !  device_open(priv, D_WRITE, "console", &dev))
                device = dev;
        }
        if (device != MACH_PORT_NULL) {
                char s[128];
                int n;
                va_list vap;
                va_start(vap, fmt);
                n = vsnprintf(s, sizeof(s), fmt, vap);
                va_end(vap);
                device_write(device, 0, 0, s, n, &n);
        }
}

Samuel