2 files changed, 66 insertions, 0 deletions
diff --git a/bin/confgen/unix/Makefile.in b/bin/confgen/unix/Makefile.in
new file mode 100644
index 0000000..cad563e
--- /dev/null
+++ b/bin/confgen/unix/Makefile.in
@@ -0,0 +1,30 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# SPDX-License-Identifier: MPL-2.0
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0.  If a copy of the MPL was not distributed with this
+# file, you can obtain one at https://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir =	@srcdir@
+VPATH =		@srcdir@
+top_srcdir =	@top_srcdir@
+
+@BIND9_MAKE_INCLUDES@
+
+CINCLUDES =	-I${srcdir}/include -I${srcdir}/../include \
+		${DNS_INCLUDES} ${ISC_INCLUDES}
+
+CDEFINES =
+CWARNINGS =
+
+OBJS =		os.@O@
+
+SRCS =		os.c
+
+TARGETS =	${OBJS}
+
+@BIND9_MAKE_RULES@
diff --git a/bin/confgen/unix/os.c b/bin/confgen/unix/os.c
new file mode 100644
index 0000000..445d64b
--- /dev/null
+++ b/bin/confgen/unix/os.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <confgen/os.h>
+
+int
+set_user(FILE *fd, const char *user) {
+	struct passwd *pw;
+
+	pw = getpwnam(user);
+	if (pw == NULL) {
+		errno = EINVAL;
+		return (-1);
+	}
+	return (fchown(fileno(fd), pw->pw_uid, -1));
+}