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Implement max_frag_len write restriction

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Manuel Pégourié-Gonnard 2013-07-16 15:43:17 +02:00
parent 0df6b1f068
commit 787b658bb3
2 changed files with 16 additions and 10 deletions
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4
library/ssl_tls.c
View File

@ -3416,8 +3416,8 @@ int ssl_write( ssl_context *ssl, const unsigned char *buf, size_t len )
}
}
n = ( len < SSL_MAX_CONTENT_LEN )
? len : SSL_MAX_CONTENT_LEN;
n = ( len < ssl->max_frag_len )
? len : ssl->max_frag_len;
if( ssl->out_left != 0 )
{

22
programs/ssl/ssl_client2.c
View File

@ -59,7 +59,10 @@
#define DFL_AUTH_MODE SSL_VERIFY_OPTIONAL
#define DFL_MFL_CODE SSL_MAX_FRAG_LEN_NONE
#define GET_REQUEST "GET %s HTTP/1.0\r\n\r\n"
/* Uncomment to test sending long paquets */
#define LONG_HEADER // "User-agent: blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-END\r\n"
#define GET_REQUEST "GET %s HTTP/1.0\r\n" LONG_HEADER "\r\n"
/*
* global options
@ -201,7 +204,7 @@ int main( int argc, char *argv[] )
#else
int main( int argc, char *argv[] )
{
int ret = 0, len, server_fd, i;
int ret = 0, len, server_fd, i, written;
unsigned char buf[1024];
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED)
unsigned char psk[256];
@ -702,17 +705,20 @@ int main( int argc, char *argv[] )
len = sprintf( (char *) buf, GET_REQUEST, opt.request_page );
while( ( ret = ssl_write( &ssl, buf, len ) ) <= 0 )
for( written = 0; written < len; written += ret )
{
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
while( ( ret = ssl_write( &ssl, buf + written, len - written ) ) <= 0 )
{
printf( " failed\n ! ssl_write returned -0x%x\n\n", -ret );
goto exit;
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_write returned -0x%x\n\n", -ret );
goto exit;
}
}
}
len = ret;
printf( " %d bytes written\n\n%s", len, (char *) buf );
buf[written] = '\0';
printf( " %d bytes written\n\n%s\n", written, (char *) buf );
/*
* 7. Read the HTTP response