From: Connor McAdams cmcadams@codeweavers.com
v3: Warn when maximum size is reached.
Signed-off-by: Connor McAdams cmcadams@codeweavers.com Signed-off-by: Hans Leidekker hans@codeweavers.com --- dlls/webservices/channel.c | 21 +++++++++++++++------ dlls/webservices/string.c | 5 ++++- dlls/webservices/webservices_private.h | 4 +++- 3 files changed, 22 insertions(+), 8 deletions(-)
diff --git a/dlls/webservices/channel.c b/dlls/webservices/channel.c index 4941844afe5..7dd78335e11 100644 --- a/dlls/webservices/channel.c +++ b/dlls/webservices/channel.c @@ -327,8 +327,8 @@ static void reset_channel( struct channel *channel ) channel->state = WS_CHANNEL_STATE_CREATED; channel->session_state = SESSION_STATE_UNINITIALIZED; clear_addr( &channel->addr ); - clear_dict( &channel->dict_send ); - clear_dict( &channel->dict_recv ); + init_dict( &channel->dict_send, channel->dict_size ); + init_dict( &channel->dict_recv, 0 ); channel->msg = NULL; channel->read_size = 0; channel->send_size = 0; @@ -485,6 +485,7 @@ static HRESULT create_channel( WS_CHANNEL_TYPE type, WS_CHANNEL_BINDING binding, channel->u.tcp.socket = -1; channel->encoding = WS_ENCODING_XML_BINARY_SESSION_1; channel->dict_size = 2048; + channel->dict_send.str_bytes_max = channel->dict_size; break;
case WS_UDP_CHANNEL_BINDING: @@ -544,6 +545,7 @@ static HRESULT create_channel( WS_CHANNEL_TYPE type, WS_CHANNEL_BINDING binding, }
channel->dict_size = *(ULONG *)prop->value; + channel->dict_send.str_bytes_max = channel->dict_size; break;
default: @@ -1615,6 +1617,13 @@ static HRESULT CALLBACK dict_cb( void *state, const WS_XML_STRING *str, BOOL *fo return S_OK; }
+ if (str->length + dict->str_bytes + 1 > dict->str_bytes_max) + { + WARN( "max string bytes exceeded\n" ); + *found = FALSE; + return hr; + } + if (!(bytes = malloc( str->length ))) return E_OUTOFMEMORY; memcpy( bytes, str->bytes, str->length ); if ((hr = insert_string( dict, bytes, str->length, index, id )) == S_OK) @@ -2184,12 +2193,12 @@ static HRESULT build_dict( const BYTE *buf, ULONG buflen, struct dictionary *dic { if ((hr = read_size( &ptr, buflen, &size )) != S_OK) { - clear_dict( dict ); + init_dict( dict, 0 ); return hr; } if (size > buflen) { - clear_dict( dict ); + init_dict( dict, 0 ); return WS_E_INVALID_FORMAT; } buflen -= size; @@ -2208,7 +2217,7 @@ static HRESULT build_dict( const BYTE *buf, ULONG buflen, struct dictionary *dic if ((hr = insert_string( dict, bytes, size, index, NULL )) != S_OK) { free( bytes ); - clear_dict( dict ); + init_dict( dict, 0 ); return hr; } ptr += size; @@ -2216,7 +2225,7 @@ static HRESULT build_dict( const BYTE *buf, ULONG buflen, struct dictionary *dic return S_OK;
error: - clear_dict( dict ); + init_dict( dict, 0 ); return hr; }
diff --git a/dlls/webservices/string.c b/dlls/webservices/string.c index 3ecdcea85a4..34e67101e66 100644 --- a/dlls/webservices/string.c +++ b/dlls/webservices/string.c @@ -131,7 +131,7 @@ static HRESULT grow_dict( struct dictionary *dict, ULONG size ) return S_OK; }
-void clear_dict( struct dictionary *dict ) +void init_dict( struct dictionary *dict, ULONG str_bytes_max ) { ULONG i; assert( !dict->dict.isConst ); @@ -145,6 +145,8 @@ void clear_dict( struct dictionary *dict ) dict->sequence = NULL; dict->current_sequence = 0; dict->size = 0; + dict->str_bytes = 0; + dict->str_bytes_max = str_bytes_max; }
HRESULT insert_string( struct dictionary *dict, unsigned char *data, ULONG len, int i, ULONG *ret_id ) @@ -162,6 +164,7 @@ HRESULT insert_string( struct dictionary *dict, unsigned char *data, ULONG len, dict->dict.strings[id].dictionary = &dict->dict; dict->dict.strings[id].id = id; dict->dict.stringCount++; + dict->str_bytes += len + 1;
dict->sequence[id] = dict->current_sequence;
diff --git a/dlls/webservices/webservices_private.h b/dlls/webservices/webservices_private.h index b352aa52d49..373ab6799a9 100644 --- a/dlls/webservices/webservices_private.h +++ b/dlls/webservices/webservices_private.h @@ -49,13 +49,15 @@ struct dictionary ULONG size; ULONG current_sequence; ULONG *sequence; + ULONG str_bytes; + ULONG str_bytes_max; }; extern struct dictionary dict_builtin DECLSPEC_HIDDEN; extern const struct dictionary dict_builtin_static DECLSPEC_HIDDEN;
int find_string( const struct dictionary *, const unsigned char *, ULONG, ULONG * ) DECLSPEC_HIDDEN; HRESULT insert_string( struct dictionary *, unsigned char *, ULONG, int, ULONG * ) DECLSPEC_HIDDEN; -void clear_dict( struct dictionary * ) DECLSPEC_HIDDEN; +void init_dict( struct dictionary *, ULONG ) DECLSPEC_HIDDEN; HRESULT writer_set_lookup( WS_XML_WRITER *, BOOL ) DECLSPEC_HIDDEN; HRESULT writer_set_dict_callback( WS_XML_WRITER *, WS_DYNAMIC_STRING_CALLBACK, void * ) DECLSPEC_HIDDEN;