lib/mbedtls
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Fix ecp_tls_read_point's signature

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This commit is contained in:
Manuel Pégourié-Gonnard
2013-02-10 13:38:29 +01:00
parent 7c145c6418
commit 98f51815d6
3 changed files with 28 additions and 11 deletions
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13
library/ecp.c
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@ -271,9 +271,10 @@ cleanup:
* } ECPoint;
*/
int ecp_tls_read_point( const ecp_group *grp, ecp_point *pt,
const unsigned char *buf, size_t buf_len )
const unsigned char **buf, size_t buf_len )
{
unsigned char data_len;
const unsigned char *buf_start;
/*
* We must have at least two bytes (1 for length, at least of for data)
@ -281,11 +282,17 @@ int ecp_tls_read_point( const ecp_group *grp, ecp_point *pt,
if( buf_len < 2 )
return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
data_len = *buf++;
data_len = *(*buf)++;
if( data_len < 1 || data_len > buf_len - 1 )
return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
return ecp_point_read_binary( grp, pt, buf, data_len );
/*
* Save buffer start for read_binary and update buf
*/
buf_start = *buf;
*buf += data_len;
return ecp_point_read_binary( grp, pt, buf_start, data_len );
}
/*