From: Joseph Sutton <josephsutton@catalyst.net.nz>
Date: Mon, 30 Oct 2023 01:51:17 +0000 (+1300)
Subject: libcli/security: Add sids_contains_sid()
X-Git-Tag: talloc-2.4.2~929
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=04611d9ebc1c54c6ec6ee3a6a365035dd477283c;p=thirdparty%2Fsamba.git

libcli/security: Add sids_contains_sid()

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---

diff --git a/libcli/security/dom_sid.h b/libcli/security/dom_sid.h
index 534b4808ce5..058200d0fe4 100644
--- a/libcli/security/dom_sid.h
+++ b/libcli/security/dom_sid.h
@@ -141,6 +141,9 @@ void del_sid_from_array(const struct dom_sid *sid, struct dom_sid **sids,
 bool add_rid_to_array_unique(TALLOC_CTX *mem_ctx,
 			     uint32_t rid, uint32_t **pp_rids, size_t *p_num);
 bool is_null_sid(const struct dom_sid *sid);
+bool sids_contains_sid(const struct dom_sid *sids,
+		       const uint32_t num_sids,
+		       const struct dom_sid *sid);
 bool sids_contains_sid_attrs(const struct auth_SidAttr *sids,
 			     const uint32_t num_sids,
 			     const struct dom_sid *sid,
diff --git a/libcli/security/util_sid.c b/libcli/security/util_sid.c
index b3408b37a46..8b548199261 100644
--- a/libcli/security/util_sid.c
+++ b/libcli/security/util_sid.c
@@ -511,6 +511,28 @@ bool is_null_sid(const struct dom_sid *sid)
 	return dom_sid_equal(sid, &null_sid);
 }
 
+/**
+ * Return true if an array of SIDs contains a certain SID.
+ *
+ * @param [in] sids	The SID array.
+ * @param [in] num_sids	The size of the SID array.
+ * @param [in] sid	The SID in question.
+ * @returns true if the array contains the SID.
+ */
+bool sids_contains_sid(const struct dom_sid *sids,
+		       const uint32_t num_sids,
+		       const struct dom_sid *sid)
+{
+	uint32_t i;
+
+	for (i = 0; i < num_sids; i++) {
+		if (dom_sid_equal(&sids[i], sid)) {
+			return true;
+		}
+	}
+	return false;
+}
+
 /**
  * Return true if an array of auth_SidAttr contains a certain SID with certain
  * attributes.