Security and proper coding are different issues but they are closely related. Improper coding is a significant source of security vulnerabilities. Remember all of those memory overrun attacks that were so popular a few years back?.

There are many ways to detect improper coding - reading the code, team code reviews, lint checkers, and ... checks for undefined/mis-spelt variables, mismatches of parameter types. Computers are generally better than the human eye at catching those sorts of things, which is why we write syntax checkers and compilers with rich diagnostics. That feedback isn't just for newbies learning to code.

In Perl some of these can only be done at run-time because Perl is a loosely typed language and defines itself as it goes, but even with that limitation Perl does a fairly good job at the task if you use the warnings and strict pragmas.

Even very, very good coders can make dangerous typos.

Best, beth.

In reply to Re^4: What restrictions are there on code execution when running perl in syntax check mode? by ELISHEVA
in thread What restrictions are there on code execution when running perl in syntax check mode? by ELISHEVA

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.