1 files changed, 95 insertions, 0 deletions
diff --git a/REORG.TODO/iconv/iconv.c b/REORG.TODO/iconv/iconv.c
new file mode 100644
index 0000000000..2c6f0f0bd1
--- /dev/null
+++ b/REORG.TODO/iconv/iconv.c
@@ -0,0 +1,95 @@
+/* Convert characters in input buffer using conversion descriptor to
+   output buffer.
+   Copyright (C) 1997-2017 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stddef.h> /* for NULL */
+#include <errno.h>
+#include <iconv.h>
+
+#include <gconv_int.h>
+
+#include <assert.h>
+
+
+size_t
+iconv (iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf,
+       size_t *outbytesleft)
+{
+  __gconv_t gcd = (__gconv_t) cd;
+  char *outstart = outbuf ? *outbuf : NULL;
+  size_t irreversible;
+  int result;
+
+  if (__glibc_unlikely (inbuf == NULL || *inbuf == NULL))
+    {
+      if (outbuf == NULL || *outbuf == NULL)
+	result = __gconv (gcd, NULL, NULL, NULL, NULL, &irreversible);
+      else
+	result = __gconv (gcd, NULL, NULL, (unsigned char **) outbuf,
+			  (unsigned char *) (outstart + *outbytesleft),
+			  &irreversible);
+    }
+  else
+    {
+      const char *instart = *inbuf;
+
+      result = __gconv (gcd, (const unsigned char **) inbuf,
+			(const unsigned char *)  (*inbuf + *inbytesleft),
+			(unsigned char **) outbuf,
+			(unsigned char *) (*outbuf + *outbytesleft),
+			&irreversible);
+
+      *inbytesleft -= *inbuf - instart;
+    }
+  if (outstart != NULL)
+    *outbytesleft -= *outbuf - outstart;
+
+  switch (__builtin_expect (result, __GCONV_OK))
+    {
+    case __GCONV_ILLEGAL_DESCRIPTOR:
+      __set_errno (EBADF);
+      irreversible = (size_t) -1L;
+      break;
+
+    case __GCONV_ILLEGAL_INPUT:
+      __set_errno (EILSEQ);
+      irreversible = (size_t) -1L;
+      break;
+
+    case __GCONV_FULL_OUTPUT:
+      __set_errno (E2BIG);
+      irreversible = (size_t) -1L;
+      break;
+
+    case __GCONV_INCOMPLETE_INPUT:
+      __set_errno (EINVAL);
+      irreversible = (size_t) -1L;
+      break;
+
+    case __GCONV_EMPTY_INPUT:
+    case __GCONV_OK:
+      /* Nothing.  */
+      break;
+
+    default:
+      assert (!"Nothing like this should happen");
+    }
+
+  return irreversible;
+}