Splint 3.1.2 --- 09 Dec 2007

tcp-socket.c:23: Include file <sys/types.h> matches the name of a POSIX
    library, but the POSIX library is not being used.  Consider using +posixlib
    or +posixstrictlib to select the POSIX library, or -warnposix to suppress
    this message.
  Header name matches a POSIX header, but the POSIX library is not selected.
  (Use -warnposixheaders to inhibit warning)
tcp-socket.c:24: Include file <sys/socket.h> matches the name of a POSIX
    library, but the POSIX library is not being used.  Consider using +posixlib
    or +posixstrictlib to select the POSIX library, or -warnposix to suppress
    this message.
tcp-socket.c:25: Include file <netdb.h> matches the name of a POSIX library,
    but the POSIX library is not being used.  Consider using +posixlib or
    +posixstrictlib to select the POSIX library, or -warnposix to suppress this
    message.
tcp-socket.c:26: Include file <unistd.h> matches the name of a POSIX library,
    but the POSIX library is not being used.  Consider using +posixlib or
    +posixstrictlib to select the POSIX library, or -warnposix to suppress this
    message.
tcp-socket.c:27: Include file <fcntl.h> matches the name of a POSIX library,
    but the POSIX library is not being used.  Consider using +posixlib or
    +posixstrictlib to select the POSIX library, or -warnposix to suppress this
    message.