static char *
find_obppath (const char *sysfs_path_orig)
{
char *sysfs_path, *path;
size_t path_size = strlen (sysfs_path_orig) + sizeof ("/obppath");
sysfs_path = xstrdup (sysfs_path_orig);
path = xmalloc (path_size);
while (1)
{
int fd;
char *of_path;
struct stat st;
size_t size;
snprintf(path, path_size, "%s/obppath", sysfs_path);
#if 0
printf("Trying %s\n", path);
#endif
fd = open(path, O_RDONLY);
if (fd < 0 || fstat (fd, &st) < 0)
{
snprintf(path, path_size, "%s/devspec", sysfs_path);
fd = open(path, O_RDONLY);
}
if (fd < 0 || fstat (fd, &st) < 0)
{
kill_trailing_dir(sysfs_path);
if (!strcmp(sysfs_path, "/sys"))
{
grub_util_info (_("`obppath' not found in parent dirs of `%s',"
" no IEEE1275 name discovery"),
sysfs_path_orig);
free (path);
free (sysfs_path);
return NULL;
}
continue;
}
size = st.st_size;
of_path = xmalloc (size + MAX_DISK_CAT + 1);
memset(of_path, 0, size + MAX_DISK_CAT + 1);
read(fd, of_path, size);
close(fd);
trim_newline(of_path);
free (path);
free (sysfs_path);
return of_path;
}
}
static void
find_obppath(char *of_path, const char *sysfs_path_orig)
{
char *sysfs_path, *path;
sysfs_path = xmalloc (PATH_MAX);
path = xmalloc (PATH_MAX);
strcpy(sysfs_path, sysfs_path_orig);
while (1)
{
int fd;
snprintf(path, PATH_MAX, "%s/obppath", sysfs_path);
#if 0
printf("Trying %s\n", path);
#endif
fd = open(path, O_RDONLY);
if (fd < 0)
{
kill_trailing_dir(sysfs_path);
if (!strcmp(sysfs_path, "/sys"))
grub_util_error("'obppath' not found in parent dirs of %s",
sysfs_path_orig);
continue;
}
memset(of_path, 0, OF_PATH_MAX);
read(fd, of_path, OF_PATH_MAX);
close(fd);
trim_newline(of_path);
break;
}
free (path);
free (sysfs_path);
}