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Changed main buf to be allocated from heap in ssl_client2

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This commit is contained in:
Teppo Järvelin 2019-10-21 10:33:11 +03:00
parent 8e0fe19a6a
commit 8e0e48199b
1 changed files with 16 additions and 7 deletions
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23
programs/ssl/ssl_client2.c
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@ -935,7 +935,8 @@ int main( int argc, char *argv[] )
io_ctx_t io_ctx;
#endif
unsigned char buf[MAX_REQUEST_SIZE + 1];
unsigned char *buf = NULL;
unsigned int main_buf_len = 0;
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
unsigned char psk[MBEDTLS_PSK_MAX_LEN];
@ -1521,6 +1522,13 @@ int main( int argc, char *argv[] )
goto usage;
}
main_buf_len = MAX_REQUEST_SIZE + 1;
buf = mbedtls_calloc( 1, MAX_REQUEST_SIZE + 1 );
if( buf == NULL ) {
mbedtls_printf( "buf allocation failed!\n" );
goto exit;
}
/* Event-driven IO is incompatible with the above custom
* receive and send functions, as the polling builds on
* refers to the underlying net_context. */
@ -2449,7 +2457,7 @@ send_request:
mbedtls_printf( " > Write to server:" );
fflush( stdout );
len = mbedtls_snprintf( (char *) buf, sizeof( buf ) - 1, GET_REQUEST,
len = mbedtls_snprintf( (char *) buf, main_buf_len - 1, GET_REQUEST,
opt.request_page );
tail_len = (int) strlen( GET_REQUEST_END );
@ -2461,7 +2469,7 @@ send_request:
len += opt.request_size - len - tail_len;
}
strncpy( (char *) buf + len, GET_REQUEST_END, sizeof( buf ) - len - 1 );
strncpy( (char *) buf + len, GET_REQUEST_END, main_buf_len - len - 1 );
len += tail_len;
/* Truncate if request size is smaller than the "natural" size */
@ -2577,8 +2585,8 @@ send_request:
{
do
{
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
len = main_buf_len - 1;
memset( buf, 0, main_buf_len );
ret = mbedtls_ssl_read( ssl, buf, len );
#if defined(MBEDTLS_ECP_RESTARTABLE)
@ -2639,8 +2647,8 @@ send_request:
}
else /* Not stream, so datagram */
{
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
len = main_buf_len - 1;
memset( buf, 0, main_buf_len );
while( 1 )
{
@ -2994,6 +3002,7 @@ exit:
mbedtls_free( ssl );
mbedtls_free( conf );
mbedtls_free( entropy );
mbedtls_free( buf );
#if defined(MBEDTLS_CTR_DRBG_C)
mbedtls_free( ctr_drbg );
#else