I found some documentation that taught me to do this... I've got
copies if you like. (ps.gz) I found them on one of Red Hat's sites
several years ago and saved them.
#include <stdio.h>
#include <unistd.h>
#define EXIT_FAILURE 1
#define EXIT_SUCCESS 0
struct option_rom_header {
unsigned char sig1; /* Signature byte 1 */
unsigned char sig2; /* Signature byte 2 */
unsigned char len; /* Option ROM length in 512-byte blocks */
void *entry; /* Initialization entry point */
unsigned char reserved[17];
unsigned int pci_data_offset;
unsigned int expansion_header_struct_offset;
};
int
main (int argc, char ** argv)
{
FILE *kcore;
int status;
size_t n;
struct option_rom_header hdr;
long int where;
if ((kcore = fopen ("/proc/kcore", "r")) == (FILE*)NULL) {
perror ("fopen /proc/kcore");
exit (EXIT_FAILURE);
}
for (where = 0xC0000; where <= 0xEFFFF; where += 0x0800) {
if ((status = fseek (kcore, where, SEEK_SET)) != 0) {
perror ("fseek");
exit (EXIT_FAILURE);
}
if ((n = fread (&hdr, sizeof hdr, (size_t)1, kcore)) != 1) {
perror ("fread");
exit (EXIT_FAILURE);
}
if ((hdr.sig1 == 0x55) && (hdr.sig2 == 0xAA)) {
printf ("%p: %i blocks @ %p\n", where, hdr.len, hdr.entry);
}
}
if ((status = fclose (kcore)) != 0) {
perror ("fclose /proc/kcore");
exit (EXIT_FAILURE);
}
exit (EXIT_SUCCESS);
}
--
mailto: Karl M. Hegbloom <[EMAIL PROTECTED]>
http://people.debian.org/~karlheg/
