Add Subnet checking to tinc cli

[tinc] / src / tincctl.c

diff --git a/src/tincctl.c b/src/tincctl.c
index 08f3018..0beebc2 100644 (file)
--- a/src/tincctl.c
+++ b/src/tincctl.c
@@ -40,6 +40,7 @@
 #include "tincctl.h"
 #include "top.h"
 #include "version.h"
+#include "subnet.h"
 
 #ifndef MSG_NOSIGNAL
 #define MSG_NOSIGNAL 0
@@ -1886,6 +1887,19 @@ static int cmd_config(int argc, char *argv[]) {
                found = true;
                variable = (char *)variables[i].name;
 
+               if (!strcasecmp(variable, "Subnet")) {
+                       subnet_t s = {0};
+
+                       if(!str2net(&s, value)) {
+                               fprintf(stderr, "Malformed subnet definition %s\n", value);
+                       }
+
+                       if(!subnetcheck(s)) {
+                               fprintf(stderr, "Network address and prefix length do not match: %s\n", value);
+                               return 1;
+                       }
+               }
+
                /* Discourage use of obsolete variables. */
 
                if(variables[i].type & VAR_OBSOLETE && action >= 0) {