dmeventd_thin: init command

When dmeventd configured command does not start with 'lvm ' prefix,
it's going to be an 'external' command.
In this case we split command by spaces to argv strings.

1 files changed, 16 insertions, 0 deletions

diff --git a/daemons/dmeventd/plugins/thin/dmeventd_thin.c b/daemons/dmeventd/plugins/thin/dmeventd_thin.c
index 74b010ad7..86a21157c 100644
--- a/daemons/dmeventd/plugins/thin/dmeventd_thin.c
+++ b/daemons/dmeventd/plugins/thin/dmeventd_thin.c
@@ -549,6 +549,8 @@ int register_device(const char *device,
 		    void **user)
 {
 	struct dso_state *state;
+	int maxcmd;
+	char *str;
 
 	if (!dmeventd_lvm2_init_with_pool("thin_pool_state", state))
 		goto_bad;
@@ -561,6 +563,20 @@ int register_device(const char *device,
 		goto_bad;
 	}
 
+	if (strncmp(state->cmd_str, "lvm ", 4)) {
+		maxcmd = 2; /* space for last NULL element */
+		for (str = state->cmd_str; *str; str++)
+			if (*str == ' ')
+				maxcmd++;
+		if (!(str = dm_pool_strdup(state->mem, state->cmd_str)) ||
+		    !(state->argv = dm_pool_zalloc(state->mem, maxcmd * sizeof(char *)))) {
+			log_error("Failed to allocate memory for command.");
+			goto bad;
+		}
+
+		dm_split_words(str, maxcmd - 1, 0, state->argv);
+	}
+
 	state->metadata_percent_check = CHECK_MINIMUM;
 	state->data_percent_check = CHECK_MINIMUM;
 	state->pid = -1;