134 lines
2.7 KiB
HTML
134 lines
2.7 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of selinux_file_context_cmp</TITLE>
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</HEAD><BODY>
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<H1>selinux_file_context_cmp</H1>
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Section: C Library Functions (3)<BR>Updated: 08 March 2011<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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selinux_file_context_cmp - Compare two SELinux security contexts excluding the 'user' component
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>#include <<A HREF="file:///usr/include/selinux/selinux.h">selinux/selinux.h</A>></B>
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<P>
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<B>int selinux_file_context_cmp(const char *</B><I>a</I><B>, </B>
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<DL COMPACT><DT id="1"><DD>
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<B>const char *</B><I>b</I><B>);</B>
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</DL>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>selinux_file_context_cmp</B>()
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compares two context strings excluding the user component with
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<B><A HREF="/cgi-bin/man/man2html?3+strcmp">strcmp</A></B>(3)
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as shown in the
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<B>EXAMPLE</B>
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section.
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<P>
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This is useful as for most object contexts, the user component is not relevant.
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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The return values follow the
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<B><A HREF="/cgi-bin/man/man2html?3+strcmp">strcmp</A></B>(3)
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function, where:
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<DL COMPACT><DT id="2"><DD>
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0 if they are equal.
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</DL>
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<DL COMPACT><DT id="3"><DD>
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1 if
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<I>a</I>
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is greater than
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<I>b</I>
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</DL>
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<DL COMPACT><DT id="4"><DD>
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-1 if
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<I>a</I>
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is less than
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<I>b</I>
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</DL>
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<A NAME="lbAF"> </A>
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<H2>ERRORS</H2>
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None.
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<A NAME="lbAG"> </A>
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<H2>NOTES</H2>
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The contexts being compared do not specifically need to be file contexts.
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<A NAME="lbAH"> </A>
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<H2>EXAMPLE</H2>
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If context
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<I>a</I>
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is:
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<DL COMPACT><DT id="5"><DD>
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user_u:user_r:user_t:s0
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</DL>
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<P>
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and context
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<I>b</I>
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is:
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<DL COMPACT><DT id="6"><DD>
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root:user_r:user_t:s0
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</DL>
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<P>
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then the actual strings compared are:
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<DL COMPACT><DT id="7"><DD>
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:user_r:user_t:s0 and :user_r:user_t:s0
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</DL>
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<P>
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Therefore they will match and
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<B>selinux_file_context_cmp</B>()
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will return zero.
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?8+selinux">selinux</A></B>(8)
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="8"><A HREF="#lbAB">NAME</A><DD>
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<DT id="9"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="10"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="11"><A HREF="#lbAE">RETURN VALUE</A><DD>
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<DT id="12"><A HREF="#lbAF">ERRORS</A><DD>
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<DT id="13"><A HREF="#lbAG">NOTES</A><DD>
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<DT id="14"><A HREF="#lbAH">EXAMPLE</A><DD>
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<DT id="15"><A HREF="#lbAI">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:56 GMT, March 31, 2021
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