PSCAN(1)
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>