1 files changed, 145 insertions, 0 deletions
diff --git a/source/blender/blenloader/intern/runtime.c b/source/blender/blenloader/intern/runtime.c
new file mode 100644
index 00000000000..f5308b5ea5c
--- /dev/null
+++ b/source/blender/blenloader/intern/runtime.c
@@ -0,0 +1,145 @@
+/*
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ */
+
+/**
+ * \file runtime.c
+ * \brief This file handles the loading of .blend files embedded in runtimes
+ * \ingroup blenloader
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#ifdef WIN32
+#include <io.h>		// read, open
+#include "BLI_winstuff.h"
+#else // ! WIN32
+#include <unistd.h>		// read
+#endif
+
+#include "BLO_readfile.h"
+#include "BLO_runtime.h"
+
+#include "BKE_blender.h"
+#include "BKE_report.h"
+#include "BKE_utildefines.h"
+
+#include "BLI_blenlib.h"
+
+/* Runtime reading */
+
+static int handle_read_msb_int(int handle)
+{
+	unsigned char buf[4];
+
+	if(read(handle, buf, 4) != 4)
+		return -1;
+
+	return (buf[0]<<24) + (buf[1]<<16) + (buf[2]<<8) + (buf[3]<<0);
+}
+
+int BLO_is_a_runtime(char *path)
+{
+	int res= 0, fd= open(path, O_BINARY|O_RDONLY, 0);
+	int datastart;
+	char buf[8];
+
+	if(fd==-1)
+		goto cleanup;
+	
+	lseek(fd, -12, SEEK_END);
+	
+	datastart= handle_read_msb_int(fd);
+
+	if(datastart==-1)
+		goto cleanup;
+	else if(read(fd, buf, 8)!=8)
+		goto cleanup;
+	else if(memcmp(buf, "BRUNTIME", 8)!=0)
+		goto cleanup;
+	else
+		res= 1;
+
+cleanup:
+	if(fd!=-1)
+		close(fd);
+
+	return res;	
+}
+
+BlendFileData *BLO_read_runtime(char *path, ReportList *reports)
+{
+	BlendFileData *bfd= NULL;
+	size_t actualsize;
+	int fd, datastart;
+	char buf[8];
+
+	fd= open(path, O_BINARY|O_RDONLY, 0);
+
+	if(fd==-1) {
+		BKE_reportf(reports, RPT_ERROR, "Unable to open \"%s\": %s.", path, strerror(errno));
+		goto cleanup;
+	}
+	
+	actualsize= BLI_filesize(fd);
+
+	lseek(fd, -12, SEEK_END);
+
+	datastart= handle_read_msb_int(fd);
+
+	if(datastart==-1) {
+		BKE_reportf(reports, RPT_ERROR, "Unable to read  \"%s\" (problem seeking)", path);
+		goto cleanup;
+	}
+	else if(read(fd, buf, 8)!=8) {
+		BKE_reportf(reports, RPT_ERROR, "Unable to read  \"%s\" (truncated header)", path);
+		goto cleanup;
+	}
+	else if(memcmp(buf, "BRUNTIME", 8)!=0) {
+		BKE_reportf(reports, RPT_ERROR, "Unable to read  \"%s\" (not a blend file)", path);
+		goto cleanup;
+	}
+	else {	
+		//printf("starting to read runtime from %s at datastart %d\n", path, datastart);
+		lseek(fd, datastart, SEEK_SET);
+		bfd = blo_read_blendafterruntime(fd, path, actualsize-datastart, reports);
+		fd= -1;	// file was closed in blo_read_blendafterruntime()
+	}
+	
+cleanup:
+	if(fd!=-1)
+		close(fd);
+	
+	return bfd;
+}
+