[PATCH 5/5] widl: Write the guid stream.

[Hans Leidekker]

From: Hans Leidekker

---
 tools/widl/metadata.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/tools/widl/metadata.c b/tools/widl/metadata.c
index 264b0a2c8bb..92900fbf3c2 100644
--- a/tools/widl/metadata.c
+++ b/tools/widl/metadata.c
@@ -227,7 +227,7 @@ static struct buffer
     UINT  allocated;     /* allocated size in bytes */
     UINT  count;         /* number of entries written */
     BYTE *ptr;
-} strings, strings_idx, userstrings, userstrings_idx, blobs, blobs_idx;
+} strings, strings_idx, userstrings, userstrings_idx, blobs, blobs_idx, guids;

static void *grow_buffer( struct buffer *buf, UINT size )
 {
@@ -399,6 +399,14 @@ static UINT add_blob( const BYTE *blob, UINT size )
     return offset;
 }

+static UINT add_guid( const GUID *guid )
+{
+    grow_buffer( &guids, sizeof(*guid) );
+    memcpy( guids.ptr + guids.offset, guid, sizeof(*guid) );
+    guids.offset += sizeof(*guid);
+    return ++guids.count;
+}
+
 static void add_bytes( struct buffer *buf, const BYTE *data, UINT size )
 {
     grow_buffer( buf, size );
@@ -406,14 +414,25 @@ static void add_bytes( struct buffer *buf, const BYTE *data, UINT size )
     buf->offset += size;
 }

+static void generate_guid( GUID *guid )
+{
+    int fd = open( "/dev/urandom", O_RDONLY );
+    if (fd != -1) read( fd, guid, sizeof(*guid) );
+    close( fd );
+}
+
 static void build_table_stream( const statement_list_t *stmts )
 {
     static const USHORT space = 0x20;
+    GUID guid;

add_string( "" );
     add_userstring( NULL, 0 );
     add_userstring( &space, sizeof(space) );
     add_blob( NULL, 0 );
+
+    generate_guid( &guid );
+    add_guid( &guid );
 }

static void build_streams( const statement_list_t *stmts )
@@ -441,6 +460,9 @@ static void build_streams( const statement_list_t *stmts )
     streams[STREAM_BLOB].data_size = blobs.offset;
     streams[STREAM_BLOB].data = blobs.ptr;

+    streams[STREAM_GUID].data_size = guids.offset;
+    streams[STREAM_GUID].data = guids.ptr;
+
     for (i = 0; i < STREAM_MAX; i++)
     {
         if (!streams[i].data_size) continue;