Description: SILC Secure Internet Live Conferencing
Keywords: SILC, secure, chat, protocol, cipher, encrypt, SKE

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Function silc_asn1_encode SYNOPSIS
        SilcBool silc_asn1_encode(SilcAsn1 asn1, SilcBuffer dest, ...);
DESCRIPTION
        Encodes ASN.1 encoded buffer into `dest', from variable argument
        list of ASN.1 types.  The variable argument list forms the ASN.1
        trees and nodes that are encoded into the `dest'.  By default, the
        memory for `dest' is allocated from the `asn1', and the buffer becomes
        invalid either by calling silc_asn1_free, silc_asn1_uninit, or when
        silc_asn1_encode is called for the next time.

        If the SILC_ASN1_OPTS macro with SILC_ASN1_ALLOC option is given then
        the `dest' is dynamically allocated and caller must free it by itself.
        Alternatively if SILC_ASN1_ACCUMUL is given then memory is accumulated
        from `asn1' for `dest' and it is freed only when silc_asn1_free or
        silc_asn1_uninit is called.  Next call to silc_asn1_encode will not
        cancel the previous result, but will accumulate more memory for new
        result.

        The variable argument list is constructed by using various
        macros, for example SILC_ASN1_SEQUENCE, etc.  The variable argument
        list must always be ended with SILC_ASN1_END type.

        If encoding is successful this returns TRUE, FALSE on error.
EXAMPLE
        silc_asn1_encode(asn1, buf,
                         SILC_ASN1_SEQUENCE,
                           SILC_ASN1_BOOLEAN(bool_val),
                           SILC_ASN1_OCTET_STRING(string, string_len),
                           SILC_ASN1_SEQUENCE_T(0, 2),
                             SILC_ASN1_BOOLEAN_T(SILC_ASN1_EXPLICIT, 100, foo),
                           SILC_ASN1_END,
                           SILC_ASN1_OCTET_STRING_T(0, 1, string2, string2_len),
                         SILC_ASN1_END, SILC_ASN1_END);

        Creates ASN.1 tree that looks something like:

        buf ::= SEQUENCE {
          bool_val      BOOLEAN,
          string        OCTET-STRING,
                   [2]  SEQUENCE {
                          foo   [100] EXPLICIT BOOLEAN }
          string2  [1]  OCTET-STRING }
ASN.1 Interface SilcAsn1 SilcAsn1Struct SilcAsn1Options SilcAsn1Tag silc_asn1_alloc silc_asn1_free silc_asn1_init silc_asn1_uninit silc_asn1_encode silc_asn1_decode SILC_ASN1_OPTS SILC_ASN1_ANY SILC_ASN1_ANY_PRIMITIVE SILC_ASN1_SEQUENCE SILC_ASN1_SET SILC_ASN1_SEQUENCE_OF SILC_ASN1_SET_OF SILC_ASN1_CHOICE SILC_ASN1_BOOLEAN SILC_ASN1_INT SILC_ASN1_SHORT_INT SILC_ASN1_ENUM SILC_ASN1_BIT_STRING SILC_ASN1_NULL SILC_ASN1_OID SILC_ASN1_OCTET_STRING SILC_ASN1_UTF8_STRING SILC_ASN1_NUMERIC_STRING SILC_ASN1_PRINTABLE_STRING SILC_ASN1_TELETEX_STRING SILC_ASN1_IA5_STRING SILC_ASN1_VISIBLE_STRING SILC_ASN1_UNIVERSAL_STRING SILC_ASN1_BMP_STRING SILC_ASN1_UNRESTRICTED_STRING SILC_ASN1_GENERAL_STRING SILC_ASN1_UTC_TIME SILC_ASN1_GEN_TIME SILC_ASN1_END

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