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Fall back to /var/lib/dbus/machine-id when required

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Fixes https://github.com/fwupd/fwupd/issues/1365
This commit is contained in:
Richard Hughes 2019-09-18 08:26:14 +01:00
parent cee877dfc4
commit a45994cb4a
1 changed files with 21 additions and 2 deletions
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23
libfwupd/fwupd-common.c
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@ -313,12 +313,31 @@ fwupd_build_user_agent (const gchar *package_name, const gchar *package_version)
gchar *
fwupd_build_machine_id (const gchar *salt, GError **error)
{
const gchar *fn = NULL;
g_autofree gchar *buf = NULL;
g_auto(GStrv) fns = g_new0 (gchar *, 5);
g_autoptr(GChecksum) csum = NULL;
gsize sz = 0;
/* this has to exist */
if (!g_file_get_contents ("/etc/machine-id", &buf, &sz, error))
/* one of these has to exist */
fns[0] = g_build_filename (SYSCONFDIR, "machine-id", NULL);
fns[1] = g_build_filename (LOCALSTATEDIR, "lib", "dbus", "machine-id", NULL);
fns[2] = g_strdup ("/etc/machine-id");
fns[3] = g_strdup ("/var/lib/dbus/machine-id");
for (guint i = 0; fns[i] != NULL; i++) {
if (g_file_test (fns[i], G_FILE_TEST_EXISTS)) {
fn = fns[i];
break;
}
}
if (fn == NULL) {
g_set_error_literal (error,
FWUPD_ERROR,
FWUPD_ERROR_READ,
"The machine-id is not present");
return NULL;
}
if (!g_file_get_contents (fn, &buf, &sz, error))
return NULL;
if (sz == 0) {
g_set_error_literal (error,