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getgrgid

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Motiejus Jakštys 2022-04-19 10:08:37 +03:00 committed by Motiejus Jakštys
parent d4ba5a9a58
commit 3eeb0a8332
1 changed files with 14 additions and 0 deletions
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14
lib/DB.zig
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@ -276,6 +276,15 @@ fn getgrnam(self: *const DB, name: []const u8, buf: *[]u8) error{OutOfMemory}!?C
return try self.getGroup(group, buf);
}
// get a CGroup entry by it's gid.
fn getgrgid(self: *const DB, gid: u32, buf: *[]u8) error{OutOfMemory}!?CGroup {
const idx = bdz.search_u32(self.bdz_gid, gid);
const offset = self.idx_gid2group[idx];
const group = PackedGroup.fromBytes(self.groups[offset << 3 ..]).group;
if (gid != group.gid()) return null;
return try self.getGroup(group, buf);
}
fn shellSections(
allocator: Allocator,
corpus: *const Corpus,
@ -610,6 +619,11 @@ test "high-level API" {
try testing.expectEqual(cgroup.name[1], 'l');
try testing.expectEqual(cgroup.name[2], 'l');
try testing.expectEqual(cgroup.name[3], 0);
const all_gid = try db.getgrgid(9999, &buf);
try testing.expect(all_gid != null);
try testing.expectEqual(all_gid.?.gid, 9999);
try testing.expectEqualStrings(mem.sliceTo(all_gid.?.name, 0), "all");
}
test "getgr_bufsize" {