* MDF [mqtt_public] a safety checker for nng_Strdup

JaylinYu · JaylinYu · commit 5e52ef417967 · 2026-01-14T12:21:38.000+08:00
Signed-off-by: Jaylin &lt;jaylin@emqx.io&gt;
diff --git a/src/supplemental/mqtt/mqtt_public.c b/src/supplemental/mqtt/mqtt_public.c
@@ -1126,7 +1126,7 @@ nng_mqtt_set_sqlite_conf(nng_mqtt_sqlite_option *opt, void *config,
     const char *bridge_name, uint8_t pro_ver, void *conf_sqlite)
 {
 	opt->bridge          = config;
-	opt->bridge_name     = nng_strdup(bridge_name);
+	opt->bridge_name     = bridge_name ? nng_strdup(bridge_name) : NULL;
 	opt->proto_ver       = pro_ver;
 	opt->sqlite_conf     = conf_sqlite;
 }

Original file line number	Diff line number	Diff line change
`@@ -1126,7 +1126,7 @@ nng_mqtt_set_sqlite_conf(nng_mqtt_sqlite_option opt, void config,`
`1126`	`1126`	`const char bridge_name, uint8_t pro_ver, void conf_sqlite)`
`1127`	`1127`	`{`
`1128`	`1128`	`opt->bridge = config;`
`1129`		`- opt->bridge_name = nng_strdup(bridge_name);`
	`1129`	`+ opt->bridge_name = bridge_name ? nng_strdup(bridge_name) : NULL;`
`1130`	`1130`	`opt->proto_ver = pro_ver;`
`1131`	`1131`	`opt->sqlite_conf = conf_sqlite;`
`1132`	`1132`	`}`