core/listener: Prevent buffer overflow found by covscan

buffer_size_warning: Calling strncpy with a maximum size argument of 108 bytes on destination array "addr.sun_path" of size 108 bytes might leave the destination string unterminated.

diff --git a/libfreerdp/core/listener.c b/libfreerdp/core/listener.c
index 6598d9e..e0ba239 100644 (file)
--- a/libfreerdp/core/listener.c
+++ b/libfreerdp/core/listener.c
@@ -160,7 +160,7 @@ static BOOL freerdp_listener_open_local(freerdp_listener* instance, const char*
 #ifndef _WIN32
        int status;
        int sockfd;
-       struct sockaddr_un addr;
+       struct sockaddr_un addr = { 0 };
        rdpListener* listener = (rdpListener*) instance->listener;
        HANDLE hevent;
 
@@ -180,7 +180,7 @@ static BOOL freerdp_listener_open_local(freerdp_listener* instance, const char*
 
        fcntl(sockfd, F_SETFL, O_NONBLOCK);
        addr.sun_family = AF_UNIX;
-       strncpy(addr.sun_path, path, sizeof(addr.sun_path));
+       strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
        unlink(path);
        status = _bind(sockfd, (struct sockaddr*) &addr, sizeof(addr));