From e18b362dd2b30d7a1a41b074920a182d5f4f99c1 Mon Sep 17 00:00:00 2001
From: mbays <mbays@sdf.org>
Date: Sun, 7 Mar 2021 00:00:00 +0000
Subject: [PATCH] implement !restart, !nolink

---
 main.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 26daa9e..f30b419 100644
--- a/main.c
+++ b/main.c
@@ -31,6 +31,7 @@ typedef struct Child {
     pid_t pid;
     int in;
     int out;
+    bool nolink;
 } Child;
 
 typedef struct State {
@@ -214,9 +215,28 @@ void respond(void *object, const Request_Info *request_info, int socket)
             put("\r\n");
             put("# gemrepl meta commands\r\n");
             put("=> ?!help !help: This help\r\n");
+            put("=> ?!restart !restart: kill process and start again\r\n");
+            put("=> ?!nolink !nolink: suppress input link\r\n");
+            put("=> ?!showlink !showlink: show input link\r\n");
             put("=> ?!? !?: Prompt for input\r\n");
             put("=> ?!! !!: Literal '!'\r\n");
             return;
+        } else if (0 == strncmp(q, "restart", strlen(q))) {
+            kill(child->pid, SIGKILL);
+        } else if (0 == strncmp(q, "nolink", strlen(q))) {
+            // TODO: might be better to have this be a permanent option 
+            // attached to the cert rather than the child.
+            child->nolink = true;
+            put("20 text/gemini\r\n");
+            put("Input links disabled.\r\n");
+            put("=> ?!showlink re-enable\r\n");
+            return;
+        } else if (0 == strncmp(q, "showlink", strlen(q))) {
+            child->nolink = false;
+            put("20 text/gemini\r\n");
+            put("Input links enabled.\r\n");
+            put("=> ?!? Input command\r\n");
+            return;
         } else if (*q != '!') {
             put("40 Unknown gemrepl meta-command (use '!!' for a literal '!')\r\n");
             return;
@@ -224,7 +244,7 @@ void respond(void *object, const Request_Info *request_info, int socket)
     }
 
     put("20 text/gemini\r\n");
-    put("=> ?!? Input command\r\n");
+    if (!child->nolink) put("=> ?!? Input command\r\n");
 
     kill(child->pid, SIGCONT);
 
-- 
2.11.4.GIT