static int x509_write_extension( unsigned char **p, unsigned char *start,
asn1_named_data *ext )
{
int ret;
size_t len = 0;
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, ext->val.p + 1,
ext->val.len - 1 ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, ext->val.len - 1 ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OCTET_STRING ) );
if( ext->val.p[0] != 0 )
{
ASN1_CHK_ADD( len, asn1_write_bool( p, start, 1 ) );
}
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, ext->oid.p,
ext->oid.len ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, ext->oid.len ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OID ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED | ASN1_SEQUENCE ) );
return( (int) len );
}
static int x509_write_time( unsigned char **p, unsigned char *start,
const char *time, size_t size )
{
int ret;
size_t len = 0;
/*
* write ASN1_UTC_TIME if year < 2050 (2 bytes shorter)
*/
if( time[0] == '2' && time[1] == '0' && time [2] < '5' )
{
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
(const unsigned char *) time + 2,
size - 2 ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_UTC_TIME ) );
}
else
{
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
(const unsigned char *) time,
size ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_GENERALIZED_TIME ) );
}
return( (int) len );
}
int asn1_write_octet_string( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size )
{
int ret;
size_t len = 0;
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, buf, size ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OCTET_STRING ) );
return( (int) len );
}
int asn1_write_oid( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len )
{
int ret;
size_t len = 0;
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
(const unsigned char *) oid, oid_len ) );
ASN1_CHK_ADD( len , asn1_write_len( p, start, len ) );
ASN1_CHK_ADD( len , asn1_write_tag( p, start, ASN1_OID ) );
return( (int) len );
}
int asn1_write_ia5_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len )
{
int ret;
size_t len = 0;
ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
(const unsigned char *) text, text_len ) );
ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_IA5_STRING ) );
return( (int) len );
}