Added argument parser source files

2 files changed, 112 insertions, 0 deletions

diff --git a/server/parser/argparser.c b/server/parser/argparser.c
new file mode 100644
index 0000000..c932fa9
--- /dev/null
+++ b/server/parser/argparser.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * This application is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; version 2.
+ *
+ * This application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+/**
+ * @file   argparser.c
+ * @author David Sommerseth <davids@redhat.com>
+ * @date   Thu Oct 22 13:58:46 2009
+ *
+ * @brief  Generic argument parser
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <eurephia_values.h>
+#include <eurephia_nullsafe.h>
+
+/**
+ * Parses program arguments and puts the recognised arguments into an eurephiaVALUES struct.
+ *
+ * @param argc   argument counter
+ * @param argv   argument string table
+ *
+ * @return Returns a pointer to an eurephiaVALUES struct.  On failure, the program halts.
+ */
+eurephiaVALUES *parse_arguments(int argc, char **argv) {
+	eurephiaVALUES *args = NULL;
+	int optidx, c, logset = 0;
+	static struct option long_opts[] = {
+		{"--log", 1, 0, 'l'},
+		{"--log-level", 1, 0, 'L'},
+		{"--config", 1, 0, 'f'},
+		{"--daemon", 0, 0, 'd'},
+		{0, 0, 0, 0}
+	};
+
+	args = eCreate_value_space(NULL, 21);
+	eAdd_value(args, "daemon", "0");
+	eAdd_value(args, "configfile", "/etc/rteval.conf");
+
+	while( 1 ) {
+		optidx = 0;
+		c = getopt_long(argc, argv, "l:L:f:d", long_opts, &optidx);
+		if( c == -1 ) {
+			break;
+		}
+
+		switch( c ) {
+		case 'l':
+			eUpdate_value(args, "log", optarg, 1);
+			logset = 1;
+			break;
+		case 'L':
+			eUpdate_value(args, "loglevel", optarg, 1);
+			break;
+		case 'f':
+			eUpdate_value(args, "configfile", optarg, 0);
+			break;
+		case 'd':
+			eUpdate_value(args, "daemon", "1", 0);
+			break;
+		}
+	}
+
+	// If logging is not configured, and it is not run as a daemon
+	// -> log to stderr:
+	if( (eGet_value(args, "log") == NULL)
+	    && (atoi_nullsafe(eGet_value(args, "daemon")) == 0) ) {
+		eAdd_value(args, "log", "stderr:");
+	}
+
+	return args;
+}
diff --git a/server/parser/argparser.h b/server/parser/argparser.h
new file mode 100644
index 0000000..53214e1
--- /dev/null
+++ b/server/parser/argparser.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * This application is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; version 2.
+ *
+ * This application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+/**
+ * @file   argparser.h
+ * @author David Sommerseth <davids@redhat.com>
+ * @date   Thu Oct 22 13:58:46 2009
+ *
+ * @brief  Generic argument parser
+ *
+ */
+
+#ifndef _RTEVAL_ARGPARSER_h
+#define _RTEVAL_ARGPARSER_h
+
+eurephiaVALUES *parse_arguments(int argc, char **argv);
+
+#endif