1 files changed, 63 insertions, 0 deletions
diff --git a/inet/ether_aton_r.c b/inet/ether_aton_r.c
new file mode 100644
index 0000000000..4b38f034cc
--- /dev/null
+++ b/inet/ether_aton_r.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+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 <ctype.h>
+#include <stdlib.h>
+#include <netinet/ether.h>
+#include <netinet/if_ether.h>
+
+
+struct ether_addr *
+ether_aton_r (const char *asc, struct ether_addr *addr)
+{
+  size_t cnt;
+
+  for (cnt = 0; cnt < 6; ++cnt)
+    {
+      unsigned int number;
+      char ch;
+
+      ch = tolower (*asc++);
+      if ((ch < '0' || ch > '9') && (ch < 'a' || ch > 'f'))
+	return NULL;
+      number = isdigit (ch) ? (ch - '0') : (ch - 'a' + 10);
+
+      ch = tolower (*asc);
+      if ((cnt < 5 && ch != ':') || (cnt == 5 && ch != '\0' && !isspace (ch)))
+	{
+	  ++asc;
+	  if ((ch < '0' || ch > '9') && (ch < 'a' || ch > 'f'))
+	    return NULL;
+	  number <<= 4;
+	  number = isdigit (ch) ? (ch - '0') : (ch - 'a' + 10);
+
+	  ch = *asc;
+	  if (cnt < 5 && ch != ':')
+	    return NULL;
+	}
+
+      /* Store result.  */
+      addr->ether_addr_octet[cnt] = (unsigned char) number;
+
+      /* Skip ':'.  */
+      ++asc;
+    }
+
+  return addr;
+}