progs/vp: Ensure null-terminated byte string.

diff --git a/progs/vp/vp-tris.c b/progs/vp/vp-tris.c
index 29cd027b00c2ef70138d0759362b764d0b7161f1..09236c296f7e5f5ec7fbc0e78a961d965f3d560e 100644 (file)
--- a/progs/vp/vp-tris.c
+++ b/progs/vp/vp-tris.c
@@ -96,7 +96,8 @@ static void Init( void )
       exit(1);
    }
 
-   sz = (GLuint) fread(buf, 1, sizeof(buf), f);
+   sz = (GLuint) fread(buf, 1, sizeof(buf) - 1, f);
+   buf[sizeof(buf) - 1] = '\0';
    if (!feof(f)) {
       fprintf(stderr, "file too long\n");
       fclose(f);