Initial NSS Open Source checkin

1 files changed, 124 insertions, 0 deletions

diff --git a/security/nss/lib/util/nssb64.h b/security/nss/lib/util/nssb64.h
new file mode 100644
index 000000000..4430891e4
--- /dev/null
+++ b/security/nss/lib/util/nssb64.h
@@ -0,0 +1,124 @@
+/*
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Netscape security libraries.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1994-2000 Netscape Communications Corporation.  All
+ * Rights Reserved.
+ * 
+ * Contributor(s):
+ * 
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License Version 2 or later (the
+ * "GPL"), in which case the provisions of the GPL are applicable 
+ * instead of those above.  If you wish to allow use of your 
+ * version of this file only under the terms of the GPL and not to
+ * allow others to use your version of this file under the MPL,
+ * indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by
+ * the GPL.  If you do not delete the provisions above, a recipient
+ * may use your version of this file under either the MPL or the
+ * GPL.
+ */
+
+/*
+ * Public prototypes for base64 encoding/decoding.
+ *
+ * $Id$
+ */
+#ifndef _NSSB64_H_
+#define _NSSB64_H_
+
+#include "seccomon.h"
+#include "nssb64t.h"
+
+SEC_BEGIN_PROTOS
+
+/*
+ * Functions to start a base64 decoding/encoding context.
+ */
+
+extern NSSBase64Decoder *
+NSSBase64Decoder_Create (PRInt32 (*output_fn) (void *, const unsigned char *,
+					       PRInt32),
+			 void *output_arg);
+
+extern NSSBase64Encoder *
+NSSBase64Encoder_Create (PRInt32 (*output_fn) (void *, const char *, PRInt32),
+			 void *output_arg);
+
+/*
+ * Push data through the decoder/encoder, causing the output_fn (provided
+ * to Create) to be called with the decoded/encoded data.
+ */
+
+extern SECStatus
+NSSBase64Decoder_Update (NSSBase64Decoder *data, const char *buffer,
+			 PRUint32 size);
+
+extern SECStatus
+NSSBase64Encoder_Update (NSSBase64Encoder *data, const unsigned char *buffer,
+			 PRUint32 size);
+
+/*
+ * When you're done processing, call this to close the context.
+ * If "abort_p" is false, then calling this may cause the output_fn
+ * to be called one last time (as the last buffered data is flushed out).
+ */
+
+extern SECStatus
+NSSBase64Decoder_Destroy (NSSBase64Decoder *data, PRBool abort_p);
+
+extern SECStatus
+NSSBase64Encoder_Destroy (NSSBase64Encoder *data, PRBool abort_p);
+
+/*
+ * Perform base64 decoding from an ascii string "inStr" to an Item.
+ * The length of the input must be provided as "inLen".  The Item
+ * may be provided (as "outItemOpt"); you can also pass in a NULL
+ * and the Item will be allocated for you.
+ *
+ * In any case, the data within the Item will be allocated for you.
+ * All allocation will happen out the passed-in "arenaOpt", if non-NULL.
+ * If "arenaOpt" is NULL, standard allocation (heap) will be used and
+ * you will want to free the result via SECITEM_FreeItem.
+ *
+ * Return value is NULL on error, the Item (allocated or provided) otherwise.
+ */
+extern SECItem *
+NSSBase64_DecodeBuffer (PRArenaPool *arenaOpt, SECItem *outItemOpt,
+			const char *inStr, unsigned int inLen);
+
+/*
+ * Perform base64 decoding of binary data "inItem" to an ascii string.
+ * The output buffer may be provided (as "outStrOpt"); you can also pass
+ * in a NULL and the buffer will be allocated for you.  The result will
+ * be null-terminated, and if the buffer is provided, "maxOutLen" must
+ * specify the maximum length of the buffer and will be checked to
+ * supply sufficient space space for the encoded result.  (If "outStrOpt"
+ * is NULL, "maxOutLen" is ignored.)
+ *
+ * If "outStrOpt" is NULL, allocation will happen out the passed-in
+ * "arenaOpt", if *it* is non-NULL, otherwise standard allocation (heap)
+ * will be used.
+ *
+ * Return value is NULL on error, the output buffer (allocated or provided)
+ * otherwise.
+ */
+extern char *
+NSSBase64_EncodeItem (PRArenaPool *arenaOpt, char *outStrOpt,
+		      unsigned int maxOutLen, SECItem *binaryItem);
+
+SEC_END_PROTOS
+
+#endif /* _NSSB64_H_ */