disallow '\0' in C strings

It's a bug in user code if we try to open files with '\0' in it.

1 files changed, 2 insertions, 2 deletions

diff --git a/mahoro.c b/mahoro.c
index 49e3e45..3fd1e61 100644
--- a/mahoro.c
+++ b/mahoro.c
@@ -46,7 +46,7 @@ mahoro_initialize(argc, argv, self)
         switch(rb_scan_args(argc, argv, "02", &vflags, &vpath)) {
                 case 2:
                         if(!NIL_P(vpath)) {
-                                path = StringValuePtr(vpath);
+                                path = StringValueCStr(vpath);
                         }
                         /* fallthrough */
                 case 1:
@@ -77,7 +77,7 @@ mahoro_file(self, path)
         const char *msg;
         magic_t cookie = ((struct MagicCookie *) DATA_PTR(self))->cookie;
 
-        if(!(msg = magic_file(cookie, StringValuePtr(path)))) {
+        if(!(msg = magic_file(cookie, StringValueCStr(path)))) {
                 rb_raise(eMahoroError, "failed lookup: %s", magic_error(cookie));
         }