Add quit command.

configuration.c

@@ -876,6 +876,11 @@ parse_config_line(int c, gnc_t gnc, void *closure, int *action_return)
                          if_conf, default_interface_conf);
             free(if_conf);
         }
+    } else if(strcmp(token, "quit") == 0) {
+        c = skip_eol(c, gnc, closure);
+        if(c < -1 || !action_return)
+            goto fail;
+        *action_return = CONFIG_QUIT;
     } else {
         c = parse_option(c, gnc, closure, token);
         if(c < -1)

configuration.h

@@ -23,6 +23,7 @@ THE SOFTWARE.
 /* Values returned by parse_config_from_string. */
 
 #define CONFIG_DONE 0
+#define CONFIG_QUIT 1
 
 struct filter_result {
     unsigned int add_metric; /* allow = 0, deny = INF, metric = <0..INF> */

local.c

@@ -107,12 +107,19 @@ local_read(struct local_socket *s)
         return 1;
 
     rc = parse_config_from_string(s->buf, eol + 1 - s->buf);
-    if(rc < 0) {
+    switch(rc) {
+    case CONFIG_DONE:
+        break;
+    case CONFIG_QUIT:
+        shutdown(s->fd, 1);
+        break;
+    default: {
         char *buf = "error\n";
         rc = write_timeout(s->fd, buf, 6);
         if(rc < 0)
             goto fail;
     }
+    }
 
     if(s->n > eol + 1 - s->buf) {
         memmove(s->buf, eol + 1, s->n - (eol + 1 - s->buf));