Add support for FreeBSD

.travis.yml

@@ -8,10 +8,9 @@ addons:
 env:
   - RUBYOPT=-rbundler/deprecate # workaround for bundler on rbx
 rvm:
+  - 2.6
+  - 2.5
   - 2.4
-  - 2.3
-  - 2.2
-  - 2.1
   - jruby-9.1.2.0
   - rbx-3
   - ruby-head

Gemfile

@@ -2,6 +2,6 @@
 source "http://rubygems.org"
 
 gemspec
-gem 'rspec', '~> 3.0.0'
+gem 'rspec', '~> 3'
 gem 'simplecov', require: false, group: :test
 gem "codeclimate-test-reporter", '~> 1.0', group: :test, require: false

README.md

@@ -2,7 +2,7 @@
 
 RubySerial is a simple Ruby gem for reading from and writing to serial ports.
 
-Unlike other Ruby serial port implementations, it supports all of the most popular Ruby implementations (MRI, JRuby, & Rubinius) on the most popular operating systems (OSX, Linux, & Windows). And it does not require any native compilation thanks to using RubyFFI [https://github.com/ffi/ffi](https://github.com/ffi/ffi).
+Unlike other Ruby serial port implementations, it supports all of the most popular Ruby implementations (MRI, JRuby, & Rubinius) on the most popular operating systems (macOS, Linux, FreeBSD & Windows). And it does not require any native compilation thanks to using RubyFFI [https://github.com/ffi/ffi](https://github.com/ffi/ffi).
 
 The interface to RubySerial should be (mostly) compatible with other Ruby serialport gems, so you should be able to drop in the new gem, change the `require` and use it as a replacement. If not, please let us know so we can address any issues.
 
@@ -51,9 +51,9 @@ The test suite is written using rspec, just use the `rspec` command.
 
 ### Test dependencies
 
-To run the tests on OS X and Linux, you must also have the `socat` utility program installed.
+To run the tests on macOS, Linux and FreeBSD, you must also have the `socat` utility program installed.
 
-#### Installing socat on OS X
+#### Installing socat on macOS
 
 ```
 brew install socat
@@ -65,6 +65,12 @@ brew install socat
 sudo apt-get install socat
 ```
 
+#### Installing socat on FreeBSD
+
+```
+pkg install socat
+```
+
 #### Test on Windows
 
 To run the tests on Windows requires com0com which can be downloaded from here:

appveyor.yml

@@ -20,10 +20,8 @@ test_script:
 
 environment:
   matrix:
+    - ruby_version: 26
+    - ruby_version: 25
     - ruby_version: 24
-    - ruby_version: 23
-    - ruby_version: 22
-    - ruby_version: 21
-    - ruby_version: 200
 
 build: off

lib/rubyserial.rb

@@ -6,6 +6,7 @@
 module RubySerial
   ON_WINDOWS = RbConfig::CONFIG['host_os'] =~ /mswin|windows|mingw/i
   ON_LINUX = RbConfig::CONFIG['host_os'] =~ /linux/i
+  ON_FREEBSD = RbConfig::CONFIG['host_os'] =~ /freebsd/i
   class Error < IOError
   end
 end
@@ -16,8 +17,10 @@ class Error < IOError
 else
   if RubySerial::ON_LINUX
     require 'rubyserial/linux_constants'
+  elsif RubySerial::ON_FREEBSD
+    require 'rubyserial/freebsd_constants'
   else
-    require 'rubyserial/osx_constants'
+    require 'rubyserial/darwin_constants'
   end
   require 'rubyserial/posix'
 end

lib/rubyserial/osx_constants.rb → lib/rubyserial/darwin_constants.rb

@@ -5,22 +5,23 @@ module Posix
   extend FFI::Library
     ffi_lib FFI::Library::LIBC
 
-    O_RDWR = 0x0002
-    O_NOCTTY = 0x20000
     O_NONBLOCK = 0x0004
+    O_NOCTTY = 0x20000
+    O_RDWR = 0x0002
     F_GETFL = 3
     F_SETFL = 4
+    VTIME = 17
+    TCSANOW = 0
+
     IGNPAR = 0x00000004
     PARENB = 0x00001000
     PARODD = 0x00002000
-    VMIN = 16
-    VTIME = 17
-    CLOCAL = 0x00008000
     CSTOPB = 0x00000400
     CREAD  = 0x00000800
-    CCTS_OFLOW = 0x00010000 # Clearing this disables RTS AND CTS.
-    TCSANOW = 0
+    CLOCAL = 0x00008000
+    VMIN = 16
     NCCS = 20
+    CCTS_OFLOW = 0x00010000 # Clearing this disables RTS AND CTS.
 
     DATA_BITS = {
       5 => 0x00000000,
@@ -29,7 +30,7 @@ module Posix
       8 => 0x00000300
     }
 
-    BAUDE_RATES = {
+    BAUD_RATES = {
       0 => 0,
       50 => 50,
       75 => 75,

lib/rubyserial/freebsd_constants.rb

@@ -0,0 +1,223 @@
+# Copyright (c) 2014-2016 The Hybrid Group
+
+module RubySerial
+  module Posix
+  extend FFI::Library
+    ffi_lib FFI::Library::LIBC
+
+    O_NONBLOCK = 0x0004
+    O_NOCTTY = 0x8000
+    O_RDWR = 0x0002
+    F_GETFL = 3
+    F_SETFL = 4
+    VTIME = 17
+    TCSANOW = 0
+
+    IGNPAR = 0x00000004
+    PARENB = 0x00001000
+    PARODD = 0x00002000
+    CSTOPB = 0x00000400
+    CREAD  = 0x00000800
+    CLOCAL = 0x00008000
+    VMIN = 16
+    NCCS = 20
+    CCTS_OFLOW = 0x00010000 # Clearing this disables RTS AND CTS.
+
+    DATA_BITS = {
+      5 => 0x00000000,
+      6 => 0x00000100,
+      7 => 0x00000200,
+      8 => 0x00000300
+    }
+
+    BAUD_RATES = {
+      0 => 0,
+      50 => 50,
+      75 => 75,
+      110 => 110,
+      134 => 134,
+      150 => 150,
+      200 => 200,
+      300 => 300,
+      600 => 600,
+      1200 => 1200,
+      1800 => 1800,
+      2400 => 2400,
+      4800 => 4800,
+      9600 => 9600,
+      19200 => 19200,
+      38400 => 38400,
+      7200 =>  7200,
+      14400 => 14400,
+      28800 => 28800,
+      57600 => 57600,
+      76800 => 76800,
+      115200 => 115200,
+      230400 => 230400
+    }
+
+    PARITY = {
+      :none => 0x00000000,
+      :even => PARENB,
+      :odd => PARENB | PARODD,
+    }
+
+    STOPBITS = {
+      1 => 0x00000000,
+      2 => CSTOPB
+    }
+
+    ERROR_CODES = {
+      1 => "EPERM",
+      2 => "ENOENT",
+      3 => "ESRCH",
+      4 => "EINTR",
+      5 => "EIO",
+      6 => "ENXIO",
+      7 => "E2BIG",
+      8 => "ENOEXEC",
+      9 => "EBADF",
+      10 => "ECHILD",
+      11 => "EAGAIN",
+      12 => "ENOMEM",
+      13 => "EACCES",
+      14 => "EFAULT",
+      15 => "ENOTBLK",
+      16 => "EBUSY",
+      17 => "EEXIST",
+      18 => "EXDEV",
+      19 => "ENODEV",
+      20 => "ENOTDIR",
+      21 => "EISDIR",
+      22 => "EINVAL",
+      23 => "ENFILE",
+      24 => "EMFILE",
+      25 => "ENOTTY",
+      26 => "ETXTBSY",
+      27 => "EFBIG",
+      28 => "ENOSPC",
+      29 => "ESPIPE",
+      30 => "EROFS",
+      31 => "EMLINK",
+      32 => "EPIPE",
+      33 => "EDOM",
+      34 => "ERANGE",
+      35 => "EDEADLK",
+      36 => "ENAMETOOLONG",
+      37 => "ENOLCK ",
+      38 => "ENOSYS",
+      39 => "ENOTEMPTY",
+      40 => "ELOOP",
+
+      42 => "ENOMSG",
+      43 => "EIDRM",
+      44 => "ECHRNG",
+      45 => "EL2NSYNC",
+      46 => "EL3HLT",
+      47 => "EL3RST",
+      48 => "ELNRNG",
+      49 => "EUNATCH",
+      50 => "ENOCSI",
+      51 => "EL2HLT",
+      52 => "EBADE",
+      53 => "EBADR",
+      54 => "EXFULL",
+      55 => "ENOANO",
+      56 => "EBADRQC",
+      57 => "EBADSLT",
+
+      59 => "EBFONT",
+      60 => "ENOSTR",
+      61 => "ENODATA",
+      62 => "ETIME",
+      63 => "ENOSR",
+      64 => "ENONET",
+      65 => "ENOPKG",
+      66 => "EREMOTE",
+      67 => "ENOLINK",
+      68 => "EADV",
+      69 => "ESRMNT",
+      70 => "ECOMM",
+      71 => "EPROTO",
+      72 => "EMULTIHOP",
+      73 => "EDOTDOT",
+      74 => "EBADMSG",
+      75 => "EOVERFLOW",
+      76 => "ENOTUNIQ",
+      77 => "EBADFD",
+      78 => "EREMCHG",
+      79 => "ELIBACC",
+      80 => "ELIBBAD",
+      81 => "ELIBSCN",
+      82 => "ELIBMAX",
+      83 => "ELIBEXEC",
+      84 => "EILSEQ",
+      85 => "ERESTART",
+      86 => "ESTRPIPE",
+      87 => "EUSERS",
+      88 => "ENOTSOCK",
+      89 => "EDESTADDRREQ",
+      90 => "EMSGSIZE",
+      91 => "EPROTOTYPE",
+      92 => "ENOPROTOOPT",
+      93 => "EPROTONOSUPPORT",
+      94 => "ESOCKTNOSUPPORT",
+      95 => "EOPNOTSUPP",
+      96 => "EPFNOSUPPORT",
+      97 => "EAFNOSUPPORT",
+      98 => "EADDRINUSE",
+      99 => "EADDRNOTAVAIL",
+      100 => "ENETDOWN",
+      101 => "ENETUNREACH",
+      102 => "ENETRESET",
+      103 => "ECONNABORTED",
+      104 => "ECONNRESET",
+      105 => "ENOBUFS",
+      106 => "EISCONN",
+      107 => "ENOTCONN",
+      108 => "ESHUTDOWN",
+      109 => "ETOOMANYREFS",
+      110 => "ETIMEDOUT",
+      111 => "ECONNREFUSED",
+      112 => "EHOSTDOWN",
+      113 => "EHOSTUNREACH",
+      114 => "EALREADY",
+      115 => "EINPROGRESS",
+      116 => "ESTALE",
+      117 => "EUCLEAN",
+      118 => "ENOTNAM",
+      119 => "ENAVAIL",
+      120 => "EISNAM",
+      121 => "EREMOTEIO",
+      122 => "EDQUOT",
+      123 => "ENOMEDIUM",
+      124 => "EMEDIUMTYPE",
+      125 => "ECANCELED",
+      126 => "ENOKEY",
+      127 => "EKEYEXPIRED",
+      128 => "EKEYREVOKED",
+      129 => "EKEYREJECTED",
+      130 => "EOWNERDEAD",
+      131 => "ENOTRECOVERABLE"
+    }
+
+    class Termios < FFI::Struct
+      layout  :c_iflag, :uint,
+              :c_oflag, :uint,
+              :c_cflag, :uint,
+              :c_lflag, :uint,
+              :c_line, :uchar,
+              :cc_c, [ :uchar, NCCS ],
+              :c_ispeed, :uint,
+              :c_ospeed, :uint
+    end
+
+    attach_function :ioctl, [ :int, :ulong, RubySerial::Posix::Termios], :int, blocking: true
+    attach_function :tcsetattr, [ :int, :int, RubySerial::Posix::Termios ], :int, blocking: true
+    attach_function :fcntl, [:int, :int, :varargs], :int, blocking: true
+    attach_function :open, [:pointer, :int], :int, blocking: true
+    attach_function :close, [:int], :int, blocking: true
+    attach_function :write, [:int, :pointer,  :int],:int, blocking: true
+    attach_function :read, [:int, :pointer,  :int],:int, blocking: true
+  end
+end

lib/rubyserial/linux_constants.rb

@@ -29,7 +29,7 @@ module Posix
       8 => 0000060
     }
 
-    BAUDE_RATES = {
+    BAUD_RATES = {
       0 => 0000000,
       50 => 0000001,
       75 => 0000002,
@@ -94,7 +94,7 @@ module Posix
       17 => "EEXIST",
       18 => "EXDEV",
       19 => "ENODEV",
-      20 => "ENOTDIR ",
+      20 => "ENOTDIR",
       21 => "EISDIR",
       22 => "EINVAL",
       23 => "ENFILE",
@@ -115,6 +115,7 @@ module Posix
       38 => "ENOSYS",
       39 => "ENOTEMPTY",
       40 => "ELOOP",
+
       42 => "ENOMSG",
       43 => "EIDRM",
       44 => "ECHRNG",
@@ -131,6 +132,7 @@ module Posix
       55 => "ENOANO",
       56 => "EBADRQC",
       57 => "EBADSLT",
+
       59 => "EBFONT",
       60 => "ENOSTR",
       61 => "ENODATA",