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moby--moby/pkg/mount/mountinfo_freebsd.go

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package mount
/*
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
*/
import "C"
import (
"fmt"
"reflect"
"unsafe"
)
// Parse /proc/self/mountinfo because comparing Dev and ino does not work from bind mounts
func parseMountTable() ([]*MountInfo, error) {
var rawEntries *C.struct_statfs
count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT))
if count == 0 {
return nil, fmt.Errorf("Failed to call getmntinfo")
}
var entries []C.struct_statfs
header := (*reflect.SliceHeader)(unsafe.Pointer(&entries))
header.Cap = count
header.Len = count
header.Data = uintptr(unsafe.Pointer(rawEntries))
var out []*MountInfo
for _, entry := range entries {
var mountinfo MountInfo
mountinfo.Mountpoint = C.GoString(&entry.f_mntonname[0])
out = append(out, &mountinfo)
}
return out, nil
}