From: Shuanglei Tao <tsl0922@gmail.com>
Date: Tue, 21 Mar 2017 15:06:57 +0000 (+0800)
Subject: Add the missing null terminator to command string
X-Git-Url: http://git.prime8.dev/?a=commitdiff_plain;h=f5333551ed0b2718d8d90eb04119f75a83515e31;p=ttyd.git

Add the missing null terminator to command string
---

diff --git a/src/server.c b/src/server.c
index e7a7144..2856db0 100644
--- a/src/server.c
+++ b/src/server.c
@@ -107,14 +107,15 @@ tty_server_new(int argc, char **argv, int start) {
     }
     ts->argv[cmd_argc] = NULL;
 
-    ts->command = xmalloc(cmd_len);
+    ts->command = xmalloc(cmd_len + 1);
     char *ptr = ts->command;
     for (int i = 0; i < cmd_argc; i++) {
         ptr = stpcpy(ptr, ts->argv[i]);
         if (i != cmd_argc - 1) {
-            sprintf(ptr++, "%c", ' ');
+            *ptr++ = ' ';
         }
     }
+    *ptr = '\0'; // null terminator
 
     return ts;
 }