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Make x509_crl_parse() iterative

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Manuel Pégourié-Gonnard 2014-11-19 19:05:03 +01:00
parent 426d4ae7ff
commit 6ed2d92629
1 changed files with 37 additions and 35 deletions
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72
library/x509_crl.c
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@ -489,52 +489,54 @@ int x509_crl_parse_der( x509_crl *chain,
*/
int x509_crl_parse( x509_crl *chain, const unsigned char *buf, size_t buflen )
{
#if defined(POLARSSL_PEM_PARSE_C)
int ret;
size_t use_len;
pem_context pem;
int is_pem = 0;
if( chain == NULL || buf == NULL )
return( POLARSSL_ERR_X509_BAD_INPUT_DATA );
#if defined(POLARSSL_PEM_PARSE_C)
size_t use_len;
pem_context pem;
pem_init( &pem );
ret = pem_read_buffer( &pem,
"-----BEGIN X509 CRL-----",
"-----END X509 CRL-----",
buf, NULL, 0, &use_len );
if( ret == 0 )
do
{
/*
* Was PEM encoded
*/
buflen -= use_len;
buf += use_len;
pem_init( &pem );
ret = pem_read_buffer( &pem,
"-----BEGIN X509 CRL-----",
"-----END X509 CRL-----",
buf, NULL, 0, &use_len );
if( ( ret = x509_crl_parse_der( chain, pem.buf, pem.buflen ) ) != 0 )
if( ret == 0 )
{
/*
* Was PEM encoded
*/
is_pem = 1;
buflen -= use_len;
buf += use_len;
if( ( ret = x509_crl_parse_der( chain,
pem.buf, pem.buflen ) ) != 0 )
{
return( ret );
}
pem_free( &pem );
}
else if( ret != POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
pem_free( &pem );
return( ret );
}
}
while( is_pem && buflen > 0 );
pem_free( &pem );
}
else if( ret != POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
pem_free( &pem );
return( ret );
}
if( is_pem )
return( 0 );
else
#endif /* POLARSSL_PEM_PARSE_C */
{
if( ( ret = x509_crl_parse_der( chain, buf, buflen ) ) != 0 )
return( ret );
buflen = 0;
}
if( buflen > 0 )
return( x509_crl_parse( chain, buf, buflen ) );
return( 0 );
return( x509_crl_parse_der( chain, buf, buflen ) );
}
#if defined(POLARSSL_FS_IO)