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libdm: add mangling support for dm_task_set_newuuid

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This commit is contained in:
Peter Rajnoha 2012-10-10 17:01:13 +02:00
parent a621795a3c
commit 7e71ecbaf6
1 changed files with 21 additions and 0 deletions
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21
libdm/ioctl/libdm-iface.c
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@ -736,11 +736,32 @@ int dm_task_set_add_node(struct dm_task *dmt, dm_add_node_t add_node)
int dm_task_set_newuuid(struct dm_task *dmt, const char *newuuid)
{
dm_string_mangling_t mangling_mode = dm_get_name_mangling_mode();
char mangled_uuid[DM_UUID_LEN];
int r = 0;
if (strlen(newuuid) >= DM_UUID_LEN) {
log_error("Uuid \"%s\" too long", newuuid);
return 0;
}
if (!check_multiple_mangled_string_allowed(newuuid, "new UUID", mangling_mode))
return_0;
if (mangling_mode != DM_STRING_MANGLING_NONE &&
(r = mangle_string(newuuid, "new UUID", strlen(newuuid), mangled_uuid,
sizeof(mangled_uuid), mangling_mode)) < 0) {
log_error("Failed to mangle new device UUID \"%s\"", newuuid);
return 0;
}
if (r) {
log_debug("New device uuid mangled [%s]: %s --> %s",
mangling_mode == DM_STRING_MANGLING_AUTO ? "auto" : "hex",
newuuid, mangled_uuid);
newuuid = mangled_uuid;
}
if (!(dmt->newname = dm_strdup(newuuid))) {
log_error("dm_task_set_newuuid: strdup(%s) failed", newuuid);
return 0;