Fix possible unterminated string

Signed-off-by: Vaclav Dolezal <vdolezal@redhat.com>
Signed-off-by: Amadeusz Sławiński <amade@asmblr.net

1 files changed, 7 insertions, 1 deletions

diff --git a/src/pty.c b/src/pty.c
index 1c0660e..eba3bb0 100644
--- a/src/pty.c
+++ b/src/pty.c
@@ -279,7 +279,13 @@ char **ttyn;
       return -1;
     }
   signal(SIGCHLD, sigcld);
-  strncpy(TtyName, m, sizeof(TtyName));
+  if (strlen(m) < sizeof(TtyName))
+    strcpy(TtyName, m);
+  else
+    {
+      close(f);
+      return -1;
+    }
   initmaster(f);
   *ttyn = TtyName;
   return f;