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278 lines
8.4 KiB
278 lines
8.4 KiB
/*
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* Copyright (C) 2002-2003 Fhg Fokus
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*
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* This file is part of SEMS, a free SIP media server.
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*
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* SEMS is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version. This program is released under
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* the GPL with the additional exemption that compiling, linking,
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* and/or using OpenSSL is allowed.
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*
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* For a license to use the SEMS software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* SEMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _AmUtils_h_
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#define _AmUtils_h_
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#include <stdio.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <regex.h>
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#include <sys/socket.h>
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#include <string>
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using std::string;
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#include <vector>
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#include <utility>
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//#define FIFO_PERM S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH
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#define PARAM_HDR "P-App-Param"
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#define APPNAME_HDR "P-App-Name"
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/** @file AmUtils.h */
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/**
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* Convert an int to a string.
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*/
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string int2str(int val);
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/**
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* Convert an unsigned int to a string.
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*/
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string int2str(unsigned int val);
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/**
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* Convert a long to a string.
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*/
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string long2str(long int val);
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/**
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* Convert a a byte to a string using hexdecimal representation.
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*/
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string char2hex(unsigned char val, bool lowercase = false);
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/**
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* Convert an unsigned int to a string using hexdecimal representation.
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*/
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string int2hex(unsigned int val, bool lowercase = false);
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/**
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* Convert an unsigned long to a string using hexdecimal representation.
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*/
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string long2hex(unsigned long val);
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/**
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* Convert a reversed hex string to uint.
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* @param str [in] string to convert.
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* @param result [out] result integer.
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* @return true if failed.
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*/
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bool reverse_hex2int(const string& str, unsigned int& result);
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/**
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* Convert a double to a string.
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*/
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string double2str(double val);
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/**
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* Convert a string to an uint.
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* @param str [in] string to convert.
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* @param result [out] result integer.
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* @return true if failed (!!!)
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*/
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bool str2i(const string& str, unsigned int& result);
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/**
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* Internal version of preceeding 'str2i' method.
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* @param str [in,out] gets incremented until sep char or error occurs
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* @param result [out] result of the function
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* @param sep [in] character seprating the number to convert and the next token
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* @return true if failed (!!!)
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*/
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bool str2i(char*& str, unsigned int& result, char sep = ' ');
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/**
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* Convert a string to an int.
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* @param str [in] string to convert.
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* @param result [out] result integer.
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* @return true on success (!!!)
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*/
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bool str2int(const string& str, int& result);
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/**
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* Internal version of preceeding 'str2int' method.
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* @param str [in,out] gets incremented until sep char or error occurs
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* @param result [out] result of the function
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* @param sep [in] character seprating the number to convert and the next token
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* @return true on success (!!!)
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*/
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bool str2int(char*& str, int& result, char sep = ' ');
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/**
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* Convert a string to a long int.
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* On many systems nowadays this could be the same as str2int.
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* @param str [in] string to convert.
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* @param result [out] result integer.
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* @return true if on success (!!!).
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*/
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bool str2long(const string& str, long& result);
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/**
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* Internal version of preceeding 'str2long' method.
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* @param str [in,out] gets incremented until sep char or error occurs
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* @param result [out] result of the function
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* @param sep [in] character seprating the number to convert and the next token
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* @return true on success
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*/
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bool str2long(char*& str, long& result, char sep = ' ');
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/**
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* Parse code/reason line.
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* Syntax: "code reason"
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*
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* @param lbuf line buffer to parse.
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* @param res_code_str char[4]; Syntax: xxxx whereby
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* each x is a between 0 and 9.
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* @param res_code where to store the resulting integer 'code'.
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* @param res_msg where to store the 'reason'.
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*/
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int parse_return_code(const char* lbuf,
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unsigned int& res_code, string& res_msg );
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/**
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* Tells if a file exists.
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* @param name file name.
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* @return true if file could be openned.
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*/
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bool file_exists(const string& name);
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/**
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* @return A file name extracted from the given full path file name.
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*/
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string filename_from_fullpath(const string& path);
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/**
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* @return A file extension extracted from the given full path file name.
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*/
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string file_extension(const string& path);
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/**
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* @return new path resulting from the concatanation of path,
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* suffix and eventually a slash between them
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*/
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string add2path(const string& path, int n_suffix, ...);
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struct in_addr;
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string get_addr_str(struct in_addr in);
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#ifdef SUPPORT_IPV6
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int inet_aton_v6(const char* name, struct sockaddr_storage* ss);
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void set_port_v6(struct sockaddr_storage* ss, short port);
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short get_port_v6(struct sockaddr_storage* ss);
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#endif
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/** \brief microseconds sleep using select */
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#define sleep_us(nusecs) \
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{ \
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struct timeval tval; \
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tval.tv_sec=nusecs/1000000; \
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tval.tv_usec=nusecs%1000000; \
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select(0, NULL, NULL, NULL, &tval ); \
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}
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/*
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* Computes the local address for a specific destination address.
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* This is done by opening a connected UDP socket and reading the
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* local address with getsockname().
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*/
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int get_local_addr_for_dest(sockaddr_storage* remote_ip, sockaddr_storage* local);
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int get_local_addr_for_dest(const string& remote_ip, string& local);
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/**
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* Converts an IP address contained in a sockaddr_storage into a string.
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*/
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int ip_addr_to_str(sockaddr_storage* ss, string& addr);
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string extract_tag(const string& addr);
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/** returns true if key is in s_list, a list of items delimited by list_delim
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*skips whitespaces, too */
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bool key_in_list(const string& s_list, const string& key, char list_delim = ',');
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/** return string with trailing spaces and everything after ; including ; itself removed */
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string strip_header_params(const string& hdr_string);
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/** get a header parameter value */
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string get_header_param(const string& hdr_string, const string& param_name);
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/** get the value of key @param name from the list param_hdr*/
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string get_header_keyvalue(const string& param_hdr, const string& name);
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/** get the value of key @param name from the list param_hdr, no comma separated values*/
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string get_header_keyvalue_single(const string& param_hdr, const string& name);
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/** get the value of key @param short_name or @param name or from the list param_hdr*/
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string get_header_keyvalue(const string& param_hdr, const string& short_name, const string& name);
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/** get the value of key @param name from P-Iptel-Param header in hdrs */
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string get_session_param(const string& hdrs, const string& name);
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/** support for thread-safe pseudo-random numbers - init function */
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void init_random();
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/** support for thread-safe pseudo-random numbers - make a random number function */
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unsigned int get_random();
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/** Explode string by a separator to a vector */
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std::vector<string> explode(const string& s, const string& delim, const bool keep_empty = false);
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/** remove chars in sepSet from beginning and end of str */
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inline std::string trim(std::string const& str,char const* sepSet)
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{
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std::string::size_type const first = str.find_first_not_of(sepSet);
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return ( first==std::string::npos ) ?
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std::string() : str.substr(first, str.find_last_not_of(sepSet)-first+1);
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}
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/** add a directory to an environement variable */
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void add_env_path(const char* name, const string& path);
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size_t skip_to_end_of_brackets(const string& s, size_t start);
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typedef std::vector<std::pair<regex_t, string> > RegexMappingVector;
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/** read a regex=>string mapping from file
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@return true on success
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*/
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bool read_regex_mapping(const string& fname, const char* sep,
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const char* dbg_type,
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RegexMappingVector& result);
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/** run a regex mapping - result is the first matching entry
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@return true if matched
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*/
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bool run_regex_mapping(const RegexMappingVector& mapping, const char* test_s,
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string& result);
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#endif
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// Local Variables:
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// mode:C++
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// End:
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