105 lines
2.4 KiB
HTML
105 lines
2.4 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 GROUP_MEMBER</TITLE>
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</HEAD><BODY>
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<H1>GROUP_MEMBER</H1>
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Section: Linux Programmer's Manual (3)<BR>Updated: 2014-03-30<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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group_member - test whether a process is in a group
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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/unistd.h">unistd.h</A>></B>
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<P>
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<B>int group_member(gid_t </B><I>gid</I><B>);</B>
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<P>
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Feature Test Macro Requirements for glibc (see
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<B><A HREF="/cgi-bin/man/man2html?7+feature_test_macros">feature_test_macros</A></B>(7)):
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<P>
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<B>group_member</B>():
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_GNU_SOURCE
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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The
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<B>group_member</B>()
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function tests whether any of the caller's supplementary group IDs
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(as returned by
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<B><A HREF="/cgi-bin/man/man2html?2+getgroups">getgroups</A></B>(2))
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matches
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<I>gid</I>.
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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The
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<B>group_member</B>()
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function returns nonzero if any of the caller's
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supplementary group IDs matches
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<I>gid</I>,
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and zero otherwise.
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<A NAME="lbAF"> </A>
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<H2>CONFORMING TO</H2>
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This function is a nonstandard GNU extension.
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<A NAME="lbAG"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?2+getgid">getgid</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+getgroups">getgroups</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?3+getgrouplist">getgrouplist</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?5+group">group</A></B>(5)
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<A NAME="lbAH"> </A>
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<H2>COLOPHON</H2>
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This page is part of release 5.05 of the Linux
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<I>man-pages</I>
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
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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="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="4"><A HREF="#lbAE">RETURN VALUE</A><DD>
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<DT id="5"><A HREF="#lbAF">CONFORMING TO</A><DD>
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<DT id="6"><A HREF="#lbAG">SEE ALSO</A><DD>
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<DT id="7"><A HREF="#lbAH">COLOPHON</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: 00:05:45 GMT, March 31, 2021
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</BODY>
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</HTML>
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