/
pop_posix.go
51 lines (45 loc) · 925 Bytes
/
pop_posix.go
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package tarheader
/*
#define _BSD_SOURCE
#define _DEFAULT_SOURCE
#include <sys/types.h>
unsigned int
my_major(dev_t dev)
{
return major(dev);
}
unsigned int
my_minor(dev_t dev)
{
return minor(dev);
}
*/
import "C"
import (
"archive/tar"
"os"
"syscall"
)
func init() {
populateHeaderStat = append(populateHeaderStat, populateHeaderUnix)
}
func populateHeaderUnix(h *tar.Header, fi os.FileInfo, seen map[uint64]string) {
st, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
return
}
h.Uid = int(st.Uid)
h.Gid = int(st.Gid)
if st.Mode&syscall.S_IFMT == syscall.S_IFBLK || st.Mode&syscall.S_IFMT == syscall.S_IFCHR {
h.Devminor = int64(C.my_minor(C.dev_t(st.Rdev)))
h.Devmajor = int64(C.my_major(C.dev_t(st.Rdev)))
}
// If we have already seen this inode, generate a hardlink
p, ok := seen[uint64(st.Ino)]
if ok {
h.Linkname = p
h.Typeflag = tar.TypeLink
} else {
seen[uint64(st.Ino)] = h.Name
}
}