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Doxygen documentation added to asn1write.h

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This commit is contained in:
Paul Bakker 2013-08-26 17:34:53 +02:00
parent f3df61ad10
commit 7accbced87
2 changed files with 142 additions and 3 deletions
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141
include/polarssl/asn1write.h
View File

@ -35,23 +35,162 @@
extern "C" {
#endif
/**
* \brief Write a length field in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param len the length to write
*
* \return the length written or a negative error code
*/
int asn1_write_len( unsigned char **p, unsigned char *start, size_t len );
/**
* \brief Write a ASN.1 tag in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param tag the tag to write
*
* \return the length written or a negative error code
*/
int asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag );
#if defined(POLARSSL_BIGNUM_C)
/**
* \brief Write a big number (ASN1_INTEGER) in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param X the MPI to write
*
* \return the length written or a negative error code
*/
int asn1_write_mpi( unsigned char **p, unsigned char *start, mpi *X );
#endif
/**
* \brief Write a NULL tag (ASN1_NULL) with zero data in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
*
* \return the length written or a negative error code
*/
int asn1_write_null( unsigned char **p, unsigned char *start );
/**
* \brief Write an OID tag (ASN1_OID) and data in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param oid the OID to write
*
* \return the length written or a negative error code
*/
int asn1_write_oid( unsigned char **p, unsigned char *start, const char *oid );
int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start, const char *algorithm_oid );
/**
* \brief Write an AlgorithmIdentifier sequence in ASN.1 format
* Note: function works backwards in data buffer
* Note: Uses NULL as algorithm parameter
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param oid the OID of the algorithm
*
* \return the length written or a negative error code
*/
int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
const char *oid );
/**
* \brief Write an int tag (ASN1_INTEGER) and value in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param val the integer value
*
* \return the length written or a negative error code
*/
int asn1_write_int( unsigned char **p, unsigned char *start, int val );
/**
* \brief Write a printable string tag (ASN1_PRINTABLE_STRING) and
* value in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param text the text to write
*
* \return the length written or a negative error code
*/
int asn1_write_printable_string( unsigned char **p, unsigned char *start,
char *text );
/**
* \brief Write an IA5 string tag (ASN1_IA5_STRING) and
* value in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param text the text to write
*
* \return the length written or a negative error code
*/
int asn1_write_ia5_string( unsigned char **p, unsigned char *start,
char *text );
/**
* \brief Write a bitstring tag (ASN1_BIT_STRING) and
* value in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param buf the bitstring
* \param bits the total number of bits in the bitstring
*
* \return the length written or a negative error code
*/
int asn1_write_bitstring( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t bits );
/**
* \brief Write an octet string tag (ASN1_OCTET_STRING) and
* value in ASN.1 format
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param buf data buffer to write
* \param size length of the data buffer
*
* \return the length written or a negative error code
*/
int asn1_write_octet_string( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size );
/**
* \brief Write raw buffer data
* Note: function works backwards in data buffer
*
* \param p reference to current position pointer
* \param start start of the buffer (for bounds-checking)
* \param buf data buffer to write
* \param size length of the data buffer
*
* \return the length written or a negative error code
*/
int asn1_write_raw_buffer( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size );

4
library/asn1write.c
View File

@ -142,7 +142,7 @@ int asn1_write_oid( unsigned char **p, unsigned char *start, const char *oid )
}
int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
const char *algorithm_oid )
const char *oid )
{
int ret;
size_t null_len = 0;
@ -155,7 +155,7 @@ int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
// Write OID
//
ASN1_CHK_ADD( oid_len, asn1_write_oid( p, start, algorithm_oid ) );
ASN1_CHK_ADD( oid_len, asn1_write_oid( p, start, oid ) );
len = oid_len + null_len;
ASN1_CHK_ADD( len, asn1_write_len( p, start, oid_len + null_len ) );