NAME
pscan - Format string security checker for C source code
SYNOPSIS
pscan [options]
DESCRIPTION
pscan is a source code analysis tool which is designed to highlight
potentially dangerous uses of variadic functions such as "printf",
"syslog", etc. The scan works by looking for a one of a list of
problem functions, and applying the following rule:
IF the last parameter of the function is the format string, AND the
format string is NOT a static string, THEN complain.
LIMITATIONS
The code will not report on some potention buffer overflows, because
that is not its goal. For example the following code is potential
dangerous:
sprintf(static_buffer, %s/.foorc", getenv("HOME"));"
This code could cause an issue as there is no immediately obvious
bounds checking. However this is a safe usages with regards to format
strings.
RETURN VALUES
If there are any errors found, pscan exits with status 1.
AUTHOR
Alan DeKok <aland@ox.org>