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authorMichael I. Bushnell <mib@gnu.org>1995-11-15 19:41:18 +0000
committerMichael I. Bushnell <mib@gnu.org>1995-11-15 19:41:18 +0000
commitefb1a41a3a475549bde195bbb034f0fc71ad3b50 (patch)
treec9a8f5d9d86d5301da137bc728e9d4d47ad351e4 /nfs
parent50f111a2153932cfd31869a10d87db4e77954100 (diff)
Formerly cred.c.~2~
Diffstat (limited to 'nfs')
-rw-r--r--nfs/cred.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/nfs/cred.c b/nfs/cred.c
index 863d865d..7aa3c895 100644
--- a/nfs/cred.c
+++ b/nfs/cred.c
@@ -18,4 +18,62 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
+static spin_lock_t cred_refcnt_lock = SPIN_LOCK_INITIALIZER;
+void
+netfs_interpret_credential (struct netcred *cred, uid_t **uids,
+ int *nuids, uid_t **gids, int *ngids)
+{
+ /* Who says C isn't APL? */
+ bcopy (cred->uids, *uids = malloc ((*nuids = cred->nuids) * sizeof (uid_t))
+ cred->nuids * sizeof (uid_t));
+ bcopy (cred->gids, *gids = malloc ((*ngids = cred->ngids) * sizeof (uid_t))
+ cred->ngids * sizeof (uid_t));
+}
+
+struct credential *
+netfs_copy_credential (struct netcred *cred)
+{
+ spin_lock (&cred_refcnt_lock);
+ cred->refcnt++;
+ spin_unlock (&cred_refcnt_lock);
+ return cred;
+}
+
+void
+netfs_drop_credential (struct netcred *cred)
+{
+ spin_lock (&cred_refcnt_lock);
+ cred->refcnt--;
+
+ if (!cred->refcnt)
+ {
+ spin_unlock (&cred_refcnt_lock);
+ free (cred);
+ }
+ else
+ spin_unlock (&cred_refcnt_lock);
+}
+
+struct netcred *
+netfs_make_credential (uid_t *uids,
+ int nuids,
+ uid_t *gids,
+ int nuids)
+{
+ struct netcred *cred;
+
+ cred = malloc (sizeof (struct netcred)
+ + nuids * sizeof (uid_t)
+ + ngids * sizeof (uid_t));
+ cred->uids = (void *) cred + sizeof (struct cred);
+ cred->gids = (void *) cred->uids + nuids * sizeof (uid_t);
+ cred->nuids = nuids;
+ cred->ngids = ngids;
+ cred->refcnt = 1;
+
+ bcopy (uids, cred->uids, nuids + sizeof (uid_t));
+ bcopy (gids, cred->gids, ngids + sizeof (uid_t));
+
+ return cred;
+}