Introduced SGCP library.

diff --git a/stglibs/sgcp.lib/Makefile b/stglibs/sgcp.lib/Makefile
new file mode 100644 (file)
index 0000000..01ec337
--- /dev/null
+++ b/stglibs/sgcp.lib/Makefile
@@ -0,0 +1,16 @@
+include ../../Makefile.conf
+
+LIB_NAME = stgsgcp
+
+SRCS = proto.cpp \
+       transport.cpp \
+       unix.cpp \
+       udp.cpp \
+       tcp.cpp \
+       crypto.cpp
+
+INCS = sgcp_proto.h \
+       sgcp_types.h \
+       sgcp_transport.h
+
+include ../Makefile.in

diff --git a/stglibs/sgcp.lib/crypto.cpp b/stglibs/sgcp.lib/crypto.cpp
new file mode 100644 (file)
index 0000000..2b2bb8f
--- /dev/null
+++ b/stglibs/sgcp.lib/crypto.cpp
@@ -0,0 +1,30 @@
+#include "crypto.h"
+
+using STG::SGCP::CryptoProto;
+
+CryptoProto::CryptoProto(const std::string& key, TransportProto* underlying)
+    : m_underlying(underlying)
+{
+}
+
+CryptoProto::~CryptoProto()
+{
+    delete m_underlying;
+}
+
+void CryptoProto::connect(const std::string& address, uint16_t port)
+{
+    m_underlying->connect(address, port);
+}
+
+ssize_t CryptoProto::write(const void* buf, size_t size)
+{
+    // TODO: to implement
+    return m_underlying->write(buf, size);
+}
+
+ssize_t CryptoProto::read(void* buf, size_t size)
+{
+    // TODO: to implement
+    return m_underlying->read(buf, size);
+}

diff --git a/stglibs/sgcp.lib/crypto.h b/stglibs/sgcp.lib/crypto.h
new file mode 100644 (file)
index 0000000..5f720d0
--- /dev/null
+++ b/stglibs/sgcp.lib/crypto.h
@@ -0,0 +1,54 @@
+#ifndef __STG_SGCP_CRYPTO_H__
+#define __STG_SGCP_CRYPTO_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "stg/sgcp_transport.h"
+
+#include "stg/os_int.h"
+
+#include <string>
+
+#include <unistd.h> // ssize_t
+
+namespace STG
+{
+namespace SGCP
+{
+
+class CryptoProto : public TransportProto
+{
+    public:
+        CryptoProto(const std::string& key, TransportProto* underlying);
+        virtual ~CryptoProto();
+
+        virtual void connect(const std::string& address, uint16_t port);
+        virtual ssize_t write(const void* buf, size_t size);
+        virtual ssize_t read(void* buf, size_t size);
+
+    private:
+        TransportProto* m_underlying;
+};
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/include/stg/sgcp_proto.h b/stglibs/sgcp.lib/include/stg/sgcp_proto.h
new file mode 100644 (file)
index 0000000..3cc35b1
--- /dev/null
+++ b/stglibs/sgcp.lib/include/stg/sgcp_proto.h
@@ -0,0 +1,108 @@
+#ifndef __STG_SGCP_PROTO_H__
+#define __STG_SGCP_PROTO_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "sgcp_types.h" // TransportType
+#include "sgcp_utils.h" // hton/ntoh
+
+#include "stg/os_int.h"
+
+#include <string>
+#include <vector>
+#include <stdexcept>
+
+namespace STG
+{
+namespace SGCP
+{
+
+class TransportProto;
+
+class Proto
+{
+    public:
+        struct Error : public std::runtime_error
+        {
+            Error(const std::string& mesage);
+            Error();
+        };
+
+        Proto(TransportType transport, const std::string& key);
+        ~Proto();
+
+        void connect(const std::string& address, uint16_t port);
+
+        void writeAllBuf(const void* buf, size_t size);
+        void readAllBuf(void* buf, size_t size);
+
+        template <typename T>
+        void writeAll(const T& value);
+
+        template <typename T>
+        T readAll();
+
+    private:
+        TransportProto* m_transport;
+};
+
+template <>
+inline
+void Proto::writeAll<uint64_t>(const uint64_t& value)
+{
+    uint64_t temp = hton(value);
+    writeAllBuf(&temp, sizeof(temp));
+}
+
+template <>
+inline
+void Proto::writeAll<std::string>(const std::string& value)
+{
+    uint64_t size = hton(value.size());
+    writeAllBuf(&size, sizeof(size));
+    writeAllBuf(value.c_str(), value.size());
+}
+
+template <>
+inline
+uint64_t Proto::readAll<uint64_t>()
+{
+    uint64_t temp = 0;
+    readAllBuf(&temp, sizeof(temp));
+    return ntoh(temp);
+}
+
+template <>
+inline
+std::string Proto::readAll<std::string>()
+{
+    uint64_t size = 0;
+    readAllBuf(&size, sizeof(size));
+    size = ntoh(size);
+    std::vector<char> res(size);
+    readAllBuf(res.data(), res.size());
+    return res.data();
+}
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/include/stg/sgcp_transport.h b/stglibs/sgcp.lib/include/stg/sgcp_transport.h
new file mode 100644 (file)
index 0000000..88a7d0c
--- /dev/null
+++ b/stglibs/sgcp.lib/include/stg/sgcp_transport.h
@@ -0,0 +1,58 @@
+#ifndef __STG_SGCP_TRANSPORT_H__
+#define __STG_SGCP_TRANSPORT_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "stg/sgcp_types.h"
+
+#include "stg/os_int.h"
+
+#include <string>
+#include <stdexcept>
+
+#include <unistd.h> // ssize_t
+
+namespace STG
+{
+namespace SGCP
+{
+
+class TransportProto
+{
+    public:
+        struct Error : public std::runtime_error {
+            Error(const std::string& message) : runtime_error(message) {}
+        };
+
+        static TransportProto* create(TransportType transport, const std::string& key);
+        static TransportProto* create(TransportType transport);
+
+        virtual ~TransportProto() {}
+
+        virtual void connect(const std::string& address, uint16_t port) = 0;
+        virtual ssize_t write(const void* buf, size_t size) = 0;
+        virtual ssize_t read(void* buf, size_t size) = 0;
+};
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/include/stg/sgcp_types.h b/stglibs/sgcp.lib/include/stg/sgcp_types.h
new file mode 100644 (file)
index 0000000..4792007
--- /dev/null
+++ b/stglibs/sgcp.lib/include/stg/sgcp_types.h
@@ -0,0 +1,39 @@
+#ifndef __STG_SGCP_TYPES_H__
+#define __STG_SGCP_TYPES_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+namespace STG
+{
+namespace SGCP
+{
+
+enum TransportType
+{
+    UNIX,
+    UDP,
+    TCP
+};
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/include/stg/sgcp_utils.h b/stglibs/sgcp.lib/include/stg/sgcp_utils.h
new file mode 100644 (file)
index 0000000..7e5004c
--- /dev/null
+++ b/stglibs/sgcp.lib/include/stg/sgcp_utils.h
@@ -0,0 +1,67 @@
+#ifndef __STG_SGCP_UTILS_H__
+#define __STG_SGCP_UTILS_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "stg/os_int.h"
+
+#include <string>
+#include <vector>
+
+#include <arpa/inet.h> // hton*
+#include <netinet/in.h> // in_addr
+
+namespace STG
+{
+namespace SGCP
+{
+
+template <typename T> inline T hton(T value) { return value; }
+template <typename T> inline T ntoh(T value) { return hton(value); }
+
+template <> inline uint16_t hton(uint16_t value) { return htons(value); }
+template <> inline int16_t hton(int16_t value) { return htons(value); }
+
+template <> inline uint32_t hton(uint32_t value) { return htonl(value); }
+template <> inline int32_t hton(int32_t value) { return htonl(value); }
+
+inline
+uint64_t htonll(uint64_t value)
+{
+#ifdef ARCH_LE
+    const uint32_t high_part = htonl(static_cast<uint32_t>(value >> 32));
+    const uint32_t low_part = htonl(static_cast<uint32_t>(value & 0xFFFFFFFFLL));
+
+    return (static_cast<uint64_t>(low_part) << 32) | high_part;
+#else
+    return value;
+#endif
+}
+
+template <> inline uint64_t hton(uint64_t value) { return htonll(value); }
+template <> inline int64_t hton(int64_t value) { return htonll(value); }
+
+std::vector<in_addr> resolve(const std::string& address);
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/proto.cpp b/stglibs/sgcp.lib/proto.cpp
new file mode 100644 (file)
index 0000000..96b6285
--- /dev/null
+++ b/stglibs/sgcp.lib/proto.cpp
@@ -0,0 +1,63 @@
+#include "stg/sgcp_proto.h"
+
+#include "stg/sgcp_transport.h"
+
+#include <cstring>
+#include <cerrno>
+
+using STG::SGCP::Proto;
+
+Proto::Error::Error(const std::string& message)
+    : runtime_error(message)
+{}
+
+Proto::Error::Error()
+    : runtime_error(strerror(errno))
+{}
+
+Proto::Proto(TransportType transport, const std::string& key)
+    : m_transport(TransportProto::create(transport, key))
+{
+}
+
+Proto::~Proto()
+{
+    delete m_transport;
+}
+
+void Proto::connect(const std::string& address, uint16_t port)
+{
+    try {
+        m_transport->connect(address, port);
+    } catch (const TransportProto::Error& ex) {
+        throw Error(ex.what());
+    }
+}
+
+void Proto::writeAllBuf(const void* buf, size_t size)
+{
+    const char* pos = static_cast<const char*>(buf);
+    while (size > 0) {
+        ssize_t res = m_transport->write(pos, size);
+        if (res < 0)
+            throw Error();
+        if (res == 0)
+            return;
+        size -= res;
+        pos += res;
+    }
+}
+
+void Proto::readAllBuf(void* buf, size_t size)
+{
+    char* pos = static_cast<char*>(buf);
+    while (size > 0) {
+        ssize_t res = m_transport->read(pos, size);
+        if (res < 0)
+            throw Error();
+        if (res == 0)
+            return;
+        size -= res;
+        pos += res;
+    }
+}

diff --git a/stglibs/sgcp.lib/tcp.cpp b/stglibs/sgcp.lib/tcp.cpp
new file mode 100644 (file)
index 0000000..414d5ec
--- /dev/null
+++ b/stglibs/sgcp.lib/tcp.cpp
@@ -0,0 +1,52 @@
+#include "tcp.h"
+
+#include "stg/sgcp_utils.h"
+
+#include <cerrno>
+#include <cstring>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+using STG::SGCP::TCPProto;
+
+TCPProto::TCPProto()
+    : m_sock(socket(AF_INET, SOCK_STREAM, 0))
+{
+}
+
+TCPProto::~TCPProto()
+{
+    close(m_sock);
+}
+
+void TCPProto::connect(const std::string& address, uint16_t port)
+{
+    std::vector<in_addr> addrs = resolve(address);
+
+    for (size_t i = 0; i < addrs.size(); ++i) {
+        sockaddr_in addr;
+        addr.sin_family = AF_INET;
+        addr.sin_port = hton(port);
+        addr.sin_addr = addrs[i];
+
+        if (::connect(m_sock, reinterpret_cast<const sockaddr*>(&addr), sizeof(addr)) == 0)
+            return;
+
+        close(m_sock);
+        m_sock = socket(AF_INET, SOCK_STREAM, 0);
+    }
+    throw Error("No more addresses to connect to.");
+}
+
+ssize_t TCPProto::write(const void* buf, size_t size)
+{
+    return ::write(m_sock, buf, size);
+}
+
+ssize_t TCPProto::read(void* buf, size_t size)
+{
+    return ::read(m_sock, buf, size);
+}

diff --git a/stglibs/sgcp.lib/tcp.h b/stglibs/sgcp.lib/tcp.h
new file mode 100644 (file)
index 0000000..8afa0b5
--- /dev/null
+++ b/stglibs/sgcp.lib/tcp.h
@@ -0,0 +1,54 @@
+#ifndef __STG_SGCP_TCP_H__
+#define __STG_SGCP_TCP_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "stg/sgcp_transport.h"
+
+#include "stg/os_int.h"
+
+#include <string>
+
+#include <unistd.h> // ssize_t
+
+namespace STG
+{
+namespace SGCP
+{
+
+class TCPProto : public TransportProto
+{
+    public:
+        TCPProto();
+        virtual ~TCPProto();
+
+        virtual void connect(const std::string& address, uint16_t port);
+        virtual ssize_t write(const void* buf, size_t size);
+        virtual ssize_t read(void* buf, size_t size);
+
+    private:
+        int m_sock;
+};
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/transport.cpp b/stglibs/sgcp.lib/transport.cpp
new file mode 100644 (file)
index 0000000..1e94fa5
--- /dev/null
+++ b/stglibs/sgcp.lib/transport.cpp
@@ -0,0 +1,27 @@
+#include "stg/sgcp_transport.h"
+
+#include "crypto.h"
+#include "unix.h"
+#include "udp.h"
+#include "tcp.h"
+
+using STG::SGCP::TransportProto;
+
+TransportProto* TransportProto::create(TransportType transport, const std::string& key)
+{
+    TransportProto* underlying = create(transport);
+    if (key.empty())
+        return underlying;
+    else
+        return new CryptoProto(key, underlying);
+}
+
+TransportProto* TransportProto::create(TransportType transport)
+{
+    switch (transport) {
+        case UNIX: return new UnixProto;
+        case UDP: return new UDPProto;
+        case TCP: return new TCPProto;
+    };
+    return NULL;
+}

diff --git a/stglibs/sgcp.lib/udp.cpp b/stglibs/sgcp.lib/udp.cpp
new file mode 100644 (file)
index 0000000..ebbb98e
--- /dev/null
+++ b/stglibs/sgcp.lib/udp.cpp
@@ -0,0 +1,52 @@
+#include "udp.h"
+
+#include "stg/sgcp_utils.h"
+
+#include <cerrno>
+#include <cstring>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/udp.h>
+
+using STG::SGCP::UDPProto;
+
+UDPProto::UDPProto()
+    : m_sock(socket(AF_INET, SOCK_DGRAM, 0))
+{
+}
+
+UDPProto::~UDPProto()
+{
+    close(m_sock);
+}
+
+void UDPProto::connect(const std::string& address, uint16_t port)
+{
+    std::vector<in_addr> addrs = resolve(address);
+
+    for (size_t i = 0; i < addrs.size(); ++i) {
+        sockaddr_in addr;
+        addr.sin_family = AF_INET;
+        addr.sin_port = hton(port);
+        addr.sin_addr = addrs[i];
+
+        if (::connect(m_sock, reinterpret_cast<const sockaddr*>(&addr), sizeof(addr)) == 0)
+            return;
+
+        close(m_sock);
+        m_sock = socket(AF_INET, SOCK_DGRAM, 0);
+    }
+    throw Error("No more addresses to connect to.");
+}
+
+ssize_t UDPProto::write(const void* buf, size_t size)
+{
+    return ::write(m_sock, buf, size);
+}
+
+ssize_t UDPProto::read(void* buf, size_t size)
+{
+    return ::read(m_sock, buf, size);
+}

diff --git a/stglibs/sgcp.lib/udp.h b/stglibs/sgcp.lib/udp.h
new file mode 100644 (file)
index 0000000..b08978b
--- /dev/null
+++ b/stglibs/sgcp.lib/udp.h
@@ -0,0 +1,54 @@
+#ifndef __STG_SGCP_UDP_H__
+#define __STG_SGCP_UDP_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "stg/sgcp_transport.h"
+
+#include "stg/os_int.h"
+
+#include <string>
+
+#include <unistd.h> // ssize_t
+
+namespace STG
+{
+namespace SGCP
+{
+
+class UDPProto : public TransportProto
+{
+    public:
+        UDPProto();
+        virtual ~UDPProto();
+
+        virtual void connect(const std::string& address, uint16_t port);
+        virtual ssize_t write(const void* buf, size_t size);
+        virtual ssize_t read(void* buf, size_t size);
+
+    private:
+        int m_sock;
+};
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/unix.cpp b/stglibs/sgcp.lib/unix.cpp
new file mode 100644 (file)
index 0000000..15002e5
--- /dev/null
+++ b/stglibs/sgcp.lib/unix.cpp
@@ -0,0 +1,41 @@
+#include "unix.h"
+
+#include <cerrno>
+#include <cstring>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+using STG::SGCP::UnixProto;
+
+UnixProto::UnixProto()
+    : m_sock(socket(AF_UNIX, SOCK_STREAM, 0))
+{
+}
+
+UnixProto::~UnixProto()
+{
+    close(m_sock);
+}
+
+void UnixProto::connect(const std::string& address, uint16_t /*port*/)
+{
+    sockaddr_un addr;
+    addr.sun_family = AF_UNIX;
+    size_t max = sizeof(addr.sun_path);
+    strncpy(addr.sun_path, address.c_str(), max - 1);
+    addr.sun_path[max - 1] = 0; // Just in case.
+    if (::connect(m_sock, reinterpret_cast<const sockaddr*>(&addr), sizeof(addr)) < 0)
+        throw Error(strerror(errno));
+}
+
+ssize_t UnixProto::write(const void* buf, size_t size)
+{
+    return ::write(m_sock, buf, size);
+}
+
+ssize_t UnixProto::read(void* buf, size_t size)
+{
+    return ::read(m_sock, buf, size);
+}

diff --git a/stglibs/sgcp.lib/unix.h b/stglibs/sgcp.lib/unix.h
new file mode 100644 (file)
index 0000000..e5b645f
--- /dev/null
+++ b/stglibs/sgcp.lib/unix.h
@@ -0,0 +1,54 @@
+#ifndef __STG_SGCP_UNIX_H__
+#define __STG_SGCP_UNIX_H__
+
+/*
+ *    This program 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; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include "stg/sgcp_transport.h"
+
+#include "stg/os_int.h"
+
+#include <string>
+
+#include <unistd.h> // ssize_t
+
+namespace STG
+{
+namespace SGCP
+{
+
+class UnixProto : public TransportProto
+{
+    public:
+        UnixProto();
+        virtual ~UnixProto();
+
+        virtual void connect(const std::string& address, uint16_t /*port*/);
+        virtual ssize_t write(const void* buf, size_t size);
+        virtual ssize_t read(void* buf, size_t size);
+
+    private:
+        int m_sock;
+};
+
+} // namespace SGCP
+} // namespace STG
+
+#endif

diff --git a/stglibs/sgcp.lib/utils.cpp b/stglibs/sgcp.lib/utils.cpp
new file mode 100644 (file)
index 0000000..4c33e42
--- /dev/null
+++ b/stglibs/sgcp.lib/utils.cpp
@@ -0,0 +1,30 @@
+#include "stg/sgcp_utils.h"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+std::vector<in_addr> STG::SGCP::resolve(const std::string& address)
+{
+    addrinfo* result = NULL;
+
+    addrinfo hints;
+    memset(&hints, 0, sizeof(hints));
+
+    hints.ai_family = AF_INET;    /* Allow IPv4 */
+    hints.ai_socktype = 0; /* Datagram socket */
+    hints.ai_flags = 0;    /* For wildcard IP address */
+    hints.ai_protocol = 0;          /* Any protocol */
+    hints.ai_canonname = NULL;
+    hints.ai_addr = NULL;
+    hints.ai_next = NULL;
+
+    int res = getaddrinfo(address.c_str(), NULL, &hints, &result);
+    if (res != 0)
+        throw TransportProto::Error(gai_error(res));
+
+    std::vector as;
+    for (const addrinfo* p = result; p != NULL; p = p->next)
+        as.push_back(p->ai_addr.sin_addr);
+    return as;
+}