1 files changed, 57 insertions, 0 deletions
diff --git a/libc/pwd_grp/grent.c b/libc/pwd_grp/grent.c
new file mode 100644
index 000000000..19d618b2b
--- /dev/null
+++ b/libc/pwd_grp/grent.c
@@ -0,0 +1,57 @@
+/*
+ * grent.c - This file is part of the libc-8086/grp package for ELKS,
+ * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
+ * 
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*
+ * setgrent(), endgrent(), and getgrent() are mutually-dependent functions,
+ * so they are all included in the same object file, and thus all linked
+ * in together.
+ */
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <grp.h>
+
+static int grp_fd=-1;
+
+void
+setgrent(void)
+{
+  if (grp_fd!=-1)
+    close(grp_fd);
+  grp_fd=open("/etc/group", O_RDONLY);
+}
+
+void
+endgrent(void)
+{
+ if (grp_fd!=-1)
+   close(grp_fd);
+ grp_fd=-1;
+}
+
+struct group *
+getgrent(void)
+{
+  if (grp_fd==-1)
+    return NULL;
+  return __getgrent(grp_fd);
+}
+
+