Small refactoring so we can re-use this function in later commits.
Signed-off-by: Ilya Maximets <[email protected]>
---
ovsdb/ovsdb-server.c | 45 +++++++++++++++++++++++++++++++-------------
1 file changed, 32 insertions(+), 13 deletions(-)
diff --git a/ovsdb/ovsdb-server.c b/ovsdb/ovsdb-server.c
index 7f65cadfe..7e95b3813 100644
--- a/ovsdb/ovsdb-server.c
+++ b/ovsdb/ovsdb-server.c
@@ -316,6 +316,34 @@ main_loop(struct server_config *config,
free(remotes_error);
}
+/* Parsing the relay in format 'relay:DB_NAME:<list of remotes>'.
+ * On success, returns 'true', 'name' is set to DB_NAME, 'remotes' to
+ * '<list of remotes>'. Caller is responsible of freeing 'name' and
+ * 'remotes'. On failure, returns 'false'. */
+static bool
+parse_relay_args(const char *arg, char **name, char **remote)
+{
+ const char *relay_prefix = "relay:";
+ const int relay_prefix_len = strlen(relay_prefix);
+ bool is_relay;
+
+ is_relay = !strncmp(arg, relay_prefix, relay_prefix_len);
+ if (!is_relay) {
+ return false;
+ }
+
+ *remote = strchr(arg + relay_prefix_len, ':');
+
+ if (!*remote || (*remote)[0] == '\0') {
+ *remote = NULL;
+ return false;
+ }
+ arg += relay_prefix_len;
+ *name = xmemdup0(arg, *remote - arg);
+ *remote = xstrdup(*remote + 1);
+ return true;
+}
+
int
main(int argc, char *argv[])
{
@@ -732,15 +760,13 @@ add_db(struct server_config *config, struct db *db)
static struct ovsdb_error * OVS_WARN_UNUSED_RESULT
open_db(struct server_config *config, const char *filename)
{
- const char *relay_prefix = "relay:";
- const char *relay_remotes = NULL;
- const int relay_prefix_len = strlen(relay_prefix);
struct ovsdb_storage *storage;
+ char *relay_remotes = NULL;
struct ovsdb_error *error;
bool is_relay;
char *name;
- is_relay = !strncmp(filename, relay_prefix, relay_prefix_len);
+ is_relay = parse_relay_args(filename, &name, &relay_remotes);
if (!is_relay) {
/* If we know that the file is already open, return a good error
* message. Otherwise, if the file is open, we'll fail later on with
@@ -755,15 +781,7 @@ open_db(struct server_config *config, const char *filename)
}
name = xstrdup(filename);
} else {
- /* Parsing the relay in format 'relay:DB_NAME:<list of remotes>'*/
- relay_remotes = strchr(filename + relay_prefix_len, ':');
-
- if (!relay_remotes || relay_remotes[0] == '\0') {
- return ovsdb_error(NULL, "%s: invalid syntax", filename);
- }
- name = xmemdup0(filename, relay_remotes - filename);
- storage = ovsdb_storage_create_unbacked(name + relay_prefix_len);
- relay_remotes++; /* Skip the ':'. */
+ storage = ovsdb_storage_create_unbacked(name);
}
struct ovsdb_schema *schema;
@@ -813,6 +831,7 @@ open_db(struct server_config *config, const char *filename)
if (is_relay) {
ovsdb_relay_add_db(db->db, relay_remotes, update_schema, config,
*config->relay_source_probe_interval);
+ free(relay_remotes);
}
return NULL;
}
--
2.43.0
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