150 lines
3.3 KiB
HTML
150 lines
3.3 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 DLERROR</TITLE>
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</HEAD><BODY>
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<H1>DLERROR</H1>
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Section: Linux Programmer's Manual (3)<BR>Updated: 2017-09-15<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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dlerror - obtain error diagnostic for functions in the dlopen API
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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/dlfcn.h">dlfcn.h</A>></B>
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<P>
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<B>char *dlerror(void);</B>
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<P>
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Link with <I>-ldl</I>.
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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>dlerror</B>()
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function returns a human-readable,
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null-terminated string describing the most recent error
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that occurred from a call to one of the functions in the dlopen API
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since the last call to
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<B>dlerror</B>().
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The returned string does
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<I>not</I>
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include a trailing newline.
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<P>
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<B>dlerror</B>()
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returns NULL if no errors have occurred since initialization or since
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it was last called.
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<A NAME="lbAE"> </A>
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<H2>VERSIONS</H2>
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<B>dlerror</B>()
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is present in glibc 2.0 and later.
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<A NAME="lbAF"> </A>
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<H2>ATTRIBUTES</H2>
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For an explanation of the terms used in this section, see
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<B><A HREF="/cgi-bin/man/man2html?7+attributes">attributes</A></B>(7).
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<TABLE BORDER>
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<TR VALIGN=top><TD><B>Interface</B></TD><TD><B>Attribute</B></TD><TD><B>Value</B><BR></TD></TR>
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<TR VALIGN=top><TD>
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<B>dlerror</B>()
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</TD><TD>Thread safety</TD><TD>MT-Safe<BR></TD></TR>
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</TABLE>
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<A NAME="lbAG"> </A>
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<H2>CONFORMING TO</H2>
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POSIX.1-2001.
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<A NAME="lbAH"> </A>
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<H2>NOTES</H2>
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The message returned by
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<B>dlerror</B>()
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may reside in a statically allocated buffer that is
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overwritten by subsequent
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<B>dlerror</B>()
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calls.
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<A NAME="lbAI"> </A>
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<H3>History</H3>
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This function is part of the dlopen API, derived from SunOS.
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<A NAME="lbAJ"> </A>
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<H2>EXAMPLE</H2>
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See
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<B><A HREF="/cgi-bin/man/man2html?3+dlopen">dlopen</A></B>(3).
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<A NAME="lbAK"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?3+dladdr">dladdr</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+dlinfo">dlinfo</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+dlopen">dlopen</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+dlsym">dlsym</A></B>(3)
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<A NAME="lbAL"> </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">VERSIONS</A><DD>
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<DT id="5"><A HREF="#lbAF">ATTRIBUTES</A><DD>
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<DT id="6"><A HREF="#lbAG">CONFORMING TO</A><DD>
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<DT id="7"><A HREF="#lbAH">NOTES</A><DD>
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<DL>
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<DT id="8"><A HREF="#lbAI">History</A><DD>
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</DL>
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<DT id="9"><A HREF="#lbAJ">EXAMPLE</A><DD>
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<DT id="10"><A HREF="#lbAK">SEE ALSO</A><DD>
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<DT id="11"><A HREF="#lbAL">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: 00:05:38 GMT, March 31, 2021
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