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Commit 54a1eb76 authored by San Mehat's avatar San Mehat
Browse files

toolbox: ifconfig: Implement mtu setting, plus setting interface addr should 

implicitly 'up' the iface just like normal ifconfig does.

Also convert tabs -> spaces
parent 83ec181d

toolbox/ifconfig.c

+40 −32
Original line number Diff line number Diff line
@@ -33,6 +33,12 @@ static inline void init_sockaddr_in(struct sockaddr_in *sin, const char *addr) 
    sin->sin_addr.s_addr = inet_addr(addr);

}



static void setmtu(int s, struct ifreq *ifr, const char *mtu)

{

    int m = atoi(mtu);

    ifr->ifr_mtu = m;

    if(ioctl(s, SIOCSIFMTU, ifr) < 0) die("SIOCSIFMTU");

}

static void setdstaddr(int s, struct ifreq *ifr, const char *addr)

{

    init_sockaddr_in((struct sockaddr_in *) &ifr->ifr_dstaddr, addr);
@@ -115,22 +121,24 @@ int ifconfig_main(int argc, char *argv[]) 
        running = (flags & IFF_RUNNING)      ? " running" : "";

        multi =   (flags & IFF_MULTICAST)    ? " multicast" : "";

        printf("%s%s%s%s%s%s]\n", updown, brdcst, loopbk, ppp, running, multi);







/*    char *updown, *brdcst, *loopbk, *ppp, *running, *multi; */



        return 0;

    }

    

    while(argc > 0) {

        if (!strcmp(argv[0], "up")) {

            setflags(s, &ifr, IFF_UP, 0);

        } else if (!strcmp(argv[0], "mtu")) {

            argc--, argv++;

            if (!argc) {

                errno = EINVAL;

                die("expecting a value for parameter \"mtu\"");

            }

            setmtu(s, &ifr, argv[0]);

        } else if (!strcmp(argv[0], "-pointopoint")) {

            setflags(s, &ifr, IFF_POINTOPOINT, 1);

        } else if (!strcmp(argv[0], "pointopoint")) {

            argc--, argv++;

		if (0 == argc) { 

            if (!argc) { 

                errno = EINVAL;

                die("expecting an IP address for parameter \"pointtopoint\"");

            }
@@ -140,16 +148,16 @@ int ifconfig_main(int argc, char *argv[]) 
            setflags(s, &ifr, 0, IFF_UP);

        } else if (!strcmp(argv[0], "netmask")) {

            argc--, argv++;

			if (0 == argc) { 

            if (!argc) { 

                errno = EINVAL;

                die("expecting an IP address for parameter \"netmask\"");

            }

            setnetmask(s, &ifr, argv[0]);

        } else if (isdigit(argv[0][0])) {

            setaddr(s, &ifr, argv[0]);

            setflags(s, &ifr, IFF_UP, 0);

        }

        argc--, argv++;

    }



    return 0;

}