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/* Solaris requires that /dev/tcp, /dev/udp, and /dev/zero are copied to
the /etc/maradns directory. This program does just that (alas, a
shell script which simply does a "mkdir /etc/maradns/dev; cd /dev;
cp tcp udp zero /etc/maradns/dev" does not work).
*/
/* Some locations */
#define DEV_DIRECTORY "/dev"
#define CHROOT_DEV_DIRECTORY "/etc/maradns/dev"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
/* Copy a device special file from DEV_DIRECTORY to CHROOT_DEV_DIRECTORY
input: The name of the device (e.g. "zero", "null", "tcp", or "udp")
output: 1; exit program on error
*/
int copy_device(char *devname) {
struct stat buf;
if(chdir(DEV_DIRECTORY) != 0) {
printf("Can not go to dev directory %s\n",DEV_DIRECTORY);
exit(1);
}
if(stat(devname,&buf) != 0) {
printf("Can not stat %s/%s\n",DEV_DIRECTORY,devname);
exit(1);
}
if(chdir(CHROOT_DEV_DIRECTORY) != 0) {
printf("Can not go to MaraDNS chroot dev directory %s\n",
CHROOT_DEV_DIRECTORY);
exit(1);
}
if(mknod(devname,buf.st_mode,buf.st_rdev) != 0) {
printf("Can not mknod device %s/%s\n",CHROOT_DEV_DIRECTORY,
DEV_DIRECTORY);
exit(2);
}
return 1;
}
main() {
copy_device("zero");
copy_device("tcp");
copy_device("udp");
}
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