symbian Symbian OS v9.X SIS File Format Specification Version1.1 June 2006 Contents 1 INTRODUCTION.. 3 1.1 PURPOSE AND SCOPE SIS FILE FORMAT..... 21 OVERVIEW 2.1.1 Note on Reservation of SIS Field Values. 2.2 INTEGRITY. 2.3 EXTENSIBILITY. 2.4 COMPRESSION .4 2.5 NESTING 4 2.6 SUPPORTING THE RE-SIGNING OF A SIS FILE 2.7 PROGRAMMING CONSIDERATIONS..... 2.7.1 File Format. 4 2.7.2 Memory usage...... 2.8 SUPPORTING THE EMBEDDING OF A SIS FILE .5 2.9 BYTE ORDERING. 6 2.10 TEXT CHARACTER SET 7 2.11 FILE LIMITATIONS. .7 2.12 SIS FILE STRUCTURE OVERVIEW. 7 2123%oet 12 SIS FILE STRUCTURE. .8 3.1 FILE HEADER STRUCTURE 3131n3 3.1.4 UID Checksum. 0 SIS FIELDS.. 4.1 GENERAL SISFIELDS 411 SISSSymbian OS v9.X SIS File Format Specification Version 1.1 June 2006 Contents 1 INTRODUCTION ....................................................................................................... 3 1.1 PURPOSE AND SCOPE ................................................................................................. 3 2 SIS FILE FORMAT.................................................................................................... 3 2.1 OVERVIEW .................................................................................................................. 3 2.1.1 Note on Reservation of SIS Field Values............................................................... 3 2.2 INTEGRITY................................................................................................................... 3 2.3 EXTENSIBILITY............................................................................................................. 4 2.4 COMPRESSION ............................................................................................................ 4 2.5 NESTING ..................................................................................................................... 4 2.6 SUPPORTING THE RE-SIGNING OF A SIS FILE ................................................................ 4 2.7 PROGRAMMING CONSIDERATIONS................................................................................ 4 2.7.1 File Format............................................................................................................. 4 2.7.2 Memory usage ....................................................................................................... 5 2.8 SUPPORTING THE EMBEDDING OF A SIS FILE ................................................................ 5 2.9 BYTE ORDERING.......................................................................................................... 6 2.10 TEXT CHARACTER SET ................................................................................................ 7 2.11 FILE LIMITATIONS ........................................................................................................ 7 2.12 SIS FILE STRUCTURE OVERVIEW................................................................................. 7 2.12.2 Alignment ............................................................................................................... 8 2.12.3 Notation.................................................................................................................. 8 3 SIS FILE STRUCTURE............................................................................................. 8 3.1 FILE HEADER STRUCTURE ........................................................................................... 8 3.1.1 UID 1...................................................................................................................... 9 3.1.2 UID 2...................................................................................................................... 9 3.1.3 UID 3...................................................................................................................... 9 3.1.4 UID Checksum....................................................................................................... 9 4 SIS FIELDS ............................................................................................................... 9 4.1 GENERAL SISFIELDS................................................................................................... 9 4.1.1 SISString................................................................................................................ 9 4.1.2 SISArray................................................................................................................. 9