add doc

goghcrow · goghcrow · commit bdd633a6f0d1 · 2017-12-11T17:27:57.000+08:00
diff --git a/mysql_sniff.h b/mysql_sniff.h
@@ -695,6 +695,9 @@ mysql_get_cap_val(uint16_t val, char *def) {
 
 static inline char *
 mysql_get_ext_cap_val(uint16_t val, char *def) {
+    if (val == 0) {
+        return strdup("empty");
+    }
     return val_flag_to_str(mysql_ext_caps_table, val, def);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -695,6 +695,9 @@ mysql_get_cap_val(uint16_t val, char *def) {`
`695`	`695`
`696`	`696`	`static inline char *`
`697`	`697`	`mysql_get_ext_cap_val(uint16_t val, char *def) {`
	`698`	`+ if (val == 0) {`
	`699`	`+ return strdup("empty");`
	`700`	`+ }`
`698`	`701`	`return val_flag_to_str(mysql_ext_caps_table, val, def);`
`699`	`702`	`}`
`700`	`703`