Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <ip.h>
#include <bio.h>
#include <ndb.h>
#include "../dhcp.h"
#include "ipconfig.h"

void
pppbinddev(void)
{
        int ac, pid;
        char *av[12];
        Waitmsg *w;

        /* ppp does the binding */

        /* start with an empty config file */
        if(nip == 0)
                writendb("", 0, 0);

        switch(pid = rfork(RFPROC|RFFDG|RFMEM)){
        case -1:
                sysfatal("can't start ppp: %r");
        case 0:
                ac = 0;
                av[ac++] = "ppp";
                av[ac++] = "-uf";
                av[ac++] = "-p";
                av[ac++] = conf.dev;
                av[ac++] = "-x";
                av[ac++] = conf.mpoint;
                if(conf.baud != nil){
                        av[ac++] = "-b";
                        av[ac++] = conf.baud;
                }
                av[ac] = nil;
                exec("/bin/ip/ppp", av);
                exec("/ppp", av);
                sysfatal("execing /ppp: %r");
        }

        /* wait for ppp to finish connecting and configuring */
        while((w = wait()) != nil){
                if(w->pid == pid){
                        if(w->msg[0] != 0)
                                sysfatal("/ppp exited with status: %s", w->msg);
                        free(w);
                        break;
                }
                free(w);
        }
        if(w == nil)
                sysfatal("/ppp disappeared");

        /* ppp sets up the configuration itself */
        noconfig = 1;
        getndb();
}