diff -r 48b0adfe3059 -r 4866573c6944 librazor/rpm.c
--- a/librazor/rpm.c	Thu Jan 22 22:54:45 2009 +0000
+++ b/librazor/rpm.c	Thu Feb 05 22:43:29 2009 +0000
@@ -742,9 +742,12 @@
 {
 #if HAVE_CHROOT
 	int pid, status, fd[2];
-#else
+#if HAVE_LUA
+	int save_root, retval;
+#endif
+#else	/* HAVE_CHROOT */
 	FILE *fp;
-#endif
+#endif	/* HAVE_CHROOT */
 	const char *script = NULL, *program = NULL;
 
 	program = razor_rpm_get_indirect(installer->rpm, program_tag, NULL);
@@ -764,6 +767,50 @@
 #else
 		program = "/bin/sh";
 #endif
+	} else if (!strcmp(program, "<lua>")) {
+#if HAVE_LUA
+		const char *name;
+
+		switch(script_tag) {
+			case RPMTAG_PREIN:
+				name = "%pre";
+				break;
+			case RPMTAG_POSTIN:
+				name = "%post";
+				break;
+			case RPMTAG_PREUN:
+				name = "%preun";
+				break;
+			case RPMTAG_POSTUN:
+				name = "%postun";
+				break;
+			default:
+				name = "script";
+				break;
+		}
+#if HAVE_CHROOT
+		if (geteuid() == 0) {
+			save_root = open("/", O_RDONLY, 0);
+			if (chroot(installer->root) < 0) {
+				fprintf(stderr, "failed to chroot to %s: %s\n",
+					installer->root, strerror(errno));
+				exit(-1);
+			}
+			retval = run_lua_script(NULL, name, script, -1);
+			fchdir(save_root);
+			close(save_root);
+			chroot(".");
+		} else
+#endif
+		{
+			retval = run_lua_script(installer->root, name, script,
+						-1);
+		}
+		return retval;
+#else	/* HAVE_LUA */
+		fprintf(stderr, "lua not available to run script\n");
+		return -1;
+#endif	/* HAVE_LUA */
 	}
 
 #if HAVE_CHROOT