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-rw-r--r--examples/virt-dhcp-address.c97
1 files changed, 37 insertions, 60 deletions
diff --git a/examples/virt-dhcp-address.c b/examples/virt-dhcp-address.c
index c6f25c6c..c4e3647a 100644
--- a/examples/virt-dhcp-address.c
+++ b/examples/virt-dhcp-address.c
@@ -17,7 +17,6 @@
#include <assert.h>
#include <guestfs.h>
-#include <hivex.h>
static int compare_keys_len (const void *p1, const void *p2);
static size_t count_strings (char *const *argv);
@@ -198,11 +197,8 @@ static void
print_dhcp_address_windows (guestfs_h *g, char *root_fs)
{
char *system_path;
- char tmpfile[] = "/tmp/systemXXXXXX";
- int fd, err;
- hive_h *h;
- hive_node_h root, node, *nodes;
- hive_value_h value;
+ int64_t root, node, value;
+ struct guestfs_hivex_node_list *nodes;
char *controlset;
size_t i;
char *p;
@@ -215,71 +211,52 @@ print_dhcp_address_windows (guestfs_h *g, char *root_fs)
exit (EXIT_FAILURE);
}
- fd = mkstemp (tmpfile);
- if (fd == -1) {
- perror ("mkstemp");
- exit (EXIT_FAILURE);
- }
-
- /* Download the SYSTEM hive. */
- if (guestfs_download (g, system_path, tmpfile) == -1)
+ /* Open the hive to parse it. Note that before libguestfs 1.19.35
+ * you had to download the file and parse it using hivex(3). Since
+ * libguestfs 1.19.35, parts of the hivex(3) API are now exposed
+ * through libguestfs, and that is what we'll use here because it is
+ * more convenient and avoids having to download the hive.
+ */
+ if (guestfs_hivex_open (g, system_path, -1) == -1)
exit (EXIT_FAILURE);
free (system_path);
- controlset = guestfs_inspect_get_windows_current_control_set (g, root_fs);
- if (controlset == NULL)
- exit (EXIT_FAILURE);
-
- /* Open the hive to parse it. */
- h = hivex_open (tmpfile, 0);
- err = errno;
- close (fd);
- unlink (tmpfile);
-
- if (h == NULL) {
- errno = err;
- perror ("hivex_open");
+ root = guestfs_hivex_root (g);
+ if (root == -1)
exit (EXIT_FAILURE);
- }
-
- root = hivex_root (h);
- if (root == 0) {
- perror ("hivex_root");
- exit (EXIT_FAILURE);
- }
/* Get ControlSetXXX\Services\Tcpip\Parameters\Interfaces. */
+ controlset = guestfs_inspect_get_windows_current_control_set (g, root_fs);
+ if (controlset == NULL)
+ exit (EXIT_FAILURE);
const char *path[] = { controlset, "Services", "Tcpip", "Parameters",
"Interfaces" };
node = root;
- errno = 0;
- for (i = 0; node != 0 && i < sizeof path / sizeof path[0]; ++i)
- node = hivex_node_get_child (h, node, path[i]);
+ for (i = 0; node > 0 && i < sizeof path / sizeof path[0]; ++i)
+ node = guestfs_hivex_node_get_child (g, node, path[i]);
+
+ if (node == -1)
+ exit (EXIT_FAILURE);
if (node == 0) {
- if (errno != 0)
- perror ("hivex_node_get_child");
- else
- fprintf (stderr, "virt-dhcp-address: HKLM\\System\\%s\\Services\\Tcpip\\Parameters\\Interfaces not found.", controlset);
+ fprintf (stderr, "virt-dhcp-address: HKLM\\System\\%s\\Services\\Tcpip\\Parameters\\Interfaces not found.", controlset);
exit (EXIT_FAILURE);
}
+ free (controlset);
+
/* Look for a node under here which has a "DhcpIPAddress" entry in it. */
- nodes = hivex_node_children (h, node);
- if (nodes == NULL) {
- perror ("hivex_node_children");
+ nodes = guestfs_hivex_node_children (g, node);
+ if (nodes == NULL)
exit (EXIT_FAILURE);
- }
value = 0;
- for (i = 0; value == 0 && nodes[i] != 0; ++i) {
- errno = 0;
- value = hivex_node_get_value (h, nodes[i], "DhcpIPAddress");
- if (value == 0 && errno != 0) {
- perror ("hivex_node_get_value");
+ for (i = 0; value == 0 && i < nodes->len; ++i) {
+ value = guestfs_hivex_node_get_value (g, nodes->val[i].hivex_node_h,
+ "DhcpIPAddress");
+ if (value == -1)
exit (EXIT_FAILURE);
- }
}
if (value == 0) {
@@ -287,21 +264,21 @@ print_dhcp_address_windows (guestfs_h *g, char *root_fs)
exit (EXIT_FAILURE);
}
- /* Get the string and use hivex's auto-conversion to convert it to UTF-8
- * for output.
+ guestfs_free_hivex_node_list (nodes);
+
+ /* Get the string and use libguestfs's auto-conversion to convert it
+ * to UTF-8 for output.
*/
- p = hivex_value_string (h, value);
- if (!p) {
- perror ("hivex_value_string");
+ p = guestfs_hivex_value_utf8 (g, value);
+ if (!p)
exit (EXIT_FAILURE);
- }
printf ("%s\n", p);
- /* Close the hive handle. */
- hivex_close (h);
+ free (p);
- free (controlset);
+ /* Close the hive handle. */
+ guestfs_hivex_close (g);
}
static int