--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nss/lib/util/secder.h	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,174 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _SECDER_H_
+#define _SECDER_H_
+
+#include "utilrename.h"
+
+/*
+ * secder.h - public data structures and prototypes for the DER encoding and
+ *	      decoding utilities library
+ */
+
+#include <time.h>
+
+#include "plarena.h"
+#include "prlong.h"
+
+#include "seccomon.h"
+#include "secdert.h"
+#include "prtime.h"
+
+SEC_BEGIN_PROTOS
+
+/*
+** Encode a data structure into DER.
+**	"dest" will be filled in (and memory allocated) to hold the der
+**	   encoded structure in "src"
+**	"t" is a template structure which defines the shape of the
+**	   stored data
+**	"src" is a pointer to the structure that will be encoded
+*/
+extern SECStatus DER_Encode(PLArenaPool *arena, SECItem *dest, DERTemplate *t,
+			   void *src);
+
+extern SECStatus DER_Lengths(SECItem *item, int *header_len_p,
+                             PRUint32 *contents_len_p);
+
+/*
+** Lower level der subroutine that stores the standard header into "to".
+** The header is of variable length, based on encodingLen.
+** The return value is the new value of "to" after skipping over the header.
+**	"to" is where the header will be stored
+**	"code" is the der code to write
+**	"encodingLen" is the number of bytes of data that will follow
+**	   the header
+*/
+extern unsigned char *DER_StoreHeader(unsigned char *to, unsigned int code,
+				      PRUint32 encodingLen);
+
+/*
+** Return the number of bytes it will take to hold a der encoded length.
+*/
+extern int DER_LengthLength(PRUint32 len);
+
+/*
+** Store a der encoded *signed* integer (whose value is "src") into "dst".
+** XXX This should really be enhanced to take a long.
+*/
+extern SECStatus DER_SetInteger(PLArenaPool *arena, SECItem *dst, PRInt32 src);
+
+/*
+** Store a der encoded *unsigned* integer (whose value is "src") into "dst".
+** XXX This should really be enhanced to take an unsigned long.
+*/
+extern SECStatus DER_SetUInteger(PLArenaPool *arena, SECItem *dst, PRUint32 src);
+
+/*
+** Decode a der encoded *signed* integer that is stored in "src".
+** If "-1" is returned, then the caller should check the error in
+** XP_GetError() to see if an overflow occurred (SEC_ERROR_BAD_DER).
+*/
+extern long DER_GetInteger(const SECItem *src);
+
+/*
+** Decode a der encoded *unsigned* integer that is stored in "src".
+** If the ULONG_MAX is returned, then the caller should check the error
+** in XP_GetError() to see if an overflow occurred (SEC_ERROR_BAD_DER).
+*/
+extern unsigned long DER_GetUInteger(SECItem *src);
+
+/*
+** Convert an NSPR time value to a der encoded time value.
+**	"result" is the der encoded time (memory is allocated)
+**	"time" is the NSPR time value (Since Jan 1st, 1970).
+**      time must be on or after January 1, 1950, and
+**      before January 1, 2050
+** The caller is responsible for freeing up the buffer which
+** result->data points to upon a successful operation.
+*/
+extern SECStatus DER_TimeToUTCTime(SECItem *result, PRTime time);
+extern SECStatus DER_TimeToUTCTimeArena(PLArenaPool* arenaOpt,
+                                        SECItem *dst, PRTime gmttime);
+
+
+/*
+** Convert an ascii encoded time value (according to DER rules) into
+** an NSPR time value.
+**	"result" the resulting NSPR time
+**	"string" the der notation ascii value to decode
+*/
+extern SECStatus DER_AsciiToTime(PRTime *result, const char *string);
+
+/*
+** Same as DER_AsciiToTime except takes an SECItem instead of a string
+*/
+extern SECStatus DER_UTCTimeToTime(PRTime *result, const SECItem *time);
+
+/*
+** Convert a DER encoded UTC time to an ascii time representation
+** "utctime" is the DER encoded UTC time to be converted. The
+** caller is responsible for deallocating the returned buffer.
+*/
+extern char *DER_UTCTimeToAscii(SECItem *utcTime);
+
+/*
+** Convert a DER encoded UTC time to an ascii time representation, but only
+** include the day, not the time.
+**	"utctime" is the DER encoded UTC time to be converted.
+** The caller is responsible for deallocating the returned buffer.
+*/
+extern char *DER_UTCDayToAscii(SECItem *utctime);
+/* same thing for DER encoded GeneralizedTime */
+extern char *DER_GeneralizedDayToAscii(SECItem *gentime);
+/* same thing for either DER UTCTime or GeneralizedTime */
+extern char *DER_TimeChoiceDayToAscii(SECItem *timechoice);
+
+/*
+** Convert a PRTime to a DER encoded Generalized time
+** gmttime must be on or after January 1, year 1 and
+** before January 1, 10000.
+*/
+extern SECStatus DER_TimeToGeneralizedTime(SECItem *dst, PRTime gmttime);
+extern SECStatus DER_TimeToGeneralizedTimeArena(PLArenaPool* arenaOpt,
+                                                SECItem *dst, PRTime gmttime);
+
+/*
+** Convert a DER encoded Generalized time value into an NSPR time value.
+**	"dst" the resulting NSPR time
+**	"string" the der notation ascii value to decode
+*/
+extern SECStatus DER_GeneralizedTimeToTime(PRTime *dst, const SECItem *time);
+
+/*
+** Convert from a PRTime UTC time value to a formatted ascii value. The
+** caller is responsible for deallocating the returned buffer.
+*/
+extern char *CERT_UTCTime2FormattedAscii (PRTime utcTime, char *format);
+#define CERT_GeneralizedTime2FormattedAscii CERT_UTCTime2FormattedAscii
+
+/*
+** Convert from a PRTime Generalized time value to a formatted ascii value. The
+** caller is responsible for deallocating the returned buffer.
+*/
+extern char *CERT_GenTime2FormattedAscii (PRTime genTime, char *format);
+
+/*
+** decode a SECItem containing either a SEC_ASN1_GENERALIZED_TIME 
+** or a SEC_ASN1_UTC_TIME
+*/
+
+extern SECStatus DER_DecodeTimeChoice(PRTime* output, const SECItem* input);
+
+/* encode a PRTime to an ASN.1 DER SECItem containing either a
+   SEC_ASN1_GENERALIZED_TIME or a SEC_ASN1_UTC_TIME */
+
+extern SECStatus DER_EncodeTimeChoice(PLArenaPool* arena, SECItem* output,
+                                       PRTime input);
+
+SEC_END_PROTOS
+
+#endif /* _SECDER_H_ */
+