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Cygwin: AF_UNIX: add a unique id to struct fh_ser

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This commit is contained in:
Ken Brown 2020-11-18 11:55:08 -05:00
parent 5a98fbb4f8
commit ee4f7ec67e
1 changed files with 8 additions and 4 deletions
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12
winsup/cygwin/fhandler_socket_unix.cc
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@ -1941,6 +1941,7 @@ fhandler_socket_unix::getpeereid (pid_t *pid, uid_t *euid, gid_t *egid)
struct fh_ser
{
fhandler_union fhu;
int64_t uniq_id;
DWORD winpid; /* Windows pid of sender. */
};
@ -1955,6 +1956,7 @@ void *
fhandler_socket_unix::serialize (int fd)
{
fh_ser *fhs = NULL;
int64_t id;
fhandler_base *oldfh, *newfh = NULL;
cygheap_fdget cfd (fd);
@ -1986,6 +1988,9 @@ fhandler_socket_unix::serialize (int fd)
fhs = (fh_ser *) cmalloc_abort (HEAP_FHANDLER, sizeof (fh_ser));
memcpy ((void *) &fhs->fhu, newfh, newfh->get_size ());
fhs->winpid = GetCurrentProcessId ();
NtAllocateLocallyUniqueId ((PLUID) &id);
fhs->uniq_id = id;
/* FIXME: Save pending ack. */
save_fh = newfh;
out:
return (void *) fhs;
@ -2018,10 +2023,9 @@ fhandler_socket_unix::deserialize (void *bufp)
if (cfd < 0)
return -1;
newfh = oldfh->clone ();
if (oldfh->dup (newfh, 0, winpid) == 0)
/* FIXME: Notify sender that it can close its temporary copy in save_fh. */
;
else
int ret = oldfh->dup (newfh, 0, winpid);
/* FIXME: Send ack to sender that it can close fhs->uniq_id. */
if (ret < 0)
{
debug_printf ("can't duplicate handles");
delete newfh;