Get the Docker Engine to build clean on Solaris

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

mount/flags_unsupported.go

@@ -1,4 +1,4 @@
-// +build !linux,!freebsd freebsd,!cgo
+// +build !linux,!freebsd freebsd,!cgo solaris,!cgo
 
 package mount
 

mount/mount.go

@@ -9,8 +9,8 @@ func GetMounts() ([]*Info, error) {
 	return parseMountTable()
 }
 
-// Mounted looks at /proc/self/mountinfo to determine of the specified
-// mountpoint has been mounted
+// Mounted determines if a specified mountpoint has been mounted.
+// On Linux it looks at /proc/self/mountinfo and on Solaris at mnttab.
 func Mounted(mountpoint string) (bool, error) {
 	entries, err := parseMountTable()
 	if err != nil {

mount/mounter_solaris.go

@@ -0,0 +1,33 @@
+// +build solaris,cgo
+
+package mount
+
+import (
+	"golang.org/x/sys/unix"
+	"unsafe"
+)
+
+// #include <stdlib.h>
+// #include <stdio.h>
+// #include <sys/mount.h>
+// int Mount(const char *spec, const char *dir, int mflag,
+// char *fstype, char *dataptr, int datalen, char *optptr, int optlen) {
+//     return mount(spec, dir, mflag, fstype, dataptr, datalen, optptr, optlen);
+// }
+import "C"
+
+func mount(device, target, mType string, flag uintptr, data string) error {
+	spec := C.CString(device)
+	dir := C.CString(target)
+	fstype := C.CString(mType)
+	_, err := C.Mount(spec, dir, C.int(flag), fstype, nil, 0, nil, 0)
+	C.free(unsafe.Pointer(spec))
+	C.free(unsafe.Pointer(dir))
+	C.free(unsafe.Pointer(fstype))
+	return err
+}
+
+func unmount(target string, flag int) error {
+	err := unix.Unmount(target, flag)
+	return err
+}

mount/mounter_unsupported.go

@@ -1,4 +1,4 @@
-// +build !linux,!freebsd freebsd,!cgo
+// +build !linux,!freebsd,!solaris freebsd,!cgo solaris,!cgo
 
 package mount
 

mount/mountinfo_solaris.go

@@ -0,0 +1,37 @@
+// +build solaris,cgo
+
+package mount
+
+/*
+#include <stdio.h>
+#include <sys/mnttab.h>
+*/
+import "C"
+
+import (
+	"fmt"
+)
+
+func parseMountTable() ([]*Info, error) {
+	mnttab := C.fopen(C.CString(C.MNTTAB), C.CString("r"))
+	if mnttab == nil {
+		return nil, fmt.Errorf("Failed to open %s", C.MNTTAB)
+	}
+
+	var out []*Info
+	var mp C.struct_mnttab
+
+	ret := C.getmntent(mnttab, &mp)
+	for ret == 0 {
+		var mountinfo Info
+		mountinfo.Mountpoint = C.GoString(mp.mnt_mountp)
+		mountinfo.Source = C.GoString(mp.mnt_special)
+		mountinfo.Fstype = C.GoString(mp.mnt_fstype)
+		mountinfo.Opts = C.GoString(mp.mnt_mntopts)
+		out = append(out, &mountinfo)
+		ret = C.getmntent(mnttab, &mp)
+	}
+
+	C.fclose(mnttab)
+	return out, nil
+}

mount/mountinfo_unsupported.go

@@ -1,4 +1,4 @@
-// +build !windows,!linux,!freebsd freebsd,!cgo
+// +build !windows,!linux,!freebsd,!solaris freebsd,!cgo solaris,!cgo
 
 package mount