check pointer before dereferencing it
tree478e3ae56f2cdf6d7b157d4016d988470e8d8258
-rw-r--r-- 11 .cvsignore
-rw-r--r-- 17982 COPYING
-rw-r--r-- 3311 Manifest
-rw-r--r-- 6579 README
-rw-r--r-- 0 Read-Manifest-Now
-rw-r--r-- 1891 Roadmap
-rw-r--r-- 17375 WHATSNEW.txt
drwxr-xr-x - docs
drwxr-xr-x - examples
drwxr-xr-x - packaging
drwxr-xr-x - pcp
drwxr-xr-x - source
drwxr-xr-x - swat
drwxr-xr-x - testsuite