fix gsn_restart file buffer overflow and missing path sep
Fix errors during gsn_restart file path composition:
- possible buffer overflow because the wrong remaining length was fed to
strncat().
- missing path separator: put restart file in dir/gsn_restart instead of
../dirgsn_restart.
This assumes that the path separator is '/'.
Use talloc_asprintf() to fix all filename length problems and shorten the code.
In order to free the allocated path, add a free_filename label, and jump there
instead of returning from the fopen("w") failure branch. Also don't return from
"fclose failed" branch in order to free the path, remove the if {} braces.
Change-Id: Idf0a64ff45720aa818f2f9de1e8ba2fe2c82631b
1 file changed