Fix the "network" command in tinc shell.

diff --git a/src/names.c b/src/names.c
index a640fe4..6c518f2 100644 (file)
--- a/src/names.c
+++ b/src/names.c
@@ -137,4 +137,12 @@ void free_names(void) {
        free(logfilename);
        free(confbase);
        free(confdir);
+
+       identname = NULL;
+       netname = NULL;
+       unixsocketname = NULL;
+       pidfilename = NULL;
+       logfilename = NULL;
+       confbase = NULL;
+       confdir = NULL;
 }

diff --git a/src/tincctl.c b/src/tincctl.c
index 9687ba4..4231cce 100644 (file)
--- a/src/tincctl.c
+++ b/src/tincctl.c
@@ -2284,26 +2284,29 @@ static int cmd_exchange_all(int argc, char *argv[]) {
 }
 
 static int switch_network(char *name) {
+       if(strcmp(name, ".")) {
+               if(!check_netname(name, false)) {
+                       fprintf(stderr, "Invalid character in netname!\n");
+                       return 1;
+               }
+
+               if(!check_netname(name, true))
+                       fprintf(stderr, "Warning: unsafe character in netname!\n");
+       }
+
        if(fd >= 0) {
                close(fd);
                fd = -1;
        }
 
-       free(confbase);
-       confbase = NULL;
-       free(pidfilename);
-       pidfilename = NULL;
-       free(logfilename);
-       logfilename = NULL;
-       free(unixsocketname);
-       unixsocketname = NULL;
+       free_names();
+       netname = strcmp(name, ".") ? xstrdup(name) : NULL;
+       make_names(false);
+
        free(tinc_conf);
        free(hosts_dir);
        free(prompt);
 
-       free(netname);
-       netname = strcmp(name, ".") ? xstrdup(name) : NULL;
-
         xasprintf(&tinc_conf, "%s" SLASH "tinc.conf", confbase);
         xasprintf(&hosts_dir, "%s" SLASH "hosts", confbase);
        xasprintf(&prompt, "%s> ", identname);