1 files changed, 125 insertions, 0 deletions
diff --git a/mmss/config.cpp b/mmss/config.cpp
new file mode 100644
index 0000000..0be95fb
--- /dev/null
+++ b/mmss/config.cpp
@@ -0,0 +1,125 @@
+/*
+  Copyright (c) 2013, Matthias Schiffer <mschiffer@universe-factory.net>
+  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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
+*/
+
+
+#include "mmss.hpp"
+#include <config.ll.hpp>
+#include <config.yy.hpp>
+
+#include <libgen.h>
+
+
+void mmss_config_add_network(mmss_t *mmss, mmss_config_t *conf, const char *name) {
+	mmss_logf(mmss, LOG_NOTICE, "Adding network `%s'", name);
+
+	mmss_network_t *net = new mmss_network_t;
+
+	net->name = strdup(name);
+	net->mtu = 1500;
+
+	net->next = conf->networks;
+	conf->networks = net;
+}
+
+bool mmss_read_config(mmss_t *mmss, mmss_config_t *conf, const char *filename) {
+	bool ret = true;
+	char *oldcwd = get_current_dir_name();
+	char *filename2 = NULL;
+	char *dir = NULL;
+	FILE *file;
+	yyscan_t scanner;
+	mmss_config_pstate *ps;
+	mmss_string_stack_t *strings = NULL;
+	int token;
+	YYSTYPE token_val;
+	YYLTYPE loc = {1, 0, 1, 0};
+	int parse_ret;
+
+
+	mmss_config_yylex_init(&scanner);
+	ps = mmss_config_pstate_new();
+
+	if (!filename) {
+		file = stdin;
+	}
+	else {
+		file = fopen(filename, "r");
+		if (!file) {
+			mmss_logf(mmss, LOG_ERR, "can't open config file `%s': %s", filename, strerror(errno));
+			ret = false;
+			goto end_free;
+		}
+	}
+
+	mmss_config_yyset_in(file, scanner);
+
+	if (filename) {
+		filename2 = strdup(filename);
+		dir = dirname(filename2);
+
+		if (chdir(dir)) {
+			mmss_logf(mmss, LOG_ERR, "change from directory `%s' to `%s' failed", oldcwd, dir);
+			ret = false;
+			goto end_free;
+		}
+	}
+
+	do {
+		token = mmss_config_yylex(&token_val, &loc, scanner);
+
+		if (token < 0) {
+			mmss_logf(mmss, LOG_ERR, "config error: %s at %s:%i:%i", token_val.error, filename, loc.first_line, loc.first_column);
+			ret = false;
+			goto end_free;
+		}
+
+		if (token == TOK_STRING) {
+			token_val.str->next = strings;
+			strings = token_val.str;
+		}
+
+		parse_ret = mmss_config_push_parse(ps, token, &token_val, &loc, mmss, conf, filename);
+	} while (parse_ret == YYPUSH_MORE);
+
+	if (parse_ret)
+		ret = false;
+
+ end_free:
+	mmss_string_stack_free(strings);
+
+	mmss_config_pstate_delete(ps);
+	mmss_config_yylex_destroy(scanner);
+
+	if(chdir(oldcwd))
+		mmss_logf(mmss, LOG_ERR, "can't chdir to `%s': %s", oldcwd, strerror(errno));
+
+	free(filename2);
+	free(oldcwd);
+
+	if (filename && file)
+		fclose(file);
+
+	return ret;
+}