sys-auth/polkit: restore polkit-0.118-make-netgroup-support-optional.patch

This patch got rebased for the latest snapshot but not this one, so
bring it back for now.

Fixes: 76caeda5c0ae4a7045d321f32ef95e31722434dd
Reported-by: Matthias Maier <tamiko@gentoo.org>
Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 248 insertions, 0 deletions

diff --git a/sys-auth/polkit/files/polkit-0.118-make-netgroup-support-optional.patch b/sys-auth/polkit/files/polkit-0.118-make-netgroup-support-optional.patch
new file mode 100644
index 000000000000..8810e70b7378
--- /dev/null
+++ b/sys-auth/polkit/files/polkit-0.118-make-netgroup-support-optional.patch
@@ -0,0 +1,248 @@
+Pulled in from https://github.com/gentoo/musl/blob/master/sys-auth/polkit/files/polkit-0.118-make-netgroup-support-optional.patch.
+
+https://bugs.gentoo.org/833753
+https://bugs.gentoo.org/561672
+https://bugs.freedesktop.org/show_bug.cgi?id=50145
+https://gitlab.freedesktop.org/polkit/polkit/-/issues/14
+
+Patch has been rebased a bit since but keeping original headers.
+
+From c7ad7cb3ca8fca32b9b64b0fc33867b98935b76b Mon Sep 17 00:00:00 2001
+From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
+Date: Wed, 11 Jul 2018 04:54:26 -0500
+Subject: [PATCH] make netgroup support optional
+
+On at least Linux/musl and Linux/uclibc, netgroup support is not
+available.  PolKit fails to compile on these systems for that reason.
+
+This change makes netgroup support conditional on the presence of the
+setnetgrent(3) function which is required for the support to work.  If
+that function is not available on the system, an error will be returned
+to the administrator if unix-netgroup: is specified in configuration.
+
+Fixes bug 50145.
+
+Signed-off-by: A. Wilcox <AWilcox@Wilcox-Tech.com>
+--- a/configure.ac
++++ b/configure.ac
+@@ -100,7 +100,7 @@ AC_CHECK_LIB(expat,XML_ParserCreate,[EXPAT_LIBS="-lexpat"],
+ 	     [AC_MSG_ERROR([Can't find expat library. Please install expat.])])
+ AC_SUBST(EXPAT_LIBS)
+ 
+-AC_CHECK_FUNCS(clearenv fdatasync)
++AC_CHECK_FUNCS(clearenv fdatasync setnetgrent)
+ 
+ if test "x$GCC" = "xyes"; then
+   LDFLAGS="-Wl,--as-needed $LDFLAGS"
+--- a/src/polkit/polkitidentity.c
++++ b/src/polkit/polkitidentity.c
+@@ -182,7 +182,15 @@ polkit_identity_from_string  (const gchar   *str,
+     }
+   else if (g_str_has_prefix (str, "unix-netgroup:"))
+     {
++#ifndef HAVE_SETNETGRENT
++      g_set_error (error,
++                   POLKIT_ERROR,
++                   POLKIT_ERROR_FAILED,
++                   "Netgroups are not available on this machine ('%s')",
++                   str);
++#else
+       identity = polkit_unix_netgroup_new (str + sizeof "unix-netgroup:" - 1);
++#endif
+     }
+ 
+   if (identity == NULL && (error != NULL && *error == NULL))
+@@ -344,6 +352,14 @@ polkit_identity_new_for_gvariant (GVariant  *variant,
+       GVariant *v;
+       const char *name;
+ 
++#ifndef HAVE_SETNETGRENT
++      g_set_error (error,
++                   POLKIT_ERROR,
++                   POLKIT_ERROR_FAILED,
++                   "Netgroups are not available on this machine");
++      goto out;
++#else
++
+       v = lookup_asv (details_gvariant, "name", G_VARIANT_TYPE_STRING, error);
+       if (v == NULL)
+         {
+@@ -353,6 +369,7 @@ polkit_identity_new_for_gvariant (GVariant  *variant,
+       name = g_variant_get_string (v, NULL);
+       ret = polkit_unix_netgroup_new (name);
+       g_variant_unref (v);
++#endif
+     }
+   else
+     {
+--- a/src/polkit/polkitunixnetgroup.c
++++ b/src/polkit/polkitunixnetgroup.c
+@@ -194,6 +194,9 @@ polkit_unix_netgroup_set_name (PolkitUnixNetgroup *group,
+ PolkitIdentity *
+ polkit_unix_netgroup_new (const gchar *name)
+ {
++#ifndef HAVE_SETNETGRENT
++  g_assert_not_reached();
++#endif
+   g_return_val_if_fail (name != NULL, NULL);
+   return POLKIT_IDENTITY (g_object_new (POLKIT_TYPE_UNIX_NETGROUP,
+                                        "name", name,
+--- a/src/polkitbackend/polkitbackendinteractiveauthority.c
++++ b/src/polkitbackend/polkitbackendinteractiveauthority.c
+@@ -2233,25 +2233,26 @@ get_users_in_net_group (PolkitIdentity                    *group,
+   GList *ret;
+ 
+   ret = NULL;
++#ifdef HAVE_SETNETGRENT
+   name = polkit_unix_netgroup_get_name (POLKIT_UNIX_NETGROUP (group));
+ 
+-#ifdef HAVE_SETNETGRENT_RETURN
++# ifdef HAVE_SETNETGRENT_RETURN
+   if (setnetgrent (name) == 0)
+     {
+       g_warning ("Error looking up net group with name %s: %s", name, g_strerror (errno));
+       goto out;
+     }
+-#else
++# else
+   setnetgrent (name);
+-#endif
++# endif /* HAVE_SETNETGRENT_RETURN */
+ 
+   for (;;)
+     {
+-#if defined(HAVE_NETBSD) || defined(HAVE_OPENBSD)
++# if defined(HAVE_NETBSD) || defined(HAVE_OPENBSD)
+       const char *hostname, *username, *domainname;
+-#else
++# else
+       char *hostname, *username, *domainname;
+-#endif
++# endif /* defined(HAVE_NETBSD) || defined(HAVE_OPENBSD) */
+       PolkitIdentity *user;
+       GError *error = NULL;
+ 
+@@ -2282,6 +2283,7 @@ get_users_in_net_group (PolkitIdentity                    *group,
+ 
+  out:
+   endnetgrent ();
++#endif /* HAVE_SETNETGRENT */
+   return ret;
+ }
+ 
+--- a/src/polkitbackend/polkitbackendjsauthority.cpp
++++ b/src/polkitbackend/polkitbackendjsauthority.cpp
+@@ -1519,6 +1519,7 @@ js_polkit_user_is_in_netgroup (JSContext  *cx,
+ 
+   JS::CallArgs args = JS::CallArgsFromVp (argc, vp);
+ 
++#ifdef HAVE_SETNETGRENT
+   JS::RootedString usrstr (authority->priv->cx);
+   usrstr = args[0].toString();
+   user = JS_EncodeStringToUTF8 (cx, usrstr);
+@@ -1533,6 +1534,7 @@ js_polkit_user_is_in_netgroup (JSContext  *cx,
+     {
+       is_in_netgroup =  true;
+     }
++#endif
+ 
+   ret = true;
+ 
+--- a/test/polkit/polkitidentitytest.c
++++ b/test/polkit/polkitidentitytest.c
+@@ -19,6 +19,7 @@
+  * Author: Nikki VonHollen <vonhollen@google.com>
+  */
+ 
++#include "config.h"
+ #include "glib.h"
+ #include <polkit/polkit.h>
+ #include <polkit/polkitprivate.h>
+@@ -145,11 +146,15 @@ struct ComparisonTestData comparison_test_data [] = {
+   {"unix-group:root", "unix-group:jane", FALSE},
+   {"unix-group:jane", "unix-group:jane", TRUE},
+ 
++#ifdef HAVE_SETNETGRENT
+   {"unix-netgroup:foo", "unix-netgroup:foo", TRUE},
+   {"unix-netgroup:foo", "unix-netgroup:bar", FALSE},
++#endif
+ 
+   {"unix-user:root", "unix-group:root", FALSE},
++#ifdef HAVE_SETNETGRENT
+   {"unix-user:jane", "unix-netgroup:foo", FALSE},
++#endif
+ 
+   {NULL},
+ };
+@@ -181,11 +186,13 @@ main (int argc, char *argv[])
+   g_test_add_data_func ("/PolkitIdentity/group_string_2", "unix-group:jane", test_string);
+   g_test_add_data_func ("/PolkitIdentity/group_string_3", "unix-group:users", test_string);
+ 
++#ifdef HAVE_SETNETGRENT
+   g_test_add_data_func ("/PolkitIdentity/netgroup_string", "unix-netgroup:foo", test_string);
++  g_test_add_data_func ("/PolkitIdentity/netgroup_gvariant", "unix-netgroup:foo", test_gvariant);
++#endif
+ 
+   g_test_add_data_func ("/PolkitIdentity/user_gvariant", "unix-user:root", test_gvariant);
+   g_test_add_data_func ("/PolkitIdentity/group_gvariant", "unix-group:root", test_gvariant);
+-  g_test_add_data_func ("/PolkitIdentity/netgroup_gvariant", "unix-netgroup:foo", test_gvariant);
+ 
+   add_comparison_tests ();
+ 
+--- a/test/polkit/polkitunixnetgrouptest.c
++++ b/test/polkit/polkitunixnetgrouptest.c
+@@ -19,6 +19,7 @@
+  * Author: Nikki VonHollen <vonhollen@google.com>
+  */
+ 
++#include "config.h"
+ #include "glib.h"
+ #include <polkit/polkit.h>
+ #include <string.h>
+@@ -69,7 +70,9 @@ int
+ main (int argc, char *argv[])
+ {
+   g_test_init (&argc, &argv, NULL);
++#ifdef HAVE_SETNETGRENT
+   g_test_add_func ("/PolkitUnixNetgroup/new", test_new);
+   g_test_add_func ("/PolkitUnixNetgroup/set_name", test_set_name);
++#endif
+   return g_test_run ();
+ }
+--- a/test/polkitbackend/test-polkitbackendjsauthority.c
++++ b/test/polkitbackend/test-polkitbackendjsauthority.c
+@@ -137,12 +137,14 @@ test_get_admin_identities (void)
+         "unix-group:users"
+       }
+     },
++#ifdef HAVE_SETNETGRENT
+     {
+       "net.company.action3",
+       {
+         "unix-netgroup:foo"
+       }
+     },
++#endif
+   };
+   guint n;
+ 
+--- a/src/polkitbackend/polkitbackendduktapeauthority.c
++++ b/src/polkitbackend/polkitbackendduktapeauthority.c
+@@ -1035,7 +1035,7 @@ js_polkit_user_is_in_netgroup (duk_context *cx)
+
+   user = duk_require_string (cx, 0);
+   netgroup = duk_require_string (cx, 1);
+-
++#ifdef HAVE_SETNETGRENT
+   if (innetgr (netgroup,
+                NULL,  /* host */
+                user,
+@@ -1043,7 +1043,7 @@ js_polkit_user_is_in_netgroup (duk_context *cx)
+     {
+       is_in_netgroup = TRUE;
+     }
+-
++#endif
+   duk_push_boolean (cx, is_in_netgroup);
+   return 1;
+ }