asn.c File Reference

#include "precomp.h"

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Functions
RD_BOOL	ber_parse_header (STREAM s, int tagval, int *length)
void	ber_out_header (STREAM s, int tagval, int length)
void	ber_out_integer (STREAM s, int value)
RD_BOOL	ber_in_header (STREAM s, int *tagval, int *decoded_len)

Function Documentation

ber_in_header()

RD_BOOL ber_in_header	(	STREAM	s,
		int *	tagval,
		int *	decoded_len
	)

Definition at line 90 of file asn.c.

{
    in_uint8(s, *tagval);
    in_uint8(s, *decoded_len);
 
    if (*decoded_len < 0x80)
        return True;
    else if (*decoded_len == 0x81)
    {
        in_uint8(s, *decoded_len);
        return True;
    }
    else if (*decoded_len == 0x82)
    {
        in_uint16_be(s, *decoded_len);
        return True;
    }
 
    return False;
}

ber_out_header()

void ber_out_header	(	STREAM	s,
		int	tagval,
		int	length
	)

Definition at line 61 of file asn.c.

{
    if (tagval > 0xff)
    {
        out_uint16_be(s, tagval);
    }
    else
    {
        out_uint8(s, tagval);
    }
 
    if (length >= 0x80)
    {
        out_uint8(s, 0x82);
        out_uint16_be(s, length);
    }
    else
        out_uint8(s, length);
}

Referenced by ber_out_integer(), mcs_out_domain_params(), and mcs_send_connect_initial().

ber_out_integer()

void ber_out_integer	(	STREAM	s,
		int	value
	)

Definition at line 83 of file asn.c.

{
    ber_out_header(s, BER_TAG_INTEGER, 2);
    out_uint16_be(s, value);
}

Referenced by mcs_out_domain_params().

ber_parse_header()

RD_BOOL ber_parse_header	(	STREAM	s,
		int	tagval,
		int *	length
	)

Definition at line 25 of file asn.c.

{
    int tag, len;
 
    if (tagval > 0xff)
    {
        in_uint16_be(s, tag);
    }
    else
    {
        in_uint8(s, tag);
    }
 
    if (tag != tagval)
    {
        error("expected tag %d, got %d\n", tagval, tag);
        return False;
    }
 
    in_uint8(s, len);
 
    if (len & 0x80)
    {
        len &= ~0x80;
        *length = 0;
        while (len--)
            next_be(s, *length);
    }
    else
        *length = len;
 
    return s_check(s);
}

Referenced by mcs_parse_domain_params(), and mcs_recv_connect_response().