build@students1804:~/NetworksLab2018AU/messenger/linux_server/build$ cmake ../
-- The C compiler identification is GNU 7.3.0
-- The CXX compiler identification is GNU 7.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/build/NetworksLab2018AU/messenger/linux_server/build
build@students1804:~/NetworksLab2018AU/messenger/linux_server/build$ make
Scanning dependencies of target tcp
[ 25%] Building CXX object CMakeFiles/tcp.dir/main.cpp.o
[ 50%] Building CXX object CMakeFiles/tcp.dir/server.cpp.o
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp: In constructor ‘elegram::server::server(uint16_t)’:
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp:7:5: error: ‘bzero’ was not declared in this scope
     bzero((char *) &_serv_addr, sizeof(_serv_addr));
     ^~~~~
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp: In member function ‘void elegram::server::_client(int)’:
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp:55:47: error: ‘strlen’ was not declared in this scope
         int size_write_msg = static_cast<int>(strlen(login) + 1 + strlen(msg) + 1 + 4 * sizeof(int));
                                               ^~~~~~
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp:55:47: note: suggested alternative: ‘mbrlen’
         int size_write_msg = static_cast<int>(strlen(login) + 1 + strlen(msg) + 1 + 4 * sizeof(int));
                                               ^~~~~~
                                               mbrlen
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp:81:9: error: ‘strcpy’ was not declared in this scope
         strcpy(msg_send + offset, login);
         ^~~~~~
/home/build/NetworksLab2018AU/messenger/linux_server/server.cpp:81:9: note: suggested alternative: ‘stop’
         strcpy(msg_send + offset, login);
         ^~~~~~
         stop
CMakeFiles/tcp.dir/build.make:86: recipe for target 'CMakeFiles/tcp.dir/server.cpp.o' failed
make[2]: *** [CMakeFiles/tcp.dir/server.cpp.o] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/tcp.dir/all' failed
make[1]: *** [CMakeFiles/tcp.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2