Debian Bug report logs - #18407
Network install/configure does not allow Arcnet

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Trannie Carter <borys@bill.ncats.net>

To: submit@bugs.debian.org

Subject: Network install/configure does not allow Arcnet

Date: Fri, 20 Feb 1998 02:47:54 -0500 (EST)

Package: Debian
Version: 1.3.1

As part of the 1.3.1 install, it asks if you are part of a network.
If so, it goes on to ask what your primary interface is, and lists
such things as Ethernet, Token Ring, and PPP.  Arcnet(arc0) is
strangely absent from this list.

Adding arc0, with proper checks to see that the arcnet module is being
loaded perhaps, would be a good idea, I think.


Trannie Carter

Message #12 received at 18407-quiet@bugs.debian.org (full text, mbox, reply):

From: Peter Tobias <tobias@et-inf.fho-emden.de>

To: 18407-quiet@bugs.debian.org

Subject: Re: Bug#18407: Network install/configure does not allow Arcnet

Date: Sat, 28 Feb 1998 12:34:28 +0100

On Feb 20, Trannie Carter wrote:
> Package: Debian
> Version: 1.3.1
> 
> As part of the 1.3.1 install, it asks if you are part of a network.
> If so, it goes on to ask what your primary interface is, and lists
> such things as Ethernet, Token Ring, and PPP.  Arcnet(arc0) is
> strangely absent from this list.
> 
> Adding arc0, with proper checks to see that the arcnet module is being
> loaded perhaps, would be a good idea, I think.

If the interface is already configured you can use the following small
C program to get a list of the configured interfaces, otherwise
/proc/modules is your friend :-).



#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>

char *getiflist(void);

void main()
{
    printf("Found: %s\n", getiflist());
}

char *getiflist(void)
{
    static unsigned char devlist[1024];

    int sock_fd, n;
    struct ifconf ifc;
    struct ifreq ibuf[16], ifrfl;
    struct ifreq *ifrp, *ifend;
    unsigned char oldifnam[64];

    devlist[0] = '\0';
    oldifnam[0] = '\0';

    if ((sock_fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
        return(NULL);
    }

    ifc.ifc_len = sizeof(ibuf);
    ifc.ifc_buf = (caddr_t) ibuf;
    if (ioctl(sock_fd, SIOCGIFCONF, (char *) &ifc) < 0 ||
        ifc.ifc_len < sizeof(struct ifreq)) {
        close(sock_fd);
        return(NULL);
    }

    ifrp = ibuf;
    ifend = (struct ifreq *) ((char *) ibuf + ifc.ifc_len);
    while (ifrp < ifend) {
#ifdef DONT_HAVE_SIOCGIFFLAGS
        strcat(devlist, ifrp->ifr_name);
        strcat(devlist, ",");
#else
        ifrfl = *ifrp;
        if (ioctl(sock_fd, SIOCGIFFLAGS, (char *) &ifrfl) < 0) {
            printf("SIOCGIFFLAGS failed\n");
        } else {
            if (ifrfl.ifr_flags & IFF_UP) {
                if (strncmp(oldifnam, ifrp->ifr_name, sizeof(oldifnam)) != 0) {
                    strcat(devlist, ifrp->ifr_name);
                    strcat(devlist, ",");
                    strncpy(oldifnam, ifrp->ifr_name, sizeof(oldifnam));
                }
            }
        }
#endif
#ifdef HAVE_SOCKADDR_SA_LEN
        n = ifrp->ifr_addr.sa_len + sizeof(ifrp->ifr_name);
#else
        n = 0;
#endif
        if (n < sizeof(*ifrp)) {
            n = sizeof(*ifrp);
        }
        ifrp = (struct ifreq *) ((char *) ifrp + n);
    }

    close(sock_fd);

    /* remove trailing ',' character */
    if (strlen(devlist) > 0) {
        devlist[strlen(devlist)-1] = '\0';
    }
    return(devlist);
}


Thanks,

Peter

-- 
Peter Tobias <tobias@et-inf.fho-emden.de> <tobias@debian.org> <tobias@linux.de>
PGP ID EFAA400D, fingerprint = 06 89 EB 2E 01 7C B4 02  04 62 89 6C 2F DD F1 3C 

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