1 files changed, 61 insertions, 0 deletions
diff --git a/usr.sbin/pkg_install/lib/pkgng.c b/usr.sbin/pkg_install/lib/pkgng.c
new file mode 100644
index 0000000..3aba383
--- /dev/null
+++ b/usr.sbin/pkg_install/lib/pkgng.c
@@ -0,0 +1,61 @@
+/*-
+ * Copyright (c) 2012 Eitan Adler
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+
+#include "lib.h"
+#include <err.h>
+
+static const char message[] = "You appear to be using the newer pkg(1) tool on \
+this system for package management, rather than the legacy package \
+management tools (pkg_*).  The legacy tools should no longer be used on \
+this system.";
+
+void warnpkgng(void)
+{
+	char pkgngpath[MAXPATHLEN + 1];
+	char *pkgngdir;
+	char *dontwarn;
+	int rc;
+
+	dontwarn = getenv("PKG_OLD_NOWARN");
+	if (dontwarn != NULL)
+		return;
+	pkgngdir = getenv("PKG_DBDIR");
+	if (pkgngdir == NULL)
+		pkgngdir = "/var/db/pkg";
+
+	rc = snprintf(pkgngpath, sizeof(pkgngpath), "%s/local.sqlite", pkgngdir);
+	if ((size_t)rc >= sizeof(pkgngpath)) {
+		warnx("path too long: %s/local.sqlite", pkgngdir);
+		return;
+	}
+
+	if (access(pkgngpath, F_OK) == 0)
+		warnx(message);
+}