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diff --git a/src/common/ceph_argparse.h b/src/common/ceph_argparse.h
new file mode 100644
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+++ b/src/common/ceph_argparse.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2008-2011 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef CEPH_ARGPARSE_H
+#define CEPH_ARGPARSE_H
+
+/*
+ * Ceph argument parsing library
+ *
+ * We probably should eventually replace this with something standard like popt.
+ * Until we do that, though, this file is the place for argv parsing
+ * stuff to live.
+ */
+
+#include <string>
+#include <vector>
+
+#include "common/entity_name.h"
+
+/////////////////////// Types ///////////////////////
+class CephInitParameters
+{
+public:
+  explicit CephInitParameters(uint32_t module_type_);
+  std::list<std::string> get_conf_files() const;
+
+  uint32_t module_type;
+  EntityName name;
+  bool no_config_file = false;
+};
+
+/////////////////////// Functions ///////////////////////
+extern void string_to_vec(std::vector<std::string>& args, std::string argstr);
+extern void clear_g_str_vec();
+extern void env_to_vec(std::vector<const char*>& args, const char *name=NULL);
+extern void argv_to_vec(int argc, const char **argv,
+                 std::vector<const char*>& args);
+extern void vec_to_argv(const char *argv0, std::vector<const char*>& args,
+			int *argc, const char ***argv);
+
+extern bool parse_ip_port_vec(const char *s, std::vector<entity_addrvec_t>& vec,
+			      int type=0);
+bool ceph_argparse_double_dash(std::vector<const char*> &args,
+	std::vector<const char*>::iterator &i);
+bool ceph_argparse_flag(std::vector<const char*> &args,
+	std::vector<const char*>::iterator &i, ...);
+bool ceph_argparse_witharg(std::vector<const char*> &args,
+	std::vector<const char*>::iterator &i, std::string *ret,
+	std::ostream &oss, ...);
+bool ceph_argparse_witharg(std::vector<const char*> &args,
+	std::vector<const char*>::iterator &i, std::string *ret, ...);
+template<class T>
+bool ceph_argparse_witharg(std::vector<const char*> &args,
+	std::vector<const char*>::iterator &i, T *ret,
+	std::ostream &oss, ...);
+bool ceph_argparse_binary_flag(std::vector<const char*> &args,
+	std::vector<const char*>::iterator &i, int *ret,
+	std::ostream *oss, ...);
+extern CephInitParameters ceph_argparse_early_args
+	    (std::vector<const char*>& args, uint32_t module_type,
+	     std::string *cluster, std::string *conf_file_list);
+extern bool ceph_argparse_need_usage(const std::vector<const char*>& args);
+extern void generic_server_usage();
+extern void generic_client_usage();
+
+#endif