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-rw-r--r--iconv/gconv_close.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/iconv/gconv_close.c b/iconv/gconv_close.c
new file mode 100644
index 0000000000..d3d023f488
--- /dev/null
+++ b/iconv/gconv_close.c
@@ -0,0 +1,64 @@
+/* Release any resource associated with given conversion descriptor.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C 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.
+
+   The GNU C 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 the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+#include <stdlib.h>
+
+
+int
+__gconv_close (gconv_t cd)
+{
+  struct gconv_step *srunp;
+  struct gconv_step_data *drunp;
+  size_t nsteps;
+
+  /* Free all resources by calling destructor functions and release
+     the implementations.  */
+  srunp = cd->steps;
+  nsteps = cd->nsteps;
+  drunp = cd->data;
+  do
+    {
+      /* Call destructor.  */
+      if (srunp->end_fct != NULL)
+	(*srunp->end_fct) (drunp);
+      else
+	{
+	  free (drunp->outbuf);
+	  if (drunp->data != NULL)
+	    free (drunp->data);
+	}
+
+      /* Next step.  */
+      ++srunp;
+      ++drunp;
+    }
+  while (!drunp->is_last);
+
+  /* Save the pointer, we need it below.  */
+  srunp = cd->steps;
+
+  /* Free the data allocated for the descriptor.  */
+  free (cd->data);
+  free (cd);
+
+  /* Close the participating modules.  */
+  return __gconv_close_transform (srunp, nsteps);
+}