refactor: remove (void) from dm_strncpy usage

Start to use dm_strncpy() as unchecked version within source tree.

daemons/cmirrord/cluster.c

@@ -1634,7 +1634,7 @@ int create_cluster_cpg(char *uuid, uint64_t luid)
 
 	size = ((strlen(uuid) + 1) > CPG_MAX_NAME_LENGTH) ?
 		CPG_MAX_NAME_LENGTH : (strlen(uuid) + 1);
-	(void) dm_strncpy(new->name.value, uuid, size);
+	dm_strncpy(new->name.value, uuid, size);
 	new->name.length = (uint32_t)size;
 	new->luid = luid;
 

lib/activate/activate.c

@@ -502,7 +502,7 @@ int driver_version(char *version, size_t size)
 	    !dm_driver_version(_vsn, sizeof(_vsn)))
 		return_0;
 
-	(void) dm_strncpy(version, _vsn, size);
+	dm_strncpy(version, _vsn, size);
 
 	return 1;
 }

lib/activate/dev_manager.c

@@ -871,7 +871,7 @@ static int _info(struct cmd_context *cmd,
 			if (strcmp(suffix_position + 1, suffix))
 				continue;
 
-			(void) dm_strncpy(old_style_dlid, dlid, sizeof(old_style_dlid));
+			dm_strncpy(old_style_dlid, dlid, sizeof(old_style_dlid));
 			if (!_info_run(old_style_dlid, dminfo, read_ahead, seg_status,
 				       name_check, with_open_count, with_read_ahead,
 				       0, 0))
@@ -2315,7 +2315,7 @@ static int _check_holder(struct dev_manager *dm, struct dm_tree *dtree,
 		if (!memcmp(uuid, &lv->vg->id, ID_LEN) &&
 		    !dm_tree_find_node_by_uuid(dtree, uuid)) {
 			/* trims any UUID suffix (i.e. -cow) */
-			(void) dm_strncpy((char*)&id, uuid, 2 * sizeof(struct id) + 1);
+			dm_strncpy((char*)&id, uuid, 2 * sizeof(struct id) + 1);
 
 			/* If UUID is not yet in dtree, look for matching LV */
 			if (!(lv_det = find_lv_in_vg_by_lvid(lv->vg, &id))) {

lib/commands/toolcontext.c

@@ -252,7 +252,7 @@ static void _get_sysfs_dir(struct cmd_context *cmd, char *buf, size_t buf_size)
 		return;
 	}
 
-	(void) dm_strncpy(buf, sys_mnt, buf_size);
+	dm_strncpy(buf, sys_mnt, buf_size);
 }
 
 static uint32_t _parse_debug_fields(struct cmd_context *cmd, int cfg, const char *cfgname)

lib/device/dev-cache.c

@@ -283,8 +283,8 @@ static int _compare_paths(const char *path0, const char *path1)
 	if (slash1 < slash0)
 		return 1;
 
-	(void) dm_strncpy(p0, path0, sizeof(p0));
+	dm_strncpy(p0, path0, sizeof(p0));
-	(void) dm_strncpy(p1, path1, sizeof(p1));
+	dm_strncpy(p1, path1, sizeof(p1));
 	s0 = p0 + 1;
 	s1 = p1 + 1;
 
@@ -1810,7 +1810,7 @@ static int _setup_devices_file_dmeventd(struct cmd_context *cmd)
 		return 0;
 
 	cmd->enable_devices_file = 1;
-	(void) dm_strncpy(cmd->devices_file_path, path, sizeof(cmd->devices_file_path));
+	dm_strncpy(cmd->devices_file_path, path, sizeof(cmd->devices_file_path));
 	return 1;
 }
 

lib/device/device_id.c

@@ -68,7 +68,7 @@ char *strdup_pvid(char *pvid)
 	char *buf;
 	if (!(buf = zalloc(ID_LEN + 1)))
 		return_NULL;
-	(void)dm_strncpy(buf, pvid, ID_LEN + 1);
+	dm_strncpy(buf, pvid, ID_LEN + 1);
 	return buf;
 }
 
@@ -1244,7 +1244,7 @@ int device_ids_read(struct cmd_context *cmd)
 
 			/* Save original for lvmdevices output. */
 			if (!strcmp(cmd->name, "lvmdevices"))
-				(void)dm_strncpy(devices_file_hostname_orig, check_id, PATH_MAX);
+				dm_strncpy(devices_file_hostname_orig, check_id, sizeof(devices_file_hostname_orig));
 
 			if (!cmd->device_ids_check_hostname)
 				continue;
@@ -1264,7 +1264,7 @@ int device_ids_read(struct cmd_context *cmd)
 
 			/* Save original for lvmdevices output. */
 			if (!strcmp(cmd->name, "lvmdevices"))
-				(void)dm_strncpy(devices_file_product_uuid_orig, check_id, PATH_MAX);
+				dm_strncpy(devices_file_product_uuid_orig, check_id, sizeof(devices_file_product_uuid_orig));
 
 			if (!cmd->device_ids_check_product_uuid)
 				continue;
@@ -1487,7 +1487,7 @@ static void devices_file_backup(struct cmd_context *cmd, char *fc, char *fb, tim
 		    (de_date < low_date) ||
 		    (de_date == low_date && de_time < low_time) ||
 		    (de_date == low_date && de_time == low_time && de_count < low_count)) {
-			(void)dm_strncpy(low_name, de->d_name, sizeof(low_name));
+			dm_strncpy(low_name, de->d_name, sizeof(low_name));
 			low_date = de_date;
 			low_time = de_time;
 			low_count = de_count;

lib/device/online.c

@@ -181,9 +181,9 @@ int get_pvs_online(struct dm_list *pvs_online, const char *vgname)
 		if (file_major || file_minor)
 			po->devno = MKDEV(file_major, file_minor);
 		if (file_vgname[0])
-			(void)dm_strncpy(po->vgname, file_vgname, sizeof(po->vgname));
+			dm_strncpy(po->vgname, file_vgname, sizeof(po->vgname));
 		if (file_devname[0])
-			(void)dm_strncpy(po->devname, file_devname, sizeof(po->devname));
+			dm_strncpy(po->devname, file_devname, sizeof(po->devname));
 
 		log_debug("Found PV online %s for VG %s %s", path, vgname, file_devname);
 		dm_list_add(pvs_online, &po->list);

lib/format_text/archive.c

@@ -79,7 +79,7 @@ static int _split_vg(const char *filename, char *vgname, size_t vgsize,
 	if (vg_len + 1 > vgsize)
 		return 0;
 
-	(void) dm_strncpy(vgname, filename, vg_len + 1);
+	dm_strncpy(vgname, filename, vg_len + 1);
 
 	return 1;
 }

lib/format_text/format-text.c

@@ -1305,7 +1305,7 @@ static int _vg_write_file(struct format_instance *fid __attribute__((unused)),
 	if (slash == 0)
 		strcpy(temp_dir, ".");
 	else if (slash - tc->path_edit < PATH_MAX) {
-		(void) dm_strncpy(temp_dir, tc->path_edit,
+		dm_strncpy(temp_dir, tc->path_edit,
 			   (size_t) (slash - tc->path_edit + 1));
 	} else {
 		log_error("Text format failed to determine directory.");

lib/label/hints.c

@@ -886,7 +886,7 @@ static int _read_hint_file(struct cmd_context *cmd, struct dm_list *hints, int *
 		if (!_dev_in_hint_hash(cmd, dev))
 			continue;
 
-		(void) dm_strncpy(devpath, dev_name(dev), sizeof(devpath));
+		dm_strncpy(devpath, dev_name(dev), sizeof(devpath));
 		calc_hash = calc_crc(calc_hash, (const uint8_t *)devpath, strlen(devpath));
 		calc_count++;
 	}
@@ -1077,7 +1077,7 @@ int write_hint_file(struct cmd_context *cmd, int newhints)
 		 * detect when the devices on the system change, which
 		 * invalidates the existing hints.
 		 */
-		(void) dm_strncpy(devpath, dev_name(dev), sizeof(devpath));
+		dm_strncpy(devpath, dev_name(dev), sizeof(devpath));
 		hash = calc_crc(hash, (const uint8_t *)devpath, strlen(devpath));
 		count++;
 

lib/log/log.c

@@ -391,7 +391,7 @@ void init_msg_prefix(const char *prefix)
 {
 	if (prefix)
 		/* Cut away too long prefix */
-		(void) dm_strncpy(_msg_prefix, prefix, sizeof(_msg_prefix));
+		dm_strncpy(_msg_prefix, prefix, sizeof(_msg_prefix));
 }
 
 void init_indent(int indent)

lib/metadata/vdo_manip.c

@@ -681,7 +681,7 @@ static int _get_memory_info(uint64_t *total_mb, uint64_t *available_mb)
 		if ((unsigned)(++e - line) > sizeof(namebuf))
 			continue; // something too long
 
-		(void)dm_strncpy((char*)findme.name, line, e - line);
+		dm_strncpy((char*)findme.name, line, e - line);
 
 		found = bsearch(&findme, mt, DM_ARRAY_SIZE(mt), sizeof(mem_table_t),
 				_compare_mem_table_s);

lib/misc/lvm-globals.c

@@ -164,7 +164,7 @@ void init_log_command(int log_name, int log_pid)
 		return;
 
 	else if (log_name && !log_pid)
-		(void) dm_strncpy(_log_command_info, _cmd_name, sizeof(_log_command_info));
+		dm_strncpy(_log_command_info, _cmd_name, sizeof(_log_command_info));
 
 	else if (!log_name && log_pid)
 		(void) dm_snprintf(_log_command_info, sizeof(_log_command_info), "%d", getpid());
@@ -212,7 +212,7 @@ void init_pv_min_size(uint64_t sectors)
 
 void set_cmd_name(const char *cmd)
 {
-	(void) dm_strncpy(_cmd_name, cmd, sizeof(_cmd_name));
+	dm_strncpy(_cmd_name, cmd, sizeof(_cmd_name));
 }
 
 const char *get_cmd_name(void)
@@ -222,7 +222,7 @@ const char *get_cmd_name(void)
 
 void set_sysfs_dir_path(const char *path)
 {
-	(void) dm_strncpy(_sysfs_dir_path, path, sizeof(_sysfs_dir_path));
+	dm_strncpy(_sysfs_dir_path, path, sizeof(_sysfs_dir_path));
 }
 
 const char *log_command_info(void)

lib/misc/sharedlib.c

@@ -37,6 +37,6 @@ void get_shared_library_path(struct cmd_context *cmd, const char *libname,
 	     !(cmd->lib_dir = find_config_tree_str(cmd, global_library_dir_CFG, NULL))) ||
 	    (dm_snprintf(path, path_len, "%s/%s", cmd->lib_dir,
 			 libname) == -1) || stat(path, &info) == -1) {
-		(void) dm_strncpy(path, libname, path_len);
+		dm_strncpy(path, libname, path_len);
 	}
 }

lib/uuid/uuid.c

@@ -127,7 +127,7 @@ int id_write_format(const struct id *id, char *buffer, size_t size)
 	assert(ID_LEN == 32);
 
 	if (id->uuid[0] == '#') {
-		(void) dm_strncpy(buffer, (char*)id->uuid, size);
+		dm_strncpy(buffer, (char*)id->uuid, size);
 		return 1;
 	}
 

tools/command.c

@@ -507,7 +507,7 @@ static uint64_t _lv_to_bits(struct command *cmd, char *name)
 	int argc;
 	int i;
 
-	(void) dm_strncpy(buf, name, LVTYPE_LEN);
+	dm_strncpy(buf, name, sizeof(buf));
 
 	_split_line(buf, &argc, argv, '_');
 
@@ -853,7 +853,7 @@ static char *_get_oo_line(const char *str)
 	char str2[OO_NAME_LEN];
 	int i;
 
-	(void) dm_strncpy(str2, str, sizeof(str2));
+	dm_strncpy(str2, str, sizeof(str2));
 	if ((end = strchr(str2, ':')))
 		*end = '\0';
 	if ((end = strchr(str2, ',')))

tools/lvconvert.c

@@ -1170,7 +1170,7 @@ static int _raid_split_image_conversion(struct logical_volume *lv)
 
 	if (lv_is_raid_image(lv) &&
 	    (s = strstr(lv->name, "_rimage_"))) {
-		(void) dm_strncpy(raidlv_name, lv->name, s - lv->name);
+		dm_strncpy(raidlv_name, lv->name, s - lv->name);
 
 		if (!(tmp_lv = find_lv(lv->vg, raidlv_name))) {
 			log_error("Failed to find RaidLV of RAID subvolume %s.",

tools/vgimportclone.c

@@ -408,7 +408,7 @@ int vgimportclone(struct cmd_context *cmd, int argc, char **argv)
 			goto out;
 		}
 		if (strcmp(vgname, vp.old_vgname)) {
-			(void) dm_strncpy(tmp_vgname, base_vgname, NAME_LEN);
+			dm_strncpy(tmp_vgname, base_vgname, sizeof(tmp_vgname));
 			vgname_count = 0;
 		} else {
 			/* Needed when basename matches old name, and PV is not a duplicate