/* Try several methods to determine the hostname from a Linux or
* FreeBSD guest. Note that type and distro have been set, so we can
* use that information to direct the search.
*/
static int
check_hostname_unix (guestfs_h *g, struct inspect_fs *fs)
{
switch (fs->type) {
case OS_TYPE_LINUX:
case OS_TYPE_HURD:
/* Red Hat-derived would be in /etc/sysconfig/network or
* /etc/hostname (RHEL 7+, F18+). Debian-derived in the file
* /etc/hostname. Very old Debian and SUSE use /etc/HOSTNAME.
* It's best to just look for each of these files in turn, rather
* than try anything clever based on distro.
*/
if (guestfs_is_file (g, "/etc/HOSTNAME")) {
fs->hostname = guestfs___first_line_of_file (g, "/etc/HOSTNAME");
if (fs->hostname == NULL)
return -1;
if (STREQ (fs->hostname, "")) {
free (fs->hostname);
fs->hostname = NULL;
}
}
if (!fs->hostname && guestfs_is_file (g, "/etc/hostname")) {
fs->hostname = guestfs___first_line_of_file (g, "/etc/hostname");
if (fs->hostname == NULL)
return -1;
if (STREQ (fs->hostname, "")) {
free (fs->hostname);
fs->hostname = NULL;
}
}
if (!fs->hostname && guestfs_is_file (g, "/etc/sysconfig/network")) {
const char *configfiles[] = { "/etc/sysconfig/network", NULL };
if (inspect_with_augeas (g, fs, configfiles,
check_hostname_redhat) == -1)
return -1;
}
break;
case OS_TYPE_FREEBSD:
case OS_TYPE_NETBSD:
/* /etc/rc.conf contains the hostname, but there is no Augeas lens
* for this file.
*/
if (guestfs_is_file (g, "/etc/rc.conf")) {
if (check_hostname_freebsd (g, fs) == -1)
return -1;
}
break;
case OS_TYPE_WINDOWS: /* not here, see check_windows_system_registry */
case OS_TYPE_DOS:
case OS_TYPE_OPENBSD:
case OS_TYPE_UNKNOWN:
/* nothing */;
}
return 0;
}
/* Debian/Ubuntu install disks are easy ...
*
* These files are added by the debian-cd program, and it is worth
* looking at the source code to determine exact values, in
* particular '/usr/share/debian-cd/tools/start_new_disc'
*
* XXX Architecture? We could parse it out of the product name
* string, but that seems quite hairy. We could look for the names
* of packages. Also note that some Debian install disks are
* multiarch.
*/
static int
check_debian_installer_root (guestfs_h *g, struct inspect_fs *fs)
{
fs->product_name = guestfs___first_line_of_file (g, "/.disk/info");
if (!fs->product_name)
return -1;
fs->type = OS_TYPE_LINUX;
if (STRPREFIX (fs->product_name, "Ubuntu"))
fs->distro = OS_DISTRO_UBUNTU;
else if (STRPREFIX (fs->product_name, "Debian"))
fs->distro = OS_DISTRO_DEBIAN;
(void) guestfs___parse_major_minor (g, fs);
if (guestfs_is_file (g, "/.disk/cd_type") > 0) {
char *cd_type = guestfs___first_line_of_file (g, "/.disk/cd_type");
if (!cd_type)
return -1;
if (STRPREFIX (cd_type, "dvd/single") ||
STRPREFIX (cd_type, "full_cd/single")) {
fs->is_multipart_disk = 0;
fs->is_netinst_disk = 0;
}
else if (STRPREFIX (cd_type, "dvd") ||
STRPREFIX (cd_type, "full_cd")) {
fs->is_multipart_disk = 1;
fs->is_netinst_disk = 0;
}
else if (STRPREFIX (cd_type, "not_complete")) {
fs->is_multipart_disk = 0;
fs->is_netinst_disk = 1;
}
free (cd_type);
}
return 0;
}
/* Set fs->product_name to the first line of the release file. */
static int
parse_release_file (guestfs_h *g, struct inspect_fs *fs,
const char *release_filename)
{
fs->product_name = guestfs___first_line_of_file (g, release_filename);
if (fs->product_name == NULL)
return -1;
if (STREQ (fs->product_name, "")) {
free (fs->product_name);
fs->product_name = NULL;
error (g, _("release file %s is empty or malformed"), release_filename);
return -1;
}
return 0;
}
