Attachment 316756 Details for Bug 462352 – test program

test program

prog.cc (text/plain), 1.01 KB, created by Flavio Leitner on 2008-09-15 16:14:49 UTC

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Creator: Flavio Leitner

Created: 2008-09-15 16:14:49 UTC

Size: 1.01 KB

patch

obsolete

>/* sample program -
> *   compiles fine with either kernel
> *     runs file on kernel <= 2.6.18-53
> *       on kernel 2.6.18-92 gets Canât do ioctl: operation not supported
> *       */
>   
>
>#include <iostream>
>#include <unistd.h>
>#include <fcntl.h>
>#include <sys/ioctl.h>
>#include <net/if.h>
>#include <linux/types.h>
>#include <linux/sockios.h>
>#include <linux/ethtool.h>
>
>using namespace std;
>
>main() {
> int rv=0;
> ifreq ifr;
> memset(&ifr,0,sizeof(ifr));
> strcpy(ifr.ifr_name, "eth0");
> int fd = socket(AF_INET, SOCK_DGRAM,0);
> if(fd == -1) {
>   perror("Can't open device");
>   exit(1);
> }
> ethtool_perm_addr *a;
> a = (ethtool_perm_addr *)calloc(1,sizeof(*a) + 16);
> a->cmd = ETHTOOL_GPERMADDR;
> a->size = 16;
> ifr.ifr_data = (caddr_t)a;
> if(ioctl(fd, SIOCETHTOOL, &ifr) != -1) {
>   unsigned long long result = 0;
>   int len = a->size > sizeof(result) ? sizeof(result):a->size;
>   memcpy(&result,a->data,len);
>   cout << hex << result << endl;
> } else {
>   perror("Can't do ioctl");
>   rv=1;
> }
> close(fd);
> free(a);
> exit(rv);
>}

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