--- a/CMakeLists.txt	Thu Jul 27 01:27:55 2017 +0300
+++ b/CMakeLists.txt	Thu Jul 27 01:31:30 2017 +0300
@@ -55,6 +55,7 @@
 )
 
 add_executable(galleryd
+	config.c
 	daemon.c
 	version.c
 )

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config.c	Thu Jul 27 01:31:30 2017 +0300
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2017 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <jeffpc/sexpr.h>
+#include <jeffpc/io.h>
+
+#include "config.h"
+
+/*
+ * The actual config
+ */
+struct config config;
+
+static struct str exampledotcom = STR_STATIC_INITIALIZER("example.com");
+
+static void config_load_u64(struct val *lv, const char *vname,
+			    uint64_t *ret, uint64_t def)
+{
+	uint64_t tmp;
+	bool found;
+
+	tmp = sexpr_alist_lookup_int(lv, vname, &found);
+
+	if (found)
+		*ret = tmp;
+	else
+		*ret = def;
+}
+
+static void config_load_url(struct val *lv, const char *vname,
+			    struct str **ret)
+{
+	struct str *s;
+
+	s = sexpr_alist_lookup_str(lv, vname);
+
+	if (s)
+		*ret = s;
+	else
+		*ret = str_getref(&exampledotcom);
+}
+
+static void config_load_str(struct val *lv, const char *vname,
+			    struct str **ret, const char *def)
+{
+	struct str *s;
+
+	s = sexpr_alist_lookup_str(lv, vname);
+
+	if (s)
+		*ret = s;
+	else if (def)
+		*ret = STR_DUP(def);
+	else
+		*ret = NULL;
+}
+
+static void config_load_scgi_port(struct val *lv)
+{
+	uint64_t tmp;
+
+	config_load_u64(lv, CONFIG_SCGI_PORT, &tmp, DEFAULT_SCGI_PORT);
+
+	if (tmp < 65536)
+		config.scgi_port = tmp;
+	else
+		config.scgi_port = DEFAULT_SCGI_PORT;
+}
+
+static void config_load_scgi_threads(struct val *lv)
+{
+	config_load_u64(lv, CONFIG_SCGI_THREADS, &config.scgi_threads,
+			DEFAULT_SCGI_THREADS);
+
+	/* we need at least one thread */
+	if (!config.scgi_threads)
+		config.scgi_threads = DEFAULT_SCGI_THREADS;
+}
+
+int config_load(const char *fname)
+{
+	struct val *lv;
+	char *raw;
+
+	srand(time(NULL));
+
+	if (fname) {
+		raw = read_file(fname);
+		if (IS_ERR(raw))
+			return PTR_ERR(raw);
+
+		lv = sexpr_parse_cstr(raw);
+
+		free(raw);
+
+		if (IS_ERR(lv))
+			return PTR_ERR(lv);
+	} else {
+		lv = NULL;
+	}
+
+	config_load_scgi_port(lv);
+	config_load_scgi_threads(lv);
+	config_load_str(lv, CONFIG_DATA_DIR, &config.data_dir, DEFAULT_DATA_DIR);
+	config_load_str(lv, CONFIG_WEB_DIR, &config.web_dir, DEFAULT_WEB_DIR);
+	config_load_url(lv, CONFIG_BASE_URL, &config.base_url);
+
+	val_putref(lv);
+
+	cmn_err(CE_DEBUG, "config.scgi_port = %u", config.scgi_port);
+	cmn_err(CE_DEBUG, "config.scgi_threads = %"PRIu64, config.scgi_threads);
+	cmn_err(CE_DEBUG, "config.data_dir = %s", str_cstr(config.data_dir));
+	cmn_err(CE_DEBUG, "config.web_dir = %s", str_cstr(config.web_dir));
+	cmn_err(CE_DEBUG, "config.base_url = %s", str_cstr(config.base_url));
+
+	return 0;
+}