From 4e30080c64507c9a83bbedb4178bc9a892065dea Mon Sep 17 00:00:00 2001
From: Alexey Guskov <lexag@mail.ru>
Date: Wed, 29 Jul 2015 21:25:56 +0300
Subject: [PATCH] make docker compile on freebsd

Signed-off-by: Alexey Guskov <lexag@mail.ru>
---
 .../{directory_linux.go => directory_unix.go} |  2 +-
 .../operatingsystem_freebsd.go                | 18 +++++++++++++
 reexec/command_freebsd.go                     | 23 ++++++++++++++++
 reexec/command_unsupported.go                 |  2 +-
 sockets/unix_socket.go                        |  2 +-
 sysinfo/sysinfo_freebsd.go                    |  7 +++++
 system/stat_freebsd.go                        | 27 +++++++++++++++++++
 system/stat_unsupported.go                    |  2 +-
 8 files changed, 79 insertions(+), 4 deletions(-)
 rename directory/{directory_linux.go => directory_unix.go} (97%)
 create mode 100644 parsers/operatingsystem/operatingsystem_freebsd.go
 create mode 100644 reexec/command_freebsd.go
 create mode 100644 sysinfo/sysinfo_freebsd.go
 create mode 100644 system/stat_freebsd.go

diff --git a/directory/directory_linux.go b/directory/directory_unix.go
similarity index 97%
rename from directory/directory_linux.go
rename to directory/directory_unix.go
index 80fb9a8..dbebdd3 100644
--- a/directory/directory_linux.go
+++ b/directory/directory_unix.go
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux freebsd
 
 package directory
 
diff --git a/parsers/operatingsystem/operatingsystem_freebsd.go b/parsers/operatingsystem/operatingsystem_freebsd.go
new file mode 100644
index 0000000..0589cf2
--- /dev/null
+++ b/parsers/operatingsystem/operatingsystem_freebsd.go
@@ -0,0 +1,18 @@
+package operatingsystem
+
+import (
+	"errors"
+)
+
+// GetOperatingSystem gets the name of the current operating system.
+func GetOperatingSystem() (string, error) {
+	// TODO: Implement OS detection
+	return "", errors.New("Cannot detect OS version")
+}
+
+// IsContainerized returns true if we are running inside a container.
+// No-op on FreeBSD, always returns false.
+func IsContainerized() (bool, error) {
+	// TODO: Implement jail detection
+	return false, errors.New("Cannot detect if we are in container")
+}
diff --git a/reexec/command_freebsd.go b/reexec/command_freebsd.go
new file mode 100644
index 0000000..c7f797a
--- /dev/null
+++ b/reexec/command_freebsd.go
@@ -0,0 +1,23 @@
+// +build freebsd
+
+package reexec
+
+import (
+	"os/exec"
+)
+
+// Self returns the path to the current process's binary.
+// Uses os.Args[0].
+func Self() string {
+	return naiveSelf()
+}
+
+// Command returns *exec.Cmd which have Path as current binary.
+// For example if current binary is "docker" at "/usr/bin/", then cmd.Path will
+// be set to "/usr/bin/docker".
+func Command(args ...string) *exec.Cmd {
+	return &exec.Cmd{
+		Path: Self(),
+		Args: args,
+	}
+}
diff --git a/reexec/command_unsupported.go b/reexec/command_unsupported.go
index 630eecb..ad4ea38 100644
--- a/reexec/command_unsupported.go
+++ b/reexec/command_unsupported.go
@@ -1,4 +1,4 @@
-// +build !linux,!windows
+// +build !linux,!windows,!freebsd
 
 package reexec
 
diff --git a/sockets/unix_socket.go b/sockets/unix_socket.go
index 42e558e..a69c28b 100644
--- a/sockets/unix_socket.go
+++ b/sockets/unix_socket.go
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux freebsd
 
 package sockets
 
diff --git a/sysinfo/sysinfo_freebsd.go b/sysinfo/sysinfo_freebsd.go
new file mode 100644
index 0000000..25896f9
--- /dev/null
+++ b/sysinfo/sysinfo_freebsd.go
@@ -0,0 +1,7 @@
+package sysinfo
+
+// TODO FreeBSD
+func New(quiet bool) *SysInfo {
+	sysInfo := &SysInfo{}
+	return sysInfo
+}
diff --git a/system/stat_freebsd.go b/system/stat_freebsd.go
new file mode 100644
index 0000000..4b2198b
--- /dev/null
+++ b/system/stat_freebsd.go
@@ -0,0 +1,27 @@
+package system
+
+import (
+	"syscall"
+)
+
+// fromStatT converts a syscall.Stat_t type to a system.Stat_t type
+func fromStatT(s *syscall.Stat_t) (*Stat_t, error) {
+	return &Stat_t{size: s.Size,
+		mode: uint32(s.Mode),
+		uid:  s.Uid,
+		gid:  s.Gid,
+		rdev: uint64(s.Rdev),
+		mtim: s.Mtimespec}, nil
+}
+
+// Stat takes a path to a file and returns
+// a system.Stat_t type pertaining to that file.
+//
+// Throws an error if the file does not exist
+func Stat(path string) (*Stat_t, error) {
+	s := &syscall.Stat_t{}
+	if err := syscall.Stat(path, s); err != nil {
+		return nil, err
+	}
+	return fromStatT(s)
+}
diff --git a/system/stat_unsupported.go b/system/stat_unsupported.go
index 7e0d034..5251ae2 100644
--- a/system/stat_unsupported.go
+++ b/system/stat_unsupported.go
@@ -1,4 +1,4 @@
-// +build !linux,!windows
+// +build !linux,!windows,!freebsd
 
 package system