unyaffs

Unyaffs (http://code.google.com/p/unyaffs/) is a nice little program for extracting files from a yaffs image.

Current limitations

• Permissions only partly restored
  • The current umask is applied to the permissions
  • Directories get permission 0777 (modified by umask)
• File ownership not restored
• File dates not restored
• Special files (device nodes) not restored
• Fixed yaffs chunk size of 2048 byte
• No checks against corrupted images, crashes and buffer overflows are possible
• Compiler warnings, when compiled with -Wall

Modifications

I modified unyaffs to overcome the above limitations, it's available at GitHub. You can directly download it from here.