File 0017-fs-allow-ownership-match-if-user-is-in-adm... of Package libgit2.28344

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File 0017-fs-allow-ownership-match-if-user-is-in-admin-group.patch of Package libgit2.28344

From decffcf2efd67da717e1d8ff0cc757d076afe861 Mon Sep 17 00:00:00 2001
From: Edward Thomson <ethomson@edwardthomson.com>
Date: Thu, 7 Jul 2022 00:02:19 -0400
Subject: [PATCH 17/20] fs: allow ownership match if user is in admin group

Allow the user ownership to match if the file is owned by the admin
group and the user is in the admin group, even if the current process is
not running as administrator directly.
---
 src/path.c | 24 ++++++++++++++++++------
 src/path.h |  9 ++++++++-
 2 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/src/path.c b/src/path.c
index efd094298..606b2ed5e 100644
--- a/src/path.c
+++ b/src/path.c
@@ -2124,6 +2124,7 @@ int git_path_owner_is(
 	git_path_owner_t owner_type)
 {
 	PSID owner_sid = NULL, user_sid = NULL;
+	BOOL is_admin, admin_owned;
 	int error;
 
 	if (mock_owner) {
@@ -2144,12 +2145,22 @@ int git_path_owner_is(
 		}
 	}
 
-	if ((owner_type & GIT_PATH_OWNER_ADMINISTRATOR) != 0) {
-		if (IsWellKnownSid(owner_sid, WinBuiltinAdministratorsSid) ||
-		    IsWellKnownSid(owner_sid, WinLocalSystemSid)) {
-			*out = true;
-			goto done;
-		}
+	admin_owned =
+		IsWellKnownSid(owner_sid, WinBuiltinAdministratorsSid) ||
+		IsWellKnownSid(owner_sid, WinLocalSystemSid);
+
+	if (admin_owned &&
+	    (owner_type & GIT_PATH_OWNER_ADMINISTRATOR) != 0) {
+		*out = true;
+		goto done;
+	}
+
+	if (admin_owned &&
+	    (owner_type & GIT_PATH_USER_IS_ADMINISTRATOR) != 0 &&
+	    CheckTokenMembership(NULL, owner_sid, &is_admin) &&
+	    is_admin) {
+		*out = true;
+		goto done;
 	}
 
 	*out = false;
@@ -2201,6 +2212,7 @@ int git_path_owner_is(
 
 	return 0;
 }
+
 #endif
 
 int git_path_owner_is_current_user(bool *out, const char *path)
diff --git a/src/path.h b/src/path.h
index 4a23475e3..bb51cff11 100644
--- a/src/path.h
+++ b/src/path.h
@@ -731,8 +731,15 @@ typedef enum {
 	/** The file must be owned by the system account. */
 	GIT_PATH_OWNER_ADMINISTRATOR = (1 << 1),
 
+	/**
+	 * The file may be owned by a system account if the current
+	 * user is in an administrator group. Windows only; this is
+	 * a noop on non-Windows systems.
+	 */
+	GIT_PATH_USER_IS_ADMINISTRATOR = (1 << 2),
+
 	/** The file may be owned by another user. */
-	GIT_PATH_OWNER_OTHER = (1 << 2)
+	GIT_PATH_OWNER_OTHER = (1 << 3)
 } git_path_owner_t;
 
 /**
-- 
2.37.1

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File 0017-fs-allow-ownership-match-if-user-is-in-admin-group.patch of Package libgit2.28344

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