ich poster hier jetzt einfach mal den quellcode von einem sysid change von ip30. evtl läuft dieser mit etwas arbeit auf auf ip32.
/*
Change the system id on an IP30/Octane running Irix 6.5
No warranty at all with this software; it may cause a nuclear reaction
in your machine.
Instructions:
cc -o sidchange-octane-ip30 sidchange-octane-ip30.c -lelf
./sidchange-octane-ip30 newsysid
Notes:
You must run this program as root
Run with no arguements this should print your current system id
Do this first as a test.
*/
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <nlist.h>
#include <string.h>
#include <errno.h>
int
main(int argc, char *argv[])
{
int kmem;
unsigned int new_id, cur_id;
off_t where;
struct nlist64 nl[2];
nl[0].n_name="is_octane_lx";
nl[1].n_name=NULL;
if (argc == 2)
new_id = strtoul(argv[1], NULL, 16);
if ((kmem = open("/dev/kmem", O_RDWR)) < 0) {
fprintf(stderr, "cannot open /dev/kmem\n");
fprintf(stderr, "%s\n", strerror(errno));
return 1;
}
if (nlist64("/unix", nl) < 0) {
fprintf(stderr, "cannot read namelist out of /dev/ksyms\n");
return 1;
}
if ((where = nl[0].n_value) == 0) {
fprintf(stderr, "unknown kernel variable is_octane_lx\n");
return 1;
}
if (lseek(kmem, where + 4, SEEK_SET) == (-1)) {
fprintf(stderr, "lseek on /dev/kmem failed\n");
return 1;
}
if (read(kmem, &cur_id, 4) < 4) {
fprintf(stderr, "read from /dev/kmem failed\n");
fprintf(stderr, "%s\n", strerror(errno));
return 1;
}
printf("The System ID Is Currently: %08x\n", cur_id);
if (argc == 2) {
if (lseek(kmem, where + 4, SEEK_SET) == (-1)) {
fprintf(stderr, "lseek on /dev/kmem failed\n");
return 1;
}
if (write(kmem, &new_id, 4) < 4) {
fprintf(stderr, "write to /dev/kmem failed\n");
fprintf(stderr, "%s\n", strerror(errno));
return 1;
}
printf("The System ID Has Changed To: %08x\n",new_id);
}
close(kmem);
return 0;
}
bye
thomas
Thema: wo genau sitzt das bauteil mit der mac ? (Gelesen 5477 mal)
