152 lines
2.5 KiB
HTML
152 lines
2.5 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Other Inputs</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Secure Programming for Linux and Unix HOWTO"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Validate All Input"
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HREF="input.html"><LINK
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REL="PREVIOUS"
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TITLE="Web-Based Application Inputs (Especially CGI Scripts)"
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HREF="web-apps.html"><LINK
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REL="NEXT"
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TITLE="Human Language (Locale) Selection"
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HREF="locale.html"></HEAD
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><BODY
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CLASS="SECT1"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>Secure Programming for Linux and Unix HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="web-apps.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 5. Validate All Input</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="locale.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="OTHER-INPUTS"
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></A
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>5.7. Other Inputs</H1
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><P
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>Programs must ensure that all inputs are controlled; this is particularly
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difficult for setuid/setgid programs because they have so many such inputs.
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Other inputs programs must consider include the current directory,
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signals, memory maps (mmaps), System V IPC, pending timers,
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resource limits, the scheduling priority, and the umask (which determines
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the default permissions of newly-created files).
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Consider explicitly changing directories (using chdir(2)) to an appropriately
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fully named directory at program startup.</P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="web-apps.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="locale.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Web-Based Application Inputs (Especially CGI Scripts)</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="input.html"
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ACCESSKEY="U"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Human Language (Locale) Selection</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |