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Fix unreachable code warnings with armc5

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Some TLS-only code paths were not protected by an #ifdef and while some
compiler are happy to just silently remove them, armc5 complains:

Warning:  #111-D: statement is unreachable

Let's make armc5 happy.
This commit is contained in:
Manuel Pégourié-Gonnard 2019-06-18 10:56:09 +02:00
parent 19e8132e1e
commit 889bbc70b6
2 changed files with 36 additions and 16 deletions
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5
include/mbedtls/ssl_internal.h
View file

@ -969,8 +969,11 @@ static inline size_t mbedtls_ssl_hs_hdr_len( const mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( MBEDTLS_SSL_TRANSPORT_IS_DTLS( ssl->conf->transport ) )
return( 12 );
MBEDTLS_SSL_TRANSPORT_ELSE
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS)
return( 4 );
#endif
return( 4 );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)

47
library/ssl_tls.c
View file

@ -68,8 +68,11 @@ static inline size_t ssl_ep_len( const mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( MBEDTLS_SSL_TRANSPORT_IS_DTLS( ssl->conf->transport ) )
return( 2 );
MBEDTLS_SSL_TRANSPORT_ELSE
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS)
return( 0 );
#endif
}
/*
@ -8598,25 +8601,29 @@ const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl )
return( "unknown (DTLS)" );
}
}
#endif
switch( ssl->minor_ver )
MBEDTLS_SSL_TRANSPORT_ELSE
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_SSL_PROTO_TLS)
{
case MBEDTLS_SSL_MINOR_VERSION_0:
return( "SSLv3.0" );
switch( ssl->minor_ver )
{
case MBEDTLS_SSL_MINOR_VERSION_0:
return( "SSLv3.0" );
case MBEDTLS_SSL_MINOR_VERSION_1:
return( "TLSv1.0" );
case MBEDTLS_SSL_MINOR_VERSION_1:
return( "TLSv1.0" );
case MBEDTLS_SSL_MINOR_VERSION_2:
return( "TLSv1.1" );
case MBEDTLS_SSL_MINOR_VERSION_2:
return( "TLSv1.1" );
case MBEDTLS_SSL_MINOR_VERSION_3:
return( "TLSv1.2" );
case MBEDTLS_SSL_MINOR_VERSION_3:
return( "TLSv1.2" );
default:
return( "unknown" );
default:
return( "unknown" );
}
}
#endif /* MBEDTLS_SSL_PROTO_TLS */
}
int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl )
@ -9610,8 +9617,13 @@ int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
{
continue;
}
MBEDTLS_SSL_TRANSPORT_ELSE
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS)
{
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#endif
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#endif /* MBEDTLS_SSL_CLI_C */
@ -9627,8 +9639,13 @@ int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
{
continue;
}
MBEDTLS_SSL_TRANSPORT_ELSE
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS)
{
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#endif
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#endif /* MBEDTLS_SSL_SRV_C */